WO2024255965A2 - Boîtier multifonction et chaîne cinématique d'essieu électrique - Google Patents

Boîtier multifonction et chaîne cinématique d'essieu électrique Download PDF

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Publication number
WO2024255965A2
WO2024255965A2 PCT/DE2024/100523 DE2024100523W WO2024255965A2 WO 2024255965 A2 WO2024255965 A2 WO 2024255965A2 DE 2024100523 W DE2024100523 W DE 2024100523W WO 2024255965 A2 WO2024255965 A2 WO 2024255965A2
Authority
WO
WIPO (PCT)
Prior art keywords
housing body
multifunctional
central housing
central
valve
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.)
Pending
Application number
PCT/DE2024/100523
Other languages
German (de)
English (en)
Other versions
WO2024255965A3 (fr
Inventor
Lars Schumann
Torsten PIEPER
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202480030493.5A priority Critical patent/CN121079216A/zh
Publication of WO2024255965A2 publication Critical patent/WO2024255965A2/fr
Publication of WO2024255965A3 publication Critical patent/WO2024255965A3/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/03—Lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/05—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/10—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/102—Shaft arrangements; Shaft supports, e.g. bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/105—Valve bodies; Mounting of hydraulic controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02026—Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox

Definitions

  • the invention relates to a multifunctional housing for accommodating components of an electric axle drive train for a motor vehicle.
  • the invention further relates to an electric axle drive train for a motor vehicle with such a multifunctional housing.
  • This article describes a drive unit for an axle of a vehicle, which includes an electric motor that is arranged concentrically and coaxially to a bevel gear differential, with a switchable 2-speed planetary gear set arranged in the power train between the electric motor and the bevel gear differential, which is also positioned coaxially to the electric motor or the bevel gear differential or spur gear differential.
  • the drive unit is very compact and, thanks to the switchable 2-speed planetary gear set, allows a good compromise between climbing ability, acceleration and energy consumption.
  • Such drive units are also referred to as e-axles or electrically operated axle drive trains.
  • the German patent application DE 10 2018 124 220 A1 discloses an electric pump actuator, in particular for actuating a clutch, in particular in the drive train of a motor vehicle, comprising a pump and an electric motor, wherein the pump and the electric motor are formed in a one-piece housing which has a closable mounting opening on at least one end face.
  • German patent application DE 10 2021 129 917 A1 discloses an exhaust manifold for an engine, comprising: a plurality of exhaust manifold pipes which couple a plurality of cylinder exhaust outlet openings to an exhaust outlet opening, wherein the plurality of exhaust manifold pipes have at least one first exhaust passage and a second exhaust passage at the exhaust outlet opening; an upper cooling jacket positioned vertically above the first exhaust passage; a lower cooling jacket positioned vertically below the one central cooling jacket positioned vertically below the first exhaust passage and vertically above the second exhaust passage.
  • the object of the invention is to simplify the provision of different fluids in an electric axle drive train for a motor vehicle.
  • the task is solved in a multifunctional housing for accommodating components of an electric axle drive train for a motor vehicle in that the multifunctional housing comprises a central housing body in which fluid channels for different fluids are integrated.
  • the electric axle drive train comprises at least one traction machine, power electronics and a transmission.
  • the central housing body with the fluid channels significantly simplifies the implementation of different fluid circuits for supplying the components of the electric axle drive train with different fluids. Bores and labyrinths for representing the fluid circuits are preferably designed as cast geometries. Depending on the required accuracy, for example in the area of valve seats, mechanical, in particular machining, post-processing may be necessary. According to a further aspect, filters required in the fluid circuits are integrated into the fluid channels.
  • the filters are advantageously arranged in the fluid channels in such a way that they can be easily replaced after dismantling peripheral components.
  • the multifunctional housing claimed can be used to create an electric axle drive train that includes cooling and air conditioning components in addition to the traction machine, transmission and power electronics.
  • the different fluids include at least one cooling and/or lubricating medium and another medium that is compressible, at least in certain states.
  • a preferred embodiment of the multifunctional housing is characterized in that the central housing body comprises bearing receptacles for at least two transmission shafts.
  • the central housing body preferably serves to represent design of a transmission housing body.
  • This transmission housing body has a transmission side with which the central housing body can be attached to a transmission housing with a transmission.
  • the central housing body advantageously has a traction machine side facing away from the transmission side, on which the traction machine is attached to the central housing body.
  • the bearing receptacles for the at least two transmission shafts are advantageously supplied with a suitable cooling and/or lubricating medium via the fluid channels.
  • a further preferred embodiment of the multifunctional housing is characterized in that the central housing body comprises fluid channels for a cooling and/or lubricating medium.
  • the cooling and/or lubricating medium is, for example, an oil that is suitable for both lubricating and cooling, in particular of gear components such as bearing components.
  • the fluid can also be water, which is mainly used for cooling.
  • the cooling and/or lubricating medium is preferably an incompressible medium.
