DE851293C - Non-return valve with low flow resistance - Google Patents

Non-return valve with low flow resistance

Info

Publication number
DE851293C
DE851293C DEH7963A DEH0007963A DE851293C DE 851293 C DE851293 C DE 851293C DE H7963 A DEH7963 A DE H7963A DE H0007963 A DEH0007963 A DE H0007963A DE 851293 C DE851293 C DE 851293C
Authority
DE
Germany
Prior art keywords
flow
flap
open
check valve
valve
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
DEH7963A
Other languages
German (de)
Inventor
Theo Dr Hickl
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 DEH7963A priority Critical patent/DE851293C/en
Application granted granted Critical
Publication of DE851293C publication Critical patent/DE851293C/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
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery

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

Description

Für Rückschlagventile sind viele konstruktive Möglichkeiten gegeben und auch bekannt. Eine der einfachsten und üblichsten ist z. B. das Kugelventil, wie es meist in den Saugleitungen von Pumpen vorkommt. Fast alle der bekannten Konstruktionen haben den Nachteil eines großen Durchflußwiderstandes, insbesondere bei Strömungsgeschwindigkeiten, die eine hohe Reynoldssche Zahl ergeben, wobei die laminare Strömung leicht in energieschluckende Turbulenz übergeht.There are many design options for check valves and also known. One of the simplest and most common is e.g. B. the ball valve, as it usually occurs in the suction lines of pumps. Almost all of the known constructions have the disadvantage of a high flow resistance, especially at flow velocities which result in a high Reynolds number, the laminar flow being easily converted into energy-consuming Turbulence passes.

Die vorliegende Erfindung zeigt eine besonders günstige Lösung der Probleme. In der Rohrleitung befindet sich ein kurzer Abschnitt i, der als Ventilsitz ausgebildet ist. Dieser trägt ein an der Stelle 2 angelenktes Klappenstück 3, welches bei geöffneter Ventilstellung sich völlig der Rohrwand anlegt. Es besteht die Möglichkeit, den automatischen Schließvorgang zu beschleunigen durch einen an der Klappe 3 starr befestigten Hebel 4, dessen Querschnitt strömungsdynamisch so ausgebildet ist, daß er bei geöffneter Klappe nur einen minimalen Strömungswiderstand bildet, bei Umkehr der Fließrichtung aber einen größeren, so daß er dann durch seine Hebelwirkung die Klappe von der Rohrwand abhebt, worauf letztere jetzt von der Strömung augenblicklich geschlossen wird. Bei geeigneten Abmessungen des Hebels kann für bestimmte Einbauarten die Schließung des Ventils bereits automatisch erfolgen bei Stillstand des Fließens, also noch vor der eigentlichen Umkehr der Strömungsrichtung. Dieses Selbstschließen bei Stillstand kann auch beispielsweise durch Federkraft eingeleitet oder vollständig bewirkt werden.The present invention shows a particularly advantageous solution Problems. In the pipeline there is a short section i, which acts as a valve seat is trained. This carries a hinged at the point 2 flap piece 3, which completely rests against the pipe wall when the valve is in the open position. There is the possibility to accelerate the automatic closing process by a rigid on the flap 3 attached lever 4, the cross section of which is fluid dynamically designed so that it creates only a minimal flow resistance when the flap is open, when reversed the direction of flow but a larger one, so that he then by his leverage the The flap lifts off the pipe wall, whereupon the latter is instantly affected by the flow is closed. With suitable dimensions of the lever can be used for certain types of installation the valve closes automatically when the flow stops, so before the actual reversal of the direction of flow. This self-closing in the event of a standstill, it can also be initiated or completely, for example, by spring force be effected.

Claims (5)

