2013 alstom swirl block register

8/12/2019 2013 Alstom Swirl Block Register

http://slidepdf.com/reader/full/2013-alstom-swirl-block-register 1/10

US008517719B2

( 1 2 ) Ulllted States Patent ( 1 0 ) P a t e n t N 0 . : U S 8 , 5 1 7 , 7 1 9 B2B r i g g s , J r . 4 5 ) D a t e o f P a t e n t : A u g . 2 7 , 2 0 1 3

5 4 ) SWIRL BLOCK REGISTER DESIGN FOR 2 i g o g l f f f é e t a 1 ~ ~ ~ ~ ~ ~ ~ ~ ~ 1 3 7 / 6 2 5 8 ;, , oor e1s ..................... .

WALL IRED BURNERS 3 , 1 4 5 , 6 7 0 A * 8 / 1 9 6 4 Copian t a 1 . 4 3 1 / 1 8 4

_ _ 3,244,220 A * 4/1966 Kloecker 431/167

( 7 5 ) In v e n t o r : Ol1ver G.Br1ggs,Jr., J e f f e r s o n , MA 3 , 9 3 2 , 1 1 0 A 4 H1976 Waddell “ “ 431/184

(US) 4 , 1 5 5 , 7 0 1 A * 5 / 1 9 7 9 P r i m a s 4 3 1 / 1 8 3

4,203,718 A 5/1980 Tracy . . . . . . . . . . 431/188

( 7 3 ) A s s i g n e e : ALSTOM echnology L t d , Baden (CH) 4 , 6 0 4 , 0 5 2 A 8 / 1 9 8 6 Brown t 3 1 4 3 1 / 1 6 84,681,532 A 7/1987 Chung . . . . . . . . 431/183

( * ) N o t i c e : S u b j e c t t o a n y d i s c l a i m e r , t h e t e r m o f t h i s 2 * ( A Z / [ 1 3 2 %a w n t i s e x t e n d e d O r a d j u s t e d u n d e r 3 5 5 3 8 0 6 3 4 4 3 A * 9 / 1 9 9 8 K o b a y a s h i é i 5 1 ' . : 1 : 1 1 0 / 2 6 2

U . S . C . 1 5 4 ( b ) by 514 d a y s . 2 0 0 5 / 0 1 4 7 4 9 2 Al* 7 / 2 0 0 5 Mahoney t a l . . . 4 1 5 / 1 4 8

2009/0025395 A1 1/2009 Nilsson et al. . . . . . . . . .. 60/748

2 1 A 1 _ N O _ ; 12/394 612 2 0 0 9 / 0 2 7 2 1 1 7 A1* 1 1 / 2 0 0 9 Wilbraham 6 0 / 7 4 8( ) PP2009/0277179 A 1 * 1 1 / 2 0 0 9 Wilbraham 6 0 / 7 4 8

_ 2009/0301092 A1 12/2009 Wilbraham 60/748

( 2 2 ) F l l e d Feb 27’2009 2 0 0 9 / 0 3 2 0 4 8 5 Al* 1 2 / 2 0 0 9 W i l b r a h a m 6 0 / 7 4 8

2010/0107644 A 1 * 5 / 2 0 1 0 Wilbraham 6 0 / 7 4 8

( 6 5 ) Prior P u b l i c a t i o n Data 2 0 1 0 / 0 1 7 5 3 8 1 Al* 7 / 2 0 1 0 W i l b r a h a m 6 0 / 7 3 7.

Us 010/0221673 A1 SeP 2 ’ 2010 2010/0223932 A1 9/2010 Wllbraham . . . . . . . . . . . . . . . . . . . . . 60/772

* c i t e d by examiner

( 5 1 ) I n t . C ] .

F 3M / 0 0 ( 2 0 0 6 . 0 1 ) Primary Examiner enneth R i n e h a r t

( 5 2 ) US. l . A s s i s t a n t Examiner o r g e P e r e i r o

USPC . . . . . . . . . . 431/184; 431/182; 431/183; 431/185; ( 7 4 ) A t t o r n e y , A g e n t , or Firm ames . Cummings

4 3 1 / 9 ; 6 0 / 7 4 8

( 5 8 ) F i e l d o f C l a s s i ? c a t i o n S e a r c h ( 5 7 ) ABSTRACT

USPC ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4 3 1 / 9 , 1 6 6 ’ 1 6 7 : 1 6 8 : 1 8 2 : 1 8 3 : 1 8 4 : A i m p l e , e c o n o m i c a l a n d r e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] i s

_ _ _ 431/185 described for use WithaWall urner o f a commercial o i l e r . It

S e e a 1 3 1 3 1 1 0 2 1 1 1 0 1 1 ? l e f o r C o m p l e t e S e a r c h h l s t o r y - e m p l o y s a n u m b e r o f s p a c e d s W i r l b l o c k s [ 1 1 5 0 ] t h a t c o n n e c t

( 5 6 ) R Ct s i d e p l a t e s [ 1 1 1 0, 1120].Anumberofmoveable v a n e s [ 1 1 3 0 ]e erences 1 e

U . S . PATENTDOCUMENTS

1,449,840 A * 3/1923 Reid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431/183

1,527,214 A 2/1925 Peabody . . . . 431/184

1,648,937 A * 11/1927 Dickerson . . . . . . . 159/41

1,885,067 A 10/1932 Woodeson . . . . . . . . . 110/104R

1,943,083 A 1/1934 McDonald t a l . . . 431/183

2,108,621 A 2/1938 S t r a i t Z . . 431/184

2,144,098 A * 1/1939 Baker . . . . . . 431/184

2,320,576 6/1943 Dunn . . . . . . . . . . .. 239/402

2,439,554 A * 4/1948 Anderson . . . . . . 431/184

2,800,888 A 7/1957 Miller e t a l . 122/4791

2,823,889 A 2/1958 Stalker . . 416/214R

2,838,103 A * 6/1958 Voor h e is . . . . . . . . . . . . . . . . . . . . . . . 431/176

a r e p r o v i d e d i n t h e a i r d u c t s [ 1 1 5 5 ] c r e a t e d betWeen h e s W i r l

b l o c k s [ 1 1 5 0 ] . The vanes [ 1 1 3 0 ] a r e a t t a c h e d t o vane r o d s

[ 1 1 6 0 ] t h a t o p e r a t e t h e v a n e s [ 1 1 3 0 ] . The s W i r l b l o c k s [ 1 1 5 0 ]

a r e l i g h t w e i g h t a n d r i g i d s t r u c t u r e s f o r h o l d i n g t h e s i d e p l a t e

