Engine testing microwave transmission device

Details Engine testing microwave transmission device Engine testing microwave transmission device

1981-08-13

1983-09-13

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

324 585B, 333248, G01M 1500

Patent

active

044035047

ABSTRACT:
A microwave transmission device for transmitting microwave signals into and out of the combustion chamber of a spark ignited internal combustion engine. The device comprises a circular metallic waveguide that is adapted to encompass a resistor-type spark plug of the engine. An antenna element is disposed in the waveguide which excites it in the TE.sub.11 mode whereby the internal resistor does not substantially attenuate microwave transmission. The waveguide has means for securely attaching it to the exterior of the spark plug such that the waveguide and spark plug have a common longitudinal axis.

REFERENCES:
patent: 3327211 (1967-06-01), Taub
patent: 3589177 (1971-06-01), Merlo
patent: 3703825 (1972-11-01), Merlo
patent: 3934566 (1976-01-01), Ward
patent: 4138980 (1979-02-01), Ward
Merlo, A. L. Combustion Chamber Investigations . . . Resonances from IEEE Transactions on Industrial . . . Instrumentation, Apr. 1970, pp. 60-66.

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