Cast-iron piston rings coated with commercially-available antifriction materials improves cylinder life of high-performance Stirling engine. Ring is efficient heat conductor between piston and cylinder. Device has low thermal expansion which maintains minimum gap in ring, good radial force characteristics, and essentially indefinite life.
Improved piston rings for a stirling engine
NASA Tech Briefs ; 4 , 3
1980-04-01
Miscellaneous
No indication
English
Rotary Liquid Piston Stirling Engine*
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