[ 1 1 1 0 ] a ?xed d i s t a n c e f r o m s i d e p l a t e [ 1 1 2 0 ] . The b l o c kc o n s t r u c t i o n r e d u c e s b i n d i n g o f t h e v a n e s [ 1 1 3 0 ] a s t h e s W i r l

r e g i s t e r [ 1 0 0 0 ] r e c e i v e s d i f f e r e n t i a l h e a t i n g . The v a n e r o d s

[ 1 1 6 0 ] e x t e n d t h r o u g h a Windbox r o n t p l a t e [ 1 2 5 0 ] o u t s i d e o f

t h e Windbox r e a . A i n k a g e a s s e m b l y [ 1 2 0 0 ] r o t a t e s t h e v a n e

r o d s [ 1 1 6 0 ] . A otor and g e a r b o x [ 1 2 3 0 ] c a u s e a l l v a n e s

[ 1 1 3 0 ] t o r o t a t e t h e same amount.

1 5 C l a i m s , 5 Drawing S h e e t s



US. Patent A u g . 2 7 , 2 0 1 3 S h e e t 1 o f 5 U S 8 , 5 1 7 , 7 1 9 B2




1 0 1 3




c



US 8 , 5 1 7 , 7 1 9 B2

1

SWIRLBLOCKREGISTERDESIGN FOR

WALL FIREDBURNERS

TECHNICAL IELD

The p r e s e n t d i s c l o s ur e r e l a t e s r e g i s t e r s f o r f u r n a c e s t h a tb u r n p u l v e r i z e d c o a l a n d more s p e c i ? c a l l y t o s W i r l r e g i s t e r s

f o r W a l l b u r n e r s o f f u r n a c e s t h a t b u r n p u l v e r i z e d c o a l .

BACKGROUND

C u r r e n t c o a l ? r e d b o i l e r s employ b u r n e r s l o c a t e d i n t h e

f u r n a c e W a l l ( “ W a l l b u r n e r s ” ) t o b u r n p u l v e r i z e d c o a l . T h e s et y p i c a l l y a r e u s e d t o make s t e a m f o r g e n e r a t i o n o f l e c t r i c i t y .

G e n e r a l l y , p u l v e r i z e d c o a l i s s u s p e n d e d i n a n a i r s t r e a m

and bloWn i n t o a b o i l e r ’ s fumace f o r b u r n i n g . A i r i s i n t r o

d u c e d i n t o t h e c o m b u s t i o n c h a m b e r t h r o u g h r e g i s t e r s a l o n g

With h e p u l v e r i z e d c o a l i n a s W i r l e d f a s h i o n around a c o r e of

t h e p u l v e r i z e d c o a l s t r e a m . T h i s p r o v i d e s more ? i c i e n t bum

i n g and c o n t r o l o v e r NO, e m i s s i o n s .

Combustion i r i s p r o v i d e d t o t h e r e g i s t e r s t h r o u g h a n a i rc o n d u i t r e f e r r e d t o a s a ‘Windbox’. The a i r p a s s e s from t h e

W i n d b o x t h r o u g h t h e r e g i s t e r s i n t o t h e c o m b u s t i o n c h a m b e r .

Some r e g i s t e r s e m p l o y v a n e s t h a t d i r e c t t h e i n c o m i n gs t r e a m o f a i r i n t o a h e l i c a l s h a p e . The f u e l s t r e a m p a s s e s

l o n g i t u d i n a l l y t h r o u g h t h e c e n t e r o f h e b u r n e r a n d m i x e s W i t h

t h e s W i r l i n g a i r from h e r e g i s t e r . The a n e s may e moveable

t o a d j u s t t h e s W i r l o f i r e n t e r i n g t h e r e g i s t e r . T h e p o s i t i o n o f

t h e v a n e s c h a n g e s t h e r a t i o o f a x i a l a i r ? o W t o t a n g e n t i a l

a i r ? o W .

T h e s e d i f f e r e n t ? o W p a t t e r n s d e t e r m i n e t h e s h a p e a n d

l e n g t h o f t h e ?ame r o d u c e d a n d a l l o W t h e p r o p o r t i o n o f t h e

a i r ’ s a x i a l a n d t a n g e n t i a l c o m p o n e n t t o c h a n g e t h e s h a p e o f

t h e ? a m e . The p r o p e r ?ame s h a p e r e d u c e s ?ame q u e n c h i n g

When t c o n t a c t s t h e f a r b o i l e r W a l l .

T h e r e f o r e , i t i s i m p o r t a n t t o be a b l e t o a d j u s t t h e v a n e s t o

p r o v i d e more e ? i c i e n t c o m b u s t i o n .

I n t h e p r i o r a r t d e s i g n s t h e l i n k a g e mechanism h a t c o n t r o l s

t h e p o s i t i o n o f t h e v a n e s Was l o c a t e d i n t h e Windbox. T y p i

c a l l y , t h i s i s a c c e p t a b l e . H o W e v e r , When e r t a i n r e g e n e r a t i v ea i r h e a t e r s a r e u s e d , e x h a u s t g a s i m p u r i t i e s , s u c h a s ?yash s

t r a n s f e r r e d from h e e x i t i n g ?ue g a s i n t o t h e W i n d b o x . S i n c e

t h e mechanism o r o t a t e t h e v a n e s i s a l s o i n t h e Windbox, t h e

a c c u m u l a t i o n o f t h e s e i m p ur i t i e s c a u s e s c l o g g i n g a n d f a i l u r eof h e vane motion m echanism.

P r i o r a r t d e s i g n s have t h e v a n e s on p i v o t s betWeen tWo

p a r a l l e l p l a t e s . The p l a t e a n d v a n e c l o s e r t o t h e c o m b u s t i o n

c h a m b e r e x p e r i e n c e s a h i g h e r t e m p e r a t u r e . The l a t e f u r t h e rfrom h e c o m b u s t i o n chamber e x p e r i e n c e s a l o W e r t e m p e r a

t u r e . The t e m p e r a t u r e d i f f e r e n t i a l c a u s e s d i f f e r e n t i a l expan

s i o n o f h e p a r t s and t r u c t u r e . T h i s v a r i a b l e e x p a n s i o n c a u s e s

b i n d i n g o f t h e v a n e s b e t W e e n t h e p l a t e s . T h i s b i n d i n g p r o h i b

i t s t h e motion o f t h e v a n e s , and e a d s t o i n e ? i c i e n t o p e r a t i o n .

