Hydraulic lash adjuster

Details Hydraulic lash adjuster Hydraulic lash adjuster

1981-03-04

1984-03-27

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9046, 123 9043, F01L 124

Patent

active

044387393

ABSTRACT:
An hydraulic lash adjuster of the type used in the valve trains of internal combustion engines in order to take up the lash for operating clearance includes a cylindrical body member, a plunger member having a reservoir chamber therein being slidably mounted in the body member to define a pressure chamber therebetween, passage means between the reservoir chamber and the pressure chamber controlled by a one-way valve and a floating member disposed on the surface of the hydraulic fluid contained in said reservoir chamber to prevent air from being absorbed into the hydraulic fluid during the operation of the engine.

REFERENCES:
patent: 2787376 (1957-04-01), Coulson
patent: 3805753 (1974-04-01), Bergmann et al.
patent: 3877445 (1975-04-01), Barnes
patent: 4296778 (1981-10-01), Anderson
patent: 4338894 (1982-07-01), Kodama

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