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Pump assembly

a technology of pump and assembly, which is applied in the direction of piston pumps, multi-cylinder pumps, positive displacement liquid engines, etc., can solve the problems of not being tolerant, not being able to control the flow rate and pressure of water and/or mud delivered by the pump, and not being able to withstand considerable vibration

Inactive Publication Date: 2011-02-24
HUNTER HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The patent describes a pump assembly that includes a variable volume pump and a motor and pump device. The motor is connected to the pump to be driven by the fluid pressure. The motor has two chambers that change volume as the piston moves. The pump has two cylinders that change volume as the piston moves. The assembly also includes a control assembly with a sensor and a controller to control the pump. The pump is preferably a swashplate pump and there is also a priming pump to deliver fluid to the pump under pressure. The technical effect of this invention is a more efficient and precise pump that can adjust its output based on the needs of the system it is driving."

Problems solved by technology

In the oil, gas and mining industry, pumps are employed to deliver a 95 / 5 emulsion, water and / or “mud”, however these previously known pumps do not or have difficulty in controlling the flow rate and pressure of the water and / or mud delivered by the pump.
A further disadvantage of these known pumps is that frequently they are not tolerant in respect of contamination and cause considerable vibration.

Method used

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Embodiment Construction

[0016]In the accompanying drawings there is schematically depicted a pump assembly 10. The pump assembly 10 of this embodiment has two diesel engines 11 that are intended to operate at a relatively constant speed. However, it should be appreciated the diesel engines 11 could be replaced with electric motors.

[0017]The diesel engines 11 each drive a variable volume displacement pump 12. Most preferably each pump 12 is a swashplate pump and delivers drive fluid under pressure to a motor and pump device 13. This fluid under pressure is a drive fluid and drives each assembly 13 to pump a pump fluid such as a 95 / 5 emulsion, water and / or mud.

[0018]The motor and pump device 13 includes a motor portion 14 having a cylinder 15 that co-operates with a piston 16 to provide two variable volume motor chambers 17 into which the drive fluid under pressure is delivered from the pump 12 to drive the motor portion 14. The piston 16 is caused to reciprocate so as to drive piston rods 18 and 19. The pis...

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Abstract

A pump assembly (10) including two diesel engines (11) that are intended to operate at a relatively constant speed. The engines (11) each drive a variable displacement pump (12) that is preferably a swashplate pump. Fluid under pressure from each pump (12) drives an assembly (13) to pump a fluid such as a 95 / 5 emulsion, water and / or mud.

Description

TECHNICAL FIELD[0001]The present invention relates to pump assemblies and more particularly but not exclusively to pump assemblies employed in the oil, gas and mining industry.Background of the Invention[0002]In the oil, gas and mining industry, pumps are employed to deliver a 95 / 5 emulsion, water and / or “mud”, however these previously known pumps do not or have difficulty in controlling the flow rate and pressure of the water and / or mud delivered by the pump.[0003]A further disadvantage of these known pumps is that frequently they are not tolerant in respect of contamination and cause considerable vibration.OBJECT OF THE INVENTION[0004]It is the object of the present invention to overcome or substantially ameliorate at least one of the above disadvantages.SUMMARY OF THE INVENTION[0005]There is disclosed herein a pump assembly including:[0006]a variable volume pump to deliver a drive fluid under pressure;[0007]a motor and pump device, said device including a motor portion and a pump...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B17/00F04B1/12F04B1/14F04B1/20F04B9/113F04B17/05
CPCF04B1/12F04B1/14F04B17/05F04B9/113F04B1/20
Inventor SCOTT, BRADLEY JOHN
Owner HUNTER HITECH