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Fan case bushing

  • US 10,352,328 B2
  • Filed: 11/23/2015
  • Issued: 07/16/2019
  • Est. Priority Date: 11/23/2015
  • Status: Active Grant
First Claim
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1. A casing flange coupling assembly comprising:

  • a first casing comprising a first flange, said first flange including at least one circular bolt hole;

    a second casing coupled to said first casing, said second casing comprising a second flange, said second flange including at least one circular bolt hole aligned with said first flange bolt hole, wherein said second flange at least one bolt hole has a diameter larger than said first flange at least one circular bolt hole diameter;

    a bushing coupled to said second flange, said bushing comprising a body portion including a cylinder portion having a circular bore configured to receive a circular bolt, said cylinder portion having an outer diameter configured to insert into and abut the second flange at least one bolt hole;

    a flange portion orthogonal and integral to said cylinder portion, said flange portion configured to couple with a load bearing surface of said second flange;

    a lip portion integral to said flange portion proximate said cylinder portion, wherein said lip portion redistributes a flange load; and

    said circular bolt inserted through said circular bore and said first flange at least one circular bolt hole;

    wherein said lip portion comprises a curvilinear shape that matches a radius of a fillet of said second flange.

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