GB727976A - Improvements in and relating to pilot-operated directional control valves - Google Patents

Improvements in and relating to pilot-operated directional control valves

Info

Publication number
GB727976A
GB727976A GB2897151A GB2897151A GB727976A GB 727976 A GB727976 A GB 727976A GB 2897151 A GB2897151 A GB 2897151A GB 2897151 A GB2897151 A GB 2897151A GB 727976 A GB727976 A GB 727976A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure liquid
ports
rams
exhaust
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
GB2897151A
Other languages
English (en)
Inventor
John Maurice Towler
Frank Hathorn Towler
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.)
Electraulic Presses Ltd
Original Assignee
Electraulic Presses 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
Priority to BE516162D priority Critical patent/BE516162A/xx
Application filed by Electraulic Presses Ltd filed Critical Electraulic Presses Ltd
Priority to GB2897151A priority patent/GB727976A/en
Publication of GB727976A publication Critical patent/GB727976A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B30B15/183—Controlling the filling of the press cylinder during the approach stroke of the ram, e.g. prefill-valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Presses (AREA)
  • Fluid-Pressure Circuits (AREA)
GB2897151A 1951-12-11 1951-12-11 Improvements in and relating to pilot-operated directional control valves Expired GB727976A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE516162D BE516162A (enrdf_load_stackoverflow) 1951-12-11
GB2897151A GB727976A (en) 1951-12-11 1951-12-11 Improvements in and relating to pilot-operated directional control valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2897151A GB727976A (en) 1951-12-11 1951-12-11 Improvements in and relating to pilot-operated directional control valves

Publications (1)

Publication Number Publication Date
GB727976A true GB727976A (en) 1955-04-13

Family

ID=10284154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2897151A Expired GB727976A (en) 1951-12-11 1951-12-11 Improvements in and relating to pilot-operated directional control valves

Country Status (2)

Country Link
BE (1) BE516162A (enrdf_load_stackoverflow)
GB (1) GB727976A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135169A (en) * 1961-06-08 1964-06-02 Danly Mach Specialties Inc Self-contained die cushion
GB2201227A (en) * 1987-02-18 1988-08-24 Ferranti Plc Hydraulic valve
CN114439802A (zh) * 2022-01-29 2022-05-06 浙江海宏液压科技股份有限公司 一种充液阀的压力控制结构
CN116592010A (zh) * 2023-06-09 2023-08-15 无锡气动技术研究所有限公司 一种气缸用手拉阀

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135169A (en) * 1961-06-08 1964-06-02 Danly Mach Specialties Inc Self-contained die cushion
GB2201227A (en) * 1987-02-18 1988-08-24 Ferranti Plc Hydraulic valve
US4848404A (en) * 1987-02-18 1989-07-18 Doyle Hickok Hydraulic valve
GB2201227B (en) * 1987-02-18 1991-05-22 Ferranti Plc Hydraulic valve
CN114439802A (zh) * 2022-01-29 2022-05-06 浙江海宏液压科技股份有限公司 一种充液阀的压力控制结构
CN114439802B (zh) * 2022-01-29 2022-07-26 浙江海宏液压科技股份有限公司 一种充液阀的压力控制结构
CN116592010A (zh) * 2023-06-09 2023-08-15 无锡气动技术研究所有限公司 一种气缸用手拉阀

Also Published As

Publication number Publication date
BE516162A (enrdf_load_stackoverflow)

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