Mounting having at least one electrode and exhaust line device having at least one mounting

Patent metadata

Field	Value
Publication number	US-9217356-B2
Application number	US-201414228509-A
Country	US
Kind code	B2
Filing date	Mar 28, 2014
Priority date	Sep 28, 2011
Publication date	Dec 22, 2015
Grant date	Dec 22, 2015

Abstract

A mounting includes at least one electrode producing electric fields in an exhaust gas line, a disk of electrically insulating material having inflow and outflow sides and openings for exhaust gas, and at least one electrical conductor fastened to and/or in the disk. The electrical conductor is covered by the electrically insulating material at least on the inflow side and in electrical contact with the electrodes extending toward the outflow side. Since the electrical conductor is completely surrounded by insulating material during operation, an area that must be covered by a soot layer for a leakage current to develop is increased. The leakage length increases and one or more electrodes are in the exhaust gas at the same time. The soot particles deposited on the mounting and the exhaust gas line, need to be removed less often. An exhaust line device having at least one mounting is also provided.

First claim

The invention claimed is:

1. A mounting for an exhaust line, the mounting comprising:
a disk formed of an electrically insulating material, said disk having an inflow side, an outflow side and openings through which an exhaust gas can flow from said inflow side to said outflow side;
one or a plurality of electrodes extending toward said outflow side and configured to generate electric fields in the exhaust line; and
at least one electrical conductor fastened at least one of on or in said disk, said electrical conductor being covered by said electrically insulating material at least at said inflow side of said disk, and said electrical conductor being in electrical contact with said one or plurality of electrodes.

2. The mounting according to claim 1 , wherein said at least one electrical conductor has an elongation configured to be led through a wall of the exhaust line.

3. The mounting according to claim 1 , wherein said at least one electrical conductor is fastened in at least one groove formed in said disk.

4. The mounting according to claim 1 , which further comprises a connecting material fastening said at least one electrical conductor at least one of on or in said disk.

5. The mounting according to claim 1 , which further comprises a cover disposed on said outflow side of said disk, said cover having cutouts formed therein for receiving said one or plurality of electrodes.

6. The mounting according to claim 1 , wherein said one or plurality of electrodes and said at least one electrical conductor are connected to one another by at least one of a force-locking, a form-locking or a material connection.

7. The mounting according to claim 1 , wherein said disk is pot-shaped and has an outer region projecting toward said outflow side.

8. The mounting according to claim 7 , wherein said projecting outer region extends along the exhaust line beyond at least one electrode.

9. The mounting according to claim 1 , wherein said disk is configured to be installed into the exhaust line in an approximately transverse configuration and substantially completely spans a cross section of the exhaust line.

10. The mounting according to claim 1 , wherein said at least one electrical conductor includes at least first and second electrical conductors being electrically insulated from one another, and said one or plurality of electrodes includes a first group and a second group of electrodes each being in electrical contact with a respective one of said first and second electrical conductors.

11. In an exhaust line carrying exhaust gas from an internal combustion engine, a device for ionizing soot particles in the exhaust gas, the device comprising:
at least one mounting according to claim 1 ; and
a particle separator disposed downstream of said at least one mounting in exhaust gas flow direction.

12. The device according to claim 11 , wherein said particle separator forms a counter electrode.

Assignees

• Emitec Emissionstechnologie

Inventors

• Hodgson Jan
• Vorsmann Christian

Classifications

• F01N13/008 Primary

  Mounting or arrangement of exhaust sensors in or on exhaust apparatus (sensor arrangements for engine control F02D41/1439) · CPC title

• F01N3/0275

  using electric discharge means · CPC title

• F01N2240/28

  a plasma reactor · CPC title

• F01N3/01 Primary

  by means of electric or electrostatic separators · CPC title

• B01D53/92

  of engine exhaust gases (exhaust {or silencing} apparatus {for internal combustion engines, machines or engines in general}, having means for purifying, {rendering innocuous} or otherwise treating exhaust gases F01N3/00) · CPC title