Cap retainer for hydraulic lash adjuster

Details Cap retainer for hydraulic lash adjuster Cap retainer for hydraulic lash adjuster

1985-01-02

1988-12-06

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9046, F01L 124

Patent

active

047889470

ABSTRACT:
A hydraulic lash adjuster (42) for the valve gear (14) of an internal combustion engine (12) operates from oil received under pressure from a gallery (58) provided in the engine lubricant supply system to compensate for lash in the valve train. The body (60) of the lash adjuster has a moveable plunger assembly (66) provided therein which, prior to installation in the valve gear, is retained in assembly by a retainer (120) formed of an elastic material such as nylon 6/6 including a rim portion (126) embracingly engaging the outer peripheral surface (144) of the body with equally distributed, radially directed clamping forces. The retainer also includes an end wall (122) defining a through bore (124) concentric with a shank portion (80) in the plunger assesmbly. Upon assembly, the retainer is momentarily elastically deformed to enable a bulbous end portion (74) of the plunger assembly to pass therethrough.

REFERENCES:
patent: 4098240 (1978-07-01), Abell, Jr.
patent: 4184464 (1980-01-01), Svihlik
patent: 4338894 (1982-07-01), Kodama
patent: 4387675 (1983-06-01), Hori et al.

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