EP1338785A2 - Soupape de commande, notamment pour un moteur à combustion interne, pour la recirculation de gaz d'échappement controlé - Google Patents

Soupape de commande, notamment pour un moteur à combustion interne, pour la recirculation de gaz d'échappement controlé Download PDF

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Publication number
EP1338785A2
EP1338785A2 EP20020025157 EP02025157A EP1338785A2 EP 1338785 A2 EP1338785 A2 EP 1338785A2 EP 20020025157 EP20020025157 EP 20020025157 EP 02025157 A EP02025157 A EP 02025157A EP 1338785 A2 EP1338785 A2 EP 1338785A2
Authority
EP
European Patent Office
Prior art keywords
valve part
control valve
valve
valve according
passages
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
EP20020025157
Other languages
German (de)
English (en)
Other versions
EP1338785A3 (fr
EP1338785B1 (fr
Inventor
Bernd Dr.-Ing. Bareis
Mathias Dipl.-Ing. Elsässer (FH)
Franz Bender
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 EP1338785A2 publication Critical patent/EP1338785A2/fr
Publication of EP1338785A3 publication Critical patent/EP1338785A3/fr
Application granted granted Critical
Publication of EP1338785B1 publication Critical patent/EP1338785B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/48—EGR valve position sensors
    • 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
    • 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
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • 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
    • F02M26/72—Housings
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y10T137/4273—Mechanical cleaning
    • Y10T137/428—Valve grinding motion of valve on seat

