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
1982-09-08
1985-01-01
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, 62 6, F02G 104
Patent
active
044909748
ABSTRACT:
Positive displacement isothermal gas cycle machinery is designed with explicit control of the heat flow between the gas, the walls of the chamber and a thermal reservoir externally of the chamber. The control is achieved by providing a large chamber wall area to chamber volume ratio through the use of bellows-like walls having a configuration that ensures during each stroke numerous heat exchanges between the working gas and the bellows-like walls. The machinery includes Stirling cycle heat pumps and motors and isothermal compressors. Significant gains in thermal efficiency, up to a factor of 2, are attainable because the largest inefficiency in all isothermal machinery is imperfect control of heat flow. A regenerator for the isothermal machinery minimizes cycle losses due to gas transfer friction, gas thermal conduction, dead volume, regenerator heat mass, regenerator heat mass thermal skin depth, and regenerator mass thermal conductivity in the gas flow direction.
REFERENCES:
patent: 2989281 (1961-06-01), Fritts
patent: 3530681 (1970-09-01), Dehne
patent: 3827675 (1974-08-01), Schuman
patent: 4309872 (1982-01-01), Raser et al.
Colgate Thermodynamics Co.
Ostrager Allen M.
LandOfFree
Isothermal positive displacement machinery does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Isothermal positive displacement machinery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isothermal positive displacement machinery will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-572466