COMPRESSOR WITH OIL INJECTION COMPRISING THERMOSWITCH Russian patent published in 2009 - IPC F04C29/00 F04C18/16 F04C28/28 

FIELD: engines and pumps.

SUBSTANCE: invention is related to compressors with oil injection, in particular, to helical compressors. Helical compressor with oil injection comprises compressor unit (1) driven by engine for production of compressed air, which interacts with oil circuit for lubrication, to which oil separator (6) is connected from compressed air. In area of oil-containing compressed air inlet to oil separator, automatic return thermoswitch (11) is provided for disconnection of compressor unit (1) after maximum permissible temperature has been achieved in air and oil mixture. Inside oil-separator (6) at least one additional thermoswitch (12) is provided, being arranged with the possibility to immediately disconnect compressor unit (1) in case of fire or ignition of oil-containing air contained in oil separator (6). Additional thermoswitch (12) is arranged in the form of non-automatic return thermoswitch. Actuation of specified thermoswitch results in feeding of extinguishing means into oil separator (6).

EFFECT: negative consequences of fire or ignition are eliminated in device for oil separation.

8 cl, 2 dwg