Light-metal reciprocating piston

Details Light-metal reciprocating piston Light-metal reciprocating piston

1981-08-31

1988-03-15

Jordan, Charles T.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92228, 92230, 92238, F16J 104, F02F 302

Patent

active

047305495

ABSTRACT:
A piston made of cast aluminum base alloy is provided with gudgeon pin bosses which are connected to the piston skirt by means of a frusto-conical strut which has recesses in the skirt and are specially dimensioned to leave large unsupported skirt areas to minimize risk of seizure in an engine cylinder; in particular the distance between the outer surfaces of the bosses is from 0.6 to 0.8 of the outer diameter of the piston and the distance between the inner surfaces of the bosses is 25 to 35 percent of the outer diameter of the piston, and the cone angle of the struts is from 60.degree. to 110.degree..

REFERENCES:
patent: 1675174 (1928-06-01), Hartog
patent: 2238087 (1941-04-01), Bowser et al.
patent: 2513437 (1950-07-01), Venner et al.
patent: 2801890 (1957-08-01), Nitsch
patent: 3175475 (1965-03-01), Kuhm
patent: 3434398 (1969-03-01), Gessinger et al.
patent: 3908521 (1975-09-01), Cockcroft

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