  • a further preferred embodiment of the multifunctional housing is characterized in that the central housing body comprises fluid channels for a coolant.
  • the coolant is preferably a medium that is compressible, i.e. in particular gaseous, at least in certain states.
  • the fluid channels for the coolant preferably serve to represent a coolant circuit, for example for an air conditioning system, in the central housing body.
  • a further preferred embodiment of the multifunctional housing is characterized in that the central housing body has an attachment interface for an accumulator and/or a filter device.
  • the accumulator is preferably assigned to the refrigerant circuit of the air conditioning system.
  • the attachment interface for the accumulator is preferably provided on the traction machine side of the central housing body. This simplifies the connection of the accumulator.
  • the attachment interface for the optional filter device is preferably a recess which, for example, is provided for this purpose in an air-conditioning system. id channel or at the end of a fluid channel.
  • the filter device is preferably a line-integrated filter. For this purpose, a seat for this line-integrated filter is advantageously provided in a line to be equipped with the filter.
  • a further preferred embodiment of the multifunctional housing is characterized in that the central housing body has mounting surfaces for at least two valve plates, which in combination with the fluid channels in the central housing body represent fluidically separated fluid circuits for different fluids.
  • One of the valve plates in combination with corresponding fluid channels in the central housing body preferably serves to represent a lubrication and/or cooling circuit in the multifunctional housing.
  • the other valve plate in combination with corresponding fluid channels in the central housing body preferably serves to represent a refrigerant circuit in the multifunctional housing.
  • the valve plates are attached to the central housing body at least fluid-pressure-tight, preferably with the interposition of suitable sealing devices. Different joining techniques, such as screwing, gluing, welding or soldering, can be used to attach the valve plates.
  • the fluid channels preferably extend in a main direction, which is referred to as the longitudinal direction, for example.
  • Cross holes to represent functional circuits are preferably short. All hole openings are preferably part of the respective fluid circuit.
  • the fluid circuit is closed or covered by the aforementioned sealing devices or valve plates. This offers the advantage that separate closure elements and correspondingly precise connection geometries can be omitted.
  • a further preferred embodiment of the multifunctional housing is characterized in that the valve plates have mounting surfaces for a lead frame.
  • connections to the multifunctional housing can advantageously be made in just one single assembly step.
  • the connections advantageously include a large part of the required electrical and/or fluid connections.
  • the connections Connections include supply interfaces, sensor interfaces and line interfaces. All connections are advantageously designed as plug connections.
  • the plug connections are particularly advantageously aligned in one direction. This means that all required electrical contacts and all required fluid connections can be made with and/or on the stressed lead frame in a single assembly step.
  • valve plates and the central housing body have mounting interfaces for valve devices.
  • the valve devices comprise different components.
  • the components are, for example, so-called cartridge valves, holding magnets or other valves or valve elements, in particular check valves.
  • the valve plates and the central housing body advantageously comprise connection interfaces or mounting interfaces for pumps or compressors.
  • the valve devices are preferably integrated into the valve plates. However, it is also possible to connect individual valve devices to the central housing body via a separate interface.
  • a further preferred embodiment of the multifunctional housing is characterized in that the valve plates and the central housing body have connection interfaces for fluid lines. These connection interfaces are preferably standardized.
  • the connection interfaces on the valve plates and the central housing body are advantageously arranged and aligned in such a way that connection is particularly advantageously made possible in just a single assembly step.
  • an electric axle drive train for a motor vehicle with a multifunctional housing as described above.
  • the electric axle drive train preferably comprises at least one electric traction machine, which can be or is connected to at least one wheel of the motor vehicle via a transmission.
  • the transmission and the electric traction machine are arranged at least for cooling and/or lubrication in a fluid system is integrated, which is implemented using the multifunctional housing described above.
  • the claimed electric axle drive train advantageously also includes cooling and air conditioning components with fluid circuits that are integrated into the multifunctional housing.
  • the invention also relates to at least one separately tradable individual part for a multifunctional housing as described above.
  • Figure 1 is a perspective view of a central housing body of a multifunctional housing looking towards a traction machine side;
  • Figure 2 shows the central housing body from Figure 1 with a view towards one side of the gearbox
  • Figure 3 is the same view as in Figure 1, with two valve plates and a lead frame mounted on the central housing body;
  • Figure 4 is the same view as in Figure 2, with the two valve plates and the lead frame mounted on the central housing body;
  • Figure 5 is an enlarged detail of Figure 3 without the ladder frame
  • Figure 6 shows a section through one of the valve plates in Figure 4.
  • Figure 7 is an enlarged view of a mounting surface for one of the valve plates on the central housing body in a plan view.
  • Figures 1 to 6 show a multifunctional housing 10 with a central housing body 1 in different perspectives and views.
  • the multifunctional housing 10 serves to accommodate components of an electric axle drive train 40.
