Centrifugal multistage pump

• US 20050095150A1
• Filed: 10/28/2004
• Published: 05/05/2005
• Est. Priority Date: 10/29/2003
• Status: Active Grant

• Current Assignee: Aleesandro Santoni, Case Crowther, Giancarlo Roggiolani, Marco Trovi, Mark Wayne Mellinger, Melvyn Wayne Mellinger, Michele Leone, Paul Craig Mellinger
• Original Assignee: Aleesandro Santoni, Case Crowther, Giancarlo Roggiolani, Marco Trovi, Mark Wayne Mellinger, Melvyn Wayne Mellinger, Michele Leone, Paul Craig Mellinger
• Inventors: Santoni, Aleesandro, Roggiolani, Giancarlo, Trovi, Marco, Leone, Michele, Mellinger, Paul Craig, Crowther, Case, Mellinger, Mark Wayne, Mellinger, Melvyn Wayne
• Granted Patent: US 7,407,371 B2
• Time in Patent Office: Days
• US Class Current: 417/423.3
• CPC Class Codes: F04D 13/0686 Mechanical details of the pump control unit pump control F04D15/00
• CPC Class Codes: F04D 15/0066 by changing the speed, e.g. of the driving engine
• CPC Class Codes: F04D 15/0088 Testing machines
• CPC Class Codes: F04D 29/5806 Cooling the drive system
• CPC Class Codes: F04D 29/5813 Cooling the control unit
• CPC Class Codes: F04D 29/605 specially adapted for liquid pumps

Abstract

A centrifugal multistage stage pumps described herein. The centrifugal multistage pump includes a pump body having a longitudinal axis, an inlet for receiving a fluid from a first location and an outlet for discharging a pressurized fluid to a second location and a hydraulic assembly disposed within the pump body and adapted to pressurize the fluid. The pump further includes a motor, a first circuit board inverter disposed within the pump body, a microcontroller disposed on the first circuit board inverter, a pressure transducer disposed within the pump body, a heat sink adjacent the first circuit board inverter, a control panel connected to the circuit board inverter and the microcontroller. The pump has a mounting system adapted for rotation of the pump body around the longitudinal axis. In addition, the pump includes software imbedded within the memory, wherein the software includes protection, monitoring and control the features of the pump.

Claims

1. A centrifugal multistage stage pump adapted to use between 10 and 60 volts of input DC power comprising:

a. a pump body comprising a longitudinal axis, an inlet for receiving a fluid from a first location and an outlet for discharging a pressurized fluid to a second location;

b. a hydraulic assembly disposed within the pump body and adapted to pressurize the fluid to form the pressurized fluid, wherein the hydraulic assembly comprises;

i. a first diffuser comprising a first impeller; and

ii. a second diffuser comprising a second impeller, wherein the pressurized fluid flows centrifugally from the first diffuser to the second diffuser;

c. a motor operably connected to the first impeller and the second impeller;

d. a first circuit board inverter disposed within the pump body;

e. 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;

f. a pressure transducer disposed within the pump body;

g. a heat sink adjacent the first circuit board inverter adapted for removing heat from the first circuit board inverter and transferring it to the pressurized fluid;

h. a control panel operably connected to the first circuit board inverter and the microcontroller;

i. a mounting system adapted for rotation of the pump body around the longitudinal axis; and

j. software imbedded within the memory comprising;

i. protection features adapted for emergency shutoff;

ii. monitoring features adapted for monitoring pressure, temperature and power levels; and

iii. control features adapted for control of motor speed, start and stop of motor.

2. The centrifugal multistage pump of claim 1, wherein the fluid comprises water, waste, a food product or combinations thereof.

3. The centrifugal multistage pump of claim 1, wherein the first location is a floating vessel.

4. The centrifugal multistage pump of claim 1, wherein the second location is an ambient location.

5. The centrifugal multistage pump of claim 1, wherein the pressurized fluid is moved radially outwards from a periphery of the second impeller to the pump body.

6. The centrifugal multistage pump of claim 1 further comprising at least two circuit board inverters.

7. The centrifugal multistage pump of claim 6, wherein the at least two circuit board inverters are operably connected by a pin.

8. The centrifugal multistage pump of claim 1, wherein the first circuit board inverter is pleated.

9. The centrifugal multistage pump of claim 1, wherein the control panel comprises at least one switch and at least one LED.

