F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 49/06 (2006.01) F04B 49/02 (2006.01) F04D 15/02 (2006.01) G05D 7/06 (2006.01)
Patent
CA 2190809
The invention concerns a method to control stops of a pump in a sewage water pump station. According to the invention the current supply to the motor is so controlled that the pump at certain times operates until the water level has gone down so far that the pump starts sucking air.
Itt Flygt Ab
Smart & Biggar
LandOfFree
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