Dual probe coupler

Details Dual probe coupler Dual probe coupler

1980-11-03

1982-07-06

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

73119A, G01M 1500

Patent

active

043376487

ABSTRACT:
A probe assembly for injection of microwave energy into the cylinder cavity of a diesel engine and detection of luminescence indicative of fuel ignition in the cylinder. The probe assembly comprises a probe with microwave and optical transmitters extending axially therethrough adapted to be threaded into a cylinder opening. A coupler is removably mounted on the probe and includes an optical detector mounted in assembly coaxially with the optical transmitter in the probe and a microwave antenna coupled by a waveguide cavity within the coupler to the probe microwave transmitter. The coupler is adapted for connection to suitable external diagnostic circuitry for providing to such circuitry signals indicative of piston position within the cylinder and fuel ignition as a function of the microwave and luminescence signals respectively.

REFERENCES:
patent: 3678741 (1972-07-01), Burley
patent: 3703825 (1972-11-01), Merlo

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