Valve gear for load change valves of four-stroke internal combustion engines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7412951
APP PUB NO 20070022990A1
SERIAL NO

11494203

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Valve gears for load-change valves of four-stroke internal combustion engines, in which the load-change valves are closed by spring force, engage a pivot lever moved by a cam for opening a load-change channel. The cam engages an intermediate element that it is additionally moved by the lifting curve of the cam during a different work cycle, and adjusts the pivot lever to open the load-change valve slightly during a different work cycle. The intermediate element is prismatically guided on an element that can pivot in the cylinder head and is adjustable in its position, and engages the cam and the pivot lever, so that the stroke movement of the cam for opening the load-change valve via the pivot lever can be adjusted.

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Patent Owner(s)

Patent OwnerAddress
IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR10587 BERLIN

International Classification(s)

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  • 2006 Application Filing Year
  • F01L Class
  • 448 Applications Filed
  • 236 Patents Issued To-Date
  • 52.68 % Issued To-Date

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Werler, Andreas Zwickau, DE 21 113
Wutzler, Jorg Zwickau, DE 6 18

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  • F01L Class
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  • 17 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3573012901 - 1011 - 2021 - 3031 - 4002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.55557.560

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