| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device for injecting a liquid to an exhaust gas flow, and an exhaust gas aftertreatment system.SOLUTION: A device for injecting a liquid, particularly an aqueous urea solution, to an exhaust gas flow includes at least one atomizing nozzle. The atomizing nozzle is designed as a two-component nozzle and the liquid is injected to the exhaust gas flow by means of pressurized air by using the atomizing nozzle, and the liquid is first directly mixed with the pressurized air in the outside of the nozzles when being injected from the respective nozzles, or is mixed with it in the outside thereof after being injected. The atomizing nozzle, or each atomizing nozzle, has a nozzle base body, a nozzle air cap and a nozzle insert which are formed as turning parts. The respective atomizing nozzles can be connected to a nozzle lance via the nozzle base body, and the nozzle air cap and the nozzle insert are received and held in the nozzle base body.</p> |
