DE687026C - Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve - Google Patents

Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve

Info

Publication number
DE687026C
DE687026C DE1939H0159329 DEH0159329D DE687026C DE 687026 C DE687026 C DE 687026C DE 1939H0159329 DE1939H0159329 DE 1939H0159329 DE H0159329 D DEH0159329 D DE H0159329D DE 687026 C DE687026 C DE 687026C
Authority
DE
Germany
Prior art keywords
check valve
valve
acted
supports
opening movement
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
DE1939H0159329
Other languages
German (de)
Inventor
Otto Herberger
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.)
OTTO HERBERGER
Original Assignee
OTTO HERBERGER
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 OTTO HERBERGER filed Critical OTTO HERBERGER
Priority to DE1939H0159329 priority Critical patent/DE687026C/en
Application granted granted Critical
Publication of DE687026C publication Critical patent/DE687026C/en
Expired legal-status Critical Current

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Description

Rücksehlagventil mit einem vom Betriebsmittel beaufselrlagten und die Öffnungsbewegung des Ventils unterstützenden Anhubkolben Zusatz zum Patent 674 935 Die Erfindung betrifft ein Rückschlagventil nach Patent 67q.935, bei dem der Anhubkolben für das Ventil als Differentialkolben ausgebildet ist. Die zusätzliche Erfindung besteht darin, daß der im Rückschlagventil angeordnete Differentialkolben eine Bohrung aufweist, durch welche beim Anheben des Differentialkolbens der Raum hinter dem Rückschlagventil mit dem Raum vor dem Rückschlagventil verbunden wird. Auf diese Weise soll vor dem Öffnen des Rückschlagventils beim Anheben des Differentialkolbens ein Druckausgleich auf beiden Seiten des Rückschlagventils hergestellt werden, so daß das Rückschlagventil leicht von seinem Sitz abgehoben werden kann.Rücksehlagventil beaufselrlagten with the operating means and the opening movement of the valve supporting Anhubkolben addition to Patent 674935 The invention relates to a check valve according to Patent 67q.935, wherein the Anhubkolben for the valve is designed as a differential piston. The additional invention consists in that the differential piston arranged in the check valve has a bore through which the space behind the check valve is connected to the space in front of the check valve when the differential piston is lifted. In this way, before the check valve opens when the differential piston is raised, pressure equalization is to be established on both sides of the check valve so that the check valve can easily be lifted from its seat.

In der Zeichnung ist die Erfindung an einem Ausführungsbeispiel dargestellt, und zwar zeigt: Abb. r einen Längsschnitt durch das Rückschlagventil mit geschlossener Ausgleichsöffnung; .In the drawing, the invention is shown in an exemplary embodiment, namely shows: Fig. r a longitudinal section through the check valve with the closed Compensation opening; .

Abb. z einen Längsschnitt durch das Rückschlagventil mit geöffneter Ausgleichsöffnung. In dem Ventilgehäuse k, fliegt das Rück-Schlagventil c auf dem Ventilsitz z auf. Sobald der Vorstrom von a aus auf das Rückschlagventil c wirkt, wird der in dessen Zylinder geführte Differentialkolben na, za in die Höhe gehoben, wobei dessen Bohrung s-s über dem Rückschlagventil c heraustritt und die Räume a und b miteinander verbindet. Der Zylinder t ist durch Rippen r mit dem Rückschlagv entil c fest verbunden. Durch die Bohrung s-s strömt das Betriebsmittel aus dem Raum b ausgleichend in den. Raum a unter das Rückschlagventil c, womit ein Druckausgleich entsteht und das Rückschlagventil c von seinem Sitz abgehoben wird: Hört der Vorstrom auf; so schließt das Rückschlagventil c auf seinem Sitz ab, worauf der Differentialkolben m, iz zurückgleitet und die Bohrung s-s absperrt und durch den Ansatz d auf dem Rückschlagventil c noch besonders abdichtet.Fig. Z shows a longitudinal section through the check valve with the compensation opening open. In the valve housing k, f , the check valve c rests on the valve seat z. As soon as the preliminary flow acts on the check valve c from a, the differential piston na, za guided in its cylinder is lifted upwards, its bore ss emerging above the check valve c and connecting spaces a and b with one another. The cylinder t is firmly connected to the check valve c by ribs r. The operating fluid flows through the bore ss from the space b into the compensating manner. Space a under the check valve c, which creates a pressure equalization and the check valve c is lifted from its seat: If the pre-flow stops; the check valve c closes on its seat, whereupon the differential piston m, iz slides back and closes the bore ss and seals it off especially on the check valve c through the shoulder d.

Claims (1)

PATENTANSPRUCH: Rückschlagventil mit Differentialkolben nach dem Patent 67q.935, dadurch gekennzeichnet, daß der in dem Rückschlagventil (c) angeordnete Differentialkolben (in, za) eine Bohrung (s-s) aufweist, durch welche beim Anheben des Differentialkolbens der Raum (b) hinter dem Rückschlagventil mit dem Raum (ca) vor dem Rückschlagventil zur Erzielung eines Druckausgleichs verbunden wird.Claim: check valve with differential piston according to patent 67q.935, characterized in that the differential piston (in, za) arranged in the check valve (c) has a bore (ss) through which the space (b) behind the Check valve is connected to the space (ca) in front of the check valve in order to achieve pressure equalization.
DE1939H0159329 1939-04-18 1939-04-18 Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve Expired DE687026C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939H0159329 DE687026C (en) 1939-04-18 1939-04-18 Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939H0159329 DE687026C (en) 1939-04-18 1939-04-18 Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve

Publications (1)

Publication Number Publication Date
DE687026C true DE687026C (en) 1940-01-20

Family

ID=7182999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939H0159329 Expired DE687026C (en) 1939-04-18 1939-04-18 Check valve with a lifting piston that is acted upon by the operating medium and that supports the opening movement of the valve

Country Status (1)

Country Link
DE (1) DE687026C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427764A (en) * 1944-09-13 1947-09-23 Gen Motors Corp Vent plug
WO2011157328A1 (en) * 2010-06-19 2011-12-22 Electrolux Home Products Corporation N.V. Detergent dispenser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427764A (en) * 1944-09-13 1947-09-23 Gen Motors Corp Vent plug
WO2011157328A1 (en) * 2010-06-19 2011-12-22 Electrolux Home Products Corporation N.V. Detergent dispenser
EP2404538A1 (en) * 2010-06-19 2012-01-11 Electrolux Home Products Corporation N.V. Detergent dispenser

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