EP1342907A2 - Système de soupape - Google Patents

Système de soupape Download PDF

Info

Publication number
EP1342907A2
EP1342907A2 EP02026757A EP02026757A EP1342907A2 EP 1342907 A2 EP1342907 A2 EP 1342907A2 EP 02026757 A EP02026757 A EP 02026757A EP 02026757 A EP02026757 A EP 02026757A EP 1342907 A2 EP1342907 A2 EP 1342907A2
Authority
EP
European Patent Office
Prior art keywords
switching element
valve
control surface
valve device
valve rod
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
EP02026757A
Other languages
German (de)
English (en)
Other versions
EP1342907B1 (fr
EP1342907A3 (fr
Inventor
Andreas Köster
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
Publication of EP1342907A2 publication Critical patent/EP1342907A2/fr
Publication of EP1342907A3 publication Critical patent/EP1342907A3/fr
Application granted granted Critical
Publication of EP1342907B1 publication Critical patent/EP1342907B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M26/65—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
    • F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities

Definitions

  • the invention relates to a valve device, in particular for exhaust gas recirculation in an internal combustion engine, having a housing, an adjusting device, a drive, a valve rod or shaft, a switching element and a control surface.
  • valve devices With regard to the opening of a control surface and thus the fluidic connection from an inlet to an outlet channel of the valve, there are in particular two different options, either by lifting a switching element from the control surface as in the case of the globe valve or by rotating the switching element relative to the control surface, as a result of which defined through openings of the Switching element are placed exactly over the inlet channels or the inlet channel of the valve.
  • a rotary slide valve is described for example in the as yet unpublished patent application with the file number 10101412.0.
  • the function and design of globe valves is generally known.
  • a valve rod or shaft is driven as the axis of rotation of the switching element via a drive module.
  • the switching elements are generally circular and have through openings which correspond to the openings of a control surface when rotated and in this way establish the fluidic connection between the valve inlet opening and the valve outlet opening.
  • the object of the invention is to create a valve device with an adjusting device which reduces the wear on the sealing surfaces and at the same time eliminates sticking.
  • This object is achieved in that the switching element performs a combined lifting and rotating movement.
  • this lifting and rotating movement is realized by a link with a guide contour which contains a slope and a toggle which is positively guided in the guide contour and which is firmly connected to the valve rod.
  • the valve can now be opened or closed by rotating the valve rod or the axis of rotation and thus the permanently connected switching element via a drive.
  • a circumferential sealing and scraping edge around the through-openings of the switching element can now be used to loosen the sticking caused by the rotary movement and at the same time prevent permanent rubbing between the scraping edge and the control surface due to the lifting movement, which significantly reduces wear compared to a conventional rotary slide valve.
  • the advantages of the globe valve, in particular the low wear can be combined with the advantages of the rotary slide valve, in particular the possible shearing of bonds.
  • a further rotating movement is carried out.
  • This increases the coverage of the through openings in the switching element and in the fixed control surface, as a result of which the flow rate can be changed and also regulated.
  • Around the through openings on the switching element there are scraping edges that push possible dirt in the sealing area away when the valve closes due to the stroke and rotary movement and thus clean the sealing surfaces.
  • a sealing edge directly adjoining the scraping edge achieves the sealing effect between the switching element and the control surface.
  • An edge that combines sealing and scraping functions is also conceivable.
  • Closing the valve in the event of a malfunction of the system can be ensured by a return spring on the link.
  • valve device with adjusting device An embodiment of such a valve device with adjusting device is shown in the drawing and is described below.
  • Figure 1 shows a perspective view of the valve device with adjusting device in the fully open position.
  • Figure 2 shows a perspective view of the underside of the switching element and a cut part of the control surface.
  • valve device according to the invention with adjusting device shown in FIGS. 1 and 2 is usually located within a valve housing, not shown here.
  • a valve rod or shaft 1 which is located in the valve housing, is permanently connected on its first side to a switching element 2, at its second end to a drive, not shown here, usually an electric motor, which switches the switching element 2 via the Valve rod 1 starts rotating.
  • the switching element 2 has through openings 3 through which a fluid can flow when the valve is in the open position.
  • a bore 4 into which a toggle 5 is inserted by means of a press fit.
  • This gag 5 engages in a form-fitting manner in two guide contours 6 of a link 7, which in the present application example has the shape of a hollow cylinder.
  • the toggle 5 When the valve rod 1 is turned, the toggle 5 must exactly follow the contour 6 and with it the valve rod 1 or the switching element 2, which in the present case has a circular cross section.
  • the contour 6 In the first area 8, the contour 6 has a shape parallel to the switching element 2, so that the switching element 2 executes a pure rotary movement in this first area.
  • the contour 6 In the adjoining area 9, the contour 6 has a circumferential slope towards the switching element 2, so that the switching element 2 executes a combined rotary and lifting movement.
  • a control surface 10 on the side facing away from the valve rod 1, which is generally fixed and connected to the valve housing. This control surface 10 also has contoured through openings 13 which correspond to those of the switching element 2.
  • the toggle 5 follows the contour 6 in the region 9 and there is a combined lifting and rotating movement of the switching element 2. Contamination is removed from the control surface 10 by the rotary movement via the scraping edges 12 of the switching element 2. At the same time, a small gap is created by the slight lifting of the valve rod 1 with the switching element 2 by the guide contour 6, which is greatest when the end of the area 9 is reached by the toggle 5. This stroke movement prevents excessive friction between the scraping edges 12 of the switching element 2 and the control surface 10. During the further rotary movement of the valve rod 1 and thus of the switching element 2 in the area 8 of the guide contour 6, there is a growing overlap of the through openings 3, 13 of the switching element 2 and the control surface 10.
  • the fluid flow also increases from the inlet side to the outlet side of the valve.
  • the inlet side is here on the side of the control surface 10 facing away from the switching element 2, the outlet side of the valve on the side of the switching element 2 facing away from the control element 10.
  • the volume flow of the fluid can thus be changed and with appropriate control of the actuator can be regulated.
  • valve rod or shaft 1 is rotated in the opposite direction and accordingly first performs a pure rotary movement when passing the knob 5 in the area 8 and later when passing through the area 9 of the toggle a combined lifting and rotating movement.
  • contaminants are released from the control surface 10 by the scraping edges 12 of the switching element 2.
  • valve housing and the design of the link 7, guide contour 6, valve rod 1, switching element 2 and control surface 10 and the type of drive can be designed differently.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sliding Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lift Valve (AREA)
EP02026757A 2002-03-02 2002-11-29 Système de soupape Expired - Fee Related EP1342907B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10209335A DE10209335A1 (de) 2002-03-02 2002-03-02 Ventileinrichtung
DE10209335 2002-03-02

