Rocker arm with lubrication provisions

Details Rocker arm with lubrication provisions Rocker arm with lubrication provisions

1990-08-24

1991-11-12

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9041, 123 9033, F01L 118

Patent

active

050638890

ABSTRACT:
A cold-formed rocker arm with unique lubrication provisions is disclosed. The rocker arm includes a one-piece metal body of generally inverted U-shaped cross section having a top wall and two side walls. One end of the body has a recess to engage an end of a push rod and the other end has a large, upwardly-facing recess to retain oil so as to provide lubrication substantially immediately when the engine is started. The bottom surface of the reservoir forms a pad to engage an end of a valve stem. A mounting bolt of the rocker arm has a splash ring on the head thereof to disperse oil when intercepting a stream thereof.

REFERENCES:
patent: 2811959 (1957-11-01), Etchells
patent: 2905161 (1959-09-01), Latham
patent: 3082755 (1963-03-01), Gropp
patent: 3289657 (1966-12-01), Winter, Jr.
patent: 4614171 (1986-09-01), Malhotra
patent: 4624223 (1986-11-01), Wherry et al.
patent: 4697473 (1987-10-01), Patel
patent: 4784095 (1988-11-01), Golding et al.
patent: 4872429 (1989-10-01), Anderson et al.
patent: 4944257 (1990-07-01), Mills

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