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FUEL PROPERTY SENSOR

  • US 20100244857A1
  • Filed: 03/24/2010
  • Published: 09/30/2010
  • Est. Priority Date: 03/24/2009
  • Status: Active Grant
First Claim
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1. A fuel property sensor comprising:

  • a housing defining a fuel chamber in which a fuel passes;

    a pair of first and second electrodes arranged in the fuel chamber to measure an electric capacitance therebetween so as to detect a mixing ratio of alcohol to gasoline in the fuel, the first electrode being located such that an outer wall surface of the first electrode is exposed in the fuel;

    a sensing portion contacting an inner wall surface of the first electrode, to detect a temperature of the liquid fluid via the first electrode;

    a lead configured to support the sensing portion, the lead having one end portion connected to the sensing portion and the other end portion connected to a plate portion attached to the housing; and

    an elastic deformation portion provided as a part of the lead,wherein the elastic deformation portion is configured to be elastically deformed and to cause the sensing portion to be biased in a direction on which the sensing portion contacts the inner wall surface of the first electrode.

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