[go: up one dir, main page]

WO2019105853A1 - Dispositif à volet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement - Google Patents

Dispositif à volet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement Download PDF

Info

Publication number
WO2019105853A1
WO2019105853A1 PCT/EP2018/082322 EP2018082322W WO2019105853A1 WO 2019105853 A1 WO2019105853 A1 WO 2019105853A1 EP 2018082322 W EP2018082322 W EP 2018082322W WO 2019105853 A1 WO2019105853 A1 WO 2019105853A1
Authority
WO
WIPO (PCT)
Prior art keywords
flap
valve
carrier
spring element
spring
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.)
Ceased
Application number
PCT/EP2018/082322
Other languages
German (de)
English (en)
Inventor
Christian RÖMER
Christian Kirschner
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of WO2019105853A1 publication Critical patent/WO2019105853A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F02B37/186—Arrangements of actuators or linkage for bypass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • 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

Definitions

  • Valve flap device for a bypass valve of an exhaust gas turbocharger and exhaust gas turbocharger
  • the invention relates to a valve flap device for opening and closing a bypass valve, in particular a
  • Wastegate valve in an exhaust turbine or a Schubum air valve in a centrifugal compressor, an exhaust gas turbocharger also relates to an exhaust gas turbocharger with an aforementioned valve flap device, for an internal combustion engine.
  • Exhaust gas turbochargers are increasingly used to increase performance in automotive internal combustion engines. This happens more often with the aim of reducing the internal combustion engine with the same or even increased performance in size and weight and at the same time the consumption and thus the
  • the operating principle is to use the energy contained in the exhaust stream to increase a pressure in an intake tract of the engine and thus to effect a better filling of a combustion chamber of the combustion engine with air-oxygen.
  • Fuel such as gasoline or diesel, implemented per combustion process, so the performance of the engine can be increased.
  • the exhaust gas turbocharger arranged in the exhaust tract of the United combustion engine exhaust gas turbine, a arranged in the intake radial compressor and an interposed rotor bearing.
  • the exhaust gas turbine has a turbine housing and a turbine runner, which is arranged therein and driven by the exhaust gas mass flow.
  • the centrifugal compressor has a compaction tergephaseuse and a disposed therein, a boost pressure to build compressor impeller.
  • the turbine runner and the compressor runner are rotationally fixed on the opposite ends of a common shaft, the so-called rotor shaft arranged, thus forming the so-called turbocharger rotor.
  • the rotor shaft extends axially between the turbine runner and the compressor runner through the rotor bearing arranged between the exhaust gas turbine and the fresh air compressor and is radially and axially rotatably mounted therein, with respect to the rotor shaft axis.
  • driven by the exhaust gas mass flow turbine impeller drives the compressor impeller on the rotor shaft, whereby the pressure in the intake of the engine, based on the fresh air mass flow behind the centrifugal compressor, increased and thereby better filling the combustion chamber of each cylinder of an internal combustion engine with air-sour material is effected.
  • Wastegate valve is opened or closed controlled to pass a portion of the exhaust gas via a wastegate channel to the turbine over.
  • This bypass valve typically has a valve flap device.
  • a so-called thrust air valve used with the excess already ver dense fresh air is fed back from the compressor output in the inlet region of the compressor.
  • a by-pass valve may also have a corresponding valve flap device.
  • Corresponding valve flap devices often have a multi-part construction, consisting of a valve spindle which is rotatably mounted around its spindle axis in the respective housing (compaction tergeophuse / turbine housing) and is operatively connected to the actuation of the valve flap device on the outside of the respective housing with an actuator; one in Housing interior arranged on the valve spindle lever or crank element, hereinafter referred to as flap carrier, and arranged on the flap support valve flap, which rests sealingly on the respective valve seat in the closed state of the bypass valve.
  • valve carrier and valve flap Due to component tolerances, thermal expansion and deformation during operation at high temperatures and high closing forces, axial and radial clearance between valve carrier and valve flap are necessary to ensure a tight closing of the respective bypass valve during operation can.
  • the one hand required clearance on the other hand leads by possible relative movements between valve carrier and valve flap under excitation by the pulsie-generating fluid flow, in particular in the open state of the bypass valve, undesirable noise and increased wear.
  • the lever has a hinged flap, connected to the flap lever flap plate for opening and closing a Wastegatekanals, and a spring element, wherein the spring element between the flap lever and attached to the flap plate Disc is arranged and has an outer peripheral portion which is supported on a curved sliding contact surface of the flap lever.
