Exhaust filter rejuvenation method

Details Exhaust filter rejuvenation method Exhaust filter rejuvenation method

1979-06-21

1982-05-25

Spear, Jr., Frank A.

Gas separation

Means within gas stream for conducting concentrate to collector

55 21, 55163, 55208, 55213, 60274, 422178, 422223, B01J 802, F01N 315

Patent

active

043314546

ABSTRACT:
Method for rejuvenating a smoke filter which is adapted to remove solid particles from an internal combustion engine exhaust gas stream. The filter includes a bed which forms a multi-passage path along which an exhaust stream flows, and in which carbon particles are retained. A heating element incorporated into the filter bed periodically heats the flowing exhaust gas stream as well as the bed. Rejuvenation of the bed by burning off carbon is regulated in response to variations in the gas pressure, and in the bed temperature.

REFERENCES:
patent: 3238121 (1966-03-01), Parkin
patent: 3889464 (1975-01-01), Gardner
patent: 4009121 (1977-02-01), Luckenbach
patent: 4039294 (1977-08-01), Mayer et al.
patent: 4040253 (1977-08-01), Dhugues et al.
patent: 4063899 (1977-12-01), Chevon et al.
patent: 4119706 (1978-10-01), Rogers
patent: 4133654 (1979-01-01), Hill et al.
patent: 4147523 (1979-04-01), Izumo

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