Abstract: Embodiments of the invention are directed to an exhaust system for a combustion engine with a bent pipe section conducting an exhaust gas flow. The exhaust system further includes an injector for introducing a liquid reduction agent into the exhaust gas flow, which is connected to the pipe section via a connecting pipe so that the injector can introduce the reduction agent through the connecting pipe into an introduction region of the pipe section into the exhaust gas flow. The risk of a crystallization of the reduction agent can be reduced with a return flow plate, which in the pipe section is arranged upstream of the introduction region.

Abstract: A vehicle burner (6) for heating a gas flow (14) in a motor vehicle is provided with a fuel pump (10) for delivering a fuel to an injection nozzle (11) that can be actuated for injecting the fuel into a combustion chamber (7), with an air delivery device (16) for delivering air to the combustion chamber (7), with a control (17) for operating the. A vehicle burner (6), which is coupled with the fuel pump (10), with the air delivery and/or air regulating device (16) and with the injection nozzle (11). Burner waste gas, which is generated during the operation of the. A vehicle burner (6) by the reaction of fuel with air in the combustion chamber (7), is used to heat the gas flow (14). To increase efficiency, a control (17) determines a quantity of fuel, a quantity of air and a fuel pressure as a function of a presettable heat output.

Abstract: Embodiments of the invention are directed to an exhaust system for a combustion engine with a bent pipe section conducting an exhaust gas flow. The exhaust system further includes an injector for introducing a liquid reduction agent into the exhaust gas flow, which is connected to the pipe section via a connecting pipe so that the injector can introduce the reduction agent through the connecting pipe into an introduction region of the pipe section into the exhaust gas flow. The risk of a crystallisation of the reduction agent can be reduced with a return flow plate, which in the pipe section is arranged upstream of the introduction region.

Abstract: The present invention relates to a static mixer (9) for installation in a fluid line, in particular exhaust line (5) of a combustion engine (1), with an annular body (10) comprising at least one blade row (11) with a plurality of guide blades (12) standing away from the annular body (10) to the inside. A cost-effective producibility is obtained when the annular body (10) in the circumferential direction (13) consists of at least two part bodies (14), when part bodies (14) adjacent in the circumferential direction (13) are fastened to one another and when each part body (14) comprises a plurality of guide blades (12).

Abstract: The present invention relates to an exhaust system for a combustion engine, particularly of a vehicle, with an oxidation catalytic converter (oxicat), with an electrically heatable catalytic converter (E-cat) arranged upstream of the oxicat and with a fuel injector arranged upstream of the E-cat. An energetically favourable mode of operation is achieved when a particle filter is arranged downstream of the oxicat, when a bypass path bypassing the E-cat commences downstream of the fuel injector and ends upstream of the oxicat and when the E-cat is designed for a smaller exhaust gas flow rate than the oxicat.