Cleaning apparatus and method for fuel and other passages
First Claim
1. Apparatus for cleaning an internal passage of an article, comprising:
- a) a container for cleaning fluid,b) means for communicating a first end of the passage to said cleaning fluid,c) cleaning fluid conduit means communicated to a second end of said passage in a manner to draw cleaning fluid from said container into said passage through said first end and into said conduit means through said second end in response to flow of cleaning fluid through said conduit means,d) means for supplying cleaning fluid to said conduit means, ande) means for blocking flow of cleaning fluid through said conduit means so as to direct the cleaning fluid therein to flow into said passage through said second end and into said container through said first end.
1 Assignment
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Accused Products
Abstract
Apparatus for cleaning an internal passage of an article, such as a fuel passage of a gas turbine or other engine. The apparatus comprises a container for containing cleaning fluid, means for communicating a first end of the passage to the cleaning fluid in the container, and cleaning fluid conduit means communicated to a second end of the passage in a manner to draw cleaning fluid from the container to flow through the passage from the first end toward the second end in response to flow of cleaning fluid through the conduit means. The apparatus includes means for blocking flow of cleaning fluid through the conduit means so as to direct the cleaning fluid therein to flow through the passage from the second end toward the first end and into the container.
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Citations
15 Claims
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1. Apparatus for cleaning an internal passage of an article, comprising:
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a) a container for cleaning fluid, b) means for communicating a first end of the passage to said cleaning fluid, c) cleaning fluid conduit means communicated to a second end of said passage in a manner to draw cleaning fluid from said container into said passage through said first end and into said conduit means through said second end in response to flow of cleaning fluid through said conduit means, d) means for supplying cleaning fluid to said conduit means, and e) means for blocking flow of cleaning fluid through said conduit means so as to direct the cleaning fluid therein to flow into said passage through said second end and into said container through said first end. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Apparatus for cleaning a fuel passage of a fuel injection device, comprising:
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a) a container for cleaning fluid, b) means for communicating a fuel outlet of said passage to said cleaning fluid, c) cleaning fluid conduit means communicated a fuel inlet of said passage in a manner to draw cleaning fluid from said container into said passage through said fuel outlet and into said conduit means through said fuel inlet in response to flow of cleaning fluid through said conduit means, d) means for supplying cleaning fluid to said conduit means, and e) means for blocking flow of cleaning fluid through said conduit means so as to direct the cleaning fluid therein to flow into said passage through said fuel inlet and into said container through said fuel outlet. - View Dependent Claims (9, 10, 11, 12)
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13. Apparatus for cleaning a fuel passage of a gas turbine engine fuel injection device having a fuel inlet fitting for supplying fuel to said passage and a fuel discharge orifice for discharging fuel from said passage to an engine combustor, comprising:
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a) a container for cleaning fluid, b) means for communicating said fuel discharge orifice to said cleaning fluid in said container, c) cleaning fluid conduit means communicated said inlet fitting in a manner to draw cleaning fluid from said container into said passage through said fuel discharge orifice and into said conduit means through said fuel inlet fitting in response to flow of cleaning fluid through said conduit means, d) means for supplying cleaning fluid to said conduit means, and e) means for blocking flow of cleaning fluid through said conduit means so as to direct the cleaning fluid therein to flow into said passage through said fuel inlet fitting and into said container through said fuel discharge orifice. - View Dependent Claims (14, 15)
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Specification