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US 2013/0152554 A1Published application
Metering unit for a reducing agent, method for metering reducing agent and motor vehicle having a metering unit
AssigneeEmitec Gesellschaft fur Emissionstechnologie mbH
InventorsROLF BRUECK, JAN HODGSON, PETER BAUER
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Abstract
A metering unit for a reducing agent includes an injector for supplying the reducing agent to an exhaust gas treatment device. A temperature sensor is disposed at the injector. A method for metering reducing agent and a motor vehicle having a metering unit are also provided.
Claims8
A metering unit for a reducing agent, the metering unit comprising:
- an injector for supplying the reducing agent to an exhaust gas treatment device;
- and
- a temperature sensor disposed at said injector.
A method for metering reducing agent into an exhaust gas treatment device by using an injector, the method comprising the following steps:
- a) determining a temperature of the reducing agent in vicinity of the injector;
- b) determining a flow behavior of the reducing agent as a function of the temperature;
- c) determining an opening time of the injector as a function of the flow behavior;
- and
- d) opening the injector for a certain opening time.
2 more elements
Dependencies are inferred from the claim text.