GB1288525A - - Google Patents

Info

Publication number
GB1288525A
GB1288525A GB1288525DA GB1288525A GB 1288525 A GB1288525 A GB 1288525A GB 1288525D A GB1288525D A GB 1288525DA GB 1288525 A GB1288525 A GB 1288525A
Authority
GB
United Kingdom
Prior art keywords
input
pressure
supply
seat
spring
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
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 filed Critical
Publication of GB1288525A publication Critical patent/GB1288525A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C3/00—Circuit elements having moving parts
    • F15C3/04—Circuit elements having moving parts using diaphragms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2365—Plural series units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

1288525 Valves BECKMAN INSTRUMENTS Inc 4 May 1971 [1 June 1970] 12987/71 Heading F2V [Also in Division G3] A relay valve has a loose ball 46 positioned relative to a supply seat 80 and an exhaust seat 54 by a rod 36 operatively connected to a diaphragm 22 which is moved according to input pressure Pc in chamber 26 so as to give an output pressure Po in inverse proportion to the input. Supply pressure Ps in bore 14 of the supply seat communicates with the input via a restriction 58 and the position of a flapper 60 determines the input pressure. Supply seat 80 is spring-loaded within an outer sleeve 64 which is screwthreaded in the valve body to vary the gain. Conical bore 84 and a complementary portion on the rod 36 act as an exhaust throttle while spring 56 supplements the natural spring bias of diaphragm 22.
GB1288525D 1970-06-01 1971-05-04 Expired GB1288525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4237770A 1970-06-01 1970-06-01

Publications (1)

Publication Number Publication Date
GB1288525A true GB1288525A (en) 1972-09-13

Family

ID=21921592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288525D Expired GB1288525A (en) 1970-06-01 1971-05-04

Country Status (3)

Country Link
US (1) US3683968A (en)
DE (1) DE2126794A1 (en)
GB (1) GB1288525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476893A (en) * 1980-07-04 1984-10-16 Barmag Barmer Maschinenfabrik Ag Hydraulic flow control valve
AT385137B (en) * 1983-07-19 1988-02-25 Enfo Grundlagen Forschungs Ag NEGATIVE PRESSURE AMPLIFIER

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930515A (en) * 1974-07-22 1976-01-06 Robertshaw Controls Company Pneumatic control system and valve construction therefor or the like
US5895174A (en) * 1997-03-03 1999-04-20 Beaver; George M. Beach replenishment system
DE102007062207B4 (en) * 2007-12-21 2010-08-19 Samson Ag Pneumatic amplifier and arrangement for setting a control armature of a process plant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1992048A (en) * 1932-12-12 1935-02-19 Cash A W Co Controller
US2980075A (en) * 1959-03-02 1961-04-18 Hagan Chemicals & Controls Inc Diaphragm equalizing means and valve assemblies for totalizers
US3105508A (en) * 1960-03-29 1963-10-01 Foxboro Co Pneumatic relay
FR1363896A (en) * 1962-12-21 1964-06-19 Electro Chimie Soc D Variable setpoint scale
US3456669A (en) * 1966-10-20 1969-07-22 Fisher Governor Co Piezoelectric transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476893A (en) * 1980-07-04 1984-10-16 Barmag Barmer Maschinenfabrik Ag Hydraulic flow control valve
AT385137B (en) * 1983-07-19 1988-02-25 Enfo Grundlagen Forschungs Ag NEGATIVE PRESSURE AMPLIFIER

Also Published As

Publication number Publication date
DE2126794A1 (en) 1971-12-16
US3683968A (en) 1972-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees