Gas separation: processes – With control responsive to sensed condition – Temperature sensed
Patent
1994-12-13
1996-09-03
Spitzer, Robert
Gas separation: processes
With control responsive to sensed condition
Temperature sensed
95 20, 95278, 95283, 55267, 55283, 55523, 55DIG10, 55DIG30, B01D 2962, B01D 3518
Patent
active
055519717
ABSTRACT:
A system and related method for cleaning a particulate filter medium. The filter medium is cleaned by the input of energy to burn off particulate matter collected thereon. The system can comprise a thermocouple for monitoring the temperature of the filter medium at a plurality of locations. There is an electronic control unit for determining the point having a maximum individual temperature and creating a control signal commensurate with the maximum temperature. The control unit can determine if the control signal exceeds a predetermined set point level and if so reduces the energy input. The control unit also determines if the control signal falls within a predetermined range, also referred to as a band width of acceptable values less than the set point level. If the signal falls within the band width, the control unit controls the energy input and varies it as appropriate in order to maintain the control signal within the band width.
REFERENCES:
patent: 3904551 (1975-09-01), Lundsager et al.
patent: 4276066 (1981-06-01), Bly et al.
patent: 4319896 (1982-03-01), Sweeney
patent: 4329162 (1982-05-01), Pitcher, Jr.
patent: 4331454 (1982-05-01), Sweeney
patent: 4340403 (1982-07-01), Higuchi et al.
patent: 4345431 (1982-08-01), Suzuki et al.
patent: 4364760 (1982-12-01), Higuchi et al.
patent: 4403008 (1983-09-01), Factor
patent: 4404795 (1983-09-01), Oishi et al.
patent: 4411856 (1983-10-01), Montierth
patent: 4427728 (1984-01-01), Belmonte et al.
patent: 4436535 (1984-03-01), Erdmannsdorfer et al.
patent: 4455180 (1984-06-01), Hillman et al.
patent: 4510265 (1985-04-01), Hartwig
patent: 4516990 (1985-05-01), Erdmannsdorfer et al.
patent: 4519820 (1985-05-01), Oyobe et al.
patent: 4549399 (1985-10-01), Usui et al.
patent: 4557962 (1985-12-01), Belmonte et al.
patent: 4559193 (1985-12-01), Ogawa et al.
patent: 4563414 (1986-01-01), Ogawa et al.
patent: 4576774 (1986-03-01), Hazard et al.
patent: 4630438 (1986-12-01), Shinzawa
patent: 4651524 (1987-03-01), Brighton
patent: 4752516 (1988-06-01), Montierth
patent: 4759892 (1988-07-01), Bonzo
patent: 4851015 (1989-07-01), Wagner et al.
patent: 4923484 (1990-05-01), Saito
patent: 5042249 (1991-08-01), Erdmannsdoerfer
patent: 5044157 (1991-09-01), Henkel
patent: 5067318 (1991-11-01), Arai
patent: 5067973 (1991-11-01), Pattas
patent: 5100632 (1992-03-01), Dettling et al.
patent: 5114581 (1992-05-01), Goldsmith et al.
patent: 5221484 (1993-06-01), Goldsmith et al.
patent: 5224973 (1993-07-01), Hoppenstedt et al.
patent: 5248481 (1993-09-01), Bloom et al.
patent: 5248482 (1993-09-01), Bloom
patent: 5279630 (1994-01-01), Brinkmann
patent: 5347809 (1994-09-01), Moeckel et al.
patent: 5409669 (1995-04-01), Smith et al.
"Optimized Regeneration Consitions of Ceramic Honeycomb Diesel Particulate Filters", SAE 830078, Feb. 1983, Higuchi, Mochida & Kojima (NGK Insulators Ltd.).
"Effect of Cell Structure on Regeneration Failure to Ceramic Honeycomb Diesel Particulate Filter", SAE870010, Feb. 1987, Mizuno, Kitagawa & Hijikata (NGK Insulators Ltd.).
"Effects of DPF Volume on Thermal Shock Failures During Regeneration", SAE Paper by Kitagawa, Hijikata, Makino (NGK Insulators Ltd).
"3M Diesel Filters For Particulate Emission Control, Designer's Guide", 3M 1994 Jan. 78-6970-5469-6.
"DPX.RTM. Diesel Soot Filter For Mining and Construction" Engelhard Corp., Iselin, New Jersey, Engelhard Limited, Coleford, England (Dist. by: Phenix Projects Ltd, Cinderford, glos., England).
Chadderton John
Child David
Deighton John
Engelhard Corporation
Negin Richard A.
Spitzer Robert
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