EP3269967B1 - Système de couplage rotatif d'un arbre de pivotement d'un dispositif de fermeture d'un clapet d'échappement à l'aide d'un organe d'entraînement - Google Patents

Système de couplage rotatif d'un arbre de pivotement d'un dispositif de fermeture d'un clapet d'échappement à l'aide d'un organe d'entraînement Download PDF

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Publication number
EP3269967B1
EP3269967B1 EP17178721.1A EP17178721A EP3269967B1 EP 3269967 B1 EP3269967 B1 EP 3269967B1 EP 17178721 A EP17178721 A EP 17178721A EP 3269967 B1 EP3269967 B1 EP 3269967B1
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EP
European Patent Office
Prior art keywords
coupling
positive
locking
coupling part
meshing
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EP17178721.1A
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German (de)
English (en)
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EP3269967A1 (fr
Inventor
Steffen Schmitt
Georg Wirth
Maximilian Kühnemund
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Eberspaecher Exhaust Technology GmbH and Co KG
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Eberspaecher Exhaust Technology GmbH and Co KG
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Priority claimed from DE102016114704.4A external-priority patent/DE102016114704A1/de
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Publication of EP3269967A1 publication Critical patent/EP3269967A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F02D9/06—Exhaust brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like

Definitions

  • the present invention relates to an exhaust flap according to the preamble of claim 1, wherein a pivot shaft of a flap panel is coupled by a coupling arrangement with a drive member for common rotation.
  • From the DE 10 2009 013 815 A1 is a coupling arrangement for coupling a drive shaft of a damper drive with a pivot shaft of a damper flap of an exhaust valve with a formed of wire material or the like, known C-shaped coupling element.
  • the coupling element engages in associated recesses of the drive shaft on the one hand and the pivot shaft on the other hand and thus produces a rotational coupling between these two components.
  • the two C-legs are biased in the coupling state in the direction away from each other and thus load the pivot shaft of the valve cover in the direction of the drive shaft or the damper drive away.
  • the US 6,598,619 B2 discloses an exhaust valve with a formed in the form of a drive shaft drive member and a coaxially arranged pivot shaft.
  • a coupling arrangement coupling the drive shaft with the pivot shaft for common rotational movement comprises a box-like coupling element.
  • An exhaust valve according to the preamble of claim 1 is known from DE 10 2014 017 523 A1 known.
  • a coupling arrangement of this known exhaust valve comprises a first coupling member coupled to a pivot shaft of a door panel for conjoint rotation about a pivot axis and having a plurality of coupling protrusions extending in the direction of the pivot axis and a disc-like second coupling member coupled to a drive member for common rotation.
  • the disc-like second coupling part has in his Outer peripheral portion in association with the coupling projections on coupling recesses, in which engage the coupling projections for establishing the coupling state.
  • a helical compression spring is arranged axially between these two coupling parts and is supported on these, so that the first coupling part and with this the thus rotationally fixed pivot shaft are biased away in the direction of the second coupling member and the thus rotationally fixed drive member.
  • an exhaust flap in particular for the exhaust gas flow of an internal combustion engine, according to claim 1.
  • the exhaust flap comprises a flap tube, a flap inside the flap tube on a pivotable about a pivot axis rotatable pivot shaft worn and a pivot drive for the pivot shaft with a drive member, further comprising a coupling assembly coupling the drive member to the pivot shaft for common rotation about the pivot axis.
  • the coupling arrangement comprises a first coupling element constructed with resilient material with a first coupling region designed for coupling to the pivot shaft and a second coupling part constructed with resilient material with a second coupling region designed for coupling to the drive element, wherein in the coupling state the first coupling part and the second coupling part in Drehkopplungs form-fitting engagement with each other and are resiliently supported together in the direction of the pivot axis.
  • the first coupling region is biased towards the pivot shaft and the second coupling region is biased towards the drive element, such that by the coupling arrangement, the pivot shaft is biased in the direction away from the drive member.
  • the first coupling part and the second coupling part are formed with sheet metal material, preferably sheet steel or titanium sheet.