Definitions

  • the invention relates to a control valve, in particular for a Internal combustion engine, for the controlled return of exhaust gas to the fresh gas Internal combustion engine with the features in the preamble of claim 1.
  • the first Valve part can be designed as a flat slide valve with a flat seat an outlet opening of the exhaust pipe cooperates, the flat seat of the Exhaust opening and the flat slide in an extension of the exhaust duct of the Valve housing are arranged.
  • the flat slide is over a rod of an actuator, e.g. an electromagnetic actuator, against a spring in Opening direction moves, the spring when the actuator is not actuated Brings the flat slide valve into the closed position so that there is no exhaust gas recirculation he follows.
  • the flat seat and the flat slide are made of materials with low Produced friction properties, which requires a low actuating force.
  • the Flat slide valve contains only one slide valve opening in the open position Cover is brought with the outlet opening, the slide opening determines the flow cross section of the outlet opening.
  • the Exhaust gas recirculation to the individual cylinders of the internal combustion engine also via Individual exhaust pipes take place, in which case the Flat slide valve for each individual exhaust pipe with an outlet opening in it Has slide opening.
  • the respective flat slide is in the direction of its Area extension and across the incoming exhaust gas by means of the rod the control device between the open position and the closed position postponed.
  • the flat slide valve lies flat on the end of the cross directed exhaust pipe, this end containing the outlet opening.
  • the invention has for its object a control valve of the beginning mentioned type to design as such a rotary slide valve that a low Rotational force required to adjust the rotatable valve part, thereby the Actuator can be made small, compact, light and inexpensive, and not just a little friction between them relative to each other rotatable valve parts and ease of rotation guaranteed but also a permanent accumulation of soot or the like Counteracts particles that could impair the operating mode.
  • the task is according to the control valve of the type mentioned Invention solved by the features in claim 1. This ensures that the contact surfaces on which the two valve parts lie against each other and at Slide the adjustment between the closed position and the open position Narrow areas are reduced. This enables smooth operation Relative movement between the two valve parts and thus a quick one Adjustment. Furthermore, any wear is minimal. The smoothness the adjustment movement makes it possible to use an actuator that is small, light, compact and inexpensive.
  • control valve according to the invention is small, compact, light and inexpensive. Due to small design and few used Individual components result in a low weight and low Production costs. Furthermore, the control valve is reliable with accompanying long life. Another advantage is that the control valve not only is insensitive to dirt, but a high positioning accuracy allows only slight valve leakage and that for valve actuation necessary actuating force or the necessary actuating torque constant over the Is the life of the control valve.
  • control valve 10 in particular for an internal combustion engine, shown according to a first embodiment, which is in the open position.
  • the control valve 10 is the controlled Recirculation of exhaust gas, which is in the lower area A in FIG. 1, namely the front side of the control valve 10, e.g. approximately axially parallel according to arrow 11, Coming from an exhaust gas recirculation line, not shown, is supplied that Control valve 10 passes and this transverse to the longitudinal central axis 12 at one Leaves the circumferential side according to arrow 13 and a not shown Line is mixed with the fresh gas of the internal combustion engine.
  • Exhaust gas recirculation valves are common in internal combustion engines.
  • the control valve 10 has a first valve part 14 and a second valve part 44, which are arranged at the lower end of Fig. 1 of the housing 9 and with a Side by side. Both valve parts 14, 44 each have passages 15 or 45 on. They are between each other about the longitudinal central axis 12 a in the passage of exhaust gas supplied in the direction of arrow 11, Fig. 1 shown open position and one blocking this passage, not shown closed position rotatable. Both valve parts 14, 44 are in the essentially plate-shaped, the first valve part 14 being stationary and the second valve part 44 is arranged rotatable relative thereto. Another, The embodiment not shown can also swap the relationships his. Because of the rotational adjustability of the second valve part 44, this provides represents a rotary valve.
  • the first valve part 14 is the Area that is between two successive in the circumferential direction Passages 15 extends, closed.
  • the first valve part 14 has a substantially flat smooth back 16, which is particularly in Fig. 4 is visible.
  • the opposite, in Fig. 1 down and to the second Valve part 44 facing front 17 of the first valve part 14 is in the area of Areas between two successive circumferential directions Passages 15 run, designed recessed.
  • the boundary edges 18, 19 and 20, which delimit a respective passage 15, run to one
  • the passages 15 protrude from the axial side of the first valve part 15 framing webs 21 or 22 or 23, which over the deeper surfaces protrude from the front 17.
  • the first valve part 14 is designed as a circular disk. It points you along of the circular rim 24 and a ring in the center Through hole 25, which is surrounded by an annular hub 26.
