Compressor with rotation detecting mechanism

Details Compressor with rotation detecting mechanism Compressor with rotation detecting mechanism

1994-04-13

1996-07-30

Gluck, Richard E.

Pumps

Condition responsive control of drive transmission or pump...

Disconnectable drive element

417 63, F04B 4706, F04B 2708

Patent

active

055405606

ABSTRACT:
A compressor including a rotation detecting device for detecting the rotation of the compressor to stop the compressor in an emergency. The rotation detecting device comprises a fastening bolt fastening the casing sections together, a rotatable member supported by a drive shaft, and a magnetic sensor arranged outside the casing around the head of the fastening bolt. A magnetic flux is guided from a magnetic clutch to the rotatable member or provided by permanent magnets on the rotatable member. The rotatable member has a notch or a projection for producing periodically changing a magnetic flux which passes through the fastening bolt and is detected by the magnetic sensor.

REFERENCES:
patent: 4355959 (1982-10-01), Kono et al.
patent: 4393966 (1983-07-01), Kono et al.
patent: 4704072 (1987-11-01), Nakajima et al.
patent: 4737079 (1988-04-01), Kurosawa et al.
patent: 4781538 (1988-11-01), Daikohara
patent: 5100301 (1992-03-01), Hidaka et al.
patent: 5380161 (1995-01-01), Takenaka et al.
patent: 5391058 (1995-02-01), Goto

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