  • sheet metal material is particularly advantageous because, because of its generally flat or ribbon-like cross-sectional structure, it provides a comparatively small cross-sectional area and consequently a comparatively large thermal resistance, and on the other hand has a comparatively large surface, so that heat absorbed from the area of the exhaust flap is efficient can be delivered to the environment.
  • the first coupling part and / or the second coupling part providing a body region providing its coupling region, preferably substantially plate-like and having at least two form-fitting engagement regions starting from the body region and angled relative to the body region.
  • the first coupling part and / or the second coupling part has two form-fitting engagement regions extending away from the body region.
  • the two form-fitting engagement regions may extend away from the body region in opposite directions with respect to the pivot axis.
  • At the first coupling part and / or at the second coupling part at least one form-fitting engagement region has at least one form-fitting engagement recess for positive engagement of a form-fitting engagement projection of a form-fit engagement region of the other coupling part, and / or in that at the first coupling part or / and at the second coupling part at least one form-fitting engagement region has at least one form-fitting engagement projection for positive-fit engagement in a form-fitting engagement recess of a form-fit engagement region of the other coupling part.
  • a particularly symmetrical with respect to the pivot axis configuration of the coupling parts can be achieved in that a coupling part of the first coupling part and second coupling part in its two Form gleicheingriffs Symposiumen each having at least one Form gleicheingriffsaussparung and the other coupling part of the first coupling part and second coupling part in its two Form gleicheingriffs Suiteen each at least one Form gleicheingvorsprung having.
  • a high variability in the joining of the two coupling parts to produce the positive locking engagement allows a design variant in which the first coupling part and the second coupling part in each form-fitting engagement region have at least one Form gleicheings Wegsaussparung and at least one Form gleicheings projection.
  • the at least one Form gleicheingriffsaussparung is arranged closer to the body portion of the coupling part than the at least one Form gleicheingvorsprung
  • each coupling region has a single form-fitting engagement recess or / and a single form-fitting engagement projection.
  • first coupling part and / or the second coupling part is formed like a star with a plurality of mutually spaced from the body region away form-fitting engagement regions and between these Form gleicheingriffs Symposiumen formed form-fitting engagement recesses for engagement of form-fitting engagement regions of the respective other coupling part.
  • the structure of a coupling arrangement according to the invention can be kept simple and inexpensive, that the two coupling parts are formed substantially identical to each other.
  • the above-mentioned bias of the two coupling regions respectively in the direction of the assembly to be coupled to rotate together pivot shaft or drive member according to the invention can also be used to produce a stable coupling between a respective coupling region and the assembly to be coupled therewith.
  • the first counter-form-fitting coupling formation is tapered in the direction of the drive member, and / or that the second counter-form-fitting coupling formation is tapered in the direction of the pivot shaft.
  • the Fig. 1 shows in side view a generally designated 10 and used for example in an exhaust system of an internal combustion engine exhaust flap with one of these associated damper drive 12.
  • the exhaust flap 10 includes a flap tube 14, in which a generally designated 16 damper cover on a pivot shaft 18 about a pivot axis A pivotally supported is.
  • the flap panel 16 comprises two flap wings 20, 22, which abut against blade stops 24, 26 provided on the inner periphery of the flap tube 14 when the flap aperture 16 is positioned in a blocking position.
  • the pivot shaft 18 is at its two axial end portions 28, 30 with respect to the Damper tube 14 by means of respective bearing assemblies about the pivot axis A rotatably or pivotally supported.
  • the pivot shaft 18 In its first axial end region 28, the pivot shaft 18 is coupled by means of a coupling arrangement 32 described below with a drive member 34 of the damper drive 12, for example a drive shaft, for common rotation. In this area, the pivot shaft 18 may be coupled directly or via a rotationally fixed component to the coupling assembly 32.
  • a first embodiment of a coupling arrangement 32 is in the Fig. 2 to 4 shown.
  • the coupling arrangement 32 comprises a first coupling part 36 which is coupled to the pivot shaft 18 for common rotation and a second coupling part 38 of identical construction and coupled to the drive member 34 for common rotation.
  • the two coupling parts 36, 38 are made of flat material or strip material, preferably of sheet metal material, as steel sheet, in particular spring steel sheet, or titanium sheet, constructed and provided by cutting from a plate-like sheet metal blank.
