Patent ID: 7442014

Claim:
A fluid transfer system comprising: a. a centrifugal multistage stage pump with a first stage and a second stage adapted to use between 10 and 60 volts of input power comprising: i. a pump body comprising a longitudinal axis, a pump inlet for receiving a fluid from a first location, and a pump outlet for discharging a pressurized fluid to a second location; ii. a hydraulic assembly disposed within the pump body and adapted to pressurize the fluid to form the pressurized fluid comprising: aa. a first stage comprising a first diffuser and a first impeller; and bb. a second stage comprising a second diffuser and a second impeller, wherein the pressurized fluid flows centrifugally from the first diffuser to the second diffuser; iii. a motor operably connected to the first impeller and the second impeller; iv. a first circuit board inverter disposed within the pump body; v. a microcontroller disposed on the first circuit board inverter, wherein the microcontroller comprises an operating system with memory and is adapted to control the motor; vi. a pressure transducer disposed within the pump body; vii. a heat sink having a first side in contact with the first circuit board inverter and a second side in contact with the pressurized fluid, wherein the heat sink is adapted for removing heat from the first circuit board inverter and transferring it to the pressurized fluid; viii. a control panel operably connected to the first circuit board inverter and the microcontroller; ix. a mounting system adapted for rotation of the pump body around the longitudinal axis; and x. software imbedded within the memory comprising: aa. protection features adapted for emergency shutoff; bb. monitoring features adapted for monitoring pressure, temperature and power levels; cc. control features adapted for controlling the starting, the stopping and the speed of the motor; b. a holding tank for holding the fluid operably connected to the pump body via a first conduit; c. an inlet for receiving the fluid, wherein the fluid is pressurized to form the pressurized fluid; d. a manifold for passing the pressurized fluid to the second location; and e. an outlet for receiving the pressurized fluid operably connected to the manifold.