Since d i f f e r e n t vanes and d i f f e r e n t number of vanes may

b i n d a t d i f f e r e n t t i m e s , i t i n t r o d u c e s m e c h a n i c a l and e l i a b i l

i t y p r o b l e m s .What f u r t h e r c o m p l i c a t e s t h e s i t u a t i o n i s t h a t t h e mecha

nism h a t o p e r a t e s t h e motion f h e v a n e s i s t y p i c a l l y l o c a t e d

W i t h i n t h e Windbox. I t s l o c a t i o n i s d i f ? c u l t t o a c c e s s f o r

m a i n t e n a n c e . I t may e q u i r e s h u t t i n g doWn h e b o i l e r a n d may

a l s o r e q u i r e d i s a s s e m b l y t o a c c e s s t h e Windbox t o a d j u s t o r

r e p a i r t h e m e c h a n i s m .

C u r r e n t l y , t h e r e i s a need f o r an e ? i c i e n t b u r n e r f o r a

f u r n a c e t h a t i s s i m p l e , i n e x p e n s i v e a n d more r e l i a b l e t h a n

c u r r e n t d e s i g n s .

SUMMARY

The p r e s e n t i n v e n t i o n may be embodied s a s W i r l r e g i s t e r

[ 1 0 0 0 ] f o r u s e i n a fumace With a Windbox c o m p r i s i n g :

20

25

30

35

40

45

50

55

60

6 5

2

a ? r s t s i d e p l a t e [ 1 1 1 0 ] b e i n g g e n e r a l l y ? a t ;a s e c o n d s i d e p l a t e [ 1 1 2 0 ] b e i n g g e n e r a l l y ? a t ;a p l u r a l i t y o f s W i r l b l o c k s [ 1 1 5 0 ] s p a c e d a p a r t f r o m e a c h

o t h e r c o n n e c t e d betWeen h e s i d e p l a t e s [ 1 1 1 0 , 1 1 2 0 ] s o a s t o

c a u s e t h e s i d e p l a t e s [ 1 1 1 0 , 1 1 2 0 ] t o b e ?xed g e n e r a l l y p a r

a l l e l t o e a c h o t h e r , and o c r e a t e a p l u r a l i t y o f i r d u c t s [ 1 1 5 5 ]

b e t W e e n t h e s W i r l b l o c k s [ 1 1 5 0 ] ;a p l u r a l i t y o f vane r o d s [ 1 1 6 0 ] e a c h h a v i n g a ? r s t end and

a s e c o n d e n d , t h e v a n e r o d s [ 1 1 6 0 ] e x t e n d i n g g e n e r a l l y p e r

p e n d i c u l a r l y t h r o u g h t h e s e c o n d s i d e p l a t e [ 1 1 2 0 ] ;a p l u r a l i t y of a n e s [ 1 1 3 0 ] each a t t a c h e d t o t h e ? r s t end of

e a c h v a n e r o d [ 1 1 6 0 ] and p o s i t i o n e d W i t h i n t h e a i r d u c t s

[ 1 1 5 5 ] , such t h a t t h e vanes [ 1 1 3 0 ] a r e alloWed t o m o v e

betWeen c l o s e d p o s i t i o n i n Which h e v a n e s [ 1 1 3 0 ] c l o s e t h e

a i r d u c t s [ 1 1 5 5 ] and t l e a s t one open p o s i t i o n i n Which t h e

d u c t s [ 1 1 5 5 ] a r e a t l e a s t p a r t i a l l y open When t h e vane r o d s

[ 1 1 6 0 ] a r e r o t a t e d .

OBJECTS OFTHE INVENTION

I t i s a n o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a s i m p l e

a n d e c o n o m i c a l W a l l b u r n e r s W i r l r e g i s t e r .

I t i s a n o t h e r o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a

more r e l i a b l e W a l l b u r n e r s W i r l r e g i s t e r t h a n c u r r e n t d e s i g n s .

I t i s a n o t h e r o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a

W a l l b u r n e r s W i r l r e g i s t e r t h a t e m p l o y s v a n e s t h a t e x h i b i t l e s s

b i n d i n g t h a n c o n v e n t i o n a l s W i r l r e g i s t e r s .I t i s a n o t h e r o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a

W a l l b u r n e r s W i r l r e g i s t e r t h a t employs a more r e l i a b l e vane

m o ve m e n t mechanism.

I t i s an o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a W a l l

b u r n e r s W i r l r e g i s t e r t h a t W i t h s t a n d s l a r g e t e m p e r a t u r e d i f f e re n t i a l s W i t h o u t f a i l u r e .

I t i s an o b j e c t o f t h e p r e s e n t i n v e n t i o n t o p r o v i d e a W a l l

b u r n e r s W i r l r e g i s t e r t h a t i s more a c c e s s i b l e and e a s i e r t o

m a i n t a i n .

BRIEF DESCRIPTIONOFTHE DRAWINGS

R e f e r r i n g noW t o t h e d r a W i n g s , Wherein l i k e i t e m s a r e

numbered a l i k e i n t h e v a r i o u s F i g u r e s :

FIG. 1 i s a f r o n t p e r s p e c t i v e vieW of s W i r l r e g i s t e r f o r a

p u l v e r i z e d s o l i d f u e l b u r n e r a c c o r d i n g t o t h e p r e s e n t i n v e n

t i o n ;F I G . 2 i s a r e a r p e r s p e c t i v e vieW f h e s W i r l r e g i s t e r o f F I G .

1 ;FIG. 3 i s a s i d e e l e v a t i o n a l vieW of n o t h e r embodiment of

t h e s W i r l r e g i s t e r ;FIG. 4 i s a c r o s s s e c t i o n a l vieW of W i r l r e g i s t e r of FIG. 3

a l o n g l i n e s “ B - B ” ;

FIG. 5 i s a c r o s s s e c t i o n a l vieW of W i r l r e g i s t e r of FIG. 3

a l o n g l i n e s “ A - A ” .

