Water ring type vacuum pump

Details Water ring type vacuum pump Water ring type vacuum pump

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 7/00 (2006.01) F04C 18/00 (2006.01) F04C 19/00 (2006.01)

Patent

CA 2117297

In a water ring type vacuum pump, an impeller (6) having a plurality of blades (6a) is rotatably provided in a pump chamber (3) communicating with an air inlet (lb) and an air outlet (1d), and a water inlet (1a) for feeding sealing water to a center portion of the pump chamber is further provided. Sealing water that has moved to a peripheral wall portion (3a) of the pump chamber (3) is flowed back to a center portion (3b) of the pump chamber (3) . By this arrangement, the sealability of sealing water can be improved and the sealing water can be saved in amount.

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