Rotation sensor of a swash-plate type compressor

Details Rotation sensor of a swash-plate type compressor Rotation sensor of a swash-plate type compressor

1980-10-08

1982-10-26

Croyle, Carlton R.

Pumps

Condition responsive control of drive transmission or pump...

Disconnectable drive element

F04B 4900

Patent

active

043559590

ABSTRACT:
A rotation sensor for sensing a swash-plate type compressor being in rotational state. An electromagnetic sensor including a permanent magnet and a coil disposed in the neighborhood thereof is fixed on a housing of the compressor such that it may be opposed to a part of a rotational locus described by a specific portion of the external periphery of the swash-plate. The electromagnetic sensor generates a signal pulse everytime the specific portion passes nearby. When the swash-plate is made of a non-magnetic material some magnetic body is fixed on the external periphery of the swash-plate for constituting a portion-to-be-sensed. This magnetic body may be a ring or lump of ferrous material, a temperature sensitive ferrite, a permanent magnet, etc.

REFERENCES:
patent: 4017217 (1977-04-01), Lamers

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