Exhaust gas purifier

Details Exhaust gas purifier Exhaust gas purifier

1997-10-16

1999-08-17

Smith, Duane S.

Gas separation

With nonliquid cleaning means for separating media

With heating or cooling means

55525, 55DIG30, B01D 4604

Patent

active

059388021

ABSTRACT:
An exhaust gas purifier which can regenerate its trapper for trapping particulate matter (PM) in exhaust over the entire area of its filter portion, even if a large amount of PM is trapped. PM trapped on the trapper is burned by heating the trapper with an electric heater inserted in the trapper on its downstream side. With this arrangement, PM is less likely to accumulate between the electric heater and the trapper. Also, PM is less likely to adhere to the surface of heater supporting insulators. Thus, it is possible to prevent short-circuiting between the heater and the trapper through PM.

REFERENCES:
patent: 4276066 (1981-06-01), Bly et al.
patent: 4376637 (1983-03-01), Yang
patent: 4503672 (1985-03-01), Stark et al.
patent: 4897096 (1990-01-01), Pischinger et al.
patent: 4925463 (1990-05-01), Kuhnert
patent: 5207807 (1993-05-01), Manfre et al.
patent: 5457945 (1995-10-01), Adilleta

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