Roller rocker arm

Details Roller rocker arm Roller rocker arm

1987-06-12

1988-03-01

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 905, 123 9039, F01L 118

Patent

active

047278323

ABSTRACT:
Disclosed herein is a roller rocker arm comprising a rocker arm body having a rocking center hole through which a rocker shaft is inserted and adapted to be rockably supported to the rocker shaft; a pair of forked projections projecting from the rocker arm body in a direction perpendicular to a tangent of a circle about a rocking center axis of the rocker arm body; a pair of pin holes formed through the pair of forked projections; a hollow roller pin inserted into the pair of pin holes and fixed between the pair of forked projections; a cam follower roller through which the roller pin is inserted; a plurality of needle rollers interposed between the cam follower roller and the roller pin for rotatably supporting the cam follower roller to the roller pin in such a manner as to extend in parallel one another in a longitudinal direction of the roller pin; a pair of disk-like spacers rotatably supported to the roller pin and interposed between ends of the needle rollers and the projections; and an adjuster mounted in the rocker arm body and adapted to abut against a valve.

REFERENCES:
patent: 2014036 (1935-09-01), Brush
patent: 2935878 (1960-05-01), Wirsching
patent: 3466073 (1969-09-01), Pohle
patent: 4182290 (1980-01-01), Pohle
patent: 4628874 (1986-12-01), Barlow
patent: 4674453 (1987-06-01), Dove, Jr.
patent: 4682575 (1987-07-01), Simko

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