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EP0084215A3 - Improvements in or relating to control of pneumatic motors - Google Patents

Improvements in or relating to control of pneumatic motors Download PDF

Info

Publication number
EP0084215A3
EP0084215A3 EP82305235A EP82305235A EP0084215A3 EP 0084215 A3 EP0084215 A3 EP 0084215A3 EP 82305235 A EP82305235 A EP 82305235A EP 82305235 A EP82305235 A EP 82305235A EP 0084215 A3 EP0084215 A3 EP 0084215A3
Authority
EP
European Patent Office
Prior art keywords
connection
control
relating
spool
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.)
Withdrawn
Application number
EP82305235A
Other languages
German (de)
French (fr)
Other versions
EP0084215A2 (en
Inventor
John Edward Garrard
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.)
JH Fenner and Co Ltd
Original Assignee
JH Fenner and Co 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 JH Fenner and Co Ltd filed Critical JH Fenner and Co Ltd
Publication of EP0084215A2 publication Critical patent/EP0084215A2/en
Publication of EP0084215A3 publication Critical patent/EP0084215A3/en
Withdrawn legal-status Critical Current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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

A control unit for the remote control of a pneumatic motor main valve, the unit having a spool which controls the connection of an output connection to a main supply connection or to exhaust. In order to provide an improved response over the entire movement range of the valve a fixed orifice is provided between the main supply connection (21) and the output connection (23) and a variable orifice is provided between the output connection (23) and exhaust. The fixed and variable orifices are formed by parallel (15) and tapered (13) portions respectively on the spool.
EP82305235A 1981-10-02 1982-10-01 Improvements in or relating to control of pneumatic motors Withdrawn EP0084215A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8129861 1981-10-02
GB8129861 1981-10-02

Publications (2)

Publication Number Publication Date
EP0084215A2 EP0084215A2 (en) 1983-07-27
EP0084215A3 true EP0084215A3 (en) 1984-01-04

Family

ID=10524921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305235A Withdrawn EP0084215A3 (en) 1981-10-02 1982-10-01 Improvements in or relating to control of pneumatic motors

Country Status (2)

Country Link
EP (1) EP0084215A3 (en)
JP (1) JPS5878991A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263532A (en) * 1992-01-24 1993-07-28 Hodge Clemco Ltd Automatic shut-off valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1328037A (en) * 1962-06-04 1963-05-24 Zahnradfabrik Friedrichshafen Stepped-turned-edge distribution unit usable in hydraulic installations

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1328037A (en) * 1962-06-04 1963-05-24 Zahnradfabrik Friedrichshafen Stepped-turned-edge distribution unit usable in hydraulic installations

Also Published As

Publication number Publication date
JPS5878991A (en) 1983-05-12
EP0084215A2 (en) 1983-07-27

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840320

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19850528

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GARRARD, JOHN EDWARD