Diaphragm coupling between the displacer and power piston

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, 62 6, F02G 104

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043500129

ABSTRACT:
A free-piston Stirling engine usable as a heat pump has a closed vessel filled with helium working gas which is heated at the bottom end and cooled at the top end. The vessel contains a displacer supported for axial reciprocal oscillation on a gas spring post mounted on the vessel. The displacer shuttles the working gas from end to end in the vessel, alternately heating and cooling the gas. The vessel is sealed with a flexible diaphragm which flexes in response to the pressure wave generated in the vessel as the working gas is alternately heated and cooled. When the diaphragm flexes, it displaces hydraulic fluid in a hydraulic chamber and drives a power piston for driving a linear alternator and a gas compressor. A gas spring operating on a second hydraulic cylinder on the other side of the power piston stores part of the energy of the piston stroke and returns it for the return stroke. Controls are provided for balancing and controlling the hydraulic fluid pressure, for starting the Stirling engine, and for modulating its power output.

REFERENCES:
patent: Re27567 (1973-01-01), Baumgardner et al.
patent: Re29518 (1979-01-01), Franklin
patent: Re30176 (1979-12-01), Beale
patent: 2127286 (1938-08-01), Bush
patent: 2157229 (1939-05-01), Bush
patent: 2545861 (1951-03-01), Sallou
patent: 2611236 (1952-09-01), Kohler et al.
patent: 2992536 (1961-07-01), Carnahan
patent: 3296808 (1967-01-01), Mallock
patent: 3339077 (1967-07-01), Shapiro
patent: 3400281 (1968-09-01), Malik
patent: 3434162 (1969-03-01), Wolfe
patent: 3478695 (1969-11-01), Goranson et al.
patent: 3487635 (1970-01-01), Prast et al.
patent: 3525215 (1970-08-01), Conrad
patent: 3530681 (1970-09-01), Dehne
patent: 3548589 (1970-12-01), Cooke-Yarborough
patent: 3559398 (1971-02-01), Meijer et al.
patent: 3563028 (1971-02-01), Goranson et al.
patent: 3583155 (1971-06-01), Schuman
patent: 3597766 (1971-08-01), Buck
patent: 3604821 (1971-09-01), Martini
patent: 3608311 (1971-09-01), Roesel, Jr.
patent: 3645649 (1972-02-01), Beale
patent: 3678686 (1973-07-01), Buck
patent: 3733837 (1973-05-01), Lobb
patent: 3767325 (1973-10-01), Schuman
patent: 3782859 (1974-01-01), Schuman
patent: 3805527 (1974-04-01), Cooke-Yarborough et al.
patent: 3807904 (1974-04-01), Schuman
patent: 3822388 (1974-07-01), Martini et al.
patent: 3827675 (1974-08-01), Schuman
patent: 3828558 (1974-07-01), Beale
patent: 3894911 (1975-07-01), Cooke-Yarborough
patent: 3899888 (1975-08-01), Schuman
patent: 3902328 (1975-09-01), Claudet
patent: 3906739 (1975-09-01), Raimondi
patent: 3928974 (1975-12-01), Benson
patent: 3937018 (1976-02-01), Beale
patent: 3949554 (1976-04-01), Noble et al.
patent: 3991586 (1979-11-01), Acord
patent: 4012910 (1977-03-01), Schuman
patent: 4036018 (1977-07-01), Beale
patent: 4044558 (1977-10-01), Benson
patent: 4058382 (1977-11-01), Mulder
patent: 4072010 (1979-02-01), Schuman
patent: 4077216 (1978-03-01), Cooke-Yarborough
patent: 4132505 (1979-01-01), Schuman
patent: 4148195 (1979-04-01), Gerstmann et al.
patent: 4183214 (1980-01-01), Beale et al.
patent: 4215548 (1980-08-01), Beremand
AERE-R7693-E. H. Cooke-Yarborough, "Fatigue Characteristics of the Flexing Members of the Harwell Thermomechanical Generator".
Harwell Report AERE-M2437 (Revised), Issued Mar. 1974, E. H. Cooke-Yarborough, "Simplified Expressions for the Power Output of a Lossless Stirling Engine".
Harwell Report AERE-R8036, Issued May 1975, E. H. Cooke-Yarborough, "Efficient Thermo-Mechanical Generation of Electricity from the Heat of Radioisotopes".
Harwell Report AERE-M2886, Issued Apr. 1977, E. H. Cooke-Yarborough, "A Data Buoy Powered by a Thermo-Mechanical Generator: Results of a Years Operation at Sea".
E. H. Cooke-Yarborough, "Stirling-Cycle Thermo-Mechanical Power Sources for Remote or Inaccessible Communications Sites".
"60-Cycle AC from Sunshine, Solar Stirling Engine," Popular Science, Jun. 1978, pp. 74-77.
"Thermal Oscillators," 12th IEC, Aug. 30, 1977.
"Free Piston Heat Pumps," 12th IECEC, Aug. 30, 1977.
"Thermal Oscillators," 8th IECEC Meeting on Aug. 14, 1973 at Philadelphia, PA.
Report No. NO1-HV-4-2901-6 in Contract No. NO1-HV-4-2901, granted by the National Heart and Lung Institute to the University of Washington Joint Center of Graduate Studies, Report Date Aug. 1979.
"A Practical Philips Cycle for Low-Temperature Refrigeration", Walter H. Higa, Jul.-Aug. 1965, Cryogenic Technology, pp. 203-208.
"A Small Free-Piston Stirling Refrigerator" 14th IECEC, vol. 1, Aug. 5-10, 1979, A. K. DeJonge.

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