Method and apparatus for multi-line fuel delivery

  • US 10,604,403 B2
  • Filed: 03/28/2017
  • Issued: 03/31/2020
  • Est. Priority Date: 03/28/2016
  • Status: Active Grant
First Claim
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1. An apparatus for refueling at least one internal combustion engine comprising:

  • a. a bulk storage tank containing fuel, wherein said bulk storage tank is adapted to be raised to a higher elevation than an inlet of a fuel tank of said at least one internal combustion engine;

    b. a conduit having a first end and a second end, wherein said first end is in fluid communication with said bulk storage tank and said second end is attached to said inlet of said fuel tank of said at least one internal combustion engine; and

    c. a float valve assembly operationally attached to said second end of said conduit and disposed in said fuel tank of said at least one internal combustion engine, wherein said float valve assembly is adapted to permit fuel to gravity feed from said bulk storage tank into said fuel tank through said conduit, but to block fuel flow from said conduit into said fuel tank when fuel in said fuel tank reaches a predetermined level, wherein said float valve assembly further comprises;

    a. a sleeve member having a top, a fluid inlet, a length, an inner chamber and a bottom having an opening extending into said inner chamber;

    b. a seat member defining an opening, wherein said seat member is disposed in said sleeve member between said fluid inlet and said inner chamber;

    c. a ball disposed on said seat member to create a fluid pressure seal;

    d. a substantially buoyant float member slidably disposed in said inner chamber; and

    e. a linkage assembly disposed between said float member and said seat member, wherein said linkage assembly lifts said ball from said seat and breaks said fluid pressure seal when said float member reaches a predetermined position along the length of said sleeve member.

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