Method of making an ultra light engine valve

Details Method of making an ultra light engine valve Method of making an ultra light engine valve

1996-06-19

1997-04-15

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988845, B23P 1500

Patent

active

056197969

ABSTRACT:
An ultra light popper valve for an internal combustion engine. The valve is formed by cold forming a blank into an elongated cup having an extremely thin wall and a flared open end onto which a cap is welded, the bosom end of the cup which defines the tip end of the valve having a wall section which is substantially of the thickness of the original blank. In accordance with one aspect of the invention, a keeper groove is formed adjacent the tip end as part of the cold forming process.

REFERENCES:
patent: 2070589 (1937-02-01), Giacchino
patent: 2411734 (1946-11-01), Kerwin et al.
patent: 2627259 (1953-02-01), Wood et al.
patent: 3378904 (1968-04-01), Prasse et al.
patent: 3710773 (1973-01-01), Piech et al.
patent: 4263799 (1981-04-01), Motizuki
patent: 4597367 (1986-07-01), Hayashi
patent: 5054195 (1991-10-01), Keck et al.

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