ES308206A1 - Servo control mechanism for a valve closure member - Google Patents

Servo control mechanism for a valve closure member

Info

Publication number
ES308206A1
ES308206A1 ES0308206A ES308206A ES308206A1 ES 308206 A1 ES308206 A1 ES 308206A1 ES 0308206 A ES0308206 A ES 0308206A ES 308206 A ES308206 A ES 308206A ES 308206 A1 ES308206 A1 ES 308206A1
Authority
ES
Spain
Prior art keywords
spring
closure member
valve
lever
replaced
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
ES0308206A
Other languages
Spanish (es)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of ES308206A1 publication Critical patent/ES308206A1/en
Expired legal-status Critical Current

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
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • 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
    • G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
    • G05D16/185—Control of fluid pressure with auxiliary non-electric power derived from an external source using membranes within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Driven Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Nozzles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

In a control system for a valve of the type comprising a servomotor having a diaphragm 6 connected to the valve closure member 3 and acted upon by fluid supplied by a conduit 8 having a nozzle 10 controlled by a vane 11 carried by a lever 12 pivoted at 13 and acted upon by a control pressure via a bellows 14, the resilient means providing a feed-back link to the lever from the closure member has a spring rate which varies according to the position of the closure member. In Fig. the resilient means comprises a first spring 1 connected at its upper end to the lever and at its lower end to a second spring 2 carried on an arm 19 connected to the spindle 5 at the valve. The resilient means thus has a spring rate dependent upon the position of the valve closure member and consequently the relationship between the pressure supplied at 15 and the closure member position is non-linear. In the alternative arrangement of Fig.3a, (not shown) spring 1 is replaced by a rigid rod, whilst in Fig. 4, (not shown) spring 2 is replaced by two obliquely extending springs. In Fig. 5, (not shown) the centre spring and one of the oblique springs of Fig. 4 are combined and the other oblique spring is replaced by a rigid link.
ES0308206A 1964-01-30 1965-01-16 Servo control mechanism for a valve closure member Expired ES308206A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR962095A FR1391961A (en) 1964-01-30 1964-01-30 Control device for regulating valve

Publications (1)

Publication Number Publication Date
ES308206A1 true ES308206A1 (en) 1966-07-01

Family

ID=8822080

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0308206A Expired ES308206A1 (en) 1964-01-30 1965-01-16 Servo control mechanism for a valve closure member

Country Status (8)

Country Link
BE (1) BE657959A (en)
CH (1) CH427368A (en)
DE (1) DE1450504A1 (en)
ES (1) ES308206A1 (en)
FR (1) FR1391961A (en)
GB (1) GB1034142A (en)
LU (1) LU47749A1 (en)
NL (1) NL6500959A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511253A3 (en) * 2012-03-09 2012-12-15 Avl List Gmbh Arrangement for influencing a fluid flow
CN106051243B (en) * 2016-07-28 2018-08-31 上海交通大学 A kind of quick response safety valve using Nonlinear Adjustment spring

Also Published As

Publication number Publication date
FR1391961A (en) 1965-03-12
NL6500959A (en) 1965-08-02
LU47749A1 (en) 1965-03-08
CH427368A (en) 1966-12-31
BE657959A (en)
DE1450504A1 (en) 1968-12-05
GB1034142A (en) 1966-06-29

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