Invention Grant
- Patent Title: Direct acting hydraulic valve lifter
- Patent Title (中): 直动式液压阀门
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Application No.: US610254Application Date: 1990-11-08
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Publication No.: US5119774APublication Date: 1992-06-09
- Inventor: John J. Krieg , Lucille A. E. Gotham , Wayne S. Harris
- Applicant: John J. Krieg , Lucille A. E. Gotham , Wayne S. Harris
- Applicant Address: MI Detroit
- Assignee: General Motors Corporation
- Current Assignee: General Motors Corporation
- Current Assignee Address: MI Detroit
- Main IPC: F01L1/24
- IPC: F01L1/24 ; F01L1/25
Abstract:
An improved direct acting hydraulic valve lifter (DAHVL) has features including reduced dead oil storage with lower mass and faster filling, improved air venting, internal oil recirculation and targeted oil supply that combine to reduce the presence of air in the lifter. Foam filling and baffle reconfiguration are included among means for reducing stored oil volume which can also improve the follower cylinder support. Means for venting along the piston and cylinder of the lifter are shown. The various features combine to limit air intake and to more quickly expel air which does enter the lifter.
Public/Granted literature
- US4644229A Power supply for lighting incandescent lamp wth high-brightness Public/Granted day:1987-02-17
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