  • EP 2 798 172 B1 discloses a flap device for a wastegate valve in which a damping element is arranged between a control lever on which the valve flap is arranged by means of a valve stem and a carrier plate which is connected to the valve stem of the valve flap.
  • document DE 10 2012 216 893 A1 discloses a flap valve having a spindle having a spindle arm and a flap plate arranged on the spindle arm with a mandrel passing through an opening formed in the spindle arm, the mandrel resting on the side of the flap facing away from the flap plate Spindle arm with a holding disc to sammenwirkt to hold the flap plate.
  • a plate spring is arranged, which has at least one bent tab on its outer edge, for centering the plate spring relative to the mandrel of the flap plate.
  • An object on which the invention is based it is thus to provide an alternative concept for a flap device of a Tur boladers, which allows efficient sealing of the wastegate channel, avoids the aforementioned disadvantages or weaknesses while ensuring a particularly low noise and low-wear operation.
  • a valve flap device for opening and closing a bypass valve of an exhaust gas turbocharger.
  • the valve flap device has a valve spindle, for rotatably supporting the valve flap device in the housing, or in a housing wall of the exhaust gas turbocharger, with a arranged on the valve spindle flap carrier.
  • the flap carrier in turn has a carrier top and a carrier base and a through-hole, example, a circular through hole extending from the carrier base to the top of the carrier through the flap carrier and having a central axis, on.
  • valve flap device on a valve flap, which has a cover plate with an outer circumference and a continuous center recess, and a flap plate, on the flap carrier facing the flap plate rear side a flap carrier pin is arranged.
  • the cover plate is annular and has a circular outer periphery with an outer diameter and, for example, a likewise designed as a circular through hole center recess.
  • the cover plate is arranged on the carrier top side concentric with the passage recess and the flap plate is arranged on the carrier base on the flap carrier, wherein the flap carrier pin from the carrier underside passed through the passage recess of the flap carrier and the Mittenaus recess of the cover plate and fixedly connected to the cover plate.
  • the flap carrier pin is adapted in example with its peripheral geometry of the through hole of the flap carrier.
  • the flap carrier journal has a journal central axis, which coincides or coincides with the center axis of the flap carrier journal in the through-passage of the flap carrier with its center axis.
  • the Klappenträ gerzapfen the valve flap and the through hole of the flap carrier is preferably sufficient clearance provided to allow the closing of the bypass valve, the orientation of the folding pentellers on the valve seat.
  • the valve flap element is characterized in that a spring gap is provided between the flap carrier and the valve flap, in which a spring element acting in the axial direction of the center axis of the passage recess is installed in a prestressed manner.
  • the spring element is received in the region of its outer edge in a spring element seat, which forms a radial stop for the spring element and thus holds the Fe derelement centered in a said center axis position.
  • the spring element seat extends within the spring derspaltes in the axial direction of the center axis over a portion of the gap height of the spring gap and thus limits the axial stroke of the spring element.
  • the exhaust gas turbocharger according to the invention for an internal combustion engine naturally has an exhaust gas turbine and a radial compressor.
  • a Ventilklap inventive penvoriques in particular according to one of the embodiments described above or below, used in a wastegate valve as the exhaust gas turbine or in a designed as a thrust air valve of the centrifugal compressor bypass valve.
  • This includes that both the Wastega te valve and the recirculation valve of the exhaust gas turbocharger may be formed according to the bypass valve according to the invention.
  • FIG. 1 shows a turbine housing of an exhaust gas turbocharger with a
  • Figure 2 is a schematically simplified sectional view of a
  • Figure 3 is a schematically simplified sectional view of a
  • Valve flap device according to an embodiment of the invention
  • Figure 4 is an enlarged partial section of Figure 3 for a clear representation of the arrangement of the Fe derelements and the spring element seat;
  • Figure 5 is a schematically simplified sectional view of a
  • Valve flap device according to another exemplary embodiment of the invention.
  • Figure 6 is a schematically simplified sectional view of a
  • FIG. 7 is a cal simplified simplified sectional view of a valve flap device according to another Ausry tion of the invention.
  • Figure 8 shows a detail of a valve stem with flap carrier for a valve flap device in two views, according to another embodiment of the invention.
  • Figure 9 shows a detail of a valve stem with flap carrier for a valve flap device in two views, according to another embodiment of the invention.
