| 摘要 |
PURPOSE: An LP-EGR(Exhaust Gas Recirculation) cooler differential pressure sensor is provided to enhance the durability a thermal vibration side by mounting a pressure sensor cell inside a housing and installing a wire-ring inside a gel of the pressure sensor cell. CONSTITUTION: An LP-EGR cooler differential pressure sensor(100) comprises a first pressure pipe(110), a second pressure pipe(120), a pressure sensor housing(130), and a pressure measuring part(140). The first pressure pipe is connected to an upper stream of an LP-EGR cooler. The second pressure pipe is connected to a downstream of the LP-EGR cooler. The pressure sensor housing is connected to the first and second pressure pipes. The pressure measuring part is separately inserted into the housing and comprises a sensor chip and a pressure sensor cell(144) where the sensor chip is seated.
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