Light alloy piston for diesel engines

Details Light alloy piston for diesel engines Light alloy piston for diesel engines

1976-02-13

1979-02-13

Myhre, Charles J.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

123 30C, 123 32AA, 92213, 92223, F02F 312

Patent

active

041389840

ABSTRACT:
A light alloy piston for diesel engines includes a piston head coated with a hard annodized layer having a combustion chamber recess and/or a fuel-guiding channel provided adjacent to the edge of the combustion chamber recess and/or valve pockets. The piston head is free of a hard anodized layer in those regions which are highly stressed by gas and mass forces. Preferably those regions of the piston head adjacent to edge portions of the combustion chamber recess lying in the direction of the piston pin are free of a hard anodized layer.

REFERENCES:
patent: 1426138 (1922-08-01), Allyne
patent: 1869041 (1932-07-01), Bengston
patent: 2420474 (1947-05-01), Graham
patent: 2692852 (1954-10-01), Burrows
patent: 2762724 (1956-09-01), Brennan
patent: 3149409 (1964-09-01), Maruhn
patent: 3221722 (1965-12-01), Bachle
patent: 3251349 (1966-05-01), Isley
patent: 3681149 (1972-08-01), Ito
patent: 3807014 (1974-04-01), Hummel
patent: 3986897 (1976-10-01), McMillan

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