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Liquid level detecting apparatus

  • US 7,204,142 B2
  • Filed: 08/31/2006
  • Issued: 04/17/2007
  • Est. Priority Date: 10/02/2003
  • Status: Active Grant
First Claim
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1. A liquid level detecting apparatus for a vehicle comprising:

  • a tank for storing liquid;

    an ultrasonic sensor disposed in a bottom of the tank;

    a bracket for accommodating and holding the ultrasonic sensor therein; and

    a fixing member for pressing the ultrasonic sensor toward an inner surface of the bracket to cause an ultrasonic generation surface of the ultrasonic sensor to closely touch the inner surface of the bracket, so that the ultrasonic sensor transmits an ultrasonic wave into the liquid from a front surface provided opposite to the inner surface and receives a reflection wave of the ultrasonic wave,wherein the bracket has a through hole that communicates an inner space of the bracket and an outer space of the bracket.

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