Invention Grant
US07334550B2 Valve train and cam lobe 失效
阀门和凸轮叶

  • Patent Title: Valve train and cam lobe
  • Patent Title (中): 阀门和凸轮叶
  • Application No.: US10545679
    Application Date: 2004-02-17
  • Publication No.: US07334550B2
    Publication Date: 2008-02-26
  • Inventor: Daniel H. JeselWalter R. Donovan
  • Applicant: Daniel H. JeselWalter R. Donovan
  • Applicant Address: US NJ Lakewood
  • Assignee: Jesel, Inc.
  • Current Assignee: Jesel, Inc.
  • Current Assignee Address: US NJ Lakewood
  • Agent Timothy J. Klima
  • International Application: PCT/US2004/004521 WO 20040217
  • International Announcement: WO2004/074644 WO 20040902
  • Main IPC: F01L1/04
  • IPC: F01L1/04
Valve train and cam lobe
Abstract:
A camshaft for an internal combustion engine includes a cam lobe for actuating a valve. The cam lobe has an opening ramp profile that acts to loft the valve gear away from contact with the cam lobe to a maximum lift of the valve, with the valve gear returning to contact with a closing ramp of the cam lobe sufficiently in advance of a minimum cam lobe closing ramp height so as to dissipate enough closing energy of the valve to minimize valve bounce after the valve contacts a corresponding valve seat.
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