Piston with variable side clearance

Details Piston with variable side clearance Piston with variable side clearance

1977-09-23

1979-06-19

Cohen, Irwin C.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92203, 123193CP, F16J 104

Patent

active

041583280

ABSTRACT:
A piston having a floating wedge carried in a recess of the skirt for limited axial movement. Reciprocation of the piston shifts the wedge position between upper and lower extremes, reducing the effective piston clearance in its cylinder during the upper portions of its stroke, thus reducing lateral piston motion and resulting piston slap caused noise.

REFERENCES:
patent: 1422729 (1922-07-01), Waterhouse
patent: 2386873 (1945-10-01), Mercier
patent: 2862475 (1958-12-01), Kinsman
patent: 3906923 (1975-09-01), Harker
patent: 3913885 (1975-10-01), Greenwood et al.
patent: 4079948 (1978-03-01), Paureau

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