FR2407461A1 - Capteur d'ondes de pression - Google Patents

Capteur d'ondes de pression

Info

Publication number
FR2407461A1
FR2407461A1 FR7830285A FR7830285A FR2407461A1 FR 2407461 A1 FR2407461 A1 FR 2407461A1 FR 7830285 A FR7830285 A FR 7830285A FR 7830285 A FR7830285 A FR 7830285A FR 2407461 A1 FR2407461 A1 FR 2407461A1
Authority
FR
France
Prior art keywords
labyrinth seal
surface forming
pipe containing
wave switch
fluid pressure
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.)
Withdrawn
Application number
FR7830285A
Other languages
English (en)
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.)
Bircher AG
Original Assignee
Bircher AG
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 Bircher AG filed Critical Bircher AG
Publication of FR2407461A1 publication Critical patent/FR2407461A1/fr
Withdrawn legal-status Critical Current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
    • H01H35/242—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow operated by one particular pressure-time function

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

CAPTEUR D'ONDES DE PRESSION, POUR DETECTER UNE VARIATION BRUSQUE DE PRESSION. UN PISTON 2, MOBILE DANS LE CORPS TUBULAIRE 1 DU CAPTEUR, ENTRE DEUX BUTEES 4, 5, EST SOUMIS AUX IMPULSIONS DE PRESSION A DETECTER. LE PISTON PRESENTE UNE PARTIE PROFILEE 3, PAR EXEMPLE EN FORME DE FILETAGE, COMPORTANT DES SAILLIES 3A QUI FORMENT UN JOINT EN LABYRINTHE AVEC LA FACE INTERNE DE LA PAROI DU CORPS TUBULAIRE. CE JOINT PERMET UNE VARIATION LENTE DE LA PRESSION, EN AUGMENTATION OU EN DIMINUTION, TOUT EN AUTORISANT UN COULISSEMENT DU PISTON SOUS L'EFFET D'UNE VARIATION BRUTALE DE PRESSION. APPLICATION AUX CAPTEURS DE PRESSION, LORSQU'IL S'AGIT D'ELIMINER LES EFFETS DES VARIATIONS LENTES, POUR DETECTER SEULEMENT LES VARIATIONS BRUSQUES DE PRESSION.
FR7830285A 1977-10-28 1978-10-25 Capteur d'ondes de pression Withdrawn FR2407461A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7711895A NL7711895A (nl) 1977-10-28 1977-10-28 Drukgolf-schakelaar.

Publications (1)

Publication Number Publication Date
FR2407461A1 true FR2407461A1 (fr) 1979-05-25

Family

ID=19829434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7830285A Withdrawn FR2407461A1 (fr) 1977-10-28 1978-10-25 Capteur d'ondes de pression

Country Status (3)

Country Link
DE (1) DE2846173A1 (fr)
FR (1) FR2407461A1 (fr)
NL (1) NL7711895A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017011040A1 (de) * 2017-11-29 2019-05-29 Iie Gmbh & Co. Kg Elektrisches System

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382333A (en) * 1965-12-10 1968-05-07 Ford Motor Co Warning light switch for split brake system
GB1174016A (en) * 1966-04-13 1969-12-10 Amp Inc A Fluid Pressure Responsive Switch Device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382333A (en) * 1965-12-10 1968-05-07 Ford Motor Co Warning light switch for split brake system
GB1174016A (en) * 1966-04-13 1969-12-10 Amp Inc A Fluid Pressure Responsive Switch Device

Also Published As

Publication number Publication date
DE2846173A1 (de) 1979-05-03
NL7711895A (nl) 1979-05-02

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Legal Events

Date Code Title Description
ST Notification of lapse