  • Figure 10 shows a detail of a valve stem with flap carrier for a valve flap device in two views, according to another embodiment of the invention.
  • Figure 11 is a three-dimensional view of a part of a
  • Valve spindle with flap carrier for a valve flap device substantially according to the imple mentation example of Figure 8 and
  • Figure 12 is a simplified schematic sectional view of an exhaust gas turbocharger according to an embodiment of the invention.
  • FIG. 1 shows a generic bypass valve with a valve flap device 50, according to the known prior art, using the example of a wastegate valve 29 in a turbine housing 21 of an exhaust gas turbocharger 1.
  • the insight into the turbine housing 21 takes place from the exhaust pipe side. end flange 27 forth on the closed wastegate valve.
  • the mounted in the housing wall of the turbine housing 21 valve stem 51, the arranged on the valve stem 51 flap support 52, the flap plate 55 arranged on the flap support 52 valve flap 54 and the deck disc 57, 52 arranged on the top of the flap carrier is and is firmly connected to the flap support pin 56 and so the valve flap 54 fixed to the flap carrier 52.
  • FIG. 2 shows a further illustration of a bypass valve with a valve flap device 50, again using the example of a wastegate valve 29, according to the prior art.
  • the cal simplified simplified sectional view shows all we sentlichen parts of such a bypass valve.
  • the exhaust gas mass flow AM enters the turbine housing 21 of the exhaust turbine 20 (here only indicated) a.
  • the exhaust gas mass flow AM is directed to the turbine wheel (not shown) and then exits through the Abgasab adoptedkanal 26 in the exhaust system (not shown) and through this in the environment.
  • the bypass channel 28, here a wastegate channel now connects directly to the Abgaszu guide channel 23 with the Abgasab manufacturedkanal 26.
  • the bypass channel 28 has a flat valve seat 28 a. To close the byte Passkanals 28, the valve flap 54 is placed with its flap plate 55 sealingly on the valve seat 28a.
  • valve flap 54 is fixed to a flap carrier 52 which is mounted on a valve spindle 51 and thus rotatable about the valve pin delwindachse 51 a.
  • a flap carrier 52 which is mounted on a valve spindle 51 and thus rotatable about the valve pin delwindachse 51 a.
  • the valve flap 54 is with its flap support pin 56, of the flap plate 55 facing side, passed through the Klap pengone 52 and the cover plate 57 and firmly connected to the cover plate 57, for example, welded or riveted. Between the cover plate 57 and the top of the flap carrier 52 (top of the carrier) designed as a plate spring spring element 60 is arranged, which is installed biased in the axial direction of the flap support pin 56 and so holds the valve flap 54 in position.
  • FIG. 3 shows an inventive embodiment of a valve flap device 50 in a schematically simplified sectional view.
  • the valve flap device 50 has a valve spindle 51 with a valve spindle rotational axis 51a for the rotatable mounting of the valve flap device 50 in the housing wall of the exhaust gas turbocharger.
  • a flap support 52 is arranged, with a carrier top side 52a and a carrier bottom 52b and a through-hole 53.
  • the through-hole 53 extends from the Crowun terseite 52b to the carrier top 52a through the flap support 52 therethrough and has a center axis 53a.
  • a cover plate 57 which is, for example, annular, and an outer circumference, in particular an outer diameter, and a continuous central recess 57a is disposed on the support top 52a concentric with the passageway 53 thereof.
  • a valve flap 54 is arranged at the flap carrier 52.
  • the valve flap 54 has a cover plate 57 and a folding penteller 55 with a flap support pin 56 which is arranged on the flap carrier 52 facing the flap plate rear side 55 a.
  • the flap carrier pin 56 is passed from the Trä gerunterseite 52b forth through the passage recess 53 of the flap carrier 52 and the middle recess 57a of the cover plate 57 and fixedly connected to the cover plate 57, for example by a welded ..
  • a spring gap 58 is provided between the flap carrier 52 and the valve flap 54, in which a in the axial direction of the central axis 53 a of the through-hole 53 acting Fe derelement 60 is installed biased.
  • the spring gap 58 is arranged between the carrier top side 52a and the cover disk 57, and the spring element seat 62 is arranged on the carrier top side 52a.
  • the spring element 60 is received in the region of its outer edge in the spring element seat 62, which forms a radial stop for the spring element 60 and thus holds the spring element 60 in a centered to said center axis 53a position.
  • the spring element seat 62 extends within the spring gap 58 in the axial direction of the center axis 53a over part of the gap height of the spring gap 58 and thus limits the axial stroke of the spring element 60. This is highlighted for clarity in Figure 4 enlarged.
  • the spring element seat 62 is formed by at least one protrusion 62b arranged on at least one spring gap base surface 62a on which the spring element rests and projecting relative to the spring gap base surface 62a the spring gap 58, that is, here radially within the outer periphery of the cover plate 57, is arranged is, thus forming the abutment for the protruding elevation 62b.
