Engine exhaust after-treatment device

Details Engine exhaust after-treatment device Engine exhaust after-treatment device

1987-10-07

1989-03-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

55466, 55523, 55DIG30, 60286, 60303, F01N 302

Patent

active

048132314

ABSTRACT:
A diesel particulate trap formed from silicon carbide cermet foam with associated hardware to retain the foam in a particular configuration. Several pieces of the foam, in the shape of "doughnuts", are stacked on top of each other. The stack of foam doughnuts is assembled in a container designed to allow diesel exhaust to flow radially inward through the doughnuts and exit through the center. Ceramic felt gaskets are interposed between the doughnuts and between each of the end doughnuts and steel end plates. These gaskets serve as buffers and allow for different thermal expansion properties of the steel and silicon carbide cermet foam. The silicon carbide is conducting and has resistance and when current is passed through the foam doughnuts, they become hot enough to burn the collected particulate.

REFERENCES:
patent: 4485621 (1984-12-01), Wong
patent: 4535589 (1985-08-01), Yoshida

Affiliated with

Also associated with

Rating

Engine exhaust after-treatment device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine exhaust after-treatment device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine exhaust after-treatment device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-469294