Exhaust gas treatment device

US9399938B2 · kind B2 · utility

Assignee

• Eberspächer Exhaust Technology GmbH · DE

Inventors

• Marcus Werni · Waiblingen, DE
• Simon Ehrler · Esslingen am Neckar, DE
• Kirill Karelin · Hessenhöfe, DE

Key dates

• Filing date: Sep 25, 2014
• Grant date: Jul 26, 2016
• Expiry date: Sep 25, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An exhaust gas treatment device (1) includes a combustion waste gas inlet pipe (2), an outlet pipe, an essentially gas-tight inner housing (7) fluidically connected with the inlet pipe and fluidically connected with the outlet pipe. The inner housing receives a particle filter (4). A connection element (9) is arranged in a connection area (8) of the inner housing. The connection area fluidically faces the outlet pipe (3), for mechanically connecting the particle filter with the inner housing. An oxidation catalytic converter (5) is arranged upstream of the particle filter in the inner housing for catalyzing an oxidation reaction of the combustion waste gas. A counterpressure monitoring point (10, 11, 12) is provided fluidically between the oxidation catalytic converter and the connection element for measuring a counterpressure exerted by the particle filter during the operation of the treatment device. An internal combustion engine (24) is provided with the treatment device.