Piston with a profiled ring groove

Details Piston with a profiled ring groove Piston with a profiled ring groove

1993-02-10

1994-04-19

Argenbright, Tony M.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

92193, 277216, F02F 300, F02F 500

Patent

active

053036832

ABSTRACT:
A piston with at least one compression ring, a top end and a longitudinally extending axis for an internal combustion engine. The piston includes at least one compression ring groove defined by first and second spaced lateral surfaces for receiving the at least one compression ring. The first lateral surface is located nearest the top end of the piston. At least one of the first and second surfaces includes a plurality of profiles extending circularly around the axis and having a depth in the range of 0.003 mm to 0.015 mm and a width in the range of 0.02 mm to 0.2 mm.

REFERENCES:
patent: 4422649 (1983-12-01), Howarth
patent: 4899702 (1990-02-01), Sasaki et al.
patent: 5001965 (1991-03-01), Ruddy et al.
patent: 5083536 (1992-01-01), Ariga
patent: 5085185 (1992-02-01), Heshmat

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