Publications (3)

Publication Number Publication Date
EP1342907A2 true EP1342907A2 (fr) 2003-09-10
EP1342907A3 EP1342907A3 (fr) 2006-04-19
EP1342907B1 EP1342907B1 (fr) 2009-04-15

Family

ID=27740609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02026757A Expired - Fee Related EP1342907B1 (fr) 2002-03-02 2002-11-29 Système de soupape

Country Status (3)

Country Link
EP (1) EP1342907B1 (fr)
DE (2) DE10209335A1 (fr)
ES (1) ES2323044T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378655A2 (fr) * 2002-07-02 2004-01-07 BorgWarner Inc. Soupape à gaz
EP1544449A1 (fr) 2003-12-19 2005-06-22 Cooper-Standard Automotive (Deutschland) GmbH Soupape de recirculation de gaz d'échappement
FR2894294A1 (fr) * 2005-12-01 2007-06-08 Renault Sas Dispositif de vanne de recyclage de gaz d'echappement
FR2905424A1 (fr) * 2006-09-05 2008-03-07 Renault Sas Dispositif de distribution de gaz pour un circuit egr, refroidisseur et procede de commande.
EP2143931A2 (fr) * 2008-07-10 2010-01-13 Hirschmann Automotive GmbH Système de soupape AGR
FR3019248A1 (fr) * 2014-04-01 2015-10-02 Valeo Sys Controle Moteur Sas Vanne a montage facilite d'un attelage dans une came

