Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1994-03-17
1995-05-30
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60275, 60284, 60286, 60297, 60300, 60303, 422171, 422174, F01N 320
Patent
active
054191238
ABSTRACT:
An emission control device and method are provided for treating exhaust gases to reduce pollutants contained therein. The device includes a treatment chamber through which the exhaust gases pass. First and second metal screens are disposed within the chamber a predetermined distance from each other. A section of chemical substrate is disposed between the screens. Voltage is supplied to adjacent the first screen with, for example, an electrode device. A timing circuit is provided for pulsing the voltage at a predetermined pulse rate. A temperature sensitive device may be interfaced with the treatment chamber and timing circuit so that the pulsed voltage is only supplied to the screen within a predetermined temperature range.
REFERENCES:
patent: 2981057 (1961-04-01), Buttler
patent: 3043096 (1962-07-01), McLoughlin
patent: 3228755 (1966-01-01), Lottinville
patent: 3263412 (1966-08-01), Thompson
patent: 4441971 (1984-04-01), Ishiguro
patent: 5146743 (1992-09-01), Maus
patent: 5199257 (1993-04-01), Colletta
Hart Douglas
Unlimited Technologies, Inc.
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