PISTON SEAL FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1994 - IPC

Abstract RU 2019723 C1

FIELD: engine engineering. SUBSTANCE: seal has main sealing members made of cylindrical rollers, which are provided with conical end parts, races and four flat springs of V- shaped in cross-section arranged over periphery of the piston within grooves having rectangular cross-section. The seal has also additional sealing members made of oil catching ring having rectangular cross-section and wave- like spring interposed between piston and oil catching ring. The additional seal members are positioned in zone of bottom face of the piston. EFFECT: enhanced reliability. 6 dwg

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RU 2 019 723 C1

Authors

Zelenin Nikolaj Stepanovich

Dates

1994-09-15—Published

1991-05-27—Filed