Active filter temperature control

Details Active filter temperature control Active filter temperature control

2006-11-28

2006-11-28

Lawrence, Frank M. (Department: 1724)

Gas separation: processes

With control responsive to sensed condition

Temperature sensed

C095S023000, C096S413000, C096S420000, C096S422000, C073S901000

Reexamination Certificate

active

07141090

ABSTRACT:
An emission sampling system includes an exhaust gas probe for sampling exhaust gas. A dilution gas source provides a dilution gas, and a mixing device is in fluid communication with the exhaust gas probe and the dilution gas source to mix the sampled exhaust gas and the dilution gas to form a diluted exhaust gas. A particulate filter is in fluid communication with the mixing device downstream therefrom. A dilution temperature conditioning device is arranged between the dilution gas source and the mixing device for obtaining a desired dilution gas temperature. A temperature sensor is arranged in the sampling system for producing a temperature signal corresponding to a temperature of fluid flowing through the sampling system. A controller is connected to the temperature sensor for processing the temperature signal and determining a filter temperature from the temperature signal. The controller commands the conditioning device in response to the filter temperature.

REFERENCES:
patent: 3841145 (1974-10-01), Boubel
patent: 3986386 (1976-10-01), Beltzer et al.
patent: 5052425 (1991-10-01), Hohenberg et al.
patent: 6399391 (2002-06-01), Tomlin
patent: 2002/0020232 (2002-02-01), Yamagishi et al.
patent: 2003/0110950 (2003-06-01), Sjostrom et al.
patent: 0610523 (1994-08-01), None
patent: 1462791 (2004-11-01), None
patent: 2002055029 (2002-02-01), None
patent: 2004301837 (2004-10-01), None

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