  • the multifunctional housing 10 with the central housing body 1 comprises a traction machine side 29 facing a traction machine, which can be seen in Figures 1 and 3, and a transmission side 30 facing a transmission, which can be seen in Figures 2 and 4.
  • the multifunctional housing 10 is designed in several parts and, in addition to the central housing body 1, comprises two valve plates 2, 3, a ladder frame 4 and an accumulator 5.
  • the valve plate 2, together with the central housing body 1 and the ladder frame 4, serves to represent a labyrinth-like fluid circuit for a hydraulic medium, which is also referred to as oil for short.
  • the corresponding fluid circuit is therefore also referred to as an oil circuit.
  • the valve plate 3 together with the central housing body 1 and the lead frame 4, serves to represent a fluid circuit for a refrigerant that is independent of the oil circuit.
  • This fluid circuit is therefore also referred to as a refrigerant circuit.
  • the oil circuit is fluidically separated from the refrigerant circuit in the central housing body 1.
  • the central housing body 1 has on its traction machine side 29 an attachment interface 20 for the accumulator 5, which in turn is shown in Figure 3.
  • the central housing body 1 has on its traction machine side 29 four attachment elements 6, 7, 8, 9 for the traction machine arranged on a pitch circle.
  • the attachment elements 6 to 9 serve in particular to center the traction machine in the installed state and to support it during the transmission of torque.
  • the central housing body 1 has a mounting surface 11 for the valve plate 2 at the top.
  • the mounting surface 11 for the valve plate 2 comprises a labyrinth of fluid channels 66 which, together with corresponding fluid channels in the central housing body 1, serve to represent the oil circuit.
  • the oil circuit comprises line connections 12 and 13 on the traction machine side 29 of the central housing body 1.
  • the line connection 12 is, for example, a cooling oil return.
  • the line connection 13 is, for example, a cooling oil inlet.
  • the cooling oil is provided, for example, by a suitable pump. The cooling oil is then fed, for example, to a heat exchanger via the line connection 12.
  • the central housing body 1 has a mounting surface 15 for the valve plate 3.
  • the mounting surface 15 comprises a labyrinth of fluid channels 65 which, together with corresponding fluid channels in the central housing body 1, serve to represent the refrigerant circuit.
  • the central housing body 1 has a power connection 16 at the top in Figure 1.
  • the refrigerant circuit has connection interfaces 21, 22 and 23 on the gear side 30, as can be seen in Figure 2. Between the connection interfaces 21 and 23, a sensor connection 25 is also provided on the gear side 30 of the central housing body 1.
  • the central housing body 1 is equipped with valve seats 17, 18, 19 of valve devices for the refrigerant circuit.
  • Two transmission interfaces 27, 28 serve in the central housing body 1 for passing through transmission shafts, of which a transmission shaft 31 is shown in Figure 3.
  • the transmission shaft 31 is preferably a transmission input shaft.
  • the transmission input shaft serves to represent a drive connection with a rotor of the traction machine.
  • the lead frame 4 comprises a central connection 32.
  • the valve plates 2 and 3 are attached to the central housing body 1 by means of screw connections 34.
  • sealing devices are provided between the valve plates 2, 3 and the central housing body 1, of which a sealing device 60 is shown in section in Figure 6.
  • the sealing device 60 preferably comprises a sealing plate which is combined with a suitable seal.
  • the refrigerant circuit comprises valve devices 35 with holding magnets 36, which are mounted on the valve plate 3 and in the area of the valve seats 18, 19 on the central housing body 1, as can be seen in Figure 3.
  • bearings 37, 38, 39 are installed in the central housing body 1.
  • the bearings 37 and 38 serve to support two gear shafts.
  • the bearing 39 serves to support an intermediate shaft.
  • valve devices 35 and the holding magnets 36 are all contacted in one assembly direction, in Figure 5 from above.
  • connection elements 51 to 54 are mounted in the same assembly direction, i.e. from above in Figure 5.
  • a switching magnet 45 with a contact 47 is contacted in the same assembly direction, in Figure 5 from above. This alignment simplifies assembly, in particular connection, considerably.
  • fluid channels in the valve plate 3 and in the central housing body 1 are represented by means of holes 61 to 63.
  • the holes 62 and 63 are also referred to as longitudinal holes.
  • the hole 61 is referred to as a transverse hole.
  • transverse holes in the multifunctional housing 10 are significantly shorter than longitudinal holes.
  • valve device 35 designed as a switching valve, is combined with a check valve 68 in the multifunctional housing 10.
  • the valve device 35 is arranged in the valve plate 3.
  • the check valve 68 is arranged in the central housing body 1.
  • the mounting surface 11 for the valve plate 2 on the central housing body 1 is shown in a top view alone. In the enlarged view, it can be seen that the mounting surface 11 has a total of nine holes 72 on the outside for a screw connection.
  • the holes 72 for the screw connection are arranged outside a sealing groove 73.
  • several holes 69, an optional blind line 70 and a leakage return 71 in a gear chamber are provided.
  • an optional seat 74 for a filter device is provided within the sealing groove 73.
  • the filter device is a line-integrated filter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Details Of Gearings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un boîtier multifonction (10) conçu pour recevoir des composants d'une chaîne cinématique d'essieu électrique pour un véhicule automobile. Afin de simplifier la mise à disposition de différents fluides dans la chaîne cinématique de l'essieu électrique pour le véhicule automobile, le boîtier multifonction (10) comprend un corps de boîtier (1 ) central dans lequel sont intégrés des canaux de fluide (65, 66) pour différents fluides.
PCT/DE2024/100523 2023-06-15 2024-06-14 Boîtier multifonction et chaîne cinématique d'essieu électrique Pending WO2024255965A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480030493.5A CN121079216A (zh) 2023-06-15 2024-06-14 多功能壳体和电动最终传动系

