Connection unit

US11725568B2 · kind B2 · utility

Assignee

• Purem GmbH · DE

Inventors

• Benjamin Röhr · Eßlingen, DE
• Elke Preisser · Hamberg, DE

Key dates

• Filing date: Nov 19, 2020
• Grant date: Aug 15, 2023
• Expiry date: Jul 8, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2450/22
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A connection unit for connecting two exhaust gas-carrying assembly units of an exhaust system of an internal combustion engine, includes a ring washer-shape connection element (26) with a connection side (42), which is to be positioned to face a counter-connection element (24) to be connected to the connection element (26) or/and in contact with the counter-connection element (24). A passage opening (28), bordered by an inner circumferential surface (36) of the connection element (26), receives a connection pipe (30), which is inserted into the passage opening (28) and extends in the direction of a pipe longitudinal axis (L). The connection pipe (30) is connected to the connection element (26) in the area of the inner circumferential surface (36) by welding, or/and the connection pipe (30) projects with a centering section (40) on the connection side (42) of the connection element (26).