US 2019/0170611 A1 · HOUSING CONNECTION ELEMENT

Abstract

A housing connection element (10) for a housing of an exhaust gas treatment assembly unit of an exhaust system, especially for an internal combustion engine, includes a first housing part (16) with an essentially cylindrical first connection area (18) for connection to a circumferential wall (14) of a housing (12) of an exhaust gas treatment assembly unit. A tapered area (20) is adjacent to the first connection area (18). An annular, second housing part (40) is connected to the tapered area (20). A second connection area (46) is provided for connection to an exhaust gas-carrying component of an exhaust system. At least one sensor sleeve (48, 50) is in a sleeve receiving area (24) of the first housing part (16). The sleeve receiving area (24) is formed in the tapered area (20).

Claims20

Dependent claims

A housing connection element for a housing of an exhaust gas treatment assembly unit of an exhaust system for an internal combustion engine, the housing connection element comprising:

a first housing part comprising an essentially cylindrical first connection area for connection to a circumferential wall of a housing of an exhaust gas treatment assembly unit and a tapered area adjacent to the first connection area;
an annular, second housing part, the second housing part being connected to the tapered area, the second housing part comprising a second connection area for connection to an exhaust gas-carrying component of an exhaust system;
and
at least one sensor sleeve in a sleeve receiving area of the first housing part, the sleeve receiving area being formed in the tapered area.

1 more element

An exhaust gas treatment assembly unit comprising:

a tubular circumferential wall;
and
a housing connection element at an end area of the circumferential wall, the housing connection element comprising:
a first housing part comprising an essentially cylindrical first connection area for connection to a circumferential wall of a housing of an exhaust gas treatment assembly unit and a tapered area adjacent to the first connection area;
an annular, second housing part, the second housing part being connected to the tapered area, the second housing part comprising a second connection area for connection to an exhaust gas-carrying component of an exhaust system;
and
at least one sensor sleeve in a sleeve receiving area of the first housing part, the sleeve receiving area being formed in the tapered area.

4 more elements

A process for the manufacture of a housing connection element comprising a first housing part comprising an essentially cylindrical first connection area for connection to a circumferential wall of a housing of an exhaust gas treatment assembly unit and a tapered area adjacent to the first connection area, an annular, second housing part, the second housing part being connected to the tapered area, the second housing part comprising a second connection area for connection to an exhaust gas-carrying component of an exhaust system, and at least one sensor sleeve in a sleeve receiving area of the first housing part, the sleeve receiving area being formed in the tapered area, the process comprising the steps of:

providing the first housing part as a shaped sheet metal part with an exhaust gas passage opening in an end area of the tapered area and with at least one sleeve receiving opening in the sleeve receiving area;
providing the second housing part;
connecting the second housing part to the first housing part, in the area of the exhaust gas passage opening formed therein, by laser welding;
and
inserting a sensor sleeve into the at least one sleeve receiving opening and connection of the sensor sleeve to the first housing part by laser welding.

2 more elements

Dependencies are inferred from the claim text.

Housing connection element

Life of this patent

Housing connection element

Life of this patent

Abstract

Claims20