GB2230876B - Hydraulic control or testing apparatus - Google Patents

Hydraulic control or testing apparatus

Info

Publication number
GB2230876B
GB2230876B GB8909210A GB8909210A GB2230876B GB 2230876 B GB2230876 B GB 2230876B GB 8909210 A GB8909210 A GB 8909210A GB 8909210 A GB8909210 A GB 8909210A GB 2230876 B GB2230876 B GB 2230876B
Authority
GB
United Kingdom
Prior art keywords
hydraulic control
testing apparatus
testing
hydraulic
control
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 - Fee Related
Application number
GB8909210A
Other versions
GB8909210D0 (en
GB2230876A (en
Inventor
Christopher Howden
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.)
HOWDEN MACHINERY
Original Assignee
HOWDEN MACHINERY
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 HOWDEN MACHINERY filed Critical HOWDEN MACHINERY
Priority to GB8909210A priority Critical patent/GB2230876B/en
Publication of GB8909210D0 publication Critical patent/GB8909210D0/en
Publication of GB2230876A publication Critical patent/GB2230876A/en
Application granted granted Critical
Publication of GB2230876B publication Critical patent/GB2230876B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
    • G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • 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
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B2207/00—External parameters
    • F04B2207/01—Load in general
    • 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
    • F04B2207/00—External parameters
    • F04B2207/04—Settings
    • F04B2207/044—Settings of the rotational speed of the driving motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
GB8909210A 1989-04-22 1989-04-22 Hydraulic control or testing apparatus Expired - Fee Related GB2230876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8909210A GB2230876B (en) 1989-04-22 1989-04-22 Hydraulic control or testing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8909210A GB2230876B (en) 1989-04-22 1989-04-22 Hydraulic control or testing apparatus

Publications (3)

Publication Number Publication Date
GB8909210D0 GB8909210D0 (en) 1989-06-07
GB2230876A GB2230876A (en) 1990-10-31
GB2230876B true GB2230876B (en) 1993-04-07

Family

ID=10655553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8909210A Expired - Fee Related GB2230876B (en) 1989-04-22 1989-04-22 Hydraulic control or testing apparatus

Country Status (1)

Country Link
GB (1) GB2230876B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030107A1 (en) * 1990-09-22 1992-03-26 Steag Ag HYDRAULIC ACTUATOR FOR CONTROL AND CONTROL ARMATURES
JP5364323B2 (en) * 2008-09-12 2013-12-11 カヤバ工業株式会社 Cylinder device
SG11201705793TA (en) 2015-03-10 2017-08-30 Sonderhoff Eng Gmbh Method for compensating leakage losses and conveyor system for conveying a defined volume of a liquid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768261A (en) * 1972-11-06 1973-10-30 Harnischfeger Corp Control system for hoist testing apparatus
US3985467A (en) * 1975-05-27 1976-10-12 Milton Roy Company Constant pressure pump
GB1575441A (en) * 1976-02-05 1980-09-24 Hytec Ab Output regulation in hydraulic and pneumatic systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768261A (en) * 1972-11-06 1973-10-30 Harnischfeger Corp Control system for hoist testing apparatus
US3985467A (en) * 1975-05-27 1976-10-12 Milton Roy Company Constant pressure pump
GB1575441A (en) * 1976-02-05 1980-09-24 Hytec Ab Output regulation in hydraulic and pneumatic systems

Also Published As

Publication number Publication date
GB8909210D0 (en) 1989-06-07
GB2230876A (en) 1990-10-31

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Legal Events

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

Effective date: 19980422