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Air pre-cleaner

  • US 6,280,493 B1
  • Filed: 03/19/1999
  • Issued: 08/28/2001
  • Est. Priority Date: 03/19/1999
  • Status: Expired due to Term
First Claim
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1. An air pre-cleaner that separates particulates from air comprising:

  • a hood having at least one opening through which air enters the pre-cleaner;

    a vane assembly including a centrally positioned dome, a collar encircling said dome and a plurality of vanes each vane being connected at an inner end to said dome and at an outer end to said collar, each vane being angled in relation to a horizontal plane, and wherein a pitch of at least one vane of said plurality of vanes is twisted along its length to keep a chord width of the at least one vane relatively constant over the length thereof;

    a rotating impeller assembly rotatably mounted to said vane assembly; and

    a base to which said vane assembly and said hood are secured wherein said base includes at least one clean air outlet opening through which air exits the pre-cleaner and at least one dirty air outlet port through which particulates entrained in air exit the pre-cleaner.

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