  • each of the two coupling parts 36, 38 in a central region comprises a plate-like body portion 40, wherein the body portion 40 of the coupling member 36 whose first coupling portion 42 is provided for rotationally fixed coupling to the pivot shaft 18 and the body portion 40 of the second coupling part 38 whose second coupling portion 44 is provided for rotationally fixed coupling to the drive member 34.
  • Each of the two coupling regions 42, 44 preferably includes a positive engagement coupling formation 46 which is rotationally coupled to a complementary shaped counter-form fit coupling formation 48 of the pivot shaft 18 and the drive member 34, respectively.
  • each form-fitting coupling formation 46 may have two recesses, for example circular-segment-like, in which complementary shaped projections of the associated counter-form-fitting coupling formation 48 engage. Since the two coupling parts 36, 38 are preferably identical to one another, are advantageously also on the pivot shaft 18 and am Drive member 34 provided counter-positive connection coupling formations 48 formed identical to each other.
  • each of the coupling parts 36, 38 has the form-fitting engaging portions 50, 52 angled with respect to the body portion 40 in the same axial direction. These, like the body region 40, can also be substantially planar.
  • a slot-like form-fitting engagement recess 54 is formed whose longitudinal extent is substantially orthogonal to the longitudinal extent of the entire coupling part 36 or 38.
  • a form-fitting engagement projection 56 extending in the direction of the body region 40 is formed. This is dimensioned so that it can be inserted into the Form gleicheingriffsaussparung 54 of the other body part.
  • the two coupling parts 36, 38 are mounted on the pivot shaft 18 and the drive member 34 so that their two body portions 40 are substantially mutually substantially parallel to the pivot axis A and substantially orthogonal, while the form-fitting engagement portions 50, 52 of the two coupling parts 36th , 38 are oriented to the respective other coupling part 38 and 36 to extend.
  • the form-fitting engagement projection 56 engages the form-fitting engagement region 52 of the first coupling part 36 in the form-fitting engagement recess 54 on the form-fitting engagement region 50 of the second coupling part 38.
  • the coupling projection 56 on the form-fitting engagement region 52 of the second coupling part 38 engages in the form-fitting engagement recess 54 on the form-fit engagement region 50 of the first coupling part 36. Since the form-fitting engagement projections 56 and form-fitting engagement recesses 54 are matched to one another in such a way that they engage one another substantially without play, a stable and defined rotational coupling of the two coupling parts 36, 38 is ensured.
  • FIG. 5 to 7 An alternative embodiment of a coupling arrangement is in the Fig. 5 to 7 shown. This corresponds largely to the preceding with respect to the Fig. 2 to 4 described embodiment. Components or regions which correspond to previously described components or regions are designated by the same reference numerals.
  • FIG. 8 Another alternative embodiment of a coupling arrangement or a coupling part thereof is in the 8 and 9 shown.
  • Components or areas corresponding to previously described components or areas, are denoted by the same reference numerals with the addition of an appendix "a".
  • these coupling parts 36a, 38a also comprise, for example, a plate-like body region 40a with the form-fit coupling formation 46a formed centrally therein for engagement of a respective counter-form-fitting coupling formation 48a of the pivot shaft 18a and the drive member 34a, respectively.
  • the two form-fitting engagement portions 50a and 52a respectively.
  • a respective mold-engaging recess 54a and a form-fitting engagement projection 56a In this case, the form-fitting engagement recess 54a of the above with reference to Fig. 4 correspond to described shape, so be slit-like, and are located slightly closer than the associated Form gleicheingvorsprung 56 a on the body portion 40 a.
  • the entire coupling assembly 32a are first brought into pivotal engagement with the pivot shaft 18a or the drive member 34a and then brought the thus provided assembly to the respective other assembly and the associated coupling member are brought into Drehkopplungseingriff ,
  • the above-described coupling arrangements or the coupling parts thereof can also be provided in a different configuration.
  • the body region could not be substantially planar, but curved, and with this curvature pass into the respective form-fitting engagement regions, so that, for example, the entire coupling part has a curvilinear configuration, in which equally the form-fitting engagement regions in the region of the form-fitting engagement projections provided thereon or Form-fitting engagement recesses are angled to the region in which the coupling regions are attached to the drive member or the pivot shaft.
