Oil backed Stirling engine displacer diaphragm

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...

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60517, F02G 104

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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.

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patent: 3822388 (1974-07-01), Martini et al.
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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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