Electric axle with direct rotor and head spray cooling
US12278539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 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. An 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 first spray ring arranged adjacent to the coolant manifold and a second spray ring arranged distally to the coolant manifold, wherein the first spray ring receives coolant from the coolant manifold via an interior passage and the second spray ring receives coolant from the coolant manifold via an outer passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.