Smoke measuring apparatus

Details Smoke measuring apparatus Smoke measuring apparatus

1989-10-24

1991-01-29

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

049877720

ABSTRACT:
An apparatus for providing an indication of the level of smoke in an engine exhaust includes a radiation sensor which is mounted in a combustion chamber of the engine. The signal produced by the sensor during combustion of fuel is processed to produce a signal representing the period of combustion of fuel in the cylinder and this signal is applied to a map which contains recorded data showing the relationship between the combustion period and the level of smoke. From the map the level of smoke can be obtained.

REFERENCES:
patent: 4519353 (1985-05-01), Ito et al.
patent: 4760830 (1988-08-01), Bullis et al.

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