Loading patent…
AssigneeHitachi Industrial Equipment Systems Co., Ltd.
InventorsHideki Fujimoto, Hitoshi Nishimura, Natsuki Kawabata
Estimating the term…
An oilless screw compressor incorporating water-cooled cooling units for cooling compressed air discharged from compressor bodies having a pair of male and female screw rotors which can be rotated in a contactless and oilless manner, the cooling units comprising a plate type heat-exchanger, and the amount of cooling water for the plate type heat-exchanger being adjustable. With this configuration, a difference between a temperature during load operation and a temperature upon automatic stopping and during unload operation of the compressor can be reduced, so that the cooling unit can be restrained from being damaged or broken within a short period, thereby it is possible to provide a highly reliable oilless screw compressor.
An oilless screw compressor, comprising a water cooled cooling unit for cooling compressed air discharged from a compressor body having a pair of male and female screw rotors which are rotatable in a contactless and oilless manner,
An oilless screw compressor comprising:
Dependencies are inferred from the claim text.