Patent · US Active

Modularized elongation ring for air outlet in self-ventilated traction motor

US9337699B2 · kind B2 · utility

0Cited by

10References

7Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Peter Isberg · Lund, SE
Per-Olof Lindberg · Hagfors, SE

Key dates

Filing date	Mar 18, 2011
Grant date	May 10, 2016
Priority date	—
Expiry date	Mar 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/207
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An elongation ring adapted for use in a self-ventilated traction motor and for fixed placement between the non-driving end of the motor housing and a motor end shield. The ring has radial air outlet openings placed along its circumference and is adapted to enclose a fan wheel fixed on a motor driving shaft. A traction motor having such an elongation ring is also contemplated. The elongation ring provides a possibility to easily adapt a motor housing to different motor types such as a self-ventilated motor with the ring, or one with forced ventilation without the ring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.