Filler tube assembly
First Claim
1. A filler tube assembly for communicating fuel from a fuel pump nozzle to a fuel tank with the fuel pump nozzle having a pressure sensing port, said filler tube assembly comprising:
- a receiver having an inner wall defining an aperture for receiving the fuel pump nozzle with said inner wall defining an orifice extending through said inner wall transverse to said aperture;
a seal coupled to said inner wall about said orifice for defining a chamber between said inner wall, said seal, and the fuel pump nozzle; and
an air path extending between a first end in fluid communication with said orifice and a second end for disposition in fluid communication with the fuel tank;
said receiver defining an abutting surface rigidly extending from said inner wall into said aperture for seating the fuel pump nozzle in said aperture to dispose the pressure sensing port in said chamber and to align the pressure sensing port with said orifice.
1 Assignment
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Accused Products
Abstract
A filler tube assembly is used with a fuel pump nozzle having a pressure sensing port. The filler tube assembly includes a receiver having an inner wall defining an aperture, which receives the pump nozzle. The inner wall defines an orifice and a seal is coupled to the inner wall about the orifice for defining a chamber between the inner wall, the seal, and the fuel pump nozzle when the fuel pump nozzle is disposed in the aperture. A vacuum tube has a coupled end in fluid communication with the orifice and an open end in fluid communication with the fuel tank. The receiver defines a rim for seating the fuel pump nozzle in the aperture to align the pressure sensing port with the orifice. When fuel covers the open end of the vacuum tube, a pressure change is transmitted through the filler tube assembly to the pressure sensing port.
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Citations
24 Claims
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1. A filler tube assembly for communicating fuel from a fuel pump nozzle to a fuel tank with the fuel pump nozzle having a pressure sensing port, said filler tube assembly comprising:
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a receiver having an inner wall defining an aperture for receiving the fuel pump nozzle with said inner wall defining an orifice extending through said inner wall transverse to said aperture; a seal coupled to said inner wall about said orifice for defining a chamber between said inner wall, said seal, and the fuel pump nozzle; and an air path extending between a first end in fluid communication with said orifice and a second end for disposition in fluid communication with the fuel tank; said receiver defining an abutting surface rigidly extending from said inner wall into said aperture for seating the fuel pump nozzle in said aperture to dispose the pressure sensing port in said chamber and to align the pressure sensing port with said orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 22)
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15. A fuel storage system for receiving fuel from a fuel pump nozzle having a pressure sensing port, said fuel storage system comprising:
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a fuel tank defining an interior for storing fuel; a vent tube including an first end for communication with ambient atmosphere and a second end coupled to said fuel tank and in fluid communication with said interior; and a filler tube assembly coupled to said fuel tank for communicating fuel from a fuel pump nozzle to said fuel tank, said filler tube assembly comprising; a receiver having an inner wall defining an aperture for receiving the fuel pump nozzle with said inner wall further defining an orifice extending through said inner wall transverse to said aperture; a seal coupled to said inner wall about said orifice for defining a chamber between said inner wall, said seal, and the fuel pump nozzle; and an air path extending between a first end in fluid communication with said orifice and a second end disposed in fluid communication with said fuel tank; said receiver defining an abutting surface rigidly extending from said inner wall into said aperture for seating the fuel pump nozzle in said aperture to dispose the pressure sensing port in said chamber and to align the pressure sensing port with said orifice. - View Dependent Claims (16, 17, 18, 19, 20, 21, 23, 24)
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Specification