Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Reexamination Certificate
2008-03-25
2008-03-25
Doerrler, William C (Department: 3744)
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
C062S049200, C062S054100
Reexamination Certificate
active
07347053
ABSTRACT:
A densifier is provided which in one embodiment can simultaneously densify two cryogenic liquids at different temperatures. The densifier has an oscillatory power source for generating oscillatory power and a two stage pulse tube refrigerator. The oscillatory power source can be a thermoacoustic heat engine or a mechanical oscillatory power source such as a linear flexure bearing compressor. The first stage densifies a first cryogenic liquid to a first cryogenic temperature, and the second stage densifies a second cryogenic liquid to a second, lower cryogenic temperature. A densified propellant management system also is provided which has a densifier for simultaneously densifying two cryogenic liquids at different temperatures, and a cryogenic temperature probe for measuring the temperature gradient in a cryogenic liquid.
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Culler Adam John
Haberbusch Mark Steven
Doerrler William C
Pearne & Gordon LLP
Sierra Lobo Inc.
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