Method for producing a rocker arm for use in an internal combust

Details Method for producing a rocker arm for use in an internal combust Method for producing a rocker arm for use in an internal combust

1987-07-09

1990-09-11

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

295276, 164 98, 164120, B21K 124

Patent

active

049551213

ABSTRACT:
A method for casting a rocker arm made of light alloy for use in an overhead cam shaft type valve operating mechanism of an internal combustion engine, which rocker arm includes a thick-walled bearing section to be fitted on a rocker arm shaft and is integrally provided with a wear-resistive piece having a protrusion on its rear surface and adapted to abut a cam. After molten metal has been injected under pressure into a metallic mold for the rocker arm, a secondary pressurizing force directed in the direction of an imaginary center axis of a rocker arm shaft is exerted by means of a pressurizing rod. In the metallic mold for the rocker arm, a sprue is provided close to the position where the wear-resistive piece is disposed with respect to the position where the bearing section is formed, and the direction of the sprue is directed towards the position where the wear-resistive place is disposed.

REFERENCES:
patent: 547096 (1895-10-01), Taylor
patent: 3106002 (1963-10-01), Bauer
patent: 3204304 (1965-09-01), Kostenko
patent: 3600238 (1971-08-01), Ravenel
patent: 4121335 (1978-10-01), Berman et al.
patent: 4132196 (1979-01-01), Wherry
patent: 4422229 (1983-12-01), Sadler et al.
patent: 4446907 (1984-05-01), Suzuki et al.
patent: 4451974 (1984-06-01), Gellert
patent: 4497359 (1985-02-01), Suzuki et al.
patent: 4558505 (1985-12-01), Moore
patent: 4624223 (1986-11-01), Wherry et al.
patent: 4632074 (1986-12-01), Takahashi et al.
patent: 4674453 (1987-06-01), Dove, Jr.
patent: 4779665 (1988-10-01), Ouimet
patent: 4779666 (1988-10-01), Ruhlandt et al.

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