GB885256A - Improvements in liquid flow control valve apparatus - Google Patents

Improvements in liquid flow control valve apparatus

Info

Publication number
GB885256A
GB885256A GB1500757A GB1500757A GB885256A GB 885256 A GB885256 A GB 885256A GB 1500757 A GB1500757 A GB 1500757A GB 1500757 A GB1500757 A GB 1500757A GB 885256 A GB885256 A GB 885256A
Authority
GB
United Kingdom
Prior art keywords
closure
flow
outlet
outlets
inlet
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
GB1500757A
Inventor
Eric Hider Bowers
Oswald Thoma
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.)
Dowty Hydraulic Units Ltd
Original Assignee
Dowty Hydraulic Units 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 Dowty Hydraulic Units Ltd filed Critical Dowty Hydraulic Units Ltd
Priority to GB1500757A priority Critical patent/GB885256A/en
Publication of GB885256A publication Critical patent/GB885256A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/022—Flow-dividers; Priority valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Gearings (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

885,256. Valves. DOWTY HYDRAULIC UNITS Ltd. May 8, 1958 [May 10, 1957], No. 15007/57. Class 135. A liquid-flow dividing device has an inlet 28 and two outlets 19, 21 and when the flow rate into the inlet is small the liquid divides and passes through restrictions 29, 31, one on each side of a partition 8 intermediate a hollow closure member 3, each stream passing via the interior 6, 7 of the closure, annular spaces 16, 17 to the outlets 19, 21, respectively. If one flow, say that through outlet 19, increases the pressure drop across restriction 29 exceeds that across restriction 31 thus causing leftward movement of the closure 3, the end 9 thereof approaching a seat 43 in an end cap 14 thereby adding a further restriction in the flow path to the outlet 19. Since this movement of the closure 3 compresses a preloaded spring 25 a new position of equilibrium obtains in which the pressure on the right of the partition 8 will be greater than that on the left whilst the flow through outlet 21 will be smaller than that through 19. The reverse movement of the closure 3 will occur should the flow through outlet 21 become greater than that through outlet 19. When the flow rate into the inlet 28 increases non-return valves 34, 35 are unseated from flanges 4, 5 on the closure 3 to provide additional paths in parallel with the restrictions 29, 31, each additional path comprising openings 32, 33, and 41, 42, in the flanges and closure member, respectively. Any disparity in the flow to the outlets being corrected by movement of the closure 3 as described above. The valves 34, 35 are loaded by springs 36, 37 that abut circlips attached to the closure 3. The device may be used in an hydraulic power transmission system for a vehicle such as a tractor, the output from an engine-driven variable displacement pump being supplied to the inlet 28 and the outlets 19, 21, each being connected to a motor driving the two groundengaging driving wheels of the tractor.
GB1500757A 1957-05-10 1957-05-10 Improvements in liquid flow control valve apparatus Expired GB885256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1500757A GB885256A (en) 1957-05-10 1957-05-10 Improvements in liquid flow control valve apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1500757A GB885256A (en) 1957-05-10 1957-05-10 Improvements in liquid flow control valve apparatus

Publications (1)

Publication Number Publication Date
GB885256A true GB885256A (en) 1961-12-20

Family

ID=10051427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1500757A Expired GB885256A (en) 1957-05-10 1957-05-10 Improvements in liquid flow control valve apparatus

Country Status (1)

Country Link
GB (1) GB885256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136536A (en) * 1983-02-01 1984-09-19 Danuvia Koezponti Szerszam Hydraulic differential locking device with a changeable range of unsensitiveness
WO2020021278A1 (en) * 2018-07-26 2020-01-30 Kozlowski Lukasz Flow balancing in a fluid cooling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136536A (en) * 1983-02-01 1984-09-19 Danuvia Koezponti Szerszam Hydraulic differential locking device with a changeable range of unsensitiveness
WO2020021278A1 (en) * 2018-07-26 2020-01-30 Kozlowski Lukasz Flow balancing in a fluid cooling system

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