Piston structure for internal combustion engine

Details Piston structure for internal combustion engine Piston structure for internal combustion engine

1990-05-22

1991-11-12

Dolinar, Andrew M.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92238, 92239, F02F 300

Patent

active

050638939

ABSTRACT:
A piston for an internal combustion engine is provided. This piston includes a piston body which has an upper ring land portion and a skirt portion, pin boss portions formed in the skirt portion into which a piston pin is inserted for attaching the piston body to a connecting rod, and a rib portion projecting from an inner wall of the skirt portion. The rib portion extends from the first areas which include cross points where the centerline, perpendicularly passing the longitudinal axis of the pin boss, intersects the inner wall of the piston skirt to the second areas which include the bottoms of the pin boss portions.

REFERENCES:
patent: 4358881 (1982-11-01), Mahrus et al.
patent: 4702151 (1987-10-01), Munro et al.
patent: 4709621 (1987-12-01), Matsui et al.
patent: 4785774 (1988-11-01), Tokoro
patent: 4887519 (1989-12-01), Steidle

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