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Motorcycle cooling system

  • US 4,445,587 A
  • Filed: 12/16/1981
  • Issued: 05/01/1984
  • Est. Priority Date: 12/16/1981
  • Status: Expired due to Fees
First Claim
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1. A motorcycle including front and rear forks for mounting front and rear wheels respectively, a frame interconnecting said forks, a liquid cooled internal combustion engine and a radiator for said engine supporting on said frame and between said forks, the improvement comprising an air transport system for said radiator including:

  • means defining first and second air passages each having a forwardly facing inlet opening disposed respectively on the opposite sides of said front fork,each air passage means extending rearwardly from its inlet,means defining a plenum chamber disposed adjacent said radiator,said air passages having an outlet opening into said plenum chamber,the cross sectional area of each passage increasing gradually between its inlet and outlet ends,an exhaust duct connected to said plenum chamber,said radiator being disposed between said plenum chamber and said exhaust duct and creating a substantial resistance to air flow therebetween.

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