  • a plurality of form-fitting engagement recesses and correspondingly also a plurality of form-fitting engagement projections could be provided in the form-fitting engagement regions, so that a tooth-like engagement of the two coupling parts with one another can be achieved.
  • Form gleicheingriffsaussparungen may be provided on one of the coupling parts in both Form gleicheingriffs Symposiumen, for example, and in FIG. 7 is shown by means of the form-fitting engagement recess 54, while form-fitting engagement projections are provided on the other coupling part in both form-fitting engagement regions.
  • the basic structure of such coupling parts corresponds to that in the Fig. 2-9 3, for example, having a plate-like body portion and form-fitting engagement portions extending angled away therefrom in either opposite end portion thereof with either mating engagement recesses or mating engagement protrusions.
  • each of the coupling parts 36b, 38b has a substantially star-like configuration with a respective plate-shaped body portion 40b and an outer peripheral portion thereof of a plurality of form-fitting engaging portions 58b extending from the body portion 40b circumferentially spaced with respect to the pivot axis A and angled relative to the body portion 40b on.
  • respective form-fitting engagement recesses 60b are provided in the circumferential direction between adjacent form-fitting engagement regions 58b.
  • the form-fitting engagement portions 58b of one of the two coupling parts 36b, 38b engage in the form-fitting engagement recesses 60b of the other coupling part 38b, 36b and are supported thereon in the direction of the pivot axis A.
  • the two coupling parts 36b, 38b are preferably constructed of resilient material, such as steel or titanium sheet, due to this resilient support of the two coupling parts 36b, 38b acting on the pivot shaft 18b axial load exerted, which this in a defined positioning biases.
  • the two coupling parts 36b, 38b could be provided with a different number of Form gleicheingriffs Suiteen 58b and form-fitting engagement recesses 60b.
  • the two coupling parts 36b, 38b could also be formed, at least in their respective body region 40b, with a structure deviating from the illustrated planar structure, for example, like a cup-shaped arched structure, and correspondingly arched in then continue the same with respect to the body portion 40b angled Form gleicheigns Scheme 58b.
  • Fig. 13 shows in their representations a) to d) different examples of the design of the drive member 34 and the pivot shaft 18 provided counter-positive connection coupling formations 48, which of course also in the in the Figures 8-12 illustrated embodiments can be used.
  • the positive-fit coupling formation 48 of FIG Fig. 13a is basically formed with a polygonal outer profile in the form of a triangle. Also the Fig. 13b ) shows a polygonal outer profile, here in the form of an external hexagon. It should be noted that, of course, a different number of corners or edges, for example, a 4-cornered or 5-angular configuration is possible.
  • the Fig. 13c shows a star-like configuration of the counter-positive connection coupling formation 48, which may be based, for example, on the geometry of a screwing tool to be used for a TORX screw head. It should be noted that in such a star-like configuration, the number of outwardly projecting tines may be different than in Fig. 13c ).
  • a structure is shown, for example, that in Fig. 5 can correspond to recognizable structure.
  • the counter-form-fitting coupling formation 48 here has two adjacent and axially projecting engagement regions, each with a semicircular circumferential geometry and mutual spacing.
  • the counter-interlocking coupling formation 48 may have a different number of such protrusions with different geometries.
  • the form-fitting coupling formations 46 are present the coupling parts 36, 38 complementary, so formed as correspondingly shaped and dimensioned openings, which ensure a substantially backlash-free recording of a respective counter-positive connection coupling formation 48.
  • An axial cohesion of the coupling parts 36, 38 with the pivot shaft 18 and the drive member 34 can be ensured on the one hand, that the coupling parts 36, 38 with their coupling portions 42, 44 on respective shoulder-like radial projections on the pivot shaft 18 and the drive member 34 axially support.
  • a fastening bolt such as bolts or rivet bolts are introduced, the, for example in conjunction with a washer, a respective coupling member 36 and 38 radially overlaps and thus prevents detachment of the same.
