Tappet sleeve lubrication

Details Tappet sleeve lubrication Tappet sleeve lubrication

1987-07-13

1988-05-24

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9051, 123 9055, F01M 106

Patent

active

047458887

ABSTRACT:
Leakage of gallery oil delivered to iron sleeves or the like cast into an aluminum tappet carrier through the opening of interfaces between the sleeves and the aluminum body is minimized by forming feed passages from the gallery wholly in aluminum material extending through larger openings in the sleeves so as to deliver the oil directly to the tappet bores without intersecting the aluminum-iron interface.

REFERENCES:
patent: 3880127 (1975-04-01), Abell, Jr.
patent: 3967602 (1976-07-01), Brown

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