DE19630865A1 - Arrangement of non-return valve in gas pipes of internal combustion engines - Google Patents

Arrangement of non-return valve in gas pipes of internal combustion engines

Info

Publication number
DE19630865A1
DE19630865A1 DE19630865A DE19630865A DE19630865A1 DE 19630865 A1 DE19630865 A1 DE 19630865A1 DE 19630865 A DE19630865 A DE 19630865A DE 19630865 A DE19630865 A DE 19630865A DE 19630865 A1 DE19630865 A1 DE 19630865A1
Authority
DE
Germany
Prior art keywords
arrangement
return valve
valve
internal combustion
combustion engines
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Withdrawn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
DE19630865A
Other languages
German (de)
Inventor
Dieter Pusch
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE19630865A priority Critical patent/DE19630865A1/en
Publication of DE19630865A1 publication Critical patent/DE19630865A1/en
Withdrawn legal-status Critical Current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
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • 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
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

A valve closure body (3) is mounted in an expansion chamber (4) of the gas pipe which is separated from the atmospheric chamber (9) by a diaphragm (8). The diaphragm is loaded by a spring (5) which loads the valve closure body (3) on the other side. Apart from the non-return valve action lower pressures than atmospheric pressure do not open the non-return valve since with the lower pressure the membrane is drawn into the expansion chamber and tensions the spring (5) so that the valve closing force is increased.

Description

Die Erfindung betrifft eine Anordnung eines Rückschlagventils nach dem Oberbegriff des Patentanspruchs.The invention relates to an arrangement of a check valve according to the preamble of Claim.

Derartige Anordnungen finden bei Brennkraftmaschinen Verwendung, bei denen zur Abgasentgiftung Sekundärluft in das Abgasrohr eingeblasen wird. Bei abgeschalteter Lufteinblasung soll die Anordnung des Rückschlagventils in der Luftleitung das Eindringen von Abgas in die luftführenden Leitungen und ggf. eine Luftpumpe verhindern.Such arrangements are used in internal combustion engines in which Exhaust gas detoxification Secondary air is blown into the exhaust pipe. When switched off Air injection is said to prevent the arrangement of the check valve in the air line from entering Avoid exhaust gas in the air-carrying lines and, if necessary, an air pump.

Es ist bekannt, daß im Abgasrohr durch Pulsationen Drücke herrschen können, die unter dem Atmosphärendruck liegen. Es ist daher notwendig, in die Luftleitung zusätzlich ein Abschaltventil einzusetzen, mit dem verhindert wird, daß bei Abgasrohrdruck, der unter dem atmosphärischen liegt, Luft in das Abgasrohr gesaugt wird.It is known that pulsations in the exhaust pipe can prevail under atmospheric pressure. It is therefore necessary to add an additional one to the air line Use shut-off valve, which is used to prevent exhaust pipe pressure from falling below the atmospheric, air is sucked into the exhaust pipe.

Hierdurch verteuert sich die Anordnung und wird ggf. durch elektrische und gasführende Anschlußleitungen sehr aufwendig.As a result, the arrangement becomes more expensive and, if necessary, becomes electrical and gas-carrying Connection lines very complex.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, Maßnahmen aufzufinden, mit denen ein zusätzliches Abschaltventil entfallen kann und die Anordnung sehr einfach auszuführen ist.Proceeding from this, the object of the invention is to find measures with which an additional shut-off valve can be omitted and the arrangement is very simple is to be carried out.

Diese Aufgabe ist durch die im Kennzeichen des Patentanspruchs angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of the claim solved.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben. An embodiment of the invention is shown in the drawing and will described below.  

Diese zeigt einen Schnitt durch eine Anordnung eines Rückschlagventils 1 in einer Gaslei­ tung 2, bei der ein Ventilschließkörper 3 in einer Erweiterungskammer 4 der Gasleitung 2 angeordnet und durch eine Feder 5 belastet ist.This shows a section through an arrangement of a check valve 1 in a Gaslei device 2 , in which a valve closing body 3 is arranged in an expansion chamber 4 of the gas line 2 and is loaded by a spring 5 .

