GB1140785A - Improvements relating to control systems - Google Patents

Improvements relating to control systems

Info

Publication number
GB1140785A
GB1140785A GB305967A GB305967A GB1140785A GB 1140785 A GB1140785 A GB 1140785A GB 305967 A GB305967 A GB 305967A GB 305967 A GB305967 A GB 305967A GB 1140785 A GB1140785 A GB 1140785A
Authority
GB
United Kingdom
Prior art keywords
flapper
nozzle
port
control systems
improvements relating
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
GB305967A
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.)
Sperry Corp
Original Assignee
Sperry Rand Corp
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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1140785A publication Critical patent/GB1140785A/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
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • F15B5/003—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities characterised by variation of the pressure in a nozzle or the like, e.g. nozzle-flapper system

Abstract

1,140,785. Fluid-pressure servomotor systems. SPERRY RAND CORP. June 30, 1967 [July 29, 1966], No. 30259/67. Heading G3P. An electro-hydraulic servovalve has a flapper 62 pivoted at 55 to one leg 56 of an angle bracket 42 mounted in housing 12 and retained by the threaded end 44 of nozzle fitting 34. The flapper is loaded by compression spring 60 and tension spring 72 and these springs provide a net bias urging the flapper against the nozzle. When the constant pressure supply is connected to port 22, the flapper is forced away from the nozzle to abut stop 68. The nozzle forms the core of electromagnet 30 and energization of the latter, regardless of the polarity of the current, causes attraction of the flapper towards the nozzle to restrict flow therefrom. The valve may control pressure applied to, or the flow of liquid to or from a hydraulic load connected to port 24.
GB305967A 1966-07-29 1967-06-30 Improvements relating to control systems Expired GB1140785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56881566A 1966-07-29 1966-07-29

Publications (1)

Publication Number Publication Date
GB1140785A true GB1140785A (en) 1969-01-22

Family

ID=24272856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB305967A Expired GB1140785A (en) 1966-07-29 1967-06-30 Improvements relating to control systems

Country Status (2)

Country Link
JP (1) JPS5026695B1 (en)
GB (1) GB1140785A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380762A1 (en) * 1988-12-07 1990-08-08 Alum Rock Technology Current to pressure transducer employing magnetic fluid with self-correcting nozzle
US4984600A (en) * 1989-09-29 1991-01-15 Alum Rock Technology Self correcting nozzle useful with current to pressure transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380762A1 (en) * 1988-12-07 1990-08-08 Alum Rock Technology Current to pressure transducer employing magnetic fluid with self-correcting nozzle
US4984600A (en) * 1989-09-29 1991-01-15 Alum Rock Technology Self correcting nozzle useful with current to pressure transducer

Also Published As

Publication number Publication date
JPS5026695B1 (en) 1975-09-02

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