Piston ring coating

Details Piston ring coating Piston ring coating

1996-04-19

1998-02-03

McMahon, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

92223, F16J 926, F02F 500

Patent

active

057133247

ABSTRACT:
A system for preventing microwelding of a piston ring installed in a circumferential groove of a piston, wherein the ring has at least one piston groove engaging surface which is coated with thermal set resin, polytetrafluoroethylene and molydisulfide. This composition provides critical lubrication during the piston and piston ring break-in period and prevents localized high pressure, and high temperature areas which promote microwelding.

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Product Data Sheet for XYLAN 1620 from Whitford Corporation.

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