Rocker arm for operating two valves

Details Rocker arm for operating two valves Rocker arm for operating two valves

1988-11-30

1990-04-03

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9041, 123 9044, F01L 118

Patent

active

049131044

ABSTRACT:
A rocker arm of the cam-follower type capable of simultaneously operating two valves of a cylinder of an internal combustion engine is disclosed. In a preferred form, the rocker arm has a one-piece, cold-formed body which is of inverted U-shaped cross section throughout much of its length. The rocker arm body is of generally Y-shaped configuration as viewed from above. The extremities of the arms of the Y-shaped body are shaped to engage ends of valve stems and the extremity of the leg of the Y-shaped body has an axle on which a cam-contacting roller is rotatably mounted. An intermediate portion of the rocker arm has an upwardly-facing recess to receive an end of a pivot post.

REFERENCES:
patent: 3139870 (1964-07-01), Sampietro
patent: 3142357 (1964-07-01), Thompson
patent: 4624223 (1986-11-01), Wherry et al.
patent: 4628874 (1986-12-01), Barlow
patent: 4682575 (1987-07-01), Simko
patent: 4697473 (1987-10-01), Patel
patent: 4724803 (1988-02-01), Williams
patent: 4791893 (1988-12-01), Muranaka et al.
patent: 4796483 (1989-01-01), Patel et al.

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