GB1082708A - Fluid-flow control valve - Google Patents

Fluid-flow control valve

Info

Publication number
GB1082708A
GB1082708A GB3499266A GB3499266A GB1082708A GB 1082708 A GB1082708 A GB 1082708A GB 3499266 A GB3499266 A GB 3499266A GB 3499266 A GB3499266 A GB 3499266A GB 1082708 A GB1082708 A GB 1082708A
Authority
GB
United Kingdom
Prior art keywords
valve
motor
flow
piston
ports
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
GB3499266A
Inventor
Louis George Hajma
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.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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 Parker Hannifin Corp filed Critical Parker Hannifin Corp
Priority to GB3499266A priority Critical patent/GB1082708A/en
Publication of GB1082708A publication Critical patent/GB1082708A/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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

Abstract

1,082,708. Valves. PARKER-HANNIFIN CORPORATION. Aug. 4, 1966, No. 34992/66. Heading F2V. A valve controlling the flow and exhaust of fluid to and from the opposite ends of a motor 4 comprises a spool valve 21 reciprocable in a bore to control the connection of motor ports 15 to supply and exhaust ports 11, 19. The valve lands have notches 28, 29 to regulate the flow. The two ports 15 are connected to the opposite ends of the motor through check valves 35, 36. The valve 36 co-operates with a seat 34 and has a through port controlled by a pilot valve 41, the valve 36 controlling the flow from the lower end of the motor which, due to the load, may be under a high pressure. When the spool 21 is moved upwards, the supply is connected to the upper port 15 and flow takes place past the valve 35 to the motor. When the pressure rises sufficiently, a piston 45 is moved down to cause a rod 46 to open the pilot valve 41. As the piston 45 moves further down, the rod 46 engages the valve 36 and moves this valve to open a port 40 and allow added flow from the lower end of the motor. The piston parts 47 of piston 45 engage in sleeves 31 to provide a dash-pot effect to prevent chattering.
GB3499266A 1966-08-04 1966-08-04 Fluid-flow control valve Expired GB1082708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3499266A GB1082708A (en) 1966-08-04 1966-08-04 Fluid-flow control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3499266A GB1082708A (en) 1966-08-04 1966-08-04 Fluid-flow control valve

Publications (1)

Publication Number Publication Date
GB1082708A true GB1082708A (en) 1967-09-13

Family

ID=10372528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3499266A Expired GB1082708A (en) 1966-08-04 1966-08-04 Fluid-flow control valve

Country Status (1)

Country Link
GB (1) GB1082708A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141524A (en) * 1983-06-13 1984-12-19 Koehring Co Sectional valve with independent pump and function control spools
GB2264996A (en) * 1992-03-13 1993-09-15 John Burdon Pressurised-fluid valve assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141524A (en) * 1983-06-13 1984-12-19 Koehring Co Sectional valve with independent pump and function control spools
GB2264996A (en) * 1992-03-13 1993-09-15 John Burdon Pressurised-fluid valve assembly

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