DETAILEDDESCRIPTION

A neW s W i r l r e g i s t e r d e s i g n h a s b e e n d e v e l o p e d W h i c h

p r o v i d e s f o r a r e l i a b l e , r i g i d , y e t l i g h t W e i g h t d e v i c e .T h i s s W i r l r e g i s t e r i n c l u d e s p i v o t i n g v a n e s t h a t , d e p e n d i n g

upon t h e i r p o s i t i o n , p r o v i d e s a f u l l r a n g e o f s W i r l d i r e c t i o n s

f r o m f u l l a x i a l ? o W o f u l l t a n g e n t i a l ? o W . The s W i r l r e g i s t e r

a l s o i s a d j u s t a b l e t o s t o p a i r ? o W , a s r e q u i r e d i n a b u r n e r s h u t

o f f p o s i t i o n .F I G . 1 i s a f r o n t p e r s p e c t i v e vieW o f a s W i r l r e g i s t e r 1000

f o r a b u r n e r f o r p u l v e r i z e d s o l i d f u e l a c c o r d i n g t o t h e p r e s e n t

i n v e n t i o n . F I G . 2 i s a r e a r p e r s p e c t i v e vieW of h e s W i r l r e g

i s t e r 1000 o f F I G . 1 . T h i s embodiment i l l be d e s c r i b e d W i t h

r e f e r e n c e t o FIGS. 1 and .



US 8 , 5 l 7 , 7 l 9 B2

3

The s w i r l r e g i s t e r 1 0 0 0 c o n s i s t s o f t w o p a r a l l e l s i d e p l a t e s

1 1 1 0 , 1 1 2 0 s e p a r a t e d a n d j o i n e d t o g e t h e r b y a s e r i e s o f s w i r lb l o c k s 1 1 5 0 . These s w i r l b l o c k s 1150 a r e a t t a c h e d between

t h e s i d e p l a t e s 1 1 1 0 , 1 1 2 0 t o p r o v i d e a l i g h t w e i g h t a n d r i g i ds t r u c t u r e .

T h i s r i g i d s t r u c t u r e r e s i s t s t w i s t i n g a n d ? e x i n g u n d e r v a r i

a b l e h e a t i n g c o n d i t i o n s w h i c h h a v e c a u s e d p r o b l e m s i n p r i o ra r t r e g i s t e r s .

The s w i r l b l o c k s 1150 each have an angled s i d e , o r a r e

p o s i t i o n e d t o h a v e a n g l e d s i d e s t o c r e a t e a n g l e d i r d u c t s 1155

b e t w e e n t h e m . The a n g l e d a i r d u c t s 1 1 5 5 d i r e c t a i r r a d i a l l y

inward a s w e l l a s t a n g e n t i a l l y around a c i r c u m f e r e n t i a l p a t h

w i t h i n t h e s w i r l r e g i s t e r 1 0 0 0 . The a n g l e d a i r d u c t s 1 1 5 5

c a u s e s w i r l i n g o f t h e s e c o n d a r y a i r p r i o r t o m i x i n g i t w i t h t h e

f u e l s t r e a m .

A l u r a l i t y o f v a n e s 1130 i s p r o v i d e d i n e a c h o f t h e a i r

d u c t s 1 1 5 5 . These f u n c t i o n t o a l l o w t h e a i r d u c t s 1155 t o

r e m a i n f u l l y o p e n , p a r t i a l l y o p e n e d o r f u l l y c l o s e d . I n t h e

f u l l y c l o s e d p o s i t i o n , a i r i s p r e v e n t e d f r o m ? o w i n g t h o u g h t h ea i r d u c t s 1 1 5 5 o f s w i r l r e g i s t e r 1 0 0 0 , s h u t t i n g o f f t h e b u r n e r

w hen t i s n o t i n s e r v i c e .

Each vane 1130 s attached o a vane rod 1160 t h a t r o t a t e s

i t s r e s p e c t i v e v a n e 1 1 3 0 t o a d j u s t t h e o p e n i n g o f t s r e s p e c t i v e

a i r d u c t 1 1 5 5 . The vane r o d s 1160 e a c h e x t e n d t h r o ug h s i d e

p l a t e 1 1 2 0 , s u p p o r t t u b e 1 1 7 0 l o c a t e d i n t h e windbox a n d

t h r o u g h a windbox r o n t p l a t e 1 2 5 0 . A i n k a g e a s s e m b l y 1 2 0 0

i s l o c a t e d o n h e windbox f r o n t p l a t e 1 2 5 0 .

Linkage a s s e m b l y 1200 l i n k s t o and r o t a t e s vane r o d s

1 1 6 0 . The vane r o d s 1160 a r e l i n k e d t o g e t h e r w i t h l i n k a g e

a s s e m b l y 1200 s o t h a t t h e y c a n b e o p e r a t e d i n u n i s o n from h e

w i n d b o x f r o n t p l a t e 1 2 5 0 . L i n k a g e a s s e m b l y 1 2 0 0 e m p l o y s agearbox 1230 h a t a c t u a t e s a d r i v e l i n k 1 2 0 1 . D r i v e l i n k 1201

i s p i v o t a l l y c o n n e c t e d t o a t a n g e n t i a l l i n k 1 2 0 3 t h a t i s p i v o t

a l l y c o n n e c t e d t o a n o t h e r d r i v e l i n k 1 2 0 1 c a u s i n g i t t o r o t a t e

t h e vane rod 1160 t o which t i s c o n n e c t e d .

S i n c e l i n k a g e a s s e m b l y 1 2 0 0 i s mounted on t h e windbox

f r o n t p l a t e 1 2 5 0 on h e s i d e f a c i n g away f r o m t h e s i d e p l a t e s1 1 1 0 , 1 1 2 0 , a n d o u t s i d e o f t h e w i n d b o x , i t i s r e a d i l y a c c e s

s i b l e w i t h o u t t h e need t o d i s a s s e m b l e t h e windbox o r s h u t

d o w n t h e f u m a c e . A l l o f t h e o p e r a t i n g mechanisms a r e

l o c a t e d e x t e r n a l t o t h e windbox. T h i s p r o v i d e s e a s y a c c e s s t o

a l i n k a g e a s s e m b l y 1200 t h a t p i v o t s t h e v a n e s 1 1 3 0 .

F I G . 3 i s a s i d e e l e v a t i o n a l view of n o t h e r embodiment of

t h e s w i r l r e g i s t e r . T h i s embodiment s h a r e s many o f t h e same

s t r u c t u r e s and u n c t i o n s o f h a t o f FIGS. 1 and , however h i s

s h o w s t h e embodiment emp loyed n a f u n c t i o n i n g b u r n e r . The

main d i f f e r e n c e i s t h a t t h e a c c e s s h o l e s a r e i n d i f f e r e n t l o c a

t i o n s .

