Invention Grant
US08266892B2 Calibrated dosing unit, especially of an exhaust gas treatment unit
有权
校准计量单元，特别是废气处理单元
- Patent Title: Calibrated dosing unit, especially of an exhaust gas treatment unit
- Patent Title (中): 校准计量单元，特别是废气处理单元
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Application No.: US12011329Application Date: 2008-01-25
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Publication No.: US08266892B2Publication Date: 2012-09-18
- Inventor: Friedrich Zapf , Thorsten Pelz , Heico Stegmann
- Applicant: Friedrich Zapf , Thorsten Pelz , Heico Stegmann
- Agency: Lipsitz & McAllister, LLC
- Priority: DE102007004687 20070125
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/10 ; G06F19/00 ; G01R35/00
Abstract:
The invention relates to a volume quantity dispensing unit, in particular as a unit for metering an aqueous solution such as a urea/water solution, which can be used in an exhaust gas aftertreatment unit (17), comprising a pressure transducer (1), in particular comprising an electric pressure sensor, the volume quantity dispensing of the volume quantity dispensing unit following an electric signal (2) and the volume quantity dispensing unit being calibrated. There is provided at least one means (3) for changing a pressure value (4), which means changes the pressure value (4) in such a way that the pressure value (4), which is intended to correspond to the pressure in the volume quantity dispensing unit, is an input signal for a volume quantity (5) to be dispensed.
Public/Granted literature
- US20080178580A1 Calibrated dosing unit, especially of an exhaust gas treatment unit Public/Granted day:2008-07-31
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