Speed detector of scroll-type fluid machine

Details Speed detector of scroll-type fluid machine Speed detector of scroll-type fluid machine

1994-04-29

1995-03-07

Bertsch, Richard A.

Rotary expansible chamber devices

With signal, indicator or transparent inspection means

418 553, 464102, 73253, F01C 2100

Patent

active

053952200

ABSTRACT:
A speed detector of a scroll-type fluid machine in which a fixed scroll and an orbiting scroll, each of which includes a spiral wrap disposed on the inner surface of an end plate thereof, are engaged with each other and housed in a closed housing, and the orbiting scroll revolves while its rotation is checked by means of an Oldham's ring having the orbiting scroll disposed on the outer surface thereof, wherein the Oldham's ring is formed of a magnetic material, and an electromagnetic induction type revolution signal detecting means is installed in an opposed relationship to the Oldham's ring.

REFERENCES:
patent: 5150612 (1992-09-01), Lew
patent: 5269668 (1993-12-01), Lew et al.

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