  • the Fig. 14 shows a particularly advantageous example of the design of the counter-positive connection coupling formations 48.
  • the axial end portions of the pivot shaft 18 and the drive member 34 to the respective other component to be tapered, for example, conically tapered formed. This can be done by anyone, especially with reference to the Fig. 13 explained forms of counter-positive connection coupling formations 48 are realized.
  • each of the coupling parts can first be assembled with the associated assembly, that is to say the exhaust flap or the flap drive. Thereafter, the damper drive with the second coupling part attached thereto can be brought to the already mounted on the exhaust flap first coupling member to make the engagement. Subsequently, the damper drive is determined for example by screwing.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (15)

  1. Clapet de gaz d'échappement, en particulier pour le courant de gaz d'échappement d'un moteur à combustion interne, comprenant un tube de clapet (14), un diaphragme de clapet (16) supporté à l'intérieur du tube de clapet (14) à un arbre de pivotement (18) pivotable autour d'un axe de pivotement (A) ainsi qu'un entraînement de pivotement (12) pour l'arbre de pivotement (18 ; 18a ; 18b) avec un membre d'entraînement (34), comprenant en outre un arrangement d'accouplement (32 ; 32a ; 32b) accouplant le membre d'entraînement (34 ; 34a ; 34b) avec l'arbre de pivotement (18 ; 18a ; 18b) pour une rotation commune autour de l'axe de rotation (A), l'arrangement d'accouplement (32 ; 32a ; 32b) comprenant une première pièce d'accouplement (36 ; 36a ; 36b) avec une première région d'accouplement (42 ; 42a ; 42b) adaptée pour l'accouplement à l'arbre de pivotement (18 ; 18a ; 18b) et une deuxième pièce d'accouplement (38 ; 38a ; 38b) avec une deuxième région d'accouplement (44 ; 44a ; 44b) adaptée pour l'accouplement au membre d'entraînement (34 ; 34a ; 34b), où dans l'état d'accouplement la première pièce d'accouplement (36 ; 36a ; 36b) et la deuxième pièce d'accouplement (38 ; 38a ; 38b) sont en engagement de complémentarité de forme d'accouplement rotatif, caractérisé en ce que les deux pièces d'accouplement (36, 38 ; 36a , 38a ; 36b, 38b) sont faites d'un matériau résilient et sont supportées l'une à l'autre de manière résiliente dans la direction de l'axe de pivotement (A), de sorte que la première région d'accouplement (42 ; 42a ; 42b) est précontrainte dans le sens de l'arbre de pivotement (18) et que la deuxième région d'accouplement (44 ; 44a ; 44b) est précontrainte dans le sens du membre d'entraînement (34) et en ce que l'arbre de pivotement (18) est précontrainte dans le sens opposé au membre d'entraînement (34) par l'arrangement d'accouplement (32a ; 32b).
  2. Clapet de gaz d'échappement selon la revendication 1, caractérisé en ce que la première pièce d'accouplement (36 ; 36a ; 36b) et la deuxième pièce d'accouplement (38 ; 38a ; 38b) sont adaptées avec du matériau de tôle, de préférence de la tôle d'acier ou de la tôle de titane.
  3. Clapet de gaz d'échappement selon la revendication 1 ou 2, caractérisé en ce que la première pièce d'accouplement (36 ; 36a ; 36b) ou/et la deuxième pièce d'accouplement (38 ; 38a ; 38b) comprennent une région de corps (40 ; 40a ; 40b) de préférence essentiellement en forme de plaque, prévoyant sa région d'accouplement (42, 44 ; 42a, 44a ; 42b, 44b), et, en partant de la région de corps (40 ; 40a ; 40b) incliné par rapport à la région de corps (40 ; 40a ; 40b) au moins deux régions d'engagement de complémentarité de forme (50 ; 52 ; 50a, 52a ; 58b).
  4. Clapet de gaz d'échappement selon la revendication 3, caractérisé en ce que la première pièce d'accouplement (36 ; 36a) ou/et la deuxième pièce d'accouplement (38 ; 38a) comprennent deux régions d'engagement de complémentarité de forme (50 ; 52 ; 50a, 52a) s'éloignant de la région de corps (40 ; 40a), où les deux régions d'engagement de complémentarité de forme (50 ; 52 ; 50a, 52a) s'étendent de la région de corps (40 ; 40a) dans des sens opposés par rapport à l'axe de pivotement (A).
