Peak combustion pressure timing detector for IC engine using int

Details Peak combustion pressure timing detector for IC engine using int Peak combustion pressure timing detector for IC engine using int

1986-04-21

1987-06-16

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

73115, G01M 1500

Patent

active

046728430

ABSTRACT:
A peak combustion pressure timing (LPP) sensor is disclosed for a spark ignited internal combustion engine comprising a probe fixed with respect to the stationary portion of the engine and disposed adjacent a detectable member moving longitudinally with the valve stem of a combustion chamber intake poppet valve as the valve closing portion of the poppet valve is distorted by combustion pressure. The probe may be a proximity probe which senses the longitudinal movement of the member and thus the valve stem and generates an electric output signal thereof. Further apparatus senses the signal peak value, which signifies peak combustion pressure, and references the peak value with the crankshaft rotational position of the engine so as to indicate the timing thereof.

REFERENCES:
patent: 4491010 (1985-01-01), Brandt et al.

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