Systems and methods for fluid pump outlet pressure regulation

a technology of fluid pump and outlet pressure, which is applied in the direction of fluid pressure control, positive displacement liquid engine, instruments, etc., can solve the problem of higher energy consumption of lubricating pump

Inactive Publication Date: 2017-06-15
HUSCO AUTOMOTIVE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The system effectively regulates oil pump outlet pressure across varying engine speeds, ensuring reliable engine lubrication while improving fuel economy by adjusting oil flow and pressure within a predetermined range, thus reducing energy consumption.

Problems solved by technology

Unfortunately, this causes the lubrication pump's energy consumption to be higher than would otherwise be ideal, because in many operating regimes, only a reduced volume and pressure of oil is required by the engine.

Method used

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  • Systems and methods for fluid pump outlet pressure regulation
  • Systems and methods for fluid pump outlet pressure regulation
  • Systems and methods for fluid pump outlet pressure regulation

Examples

Experimental program
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Embodiment Construction

[0030]With reference to FIG. 1, a fluid pressure regulation system 20 for controlling the supply of lubricating oil 22 to an internal combustion engine 24 is shown. The engine 24 includes an oil pump 26 and an oil reservoir 30 containing a supply of lubricating oil 22. An oil distribution network 32 connects the engine 24 with the oil pump 26 and oil reservoir 30.

[0031]The fluid pressure regulation system 20 also includes a pressure control valve 36. The pressure control valve 36 is in fluid communication with the oil pump 26, the oil reservoir 30 and the oil distribution network 32. The pressure control valve 36 serves to control the oil pressure within the oil distribution network 32 and to the engine 24.

[0032]As is well known in the art, the oil pump 26 is typically mechanically driven by rotation of the engine's crankshaft (not shown), although other pump arrangements are also well known. The oil pump 26, however, differs from conventional pumps in that its displacement, i.e., t...

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Abstract

Fluid pump pressure regulation systems and methods have a valve body with a bore and a valve spool. The valve spool connects a first and second port to a third port in different valve spool positions. The first port is in fluid communication with an output of a fluid pump to receive a first fluid pressure from the fluid pump. The second port is in fluid communication with a fluid reservoir. The third port is in fluid communication with a fluid pump input to provide a second fluid pressure to the fluid pump to control the first fluid pressure from the fluid pump. A linear actuator is adjacent the valve body, with a first spring and a second spring biasing the valve spool in a first or second direction.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of U.S. patent application Ser. No. 13 / 803,152, filed on Mar. 14, 2013, and entitled “Systems and Methods for Fluid Pump Outlet Pressure Regulation.”STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.BACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to fluid pump outlet pressure regulation; and in particular to fluid pump outlet pressure regulation as a function of engine speed.[0005]2. Description of the Related Art[0006]It is known in the art relating to fluid pumps, such as engine oil pumps, to vary the pump output (displacement) as a function of pump outlet pressure in order to maintain a desired pump outlet pressure as the speed of the engine driving the pump is varied. Regulating the fluid pump outlet pressure can increase engine efficiency by reducing the volume of oil pumped at higher engine speeds with a resultan...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F01M1/16G05D16/20F16K11/07
CPCF01M1/16G05D16/204F16K11/07F01M2001/0238F01M2001/0246F16K17/00F16K51/00G05D16/2024Y10T137/0379Y10T137/86879F04B49/002F04B49/06F04B49/22F04C14/18F04C14/22F16K11/04G05D16/20
InventorVAN WEELDEN, CURT
OwnerHUSCO AUTOMOTIVE HLDG