Pedestal-mounted rocker arm with bushing

Details Pedestal-mounted rocker arm with bushing Pedestal-mounted rocker arm with bushing

1991-10-21

1992-06-23

Argenbright, Tony M.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9041, 74519, 74559, F01L 118

Patent

active

051233843

ABSTRACT:
A rocker arm has a cold-formed, one-piece metal body of generally U-shaped cross section throughout most of its length. The body has a bottom wall and two generally parallel side walls which extend upwardly therefrom and are structurally integral therewith. The rocker arm body has a recess at one end to engage an end of a push rod and a surface at the other end to engage an end of a valve stem. The side walls of the body have aligned circular openings therein through which a cylindrial bushing extends and is affixed to the side walls by brazing or the like. For a pedestal mount, the bushing has an elongate opening facing downwardly to receive a pedestal and has a large upper opening for clearance around a portion of the pedestal. Small oil reservoirs are formed between the bottom wall of the rocker arm body and edge portions of the bushing adjacent the large upper opening.

REFERENCES:
patent: 2905161 (1959-09-01), Latham
patent: 3150648 (1964-09-01), Gropp
patent: 4829647 (1989-05-01), Anderson et al.
patent: 4848180 (1989-07-01), Mills
patent: 4944257 (1990-07-01), Mills
patent: 5010857 (1991-04-01), Hempelmann et al.
patent: 5060606 (1991-10-01), Hubbard
patent: 5063889 (1991-11-01), Pryba et al.
patent: 5074261 (1991-12-01), Hamburg et al.

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