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046596A1 (de) * 2008-07-18 2010-01-21 Mahle International Gmbh Frischluftanlage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666124A (en) * 1986-04-29 1987-05-19 Johnston Pump/General Valve, Inc. Valve operator for a plug-type valve
FR2724976A1 (fr) * 1994-09-27 1996-03-29 Sagem Allumage Unite de controle de la quantite de gaz d'echappement recyclee dans un systeme de recirculation des gaz d'echappement d'un moteur a combustion interne
FR2772429A1 (fr) * 1997-12-16 1999-06-18 Sagem Vanne de controle pour systeme de recirculation des gaz d'echappement d'un moteur a combustion interne
DE19904622A1 (de) * 1999-02-05 2000-08-10 Audi Ag Steuerventil zur Rückführung von Abgas zum Frischgas einer Brennkraftmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666124A (en) * 1986-04-29 1987-05-19 Johnston Pump/General Valve, Inc. Valve operator for a plug-type valve
FR2724976A1 (fr) * 1994-09-27 1996-03-29 Sagem Allumage Unite de controle de la quantite de gaz d'echappement recyclee dans un systeme de recirculation des gaz d'echappement d'un moteur a combustion interne
FR2772429A1 (fr) * 1997-12-16 1999-06-18 Sagem Vanne de controle pour systeme de recirculation des gaz d'echappement d'un moteur a combustion interne
DE19904622A1 (de) * 1999-02-05 2000-08-10 Audi Ag Steuerventil zur Rückführung von Abgas zum Frischgas einer Brennkraftmaschine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378655A2 (fr) * 2002-07-02 2004-01-07 BorgWarner Inc. Soupape à gaz
EP1378655A3 (fr) * 2002-07-02 2006-08-02 BorgWarner Inc. Soupape à gaz
EP1544449A1 (fr) 2003-12-19 2005-06-22 Cooper-Standard Automotive (Deutschland) GmbH Soupape de recirculation de gaz d'échappement
US7182315B2 (en) 2003-12-19 2007-02-27 Cooper-Standard Automotive (Deutschland) Gmbh Exhaust-gas recirculation valve
FR2894294A1 (fr) * 2005-12-01 2007-06-08 Renault Sas Dispositif de vanne de recyclage de gaz d'echappement
FR2905424A1 (fr) * 2006-09-05 2008-03-07 Renault Sas Dispositif de distribution de gaz pour un circuit egr, refroidisseur et procede de commande.
WO2008029043A1 (fr) * 2006-09-05 2008-03-13 Renault S.A.S. Dispositif de distribution de gaz pour un circuit egr, refroidisseur et procede de commande
EP2143931A2 (fr) * 2008-07-10 2010-01-13 Hirschmann Automotive GmbH Système de soupape AGR
EP2143931A3 (fr) * 2008-07-10 2012-09-05 Hirschmann Automotive GmbH Système de soupape AGR
FR3019248A1 (fr) * 2014-04-01 2015-10-02 Valeo Sys Controle Moteur Sas Vanne a montage facilite d'un attelage dans une came
WO2015150692A1 (fr) * 2014-04-01 2015-10-08 Valeo Systemes De Controle Moteur Vanne à montage facilité d'un attelage dans une came

Also Published As

Publication number Publication date
ES2323044T3 (es) 2009-07-06
DE50213442D1 (de) 2009-05-28
EP1342907B1 (fr) 2009-04-15
DE10209335A1 (de) 2003-09-11
EP1342907A3 (fr) 2006-04-19

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