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EP0284948A3 - Pressure switch - Google Patents

Pressure switch Download PDF

Info

Publication number
EP0284948A3
EP0284948A3 EP88104525A EP88104525A EP0284948A3 EP 0284948 A3 EP0284948 A3 EP 0284948A3 EP 88104525 A EP88104525 A EP 88104525A EP 88104525 A EP88104525 A EP 88104525A EP 0284948 A3 EP0284948 A3 EP 0284948A3
Authority
EP
European Patent Office
Prior art keywords
pressure switch
plunger
microswitch
rocker
motion
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.)
Granted
Application number
EP88104525A
Other languages
German (de)
Other versions
EP0284948A2 (en
EP0284948B1 (en
Inventor
Hubert Franz Strzodka
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.)
Imo Industries GmbH
Original Assignee
DeLaval Turbine GmbH
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 DeLaval Turbine GmbH filed Critical DeLaval Turbine GmbH
Priority to AT88104525T priority Critical patent/ATE84909T1/en
Publication of EP0284948A2 publication Critical patent/EP0284948A2/en
Publication of EP0284948A3 publication Critical patent/EP0284948A3/en
Application granted granted Critical
Publication of EP0284948B1 publication Critical patent/EP0284948B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2628—Means for adjustment of "ON" or "OFF" operating pressure by varying the relative position of switch-casing and pressure sensitive element
    • 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
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2635—Means for adjustment of "ON" or "OFF" operating pressure by adjustment of a motion transmitting system

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Braking Systems And Boosters (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A pressure switch has a plunger, axially displaceable by the pressure being measured, which enables a contact pin of a microswitch to be actuated. Between the plunger and the contact pin there is arranged a rocker. The microswitch is fastened to the housing of the pressure switch so as to be displaceable in the main extension direction of the rocker. This provides a way to vary the step-up ratio between the plunger motion and the contact-pin motion, whereby the magnitude of the hysteresis of the pressure switch can be varied.
EP88104525A 1987-03-31 1988-03-22 Pressure switch Expired - Lifetime EP0284948B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104525T ATE84909T1 (en) 1987-03-31 1988-03-22 PRESSURE SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710645 1987-03-31
DE19873710645 DE3710645A1 (en) 1987-03-31 1987-03-31 PRESSURE SWITCH

Publications (3)

Publication Number Publication Date
EP0284948A2 EP0284948A2 (en) 1988-10-05
EP0284948A3 true EP0284948A3 (en) 1989-07-26
EP0284948B1 EP0284948B1 (en) 1993-01-20

Family

ID=6324437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104525A Expired - Lifetime EP0284948B1 (en) 1987-03-31 1988-03-22 Pressure switch

Country Status (4)

Country Link
US (1) US4827093A (en)
EP (1) EP0284948B1 (en)
AT (1) ATE84909T1 (en)
DE (2) DE3710645A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819459A1 (en) * 1988-06-08 1989-12-14 Festo Kg Pressure-controlled electrical switching unit
FR2638888A1 (en) * 1988-11-09 1990-05-11 Crouzet Sa IMPROVED ELECTRICAL SWITCHING DEVICE
DE3910837A1 (en) * 1989-04-04 1990-10-11 Imo Ind Gmbh ELECTRICAL SWITCHING DEVICE
JP2857173B2 (en) * 1989-08-11 1999-02-10 自動車機器株式会社 Temperature dependent pressure detection switch and hydraulic control system using the pressure detection switch
US5136128A (en) * 1991-01-11 1992-08-04 Teledyne Industries, Inc. Hydraulically-piloted switch
JP3916684B2 (en) * 1995-12-27 2007-05-16 カヤバ工業株式会社 Hydraulic pump pressure switch
US6722736B2 (en) * 2002-02-21 2004-04-20 Hickory Springs Manufacturing Company Movable switch for a motorized recliner
EP1362722A1 (en) * 2002-05-14 2003-11-19 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Connection system for an automotive air condition device
JP3722287B2 (en) * 2002-06-11 2005-11-30 アサ電子工業株式会社 Limit switch
ITRE20030092A1 (en) * 2003-09-30 2005-04-01 Arrow Line Srl DAMPENED PRESSURE SWITCH.
US7605336B2 (en) * 2007-08-30 2009-10-20 Honeywell International Inc. Pressure switch with adjustable differental setting
US9357749B2 (en) 2010-01-29 2016-06-07 Gea Houle Inc. Rotary milking station, kit for assembling the same, and methods of assembling and operating associated thereto
CN106783262B (en) * 2015-11-24 2018-07-06 西安航空动力控制科技有限公司 A kind of microswitch controlling device
EP4123678B1 (en) 2021-07-22 2024-05-15 Eaton Intelligent Power Limited Pressure switch with a piston

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268340A (en) * 1940-10-18 1941-12-30 Evarts G Loomis Fluid pressure control device
FR1250613A (en) * 1959-12-02 1961-01-13 Olaer Patent Co Improvements to devices for controlling electrical equipment by the pressure of a fluid
DE1448292B1 (en) * 1961-10-26 1970-08-27 Otto Dold Control device
DE1640360B1 (en) * 1966-12-14 1972-01-20 Herion Werke Kg Electrical differential pressure switch
DE3311083A1 (en) * 1983-03-26 1984-09-27 Alfred Teves Gmbh, 6000 Frankfurt Device for switching a circuit as a function of a hydraulic pressure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216131C (en) *
FR882291A (en) * 1941-05-31 1943-05-28 Stotz Kontakt Gmbh Automobile stop light switch
US3449535A (en) * 1966-08-01 1969-06-10 Essex Mfg Co Inc Fluid operated switch
DE2201973C3 (en) * 1972-01-17 1978-05-24 Teves Gmbh Alfred Lost motion gear for an electrical switch
US3937912A (en) * 1974-09-30 1976-02-10 Martin Industries, Inc. Pressure responsive circuit control unit having adjustable, interchangeable actuator components and cam-operated switch
DE7913018U1 (en) * 1979-05-05 1979-09-20 Robert Scheuffele & Co Armaturen U. Apparate, 7120 Bissingen Pressure switch in explosion-proof design
DE3202512C2 (en) * 1982-01-27 1985-02-28 Willi 7120 Bietigheim-Bissingen Quitoschinger Pressure controlled electrical switch
DD216131A1 (en) * 1983-06-14 1984-11-28 Pirna Fahrzeugelektrik CONTACT WHISPER ASSEMBLY IN HYDRAULICALLY SWITCHED SWITCHES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268340A (en) * 1940-10-18 1941-12-30 Evarts G Loomis Fluid pressure control device
FR1250613A (en) * 1959-12-02 1961-01-13 Olaer Patent Co Improvements to devices for controlling electrical equipment by the pressure of a fluid
DE1448292B1 (en) * 1961-10-26 1970-08-27 Otto Dold Control device
DE1640360B1 (en) * 1966-12-14 1972-01-20 Herion Werke Kg Electrical differential pressure switch
DE3311083A1 (en) * 1983-03-26 1984-09-27 Alfred Teves Gmbh, 6000 Frankfurt Device for switching a circuit as a function of a hydraulic pressure

Also Published As

Publication number Publication date
ATE84909T1 (en) 1993-02-15
EP0284948A2 (en) 1988-10-05
US4827093A (en) 1989-05-02
DE3710645A1 (en) 1988-10-20
EP0284948B1 (en) 1993-01-20
DE3877603D1 (en) 1993-03-04

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