Rocker arm of the cam-follower type for operating two valves

Details Rocker arm of the cam-follower type for operating two valves Rocker arm of the cam-follower type for operating two valves

1992-11-05

1993-11-09

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 904, 74519, 74559, F01L 118

Patent

active

052593460

ABSTRACT:
A rocker arm of the cam-follower type simultaneously operates two valves of a cylinder of an internal combustion engine. The rocker arm includes an intermediate portion and two end portions. The intermediate portion has upwardly extending side walls and end walls forming a large generally rectangular opening at the top edges thereof. The side walls have aligned holes carrying an axle on which is rotatably mounted a roller which contacts an overhead cam. One end portion of the rocker arm has a downwardly-facing recess to engage an upper end of a lifter post. The other end portion of the rocker arm has a long, narrow web with downwardly-facing pads near the ends thereof and in predetermined, spaced relationship. The pads engage upper ends of two valve stems for simultaneously operating valves to which the stems are connected.

REFERENCES:
patent: 4697473 (1987-10-01), Patel
patent: 4825717 (1989-05-01), Mills
patent: 4825822 (1989-05-01), Muranaka et al.
patent: 4913104 (1990-04-01), Mills
patent: 4979475 (1990-12-01), Mills
patent: 4995281 (1991-02-01), Allor et al.
patent: 5016582 (1991-05-01), Mills
patent: 5038732 (1991-08-01), Matayoshi et al.
patent: 5048475 (1991-09-01), Mills

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