Particulate trap for diesel engine

Details Particulate trap for diesel engine Particulate trap for diesel engine

1996-09-23

1998-07-21

Bushey, C. Scott

Gas separation

With nonliquid cleaning means for separating media

With heating or cooling means

55487, 55523, 55DIG10, 55DIG30, 60311, 60320, B01D 2962

Patent

active

057829411

ABSTRACT:
A particulate trap which can be used in a medium- or small-sized diesel engine car includes concentrically arranged cylindrical filters made of a three-dimensionally reticulated metallic porous material and a plate-shaped electric heater for regeneration having an output of 400 W or less, and is provided between the filters and spaced therefrom. The filters have a relatively shortened length. The heating amount of the filters by the heater is 0.60 W/cm.sup.2 or more. The filter has an increased thickness to make up for reduction in the filter surface area due to the shortened filter length. With this arrangement, it is possible to achieve a high regeneration efficiency with a low-output heater while suppressing heat loss.

REFERENCES:
patent: 4686837 (1987-08-01), Wade et al.
patent: 5405423 (1995-04-01), Haerle
patent: 5458664 (1995-10-01), Ishii et al.
patent: 5551971 (1996-09-01), Chadderton et al.
patent: 5560757 (1996-10-01), Suzuki et al.
patent: 5656048 (1997-08-01), Smith et al.

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