  • the protruding elevation 62b forms a radial stop for the spring element 60 and holds the spring element 60 in a centered position relative to said center axis 53a.
  • the projecting increase 62b extends only over part of the gap height of the spring gap 58.
  • the spring element 60 When loaded, the spring element 60 whose axial stroke is limited to the difference between the gap height of the spring gap and the height of the protruding increase 62b.
  • the spring element 60 is formed in the manner of a plate spring which rests in the region of its outer edge on the spring gap base surface 62a and the spring element seat 62.
  • the plate spring is designed in this example as a simple plate spring, but it can optionally be a double or multiple disc spring, so a combination of two or more disc springs used.
  • the spring gap 58 and the protruding elevation 62b are dimensioned so that they limit the stroke of the spring element 60 to less than 75% of the total spring travel.
  • the total spring travel is defined as the stroke of the spring element 60 of completely rebounded, so unloaded until fully compressed, so compressed to block.
  • FIGS 5 to 7 now show, in a similar representation and analogous to Figures 3 and 4, respectively an alternative imple mentation of the invention with respect to the arrangement of spring gap 58 and spring element seat 62.
  • the spring element 60 is still the spring element 60 as a executed two-plate spring, but can also be designed as a single or multiple plate spring or other alternative spring element.
  • the spring gap 58 is arranged between the carrier top side 52a and the cover plate 57 and the Federelementit z 62 is on, the Trä geroberseite 52a facing, cover plate bottom 57b ordered. Accordingly, there is the spring
  • the spring gap 58 is arranged between the carrier underside 52b and the flap plate rear side 55a and the spring element z 62 is arranged on the flap plate rear side 55a facing the carrier underside 52b. Accordingly, there is the spring
  • the spring gap 58 is disposed between the carrier base 52b and the flap plate rear side 55a and the Federelementsit z 62 is arranged on the Trä gerunterseite 52b. Accordingly, the spring gap base surface 62a and the protruded elevation 62b are located on the carrier lower side 52b and within the outer circumference and opposite to the flapper rear surface 55a, thus constituting the stopper for the protruding elevation 62b.
  • FIGS. 6 and 7 have the additional advantage that when the valve flap 54 is closed, the flap plate 55 sits softly on the valve seat 28a and the closing force increases progressively in accordance with the spring characteristic of the spring element 60, until finally the free stroke of the spring element 60 has been overcome and the stop between the flap plate 55 and flap carrier is reached. This has a positive effect on the wear of the valve seat.
  • FIGS. 8 to 10 different embodiments of the protruding elevation 62b in each case in two different views are shown in each case on the basis of a detail of a valve spindle 51 with the flap carrier 52 arranged thereon, by way of example for the embodiment of a valve flap device according to the invention shown in FIG.
  • the upper illustration in the respective figure shows the flap carrier 52 in frontal view (in the figures 8 and 9 cut), the lower representation in plan view.
  • the items shown differ essentially only by the under different execution of the on the carrier top 52 a arranged spring element seat 62nd
  • FIG. 8 shows a valve spindle 51 with the flap carrier 52 arranged thereon for a valve flap device according to the invention, the projection 62 b forming the spring element seat 62 being formed opposite the spring gap base surface 62 a, arranged through the inner edge, one in the surface of the carrier top side 52 a, In this case, the inner edge is formed concentrically around the center axis (53a) at least over partial sections of the circumference. Further advantageous here is a recess extending over a portion of the circumference 67 is provided, which releases the view of the spring element 60, in the assembled state, together.
  • This embodiment essentially corresponds to the embodiment also shown in FIGS. 3 and 4. This design is characterized by a particularly simple manufacturability.
  • Figure 9 shows a valve stem 51 with the flap support 52 disposed thereon, for a further valve according to the invention, wherein the, the spring element seat 62 forming, opposite the Federspaltbasis simulation 62 a projecting increase 62 b is formed, increased by a relative to the surface of the carrier top side 52 a, or segment-wise con centric about the center axis 53a circumferential web 63. It can also be separated from each other and spaced apart ordered, distributed over the circumference web portions may be arranged.
  • a recess 67 extending over a section of the circumference is provided, which releases the view of the spring element 60 in the assembled state.
  • Figure 10 shows a valve stem 51 with the flap support 52 disposed thereon, for a further embodiment of the inventions to the invention valve flap means, wherein the Fe derelementsitz 62 forming, opposite the Federspaltbasis simulation 62a projecting increase 62b is formed by at least three individual, distributed over a circumference 65 arranged
