IT1255266B - Commutatore a pressione - Google Patents

Commutatore a pressione

Info

Publication number
IT1255266B
IT1255266B ITMI921250A ITMI921250A IT1255266B IT 1255266 B IT1255266 B IT 1255266B IT MI921250 A ITMI921250 A IT MI921250A IT MI921250 A ITMI921250 A IT MI921250A IT 1255266 B IT1255266 B IT 1255266B
Authority
IT
Italy
Prior art keywords
piston
pressure switch
spring
guide
pressure
Prior art date
Application number
ITMI921250A
Other languages
English (en)
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 ITMI921250A0 publication Critical patent/ITMI921250A0/it
Publication of ITMI921250A1 publication Critical patent/ITMI921250A1/it
Application granted granted Critical
Publication of IT1255266B publication Critical patent/IT1255266B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

L'invenzione riguarda un commutatore a pressione, in particolare per elevate pressioni di esercizio, in cui un pistone sollecitabile per mezzo di un fluido in pressione, allorchè viene raggiunta una pressione di commutazione preimpostabile mediante la molla, commuta, contrastando la forza di una molla, un elemento di commutazione. Il pistone, che è sistemato in una guida, è ermetizzato mediante una membrana elastomerica nei confronti del fluido in pressione e, tra la membrana elastomerica e la guida del pistone, è sistemata una rondella di appoggio, la quale circonda il pistone.(Figura 1).
ITMI921250A 1991-05-31 1992-05-22 Commutatore a pressione IT1255266B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9106694U DE9106694U1 (de) 1991-05-31 1991-05-31 Druckschalter

Publications (3)

Publication Number Publication Date
ITMI921250A0 ITMI921250A0 (it) 1992-05-22
ITMI921250A1 ITMI921250A1 (it) 1993-11-22
IT1255266B true IT1255266B (it) 1995-10-25

Family

ID=6867832

Family Applications (2)

Application Number Title Priority Date Filing Date
IT000520U ITMI920520U1 (it) 1991-05-31 1992-05-22 Commutatore a pressione
ITMI921250A IT1255266B (it) 1991-05-31 1992-05-22 Commutatore a pressione

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT000520U ITMI920520U1 (it) 1991-05-31 1992-05-22 Commutatore a pressione

Country Status (4)

Country Link
US (1) US5243158A (it)
DE (1) DE9106694U1 (it)
FR (1) FR2684487B1 (it)
IT (2) ITMI920520U1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351562A (en) 1992-01-24 1994-10-04 Keystone Railway Equipment Co., Inc. Hydraulic--pneumatic cushioning device with pressure indicator
US5469978A (en) * 1994-07-12 1995-11-28 Keystone Railway Equipment Company, Inc. Condition indicating system for railway car cushioning unit
US5554834A (en) * 1994-08-04 1996-09-10 Argus Machine Co. Ltd. Pressure switch
CA2158623C (en) * 1995-09-19 1999-12-21 James Richard Ellett Pressure switch
US5744771A (en) * 1996-11-05 1998-04-28 Argus Machine Co. Ltd. Pressure switch with increased deadband
ES2464217B1 (es) * 2014-02-26 2015-01-16 Zertan S.A. Presostato diferencial para filtros de combustible
US10217583B2 (en) * 2014-10-24 2019-02-26 Halliburton Energy Services, Inc. Pressure responsive switch for actuating a device
DE102019108261A1 (de) * 2019-03-29 2020-10-01 Condor-Werke Gebr. Frede GmbH Druckschaltvorrichtung
CN110398236B (zh) * 2019-07-25 2021-10-15 重庆电子工程职业学院 激光发射装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB328811A (en) * 1929-05-13 1930-05-08 Kevitt Rotherham Pressure indicators
NL277535A (it) * 1962-05-11
DE1291407B (de) * 1963-06-18 1969-03-27 Licentia Gmbh Stroemungsschaltelement fuer Gas oder fluessige Medien
GB1187394A (en) * 1966-07-13 1970-04-08 Simplifix Couplings Ltd Improvements relating to Pressure Switches
FR2422247A1 (fr) * 1978-02-10 1979-11-02 Dba Manocontact pour circuit hydraulique haute pression
DE3026532A1 (de) * 1980-07-12 1982-02-18 Robert Bosch Gmbh, 7000 Stuttgart Druckschalter
IT1145105B (it) * 1981-09-22 1986-11-05 Mario Turatti Trasmettitore elettrico di pressione utilizzabile per comandare segnalatori elettrici della pressione dell olio nel circuito di lubrificazione di motori a combustione interna
US4411439A (en) * 1982-04-28 1983-10-25 Jim Ray Company, Inc. Sealing member with anti-extrusion means and protective coating
IT1180107B (it) * 1984-11-05 1987-09-23 Greg Di S Greganti E C Sas Dispositivo per segnalare condizioni anormali di pressione in un pneumatico di un autoveicolo in marcia
US4630480A (en) * 1985-11-12 1986-12-23 Chrysler Motors Corporation Transducer fastening device
IT8653186V0 (it) * 1986-03-25 1986-03-25 Greg Di S Greganti E C S A S Dispositivo sensore di pressione per pneumatici di autoveicoli
US4900883A (en) * 1988-06-14 1990-02-13 Whitman Controls Corporation Fluid-operated compound switch
US4967047A (en) * 1989-01-09 1990-10-30 Acustar, Inc. Switch with post-assembly calibration access
US5089675A (en) * 1990-03-29 1992-02-18 Acustar, Inc. Resistor card calibration retention method and fuel pump switch

Also Published As

Publication number Publication date
FR2684487A1 (fr) 1993-06-04
US5243158A (en) 1993-09-07
DE9106694U1 (de) 1991-10-10
ITMI921250A0 (it) 1992-05-22
ITMI920520V0 (it) 1992-05-22
ITMI920520U1 (it) 1992-12-01
FR2684487B1 (fr) 1994-12-23
ITMI921250A1 (it) 1993-11-22

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970528