chap10
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Chapter10
TRANSCRIPT
-
Statio
nary
Rotatin
g surfa
ce
(steel)
Sim
plest d
esign. (L
abyrin
thmateria
ls: a
luminum, b
ronze,
babbitt o
r steel)
Low
pressure
High
pressure
Leakage
path
Statio
nary
Rotatin
g surfa
ce
(steel)
Low
pressure
High
pressure
Leakage
path
(a)
More diffic
ult to
manufacture
but p
roduces a tig
hter s
eal.
(Same m
ateria
l as in
a.)
(b)
Rotatin
g la
byrin
th ty
pe,
before operatio
n. (S
leeve
materia
l: babbitt, a
luminum,
nonmetallic
or o
ther
soft m
ateria
ls)
(c)
Rotatin
g la
byrin
th, a
fter
operatio
n. R
adial a
nd axial
movement o
f rotor c
uts
grooves in
sleeve m
ateria
l tosim
ulate staggered ty
pe
shown in
b.
(d)
Rotatin
g surfa
ce
(steel)
Low
pressure
High
pressure
Statio
nary sleeve
Rotatin
gsurfa
ce
Low
pressure
High
pressure
Leakage
path
Statio
nary sleeve
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