MX9801204A - Outlet pressure control for internal gear pump. - Google Patents

Outlet pressure control for internal gear pump.

Info

Publication number
MX9801204A
MX9801204A MX9801204A MX9801204A MX9801204A MX 9801204 A MX9801204 A MX 9801204A MX 9801204 A MX9801204 A MX 9801204A MX 9801204 A MX9801204 A MX 9801204A MX 9801204 A MX9801204 A MX 9801204A
Authority
MX
Mexico
Prior art keywords
bypass
ports
load
pressure control
internal gear
Prior art date
Application number
MX9801204A
Other languages
Spanish (es)
Other versions
MXPA98001204A (en
Inventor
Eric R Cozens
Original Assignee
Stackpole Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stackpole Ltd filed Critical Stackpole Ltd
Priority to MXPA/A/1998/001204A priority Critical patent/MXPA98001204A/en
Priority claimed from MXPA/A/1998/001204A external-priority patent/MXPA98001204A/en
Publication of MX9801204A publication Critical patent/MX9801204A/en
Publication of MXPA98001204A publication Critical patent/MXPA98001204A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

A gerotor pump is described for use with non-compressible fluids such as automotive coolant or hydraulic oil. The pump includes three separate pump outlet ports, a bypass return passage, and an integral four position spool valve. Increasing back pressure from a downstream load is sensed by the spool valve which moves accordingly to restrict the fluid supplied. In the first position a full flow fluid is supplied to the load from all three ports. In the second position one port is vented to the bypass and the flow from the other two ports is directed to the load. In the third position two ports vent to bypass, and one port drives the load. In the fourth position all ports vent to bypass. In each case flow vented to bypass is not first compressed, permitting a smaller motor to be used.
MXPA/A/1998/001204A 1998-02-12 Output pressure control for an inte engine pump MXPA98001204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MXPA/A/1998/001204A MXPA98001204A (en) 1998-02-12 Output pressure control for an inte engine pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MXPA/A/1998/001204A MXPA98001204A (en) 1998-02-12 Output pressure control for an inte engine pump

Publications (2)

Publication Number Publication Date
MX9801204A true MX9801204A (en) 1998-10-31
MXPA98001204A MXPA98001204A (en) 1999-01-11

Family

ID=

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