| 20090156070 | MARINE EXHAUST MANIFOLD - A marine exhaust manifold comprises a collector for receiving exhaust gases from an engine, at least two exhaust runners for conducting exhaust gas from said engine to the collector, and a cooling jacket to cool said collector and exhaust runners. In one aspect at least one exhaust runner is adapted to expel exhaust gas into the collector so that the expelled exhaust gas is forced across the gas outlet end of at least one other exhaust runner, thereby creating a pressure drop within said at least one other exhaust runner. In another aspect there are at least three exhaust runners and the gas outlet ends of the exhaust runners are provided in the collector in a substantially single plane, which is substantially parallel to the direction of expulsion of the exhaust gas into the collector. In another aspect the manifold is provided with a sacrificially corroding element, such as a sacrificial anode. | 06-18-2009 |
