Engine position transducer means

Details Engine position transducer means Engine position transducer means

1984-08-09

1985-12-17

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

045585911

ABSTRACT:
An engine position transducer device includes first and second discs adapted to be coupled to a rotary part of an engine. The first disc has a plurality of vanes equal in number to the number of engine cylinders. The leading edges of the vanes are equi-angularly spaced about the axis of the disc but the trailing edges are arranged so that each vane has a different length. The disc has a larger number of equally spaced marks 14. Transducers are associated with the discs and a signal processing device is provided which counts the number of marks on the second disc which pass the associated transducer while a vane on the first disc is passing the associated disc. The processing device contains stored information and can compare the count values with the stored information to provide a recognition signal. In addition the processing device is able to determine whether or not the engine is rotating in the correct direction.

REFERENCES:
patent: 4158305 (1979-06-01), Shipley
patent: 4233592 (1980-11-01), Leichle

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