Invention Grant
US09556774B2 Conveying unit for a liquid additive for exhaust gas after-treatment, tank for storing liquid additive, motor vehicle having the conveying unit and method for determining a liquid additive quantity in a tank
有权
用于废气后处理的液体添加剂的输送单元，用于储存液体添加剂的罐，具有输送单元的机动车辆和用于确定罐中的液体添加剂量的方法
- Patent Title: Conveying unit for a liquid additive for exhaust gas after-treatment, tank for storing liquid additive, motor vehicle having the conveying unit and method for determining a liquid additive quantity in a tank
- Patent Title (中): 用于废气后处理的液体添加剂的输送单元，用于储存液体添加剂的罐，具有输送单元的机动车辆和用于确定罐中的液体添加剂量的方法
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Application No.: US14474469Application Date: 2014-09-02
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Publication No.: US09556774B2Publication Date: 2017-01-31
- Inventor: Jan Hodgson , Joerg-Roman Konieczny
- Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
- Applicant Address: DE Lohmar
- Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
- Current Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
- Current Assignee Address: DE Lohmar
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102012004269 20120302
- Main IPC: F01N11/00
- IPC: F01N11/00 ; F01N3/20
Abstract:
A conveying unit which can be mounted in a tank for conveying a liquid additive from the tank includes a filling level sensor which can emit and receive waves that are reflected back to the filling level sensor at a surface of liquid in the tank, so that a filling level measurement can be carried out by measuring the transit time of the waves. The conveying unit has at least one additional sensor device or sensor with which it is possible to determine if there is frozen additive in the tank. A tank for storing a liquid additive, a motor vehicle having the conveying unit and a method for determining a liquid additive quantity in a tank are also provided.
Public/Granted literature
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