Thermodynamic oscillator with average pressure control

Details Thermodynamic oscillator with average pressure control Thermodynamic oscillator with average pressure control

1983-08-24

1985-02-12

Husar, Stephen F.

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...

60520, 62 6, F02G 106

Patent

active

044982968

ABSTRACT:
A thermodynamic oscillator having a displacer (5) and a piston (3) (further displacer) movable due to pressure fluctuations at the resonance frequency of the oscillator. The displacer (5) and the piston (3) are located in a working space (11, 15) which is filled with working medium and can be connected through a release valve (51, 125, 167) and a supply valve (53, 129, 169), respectively, to simple reservoir (55) filled upon working medium with an increase and a decrease, respectively, of the ambient temperature with respect to a nominal temperature. The valves (51, 53, 125, 129, 167, 169) have an opening pressure which is a function of the ambient temperature. The average pressure and the resonance frequency of the oscillator can thus be stabilized at a variable ambient temperature.
The oscillator can be operated as a cold-gas engine, a hot-gas engine (motor), a heat pump or a current generator.

REFERENCES:
patent: 2794315 (1957-06-01), Meijer
patent: 2867973 (1959-01-01), Meyer
patent: 3902321 (1975-09-01), Bergman

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