Heat generator for automotive vehicles

Details Heat generator for automotive vehicles Heat generator for automotive vehicles

1997-06-24

1999-03-16

Walberg, Teresa

Liquid heaters and vaporizers

Friction generator

1231425, 237 123R, F22B 306

Patent

active

058816828

ABSTRACT:
A heat generator is disclosed that has its driving state constantly monitored and can be disconnected from a power source after an abnormality of its drive mechanism is detected. A plurality of holes are formed at equal angular intervals along the periphery of a disk-shaped rotor, which is capable of rotating in unison with a drive shaft. A magnetic sensor is mounted in a rear housing in a manner opposed to the holes. The drive shaft is selectively connected to the outer drive source via an electromagnetic clutch. A closed magnetic circuit, which is formed in the heat generator by magnetic flux leakage from the electromagnetic clutch, extends through the rotor and the magnetic sensor. When the rotor is rotating normally, the magnetic flux is periodically disturbed by the holes, and the magnetic sensor outputs a pulse signal indicative of the sensed periodic disturbance of the magnetic flux. On the other hand, when the rotor stops rotating due to an abnormality occurring in the rotor drive system, the disturbance of magnetic flux by the holes disappears, and the pulse signal from the sensor ceases. In this case, the drive shaft is disengaged from the power source.

REFERENCES:
patent: 5573184 (1996-11-01), Martin
patent: 5755379 (1998-05-01), Ito
patent: 5775583 (1998-07-01), Braatz et al.
patent: 5778843 (1998-07-01), Inoue et al.

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