Adjustable engine crankshaft position sensor with preadvance tim

Details Adjustable engine crankshaft position sensor with preadvance tim Adjustable engine crankshaft position sensor with preadvance tim

1978-11-29

1980-11-25

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

042351014

ABSTRACT:
A crankshaft position sensing system for sensing the motion of an engine crankshaft and a method of generating an output signal having an adjustable special phasing relationship with respect to the motion of a plurality of pistons disposed within the block of an automotive engine. The crankshaft position sensing system includes a pickoff disposed within a mounting bracket that is mounted to the underside of an engine block such that the face of the pickoff is maintained in spaced relationship to a sense wheel. The sense wheel contains a plurality of sense features and rotates with the engine crankshaft to coact with the pickoff to generate an output signal indicative of the motion of the crankshaft.
In addition, the phasing between the output signal and the engine motion is fixed by the pickoff mounting geometries and fixed by the orientation of the sense wheel relative to an index feature on the flange of the crankshaft.
Adjustment of this phasing relationship is accomplished by interposing calibrated spacers or shims between the bracket and an engine mounting surface.

REFERENCES:
patent: 2437283 (1948-03-01), Viers
patent: 2520071 (1950-08-01), Tennefos
patent: 3490567 (1970-01-01), Clark et al.
patent: 3503256 (1970-03-01), List et al.
patent: 3548300 (1970-12-01), Nolting
patent: 3562741 (1971-02-01), McEroy et al.
patent: 3781655 (1973-12-01), Lane
patent: 3944025 (1976-03-01), Owen
patent: 3982112 (1976-09-01), Schlereth
patent: 3999383 (1976-12-01), Hanaoka

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