I n t h i s view t can be s e e n t h a t windbox f r o n t p l a t e 1250

s e c u r e s t o t h e o u t s i d e of a w ind b o x w a l l 2 0 . A l u r a l i t y of

s u p p o r t t u b e s h o l d s i d e p l a t e 1120 a ?xed d i s t a n c e from

windbox w a l l 2 0 . Rods 1160 p a s s t h r o u g h h o l e s i n windbox

f r o n t p l a t e 1 2 5 0 t h r o u g h t h e w i n d b o x w a l l 2 0 t h r o u g h t h e

s u p p o r t t u b e s 1 1 7 0 , t h r o u g h s i d e p l a t e 1 1 2 0 t o a t t a c h t o v a n e s

1 1 3 0 . Vanes 1130 a r e p o s i t i o n e d between s i d e p l a t e s 1120

and 1 1 1 0 . An x t e n s i o n l i p 1500 e x t e n d s o u t o f t h e windbox

and i n t o a b u r n e r .

F u e l t u b e 1 0 , t h a t t y p i c a l l y c a r r i e s p u l v e r i z e d c o a l p a r t i c l e ss u s p e n d e d i n a i r ? o w , p a s s e s t h r o u g h t h e l e n g t h o f t h e s w i r lr e g i s t e r . S e c o n d a r y a i r p a s s e s b e t w e e n t h e s w i r l b l o c k s 1 1 5 0

a n d i n t o t h e c e n t e r o f s w i r l r e g i s t e r 1 0 0 0. T h i s s w i r l i n g ? o w

e x i t s t h r o u g h s e c o n d a r y a i r a n n u l u s 1 3 0 0 .

The l i n k a g e a s s e m b l y 1 2 0 0 shown h e r e f r o m t h e s i d e i s

d r i v e n by a g e a r b o x 1 2 3 0 . Gearbox 1230 i n c r e a s e s t h e

m e c h a n i c a l a d v a n t a g e t o p r o v i d e a smooth o t i o n o f l i n k a g e

a s s e m b l y 1 2 0 0 . T h e r e i s a p o s i t i o n i n d i c a t o r ( 1 2 3 5 o f F I G . 5 )

20

25

30

35

40

45

50

55

60

6 5

4

t h a t v i s u a l l y i n d i c a t e s t h e p o s i t i o n o f t h e v a n e s 1130 f o r

o p e r a t i o n a n d m a i n t e n a n c e p u r p o s e s .

FIG. 4 i s a c r o s s s e c t i o n a l view of w i r l r e g i s t e r of FIG. 3

a l o n g l i n e s “B-B” s h o w i n g a i r d u c t a s s e m b l y 1 1 0 0 . I n t h i s

v i e w , s w i r l b l o c k s 1150 a r e shown n phantom s i n c e t h e y a r e

on t h e o t h e r s i d e o f s i d e p l a t e 1 1 2 0 . The c o n s t r u c t i o n u s i n g

s w i r l b l o c k s 1150 r e s u l t s i n a r i g i d s t r u c t u r e .Here i t can be s e e n t h a t t w o a d j a c e n t s w i r l b l o c k s 1150

e a c h h a v e a b l o c k w a l l 1 1 5 1 , 1153 t h a t f a c e e a c h o t h e r They

a r e spaced a p a r t t o c r e a t e an a i r d u c t 1155 between t h e m . At

l e a s t one f t h e b l o c k w a l l s 1 1 5 1 , 1153 s h o u l d b e a n g l e d w i t h

r e s p e c t t o a r a d i a l d i r e c t i o n from h e c e n t e r o f s i d e p l a t e 1120

t o c r e a t e t h e r o t a t i o n of h e incoming a i r ? o w . I n t h i s c a s e t h e

b l o c k w a l l 1 1 5 1 i s a n g l e d .

The v a n e s 1130 a r e shown e r e i n a p a r t i a l l y opened o s i

t i o n a l l o w i n g s e c o n d a r y a i r t o e n t e r t h r o u g h d u c t s 1155 a s

i n d i c a t e d by h e a r r o w s marked “ A ” . The n g l e a n d g e o m e t r y

c a u s e t h e a i r t o s p i r a l around f u e l ? o w u b e 1 0 .

As t h e vane r o d s 1160 a r e r o t a t e d ( c l o c k w i s e from t h i s

view) vanes 1130 m o v e n t h e d i r e c t i o n of arrow marked “B”

t o p a r t i a l l y , o r f u l l y c l o s e a i r d u c t s 1 1 5 5 .

When vane 1130 i s r o t a t e d c o u n t e r clockwise t o touch

s w i r l b l o c k 1 1 5 0 , i t i s i n t h e a x i a l p o s i t i o n . The p o s i t i o n o f

v a n e 1130 shown h e r e i s i t s f u l l t a n g e n t i a l ? o w p o s i t i o n .

R o t a t i n g i t c l o c k w i s e c l o s e s o f f a i r ? o w .

When h e v a n e s 1130 r e f u l l y o p e n , t h e y c r e a t e t h e l o w e s t

r a t i o of w i r l i n g t o a x i a l ?o w. When h e v a n e s 1130 r e m o v e d

t o w a r d a c l o s e d p o s i t i o n , t h e y r e d u c e t h e a i r ? o w . The s w i r l

r e g i s t e r o f t h e p r e s e n t i n v e n t i o n f u n c t i o n s t o a d j u s t combus

t i o n a n d s h a p e t h e ?ame p r o d u c e d b y i t s a s s o c i a t e d b u r n e r .

When l o s e d , t h e a i r d u c t s 1 1 5 5 s h u t o f f a i r ?owing o i t s

a s s o c i a t e d b u r n e r . T h i s i s i m p o r t a n t wh en a fumace w i t h

m u l t i p l e b u r n e r s i s u s i n g l e s s t h a n a l l b u r n e r s .

FIG. 5 i s a c r o s s s e c t i o n a l view of w i r l r e g i s t e r of FIG. 3

a l o n g l i n e s “A-A” showing a vane c o n t r o l mechanism 1 6 0 0 .

