An outboard motor for a marine vessel application, and related methods of making and operating same, are disclosed herein. In at least one embodiment, the outboard motor includes a horizontal-crankshaft engine in an upper portion of the outboard motor, positioned substantially positioned above a trimming axis of the outboard motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to one or more propellers at a lower portion of the outboard motor. In at least a further embodiment, the outboard 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 outboard motor includes numerous cooling, exhaust, and/or oil system components, as well as other transmission features.

An outboard motor for a marine vessel application, and related methods of making and operating same, are disclosed herein. In at least one embodiment, the outboard motor includes a horizontal-crankshaft engine in an upper portion of the outboard motor, positioned substantially positioned above a trimming axis of the outboard motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to one or more propellers at a lower portion of the outboard motor. In at least a further embodiment, the outboard 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 outboard motor includes numerous cooling, exhaust, and/or oil system components, as well as other transmission features.

A system comprises an elastic mount configured to support a propulsion device with respect to a marine vessel. The elastic mount contains an electromagnetic fluid. An electromagnet is configured so that increasing an amount of electricity applied to the electromagnet increases the shear strength of the electromagnetic fluid in the elastic mount and thereby decreases elasticity of the elastic mount, and so that decreasing the amount of electricity applied to the electromagnet decreases the shear strength of the electromagnetic fluid in the elastic mount and thereby increases the elasticity of the elastic mount. A controller automatically adapts the amount of electricity applied to the electromagnet during translation of the marine vessel so as to reduce the likelihood that the propulsion device impacts an adjacent structure on the marine.

A stern drive is for propelling a marine vessel in water. The stern drive has an upper drive unit with a lower mounting surface; a lower gearcase coupled to the lower mounting surface and a trailing end surface that is angled relative to the lower mounting surface; and a propeller shaft extending forwardly from the lower gearcase and being configured to rotate a propeller for pulling the marine vessel in the water. The upper drive unit and the lower gearcase are configured such that when a forward side of the lower gearcase impacts an underwater obstruction, the lower gearcase is caused to pivot relative to the upper drive unit until the trailing end surface impacts the lower mounting surface, which thereby causes the lower gearcase to completely uncouple from the upper drive unit.

The present disclosure relates to a drive arrangement for propelling a boat, for example a kayak, having an electric drive motor with a shaft, a receiving device for receiving the shaft and a holder for holding the receiving device on the boat. In some embodiments, the receiving device is pivotable for pivoting the electric drive motor between an operating position and a tilt position relative to the holder. A switchable fixing device is provided for fixing the receiving device in the operating position. The fixing device has an overload protection for disconnecting the fixing in the operating position when a predetermined pivot force in the direction of the tilt position is exceeded.

The present disclosure relates to a drive arrangement for propelling a boat, for example a kayak, having an electric drive motor with a shaft, a receiving device for receiving the shaft and a holder for holding the receiving device on the boat. In some embodiments, the receiving device is pivotable for pivoting the electric drive motor between an operating position and a tilt position relative to the holder. A switchable fixing device is provided for fixing the receiving device in the operating position. The fixing device has an overload protection for disconnecting the fixing in the operating position when a predetermined pivot force in the direction of the tilt position is exceeded.

A device including an outboard motor including a jet outlet portion, a stabilizer plate, and a rudder, where the stabilizer plate includes a first end portion and a second end portion, where the first end portion is proximal to the jet outlet portion, where the second end portion is distal to the jet outlet portion, where the rudder extends from the stabilizer plate between the first end portion and the second end portion.

A device including an outboard motor including a jet outlet portion, a stabilizer plate, and a rudder, where the stabilizer plate includes a first end portion and a second end portion, where the first end portion is proximal to the jet outlet portion, where the second end portion is distal to the jet outlet portion, where the rudder extends from the stabilizer plate between the first end portion and the second end portion.

A pump device includes a first pump that includes a first discharge portion and a second discharge portion, a first flow path that connects the first discharge portion and a first chamber of a cylinder, a second flow path that connects the second discharge portion and a second chamber of the cylinder, a second pump that includes a third discharge portion and a fourth discharge portion, a third flow path that connects the third discharge portion and the first chamber, a fourth flow path that connects the fourth discharge portion and the second chamber, a branch path that branches from the third flow path and reaches the tank, and an opening valve that opens the branch path, the opening valve being disposed in the branch path so as to open the branch path when a pressure in the second chamber is higher than a predetermined pressure.

A pump device includes a first pump that includes a first discharge portion and a second discharge portion, a first flow path that connects the first discharge portion and a first chamber of a cylinder, a second flow path that connects the second discharge portion and a second chamber of the cylinder, a second pump that includes a third discharge portion and a fourth discharge portion, a third flow path that connects the third discharge portion and the first chamber, a fourth flow path that connects the fourth discharge portion and the second chamber, a branch path that branches from the third flow path and reaches the tank, and an opening valve that opens the branch path, the opening valve being disposed in the branch path so as to open the branch path when a pressure in the second chamber is higher than a predetermined pressure.