  • Centering pins 66 is formed, wherein the circular circumference 65 is arranged kon concentric with the central axis 53 a. These centering pins 66 likewise form, with their respective flanks facing the spring element 60, a respective radial stop for the spring element 60. Only three centering pins 66 are shown in FIG. 10; of course, more centering pins 66 can also be distributed along the circumference 65.
  • FIG. 11 shows a valve spindle 51 with the flap carrier 52 arranged thereon, for a further valve device according to the invention, in a three-dimensional view, wherein the spring element seat 62, as in FIG. 9, is formed by a raised web 63, which is raised relative to the spring gap base surface 62 a, which is concentric around the center axis 53 a at least Generalab sections of the circumference is formed circumferentially. It can be seen in Figure 11, that the web 63, at least one, over a portion of the circumference extending recess 67 which, even in the fully assembled state of the valve flap means, the view of the spring element 60 releases.
  • FIGS. 5 and 6 show schematically simplified an embodiment of an exhaust gas turbocharger 1 according to the invention in Thomasdar position.
  • the exhaust gas turbocharger 1 comprises an exhaust gas turbine 20, a centrifugal compressor 30 and a rotor bearing 40.
  • the exhaust gas turbine 20 is equipped with a wastegate valve 29, he inventive valve flap device 50 and an exhaust gas mass flow AM is indicated by arrows.
  • the Radi alver ashamedr 30 has a diverter valve 39 with a valve flap device 50 according to the invention and a fresh air mass flow FM is also indicated by arrows.
  • a so-called turbocharger rotor 10 of the exhaust gas turbocharger 1 has a turbine runner 12 (also referred to as a turbine wheel), a compressor runner 13 (also referred to as a compressor wheel) and a rotor shaft 14 (also referred to as a shaft).
  • the turbocharger rotor 10 rotates in operation about a rotor axis of rotation 15 of the rotor shaft 14.
  • the rotor axis 15 and simultaneously the turbocharger axis 2 are represented by the drawn center line Darge and characterize the axial alignment of the Abgastur boladers 1.
  • the turbocharger rotor 10th is mounted with its rotor shaft 14 by means of two radial bearings 42 and a thrust washer 43. Both the radial bearing 42 and the thrust washer 43 are supplied via oil supply channels 44 of a ⁇ lan circuit 45 with lubricant.
  • a conventional exhaust gas turbocharger 1 in general, a conventional exhaust gas turbocharger 1, as shown in Figure 12, a multi-part construction.
  • a can be arranged in the exhaust tract of the engine Turbi nengephaseuse 21, an arranged in the intake tract of the internal combustion engine compressor housing 31 and between the turbine housing 21 and the compressor housing 31, a bearing housing 41 with respect to the common turbocharger axis 2 arranged one behind the other and connected montagetechnisch.
  • Another structural unit of the exhaust gas turbocharger 1 is the turbocharger rotor 10, which has the rotor shaft 14, the turbine runner 12 arranged in the turbine housing 21 and the compressor wheel 13 arranged in the compressor housing 31.
  • the turbine runner 12 and the compressor runner 13 are opposed to each other Ends of the common rotor shaft 14 arranged and rotatably connected thereto.
  • the rotor shaft 14 extends in the direction of the turbocharger axis 2 axially through the bearing housing 41 and is rotatably mounted in this axially and radially about its longitudinal axis, the rotor axis of rotation 15, wherein the rotor axis of rotation 15 in the turbocharger axis 2, that coincides with this.
  • the turbine housing 21 has here a ring around the turbocharger axis 2 and the turbine runner 12 arranged, helically tapering towards the turbine runner 12 from the gas ring channel, a so-called exhaust gas 22 on.
  • This Ab gasflute 22 has a tangentially outwardly directed Abgaszu 1500kanal 23 with a manifold connecting piece 24 for connection to an exhaust manifold (not shown) of an internal combustion engine through which the exhaust gas mass flow AM flows into the respective exhaust gas 22 and then to the turbine wheel 12.
  • the turbine housing 21 further has an exhaust gas discharge channel 26 which extends from the axial end of the turbine runner
  • the compressor housing 31 further has a Frischluftzu- supply channel 36 which from the axial end of the compressor impeller
  • the compaction tergeophen 31 has a ring around the turbocharger axis 2 and the compressor impeller 13 arranged, helically tapering towards the compressor impeller 12 towards fresh air annular channel, a so-called fresh air flood 32.
  • This fresh air flood 32 has a fresh air discharge channel 33 directed tangentially outwards with a suction pipe connection pipe 34 for the purpose of Final to a fresh air manifold (not illustrated sets) of an internal combustion engine.
  • the fresh air mass flow FM sucked in by the fresh air filter system is sucked into the compressor housing 31 via the fresh air supply duct 36, compressed there by the compressor impeller 13 and under elevated pressure by an annular gap 38, which is designated as a diffuser and arranged circumferentially around the compressor impeller 32 into the fresh air flood 32 pressed and passed through the Frischluftab technologicalkanal 33 in the fresh air manifold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

