Method for the manufacture of a piston head having a cooling cha

Details Method for the manufacture of a piston head having a cooling cha Method for the manufacture of a piston head having a cooling cha

1991-10-17

1993-05-04

Denion, Thomas E.

Expansible chamber devices

Piston

With enclosed insulating space in piston part

92208, 92222, 92231, 1231936, 29888045, 29888044, F01B 1510, B23P 1510, F02F 700

Patent

active

052071472

ABSTRACT:
A method for the manufacture of a piston head having a cooling chamber is disclosed. The two portions composing the piston head are made separately; the underside of the upper portion is provided with a circumferential peripheral groove; notches are provided on both sides of the open end of the circumferential peripheral groove; a circumferential annular plate is placed on the notches thereby closing the circumferential peripheral groove; the two portions making up the head are joined to each other by welding and cause the inner edge of the annular plate to be retained in the piston head and become an integral part thereof.

REFERENCES:
patent: 1624791 (1927-04-01), Kraxberger
patent: 2244008 (1941-06-01), Hazen et al.
patent: 2840427 (1958-06-01), Dolza
patent: 3190273 (1965-06-01), Bachle et al.
patent: 4532686 (1985-08-01), Bercher
patent: 5065508 (1991-11-01), Lorento et al.

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