DE19630866A1 - Arrangement of non-return valve in gas pipe of internal combustion engines - Google Patents

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

Info

Publication number
DE19630866A1
DE19630866A1 DE19630866A DE19630866A DE19630866A1 DE 19630866 A1 DE19630866 A1 DE 19630866A1 DE 19630866 A DE19630866 A DE 19630866A DE 19630866 A DE19630866 A DE 19630866A DE 19630866 A1 DE19630866 A1 DE 19630866A1
Authority
DE
Germany
Prior art keywords
arrangement
gas pipe
internal combustion
return valve
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Withdrawn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
DE19630866A
Other languages
German (de)
Inventor
Raj Kumar Jain
Rolf Hassels
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 DE19630866A priority Critical patent/DE19630866A1/en
Publication of DE19630866A1 publication Critical patent/DE19630866A1/en
Withdrawn legal-status Critical Current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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
    • 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
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

A valve closing body (3) is mounted in an expansion chamber (4) of the gas pipe which widens out opposite a throttle section (8) of the pipe into a damping chamber (9) in which the pressure peaks entering from the gas pipe can relax. Apart from the non-return valve action lower pressures than the atmospheric pressure do not result in opening of the valve since the pressure peaks relax as they enter the expansion chamber.

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 gegenüber einem Drosselabschnitt 8 der Gasleitung 2 zu einer Dämpfungskammer 9 er­ weitert ist, in der sich aus der Gasleitung 2 eintretende Druckspitzen entspannen.According to the invention, it is provided in this arrangement that the expansion chamber 4 is expanded relative to a throttle section 8 of the gas line 2 to form a damping chamber 9 , in which pressure peaks coming from the gas line 2 relax.

Durch diese Maßnahme wird erreicht, daß, neben der erwähnten Rückschlagventilwirkung, gegenüber dem Atmosphärendruck niedrige Drücke im Anschluß 7 zu keiner Öffnung des Rückschlagventils 1 führen, da gleichzeitig mit dem Eintreten der Druckspitzen 8 in die Erweiterungskammer 4 diese sich entspannen und keine Öffnung des Ventils I mehr bewirken können.This measure ensures that, in addition to the above-mentioned check valve effect, low pressures in connection 7 with respect to the atmospheric pressure do not lead to any opening of the check valve 1 , since at the same time as the pressure peaks 8 enter the expansion chamber 4, these relax and no opening of the valve I can do more.

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) gegenüber einem Drosselab­ schnitt (8) der Gasleitung (2) zu einer Dämpfungskammer (9) erweitert ist, in der sich aus der Gasleitung (2) eintretende Druckspitzen entspannen.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 ) with respect to a throttle section ( 8 ) of the gas line ( 2 ) to a damping chamber ( 9 ) is expanded, in which pressure peaks coming in from the gas line ( 2 ) relax.
DE19630866A 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipe of internal combustion engines Withdrawn DE19630866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19630866A DE19630866A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipe of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19630866A DE19630866A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipe of internal combustion engines

Publications (1)

Publication Number Publication Date
DE19630866A1 true DE19630866A1 (en) 1998-02-05

Family

ID=7801354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19630866A Withdrawn DE19630866A1 (en) 1996-07-31 1996-07-31 Arrangement of non-return valve in gas pipe of internal combustion engines

Country Status (1)

Country Link
DE (1) DE19630866A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857029A1 (en) * 1998-12-10 2000-07-13 Alfmeier Praezision Ag Back pressure valve esp. for brake force intensifier in motor vehicle has working medium-filled sound damper chamber in valve pressure pipe in front of valve seat
CN102865430A (en) * 2012-09-21 2013-01-09 上海凯鸿环保工程有限公司 Valve system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857029A1 (en) * 1998-12-10 2000-07-13 Alfmeier Praezision Ag Back pressure valve esp. for brake force intensifier in motor vehicle has working medium-filled sound damper chamber in valve pressure pipe in front of valve seat
DE19857029C2 (en) * 1998-12-10 2000-12-21 Alfmeier Praez Ag Check valve, in particular for a brake booster in a motor vehicle
CN102865430A (en) * 2012-09-21 2013-01-09 上海凯鸿环保工程有限公司 Valve system

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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