L'invention concerne un dispositif à volet de soupape (50) servant à ouvrir et fermer une soupape de dérivation (29/39) d'un turbocompresseur à gaz d'échappement (1), ainsi qu'un turbocompresseur à gaz d'échappement équipé d'un tel dispositif à volet de soupape. Le dispositif à volet de soupape comprend un axe de soupape (51), un support de volet (52) disposé sur l'axe de soupape (51) et un volet de soupape (54) qui comprend un disque de recouvrement annulaire (57) et un plateau de volet (55) pourvu d'un tourillon de support de volet (56). Le plateau de volet (55) est disposé du côté inférieure (52b) du support de volet (52). Le tourillon de support de volet (56) est guidé, depuis le côté inférieur (52a) du support, à travers un évidement traversant (53) du support de volet (52) et un évidement central (57a) du disque de recouvrement (57), disposé du côté supérieur (52a) du support, et est relié de manière fixe à ce disque de recouvrement. Entre le support de volet (52) et le volet de soupape (54) est ménagé une fente à ressort (58) dans lequel un élément à ressort (60), agissant dans la direction axiale de l'évidement traversant (53), est logé de manière précontrainte dans un siège d'élément à ressort (62). Le siège d'élément à ressort (62) forme une butée radiale destinée à l'élément à ressort (60) pour maintenir celui-ci dans une position centrée et s'étend à l'intérieur de la fente à ressort (58) sur une partie de la hauteur de fente (58a) et délimite ainsi la course axiale de l'élément à ressort (60).
PCT/EP2018/082322 2017-11-29 2018-11-23 Dispositif à volet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement Ceased WO2019105853A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017221403.1A DE102017221403A1 (de) 2017-11-29 2017-11-29 Ventilklappeneinrichtung für ein Bypass-Ventil eines Abgasturboladers sowie Abgasturbolader
DE102017221403.1 2017-11-29

