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Venting system for a diesel exhaust fluid filler pipe

  • US 9,610,836 B2
  • Filed: 01/18/2013
  • Issued: 04/04/2017
  • Est. Priority Date: 09/05/2012
  • Status: Active Grant
First Claim
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1. A venting system for a vehicle, comprising:

  • a diesel exhaust fluid tank;

    a filler pipe coupled to the diesel exhaust fluid tank; and

    a plurality of cut-outs in an interior surface of the filler pipe along an interior diameter of the filler pipe in a top surface of the filler pipe;

    wherein each cut-out has a first arc-shape in a direction parallel to a central axis of the filler pipe,wherein a width of the cut-outs measured from the interior surface of the filler pipe to an exterior surface of the filler pipe decreases to zero in a direction from the top surface of the filler pipe toward the diesel exhaust fluid tank, andwherein a depth of the cut-outs extends from the top surface of the filler pipe toward the diesel exhaust fluid tank, the depth being less than a width of a wall of the filler pipe.

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