I n t h i s v i e w , t h e p a r t s o f t h e l i n k a g e a s s e m b l y 1 2 0 0 a r e v i s

i b l e . A g e a r b o x 1 2 3 0 d r i v e s t h e l i n k a g e a s s e m b l y 1 2 0 0 . T h e s ecauses d r i v e l i n k 1201 t o move. T h e d r i v e l i n k s 1201 a r e a l s o

c o n n e c t e d t o t a n g e n t i a l l i n k s 1 2 0 3 . As t h e d r i v e l i n k s 1201

p i v o t a b o u t t h e v a n e r o d 1 1 6 0 , t h e y m o ve h e t a n g e n t i a l l i n k s

1 2 0 3 i n a d i r e c t i o n abound t h e p e r i m e t e r o f windbox p l a t e

1 2 5 0 . S i n c e t h e o t h e r s i d e o f e a c h t a n g e n t i a l l i n k 1 2 0 3 i s t h e n

c o n n e c t e d t o a n o t h e r d r i v e l i n k 1 2 0 1 , making a c i r c u l a r l i n k

a g e p a t t e r n . T h i s l i n k a g e a s s e m b l y 1 2 0 0 i n s u r e s t h a t a l l v a n e

r o d s 1160 r o t a t e s i m u l t a n e o u s l y by h e same a m o u n t , and r e

i n t h e same r e l a t i v e p o s i t i o n w i t h e a c h o f t h e a i r d u c t s 1 1 5 5 .

A i s u a l p o s i t i o n i n d i c a t o r 1 2 3 5 s h o w s t h e p o s i t i o n o f t h e

v a n e s 1 1 3 0 . T h i s may a l s o be supplemented w i t h e l e c t r o n i c

s e n s o r s t h a t monitor t h e p o s i t i o n of h e v a n e s 1130 and p r o

v i d e t h a t i n f o r m a t i o n t o a u s e r c o n t r o l p a n e l .

The v a n e r o d s 1160 p a s s t h r o u g h t h e windbox p l a t e 1250

t h r o u g h a p l u r a l i t y o f h o l e s i n windbox p l a t e 1 2 5 0 . Each o f

t h e s e have a s e a l i n a s m a l l b o x s t r u c t u r e c a l l e d a rod b o x s e a l

1 2 0 7 . These hold h e vane o d s 1 1 6 0 , a l l o w them o r o t a t e and

p r e v e n t s i g n i ? c a n t l e a k a g e o f h o t g a s s e s f r o m t h e w i n d b o x .

T h e r e f o r e , t h e s w i r l r e g i s t e r 1 0 0 0 a c c o r d i n g t o t h e p r e s e n t

i n v e n t i o n i s a r i g i d , l i g h t w e i g h t d e s i g n t h a t k e e p s t h e o p e r a t

i n g m e c h a n i s m s p r o p e r l y a l i g n e d , t h r o u g h o u t t h e r a n g e o f

o p e r a t i o n .The p r e s e n t i n v e n t i o n a l l o w s f o r t h e f u l l t a n g e n t i a l o r f u l l

a x i a l ?ow. I n a d d i t i o n , t h e u s e r may s e l e c t o t h e r r a t i o s o f

t a n g e n t i a l t o a x i a l ? o w . The r e s e n t i n v e n t i o n c a n b e p l a c e d i n

a c l o s e d p o s i t i o n t o s t o p air?ow t o a b u r n e r w h e n t i s n o t i n

use.

U n l i k e c o n v e n t i o n a l r e g i s t e r s , t h e s w i r l r e g i s t e r o f t h e

p r e s e n t i n v e n t i o n h a s t h e a d v a n t a g e o f m a i n t a i n i n g a c o n s i s



US 8 , 5 1 7 , 7 1 9 B2

5

t e n t i n l e t o p e n i n g f o r v a r i o u s v a n e p o s i t i o n s t h u s k e e p i n g t h e

a i r p r e s s u r e d r o p t h r o u g h t h e r e g i s t e r s u b s t a n t i a l l y c o n s t a n t .O p e r a t i n g l i n k a g e and d r i v e a r e l o c a t e d e x t e r n a l t o t h e

W i n d b o x p r o v i d i n g f o r e a s i e r i n s p e c t i o n a n d m a i n t e n a n c e . I t

a l s o p r o v i de s i n c r e a s e d r e l i a b i l i t y .The d e s i g n a l l o W s f o r a f u l l r a n g e o f s e c o n d a r y a i r s W i r l

c o n t r o l f r o m f u l l a x i a l t o t a n g e n t i a l H o w . I t a l s o i n c o r p o r a t e d

a s h u t o f f p o s i t i o n of h e vane W i t h i n t h e a i r d u c t f o r b u r n e r

a i r ? o W s h u t o f f o r b i a s i n g .

A l t h o u g h t h e i n v e n t i o n h a s b e e n d e s c r i b e d a n d i l l u s t r a t e d

W i t h r e s p e c t t o e x e m p l a r y e m b o d i m e n t s t h e r e o f , i t s h o u l d b e

u n d e r s t o o d by t h o s e s k i l l e d i n t h e a r t t h a t t h e f o r e g o i n g a n d

v a r i o u s o t h e r c h a n g e s , o m i s s i o n s a n d a d d i t i o n s may e made

t h e r e i n a n d t h e r e t o , W i t h o u t p a r t i n g f r o m t h e s p i r i t a n d s c o p e

o f h e p r e s e n t i n v e n t i o n . A c c o r d i n g l y , o t h e r embodiments a r e

W i t h i n t h e s c o p e o f t h e f o l l o W i n g c l a i m s .

What s c l a i m e d i s :

1 . A W i r l r e g i s t e r [ 1 0 0 0 ] f o r u s e i n a fumace With a Wind

b o x c o m p r i s i n g :

a ? r s t s i d e p l a t e [ 1 1 1 0 ] b e i n g g e n e r a l l y ? a t ;a s e c o n d s i d e p l a t e [ 1 1 2 0 ] b e i n g g e n e r a l l y ? a t ;a p l u r a l i t y o f s W i r l b l o c k s [ 1 1 5 0 ] h a v i n g a t l e a s t f o u r W a l l s

e n c l o s i n g a s p a c e , t h e s W i r l b l o c k s [ 1 1 5 0] s p a c e d a p a r tfrom e a c h o t h e r a n d c o n n e c t e d b e t W e e n t h e s i de p l a t e s

[ 1 1 1 0 , 1 1 2 0 ] s o a s t o c a u s e t h e s i d e p l a t e s [ 1 1 1 0 , 1 1 2 0 ]

t o b e ?xed e n e r a l l y p a r a l l e l t o e a c h o t h e r , a n d t o c r e a t e

a p l u r a l i t y o f a i r d u c t s [ 1 1 5 5 ] betWeen t h e s W i r l b l o c k s

[ 1 1 5 0 ] ;a p l u r a l i t y o f vane r o d s [ 1 1 6 0 ] e a c h h a v i n g a ? r s t end and

a second e n d , t h e ? r s t end of t h e vane r o d s [ 1 1 6 0 ]

e x t e n d i n g g e n e r a l l y p e r p e n d i c u l a r l y t h r o u g h t h e s e c o n d

s i d e p l a t e [ 1 1 2 0 ] ; a n d

a p l u r a l i t y of a n e s [ 1 1 3 0 ] each a t t a c h e d t o t h e ? r s t end of

e a c h v a n e r o d [ 1 1 6 0 ] and o s i t i o n e d W i t h i n t h e a i r d u c t s

[ 1 1 5 5 ] , such t h a t t h e vanes [ 1 1 3 0 ] a r e alloWed t o m o v e

betWeen a c l o s e d p o s i t i o n i n Which t h e v a n e s [ 1 1 3 0 ]

c l o s e t h e a i r d u c t s [ 1 1 5 5 ] and t l e a s t one open p o s i t i o n

i n Which t h e a i r d u c t s [ 1 1 5 5 ] a r e a t l e a s t p a r t i a l l y openW h en h e vane r o d s [ 1 1 6 0 ] a r e r o t a t e d .

