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POLLUTION PREVENTING EXHAUST DEVICE

  • US 3,747,347 A
  • Filed: 04/12/1971
  • Issued: 07/24/1973
  • Est. Priority Date: 04/12/1971
  • Status: Expired due to Term
First Claim
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1. In a pollution preventing device for engines, a closed tubular casing having a closed inlet end and a closed outlet end, said inlet end having an inlet connected to the exhaust of the engine, said outlet end having an outlet, a plurality of spaced baffles along said casing between said ends having their edges secured alternately to opposite wall portions of said casing and having unsecured edges spaced from the side of said casing thereby to provide passages alternately on opposite sides of said casing for changing the direction of flow of fumes several times between said inset and outlet end, The spacing between the first baffle and said inlet end being the largest, the spacing between the intermediate baffles being about equal and substantially less than the spacing of the first baffle from the inlet end, the secured edges of each baffle being imperforate thereby to limit the passage of fumes to the space at the unsecured edge of each baffle, said baffles being parallel and being inclined lengthwise in said casing in the same direction, said first baffle being inclined with its unsecured edge toward said inlet end, and said unsecured edges of the baffles overlapping the positions of the unsecured edges of the adjacent alternate baffles, a closed space along the lowest portion of said casing for collecting escaped liquid, said casing having apertures in said lower portion between said baffles for the escape of precipitated liquid particles into said closed space.

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