Variable speed pump-motor assembly for fuel dispensing system

Details Variable speed pump-motor assembly for fuel dispensing system Variable speed pump-motor assembly for fuel dispensing system

B - Operations, Transporting

67

D

B67D 7/04 (2010.01) B67D 7/32 (2010.01) B67D 7/58 (2010.01) B67D 7/68 (2010.01) F04D 15/00 (2006.01) F04D 15/02 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2180875

A pumping system for use in a fuel service station including one or more fuel dispensers, a fuel storage tank and conduits connecting the fuel dispensers with the tank. The pumping system com-prises a variable speed pump-motor-assembly for pumping fuel from the storage tank to the conduit and the dispensers, and a control connected to the pump-motor assembly for holding the fuel pressure in a preset range. Preferably the range is that re-quired for efficient operation of a vapor recovery system, or other requirement by the EPA or by anoth-er agency, or by a service station operator. The control includes sensors which respond to the pres-sure in the conduits leading to the fuel dispensers. The sensors may comprise, for example, a pressure sensor in the conduit, or they may comprise power consumption sensors connected to the electrical power supply for the variable speed pump-motor as-sembly.

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