GB2438938B - Pilot valve - Google Patents

Pilot valve

Info

Publication number
GB2438938B
GB2438938B GB0705620A GB0705620A GB2438938B GB 2438938 B GB2438938 B GB 2438938B GB 0705620 A GB0705620 A GB 0705620A GB 0705620 A GB0705620 A GB 0705620A GB 2438938 B GB2438938 B GB 2438938B
Authority
GB
United Kingdom
Prior art keywords
pilot valve
pilot
valve
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 - Fee Related
Application number
GB0705620A
Other versions
GB0705620D0 (en
GB2438938A (en
Inventor
John Henry May
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0809214A priority Critical patent/GB2448086B/en
Publication of GB0705620D0 publication Critical patent/GB0705620D0/en
Publication of GB2438938A publication Critical patent/GB2438938A/en
Application granted granted Critical
Publication of GB2438938B publication Critical patent/GB2438938B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Driven Valves (AREA)
  • Control Of Fluid Pressure (AREA)
GB0705620A 2006-03-24 2007-03-26 Pilot valve Expired - Fee Related GB2438938B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0809214A GB2448086B (en) 2007-03-26 2007-03-26 Pilot valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0605951A GB0605951D0 (en) 2006-03-24 2006-03-24 Pilot valve

Publications (3)

Publication Number Publication Date
GB0705620D0 GB0705620D0 (en) 2007-05-02
GB2438938A GB2438938A (en) 2007-12-12
GB2438938B true GB2438938B (en) 2008-09-24

Family

ID=36384129

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0605951A Ceased GB0605951D0 (en) 2006-03-24 2006-03-24 Pilot valve
GB0705620A Expired - Fee Related GB2438938B (en) 2006-03-24 2007-03-26 Pilot valve

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0605951A Ceased GB0605951D0 (en) 2006-03-24 2006-03-24 Pilot valve

Country Status (1)

Country Link
GB (2) GB0605951D0 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999023544A1 (en) * 1997-11-05 1999-05-14 Fluid Controls Uk Limited Pilot valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999023544A1 (en) * 1997-11-05 1999-05-14 Fluid Controls Uk Limited Pilot valve

Also Published As

Publication number Publication date
GB0605951D0 (en) 2006-05-03
GB0705620D0 (en) 2007-05-02
GB2438938A (en) 2007-12-12

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Legal Events

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

Effective date: 20160326