Patent · US Expired

System for the regeneration of a particulate filter trap

US4897096A · kind A · utility

37Cited by

5References

3Claims

0Family size

Assignee

FEV Motorentechnik GmbH & Co., KG · DE

Inventors

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

Key dates

Filing date	Jul 5, 1988
Grant date	Jan 30, 1990
Priority date	—
Expiry date	Jul 5, 2008

Classification

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

Abstract

A system for the regeneration, by oxidation, of the particulates deposited in a particulate filter trap of an internal cumbustion engine provided for purifying the engine exhaust gas, in which the thickness of the particulates deposited in a given area in the trap is determined relative to a predetermined thickness in excess of which the filter trap will operate inefficiently, and the excess thickness being reduced by regeneration.

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