Internal-combustion engines – Particular piston and enclosing cylinder construction – Piston
Patent
1994-08-16
1996-07-02
Macy, Marguerite
Internal-combustion engines
Particular piston and enclosing cylinder construction
Piston
277235A, 29888074, F16J 926, F02F 500
Patent
active
055311954
ABSTRACT:
A piston ring developed to prevent aluminum deposition and adhesion thereon is disclosed. The piston ring includes a ring-shaped piston ring main body including upper, lower, outer circumferential surfaces. An anti-abrasion surface treatment layer is formed on at least the lower surface of the main body, and a polybenzimidazole resin coating film including a solid lubricant, is formed on a surface of the anti-abrasion surface treatment layer.
REFERENCES:
patent: 3583713 (1971-06-01), Sugahara
patent: 3806139 (1974-04-01), Suzuki et al.
patent: 4570946 (1986-02-01), Tsuchiya et al.
patent: 4899702 (1990-02-01), Sasaki et al.
patent: 4974498 (1990-12-01), Lemelson
patent: 5104132 (1992-04-01), Onoda et al.
patent: 5405154 (1995-04-01), Tsuchiya et al.
Murata Makoto
Ogawa Katsuaki
Onoda Motonobu
Tamegai Etsuo
Tsuchiya Takeshi
Macy Marguerite
Nippon Piston Ring Co. Ltd.
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