Center-porting and bearing system for free-piston stirling...

Details Center-porting and bearing system for free-piston stirling... Center-porting and bearing system for free-piston stirling...

F - Mech Eng,Light,Heat,Weapons

02

G

60/30

F02G 3/02 (2006.01) F02G 1/043 (2006.01)

Patent

CA 1166024

-1- TITLE: CENTER-PORTING AND BEARING SYSTEM FOR FREE-PISTON STIRLING ENGINES Inventor: William T. Beale of Athens, Ohio Abstract The displacer and piston of a Stirling engine are provided with inner cylindrical walls which serve as bearing surfaces in close fitting, sliding engagement with the outer bearing surface of a longitudinally extending, tubular center post. The intPrnal bore of the center post is in fluid communication with the bounce space. Center porting is provided by passages in the piston, displacer and tubular wall of the center post so that fluid communication is provided periodically between the work space and bounce space and between the displacer gas spring and the bounce space. In this manner, the piston and displacer remain properly positioned within the engine housing.

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