Hydraulic lifter for internal combustion engines

Details Hydraulic lifter for internal combustion engines Hydraulic lifter for internal combustion engines

1984-02-08

1985-11-26

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9027, 123 9046, F01L 124

Patent

active

045548951

ABSTRACT:
A hydraulic lifter incorporated into a rocker arm of a valve train in an internal combustion engine includes a cylinder formed in the rocker arm, a plunger arranged slidably in the cylinder, a valve seat member dividing an inside portion of the cylinder into a pressure chamber and a reservoir chamber for working fluid, a check valve allowing the working fluid to flow from the reservoir chamber into the pressure chamber, a spring positioned within the pressure chamber to bias the plunger, and a passage for supplying the working fluid to the reservoir chamber.

REFERENCES:
patent: 3314404 (1967-04-01), Thompson
patent: 3401677 (1968-09-01), Ronzi
patent: 3897761 (1975-08-01), Fleischer et al.
patent: 4475497 (1984-10-01), Honda et al.

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