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...
Patent
1981-06-05
1983-04-26
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
043809022
ABSTRACT:
A diaphragm suspension system for a free piston Stirling engine includes a transverse wall across the cold end of the displacer. An upper diaphragm is attached to the displacer shell above the transverse wall, and a support diaphragm is attached at its center to a partition fixed to the engine vessel, and is attached at its peripheral edge to the lower end of the displacer. A lower oil cavity is defined between the transverse wall and the support diaphragm, and an upper oil cavity is defined between the upper diaphragm and the transverse wall. A cylinder is formed in the transverse wall communicating between the oil cavities, and a piston is disposed in the cylinder and is fixed to the partition. When the displacer moves, the piston remains stationary and compensates for the oil displacement caused by the support diaphragm flexing into and out of the oil cavity, so the support diaphragm experiences only or primarily displacement induced stress rather than pressure induced stress. The top oil cavity ensures that leakage past the piston will be equal in both directions, and also provides an additional spring effect to return the displacer toward its midstroke position.
REFERENCES:
patent: Re29518 (1978-01-01), Franklin
patent: 2611236 (1952-09-01), Kohler et al.
patent: 3400281 (1968-09-01), Malik
patent: 3530681 (1970-09-01), Dehne
patent: 3548589 (1970-12-01), Cooke-Yarborough
patent: 3604821 (1971-09-01), Martini
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. NO1-4-2901, R. P. Johnston, et al., Aug. 1979.
Claeys Joseph V.
Husar Stephen F.
Mechanical Technology Incorporated
Ostrager Allen M.
Trausch III Arthur N.
LandOfFree
Sealed oil-backed displacer suspension diaphragm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealed oil-backed displacer suspension diaphragm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealed oil-backed displacer suspension diaphragm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1560878