Hydraulic lash adjuster

Details Hydraulic lash adjuster Hydraulic lash adjuster

1988-03-11

1989-03-28

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9055, F01L 124

Patent

active

048154245

ABSTRACT:
A hydraulic lash adjuster which is mounted in a rocker arm of an internal combustion engine. The plunger of the lash adjuster has a socket formed therein which receives a cylindrical member having a ball end in contact with the socket and a flat surface engageable with a poppet valve of the engine. The ball and socket connection is lubricated by engine oil flowing from the leakdown clearance space between the plunger and the lash adjuster body through a passage which intersects the socket surface. The plunger and the cylindrical member are retained within the body by a single, dish-shaped member which is positioned over the body.

REFERENCES:
patent: 4502428 (1985-03-01), Paar
patent: 4570582 (1986-02-01), Speil
patent: 4708103 (1987-11-01), Speil
patent: 4716867 (1988-01-01), Speil
patent: 4724822 (1988-02-01), Bonvallet
patent: 4729350 (1988-03-01), Speil

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