Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1974-06-24
1976-03-02
Queisser, Richard C.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73359, 123169R, 313 10, 315129, 340190, 340207R, G01K 702, F02P 1700, G08C 906
Patent
active
039409872
ABSTRACT:
Apparatus for measuring the temperature of the insulator tip of a spark plug being operated in an internal combustion engine. A thermocouple is embedded in the surface of the insulator tip adjacent the spark gap for sensing temperature. The output of the thermocouple is connected through an electro-optical ignition voltage isolation circuit to circuitry which maintains a substantially constant temperature signal during the time interval that ignition voltage is applied to fire the spark plug. The temperature signal may drive a temperature indicating display or devices such as chart or tape recorders to produce records which may be used in analyzing either operation of the spark plug or combustion.
REFERENCES:
patent: 903090 (1908-11-01), Hopkins
patent: 3461384 (1969-12-01), Bayati
craver, R. J. et al., Spark Plug Design Factors and Their Effect on Engine Performance, SAE Paper 700081 for Meeting Jan. 1970, pp. 229, 231-232.
Moulton, C. H., Light Pulse System . . . . In Electronics, 38(10), pp. 71-75, May 17, 1965.
Green Sam J.
Raeske Frank J.
Champion Spark Plug Company
Queisser Richard C.
Shoon Frederick
Todd, Jr. Oliver E.
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