Method and apparatus for locating top dead center position of a

Details Method and apparatus for locating top dead center position of a Method and apparatus for locating top dead center position of a

1986-04-09

1987-05-26

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

046675108

ABSTRACT:
A method and apparatus for determining the location of the top dead center position of a piston of an internal combustion engine. A light sensor is provided to sense the infrared radiation generated by the heating of air in the combustion chamber of the engine during the compression stroke. The light sensor is connected to an electronic circuit that develops a curve that represents light intensity. This curve has a peak and the crankshaft angle at which the peak occurs is detected and utilized in conjunction with an engine speed related correction factor to determine the crankshaft angle corresponding to the top dead center position of the piston.

REFERENCES:
patent: 2841979 (1958-07-01), Harbert
patent: 3678741 (1972-07-01), Burley
patent: 3978720 (1976-09-01), Ford
patent: 4147054 (1979-04-01), Hohenberg et al.
patent: 4384480 (1983-05-01), Krage et al.
patent: 4492114 (1985-01-01), Yamanaka et al.

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