Electric machine arrangement
US-2023307991-A1 · Sep 28, 2023 · US
Drive device for a motor vehicle, in particular for a car
US2025249740A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025249740-A1 |
| Application number | US-202318852672-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 24, 2023 |
| Priority date | Apr 1, 2022 |
| Publication date | Aug 7, 2025 |
| Grant date | — |
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Abstract
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A drive device for a motor vehicle has an electric engine formed as an axial flow engine, which has a stator and two rotors that can be rotated in relation to the stator. The stator is arranged between the rotors in the axial direction of the axial flow engine. A differential transmission is arranged at least partially radially inside the stator, the differential transmission having a first driven gear non-rotationally connected to a first driven shaft and a second driven gear non-rotationally connected to a second driven shaft. The rotors each have a rotor support, which are connected to one another in a form-fit manner and form a differential housing when seen at least in the axial direction of the electric engine.
First claim
Opening claim text (preview).
1 - 5 . (canceled) 6 . A drive device for a motor vehicle, the drive device comprising: an electric engine, which is an axial flow engine comprising a stator and two rotors rotatable in relation to the stator, wherein the stator is arranged between the two rotors in the axial direction of the axial flow engine; and a differential transmission arranged at least partially radially inside the stator and comprising a first driven gear non-rotationally connected to a first driven shaft and a second driven gear non-rotationally connected to a second driven shaft, wherein the two rotors each have a rotor support, wherein the rotor supports of the two rotors are connected to one another in a form-fit manner and form a differential housing when seen at least in an axial direction of the electric engine. 7 . The drive device of claim 6 , wherein the differential transmission is a planetary differential, the first driven gear is a first sun gear non-rotationally connected to the first driven shaft, the second driven gear is a second sun gear non-rotationally connected to the second driven shaft, the planetary differential has at least two planetary bolts respectively held on the two rotor supports, and via the planetary bolts the two rotor supports are connected to one another in a form-fit manner, the planetary differential has at least one first planetary gear held on a first of the at least two planetary bolts and meshing with the first sun gear, and the planetary differential has at least one second planetary gear rotatably held on a second one of the at least two planetary bolts and meshing with the second sun gear, the second planetary gear meshes with the first planetary gear. 8 . The drive device of claim 6 , wherein the differential transmission is a bevel gear differential, the two rotor supports are connected to one another in a form-fit manner via at least one web, the first driven gear is a first bevel gear non-rotationally connected to the first driven shaft, the second driven gear is a second bevel gear non-rotationally connected to the second driven shaft, and the bevel gear differential has at least one compensation gear held on the at least one web, wherein the compensation gear is a third bevel gear of the bevel gear differential meshing with the first driven gear and with the second driven gear. 9 . The drive device of claim 6 , wherein at least one of the two rotors is rotatably mounted on a housing of the drive device via at least one bearing. 10 . The drive device of claim 6 , wherein at least one of the two rotors is rotatably mounted on one of the first and second driven shafts via at least one bearing.
Assignees
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Classifications
with magnets axially facing the armatures, e.g. hub-type cycle dynamos · CPC title
with gears · CPC title
characterised by two sun gears · CPC title
having intermeshing planet gears · CPC title
comprising bevel gears · CPC title
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- What does patent US2025249740A1 cover?
- A drive device for a motor vehicle has an electric engine formed as an axial flow engine, which has a stator and two rotors that can be rotated in relation to the stator. The stator is arranged between the rotors in the axial direction of the axial flow engine. A differential transmission is arranged at least partially radially inside the stator, the differential transmission having a first dri…
- Who is the assignee on this patent?
- Mercedes Benz Group Ag
- What technology area does this patent fall under?
- Primary CPC classification B60K1/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Aug 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).