Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Reexamination Certificate
2005-05-31
2005-05-31
Jones, Melvin (Department: 3744)
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
C062S508000
Reexamination Certificate
active
06898948
ABSTRACT:
In order to provide a screw compressor comprising two screw rotors which are disposed in screw rotor bores in a compressor casing and which compress a refrigerant entering at a refrigerant inlet and discharge it at a refrigerant outlet, and comprising an inlet provided in the compressor casing for refrigerant which is coming from a subcooling circuit and is passed to the inlet in a system of lines, the inlet being disposed in such a way that it opens out into compression spaces enclosed by the screw rotors and screw rotor bores, in which compressor the pressure oscillations or pulsations occurring at the inlet propagate as little as possible to the pipeline system of the subcooling circuit outside the compressor casing, it is proposed that the inlet is preceded by a damper channel which is associated with the system of lines and in which refrigerant from the subcooling circuit is present.
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Herbrich, M., “Druckluft Ohne Puls Drehkolbengeblase Mit Integriertem Pulsationsabbau”, Chemie Technik, Bd. 23, No. 4, Apr. 1, 1994,pp. 92-94.
Hossner Klaus
Roelke Stephan
Bitzer Kuehlmaschinenbau GmbH
Jones Melvin
Lipsitz Barry R.
McAllister Douglas M.
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