GB1200911A - Improvements in hydraulic flow controllers - Google Patents

Improvements in hydraulic flow controllers

Info

Publication number
GB1200911A
GB1200911A GB874467A GB874467A GB1200911A GB 1200911 A GB1200911 A GB 1200911A GB 874467 A GB874467 A GB 874467A GB 874467 A GB874467 A GB 874467A GB 1200911 A GB1200911 A GB 1200911A
Authority
GB
United Kingdom
Prior art keywords
feb
shaft
flow controllers
hydraulic flow
orifice
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
GB874467A
Inventor
Malcolm Thorneycroft
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.)
CHARLES CHURCHILL Ltd
Original Assignee
CHARLES CHURCHILL 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 CHARLES CHURCHILL Ltd filed Critical CHARLES CHURCHILL Ltd
Priority to GB874467A priority Critical patent/GB1200911A/en
Publication of GB1200911A publication Critical patent/GB1200911A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1472—Control of position or direction using feedback using an analogue comparing device with potentiometer
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/202—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/18—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)

Abstract

1,200,911. Valves. CHARLES CHURCHILL Ltd. 23 Feb., 1968 [23 Feb., 1967], No. 8744/67. Heading F2V. [Also in Division G1] An hydraulic valve unit 13 (Fig. 2) determining the rate of flow of liquid to an hydraulic machine has a metering orifice 10 adjustable by an electric motor 11 through shaft 23, gear 24 and shaft 25. The unit includes a pressure compensating valve 29 with a spring-loaded spool 30, maintaining a constant pressure drop across the orifice. A feedback duct 35 compensates for changes in load or fluid supply pressure.
GB874467A 1967-02-23 1967-02-23 Improvements in hydraulic flow controllers Expired GB1200911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB874467A GB1200911A (en) 1967-02-23 1967-02-23 Improvements in hydraulic flow controllers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB874467A GB1200911A (en) 1967-02-23 1967-02-23 Improvements in hydraulic flow controllers

Publications (1)

Publication Number Publication Date
GB1200911A true GB1200911A (en) 1970-08-05

Family

ID=9858441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB874467A Expired GB1200911A (en) 1967-02-23 1967-02-23 Improvements in hydraulic flow controllers

Country Status (1)

Country Link
GB (1) GB1200911A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121990A (en) * 1982-06-15 1984-01-04 William Richards Price A hydraulic control system
GB2138969A (en) * 1983-04-19 1984-10-31 Ishikawajima Harima Heavy Ind Direct drive electro-hydraulic servo valves
DE3702959A1 (en) * 1987-01-31 1988-08-11 Draegerwerk Ag PRESSURE REGULATOR WITH ADJUSTABLE OUTLET PRESSURE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121990A (en) * 1982-06-15 1984-01-04 William Richards Price A hydraulic control system
GB2138969A (en) * 1983-04-19 1984-10-31 Ishikawajima Harima Heavy Ind Direct drive electro-hydraulic servo valves
DE3702959A1 (en) * 1987-01-31 1988-08-11 Draegerwerk Ag PRESSURE REGULATOR WITH ADJUSTABLE OUTLET PRESSURE

Similar Documents

Publication Publication Date Title
SE7714513L (en) HYDRAULIC CONTROL DEVICE
GB1111536A (en) Means for distributing flowing media
GB1293550A (en) Improvements in and relating to control valves
GB925689A (en) Fluid flow divider
ES8104508A1 (en) High-pressure pump with pressure regulator
GB1309162A (en) Fluid flow-regulating valves
GB1275947A (en) Pump control system
GB1235770A (en) Volumetric metering pump
GB1200911A (en) Improvements in hydraulic flow controllers
GB959878A (en) Fluid pressure system and control
GB1269724A (en) Automatic flow control valve
GB790626A (en) Apparatus for maintaining a predetermined relationship between the speeds of two independently driven members
GB928657A (en) Hydraulic transmission with low speed slip compensation
GB1122219A (en) Fluid flow control valves
GB1274122A (en) Fluid control
GB1290376A (en)
GB1128895A (en) Improvements in or relating to bearings for movable members
GB1374128A (en) Fluid flow control valve
GB959956A (en) Flow control valve
GB1126993A (en) Viscosity independent hydraulic flow regulator
GB918122A (en) Pump assembly
GB1196587A (en) Improvements in or Relating to Pressure Regulating Devices
GB914746A (en) Flow control system
US2672730A (en) Viscosity change compensation for hydraulic feed systems
GB1307767A (en) Fluid flow control devices for pressure mediums

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees