GB1466059A - Valves and hydraulic circuits - Google Patents

Valves and hydraulic circuits

Info

Publication number
GB1466059A
GB1466059A GB105973A GB105973A GB1466059A GB 1466059 A GB1466059 A GB 1466059A GB 105973 A GB105973 A GB 105973A GB 105973 A GB105973 A GB 105973A GB 1466059 A GB1466059 A GB 1466059A
Authority
GB
United Kingdom
Prior art keywords
valves
hydraulic circuits
spool
pistons
controlled
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
GB105973A
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.)
PRESSURE DYNAMICS Ltd
Original Assignee
PRESSURE DYNAMICS 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 PRESSURE DYNAMICS Ltd filed Critical PRESSURE DYNAMICS Ltd
Priority to GB105973A priority Critical patent/GB1466059A/en
Publication of GB1466059A publication Critical patent/GB1466059A/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
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops
    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0413—Valve members; Fluid interconnections therefor with four or more positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Servomotors (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

1466059 Valves PRESSURE DYNAMICS Ltd 8 April 1974 [9 Jan 1973] 1059/73 Heading F2V [Also in Division F1] In a four-position spool valve Fig. 1, the position of the spool 11 is controlled by pistons 17, 18 which are controlled by solenoid-operated pilot valves. Adjustable stops 31, 32 are provided for the pistons 17, 18. Figs. 2-5 (not shown), illustrate the four positions of the spool.
GB105973A 1974-04-08 1974-04-08 Valves and hydraulic circuits Expired GB1466059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB105973A GB1466059A (en) 1974-04-08 1974-04-08 Valves and hydraulic circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB105973A GB1466059A (en) 1974-04-08 1974-04-08 Valves and hydraulic circuits

Publications (1)

Publication Number Publication Date
GB1466059A true GB1466059A (en) 1977-03-02

Family

ID=9715465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB105973A Expired GB1466059A (en) 1974-04-08 1974-04-08 Valves and hydraulic circuits

Country Status (1)

Country Link
GB (1) GB1466059A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926354A3 (en) * 1997-12-16 2000-03-29 Smc Corporation Solenoid-controlled pilot-operated three-position switching valve
EP4074987A1 (en) * 2021-04-15 2022-10-19 SMC Corporation Four-position switching valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926354A3 (en) * 1997-12-16 2000-03-29 Smc Corporation Solenoid-controlled pilot-operated three-position switching valve
EP4074987A1 (en) * 2021-04-15 2022-10-19 SMC Corporation Four-position switching valve
US11680650B2 (en) 2021-04-15 2023-06-20 Smc Corporation Four-position switching valve

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Legal Events

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