Piston assembly

Details Piston assembly Piston assembly

1976-12-27

1978-02-14

Cohen, Irwin C.

Expansible chamber devices

Piston

With separable means for pivotally mounting connecting rod...

92187, 92219, 123193P, F16J 104, F16J 114

Patent

active

040732207

ABSTRACT:
An improved piston assembly for high-power internal combustion engines such as supercharged diesel engines. The piston includes separate head and skirt portions. An elongated bearing member having an external journal surface is formed across the bottom of the piston head. A wrist pin, which is attached to or integral with a connecting rod, defines a generally tubular shaped bearing member having an internal bearing surface in which the piston head bearing member is journaled to permit rotational movement between the connecting rod and the piston head. The external journal surface on the piston head is supported by the wrist pin along its entire length to prevent any flexing of the wrist pin when high compressive forces are applied to the piston head. The skirt is connected to the wrist pin by thrust bearings which engage an external journal surface on the wrist pin substantially along its entire length to permit rotational movement between the piston head and the piston skirt.

REFERENCES:
patent: 2260240 (1941-10-01), Taylor
patent: 2308178 (1943-01-01), Kishline
patent: 3173344 (1965-03-01), Mongitore
patent: 3695150 (1972-10-01), Salzmann
patent: 3906924 (1975-09-01), Elsbett

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