Brakes – Operators – Electric
Patent
1991-07-19
1993-06-01
Oberleitner, Robert J.
Brakes
Operators
Electric
188158, 310105, B60L 700
Patent
active
052151697
ABSTRACT:
A vehicle braking system including a brake disk structure defining an annular surface and having an axis; an annular magnet support assembly disposed adjacent to the annular surface in the direction of the axis; a plurality of circumferentially spaced apart pairs of circumferentially spaced apart magnets mounted on the magnet support and circumferentially spaced apart thereon, each pair arranged with like polarities facing the annular surface and the polarities of the pairs of permanent magnets facing the annular surface alternating circumferentially; an annular pole piece support assembly; and a plurality of ferromagnetic pole pieces mounted on the pole piece support assembly and circumferentially spaced apart in positions between the annular surface and the permanent magnets, each pole piece disposed adjacent to a pair of the permanent magnets and having a circumferential length substantially greater than the circumferential length of either of the adjacent pair of permanent magnets. Also included in the system is an adjustment mechanism for producing relative angular movement between the magnet support and the pole piece support assembly so as to change the circumferential alignment between each of the pole pieces and the pair of permanent magnets adjacent thereto.
REFERENCES:
patent: 3488535 (1970-01-01), Baermann
patent: 4482034 (1984-11-01), Boermann
Isuzu Motors Ltd.
Jarcho Harold G.
Oberleitner Robert J.
Schwartz Chris
Toupal John E.
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