Piston for an internal combustion engine

Details Piston for an internal combustion engine Piston for an internal combustion engine

1994-03-23

1996-01-30

Macy, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

F02F 300

Patent

active

054873649

ABSTRACT:
A piston for an internal combustion engine includes a skirt portion configured so that a value S/(D * L) is in the range of 0.4-0.55, where L is a length of the skirt portion, D is a diameter of a cylinder bore, and S is an area of an image of the skirt portion when the skirt portion is projected onto a plane perpendicular to a direction connecting a pair of boss portions. This condition decreases the friction between the piston and the cylinder bore.

REFERENCES:
patent: 2802707 (1957-08-01), Day
patent: 3319535 (1967-05-01), Holcombe
patent: 4648309 (1987-03-01), Schellmann
patent: 4856417 (1989-08-01), Ishikawa
patent: 5076225 (1991-12-01), Tokoro et al.
patent: 5257603 (1993-11-01), Bauer et al.

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