ES2005670A6 - Un conmutador activado por diferencia de presion. - Google Patents

Un conmutador activado por diferencia de presion.

Info

Publication number
ES2005670A6
ES2005670A6 ES8703147A ES8703147A ES2005670A6 ES 2005670 A6 ES2005670 A6 ES 2005670A6 ES 8703147 A ES8703147 A ES 8703147A ES 8703147 A ES8703147 A ES 8703147A ES 2005670 A6 ES2005670 A6 ES 2005670A6
Authority
ES
Spain
Prior art keywords
pressure
piston
housing
switch
differential
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
ES8703147A
Other languages
English (en)
Inventor
G Emerson Brown
Richard T Hendrickson
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.)
Allied Corp
Original Assignee
Allied 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 Allied Corp filed Critical Allied Corp
Publication of ES2005670A6 publication Critical patent/ES2005670A6/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S303/00—Fluid-pressure and analogous brake systems
    • Y10S303/02—Brake control by pressure comparison
    • Y10S303/03—Electrical pressure sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

UN CONMUTADOR ACTIVADO POR DIFERENCIA DE PRESION INCLUYE UN ALOJAMIENTO QUE LLEVA UN CONJUNTO CONMUTADOR QUE ES ACCIONADO POR EL MOVIMIENTO DE UN PISTON SENSIBLE A UNA DIFERENCIA DE PRESION, DESPLAZABLE DENTRO DEL ALOJAMIENTO. EL PISTON SE DESPLAZA EN RESPUESTA A DIFERENCIAS DE PRESION ENTRE LOS NIVELES DE PRESION EN LAS CAMARAS DEFINIDAS ENTRE LOS EXTREMOS DEL PISTON Y LOS CORRESPONDIENTES EXTREMOS DEL ALOJAMIENTO. EL PISTON INCLUYE UN TOPE SENSIBLE A LA PRESION QUE RESPONDE A NIVELES DE PRESION POR ENCIMA DE UN NIVEL DE PRESION PREDETERMINADO, PARA ACOPLARSE CON EL ALOJAMIENTO E IMPEDIR ASI EL DESPLAZAMIENTO DEL PISTON Y EL ACCIONAMIENTO DEL CONJUNTO CONMUTADOR INDEPENDIENTEMENTE DE LA DIFERENCIA DE PRESION EXISTENTE DE UN LADO A OTRO DEL PISTON, LIMITANDO CON ELLO LA OPERACION DEL CONMUTADOR ACTIVADO POR PRESION A NIVELES DE PRESION POR DEBAJO DEL NIVEL DE PRESION MAXIMA PREDETERMINADO.
ES8703147A 1986-11-03 1987-11-03 Un conmutador activado por diferencia de presion. Expired ES2005670A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/926,150 US4736990A (en) 1986-11-03 1986-11-03 Pressure limited differential pressure switch

Publications (1)

Publication Number Publication Date
ES2005670A6 true ES2005670A6 (es) 1989-03-16

Family

ID=25452820

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8703147A Expired ES2005670A6 (es) 1986-11-03 1987-11-03 Un conmutador activado por diferencia de presion.

Country Status (7)

Country Link
US (1) US4736990A (es)
EP (1) EP0329688B1 (es)
JP (1) JPH07107821B2 (es)
CA (1) CA1281755C (es)
DE (1) DE3784073T2 (es)
ES (1) ES2005670A6 (es)
WO (1) WO1988003701A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819459A1 (de) * 1988-06-08 1989-12-14 Festo Kg Druckgesteuerte elektrische schalteinheit
US5046313A (en) * 1989-07-27 1991-09-10 Allied-Signal Inc. Master cylinder with fluid level and pressure failure detection
US4936334A (en) * 1989-09-29 1990-06-26 Allied-Signal Inc. Differential pressure shuttle valve
US5169212A (en) * 1990-12-21 1992-12-08 Ford Motor Company Reversible proportioning valve
US5251967A (en) * 1992-03-25 1993-10-12 Allied-Signal Inc. Fluid pressure braking system with low pressure warning mechanism
US7786392B2 (en) * 2008-03-17 2010-08-31 Honeywell International Inc. Self-cleaning pressure switch with a self-sealing diaphragm

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416315A (en) * 1967-04-10 1968-12-17 Bendix Corp Brake system failure warning device
US3492051A (en) * 1968-04-25 1970-01-27 Wagner Electric Corp Control valve
US3700286A (en) * 1970-03-26 1972-10-24 Wagner Electric Corp Control valve
FR2186375B1 (es) * 1971-01-15 1976-06-18 Dba
FR2261913B1 (es) * 1974-02-25 1977-09-16 Peugeot & Renault
DE2915865A1 (de) * 1979-04-19 1980-11-13 Teves Gmbh Alfred Zweikreisdruckregler
US4281880A (en) * 1979-10-01 1981-08-04 The Bendix Corporation Back-to-back proportioning valve
US4604866A (en) * 1984-09-06 1986-08-12 Allied Corporation Master cylinder

Also Published As

Publication number Publication date
EP0329688B1 (en) 1993-02-03
JPH07107821B2 (ja) 1995-11-15
US4736990A (en) 1988-04-12
WO1988003701A1 (en) 1988-05-19
DE3784073D1 (de) 1993-03-18
JPH02501339A (ja) 1990-05-10
EP0329688A1 (en) 1989-08-30
DE3784073T2 (de) 1993-08-19
CA1281755C (en) 1991-03-19

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2007-11-03

FD1A Patent lapsed

Effective date: 20010402