Patent · US Expired

Apparatus for removing soot from the exhaust gases of an internal combustion engine

US4811559A · kind A · utility

9Cited by
4References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 3, 1987
Grant dateMar 14, 1989
Priority date
Expiry dateNov 3, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S55/30
  • WIPO fieldEnvironmental technology
  • WIPO sectorChemistry

Abstract

An apparatus for removing soot from the exhaust gases of an internal combustion engine with the aid of a winding filter (surface filter) that is disposed on a support member. In order to burn off the soot in a controlled manner, this filter insert is provided with an appropriate electrode configuration. To simplify the electrode arrangement, and to improve the degree of soot deposition, the support member is designed as a wound or wrapped cage that undertakes the electrode arrangement, and untwisted roving threads, which are wound parallel to the periphery, i.e. at right angles to the axis of the wound cage, are used for forming the wrap structure.

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