Hydraulic valve lifter

Details Hydraulic valve lifter Hydraulic valve lifter

1990-07-24

1991-04-09

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9055, 123 9056, F01M 910, F01L 124

Patent

active

050055410

ABSTRACT:
A hydraulic valve lifter for use in an internal combustion engine, comprises an inverted cup-like body, an inverted cup-like plunger housed within the body, a high pressure chamber defined between the body and the plunger, and an oil passage through which an oil is fed to the high pressure chamber. At least one oil discharge hole is defined in the plunger and extends from the oil passage to open to a valve stem so as to lubricate between the valve stem and a valve guide.

REFERENCES:
patent: 3704696 (1972-12-01), Abell, Jr.
patent: 4279226 (1981-07-01), Lampredi et al.
patent: 4373477 (1983-02-01), Buente et al.
patent: 4424774 (1984-01-01), Ferrero
patent: 4463713 (1984-08-01), Barale
patent: 4530320 (1985-07-01), Ferrero
patent: 4640238 (1987-02-01), Camosso et al.
patent: 4662324 (1987-05-01), Titolo
patent: 4745888 (1988-05-01), Kapp

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