Screw compressor

A valve (92) provided in line system of a lubricant supply is controlled by difference in pressure between pressure in outlet channel of compressor housing (40) and reference pressure influenced by pressure in refrigerant circuit. The valve is closed when screw rotors (44,46) are compressing refrige...

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Bibliographische Detailangaben
1. Verfasser:	DIETERICH, ROLF
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	A valve (92) provided in line system of a lubricant supply is controlled by difference in pressure between pressure in outlet channel of compressor housing (40) and reference pressure influenced by pressure in refrigerant circuit. The valve is closed when screw rotors (44,46) are compressing refrigerant, and closed when rotors are not compressing refrigerant. A lubricant supply conveys lubricant from a lubricant reservoir acted upon by pressure via the line system ,to the screw rotor during operation. The compressor housing includes screw rotor receiving bores (42), an inlet channel (70) and the outlet channel for refrigerant to be compressed. The screw rotors are arranged in the screw rotor receiving bores.