Self-adjusting engine timing pickup probe

Details Self-adjusting engine timing pickup probe Self-adjusting engine timing pickup probe

1979-10-15

1981-04-21

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

324392, G01M 1500

Patent

active

042625270

ABSTRACT:
A self-adjusting engine timing pickup probe adapted to be received in a tubular engine mounting bracket, the probe extending into close proximity with a position indicator on a rotating engine part to provide an air gap. An elongated sensor assembly extends through the tubular member and has relative axial movement therewith for initial manual adjustment of the sensor assembly to provide an effective air gap. Interference means are provided between the tubular member and the sensor assembly, the interference means establishing substantial resistance to relative axial movement between the tubular member and the sensor assembly. The tubular member has a spring means which engages the engine mounting bracket and holds the two together in a yielding manner. The spring means urges the tubular member and associated sensor assembly inwardly toward the rotating engine part. However, during engine operation, the rotating engine part, due to tolerances, wear, vibrations, etc., engages the sensor assembly and tends to move both the sensor assembly and the tubular member outwardly of the mounting bracket. In so doing, the spring means holding the tubular member in the engine mounting bracket yields, while the interference means between the tubular member and the sensor assembly does not yield. Thus, the engagement between the sensor assembly and the rotating engine part does not cause relative axial movement between the tubular member and the sensor assembly.

REFERENCES:
patent: 3832635 (1974-08-01), Cass
patent: 4089316 (1978-05-01), Padgitt

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