Title:
EDDY CURRENT BRAKE
Document Type and Number:
WIPO Patent Application WO/1988/008635
Kind Code:
A1
Abstract:
A brake comprising an electromagnet and a rotor composed of a ferromagnetic material, wherein a brake force is generated by eddy currents created in the rotor when it intersects the magnetic fluxes. A thin metal layer (30) consisting of three layers of nickel, copper and nickel is provided on the inner peripheral surface (15) of a cylindrical peripheral wall (11) of the rotor (10), and the outside of a coil (45) of the electromagnet (40) is surrounded by a magnetic pole casing (46) composed of a ferromagnetic material to obtain a large brake torque. The device is suited for use as an auxiliary brake for vehicles.
Inventors:
MATSUI NORIO (JP)
SANJO ISAO (JP)
CHIBA SHUUICHI (JP)
SANJO ISAO (JP)
CHIBA SHUUICHI (JP)
Application Number:
PCT/JP1988/000346
Publication Date:
November 03, 1988
Filing Date:
April 06, 1988
Export Citation:
Assignee:
TOKYO BUHIN KOGYO CO LTD (JP)
International Classes:
H02K49/02; H02K49/04; (IPC1-7): H02K49/02
Foreign References:
| JPH04827148A | ||||
| JPS56133963A | 1981-10-20 | |||
| JPS56148170A | 1981-11-17 |
Other References:
See also references of EP 0312601A4
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