Rocker arm with integral ball pivot socket

Details Rocker arm with integral ball pivot socket Rocker arm with integral ball pivot socket

1990-08-30

1991-08-13

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9039, F01L 118

Patent

active

050387260

ABSTRACT:
A rocker arm for an internal combustion engine is disclosed. The rocker arm has a cold-formed, one-piece metal body with a narrow width and a substantial depth. The body has a pad at one end for engaging an end of a valve stem and has a socket at the other end for engaging the upper end of a push rod. An intermediate portion of the body has a large opening of generally trapezoidal configuration with a lower edge longer than an upper edge. A middle portion of the lower edge has a structurally-integral, outwardly-flared portion defining an upwardly-facing socket for engaging a pivot ball about which the rocker arm can pivot during operation.

REFERENCES:
patent: 1699657 (1929-01-01), Fagan
patent: 2905161 (1959-09-01), Latham
patent: 3418985 (1968-12-01), Hirose
patent: 3855981 (1974-12-01), Loon
patent: 4430783 (1984-02-01), Wherry
patent: 4724803 (1988-02-01), Williams
patent: 4763616 (1988-08-01), Grinsteiner
patent: 4856466 (1989-08-01), Ting et al.
patent: 4934323 (1990-06-01), Grinsteiner

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