Publications (1)

Publication Number Publication Date
WO2019105853A1 true WO2019105853A1 (fr) 2019-06-06

Family

ID=64477158

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/082322 Ceased WO2019105853A1 (fr) 2017-11-29 2018-11-23 Dispositif à volet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement

Country Status (2)

Country Link
DE (1) DE102017221403A1 (fr)
WO (1) WO2019105853A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11136915B2 (en) 2019-12-05 2021-10-05 Borg Warner Inc. Wastegate assembly and turbocharger including the same
US11203970B2 (en) 2018-09-21 2021-12-21 Borgwarner Inc. Wastegate assembly
US11313271B2 (en) 2019-09-20 2022-04-26 Borg Warner Inc. Wastegate assembly
US11371423B2 (en) 2018-09-21 2022-06-28 Borgwarner Inc. Wastegate assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112313402B (zh) 2018-07-05 2022-05-31 株式会社Ihi 流量可变阀机构以及增压器
DE102023004498A1 (de) * 2023-11-08 2025-05-08 Mercedes-Benz Group AG Ventileinrichtung für eine Turbine eines Abgasturboladers sowie Turbine für einen Abgasturbolader

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012216893A1 (de) 2012-09-20 2014-04-03 Bosch Mahle Turbo Systems Gmbh & Co. Kg Klappenventil
DE112013002329T5 (de) * 2012-03-09 2015-01-22 Ihi Corporation Variabler Durchflussventil-Mechanismus und Fahrzeugturbolader
DE112013002861T5 (de) 2012-07-11 2015-02-19 Borgwarner Inc. Abgasturbolader
EP2798172B1 (fr) 2011-12-27 2015-10-14 Mitsubishi Heavy Industries, Ltd. Soupape de vanne de décharge et turbocompresseur à gaz d'échappement équipé d'une soupape de vanne de décharge
DE102016100900A1 (de) * 2016-01-20 2017-07-20 Ihi Charging Systems International Gmbh Verstellvorrichtung für einen Abgasturbolader und Abgasturbolader
DE102016002269A1 (de) * 2016-02-26 2017-08-31 Feinguss Blank Gmbh Ventilelement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7305670U (de) * 1973-05-10 Regel + Messtechnik Gmbh Ventilklappe
DE102011076361A1 (de) * 2011-05-24 2012-11-29 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ventileinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2798172B1 (fr) 2011-12-27 2015-10-14 Mitsubishi Heavy Industries, Ltd. Soupape de vanne de décharge et turbocompresseur à gaz d'échappement équipé d'une soupape de vanne de décharge
DE112013002329T5 (de) * 2012-03-09 2015-01-22 Ihi Corporation Variabler Durchflussventil-Mechanismus und Fahrzeugturbolader
DE112013002861T5 (de) 2012-07-11 2015-02-19 Borgwarner Inc. Abgasturbolader
DE102012216893A1 (de) 2012-09-20 2014-04-03 Bosch Mahle Turbo Systems Gmbh & Co. Kg Klappenventil
DE102016100900A1 (de) * 2016-01-20 2017-07-20 Ihi Charging Systems International Gmbh Verstellvorrichtung für einen Abgasturbolader und Abgasturbolader
DE102016002269A1 (de) * 2016-02-26 2017-08-31 Feinguss Blank Gmbh Ventilelement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11203970B2 (en) 2018-09-21 2021-12-21 Borgwarner Inc. Wastegate assembly
US11371423B2 (en) 2018-09-21 2022-06-28 Borgwarner Inc. Wastegate assembly
US11313271B2 (en) 2019-09-20 2022-04-26 Borg Warner Inc. Wastegate assembly
US11136915B2 (en) 2019-12-05 2021-10-05 Borg Warner Inc. Wastegate assembly and turbocharger including the same

