Patent · US Expired

Particle filtration and removal system

US4634459A · kind A · utility

21Cited by

4References

12Claims

0Family size

Assignee

FEV Forschungsgesellschaft fur Energietechnik und Verbrennungsmotoren mbH · DE

Inventors

Franz Pischinger · Aachen, DE
Gerhard Lepperhoff · Eschweiler, DE

Key dates

Filing date	Feb 10, 1986
Grant date	Jan 6, 1987
Priority date	—
Expiry date	Feb 10, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/30
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a particle filter device containing porous filter material adapted for the exhaust flow of a diesel engine to filter particles from the exhaust gasses discharged from the engine, a system for the removal of filtered particles collected on the filter material, wherein the removal is effected by oxidation, includes a housing containing the filter material and having a flow control nozzle, the cross-section of which is reduced in the direction of the filter material for directing the gas stream to be purified toward the porous filter material in such a manner that described purification zones of the filter material are preferentially impacted by the through-flowing gas to be purified.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.