- 专利标题: Fuel dispenser flow meter having vapor pressure correction arrangement
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申请号: US14929908申请日: 2015-11-02
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公开(公告)号: US09804016B2公开(公告)日: 2017-10-31
- 发明人: Michael Charles Liebal , Christopher Adam Oldham
- 申请人: Gilbarco Inc.
- 申请人地址: US NC Greensboro
- 专利权人: Gilbarco Inc.
- 当前专利权人: Gilbarco Inc.
- 当前专利权人地址: US NC Greensboro
- 代理机构: Nelson Mullins Riley & Scarborough, LLP
- 主分类号: G01F25/00
- IPC分类号: G01F25/00 ; B67D7/04 ; B67D7/08 ; G01F15/02 ; B67D7/20
摘要:
A method and apparatus for improving the accuracy of fuel flow meters by compensating for the presence of vapor bubbles generated within the flow meter. The method comprises measuring the temperature of the fuel flowing through the meter and using an algorithm or static lookup table to determine a vapor compensation factor based on that temperature. Because the tendency of fuel to vaporize depends largely on seasonal variations in fuel temperature, applying a temperature-dependent vapor compensation factor promotes year-round accuracy of the flow meter output.
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