Also Published As

Publication number Publication date
DE102017221403A1 (de) 2019-05-29

Similar Documents

Publication Publication Date Title
WO2019105853A1 (fr) Dispositif à volet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement
DE102017202137B4 (de) Klappeneinrichtung zum Öffnen und Schließen eines Wastegatekanals in einem Turbinengehäuse eines Turboladers sowie Turbolader
WO2019072486A1 (fr) Dispositif clapet de soupape pour une soupape de dérivation d'un turbocompresseur à gaz d'échappement et turbocompresseur à gaz d'échappement
DE102018221812B4 (de) Abgasturbine mit einer Abgasleiteinrichtung für einen Abgasturbolader und Abgasturbolader
DE102011089777A1 (de) Abgasturbolader mit zumindest einem Bypass-Ventil
DE112012000810T5 (de) Aktuatorachsmanschette
DE102017216324A1 (de) Verdichter für eine Aufladevorrichtung einer Brennkraftmaschine, Drosselmodul und Aufladevorrichtung für eine Brennkraftmaschine
EP2193257B1 (fr) Turbocompresseur pour un moteur à combustion interne
WO2018029027A1 (fr) Vanne de dérivation à tablier de clapet pour turbocompresseur et turbocompresseur comprenant une vanne de dérivation de ce type
DE102012209562A1 (de) Turbinengehäuse für einen Abgasturbolader
WO2020001805A1 (fr) Turbocompresseur de gaz d'échappement avec couronne directrice centrée
DE102008000508A1 (de) Abgasturbolader mit verstellbarer Turbinengeometrie
DE10149287A1 (de) Abgas-Turbolader für eine Brennkraftmaschine mit einer schaltbaren Abgas-Turbolader-Anordnung
DE102012001236A1 (de) Leiteinrichtung für eine Turbine eines Abgasturboladers
DE102016214840B4 (de) Bypass-Ventil mit Ventilsitzschürze für einen Abgasturbolader und Abgasturbolader mit einem solchen Bypass-Ventil
DE112014005019T5 (de) Drehendes Wastegate-Ventil
EP1715162B1 (fr) Système d'évacuation des gaz d'échappement d'un moteur à combustion interne et clapet d'obturation pour un système d'évacuation des gaz d'échappement
DE102015209929A1 (de) Laufradgehäuse für einen Abgasturbolader mit einem einen Ventilsitzring aufweisenden Bypass-Ventil sowie Abgasturbolader und Montageverfahren
DE102016004770B4 (de) Anschlaganordnung, Ansaug- und Abgasanlage und Fahrzeug umfassend solch eine Anlage
EP3867505B1 (fr) Turbine d'échappement d'un turbocompresseur avec une vanne de détournement étanchéifiée et turbocompresseur
DE102017201916A1 (de) Wastegateklappe zum Öffnen und Schließen eines Wastegatekanals eines Turboladers, Klappeneinrichtung und Turbolader
WO2018019589A1 (fr) Dispositif clapet permettant d'ouvrir et de fermer un conduit de soupape de décharge dans un carter de turbine d'un turbocompresseur, turbocompresseur et procédé de fabrication
AT521954A4 (de) Vorrichtung zur Abgasführung für eine Brennkraftmaschine
WO2018177864A1 (fr) Turbocompresseur pour un moteur à combustion interne ainsi que carter de turbine
DE102018209078A1 (de) Turbine für einen Abgasturbolader, Abgasturbolader für eine Antriebseinrichtung sowie entsprechende Antriebseinrichtung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18808317

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18808317

Country of ref document: EP

Kind code of ref document: A1