DE4343660A1 - Valve for fluids that opens hydrodynamically against spring pressure - Google Patents

Valve for fluids that opens hydrodynamically against spring pressure

Info

Publication number
DE4343660A1
DE4343660A1 DE19934343660 DE4343660A DE4343660A1 DE 4343660 A1 DE4343660 A1 DE 4343660A1 DE 19934343660 DE19934343660 DE 19934343660 DE 4343660 A DE4343660 A DE 4343660A DE 4343660 A1 DE4343660 A1 DE 4343660A1
Authority
DE
Germany
Prior art keywords
valve
spring
cross
fluids
cavity
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.)
Granted
Application number
DE19934343660
Other languages
German (de)
Other versions
DE4343660B4 (en
Inventor
Rolf Moehle
Hubert Mueller
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.)
Mahle Filtersysteme GmbH
Original Assignee
Knecht Filterwerk GmbH
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 Knecht Filterwerk GmbH filed Critical Knecht Filterwerk GmbH
Priority to DE19934343660 priority Critical patent/DE4343660B4/en
Publication of DE4343660A1 publication Critical patent/DE4343660A1/en
Application granted granted Critical
Publication of DE4343660B4 publication Critical patent/DE4343660B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Safety Valves (AREA)

Abstract

The valve shutter (1) is pressed against the housing by a spring (2) and opened by a flow against it. The spring presses in opposite direction against a sleeve (3) rested on a cross-frame (4) that is fixed to the housing with a spring washer (5). The sleeve is moving inside the valve shutter and forms a cavity (6) together with part of the cross-frame. The cross-frame does not cover the entrance to the cavity completely allowing the fluid to flow in and out damping oscillations of the valve shutter. The sleeve can have the form of a solid plug containing channels to allow the fluid to flow in and out.

Description

Die Erfindung betrifft ein Ventil für Fluide nach dem Ober­ begriff des Anspruchs 1.The invention relates to a valve for fluids according to the upper Concept of claim 1.

Derartige Ventile werden z. B. bei Ölfiltern als Rücklauf­ sperrventil bzw. als Bypassventil eingesetzt. Das Rücklauf­ sperrventil ist im Betrieb immer gegen Federkraft geöffnet, das Bypassventil nur, wenn das Filterbahnmaterial aufgrund von Verschmutzung oder infolge von zu zähflüssigem Öl bei großer Kälte für das Öl unpassierbar ist oder wenn ein Vo­ lumenstrom abhängig von den Betriebsbedingungen geteilt werden soll. Das Ventil wird durch den hydrodynamischen Strömungsdruck offen gehalten, sofern dieser größer ist, als die den Ventilkörper in Schließrichtung drückende Fe­ derkraft. Da der Strömungsdruck häufig nicht konstant ist, sondern pulsiert, wird das Ventil in geöffnetem Zustand zu Schwingungen angeregt, die sich akustisch durch sogenanntes "Schnarren" bemerkbar machen. Im Extremfall und nach länge­ rer Laufzeit unter pulsationsbedingten Schwingungen kann das Ventil funktionsunfähig werden.Such valves are used for. B. with oil filters as a return shut-off valve or used as a bypass valve. The return The shut-off valve is always open against spring force during operation, the bypass valve only if the filter sheet material is due pollution or due to too viscous oil extreme cold is impassable for the oil or if a vo lumen flow divided depending on the operating conditions shall be. The valve is controlled by the hydrodynamic Flow pressure kept open, if this is greater, as the Fe pushing the valve body in the closing direction the power. Since the flow pressure is often not constant, but pulsates, the valve closes when open Vibrations stimulated acoustically by so-called Make "snarling" noticeable. In extreme cases and according to length rer runtime under pulsation-related vibrations the valve becomes inoperable.

Der Erfindung liegt daher das Problem zugrunde, die Auswir­ kungen der Druckpulse auf das Ventil möglichst gering zu halten.The invention is therefore based on the problem, the effect The pressure pulses on the valve are kept as low as possible hold.

Die Lösung dieses Problems erfolgt durch eine Ausgestaltung des Ventils entsprechend dem kennzeichnenden Teil des An­ spruchs 1. This problem is solved by an embodiment of the valve according to the characterizing part of the An saying 1.  

Durch die Erfindung ist eine einfache, kostengünstig herzu­ stellende und wirkungsvolle Schwingungsdämpfung des Ventils gegeben. Das erfindungsgemäße Ventil kann sowohl im Motor­ gehäuse als auch in einem Filtergehäuse integriert sein.The invention is simple, inexpensive effective and effective vibration damping of the valve given. The valve according to the invention can be used both in the engine Housing as well as be integrated in a filter housing.

Der Dämpfungseffekt wird durch das Zusammenwirken eines be­ weglichen Ventil-Verschlußkörpers mit einem feststehenden Aufnahmeteil, z. B. einer Buchse oder einem Zapfen erzielt, wobei beide Teile einen flüssigkeitsgefüllten Hohlraum um­ schließen, der mit dem Hauptstrom des Fluids über einen en­ gen Querschnitt in Verbindung steht.The damping effect is due to the interaction of a be movable valve closure body with a fixed Recording part, e.g. B. achieved a socket or a pin, with both parts around a liquid-filled cavity close that with the main flow of fluid via an en cross section.