  • the Ring web 24 and the ring hub 26 are in the same direction and so far like the webs 21, 22 and 23 over and form with their respective narrow surface also a bearing surface for the second valve part 44, the back of which 46 rests on it and slides.
  • the passages 15 of the first valve part 14 and the passages 45 of the second Valve part 44 are approximately triangular segment-shaped and are designed such that two Triangular sides, which are about the boundary edges 18 and 19 in the passages 15 correspond, are directed essentially radially starting from the center and the other side of the triangle, which is roughly shaped by the arc Boundary edge 20 is specified by the corresponding Arc section of the circular edge is formed.
  • the passages 15 of the first Valve part 14 extends in the radial direction so far that the respective web there 23 coincides with the ring web 24 in this area.
  • the circulating Ring web 24 thus forms their arcuate in the area of the passages 15 Bridges 23.
  • the first valve part 14 has in the embodiment shown a total of three passages 15 on the same circumferential angular intervals follow one another so that the rectilinear boundary edges 18 in follow circumferential angular intervals of 120 °.
  • the other, approximately radial triangle side, which is defined by the boundary edge 19 is not straight but curved and is - 3 and 4 - in the direction of the rectilinear boundary edge 18 bulged out.
  • the webs 21 and 22 have sharp edges with respect to both web edges be designed.
  • the outer edge of the ring hub 26 and the inner edge of the curved web 23 can be formed with sharp edges.
  • This sharp-edged design together with the smooth back 46 of the second valve part 44, e.g. when it is rotated in Opening direction according to arrow 8 or in the opposite direction in the closing direction, not just a good seal along the webs 22 and 23, but a similar one achieved a scraping tool, by the possible particles adhering to the narrow surface of the webs 22 and 23, such as soot or the like.
  • the passages 45 of the second valve part 44 correspond in terms of their shape, Size and spatial arrangement of those of the first valve part 14, so that reference can be made to the relevant description.
  • the straight forward and corresponds to a diametrically extending boundary edge 18 in the second valve part 44, the boundary edge 48.
  • the other bulging Boundary edge 19 of the first valve part 14 corresponds to the second valve part 44 to the rectilinear boundary edge 48 within the valve part plane protruding boundary edge 49.
  • the boundary edge 20, which is the radial Limiting the passages 15 in the first valve part 14 causes, does not apply to second valve part; because this is designed as a wing disc, which at three in Circumferential direction in succession at equal angular intervals Passages 45 is three-winged.
  • the passages 45 are radially outward open towards and thus as approximately V-shaped spaces between two in Circumferential direction successive wings 57, 58 and 59 are formed.
  • the with its smooth back 46 on the narrow surfaces of the webs 21 to 24 and the second valve part 44 lying on the ring hub 26 is relative to the first valve part 14 from a closed position, not shown, in which each wing 57, 58 and 59 a passage 15 of the first valve part 14 completely covered and sealed completes, in the direction of arrow 8 in an open position and in the opposite direction back adjustable in the closed position.
  • the second valve member has the radially outer Transitional region of the arcuate boundary edge 49 in the adjoining arcuate section-shaped edge one in the direction of rotation protruding nose 60, 61 and 62 on when moving in the opening direction slides on the narrow surface of the ring land 24 and a particularly good one Has a cleaning effect similar to a scraping tool.
  • the boundary edges 48 and 49 can be formed with sharp edges on the back 46.
  • the first valve part 14 is on the end face of the bottom of FIG. 1 Housing 9 inserted into an annular seat 63, e.g. pressed.
  • the Attachment of the valve part 14 is preferably such that it is detachable and against another is interchangeable with a different geometry of the passages 15, so that the throughput characteristic and e.g. the maximum throughput of the control valve 10 can be easily changed.
  • the housing 9 has in Fig. 1st lower end at least one protrusion or edge 64 protruding so far to ensure that this also has its rear 46 on the first valve part 14 adjacent second valve part 44 and protrudes such that both valve parts 14 and 44 through this protruding edge or protrusions are protected.
  • the first valve part 14 is on the side facing away from the second valve part 44 is, by means of positive connection means 65, 66 with respect to the housing 9 secured against rotation.
  • connection means are at least one axially parallel projection 65 and receptacles 66 of the housing 9 and the first Valve part 14 is provided, which when inserting the first valve part 14 in the Ring seat 63 engage with each other.
  • a projection 65 on the housing side and on the rear 16 of the first Valve part 14 three receptacles 66 provided in the form of blind holes, one of which cooperates with the projection 65.
  • An adjusting shaft 67 which is used for the rotary adjustment of the second valve part 44 a drive device 68, e.g. a rotary magnet, can be driven.
  • Part of the drive device 68 is also only a schematic indicated electronic device 69 with position detection.
  • the Drive device 68 is located on the upper area of housing 9 in FIG. 1 attached, the adjusting shaft 67 in an embodiment not shown two coaxial parts connected by a coupling can exist or in a particularly advantageous manner according to the first Embodiment in Fig. 1 can be designed as a component by the Drive device 68 starting clutch-free up to the lower one in FIG. 1 End of the control valve 10 and the second valve part 44 there and still over this can go beyond.
