发明名称 |
IMPROVEMENTS IN A VARIABLE VALVE TIMING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE |
摘要 |
The invention relates to improvements in variable valve timing for an internal combustion engine. Specifically, the end design of a valve lifter or valve stem that provides a fine contact point with a variable profile cam that can enable its movement across the cam in order to provide a greater range of valve timing. In addition, the system provides a camshaft and camshaft journal system which allows for axial movement of a cam shaft on the basis of engine rpm and which allows for advancing or retarding a camshaft system on the basis of engine rpm.
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申请公布号 |
CA2257437(A1) |
申请公布日期 |
2000.07.12 |
申请号 |
CA19992257437 |
申请日期 |
1999.01.12 |
申请人 |
VOGHELL, MARK;POMERLEAU, DANIEL G. |
发明人 |
VOGHELL, MARK;POMERLEAU, DANIEL G. |
分类号 |
F01L1/14;F01L1/46;F01L13/00;F02M39/00;(IPC1-7):F01L1/047 |
主分类号 |
F01L1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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