Piston having an aperture with an insert secured therein

Details Piston having an aperture with an insert secured therein Piston having an aperture with an insert secured therein

1991-06-11

1993-10-12

Look, Edward K.

Expansible chamber devices

Piston

Open-ended hollow skirt type

92225, 92228, 1231936, F16J 104

Patent

active

052515400

ABSTRACT:
A piston, e.g. for an internal combustion engine, comprises a crown (16) and a skirt (12). The skirt (12) has an aperture (22) in which an insert (14) of a different material from the remainder of the skirt is secured. The insert (14) may be of plastics material injection moulded into a metal skirt. The insert (14) provides a plurality of pads (34) which extend from a thrust surface of the skirt so that the pads can transmit lateral forces and cause lubricant to be forced over the pads by hydrodynamic action during reciprocation of the piston.

REFERENCES:
patent: 3442183 (1969-05-01), Howe et al.
patent: 3906923 (1975-09-01), Harker
patent: 3983793 (1976-10-01), Beardmore
patent: 4158328 (1979-06-01), Beardmore
patent: 4535682 (1985-08-01), Collyear et al.
patent: 4677900 (1987-07-01), Philby

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