发明名称 |
VARIABLE VALVE ACTUATION APPARATUS, SYSTEM, AND METHOD |
摘要 |
A variable valve actuation system is disclosed, in one form a rocker is disclosed coupled with a valve stem at one end and a cam follower at the other end. The rocker is operable to pivot about a fixed axis. The cam follower is operable to be pivotally coupled with the rocker at one end of the cam follower. The cam follower includes a lower roller and an upper roller at its other end, each operable to engage cam lobes on separate cam shafts. In one form the cam follower includes a lower roller operable to follow a cam lobe on a lower cam shaft and an upper roller operable to follow a cam lobe on an upper cam shaft. The upper cam shaft and the lower cam shaft can have variable lobes. A spring can be used to bias the cam follower on the rocker. |
申请公布号 |
WO2010096432(A2) |
申请公布日期 |
2010.08.26 |
申请号 |
WO2010US24405 |
申请日期 |
2010.02.17 |
申请人 |
CUMMINS INC.;BARNES, DAVID, M.;CECIL, ADAM, C. |
发明人 |
BARNES, DAVID, M.;CECIL, ADAM, C. |
分类号 |
F01L13/00;F01L1/04;F01L1/18;F02D13/02 |
主分类号 |
F01L13/00 |
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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