  • the second valve part 44 is approximately floating, preferably detachable and replaceable, with respect to the housing 9 and Control shaft 67 held.
  • the actuating shaft 67 passes through the first valve part 14 its through hole 25 and also a central through hole 70 in the second valve part 44, which is also the centering of the latter in relation to the Actuating shaft 67 is used. Outside of the second valve part 44 is the end the control shaft 67 connected.
  • the first valve part 14 and / or the second valve part 44 is particularly advantageous formed from ceramic, in the embodiment shown in an advantageous Both valve parts are made of ceramic. It has been recognized that Ceramic material is inert, behaves poorly and soot or other particles does not attract as much as metallic material. Soot and similar particles could adhere to the ceramic material, but they are easier to remove or easier to peel off. The fact that both valve parts 14, 44 are made of ceramics, will thus prevent any undesirable adhesion and preventing sticking of soot or the like particles. The one with the other areas in contact, i.e.
  • the two Valve parts 44 and 14 have advantages in the design in ceramic different roughness to prevent them from sticking prevent superimposed surfaces.
  • the narrow surfaces of the first valve part 14 has a lower roughness than that resting thereon Have surface 46 of the second valve part 44.
  • the narrow surfaces of the webs 21 to 24 and the ring hub 26 are e.g. ground and polished and therefore smoother than the rear 46 of the other valve part 44, thereby causing sticking is counteracted and thereby for the actuating movement of the second Valve part 44 necessary to be applied by the drive device 68 Actuating forces can be reduced even further. This allows the drive device 68 made even smaller and lighter and possibly also more economical become.
  • the second valve part 44 When the second valve part 44 is made of ceramic, this can be done with the Actuator shaft 67 is not welded due to this material or by soldering get connected. A floating arrangement that is nevertheless a at least substantially play-free rotation between the adjusting shaft 67 and the second valve part 44 and allows a large tolerance range achieved in that at the end of the actuating shaft 67 a connecting member 71 is attached.
  • the attachment can be detachable or permanent, e.g. by Welding or soldering.
  • the connecting member 71 overlaps the first Valve part 14 facing away from the outside of the second valve part 44 and stands with the latter in rotary driving connection.
  • the second valve part is 44 by means of axial spring force, which is directed towards the first valve part 14, to the Front 17, namely the narrow surfaces of the webs 21 to 24 and the Ring hub 26, pressed.
  • This can be done by using a control shaft 67 or a Actuating shaft part axially acting spring can be reached.
  • the exemplary embodiment is the connecting member 71 itself as a spring member, e.g. as a leaf spring, by means of which the axial spring force itself the second valve part 44 is exerted. This has the advantage that one of the Drive device 68 up to the lower end of the control valve 10 in FIG.
  • the connecting element 71 in training as Spring member has several, e.g. three, radially striving, like leaf spring-like Arms 72 and a practically non-resilient center 73. Located in this there is a through hole 74 through which the end of the actuating shaft 67 passes is sufficient, which in this area is connected in a rotationally fixed manner to the connecting member 71 is.
  • the arms 72 are relatively narrow in relation to the center 73 and can therefore, when the connecting member 71 is thin-walled, bounce well so that the link 71 with a certain axial preload on the second Valve part 44 can attack in the fully assembled position.
  • the second valve part 44 has on the outside facing downward in FIG. 1 Recordings 75, which e.g. as radially directed, blind hole-like elongated holes are trained. These receptacles 75 are on the connecting link 71 provided, approximately as wide drivers 76 assigned to the ends of the Arms 72 are arranged and protrude from them approximately at right angles and approximately engage axially parallel and form-fit in the receptacles 75.
  • This Carriers 76 are e.g. formed from tabs that are approximately in the middle with a Slot 77 are provided and, if necessary, spring and compensating can work.
  • a spring 82 surrounding the actuating shaft 67 e.g. in shape a leg spring, arranged with one end on the housing 9 and with their other end engages the actuating shaft 67.
  • the spring 82 serves as Safety spring, which in the event of a possible failure of the drive device 68 the second valve part 44 in the closed position or, if desired, in the open position moves.
  • valve parts 14 and 44 are Valve parts 14, 44 formed as in the first embodiment, as well it is with the arrangement in the housing 9 and the actuating shaft 67 and the Connection of this with the second valve part 44. Because of all these details referred to the description of the first embodiment.
  • the feed channels 83, 84 are separated from one another by a web 85 which extends up to to the lower end of the control shaft 67, where to maintain the A small gap is left.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP20020025157 2002-02-23 2002-11-11 Soupape de commande, notamment pour un moteur à combustion interne, pour la recirculation de gaz d'échappement controlé Expired - Lifetime EP1338785B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002107922 DE10207922A1 (de) 2002-02-23 2002-02-23 Steuerventil, insbesondere für eine Brennkraftmaschine, zur gesteuerten Rückführung von Abgas
DE10207922 2002-02-23

