Oil backed Stirling engine displacer diaphragm

Details Oil backed Stirling engine displacer diaphragm Oil backed Stirling engine displacer diaphragm

1981-06-05

1983-02-08

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Unit of mass is a gas which is heated or cooled in one of a...

60517, F02G 104

Patent

active

043721150

ABSTRACT:
A free piston Stirling engine having a free displacer mounted in a sealed vessel and suspended on a diaphragm. A rigid wall on the displacer forms, with the diaphragm, a closed oil cavity. A moving wall such as a piston or bellows in the rigid wall accommodates volmetric changes in the cavity when the displacer oscillates in the engine working space to control pressure induced stresses in the diaphragm.

REFERENCES:
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patent: 3530681 (1970-09-01), Dehne
patent: 3548589 (1970-12-01), Cooke-Yarborough
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patent: 3645649 (1972-02-01), Beale
patent: 3805527 (1974-04-01), Cooke-Yarborough et al.
patent: 3822388 (1974-07-01), Martini et al.
patent: 3827675 (1974-08-01), Schuman
patent: 3949554 (1976-04-01), Noble et al.
Report No. NO1-HV-42901-6, to National Heart and Lung Institute Contract No. NO1-HV-4-2901, R. P. Johnston et al., Aug. 1979.

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