Filter for cleaning exhaust gases of diesel engines

Details Filter for cleaning exhaust gases of diesel engines Filter for cleaning exhaust gases of diesel engines

1988-10-28

1990-01-16

Woo, Jay H.

Gas separation

Two or more separators

55484, 55523, 55DIG30, 60311, F01N 302

Patent

active

048940747

ABSTRACT:
In a filter consisting of hollow cylindrical open-pore ceramic foam cylinder elements and an end plate made of gas-impermeable material, as an insert in a filter cup for cleaning exhaust gases of diesel engines, in which the exhaust gases flow through the active filter section essentially perpendicularly to the cylinder axis, bending moments which lead to breakage of the ceramic foam cylinder elements occur during fitting of the elements due to lack of surface evenness and plane-parallelism of the end faces. A filter of the aforementioned kind, in which the end faces of the ceramic foam cylinder elements are provided with temperature-resistant and thermal shock-resistant layers of material which are plastic at room temperature, avoids the bending moments.

REFERENCES:
patent: 3147097 (1964-09-01), Aguas
patent: 3811845 (1974-05-01), Nakamura
patent: 3847577 (1974-11-01), Hansen
patent: 4184564 (1980-01-01), Trainor
patent: 4416675 (1983-11-01), Montierth
patent: 4419113 (1983-12-01), Smith
patent: 4425304 (1984-01-01), Kawata et al.
patent: 4512786 (1985-04-01), Sakurai et al.
patent: 4728423 (1988-03-01), Kuwajima
patent: 4732594 (1988-03-01), Mizrah et al.

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