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GB2171778B - Hydraulic valve block for determining the operational condition of hydraulic circuits - Google Patents

Hydraulic valve block for determining the operational condition of hydraulic circuits

Info

Publication number
GB2171778B
GB2171778B GB08505333A GB8505333A GB2171778B GB 2171778 B GB2171778 B GB 2171778B GB 08505333 A GB08505333 A GB 08505333A GB 8505333 A GB8505333 A GB 8505333A GB 2171778 B GB2171778 B GB 2171778B
Authority
GB
United Kingdom
Prior art keywords
hydraulic
determining
valve block
operational condition
circuits
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
GB08505333A
Other versions
GB2171778A (en
GB8505333D0 (en
Inventor
Gordon Smith
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.)
University of Surrey
Original Assignee
University of Surrey
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 University of Surrey filed Critical University of Surrey
Priority to GB08505333A priority Critical patent/GB2171778B/en
Publication of GB8505333D0 publication Critical patent/GB8505333D0/en
Publication of GB2171778A publication Critical patent/GB2171778A/en
Application granted granted Critical
Publication of GB2171778B publication Critical patent/GB2171778B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
GB08505333A 1985-03-01 1985-03-01 Hydraulic valve block for determining the operational condition of hydraulic circuits Expired GB2171778B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08505333A GB2171778B (en) 1985-03-01 1985-03-01 Hydraulic valve block for determining the operational condition of hydraulic circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08505333A GB2171778B (en) 1985-03-01 1985-03-01 Hydraulic valve block for determining the operational condition of hydraulic circuits

Publications (3)

Publication Number Publication Date
GB8505333D0 GB8505333D0 (en) 1985-04-03
GB2171778A GB2171778A (en) 1986-09-03
GB2171778B true GB2171778B (en) 1988-11-30

Family

ID=10575291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08505333A Expired GB2171778B (en) 1985-03-01 1985-03-01 Hydraulic valve block for determining the operational condition of hydraulic circuits

Country Status (1)

Country Link
GB (1) GB2171778B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016046314A1 (en) * 2014-09-24 2016-03-31 Caterpillar Sarl Control valve diagnostic system in hydraulic circuit
JP6497739B2 (en) * 2014-09-24 2019-04-10 キャタピラー エス エー アール エル Fault diagnosis system for control valve in hydraulic circuit
JP6497738B2 (en) * 2015-06-25 2019-04-10 キャタピラー エス エー アール エル Fault diagnosis system for control valve in hydraulic circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701598A (en) * 1968-06-26 1972-10-31 Jay R Katchka Flow control device with pressure regulation
DE2329328C2 (en) * 1973-06-08 1985-03-28 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Automatic sequence valve
FR2318455A1 (en) * 1975-07-15 1977-02-11 Poclain Sa FLOW-BASED REGULATION DEVICE
SE439183B (en) * 1979-03-23 1985-06-03 Nordhydraulic Ab HYDRAULIC DIRECTION VALVE
JPS5872776A (en) * 1981-10-26 1983-04-30 Nissan Motor Co Ltd Down safety valve in fork lift

Also Published As

Publication number Publication date
GB2171778A (en) 1986-09-03
GB8505333D0 (en) 1985-04-03

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee