Refrigeration – Processes – Reducing pressure on compressed gas
Reexamination Certificate
2005-05-31
2005-05-31
Doerrler, William C. (Department: 3744)
Refrigeration
Processes
Reducing pressure on compressed gas
C062S172000, C062S498000, C062S196200
Reexamination Certificate
active
06898941
ABSTRACT:
The expansion machine flowrate of a vapor compression system is regulated to directly control the supercritical pressure in the high pressure component of the transcritical system. The expansion machine is directly linked to a recompressor which recompresses the vapor phase of the expanded flow. By controlling the flowrate of the recompressor with a first valve, the flowrate of the expansion machine can be controlled to control the massflow rate through the expansion machine and therefore the high pressure of the system.
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