Hydraulic valve lifter for internal combustion engine

Details Hydraulic valve lifter for internal combustion engine Hydraulic valve lifter for internal combustion engine

1989-05-27

1990-08-07

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9052, F01L 114, F01L 124

Patent

active

049458710

ABSTRACT:
A valve lifter employs a plunger head to be coupled with a seat plunger. The plunger head is provided an upper end surface mating with a surface of an upper end wall of a lifter body so that the upper surface may establish face contact with the mating surface of the upper end wall. The plunger head is so designed as to define a communication path for establishing fluid communication between a fluid supply path to a fluid reservoir defined in the seat plunger and another communication path for establishing fluid communication between the fluid supply path to a drainage formed through the upper end wall of the lifter body.

REFERENCES:
patent: 4688525 (1987-08-01), Nakamura
patent: 4756282 (1988-07-01), Kunz et al.
patent: 4793295 (1988-12-01), Downing
patent: 4802448 (1989-02-01), Ableitner

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