Piston for internal combustion engine

Details Piston for internal combustion engine Piston for internal combustion engine

1985-09-30

1988-07-12

Look, Edward K.

Expansible chamber devices

Piston

Open-ended hollow skirt type

123193P, F16J 104

Patent

active

047562412

ABSTRACT:
A piston for an internal combustion engine in which the skirt portion of the piston is slightly oval rather than cylindrical and the size of the oval is varied along the skirt to produce contact surfaces of a particular shape engaging the cylinder. Specifically, the smallest diameter of the oval continuously increases from the piston rings downwardly and the largest diameter increases for a portion thereof. The contact surface shape has sloping sides to enhance the flow of lubricating oil away from the rings.

REFERENCES:
patent: 2046789 (1936-07-01), Norton
patent: 2149862 (1939-03-01), Nelson
patent: 2217542 (1940-10-01), Flammang et al.
patent: 2262132 (1941-11-01), Berry
patent: 2309555 (1943-01-01), Venner et al.
patent: 2497380 (1950-02-01), Venner et al.
patent: 2513814 (1950-07-01), Moore

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