Fuel/air separation system

  • US 7,025,048 B2
  • Filed: 05/06/2005
  • Issued: 04/11/2006
  • Est. Priority Date: 02/21/2003
  • Status: Active Grant
First Claim
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1. In combination with a fuel filter canister having a filter element disposed in the canister and sealingly separating the canister into a clean side and a dirty side, an apparatus for separating entrained air and/or vapor from the fuel comprising:

  • a base having an inlet port for receiving the fuel with entrained air and/or vapor, an outlet port, a return port, and a receiver for sealingly mounting the canister to said base,said inlet port in communication with the dirty side of said canister,said return port in communication with an upper portion of the clean side of said canister,said outlet port in communication with the clean side of said canister,a draw tube coupled to said outlet port and having an opening extending to a lower portion of said clean side of said canister,wherein fuel with entrained air and/or vapor enters said inlet port of said base and passes through said filter element, said air and/or vapor separates from said fuel rises to said upper portion of the clean side of said canister and exits through said return port in said base, and wherein fuel without entrained air and/or vapor enters said opening in said draw tube extending to said lower portion of said clean side of said canister and exits through said draw tube to said outlet port.

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