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Combined noise suppressing and air flow guide enclosure for engines

  • US 4,071,009 A
  • Filed: 06/28/1976
  • Issued: 01/31/1978
  • Est. Priority Date: 06/28/1976
  • Status: Expired due to Term
First Claim
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1. A combined noise suppressing and airflow guide enclosure mounted on a vehicle in substantial surrounding relationship about an engine thereof, an inlet having a radiator disposed therein forwardly of said engine and a fan rotatably mounted between said engine and said radiator for drawing air into said enclosure, said enclosure comprisingouter enclosure means substantially surrounding said engine comprising a horizontally disposed hood positioned over a top of said engine and a pair of vertically disposed sidewalls positioned on either side of said engine, each of said sidewalls comprising a door movably mounted on said enclosure for exposing said engine directly and having a layer of sound-absorbing material secured internally thereon,inner enclosure means disposed in substantial isolated relationship within said outer enclosure means comprising a horizontally disposed upper wall comprising a layer of sound-absorbing material and positioned in vertically spaced relationship between said hood and the top of said engine to define a first airflow passage between said hood and said upper wall and to further define, along with said sidewalls, a second airflow passage about the top and sides of said engine andairflow guide means secured internally on each of said doors to define a passage therebetween communicating air from said radiator to said second airflow passage.

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