Electric axle with direct rotor and head spray cooling
US12374954B2 · kind B2 · utility
0Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jan 7, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for an electric axle in a vehicle. The electric axle comprises an electric motor having a stator and a rotor, a coolant manifold mounted to an end plate of the rotor, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a spray ring comprising coolant lines coupled to the coolant manifold, wherein coolant flowing from the coolant manifold to the spray ring flows in a direction angled to an axial direction, wherein the spray ring is positioned circumferentially about axial stator end windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.