Engine mount for watercraft
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasayoshi Nanami
Life of this patent
Estimating the term…
Loading patent…
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasayoshi Nanami
Estimating the term…
A watercraft includes an internal combustion engine mounted such that its crankshaft extends vertically. A gearbox is arranged beneath the engine and includes engine mounts attached directly thereto for mounting the engine to a mounting surface within the engine compartment. Thus, the engine may be mounted compactly arranged in the rear of the watercraft, thus minimizing the overall length of the engine compartment. Additionally, the engine mounts allow the engine to be mounted conveniently within a watercraft in a vertical orientation. The gear box may also include at least a portion of an exhaust conduit extending therethrough. The gear box may be also utilized as a lubricant reservoir for a lubrication system of the engine. Additionally, the exhaust conduit passing through the gear box may include a cooling jacket, thus protecting oil in the gear box from the heat emitted from the exhaust conduit therein.
A watercraft comprising a hull having a passengers' area, an engine compartment positioned rearward from the passengers' area, at least one propulsion device supported by the hull, at least one engine disposed within the engine compartment and configured to drive the propulsion device, the engine having an engine body and a crankshaft joumaled for rotation at least partially within the engine body, and a plurality of engine mounts mounting the engine in the engine compartment such that the crankshaft rotates about a generally vertical axis.
A watercraft comprising a hull having a passengers' area, an engine compartment positioned rearward from the passengers' area, at least one propulsion device supported by the hull, at least one engine disposed within the engine compartment and configured to drive the propulsion device, the engine having an engine body and a crankshaft joumaled for rotation at least partially within the engine body about a generally vertical axis, a gear box having an output shaft extending generally transverse to the generally vertical axis and rearward from the gearbox, the output shaft being driven by the crankshaft of the engine, the engine body being arranged above the gear box, and a plurality of engine mounts connecting the gear box with a mounting surface within the engine compartment, and an exhaust conduit extending at least partially through the gearbox.
A watercraft comprising a hull having a passengers' area, an engine compartment, at least one propulsion device supported by the hull, at least one engine disposed within the engine compartment and configured to drive the propulsion device, the engine having an engine body and a crankshaft journaled for rotation at least partially within the engine body about a generally vertical axis, a gear box having an output shaft extending generally transverse to the generally vertical axis and rearward from the gearbox, the output shaft being driven by the crankshaft of the engine, the engine body being arranged above the gear box, and a lubrication system having a reservoir and being configured to circulate lubricant between the reservoir and at least one lubricant gallery formed within the engine body, the gearbox forming at least part of the lubricant reservoir.
A watercraft comprising a hull having a passengers' area, an engine compartment positioned rearward from the passengers' area, at least one propulsion device supported by the hull, at least one engine configured to drive the propulsion device, the engine having an engine body and a crankshaft journaled for rotation at least partially within the engine body about a generally vertical axis, a gear box having an output shaft extending generally transverse to the generally vertical axis and rearward from the gearbox, the output shaft being driven by the crankshaft of the engine, the engine body being arranged above the gear box, and an exhaust system configured to guide exhaust gases from the engine body to the atmosphere, the exhaust system comprising at least a first exhaust conduit, at least a portion of the first exhaust conduit extending at least partially through the gearbox.
A watercraft comprising a hull having a passengers' area, an engine compartment positioned rearward from the passengers' area, at least one propulsion device supported by the hull, at least one engine configured to drive the propulsion device, the engine having an engine body and a crankshaft journaled for rotation at least partially within the engine body about a generally vertical axis, a gear box having an output shaft extending generally transverse to the generally vertical axis and extending rearward from the gearbox, the output shaft being driven by the crankshaft of the engine, the engine body being arranged above the gear box, and means for guiding exhaust through at least a portion of the gearbox.
Dependencies are inferred from the claim text.