GB897699A - Improvements in fluid pressure control systems - Google Patents

Improvements in fluid pressure control systems

Info

Publication number
GB897699A
GB897699A GB1954858A GB1954858A GB897699A GB 897699 A GB897699 A GB 897699A GB 1954858 A GB1954858 A GB 1954858A GB 1954858 A GB1954858 A GB 1954858A GB 897699 A GB897699 A GB 897699A
Authority
GB
United Kingdom
Prior art keywords
pressure
nozzles
torsion
control
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
Application number
GB1954858A
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.)
Samson Apparatebau AG
Original Assignee
Samson Apparatebau AG
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 Samson Apparatebau AG filed Critical Samson Apparatebau AG
Publication of GB897699A publication Critical patent/GB897699A/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
    • 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
    • F15B9/06—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 means using a fluid jet
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/44—Automatic controllers pneumatic only
    • G05B11/48—Automatic controllers pneumatic only with auxiliary power
    • G05B11/50—Automatic controllers pneumatic only with auxiliary power in which the output signal represents a continuous function of the deviation from the desired value, i.e. continuous controllers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

897,699. Fluid-pressure servomotor-control systems. SAMSON APPARATEBAU A.G. June 18, 1958 [June 18, 1957], No. 19548/58. Addition to 794,108. Class 135. In a fluid-pressure servomotor control system as described in the parent Specification in which a feed-back connection between the stem of a diaphragm-actuated valve and a pressureresponsive device subjected to a variable control pressure includes a torsion-rod, the relay valve actuated by the pressure-responsive device to control the pressure in the diaphragm chamber, comprises a pair of nozzles 29, 30, Fig. 5, normally closed by a nozzle closure flap tiltable about one or other of the nozzles to open one or other of the nozzles. The flap 31 is supported on a substantially U-shaped torsion leaf-spring 34, Fig. 4, mounted on a pivotally-mounted control shaft 35, which carries a lever 38, connected by a wire 39, Fig. 2, to a further lever 7. The lever 7 is secured to the base-plate 9 of a bellows unit 10 to which a variable control pressure is admitted through a pipe-connection 13, and to one end of the torsion-rod 2 in the form of a flat band-spring mounted in a tubular extension 1 of a housing 4 enclosing the various parts. The other end of the torsion-rod 2 is adjustably connected to a lever 20 which in turn is operatively connected to the valve stem of the diaphragmactuated valve. The outlets from the nozzles open into a chamber 28 connected to the diaphragm chamber, one of the nozzles being connected to a supply of compressed air and the other to atmosphere. Thus, depending upon the pressure in the bellows 10, the shift 35 rotates in one or other direction to vary the pressure in the diaphragm chamber and hence the flap 31 to control the amount of opening of the diaphragm-actuated valve. On movement of the valve stem, the levers 20, 7 and the torsion rod 2 re-adjust the position of the shaft 35 and thence the flap 31 with respect to the nozzles until equilibrium is restored.
GB1954858A 1957-06-18 1958-06-18 Improvements in fluid pressure control systems Expired GB897699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES53927A DE1155622B (en) 1957-06-18 1957-06-18 Pressure medium operated regulator with feedback

Publications (1)

Publication Number Publication Date
GB897699A true GB897699A (en) 1962-05-30

Family

ID=7489514

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3321054A Expired GB794108A (en) 1957-06-18 1954-11-16 Improvements in or relating to fluid-pressure systems for controlling the positions of valves
GB1954858A Expired GB897699A (en) 1957-06-18 1958-06-18 Improvements in fluid pressure control systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3321054A Expired GB794108A (en) 1957-06-18 1954-11-16 Improvements in or relating to fluid-pressure systems for controlling the positions of valves

Country Status (3)

Country Link
CH (1) CH409478A (en)
DE (1) DE1155622B (en)
GB (2) GB794108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0884481A3 (en) * 1997-06-09 2000-09-27 Bürkert Werke GmbH & Co. Pneumatic position controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0884481A3 (en) * 1997-06-09 2000-09-27 Bürkert Werke GmbH & Co. Pneumatic position controller

Also Published As

Publication number Publication date
GB794108A (en) 1958-04-30
DE1155622B (en) 1963-10-10
CH409478A (en) 1966-03-15

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