Patent · US Expired

Process for the regeneration of engine emission particulates deposited in a particulate trap

US4709547A · kind A · utility

11Cited by

2References

13Claims

0Family size

Assignee

FEV Motorentechnik GmbH & Co., KG · DE

Inventors

Franz Pischinger · Aachen, DE
Gerhard Lepperhoff · Eschweiler, DE
Georg Huthwohl · Soest, DE

Key dates

Filing date	Feb 18, 1987
Grant date	Dec 1, 1987
Priority date	—
Expiry date	Feb 18, 2007

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/029
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A process for the regeneration of engine emission particulates collected in particulate filter traps associated with each of the engine cylinders, or with groups of such cylinders, includes the selective elevation of the emission temperature of at least one of the cylinders or groups to the extent required for regeneration, by oxidation, of the filter trap or traps associated therewith, by supplying engine fuel to such cylinder or cylinders in a predtermined amount to produce the elevated emission temperature, and supplying the remaining of the cylinders with amounts of engine fuel less than such predetermined amount as required to sustain the given engine power output.

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