Magnetic final control element for a regulator apparatus

Details Magnetic final control element for a regulator apparatus Magnetic final control element for a regulator apparatus

1979-03-08

1980-12-30

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

310 14, 310 13, 310 27, H02K 4100

Patent

active

042426065

ABSTRACT:
A preferred form of embodiment of the final control element comprises a direct-current electromagnet, with whose armature the regulator rod is connected; an inductive displacement transducer generating an electric output signal proportional to the stroke and having a pickup spool and a transducer rod connected to the regulator rod and influencing the inductivity of the pick-up spool in a stroke-proportional manner; and a restoring spring embodied as a helical compression spring, whose stroke-proportional restoring force acts counter to the attracting force of the magnet, which is proportional to the exciter current.

REFERENCES:
patent: 3965377 (1976-06-01), Carbonneau
patent: 4040445 (1977-08-01), McCormick

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