Piston ring comprising a coated running surface, and coating...

Details Piston ring comprising a coated running surface, and coating... Piston ring comprising a coated running surface, and coating...

2005-11-28

2009-12-22

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

Piston

Open-ended hollow skirt type

C092S248000

Reexamination Certificate

active

07634963

ABSTRACT:
The invention relates to a piston ring whose running surface is provided with a coating containing a plastic material. Said piston ring is characterized in that the coating is composed of at least one polyamide-imide and/or at least one polyether ether ketone with embedded particles which can be embodied as hard material particles, solid lubricant particles, or metallic particles. The invention further relates to a piston/piston ring arrangement comprising at least one inventive piston ring and an agent for coating at least the running surface of the piston ring.

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International Search Report.

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