Exhaust manifolds for outboard marine engines
First Claim
1. An outboard marine engine extending from a top side to a bottom side in a vertical direction, from a port side to a starboard side in a transverse direction that is perpendicular to the vertical direction, and from a forward side to an aftward side in a longitudinal direction that is perpendicular to the vertical direction and perpendicular to the transverse direction, the outboard marine engine comprising:
- an internal combustion engine configured to power a propulsor to provide a propulsive thrust in the longitudinal direction;
an exhaust manifold configured to convey exhaust gas from the internal combustion engine, wherein the exhaust manifold comprises an exhaust runner that transversely and longitudinally rearwardly conveys the exhaust gas from the internal combustion engine, an exhaust log that vertically upwardly conveys the exhaust gas from the exhaust runner, and an exhaust elbow that conveys the exhaust gas from the exhaust log vertically upwardly, longitudinally forwardly, and then vertically downwardly.
1 Assignment
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Accused Products
Abstract
An exhaust manifold is for an internal combustion engine on an outboard marine engine that is configured to power a propulsor to provide a thrust in a longitudinal direction. The exhaust manifold comprises an exhaust runner that transversely and longitudinally rearwardly conveys the exhaust gas from the internal combustion engine, an exhaust log that vertically upwardly conveys the exhaust gas from the exhaust runner, and an exhaust elbow that conveys the exhaust gas from the exhaust log vertically upwardly, longitudinally forwardly, and then vertically downwardly.
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Citations
18 Claims
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1. An outboard marine engine extending from a top side to a bottom side in a vertical direction, from a port side to a starboard side in a transverse direction that is perpendicular to the vertical direction, and from a forward side to an aftward side in a longitudinal direction that is perpendicular to the vertical direction and perpendicular to the transverse direction, the outboard marine engine comprising:
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an internal combustion engine configured to power a propulsor to provide a propulsive thrust in the longitudinal direction; an exhaust manifold configured to convey exhaust gas from the internal combustion engine, wherein the exhaust manifold comprises an exhaust runner that transversely and longitudinally rearwardly conveys the exhaust gas from the internal combustion engine, an exhaust log that vertically upwardly conveys the exhaust gas from the exhaust runner, and an exhaust elbow that conveys the exhaust gas from the exhaust log vertically upwardly, longitudinally forwardly, and then vertically downwardly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18)
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17. An exhaust manifold for an internal combustion engine on an outboard marine engine that is configured to power a propulsor to provide a thrust in the longitudinal direction, wherein the outboard marine engine extends from a top side to a bottom side in a vertical direction, from a port side to a starboard side in a transverse direction that is perpendicular to the vertical direction, and from a forward side to an aftward side in a longitudinal direction that is perpendicular to the vertical direction and perpendicular to the transverse direction, the exhaust manifold comprising an exhaust runner that transversely and longitudinally rearwardly conveys the exhaust gas from the internal combustion engine, an exhaust log that vertically upwardly conveys the exhaust gas from the exhaust runner, and an exhaust elbow that conveys the exhaust gas from the exhaust log vertically upwardly, longitudinally forwardly, and then vertically downwardly.
Specification