Engine piston and method for its manufacture

Details Engine piston and method for its manufacture Engine piston and method for its manufacture

1997-06-06

1999-01-12

McMahon, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

F02F 300

Patent

active

058574409

ABSTRACT:
A piston for an internal combustion engine includes a textured, macroscopic, relief pattern on the inner and/or outer face of its skirt portion. The pattern improves heat transfer and oil flow, and decreases the weight of the piston, while maintaining or enhancing its strength. The pattern may be formed in the piston when it is molded, or it may be formed thereupon after molding by a chemical etch process.

REFERENCES:
patent: 4577611 (1986-03-01), Hagino
patent: 4899702 (1990-02-01), Sasaki et al.
patent: 4987865 (1991-01-01), Schenkel
patent: 5314717 (1994-05-01), Alt

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