GB1519276A - Apparatus for evaluating efficiency of hydraulic fluid displacement devices - Google Patents

Apparatus for evaluating efficiency of hydraulic fluid displacement devices

Info

Publication number
GB1519276A
GB1519276A GB11632/77A GB1163277A GB1519276A GB 1519276 A GB1519276 A GB 1519276A GB 11632/77 A GB11632/77 A GB 11632/77A GB 1163277 A GB1163277 A GB 1163277A GB 1519276 A GB1519276 A GB 1519276A
Authority
GB
United Kingdom
Prior art keywords
hydraulic fluid
efficiency
fluid displacement
fluid
change
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB11632/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOEFFLINGER W
Original Assignee
HOEFFLINGER W
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
Priority claimed from DE19762654307 external-priority patent/DE2654307C3/en
Application filed by HOEFFLINGER W filed Critical HOEFFLINGER W
Publication of GB1519276A publication Critical patent/GB1519276A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/26—Devices for measuring efficiency, i.e. the ratio of power output to power input
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/10—Inlet temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/11—Outlet temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/11—Outlet temperature
    • F04B2205/111—Outlet temperature after a throttle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Measuring Fluid Pressure (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

1519276 Testing pumps W HOFFLINGER 18 March 1977 [30 Nov 1976 (2)] 11632/77 Heading F1A Apparatus for evaluating the efficiency of an hydraulic fluid displacement device 1, e.g. a positive-displacement pump or motor, comprises an hydraulic circuit connected between the high and low-pressure sides of the device, means in the circuit, e.g. a throttle 8 for effecting a substantially isenthalpic change of state of the fluid, another means, e.g. an expansion/compression arrangement 7, for effecting a substantially isentropic change of state of the fluid on one side of the isenthalpic change means, and first, second and third sensors A, B, C for measuring the temperature at the lowpressure side, at the isentropic change means and on the other side of the isenthalpic change means, respectively. An electronic circuit is described for processing the sensor outputs and displaying the efficiency reading.
GB11632/77A 1976-11-30 1977-03-18 Apparatus for evaluating efficiency of hydraulic fluid displacement devices Expired GB1519276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19762654307 DE2654307C3 (en) 1976-11-30 1976-11-30 Device for direct thermodynamic efficiency determinations on hydrostatic displacement machines
DE2654315 1976-11-30

Publications (1)

Publication Number Publication Date
GB1519276A true GB1519276A (en) 1978-07-26

Family

ID=25771203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11632/77A Expired GB1519276A (en) 1976-11-30 1977-03-18 Apparatus for evaluating efficiency of hydraulic fluid displacement devices

Country Status (6)

Country Link
JP (1) JPS5369901A (en)
CH (1) CH601782A5 (en)
DD (1) DD128773A5 (en)
FR (1) FR2372422A1 (en)
GB (1) GB1519276A (en)
SE (1) SE7703050L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101603559B (en) * 2009-06-25 2011-10-19 三一重工股份有限公司 Method and device for detecting efficiency parameters of hydraulic system and engineering machinery having the device
CN110500290A (en) * 2019-08-26 2019-11-26 江苏泽霖节能科技有限公司 A kind of method that pump housing energy conservation is promoted

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335862A1 (en) * 1983-10-03 1985-04-18 Robert Bosch Gmbh, 7000 Stuttgart HYDROSTATIC MACHINE (PUMP OR MOTOR)
NL1012606C2 (en) * 1999-07-15 2001-01-16 Sun Electric Systems Bv Method and device for evaluating a hydraulic system.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101603559B (en) * 2009-06-25 2011-10-19 三一重工股份有限公司 Method and device for detecting efficiency parameters of hydraulic system and engineering machinery having the device
CN110500290A (en) * 2019-08-26 2019-11-26 江苏泽霖节能科技有限公司 A kind of method that pump housing energy conservation is promoted

Also Published As

Publication number Publication date
SE7703050L (en) 1978-05-31
CH601782A5 (en) 1978-07-14
FR2372422A1 (en) 1978-06-23
JPS5369901A (en) 1978-06-21
DD128773A5 (en) 1977-12-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee