DE733817C - Pneumatic level indicator - Google Patents

Pneumatic level indicator

Info

Publication number
DE733817C
DE733817C DEB190616D DEB0190616D DE733817C DE 733817 C DE733817 C DE 733817C DE B190616 D DEB190616 D DE B190616D DE B0190616 D DEB0190616 D DE B0190616D DE 733817 C DE733817 C DE 733817C
Authority
DE
Germany
Prior art keywords
pressure
level indicator
piston
pneumatic level
air pump
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
DEB190616D
Other languages
German (de)
Inventor
Georg Bloemer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB190616D priority Critical patent/DE733817C/en
Application granted granted Critical
Publication of DE733817C publication Critical patent/DE733817C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Description

Pneumatischer Standanzeiger Die Erfindung betriftt pneumatische Standanzeiger, das sind Vorrichtungen zum Anzeigen des Flüssigkeitsstandes in Behältern, mit einer Luft durch den Tankinhalt drückenden Pumpe und einem Manometer für den Druck in der Förderleitung, und zwar solche Standanzeiger dieser Art, bei denen der Förderdruck durch eine auf den Kolben der Luftpumpe wirkende Feder erzielt wird, die vorher von Hand durch ein am Kolben angreifendes Zugorgan gespannt worden ist. Bei bekannten Vorrichtungen dieser Art ist das Zugorgan eine Kolbenstange.Pneumatic level indicator The invention concerns pneumatic level indicators, these are devices for displaying the liquid level in containers, with a Air through the tank contents pushing pump and a manometer for the pressure in the delivery line, namely such level indicators of this type, in which the delivery pressure is achieved by a spring acting on the piston of the air pump, which previously has been tensioned by hand by a tension member acting on the piston. At acquaintances Devices of this type, the pulling element is a piston rod.

Eine Kolbenstange läßt eine unsachgemäße Bedienung der Luftpumpe insofern zu, als auf den Kolben außer dem Druck der Feder noch ein zusätzlicher Druck ; von Hand ausgeübt werden kann. Dann kann es vorkommen, daß der Druck in der Förderleitung erheblich den dem größten Meßwert des Manometers entsprechenden Druck übersteigt und infolgedessen das Manometer beschädigt wird. Zur Beseitigung dieses Mangels der bekannten Einrichtung wird erfindungsgemäß das den Kolben der Luftpumpe entgegen der den Förderhub bewirkenden Feder bewegende Zugorgan unstarr, d. h. als Kette oder Drahtseil, ausgebildet, so daß es zwar einen Zug, nicht aber einen Druck auf den Kolben übertragen kann. A piston rod allows improper operation of the air pump insofar as there is an additional pressure on the piston in addition to the pressure of the spring Pressure ; can be exercised by hand. Then it can happen that the pressure in the delivery line considerably corresponds to the largest reading on the pressure gauge Pressure exceeds and as a result the pressure gauge will be damaged. For elimination this lack of the known device is according to the invention the piston of the Air pump against the spring causing the delivery stroke moving pulling element unsteady, d. H. as a chain or wire rope, so that there is a train, but not can transmit a pressure to the piston.

Die Zeichnung zeigt schematisch ein Ausführungsbeispiel des Erfindungsgedankens. a ist der Brennstoffbehälter, b ein unter offenes Tauchrohr, das bis zum Boden des Behälters reicht. Dieses Rohr ist mit der Luftpumpe c und dem als Anzeigegerät dienenden Druckmesserd verbunden. Durch Ziehen am Knopf wird die Schraubenfeder j gespannt. Wird der Knopf losgelassen, so drückt sie den Kolben zurück und fördert Luft in das Tauchrohr b, verdrängt aus diesem die Flüssigkeit und erzeugt damit den der Spiegelhöhe entsprechenden Meßdruck. ü ist ein nicht starres Organ, z. B. ein Drahtseil oder eine Kette, das nur Zugkräfte. aber keine Druckkräfte auf den Kolben g übertragen kann. Dadurch ist es unmöglich, einen zusätzlichen Druck von Hand zu erzeugen. der zur Zerstörung der hocbempfind]icben Dosen führt. The drawing shows schematically an embodiment of the inventive concept. a is the fuel tank, b an open dip tube that extends to the bottom of the Container is enough. This tube is with the air pump c and the one serving as a display device Pressure gauge connected. The coil spring j is tensioned by pulling the button. When the button is released, it pushes the piston back and conveys air into it the dip tube b, displaces the liquid from it and thus generates the Measurement pressure corresponding to the mirror height. ü is a non-rigid organ, e.g. B. a wire rope or a chain that only pulls forces. but no compressive forces are transmitted to the piston g can. This makes it impossible to generate additional pressure by hand. the leads to the destruction of the high-sensitivity doses.

Claims (1)

PATENTANSPRUCH: Pneumatischer Standanzeiger. insbesondere für den Brennstoff in den Tanks von Kraftfahrzeugen und Flugzeugen dadurch gekennzeichnet, daß das den Kolben der Luftpumpe entgegen der den Förderhub bewirken den Feder bewegende Zugorgan unstarr, z. B. eine Kette oder ein Drahtseil, ist. PATENT CLAIM: Pneumatic level indicator. especially for the Fuel in the tanks of automobiles and aircraft characterized by that the piston of the air pump against the delivery stroke cause the spring moving Zugorgan non-rigid, z. B. a chain or a wire rope is.
DEB190616D 1940-05-07 1940-05-07 Pneumatic level indicator Expired DE733817C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB190616D DE733817C (en) 1940-05-07 1940-05-07 Pneumatic level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB190616D DE733817C (en) 1940-05-07 1940-05-07 Pneumatic level indicator

Publications (1)

Publication Number Publication Date
DE733817C true DE733817C (en) 1943-04-02

Family

ID=7011148

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB190616D Expired DE733817C (en) 1940-05-07 1940-05-07 Pneumatic level indicator

Country Status (1)

Country Link
DE (1) DE733817C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951673C (en) * 1955-01-23 1956-10-31 Hanns Mohr Liquid level indicator
US4417232A (en) * 1979-04-16 1983-11-22 Tewfik Farouk F Liquid volume indicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951673C (en) * 1955-01-23 1956-10-31 Hanns Mohr Liquid level indicator
US4417232A (en) * 1979-04-16 1983-11-22 Tewfik Farouk F Liquid volume indicator

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