Invention Grant
US08176774B2 Process and device for testing the mobility of a negative pressure relief valve of the fuel system of a motor vehicle
有权
用于测试机动车辆的燃料系统的负压溢流阀的流动性的过程和装置
- Patent Title: Process and device for testing the mobility of a negative pressure relief valve of the fuel system of a motor vehicle
- Patent Title (中): 用于测试机动车辆的燃料系统的负压溢流阀的流动性的过程和装置
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Application No.: US12061501Application Date: 2008-04-02
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Publication No.: US08176774B2Publication Date: 2012-05-15
- Inventor: Siegfried Meixner
- Applicant: Siegfried Meixner
- Applicant Address: DE Ingolstadt
- Assignee: Audi AG
- Current Assignee: Audi AG
- Current Assignee Address: DE Ingolstadt
- Agency: Novak Druce + Quigg LLP
- Priority: DE102007016217 20070404
- Main IPC: G01M15/09
- IPC: G01M15/09
Abstract:
The invention relates to a method for testing the mobility of the negative pressure relief valve of the fuel system of a motor vehicle, the negative pressure relief valve depending on the pressure within the fuel system having to be moved between a closed position which closes the fuel system and an open position which clears the fuel system, with the following steps: a) Testing the position of the negative pressure relief valve; and b) Testing the position of the negative pressure relief valve in reaction to a pressure increase within the fuel system if the negative pressure relief valve in step a) was in the closed position. The invention furthermore relates to a system for testing the mobility of the negative pressure relief valve of the fuel system of a motor vehicle.
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