An electric machine
EP4747960A2Pending Publication Date: 2026-05-27HISPEED LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- HISPEED LTD
- Filing Date
- 2024-07-19
- Publication Date
- 2026-05-27
AI Technical Summary
Technical Problem
Existing electric machines face challenges in maintaining the integrity of the rotor-stator air gap and preventing cooling fluid from contacting the rotor, which can lead to wear and fatigue.
Method used
The electric machine incorporates a tube arrangement that segregates the stator from the rotor, allowing a cooling fluid to be directed to the stator without contacting the rotor. This is achieved through tubular sections with specific end configurations and seals to maintain the air gap and prevent fluid ingress.
Benefits of technology
The solution effectively maintains the rotor in a dry condition, preventing wear and fatigue while efficiently cooling the stator, thereby enhancing the operational reliability and longevity of the electric machine.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure EP2024070633_23012025_PF_FP_ABST
Abstract
An electric machine (10) comprising a stator (20) having a cylindrical inner channel (30) with a central stator axis (32), and a rotor (50) coaxially located within the cylindrical inner channel (30) of the stator (20), the rotor (50) and stator (20) being located, at least in part, within a motor housing (70), wherein the electric machine (10) comprises: a first tubular section (80) having a first end (82) of circular cross section and a second end (84) of circular cross section, the first end (82) of the first tubular section (80) located at a first end (72) of the motor housing (70) and the second end (84) of the first tubular section (80) located at a first end (22) of the stator (20); and a second tubular section (180) having a first end (182) of circular cross section and a second end (184) of circular cross section, the first end (182) of the second tubular section (180) located at a second end (172) of the motor housing (70) and the second end (184) of the second tubular section (180) located at a second end (122) of the stator (20).
Need to check novelty before this filing date? Find Prior Art