Title:
ELECTROMAGNETIC RETARDER FOR A VEHICLE
Document Type and Number:
WIPO Patent Application WO2003098785
Kind Code:
A3
Abstract:
The invention relates to an electromagnetic retarder for a vehicle. Eddy currents can form when a magnetic field (17) passes through a rotor (10, 11) of an electromagnetic retarder of a vehicle in a perpendicular manner to the direction of rotation (18) of said rotor. The aforementioned eddy currents are even stronger since the magnetic field is perpendicular to the rotation direction of the rotor. However, current electromagnetic retarders are made such that said eddy currents travel through a small area of the rotor. In order to optimise the power generated by such currents, the inventive retarder comprises an increased eddy current area (19) in the rotor, whereby at least one magnetic field-generating coil (13, 14) is disposed such that the magnetic field formed by said coil forms a radial configuration in relation to an axis of the rotor (16).
Inventors:
LIU ZENG GANG (FR)
Application Number:
PCT/FR2003/001536
Publication Date:
March 11, 2004
Filing Date:
May 21, 2003
Export Citation:
Assignee:
TELMA (FR)
LIU ZENG GANG (FR)
LIU ZENG GANG (FR)
International Classes:
B60L7/28; H02K49/04; (IPC1-7): H02K49/04; B60L7/28
Foreign References:
| GB2171852A | 1986-09-03 | |||
| EP0480345A1 | 1992-04-15 | |||
| FR2803134A1 | 2001-06-29 | |||
| DE3530746A1 | 1987-03-05 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 13, no. 317 (E - 789) 19 July 1989 (1989-07-19)
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