Diese Anordnung entspricht dem Stand der Technik, mit ihr läßt sich eine rückströmfreie Strömung in der Gasleitung 2 von einem Anschluß 6 zu einem weiteren Anschluß 7 errei­ chen.This arrangement corresponds to the prior art, with it a backflow-free flow in the gas line 2 from a connection 6 to another connection 7 can be achieved.

Erfindungsgemäß ist bei dieser Anordnung vorgesehen, daß die Erweiterungskammer 4 durch eine Membrane 8 von einer Atmosphärenkammer 9 getrennt ist und die Membrane 8 von der Feder 5 belastet ist, die andererseits den Ventilschließkörper 3 belastet.According to the invention, in this arrangement it is provided that the expansion chamber 4 is separated from an atmospheric chamber 9 by a membrane 8 and the membrane 8 is loaded by the spring 5 , which on the other hand loads the valve closing body 3 .

Durch diese Maßnahme wird erreicht, daß, neben der erwähnten Rückschlagventilwirkung, gegenüber dem Atmosphärendruck niedrige Drücke in dem Anschluß 7 zu keiner Öffnung des Rückschlagventils I führen, da gleichzeitig mit dem niedrigen Druck die Membrane 8 in die Erweiterungskammer 4 hineingezogen wird und die zwischen Membrane 8 und Ventilschließkörper 3 eingespannte Feder 5 belastet und spannt, wodurch die Ventilschließkraft vergrößert wird und der niedrige Druck keine Öffnung des Ventils mehr bewirken kann.This measure ensures that, in addition to the aforementioned check valve action, low pressures in the connection 7 with respect to the atmospheric pressure do not lead to the check valve I opening, since at the same time the membrane 8 is drawn into the expansion chamber 4 with the low pressure and that between the membrane 8 and the valve closing body 3 loaded and tensioned spring 5 , whereby the valve closing force is increased and the low pressure can no longer cause the valve to open.

Damit liegt eine Wirkweise vor, die den Einsatz der Anordnung zum Beispiel für die Abgasentgiftung einer Brennkraftmaschine ermöglicht, ohne zusätzlichen Aufwand an Abschaltventilen, Anschlußleitungen etc.There is thus a mode of action which is used, for example, for the arrangement Exhaust gas detoxification of an internal combustion engine enables without additional effort Shut-off valves, connecting lines etc.

Claims (1)

Anordnung eines Rückschlagventils in einer Gasleitung, bei der ein Ventilschließkörper in einer Erweiterungskammer der Gasleitung angeordnet und durch eine Feder belastet ist, dadurch gekennzeichnet, daß die Erweiterungskammer (4) durch eine Membrane (8) von einer Atmosphärenkammer (9) getrennt ist und die Membrane (8) von der Feder (5) bela­ stet ist, die andererseits den Ventilschließkörper (3) belastet.Arrangement of a check valve in a gas line, in which a valve closing body is arranged in an expansion chamber of the gas line and is loaded by a spring, characterized in that the expansion chamber ( 4 ) is separated from an atmosphere chamber ( 9 ) by a membrane ( 8 ) and the membrane ( 8 ) of the spring ( 5 ) is loaded, which on the other hand loads the valve closing body ( 3 ).
DE19630865A 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipes of internal combustion engines Withdrawn DE19630865A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19630865A DE19630865A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipes of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19630865A DE19630865A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipes of internal combustion engines

Publications (1)

Publication Number Publication Date
DE19630865A1 true DE19630865A1 (en) 1998-02-05

Family

ID=7801353

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19630865A Withdrawn DE19630865A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipes of internal combustion engines

Country Status (1)

Country Link
DE (1) DE19630865A1 (en)

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: PIERBURG GMBH, 41460 NEUSS, DE

8110 Request for examination paragraph 44
8130 Withdrawal