| 摘要 |
An outboard motor for a marine vessel application, transmission devices for such an outboard motor, and related methods of making, operating, and modifying attributes of same, are disclosed herein. In at least one embodiment, the motor includes a horizontal-crankshaft engine in an upper portion of the motor, positioned substantially above a trimming axis of the motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to propeller(s). In at least a further embodiment, the motor is made to include a rigid interior assembly formed by the engine, multiple transmission devices, and a further structural component. In further embodiments, the motor includes numerous cooling, exhaust, and/or oil system components, and/or other transmission features. In at least some additional embodiments, a transmission device of the motor is configured to facilitate gear ratio variation and/or includes an integrated oil pump. |
| 主权项 |
1. An outboard motor configured to be mounted on a marine vessel, the outboard motor comprising:
a housing including an upper portion and a lower portion, wherein at least one output shaft extends outward from the lower portion upon which at least one propeller is supported; an engine configured to provide first torque at a first shaft extending outward from the engine, the engine being substantially situated within the housing; a first transmission device that is in communication with the first shaft so as to receive the first torque and configured to cause second torque including at least some of the first torque to be communicated to a first location beneath the engine; at least one additional transmission device configured to receive the second torque and to cause third torque including at least some of the second torque to be at least indirectly communicated to the at least one output shaft, wherein the first transmission device additionally includes:
a plurality of power train components including a plurality of gears;a primary housing structure within which the power train components are supported and also including an access orifice; anda cover structure configured to cover over the access orifice when attached to the primary housing structure,wherein the first transmission device is configured so that, when the cover structure is removed from the primary housing structure, one or more of the power train components are accessible by way of the access orifice, whereby accessing and modification of one or more of the power train components is facilitated so as to facilitate modification of a gear ratio of the first transmission device. |
