Hydraulic valve lifter

Details Hydraulic valve lifter Hydraulic valve lifter

1984-08-24

1986-11-25

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9055, F01L 124

Patent

active

046242244

ABSTRACT:
A hydraulic valve lifter is mounted in a rocker arm of a valve train assembly of internal combustion engines. The lifter includes a cylinder formed in the rocker arm, a plunger reciprocably mounted in the cylinder, a seat member securely pressed in the cylinder above the plunger and provided with an outer circumferential portion extending in a direction of the plunger, a stopper surface formed at an end surface of the outer circumferential portion for restricting an axial movement of the plunger in a direction of the seat member, and a relief recessed area formed above the stopper surface for finishing machining process of the cylinder.

REFERENCES:
patent: 4192263 (1980-03-01), Kitagawa et al.
patent: 4373477 (1983-02-01), Buente et al.

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