Patent ID: 6898948
Filing Date: 2005-05-31
Classification: F04C

Abstract:
1. Screw compressor for operation in a cooling circuit provided with a subcooling circuit, said compressor comprising: two screw rotors which are disposed in screw rotor bores in a compressor casing for compressing a refrigerant of said cooling circuit which enters at a refrigerant inlet and it is discharged into said cooling circuit at a refrigerant outlet, said subcooling circuit cooling the refrigerant in the cooling circuit before the refrigerant enters an evaporator, a second inlet provided in the compressor casing for expanded refrigerant from an outlet of said subcooling circuit, said expanded refrigerant passing to the second inlet in a system of lines, the second inlet being disposed in such a way that it opens out into compression spaces enclosed by the screw rotors and the screw rotor bores, and a damper channel preceding the second inlet for suppressing oscillations or pulsations occurring in said system of lines, said damper channel being associated with the system of lines and containing expanded refrigerant from the subcooling circuit.