Bei geeigneter Ausgestaltung des Aufnahmeteils wird auch ein Führungseffekt erzielt, wodurch ein Verkanten des Ver­ schlußkörpers vermieden wird.With a suitable design of the receiving part is also achieves a guiding effect, thereby tilting the ver closing body is avoided.

Die Erfindung wird im folgenden an zwei Ausführungsbeispie­ len beschrieben.The invention is based on two exemplary embodiments len described.

Es zeigenShow it

Fig. 1 ein Rücklaufsperrventil im Querschnitt, Fig. 1 shows a return valve in cross-section,

Fig. 2 Rücklaufsperrventil nach Fig. 1 in einer Ansicht von unten, Fig. 2 return valve according to Fig. 1 in a view from below,

Fig. 3 ein anderes Rücklaufsperrventil im Querschnitt, Fig. 3 shows another return valve in cross-section,

Fig. 4 einen Querschnitt durch das Aufnahmeteil zu Fig. 3 gemäß Schnittlinie IV-IV. Fig. 4 shows a cross section through the receiving part of Fig. 3 along section line IV-IV.

Der Verschlußkörper 1 wird über eine Feder 2 in seinen ge­ häuseseitigen Kegelsitz gedrückt. Die Feder 2 stützt sich über den Kragen einer Buchse 3 gegen ein Tragkreuz 4 ab, das mit einem Federring 5 im Gehäuse fixiert ist.The closure body 1 is pressed via a spring 2 in its cone seat on the housing side. The spring 2 is supported on the collar of a bush 3 against a cross 4 , which is fixed with a spring ring 5 in the housing.

Der von Verschlußkörper 1, Buchse 3 und Tragkreuz 4 um­ schlossene Hohlraum 6 steht über die Ecken des Tragkreuzes 4 mit dem Außenraum in Verbindung.The closure body 1 , socket 3 and support cross 4 to closed cavity 6 is connected to the outside via the corners of the support cross 4 .

Im Motorbetrieb hebt der Verschlußkörper 1 gegen den Druck der Feder 2 vom Kegelsitz ab und bleibt unter hydrodynami­ schem Druck geöffnet.In engine operation, the closure body 1 lifts up against the pressure of the spring 2 from the conical seat and remains open under hydrodynamic pressure.

Bei Druckschwankungen wird die Feder abwechselnd be- und entlastet, das Feder-Masse-System also zu Schwingungen an­ geregt. Diese Schwingungen werden gedämpft, da zwischen dem ölgefüllten Hohlraum 6 und dem Außenraum eine gedrosselte Strömung erzeugt wird, außerdem durch die hydrodynamische Reibung zwischen Buchse 3 und Verschlußkörper 1.In the event of pressure fluctuations, the spring is alternately loaded and unloaded, so the spring-mass system is excited to vibrate. These vibrations are damped because a throttled flow is generated between the oil-filled cavity 6 and the exterior, and also due to the hydrodynamic friction between the bushing 3 and the closure body 1 .

Durch die Buchse 3 wird der Verschlußkörper 1 zusätzlich so geführt, daß auch bei ungleichmäßiger Belastung durch den hydrodynamischen Druck ein Verkanten unmöglich ist.Through the socket 3 , the closure body 1 is additionally guided so that tilting is impossible even with uneven loading due to the hydrodynamic pressure.

Fig. 3 zeigt ein analog funktionierendes Ventil mit dem Un­ terschied, daß die Befestigung des Ventils im Gußteil über einen Preßsitz des Ventilgehäuses 7 erzielt wird und die Dämpfungswirkung durch einen am Guß-Gehäuse 8 angegossenen Zapfen 9 im Zusammenspiel mit einer am Verschlußkörper 1 befestigten Buchse 10 erzielt wird. Außerdem wird die Dichtfunktion durch einen Kunststoffdichtring 11 herge­ stellt. Fig. 3 shows an analog functioning valve with the difference that the attachment of the valve in the casting is achieved by a press fit of the valve housing 7 and the damping effect by a cast on the cast housing 8 pin 9 in cooperation with a fastener on the closure body 1 socket 10 is achieved. In addition, the sealing function is provided by a plastic sealing ring 11 .