  5. Clapet de gaz d'échappement selon la revendication 3 ou 4, caractérisé en ce qu'à première pièce d'accouplement (36 ; 36a) ou/et à la deuxième pièce d'accouplement (38 ; 38a) au moins une région d'engagement de complémentarité de forme (50 ; 50a) comprend au moins une encoche de complémentarité de forme (54 ; 54a) pour un engagement de complémentarité de forme d'une projection de complémentarité de forme (56 ; 56a) d'une région d'engagement de complémentarité de forme (52 ; 52a) de l'autre pièce d'accouplement (38, 36 ; 38a, 36a), ou/et en ce qu'à la deuxième pièce d'accouplement (38 ; 38a) au moins une région d'engagement de complémentarité de forme (52 ; 52a) comprend au moins une projection d'engagement de complémentarité de forme (56 ; 56a) pour un engagement de complémentarité de forme dans une encoche de complémentarité de forme (54 ; 54a) d'une région d'engagement de complémentarité de forme (50 ; 50a) de l'autre pièce d'accouplement (38, 36 ; 38a, 36a).
  6. Clapet de gaz d'échappement selon la revendication 5, caractérisé en ce qu'une pièce d'accouplement parmi la première pièce d'accouplement (36 ; 36a) et la deuxième pièce d'accouplement (38 ; 38a) comprend dans ses deux régions d'engagement de complémentarité de forme (50, 52 ; 50a, 52a) respectivement au moins une encoche de complémentarité de forme (54 ; 54a) et en ce que l'autre pièce d'accouplement parmi la première pièce d'accouplement (36 ; 36a) et la deuxième pièce d'accouplement (38 ; 38a) comprend dans ses deux régions d'engagement de complémentarité de forme (50, 52 ; 50a, 52a) respectivement au moins une projection d'engagement de complémentarité de forme (56 ; 56a).
  7. Clapet de gaz d'échappement selon la revendication 6, caractérisé en ce que la première pièce d'accouplement (36a) et la deuxième pièce d'accouplement (38a) comprennent dans chaque région d'engagement de complémentarité de forme (50a, 52a) au moins une encoche de complémentarité de forme (54a) et au moins une projection d'engagement de complémentarité de forme (56a).
  8. Clapet de gaz d'échappement selon la revendication 7, caractérisé en ce que dans au moins une région d'engagement de complémentarité de forme (50a, 52a) ladite au moins une encoche de complémentarité de forme (54a) est arrangée plus proche de la région de corps (40a) de la pièce d'accouplement (36a, 38a) que ladite au moins une projection d'engagement de complémentarité de forme (56a).
  9. Clapet de gaz d'échappement selon la revendication 5, caractérisé en ce qu'à la première pièce d'accouplement (36 ; 36a) et à la deuxième pièce d'accouplement (38 ; 38a) une région d'engagement de complémentarité de forme (50, 50a) comprend au moins une encoche de complémentarité de forme (54 ; 54a) et l'autre région d'engagement de complémentarité de forme (52, 52a) comprend au moins une projection d'engagement de complémentarité de forme (56 ; 56a), où de préférence des régions d'engagement de complémentarité de forme (50) comprenant au moins une encoche de complémentarité de forme (54) ne comprennent pas de projection d'engagement de complémentarité de forme (56) et où des régions d'engagement de complémentarité de forme (52) comprenant au moins une projection d'engagement de complémentarité de forme (50) ne comprennent pas d'encoche de complémentarité de forme (54).
  10. Clapet de gaz d'échappement selon une des revendications 5-9, caractérisé en ce que chaque région d'accouplement (50, 52 ; 50a, 52a) comprend une seule encoche de complémentarité de forme (54 ; 54a) ou/et une seule projection d'engagement de complémentarité de forme (56 ; 56a).