2 . The W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 1 f u r t h e r c o m p r i s i n g :

a l i n k a g e a s s e m b l y [ 1 2 0 0 ] h a v i n g a p l u r a l i t y o f d r i v e l i n k s[ 1 2 0 1 ] , e a c h d r i v e l i n k [ 1 2 0 1 ] p i v o t a l l y c o n n e c t e d t o o n e

o f t h e v a n e r o d s [ 1 1 6 0 ] a t t h e i r s e c o n d e n d , t h e l i n k a g e

a s s e m b l y [ 1 2 0 0 ] a l s o h a v i n g a p l u r a l i t y o f t a n g e n t i a ll i n k s [ 1 2 0 3 ] , e a c h t a n g e n t i a l l i n k [ 1 2 0 3 ] p i v o t a l l y c o n

n e c t e d t o a t l e a s t one o f t h e d r i v e l i n k s [ 1 2 0 1 ] such h a t

m o t i o n o f h e l i n k a g e a s s e m b l y [ 1 2 0 0 ] c a u s e s r o t a t i o n o f

a l l t h e a t t a c h e d vane r o d s [ 1 1 6 0 ] ; and

a d r i v e s o u r c e c o u p l e d t o t h e l i n k a g e a s s e m b l y [ 1 2 0 0 ]

c a u s i n g m o t i o n o f h e l i n k a g e a s s e m b l y [ 1 2 0 0 ] a n d r o t at i o n o f a l l a t t a c h e d vane r o d s [ 1 1 6 0 ] .

3 . The s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 2 W h e r e i n :

t h e l i n k a g e a s s e m b l y [ 1 2 0 0 ] and d r i v e s o u r c e a r e a t t a c h e d

t o t h e Windbox r o n t p l a t e [ 1 2 5 0 ] .

4 . The s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 1 W h e r e i n t h e s W i r l

r e g i s t e r [ 1 0 0 0 ] p a s s e s t h r o u g h s a i d W i n d b o x o f s a i d f u m a c e ,

f u r t h e r c o m p r i s i n g :

a Windbox f r o n t p l a t e [ 1 2 5 0 ] h a v i n g a p l u r a l i t y o f h o l e s

e a c h a d a p t e d t o r e c e i v e a vane o d [ 1 1 6 0 ] f u n c t i o n i n g t o

s t a b i l i Z e t h e v a n e r o d s [ 1 1 6 0 ] W h i l e a l l o W i n g them t o

r o t a t e .

5 . The s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 4 W h e r e i n :

t h e v a n e r o d s [ 1 1 6 0 ] e x t e n d t h r o u g h t h e Windbox and t h e

W i n d b o x f r o n t p l a t e [ 1 2 5 0 ] t h a t i s p o s i t i o n e d o u t s i d e o f

t h e Windbox f o r p r o v i d i n g e a s y a c c e s s .

6 . A ethod o f p r o v i d i n g a more r e l i a b l e s W i r l r e g i s t e r

c o m p r i s i n g t h e s t e p s o f :

25

30

35

40

45

50

55

60

6 5

6

p r o v i d i n g a r i g i d a i r d u c t a s s e m b l y [ 1 1 0 0 ] h a v i n g a p l u r a li t y o f s W i r l b l o c k s [ 1 1 5 0] e a c h h a v i n g a t l e a s t f o u r W a l l s

e n c l o s i n g a s p a c e t h e s W i r l b l o c k s [ 1 1 5 0] s p a c e d a p a r t

f r o m e a c h o t h e r c r e a t i n g a p l u r a l i t y o f a n g l e d a i r d u c t s

[ 1 1 5 5 ] b e t W e e n t h e s W i r l b l o c k s [ 1 1 5 0 ] ;

p r o v i d i n g a p l u r a l i t y o f v a n e s [ 1 1 3 0 ] i n s i d e o f t h e a i r d u c t s

[ 1 1 5 5 ] a d a p t e d t o a d j u s t a r a t e o f i r ? o W i n g t h r o u g h t h e

a i r d u c t s [ 1 1 5 5 ] by s e l e c t i n g a p o s i t i o n f o r t h e v a n e s

[ 1 1 3 0 ] ;a t t a c h i n g a vane rod [ 1 1 6 0 ] t o each of h e v a n e s [ 1 1 3 0 ] t o

c o n t r o l t h e i r p o s i t i o n r e m o t e l y ; a n d

p r o v i d i n g a vane o n t r o l mechanism [ 1 6 0 0] a t t a c h e d t o t h e

vane r o d s [ 1 1 6 0 ] i n a n e a s i l y a c c e s s i b l e and c l e a n l o c a

t i o n f o r c o n t r o l l i n g t h e v a n e r o d s [ 1 1 6 0 ] a n d p o s i t i o n s o f

t h e v a n e s [ 1 1 3 0 ] .