Publications (3)

Publication Number Publication Date
EP1338785A2 true EP1338785A2 (fr) 2003-08-27
EP1338785A3 EP1338785A3 (fr) 2006-05-24
EP1338785B1 EP1338785B1 (fr) 2011-01-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020025157 Expired - Lifetime EP1338785B1 (fr) 2002-02-23 2002-11-11 Soupape de commande, notamment pour un moteur à combustion interne, pour la recirculation de gaz d'échappement controlé

Country Status (5)

Country Link
US (1) US6726174B2 (fr)
EP (1) EP1338785B1 (fr)
BR (1) BR0300220B1 (fr)
DE (2) DE10207922A1 (fr)
MX (1) MXPA02012952A (fr)

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EP1355057A3 (fr) * 2002-04-20 2005-11-16 Gustav Wahler GmbH u. Co.KG Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne
WO2007098854A1 (fr) * 2006-02-24 2007-09-07 Behr Gmbh & Co. Kg Soupape de regulation de l'ecoulement de gaz d'échappement d'un moteur a combustion interne, echangeur de chaleur destine au refroidissement deS gaz d'echappement, systeme dote d'au moins une soupape et d'au moins un echangeur de chaleur
WO2009103955A3 (fr) * 2008-02-19 2009-12-03 Isis Innovation Limited Machine à cycle stirling linéaire, multi-cylindres
EP2143931A2 (fr) * 2008-07-10 2010-01-13 Hirschmann Automotive GmbH Système de soupape AGR
WO2012082713A1 (fr) * 2010-12-13 2012-06-21 Honeywell International Inc. Unité de soupape rotative pour turbocompresseur
US20150000270A1 (en) * 2009-11-03 2015-01-01 Honeywell International Inc. Turbocharger With Bypass Valve Providing Complete Bypass Of The Turbine For Improved Catalyst Light-Off

