Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Patent
1993-11-26
1995-10-17
Chiesa, Richard L.
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
55283, 55288, 55314, 553853, 55DIG30, 60274, 95 19, 95 21, 95279, 95283, 96144, 123198E, B01D 2966
Patent
active
054586739
ABSTRACT:
For regenerating an exhaust gas particulate collecting filter, there is provided an exhaust gas particulate purifying process in which damage to the filter caused by a thermal action can be prevented and further electric power can be saved when an electric current supply to an electric heater attached to the filter is controlled. In the filter container (4), an electric heater (21) is provided on an end surface of the filter on an upstream side with respect to a regenerating gas flow, or provided at a position close to the end surface. Also, a temperature sensor (22) for measuring a temperature of the filter is provided inside the filter or at a position close to an end surface of the filter opposite to the aforementioned end surface. Further, there is provided a first controller (13) for determining an appropriate current amount to be supplied to the electric heater and also for determined an electric power reducing pattern used in the case of stoppage of power supply, in accordance With the filter preheating temperature immediately before the start of regeneration detected by the temperature sensor (22). A second controller ( 17) controls a current amount supplied to the electric heater (21) in accordance with a command given by the first controller (13).
REFERENCES:
patent: 4276066 (1981-06-01), Bly et al.
patent: 4427418 (1984-01-01), Kogiso et al.
patent: 4544388 (1985-10-01), Rao et al.
patent: 4851015 (1989-07-01), Wagner et al.
patent: 4897096 (1990-01-01), Pischinger et al.
patent: 4923484 (1990-05-01), Saito
patent: 5090200 (1992-02-01), Arai
patent: 5105619 (1992-04-01), Arai
patent: 5212948 (1993-05-01), Gillingham et al.
patent: 5305602 (1994-04-01), Kojima et al.
Arikawa Fumiaki
Inagaki Mitsuo
Kojima Akikazu
Miyoshi Shinji
Takeuchi Takayuki
Chiesa Richard L.
Nippon Soken Inc.
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