Diesel fuel exhaust gas filter
OwnerCarl M. Fleckinventor
Life of this patent
Estimating the term…
Abstract
Soot particles are separated from diesel exhaust gases and burned by passing them in a direction of flow through a cellular filter open at both ends and comprised of honeycomb-shaped cells, and subjecting the soot particles to an electric or magnetic field before the soot particles are burned. The honeycomb-shaped cells are very wide transversely to the direction of flow and very flat in the direction of flow, and the webs of the honeycomb-shaped cells extending in the direction of flow are very thin.
Claims22
A method of separating soot particles from diesel fuel exhaust gases and burning the separated soot particles, which comprises the step of separating the soot particles by passing them in a direction of flow through a cellular filter open at both ends and comprised of honeycomb-shaped cells, and subjecting the soot particles in the cellular filter to a field extending perpendicularly to said direction before the soot particles are burned.
A method of separating soot particles from diesel fuel exhaust gases and burning the separated soot particles, which comprises the steps of separating the soot particles by passing them in a direction of flow through a cellular filter open at both ends and comprised of honeycomb-shaped cells, subjecting the soot particles in the cellular filter to an electric field extending perpendicularly to the direction of flow before the soot particles are burned, and delivering ohmic heat to the cellular filter due to the inner resistance of the filter to the electric field applied to the filter.
An apparatus for separating soot particles from diesel fuel exhaust gases, which comprises
- (a) a cellular filter open at both ends and comprised of honeycomb-shaped cells wherethrough the soot particles are passed in a direction of flow, and
- (b) means for applying a field extending perpendicularly to the direction of flow to the cellular filter,
- (1) the honeycomb-shaped cells having a cross section of substantially larger dimension perpendicularly to the direction of flow and to the extension of the field than perpendicularly to the direction of flow and in the direction of the extension of the field, and
- (2) the webs of the honeycomb-shaped cells extending in the direction of flow being very thin.
Dependencies are inferred from the claim text.