EP1820956A3 - Exhaust gas recirculation valve - Google Patents

Exhaust gas recirculation valve Download PDF

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Publication number
EP1820956A3
EP1820956A3 EP06019126A EP06019126A EP1820956A3 EP 1820956 A3 EP1820956 A3 EP 1820956A3 EP 06019126 A EP06019126 A EP 06019126A EP 06019126 A EP06019126 A EP 06019126A EP 1820956 A3 EP1820956 A3 EP 1820956A3
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
outlet
housing
valve
gas recirculation
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Withdrawn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
EP06019126A
Other languages
German (de)
French (fr)
Other versions
EP1820956A2 (en
Inventor
Mathias ELSÄSSER
Siegfried Keusch
Florian Bantle
Ulrich Müller-Boysen
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.)
Gustav Wahler GmbH and Co KG
Original Assignee
Gustav Wahler GmbH and Co KG
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 Gustav Wahler GmbH and Co KG filed Critical Gustav Wahler GmbH and Co KG
Publication of EP1820956A2 publication Critical patent/EP1820956A2/en
Publication of EP1820956A3 publication Critical patent/EP1820956A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

Die Erfindung betrifft ein Abgasrückführventil (10), mit einem Gehäuse (11), dessen Inneres (12) mit einem Einlass (13) für einzuleitendes Abgas, einer Ventilöffnung (14, 25) für zurückzuführendes Abgas und einem Auslass (15) für auszuleitendes Abgas in Verbindung steht, mit einem die Ventilöffnung (14, 25) steuernden, zwischen einer Schließstellung und einer Öffnungsstellung bewegbaren Ventilelement (30) und einem zwischen einer den Auslass (15) verschließenden und diesen freigebenden Stellung bewegbaren Drosselelement (40), die gemeinsam um eine Schwenkachse (18) derart schwenkbetätigbar sind, dass bei Bewegung des Ventilelements (30) in Richtung seiner Öffnungsstellung das Drosselelement (40) entsprechend in Richtung seiner Schließstellung und umgekehrt bewegt wird und der Auslass (15) mittels des Drosselelements (40) bei in Öffnungsstellung befindlichem Ventilelement (30) zumindest nahezu vollständig geschlossen und bei in Schließstellung befindlichem Ventilelement (30) geöffnet ist. Die Ventilöffnung (14, 25) ist an einer Stirnseite (24) des Gehäuses (11) und der Auslass (15) an einem Umfangsbereich des Gehäuses (11) vorgesehen, wobei diese in quer, z. B. etwa rechtwinklig, zueinander gerichteten Gehäusebereichen enthalten sind (Fig. 3).

Figure imgaf001
The invention relates to an exhaust gas recirculation valve (10) comprising a housing (11), the interior of which (12) has an inlet (13) for exhaust gas to be introduced, an exhaust gas recirculation valve opening (14, 25) and an exhaust gas outlet (15) communicating with a valve member (30) controlling the valve opening (14, 25), movable between a closed position and an open position, and a throttle member (40) closing between the outlet (15) and releasing the same; Pivot axis (18) are such swivel-actuated that upon movement of the valve element (30) in the direction of its open position, the throttle element (40) is moved according to its closed position and vice versa and the outlet (15) befindlichem by means of the throttle element (40) in the open position Valve element (30) at least almost completely closed and befindlichem in the closed position Ventileleme nt (30) is open. The valve opening (14, 25) is provided on an end face (24) of the housing (11) and the outlet (15) on a peripheral portion of the housing (11), wherein these in transversely, for. B. approximately at right angles, facing each other housing areas are included (Fig. 3).
Figure imgaf001
EP06019126A 2006-02-21 2006-09-13 Exhaust gas recirculation valve Withdrawn EP1820956A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006007949A DE102006007949A1 (en) 2006-02-21 2006-02-21 Exhaust gas recirculation valve

Publications (2)

Publication Number Publication Date
EP1820956A2 EP1820956A2 (en) 2007-08-22
EP1820956A3 true EP1820956A3 (en) 2011-01-19

Family

ID=37876940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06019126A Withdrawn EP1820956A3 (en) 2006-02-21 2006-09-13 Exhaust gas recirculation valve

Country Status (2)

Country Link
EP (1) EP1820956A3 (en)
DE (1) DE102006007949A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020809A (en) * 1975-06-02 1977-05-03 Caterpillar Tractor Co. Exhaust gas recirculation system for a diesel engine
US5740785A (en) * 1997-06-09 1998-04-21 Southwest Research Institute Two way-high pressure loop, exhaust gas recirculation valve
US6000222A (en) * 1997-12-18 1999-12-14 Allied Signal Inc. Turbocharger with integral turbine exhaust gas recirculation control valve and exhaust gas bypass valve
DE19858626C1 (en) * 1998-12-18 2000-05-04 Mtu Friedrichshafen Gmbh Exhaust gas flap mechanism has a shell body forming the flap acting as a concave limit to direct the gas flow into one or another outlet for a controlled outflow or backflow action

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020809A (en) * 1975-06-02 1977-05-03 Caterpillar Tractor Co. Exhaust gas recirculation system for a diesel engine
US5740785A (en) * 1997-06-09 1998-04-21 Southwest Research Institute Two way-high pressure loop, exhaust gas recirculation valve
US6000222A (en) * 1997-12-18 1999-12-14 Allied Signal Inc. Turbocharger with integral turbine exhaust gas recirculation control valve and exhaust gas bypass valve
DE19858626C1 (en) * 1998-12-18 2000-05-04 Mtu Friedrichshafen Gmbh Exhaust gas flap mechanism has a shell body forming the flap acting as a concave limit to direct the gas flow into one or another outlet for a controlled outflow or backflow action

Also Published As

Publication number Publication date
DE102006007949A1 (en) 2007-08-23
EP1820956A2 (en) 2007-08-22

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