10. The centrifugal multistage pump of claim 1, wherein the motor is a three phase motor.

11. The centrifugal multistage pump of claim 1, wherein the motor is an asynchronous induction one, two or three phase 10 to 60 volt AC brushless motor.

12. The centrifugal multistage pump of claim 1, wherein the first circuit board inverter comprises a DC to a one, two or three phase AC inverter.

13. The centrifugal multistage pump of claim 1, wherein the pressure transducer is formed of a ceramic material.

14. The centrifugal multistage pump of claim 1, wherein the pressure transducer comprises a speed controller.

15. The centrifugal multistage pump of claim 1, wherein the control features comprise power settings.

16. The centrifugal multistage pump of claim 1, wherein the protection features comprise a dry run feature, an over voltage feature or combinations thereof.

17. The centrifugal multistage pump of claim 1, wherein the control features include a variance feature adapted for varying the revolutions per minute providing for constant power.

18. A low vibration, high frequency and low decibel pump using between 10 volts and 60 volts DC comprising:

a. a pump body comprising a longitudinal axis, an inlet for receiving a fluid from a first location and an outlet for discharging a pressurized fluid to a second location;

b. a low decibel hydraulic assembly disposed within the pump body and adapted to pressurize the fluid to form the pressurized fluid, wherein the hydraulic assembly comprises;

i. a first diffuser comprising a first impeller; and

ii. a second diffuser comprising a second impeller, wherein the pressurized fluid flows centrifugally from the first diffuser to the second diffuser and the impellers impart a high frequency to the pump;

c. a motor operably connected to the first impeller and the second impeller, wherein the motor imparts a low vibration to the pump;

d. a first circuit board inverter disposed within the pump body;

e. 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;

f. a pressure transducer disposed within the pump body;

g. a heat sink adjacent the first circuit board inverter adapted for removing heat from the first circuit board inverter and transferring it to the pressurized fluid;

h. a control panel operably connected to the first circuit board inverter and the microcontroller;

i. a mounting system adapted for rotation of the pump body around the longitudinal axis; and

j. software imbedded within the memory comprising;

i. protection features adapted for emergency shutoff;

ii. monitoring features adapted for monitoring pressure, temperature and power levels; and

iii. control features adapted for control of motor speed, start and stop of motor.

19. The low vibration, high frequency and low decibel pump of claim 18, wherein the fluid comprises water, waste, a food product or combinations thereof.

20. The low vibration, high frequency and low decibel pump of claim 18, wherein the first location is a floating vessel.

21. The low vibration, high frequency and low decibel pump of claim 18, wherein the second location is an ambient location.

22. The low vibration, high frequency and low decibel pump of claim 18, wherein the pressurized fluid is moved radially outwards from a periphery of the second impeller to the pump body.

23. The low vibration, high frequency and low decibel pump of claim 18, further comprising at least two circuit board inverters.

24. The low vibration, high frequency and low decibel pump of claim 23, wherein the at least two circuit board inverters are operably connected by a pin.

25. The low vibration, high frequency and low decibel pump of claim 18, wherein the first circuit board inverter is pleated.

26. The low vibration, high frequency and low decibel pump of claim 18, wherein the control panel comprises at least one switch and at least one LED.

27. The low vibration, high frequency and low decibel pump of claim 18, wherein the motor is a three phase motor.

28. The low vibration, high frequency and low decibel pump of claim 18, wherein the motor is an asynchronous induction one, two or three phase 10 to 60 volt AC brushless motor.

29. The low vibration, high frequency and low decibel pump of claim 18, wherein the first circuit board inverter comprises a DC to a one, two or three phase AC inverter.

30. The low vibration, high frequency and low decibel pump of claim 18, wherein the pressure transducer is formed of a ceramic material.

31. The low vibration, high frequency and low decibel pump of claim 18, wherein the pressure transducer comprises a speed controller.

32. The low vibration, high frequency and low decibel pump of claim 18, wherein the control features comprise power settings.

33. The low vibration, high frequency and low decibel pump of claim 18, wherein the protection features comprise a dry run feature, an over voltage feature or combinations thereof.

34. The low vibration, high frequency and low decibel pump of claim 18, wherein the control features include a variance feature adapted for varying the revolutions per minute providing for constant power.