Venting system for a diesel exhaust fluid filler pipe
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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Abstract
A venting system for a filler pipe coupled to a diesel exhaust fluid tank in a vehicle is provided. In one example approach the venting system comprises a plurality of cut-outs in an interior surface of the filler pipe along the interior diameter of the filler pipe in a top surface of the filler pipe.
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Citations
12 Claims
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1. A venting system for a vehicle, comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A venting system for a vehicle, comprising:
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a diesel exhaust fluid tank; a filler pipe coupled to the diesel exhaust fluid tank; and a plurality of rounded 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, where the rounded cut-outs extend from the interior diameter of the filler pipe towards an outer diameter of the filler pipe and do not intersect an outer surface of the filler pipe at the outer diameter, and wherein adjacent cut-outs in the plurality of cut-outs are separated by non-cut-out regions in the 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 the outer 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, wherein 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, and wherein each cut-out has a second arc-shape on the interior surface of the filler pipe, the second arc-shape being oriented tangentially to the interior surface. - View Dependent Claims (11, 12)
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Specification