variable valve timing - technology and patent landscape report - key players, innovators and...

8/3/2019 Variable Valve Timing - Technology and Patent Landscape Report - Key Players, Innovators and Industry Analysis

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Variable Valve TimingTechnology in automobilesKnowledge ServicesKnowledge Services

[email protected] 1Variable Valve Timing


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Samir Raiyani

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Variable Valve [email protected]


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Variable Valve Timing

Introduction

IP search and Analysis for US, IPC , ECLA , DEKLAClasses

Taxonomy - Class based and Technology based taxonomy

Top Cited Patents

Key Findings

MajorPlayers

IPActivity

Geographical Activity

MajorPlayer Analysis

Statistical Analysis Citation statistics

Technology citation statistics

Assignee citation statistics

Contents

3Variable Valve [email protected]


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Introduction

Valve timing plays an important role in engine performance. Valves

generally control the amount of charge or intake air into the engine cylinder.

In conventional engines, valves open or close in the correct amount and for

correct duration at correct time only for a particular speed. Speeds other

than above mentioned speed; timing, duration and lift are not optimized.

In a valve timing technology equipped engine, valve opening or closing

timing, duration and lift are optimized for either inlet or both inlet and outletvalves at all engine speeds or according to engine requirements.

Optimizing valve opening or closing timings in an engine improves engine

breathing thereby improving engine performance and reducing fuel

consumption. Also improves engine torque over wide range of speeds,

reduces pumping losses, and also effects various engine operating

parameters. This technology not only does improve engine performance but also

reduces harmful emissions facilitating internal exhaust gas recirculation.

This is a major advantage when the present emission norms are taken into

consideration.



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VVT Taxonomy

5

A detailed

taxonomy is

presented coveringcomponents of

VVT, functionality,

mode of actuation,

applications, are

among others

To see the detailed VVT Taxonomy, mailto: [email protected]



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Classification

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Different classes related to variable valve timing are identified

These classes are used in the search strategy

To see the detailed classification, mailto: [email protected]



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S. No. Patent/Public ation No.PublicationDate

(mm/dd/yyyy)As s ignee/ Appli cant Ti tl e

1 US6278211 0 8/ 02 /01 S we oE dw in B rus hl es s do ub ly -fe di ndu cti on ma ch in es e mp lo yi ng d ua l c age r ot ors

2 US6954004 10/11/ 05 Spellman Hi gh Vol tage El ec tron Doubl y fed induc tion mac hi ne

3 US7411309 0 8/ 12 /0 8 X an tr ex T ec hn ol og y Control systemfordoubly fedinductiongenerator

4 US7485980 02/03/09 H itac hi Power converter for doubly-fed pow er generator sys tem

5 US7800243 0 9/ 21 / 10 V es ta s W i nd S ys te ms V ar ia bl e s pe ed w in d tu rb i ne w i th d ou bl y- fe d i nd uc ti o ng en er at or c o m pe ns a te d fo r va ry in g r ot or s p ee d

6 US7830127 11/09/ 10 W ind to Power Sys tem Doubl y-c ontrol led as ync hronous g enerator

Control Patents

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Highly relevant patents are used for extracting keywords and ensuring the

quality of the search query

To see the detailed table, mailto: [email protected]



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Search Concepts

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Concepts used to search patent literature




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Keyword Search

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Database: MICROPATENT

Timeline: 01/01/1991 to 13/09/2011Patent Coverage: US EP WO JP DE GB FR




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Taxonomy

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A detailed class based taxonomy is also prepared and is furnished below.

To see the detailed interactive taxonomy, mailto: [email protected]



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Dolcera Dashboard

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Dolcera dashboard is a web 2.0 technology. It enables dynamic

presentation of patent data.



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Insights: Major Players

Toyota, Schaefflerand Hitachi are the amongst the major players in variable

valve timing technology.



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Insights:Key Patents

Key patents in the field are held by General Motors, Nissan and Hitachi.

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Insights: Year wise IP activity

Year wise IP activity based on Priority years



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Insights: Year wise IP activity

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Year wise IP activity based on publication years



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Insights: Geographical Distribution

Geographical distribution of patents



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Insights: Others

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By taking forward citations of all the patents into account calculated average citation

frequency of patents. Similar analysis is done to the patents of top10 classes and top 10 assignees.



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Insight: Others



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Insight: Others

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The average citation frequency of the patents pertaining to this technology is

found to be 4.123

Though Toyota has a major share of 13.5% patents to its name as its average

citation frequency is well below average citation frequency.

From the assignee citations graph it is clear that Ford ,Nissan and Aisin AW

have good quality patents as their average citation frequency is above average

citation frequency of all patents.

Similarly from technology citation graph classes F01L0001344A1 (changing

valve timing with out altering lift or duration using hydraulic lifters),

F01L000126D (simultaneous multiple valve operation),F01L000904 (electricalactuation of valves) have good quality patents, as their average citation

frequency is more than the average citation frequency of all relevant patents.



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Like this presentation?

Buy the customized report from Dolcera

Patent Analytics Services Market Research Services Purchase Patent Dashboard

Patent Landscape Services Dolcera Processes Industry FocusPatent Search Services Patent Alerting Services Dolcera Tools

20

This is only a sample report with brief analysis. Purchase the complete

report here. Price: $999

Dolcera can provide a comprehensive report customized to your needs

Samir Raiyani

Email:[email protected]

Phone: +1-650-425-6772Fax: +1-866-690-7517


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