Light weight cam follower

Details Light weight cam follower Light weight cam follower

1995-10-06

1996-10-22

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 9036, 123 9042, 123 905, 74569, F01L 116, F01L 118, F01M 910

Patent

active

055666523

ABSTRACT:
A roller cam follower for an internal combustion engine. The cam follower includes a roller assembly consisting of an insert member formed of a conformable plastic material and an axleless roller received in a cavity formed in the insert, the material of the insert closely conforming to the contour of the roller. Various adaptations of the inventive cam follower structure are shown; including a light weight mechanical valve lifter, a hydraulic lash adjuster, a rocker arm and a mechanical direct acting tappet; all of which include means for conducting oil from the exterior of the cam follower to the roller cavity.

REFERENCES:
patent: 1565223 (1925-12-01), Church
patent: 4204814 (1980-05-01), Matzen
patent: 4335685 (1982-06-01), Clouse
patent: 4589383 (1986-05-01), Showalter
patent: 4909197 (1990-03-01), Perr
patent: 5010856 (1991-04-01), Ojala
patent: 5186130 (1993-02-01), Melchior
patent: 5307769 (1994-05-01), Meagher et al.

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