Bearing assembly with rotation sensing device

Details Bearing assembly with rotation sensing device Bearing assembly with rotation sensing device

2007-01-16

2007-01-16

Patidar, Jay M. (Department: 2862)

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

C324S207250, C384S448000

Reexamination Certificate

active

10883307

ABSTRACT:
A bearing unit for a vehicle wheel hub is associated with a rotation sensing device and an electromagnetic inductive coupling. The rotation sensing device comprises an impulse ring (18) secured for rotation with the rotatable race (13) of the bearing unit by means of a rotatable annular carrier (19), and a magnetic/electric transducer (20) mounted to the stationary race (12) of the bearing unit by means of a stationary annular carrier (21) and operatively facing the impulse ring (18). The electromagnetic inductive coupling comprises a stationary coil (24) electrically connectable to a power supply (32) and carried by the stationary annular carrier (21), and a rotatable coil (25) electrically connectable (26) to an electric or electronic device mounted on the wheel. The rotatable coil (25) is carried by the rotatable annular carrier (19) and is electromagnetically linked to the stationary coil (24).

REFERENCES:
patent: 3535618 (1970-10-01), Perrins
patent: 3780313 (1973-12-01), Wiegand
patent: 3852717 (1974-12-01), Hosaka et al.
patent: 4045738 (1977-08-01), Buzzell
patent: 0 745 857 (1996-12-01), None
patent: 00/23779 (2000-04-01), None

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