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023115577.6 2023-06-15
DE102023115577.6A DE102023115577B4 (de) 2023-06-15 2023-06-15 Multifunktionsgehäuse und elektrischer Achsantriebsstrang

Publications (2)

Publication Number Publication Date
WO2024255965A2 true WO2024255965A2 (fr) 2024-12-19
WO2024255965A3 WO2024255965A3 (fr) 2025-02-06

Family

ID=91758767

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2024/100523 Pending WO2024255965A2 (fr) 2023-06-15 2024-06-14 Boîtier multifonction et chaîne cinématique d'essieu électrique

Country Status (3)

Country Link
CN (1) CN121079216A (fr)
DE (1) DE102023115577B4 (fr)
WO (1) WO2024255965A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024122757B3 (de) 2024-08-09 2026-02-05 Audi Aktiengesellschaft Vordere Rahmenstruktur für ein Kraftfahrzeug mit Domstrebe und darin aufgenommenem innerem Wärmetauscher, Kraftfahrzeug mit einer solchen Rahmenstruktur und Kälteanlage mit einem solchen inneren Wärmetauscher

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018124220A1 (de) 2018-04-10 2019-10-10 Schaeffler Technologies AG & Co. KG Elektrischer Pumpenaktor und Kupplung, sowie Verfahren zur Montage eines Pumpenaktors
DE102021129917A1 (de) 2020-11-18 2022-05-19 Ford Global Technologies, Llc Kühlmantel für integrierten abgaskrümmer

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE102017002972A1 (de) * 2017-03-28 2017-10-12 Daimler Ag Lagerungsanordnung eines elektrischen Antriebsstrangs an einen Kraftwagenrohbau
DE102018220496A1 (de) * 2018-11-28 2020-05-28 Robert Bosch Gmbh Gemeinsames Gehäuse für E-Maschine und Getriebe
CN114502396B (zh) * 2019-09-09 2024-03-12 博泽沃尔兹堡汽车零部件欧洲两合公司 用于对机动车调温的紧凑型模块
DE102020209606A1 (de) * 2020-07-30 2022-02-03 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrische Antriebsvorrichtung
DE102020211234A1 (de) * 2020-09-08 2022-03-10 Robert Bosch Gesellschaft mit beschränkter Haftung Getriebe und eine Antriebsanordnung mit einem entsprechenden Getriebe
DE102020212685A1 (de) * 2020-10-07 2022-04-07 Volkswagen Aktiengesellschaft Vorrichtung zur Ölversorgung einer elektrischen Maschine und elektrische Maschine umfassend eine Vorrichtung zur Ölversorgung
JP2023067110A (ja) * 2021-10-29 2023-05-16 ニデック株式会社 駆動装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018124220A1 (de) 2018-04-10 2019-10-10 Schaeffler Technologies AG & Co. KG Elektrischer Pumpenaktor und Kupplung, sowie Verfahren zur Montage eines Pumpenaktors
DE102021129917A1 (de) 2020-11-18 2022-05-19 Ford Global Technologies, Llc Kühlmantel für integrierten abgaskrümmer

Also Published As

Publication number Publication date
CN121079216A (zh) 2025-12-05
DE102023115577A1 (de) 2024-12-19
WO2024255965A3 (fr) 2025-02-06
DE102023115577B4 (de) 2025-02-06

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