Exhaust system
AssigneeJ. Eberspächer GmbH & Co. KG
InventorsRobert Hanitzsch, Josef Rudelt
Life of this patent
Estimating the term…
Abstract
The present invention relates to an exhaust system for an internal combustion engine, in particular in a motor vehicle, having an exhaust line carrying exhaust gas away from the internal combustion engine and having a fuel injector for injecting fuel into the exhaust line. The fuel injector is mounted on the exhaust line via a mounting device. This mounting device has a receiving body into which the fuel injector is inserted and which is mounted on the exhaust line via a disk-shaped flange. To reduce the risk of overheating of the fuel injector, the flange is mounted on the receiving body via a constriction in cross section and/or on the exhaust line via a thermal insulator.
Claims17
An exhaust system for an internal combustion engine comprising:
- an exhaust line carrying exhaust away from the internal combustion engine;
- at least one fuel injector for injecting fuel into the exhaust line;
- the fuel injector mounted on the exhaust line by a mounting device;
- the mounting device having
- a receiving body into which the fuel injector is inserted;
- the receiving body mounted on the exhaust line via a disk-shaped flange, wherein the flange is mounted on the receiving body via a constriction in the cross section,
- wherein the flange has a sleeve encompassing a central opening on a side facing away from the receiving body,
- wherein the exhaust line comprises an opening and wherein the inside cross section of the exhaust line opening is larger than the outside cross section of the sleeve thereby creating a gap between the exhaust line opening and said sleeve, and
- wherein said sleeve is not in contact engagement with said exhaust line.
An exhaust system for an internal combustion engine comprising:
- an exhaust line carrying exhaust away from the internal combustion engine;
- at least one fuel injector for injecting fuel into the exhaust line;
- the fuel injector mounted on the exhaust line by a mounting device;
- the mounting device having
- a receiving body into which the fuel injector is inserted;
- the receiving body mounted on the exhaust line via a disk-shaped flange, wherein the flange is mounted on the exhaust line via a thermal insulator,
- wherein the flange has a sleeve encompassing a central opening on a side facing away from the receiving body,
- wherein the exhaust line comprises an opening and wherein the inside cross section of the exhaust line opening is larger than the outside cross section of the sleeve thereby creating a gap between the exhaust line opening and said sleeve, and
- wherein said sleeve is not in contact engagement with said exhaust line.
An exhaust system for an internal combustion engine comprising:
- an exhaust line carrying exhaust away from the internal combustion engine;
- at least one fuel injector for injecting fuel into the exhaust line;
- the fuel injector mounted on the exhaust line by a mounting device;
- the mounting device having
- a receiving body into which the fuel injector is inserted;
- the receiving body mounted on the exhaust line via a disk-shaped flange, wherein the flange is mounted on the receiving body via a constriction in the cross section and/or is mounted on the exhaust line via a thermal insulator,
- wherein the receiving body includes a tension sleeve on a side facing away from the flange, said tension sleeve surrounding the fuel injector at least partially coaxially with the central longitudinal axis thereof and having a tension body on an end section facing away from the flange, said tension body pressing the fuel injector axially with tension against the receiving body, and
- wherein the tension sleeve includes a recess that is open axially on the end section facing away from the flange, an electric connection of the fuel injector passing through said recess.
Dependencies are inferred from the claim text.