STIRLING ENGINE Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: movable race 14 of a face contact seal of the Stirling engine is provided with conical shank 16. Shank 16 and crankshaft 2 partially are enclosed with thin-walled rubber gasket 13. Fixed race is made in block with seal case 17 and its contact ring 18 is made of quartz glass. Blade wheel 13 of a centrifugal pump is set on crankshaft 2 and abuts on case 17 by impeller 20 made on its flat side. The case and crankshaft are provided with passages 21 for supply and discharge of a coolant which is fed to contact rings 15,18 by using intakes 24 positioned within suction space 25 of blade wheel 13 and impeller 20 which creates rarefaction in passages 21. Fluid leakages through a space between movable race 14 and crankshaft 2 are prevented by using thin-walled rubber gasket 19 which encloses shank 16 and allows engine to operate at significant pressures of fluid. EFFECT: enhanced efficiency. 1 dwg