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DE10344218B4 (de) * 2003-09-22 2014-10-23 Mahle Filtersysteme Gmbh Abgasrückführungsventil
DE10362332B4 (de) * 2003-09-22 2014-10-23 Mahle Filtersysteme Gmbh Abgasrückführungsventil
US7273068B2 (en) * 2004-01-14 2007-09-25 Honeywell International, Inc. Electric driven, integrated metering and shutoff valve for fluid flow control
US6945264B1 (en) 2004-07-09 2005-09-20 Zurn Industries, Inc. Flow control valve and method for using the same
US7182075B2 (en) * 2004-12-07 2007-02-27 Honeywell International Inc. EGR system
WO2006086419A1 (fr) * 2005-02-07 2006-08-17 Borgwarner Inc. Module de papillon de gaz d'echappement/valve de recirculation des gaz d'echappement pour moteur diesel
US7201360B2 (en) * 2005-02-16 2007-04-10 Fisher Controls International, Llc. Pneumatic device having a selectively variable orifice
FR2883038B1 (fr) * 2005-03-09 2010-08-27 Valeo Sys Controle Moteur Sas Dispositif de recirculation de gaz d'echappement comportant une vanne ayant un element de regulation decollable de son siege
FR2883037B1 (fr) * 2005-03-09 2010-08-27 Valeo Sys Controle Moteur Sas Dispositif de recirculation de gaz d'echappement comportant une vanne de regulation de debit et de raccordement selectif
US7526911B2 (en) * 2006-02-03 2009-05-05 Rolls-Royce Corporation Gas turbine engine fuel system with fuel metering valve
ES2320958B1 (es) * 2007-03-13 2010-03-11 Universidad Politecnica De Valencia Dispositivo de recirculacion de gases de combustion para motores turboalimentados, motor que comprende dicho dispositivo y vehiculo automovil que comprende dicho motor.
US7779865B2 (en) * 2007-04-20 2010-08-24 Kohler Co. Plumbing valve with undulating disk surface
EP2306054B1 (fr) 2009-10-01 2013-07-10 Wolfgang Barth GmbH & Co. KG Soupape à tiroir rotatif
US8479717B2 (en) * 2010-03-27 2013-07-09 Cummins, Inc. Three-way controllable valve
US8596243B2 (en) * 2010-03-27 2013-12-03 Cummins, Inc. Conical air flow valve having improved flow capacity and control
US8627805B2 (en) * 2010-03-27 2014-01-14 Cummins Inc. System and apparatus for controlling reverse flow in a fluid conduit
US8720423B2 (en) 2010-04-21 2014-05-13 Cummins Inc. Multi-rotor flow control valve
EP2423544A3 (fr) 2010-08-26 2014-12-17 Parker Hannifin Corporation Soupape rotative
US8974201B2 (en) * 2012-02-23 2015-03-10 Ge Oil & Gas Compression Systems, Llc Rotating compressor valve
DE102013112018B4 (de) 2013-10-31 2018-12-20 Pierburg Gmbh Ventilsystem für Verbrennungskraftmaschinen
EP3566236A2 (fr) * 2017-01-06 2019-11-13 Georoc International, Inc. Dispositif de distribution granulaire radioactif
CN116328467B (zh) * 2023-04-27 2024-01-05 湖南诚钰环保科技有限公司 一种钢厂用燃烧效率高的废气处理装置及其处理方法

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DE4204434C2 (de) 1992-02-14 2000-06-21 Pierburg Ag Steuerventil für Abgasrückführung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1355057A3 (fr) * 2002-04-20 2005-11-16 Gustav Wahler GmbH u. Co.KG Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne
WO2007098854A1 (fr) * 2006-02-24 2007-09-07 Behr Gmbh & Co. Kg Soupape de regulation de l'ecoulement de gaz d'échappement d'un moteur a combustion interne, echangeur de chaleur destine au refroidissement deS gaz d'echappement, systeme dote d'au moins une soupape et d'au moins un echangeur de chaleur
WO2009103955A3 (fr) * 2008-02-19 2009-12-03 Isis Innovation Limited Machine à cycle stirling linéaire, multi-cylindres
US8820068B2 (en) 2008-02-19 2014-09-02 Isis Innovation Limited Linear multi-cylinder stirling cycle machine
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
US20150000270A1 (en) * 2009-11-03 2015-01-01 Honeywell International Inc. Turbocharger With Bypass Valve Providing Complete Bypass Of The Turbine For Improved Catalyst Light-Off
US9322327B2 (en) * 2009-11-03 2016-04-26 Honeywell International Inc. Turbocharger with bypass valve providing complete bypass of the turbine for improved catalyst light-off
WO2012082713A1 (fr) * 2010-12-13 2012-06-21 Honeywell International Inc. Unité de soupape rotative pour turbocompresseur

Also Published As

Publication number Publication date
DE10207922A1 (de) 2003-09-04
EP1338785A3 (fr) 2006-05-24
EP1338785B1 (fr) 2011-01-05
BR0300220B1 (pt) 2012-04-03
DE50214848D1 (de) 2011-02-17
US20030160199A1 (en) 2003-08-28
US6726174B2 (en) 2004-04-27
MXPA02012952A (es) 2004-09-03
BR0300220A (pt) 2004-08-03

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