7 . The method o f c l a i m 6 W h e r e i n t h e s t e p o f p r o v i d i n g a

r i g i d a i r d u c t a s s e m b l y [ 1 1 0 0 ] f u r t h e r c o m p r i s e s t h e s t e p s o f :

p r o v i d i n g a ? r s t s i d e p l a t e [ 1 1 1 0 ] h a v i n g a p e r i m e t e r ; a n d

a t t a c h i n g t h e p l u r a l i t y o f s W i r l b l o c k s [ 1 1 5 0 ] t o t h e ? r s ts i d e p l a t e [ 1 1 1 0 ] s p a c e d f r o m e a c h o t h e r a r o u n d t h e

p e r i m e t e r o f t h e s i d e p l a t e [ 1 1 1 0 ] t o c r e a t e a p l u r a l i t y o f

s p a c e s betWeen h e s W i r l b l o c k s a n g l e d W i t h r e s p e c t t o a

r a d i a l d i r e c t i o n from a c e n t e r o f t h e s i d e p l a t e [ 1 1 1 0 ] ,

a t t a c h i n g a s e c o n d s i d e p l a t e [ 1 1 2 0 ] t o t h e s W i r l b l o c k s

[ 1 1 5 0 ] s u c h t h a t t h e ? r s t s i d e p l a t e [ 1 1 1 0 ] a n d t h e s e c o n d

s i d e p l a t e [ 1 1 2 0 ] a r e s u b s t a n t i a l l y p a r a l l e l t o e a c h o t h e r ,a n d t h e s e c o n d s i d e p l a t e [ 1 1 2 0 ] c l o s e s t h e a n g l e d s p a c e s

c r e a t i n g t h e a n g l e d a i r d u c t s [ 1 1 5 5 ] .8 . The method o f c l a i m 6 Wherein h e vane o n t r o l mecha

nism [ 1 6 0 0 ] i s p o s i t i o n e d o ut s i d e o f a Windbox o n ? g u r e d f o r

p a s s i n g a s e c o n d a r y a i r t h e r e t h r o u g h .

9 . A e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] f o r r e c e i v i n g s e c o n d a r y

a i r from a Windbox o f a fumace and r o v i d i n g t h e s e c o n d a r y

a i r i n t o a s t r e a m o f a i r and p u l v e r i Z e d s o l i d f u e l p a s s i n g

t h r o u g h a f u e l t u b e [ 1 0 ] c o m p r i s i n g :

a r i g i d a i r d u c t a s s e m b l y c o m p r i s i n g :

a ? r s t s i d e p l a t e [ 1 1 1 0 ] ,

a s e c o n d s i d e p l a t e [ 1 1 2 0 ] ,a p l u r a l i t y o f s W i r l b l o c k s [ 1 1 5 0 ] h a v i n g a t l e a s t f o u r

W a l l s e n c l o s i n g a s p a c e , t h e s W i r l b l o c k s [ 1 1 50 ]

s p a c e d f r o m e a c h o t h e r a n d p o s i t i o n e d t o c r e a t e

a n g l e d a i r d u c t s [ 1 1 5 5 ] b e t W e e n t h e m , t h e s W i r lb l o c k s [ 1 1 50 ] c o n n e c t i n g t h e ? r s t s i d e p l a t e [ 1 1 1 0 ]

s u b s t a n t i a l l y p a r a l l e l t o t h e s e c o n d s i d e p l a t e [ 1 1 2 0 ] ,s u c h t h a t t h e ? r s t s i d e p l a t e [ 1 1 1 0 ] a n d t h e s e c o n d s i d e

p l a t e e n c l o s e d t h e p l u r a l i t y o f i r d u c t s [ 1 1 5 5 ] ;

a p l u r a l i t y o f v a n e s [ 1 1 3 0 ] W i t h i n t h e a i r d u c t s [ 1 1 5 5 ]

a d a p t e d t o s e l e c t an i r ? o W r a t e t h r o u g h t h e a i r d u c t s

[ 1 1 5 5 ] b a s e d upon h e i r p o s i t i o n ; a n d

a v a n e c o n t r o l mechanism [ 1 6 0 0 ] f o r a c c u r a t e l y c o n t r o l l i n g

t h e p o s i t i o n o f t h e v a n e s t h e r e b y d e ? n i n g t h e a i r ? o W r a t e

t h r o u g h t h e a i r d u c t s [ 1 1 5 5 ] .

1 0 . The e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] o f l a i m 9 W h e r e i n t h e

vane c o n t r o l mechanism [ 1 6 0 0 ] i s l o c a t e d o u t s i d e o f t h e

W i n d b o x .

1 1 . The e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] o f l a i m 9 W h e r e i n t h e

v a n e c o n t r o l mechanism [ 1 6 0 0] c o m p r i s e s :

a p l u r a l i t y of vane r o d s [ 1 1 6 0 ] each coupled t o a vane

[ 1 1 3 0 ] a n d t h e v a n e r o d s [ 1 1 6 0 ] a r e r e m o t e l y a c t u a t e d t o

a d j u s t t h e p o s i t i o n o f t h e v a n e s [ 1 1 3 0 ] .

1 2 . The e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 1 1 W h e r e i n

t h e v a n e c o n t r o l r o d s [ 1 1 6 0 ] a r e r e m o t e l y o p e r a t e d from

o u t s i d e o f t h e W i n d b o x .

1 3 . The e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 1 1 f u r t h e r

c o m p r i s i n g :a Windbox l a t e [ 1 2 5 0 ] a t t a c h e d t o a Windbox a l l [ 2 0 ] f o r

r e c e i v i n g a n d s t a b i l i Z i n g t h e v a n e r o d s [ 1 1 6 0 ] .



US 8 , 5 1 7 , 7 1 9 B2

7

1 4 . The e l i a b l e s w i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 9 W h e r e i n t h e

V a n e c o n t r o l mechanism [ 1 6 0 0 ] c o m p r i s e s :

a motor i n a gearbox [ 1 2 3 0 ] t h a t t o g e t h e r a c t u a t e t h e Vane

r o d s [ 1 1 6 0 ]

1 5 . The e l i a b l e s W i r l r e g i s t e r [ 1 0 0 0 ] o f c l a i m 9 W h e r e i n t h e 5

s W i r l b l o c k s [ 1 1 5 0 ] a r e p o s i t i o n e d t o have t l e a s t tWo b l o c k

W a l l s [ 1 1 5 1 , 1 1 5 3 ] a d j a c e n t t o e a c h o t h e r , W h e r e i n a t l e a s t o n e

b l o c k W a l l [ 1 1 5 1, 1 1 5 3 ] i s a n g l e d W i t h r e s p e c t t o a r a d i a l

d i r e c t i o n , t h e s W i r l b l o c k s [ 1 1 5 0] p o s i t i o n e d s u c h t h a t t h e a t

l e a s t tWo d j a c e n t b l o c k W a l l s [ 1 1 5 1 , 1 1 5 3 ] , t h e ? r s t s i d e p l a t e 1 0

[ 1 1 1 0 ] a n d t h e s e c o n d s i d e p l a t e [ 1 1 2 0 ] c r e a t e t h e a n g l e d a i r

d u c t [ 1 1 5 5 ] .

2013 alstom swirl block register

Documents