Claims (3)

1. Durch Federkraft schließendes Ventil für Fluide, insbe­ sondere für den Schmierölkreislauf von Verbrennungsmo­ toren, dadurch gekennzeichnet, daß das Ventil einen hydraulisch schwingungsgedämpften, gegen ein feststehendes Aufnahmeteil (3 bzw. 9) ver­ schiebbaren Verschlußkörper (1) besitzt.1. Spring-closing valve for fluids, in particular for the lubricating oil circuit of combustion engines, characterized in that the valve has a hydraulically damped, against a fixed receiving part ( 3 or 9 ) ver sliding closure body ( 1 ). 2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß das Volumen eines von dem Verschlußkörper (1) und dem Aufnahmeteil (3 bzw. 9) umschlossenen Hohlraumes (6) durch eine Relativbewegung zwischen dem Verschluß­ körper (1) und dem Aufnahmeteil (3 bzw. 9) durch ge­ drosselte Fluidströmung zwischen dem Hohlraum (6) und dem außerhalb des Hohlraumes liegenden Fluidraum verän­ derbar ist.2. Valve according to claim 1, characterized in that the volume of a closure body ( 1 ) and the receiving part ( 3 or 9 ) enclosed cavity ( 6 ) by a relative movement between the closure body ( 1 ) and the receiving part ( 3 or . 9 ) can be changed by restricted fluid flow between the cavity ( 6 ) and the fluid space outside the cavity. 3. Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Aufnahmeteil (9) aus einem am Motorgehäuse an­ gegossenem Zapfen (9) besteht.3. Valve according to claim 1 or 2, characterized in that the receiving part ( 9 ) consists of a cast on the motor housing on the pin ( 9 ).
DE19934343660 1993-12-21 1993-12-21 Valve for the lubricating oil circuit of an internal combustion engine Expired - Lifetime DE4343660B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934343660 DE4343660B4 (en) 1993-12-21 1993-12-21 Valve for the lubricating oil circuit of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934343660 DE4343660B4 (en) 1993-12-21 1993-12-21 Valve for the lubricating oil circuit of an internal combustion engine

Publications (2)

Publication Number Publication Date
DE4343660A1 true DE4343660A1 (en) 1995-06-22
DE4343660B4 DE4343660B4 (en) 2005-06-02

Family

ID=6505653

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934343660 Expired - Lifetime DE4343660B4 (en) 1993-12-21 1993-12-21 Valve for the lubricating oil circuit of an internal combustion engine

Country Status (1)

Country Link
DE (1) DE4343660B4 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014871A1 (en) * 1995-10-17 1997-04-24 Westinghouse Electric Corporation Variable area compensation valve
DE102004008299A1 (en) * 2004-02-20 2005-09-01 Daimlerchrysler Ag Internal combustion engine with a lubricant circuit and a damping element
DE202004008253U1 (en) * 2004-05-19 2005-09-29 Hengst Gmbh & Co.Kg Oil or fuel filter chamber non-return valve has a valve-holder shaped to provide recesses engaging securing lugs directly on the housing and to permit its rotation by a valve insertion tool during assembling
DE102007023121A1 (en) 2007-05-10 2008-11-20 Joma-Polytec Kunststofftechnik Gmbh Valve and valve guide for automotive piston engine with spring-loaded locating plungers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339101A (en) * 1941-03-13 1944-01-11 Arthur L Parker Check valve assembly
DE9010459U1 (en) * 1990-07-11 1990-09-13 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De
DE4029909A1 (en) * 1990-09-21 1992-03-26 Bosch Gmbh Robert Non return valve for air driers of air brakes - has spring-tensioned closing body with cylindrical attachment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784524U (en) * 1959-01-15 1959-03-05 Bopp & Reuther Gmbh NON-RETURN VALVE, IN PARTICULAR FOR DISTRICT HEATING PIPES.
DE2303511C3 (en) * 1973-01-25 1980-01-24 Aeg-Kanis Turbinenfabrik Gmbh, 8500 Nuernberg Combined start-up and quick-closing device for steam and gas turbines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339101A (en) * 1941-03-13 1944-01-11 Arthur L Parker Check valve assembly
DE9010459U1 (en) * 1990-07-11 1990-09-13 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De
DE4029909A1 (en) * 1990-09-21 1992-03-26 Bosch Gmbh Robert Non return valve for air driers of air brakes - has spring-tensioned closing body with cylindrical attachment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014871A1 (en) * 1995-10-17 1997-04-24 Westinghouse Electric Corporation Variable area compensation valve
DE102004008299A1 (en) * 2004-02-20 2005-09-01 Daimlerchrysler Ag Internal combustion engine with a lubricant circuit and a damping element
DE202004008253U1 (en) * 2004-05-19 2005-09-29 Hengst Gmbh & Co.Kg Oil or fuel filter chamber non-return valve has a valve-holder shaped to provide recesses engaging securing lugs directly on the housing and to permit its rotation by a valve insertion tool during assembling
DE102007023121A1 (en) 2007-05-10 2008-11-20 Joma-Polytec Kunststofftechnik Gmbh Valve and valve guide for automotive piston engine with spring-loaded locating plungers
DE102007023121B4 (en) * 2007-05-10 2010-01-07 Joma-Polytec Kunststofftechnik Gmbh Valve for insertion into a housing, in particular an internal combustion engine

Also Published As

Publication number Publication date
DE4343660B4 (en) 2005-06-02

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE

8364 No opposition during term of opposition
R071 Expiry of right
R071 Expiry of right