  11. Clapet de gaz d'échappement selon la revendication 3, caractérisé en ce que la première pièce d'accouplement (36b) ou/et la deuxième pièce d'accouplement (38b) est adaptée sous forme d'étoile avec une pluralité de régions d'engagement de complémentarité de forme (58b) espacées s'étendant de la région de corps (40b) et avec des encoches de complémentarité de forme (60b) formées entre lesdites régions d'engagement de complémentarité de forme (58b) pour l'engagement des régions d'engagement de complémentarité de forme (58b) de l'autre pièce d'accouplement respectif.
  12. Clapet de gaz d'échappement selon la revendication 11, caractérisé en ce que les encoches de complémentarité de forme (60b) sont adaptées en s'élargissant dans un sens s'éloignant de la région de corps (40b), ou/et en ce que les régions d'engagement de complémentarité de forme (58b) sont adaptées en se rajeunissant dans un sens s'éloignant de la région de corps (40b).
  13. Clapet de gaz d'échappement selon une des revendications 1-12, caractérisé en ce que les deux pièces d'accouplement (36, 38 ; 36a, 38a ; 36b, 38b) sont adaptées de manière essentiellement identique l'une à l'autre.
  14. Clapet de gaz d'échappement selon une des revendications précédentes, caractérisé en ce qu'une première contre-formation d'accouplement de complémentarité de forme (48 ; 48a ; 48b) est prévue à l'arbre de pivotement (18 ; 18a ; 18b) et en ce qu'une première formation d'accouplement de complémentarité de forme (46 ; 46a ; 46b) en engagement avec la première contre-formation d'accouplement de complémentarité de forme (48 ; 48a ; 48b) est prévue à la première région d'accouplement (42 ; 42a ; 42b) de l'arrangement d'accouplement (32 ; 32a ; 32b), et en ce qu'une deuxième contre-formation d'accouplement de complémentarité de forme est prévue au membre d'entraînement (34 ; 34a ; 34b) et en ce qu'une deuxième formation d'accouplement de complémentarité de forme en engagement avec la deuxième contre-formation d'accouplement de complémentarité de forme est prévue à la deuxième région d'accouplement de l'arrangement d'accouplement (32 ; 32a ; 32b), où de préférence au moins une formation d'accouplement de complémentarité de forme (46 ; 46a ; 46b) ou contre-formation d'accouplement de complémentarité de forme (48 ; 48a ; 48b) ont un profil externe polygonal ou un profil en étoile et où la contre-formation d'accouplement de complémentarité de forme (48 ; 48a ; 48b) ou la formation d'accouplement de complémentarité de forme (46 ; 46a ; 46b) associée ont un profil interne polygonal complémentaire ou un profil en étoile.
  15. Clapet de gaz d'échappement selon la revendication 14, caractérisé en ce que la première contre-formation d'accouplement de complémentarité de forme (48 ; 48a ; 48b) est adaptée en se rajeunissant dans un sens du membre d'entraînement (34), ou/et en ce que la deuxième contre-formation d'accouplement de complémentarité de forme est adaptée en se rajeunissant dans un sens de l'arbre de pivotement (18).
EP17178721.1A 2016-07-05 2017-06-29 Système de couplage rotatif d'un arbre de pivotement d'un dispositif de fermeture d'un clapet d'échappement à l'aide d'un organe d'entraînement Active EP3269967B1 (fr)

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DE102018123400A1 (de) * 2018-09-24 2020-03-26 Eberspächer Exhaust Technology GmbH & Co. KG Abgasklappe
DE102020118356A1 (de) * 2020-07-13 2022-01-13 Purem GmbH Abgasklappe

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DE7030430U (de) * 1970-08-13 1971-10-28 Zuendapp Werke Gmbh Vorrichtung zur uebertragung von drehmomenten
DE102006048678B4 (de) * 2006-10-14 2011-11-17 Pierburg Gmbh Kupplungsvorrichtung
WO2015078432A1 (fr) * 2013-11-30 2015-06-04 Kohlhage Automotive GmbH & Co. KG Unité soupape, notamment unité à clapet d'échappement pour véhicules à moteur
DE102014113332B3 (de) * 2014-09-16 2015-11-05 Smk Systeme Metall Kunststoff Gmbh & Co. Kg. Klappeneinrichtung

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