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Marine engines and exhaust systems for marine engines

  • US 9,616,987 B1
  • Filed: 10/27/2015
  • Issued: 04/11/2017
  • Est. Priority Date: 11/29/2011
  • Status: Active Grant
First Claim
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1. A marine engine comprising:

  • a cylinder block comprising first and second banks of cylinders that are disposed along a longitudinal axis and extend transversely with respect to each other in a V-shape so as to define a valley; and

    an exhaust manifold that conveys exhaust gases from the marine engine;

    wherein the exhaust manifold comprises a first port that receives the exhaust gases from the first bank of cylinders, a second port that receives exhaust gases from the second bank of cylinders, and a conduit that conveys the exhaust gases from the first and second ports;

    wherein the first and second ports are inwardly oriented towards the valley and the exhaust manifold extends longitudinally out from the valley and then back into the valley.

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