Hydraulic play compensation element

Details Hydraulic play compensation element Hydraulic play compensation element

1989-04-14

1989-10-31

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9055, D01L 124, F15B 1508

Patent

active

048769940

ABSTRACT:
A hydraulic play compensation element for the drive of a valve of an internal combustion engine with a housing in which a hollow piston is mounted such as to be acted upon, via a non-return valve, by oil pressure, the hollow piston being surrounded by an oil reservoir which communicates via an oil passage with the inner space of the hollow piston and in which a sleeve is inserted which with a part of its wall forms an oil transfer channel between an oil inlet in the housing and an upper region of the reservoir.

REFERENCES:
patent: 2688319 (1954-09-01), Humphreys
patent: 4437439 (1984-03-01), Speil
patent: 4584976 (1986-04-01), Hillebrand
patent: 4607599 (1986-08-01), Buente et al.
patent: 4747376 (1988-05-01), Speil et al.
patent: 4771741 (1988-09-01), Leer

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