PATENTANSPRÜCHE: i. Rückschlagklappenventil geringen Durchflußwiderstandes, dadurch gekennzeichnet, daß das Ventilgehäuse als ein gerades Rohr von beispielsweise rundem Querschnitt ausgebildet ist und die einseitig angelenkte Verschlußklappe im geöffneten Zustand an der Rohrinnenwand satt anliegt. PATENT CLAIMS: i. Non-return flap valve of low flow resistance, characterized in that the valve housing is designed as a straight tube of, for example, round cross-section and the closure flap hinged on one side rests snugly against the inner wall of the tube when it is open. 2. Rückschlagklappenventil gemäß Anspruch i, dadurch gekennzeichnet, daß die Klappe mit einem im Strömungskanal liegenden Hebel verbunden ist, der bei geöffneter Klappe von der Strömung im Öffnungssinne beaufschlagt ist, bei Strömungsumkehr aber die Schließbewegung einleitet. 2. Check valve according to claim i, characterized in that the flap with one in the flow channel lying lever is connected, which when the flap is open by the flow in the opening direction is acted upon, but initiates the closing movement when the flow is reversed. 3. Rückschlagklappenventil nach Anspruch 2, dadurch gekennzeichnet, daß der Hebel einen Querschnitt hat, der der Strömung bei geöffnetem Ventil verhältnismäßig geringeren Widerstand bietet als der Strömung in umgekehrter Richtung. 3. Check valve according to claim 2, characterized in that the lever has a cross-section which the flow offers relatively less resistance when the valve is open than the flow in the opposite direction. 4. Rückschlagklappenventil nach Anspruch 3, dadurch gekennzeichnet, daß an dem Hebel ein Körper beweglich angebracht ist, der sich bei geöffnetem Ventil der Strömung anpassen kann und geringen Widerstand bietet, bei Strömungsumkehr aber aus dieser Richtung herausgedrängt wird, und zwar so, daß er erheblichen Widerstand bietet und damit den Schließvorgang einleitet. 4. Check valve according to claim 3, characterized in that a body is movably attached to the lever, which can adapt to the flow when the valve is open and low resistance offers, but is forced out of this direction when the flow is reversed, namely so that it offers considerable resistance and thus initiates the closing process. 5. Rückschlagklappenventil gemäß Anspruch 4, dadurch gekennzeichnet, daß an einer oder mehreren geeigneten Stellen eine Feder derart angebracht ist, so daß diese bei geöffneter Ventilstellung ein (geringes) Kraftmoment im Sinne einer Schließbewegung ausübt, damit bei Stillstand der Fließbewegung die Klappe von der Rohrwand abgehoben wird. Angezogene Druckschriften: Deutsche Patentschrift Nr. 545 g79.5. Check valve according to claim 4, characterized in that on one or several suitable locations, a spring is attached so that this a (low) moment of force in the sense of a closing movement when the valve is in the open position exerts, so that when the flow movement comes to a standstill, the flap is lifted from the pipe wall will. Referenced publications: German patent specification No. 545 g79.
DEH7963A 1951-03-25 1951-03-25 Non-return valve with low flow resistance Expired DE851293C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH7963A DE851293C (en) 1951-03-25 1951-03-25 Non-return valve with low flow resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH7963A DE851293C (en) 1951-03-25 1951-03-25 Non-return valve with low flow resistance

Publications (1)

Publication Number Publication Date
DE851293C true DE851293C (en) 1952-10-02

Family

ID=7145324

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH7963A Expired DE851293C (en) 1951-03-25 1951-03-25 Non-return valve with low flow resistance

Country Status (1)

Country Link
DE (1) DE851293C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061588B (en) * 1956-09-06 1959-07-16 Maerkischer Armaturenbau G M B Flap valve
US4095615A (en) * 1976-05-21 1978-06-20 Ramco Manufacturing, Inc. Check valve and siphon tube assembly employing same
US5099877A (en) * 1990-06-19 1992-03-31 E-Systems, Inc. Swing element valve
DE4031456A1 (en) * 1990-10-04 1992-04-09 Bernhard Meyer Non-return valve two valve gatea - has slotted expander ring with flange fitting into groove in valve housing wall

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE545879C (en) * 1931-01-28 1932-03-09 Julius Pintsch Akt Ges Automatic flap and flap

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE545879C (en) * 1931-01-28 1932-03-09 Julius Pintsch Akt Ges Automatic flap and flap

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061588B (en) * 1956-09-06 1959-07-16 Maerkischer Armaturenbau G M B Flap valve
US4095615A (en) * 1976-05-21 1978-06-20 Ramco Manufacturing, Inc. Check valve and siphon tube assembly employing same
US5099877A (en) * 1990-06-19 1992-03-31 E-Systems, Inc. Swing element valve
DE4031456A1 (en) * 1990-10-04 1992-04-09 Bernhard Meyer Non-return valve two valve gatea - has slotted expander ring with flange fitting into groove in valve housing wall

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