A personal watercraft is disclosed including a flotation portion, a strut extending from the flotation portion, and a motor pod is disposed along the strut with an electric motor operably coupled to a driveshaft. A hydrojet unit is removably attached to the motor pod and includes an inlet portion removably attached to the motor pod and a substantially cylindrical housing. The inlet portion includes a substantially conical motor interface with a shaft through-hole for receiving the driveshaft therein, one or more fins extending outwardly from the conical motor interface, and at least one ring encircling the conical motor interface and connecting to each of the one or more fins for inhibiting objects from passing through the inlet region. The housing defines a fluid flow path to an outlet portion. The hydrojet unit includes an impeller coupled to the driveshaft and a stator disposed within the housing.

A thruster system for a marine vessel includes an electric motor having an output shaft. The thruster system also includes a housing having a first housing opening and a second housing opening, the first housing opening defining a water intake, the second housing opening defining a water discharge. The thruster system further includes a rotatable member operatively coupled to, and driven by, the output shaft of the electric motor, wherein rotation of the rotatable member results in water brought into the housing through the first housing opening and expelled through the second housing opening to generate a thrust force in a direction that is greater than 45 degrees relative to a propeller direction of the marine vessel.

A motor-integrated fluid machine includes a rotating part that rotates around a rotation axis; an outer peripheral part provided at an outer periphery of the rotating part; and an outer peripheral drive motor that provides power from the outer peripheral part to rotate the rotating part. The rotating part includes a rotating support ring around the rotation axis, and blades provided on a center side of the ring and provided side by side in a circumferential direction of the rotation axis. The motor includes a rotor side magnet provided on an outer peripheral side of the ring in a radial direction, and a stator side magnet provided on an inner peripheral side of the outer peripheral part to face the magnet. The motor-integrated fluid machine includes a restraining part which covers and restrains the ring and the magnet from an outside to integrate the ring and the magnet

A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

A motorized watercraft may include an elongated hull extending along a longitudinal central axis (L) and a propulsion system. The propulsion system may include a drive module. The drive module may be mounted to the elongated hull. The drive module may include a motor and a propelling member. The motor may be in driving connection with the propelling member. A bottom surface of the elongated hull may be provided with a first channel and a second channel that respectively extend along the elongated hull on each side of the longitudinal central axis (L).

A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

A personal watercraft is disclosed including a flotation portion, a strut extending from the flotation portion, and a motor pod is disposed along the strut with an electric motor operably coupled to a driveshaft. A hydrojet unit is removably attached to the motor pod and includes an inlet portion removably attached to the motor pod and a substantially cylindrical housing. The inlet portion includes a substantially conical motor interface with a shaft through-hole for receiving the driveshaft therein, one or more fins extending outwardly from the conical motor interface, and at least one ring encircling the conical motor interface and connecting to each of the one or more fins for inhibiting objects from passing through the inlet region. The housing defines a fluid flow path to an outlet portion. The hydrojet unit includes an impeller coupled to the driveshaft and a stator disposed within the housing.

A control system for a jet propelled watercraft comprising a hull with a transom and water jet unit, the control system comprising, as a transom mountable unit, a tiller controlled thrust vectoring nozzle and an actuator controlled jet deflection member for forward direction steering and reversing respectively of the jet propelled watercraft.

A multipurpose maintenance tool for a mechanical assembly. The tool includes a central body and an elongated shank extending in a longitudinal direction from the central body to a lever end. A foreign object removing element has a foreign body engaging surface. The element extends from the central body generally opposite the shank. A fastener engaging formation is formed on the shank, the removing element, and/or the central body. The formation is sized and shaped for engaging a fastener on the assembly to selectively tighten and loosen the fastener. A lateral extension extends from the central body to span an opening in the assembly and engage opposite margins adjacent the opening. As the shank is pivoted about the extension, the removal surface pivots about the lateral extension in a direction corresponding to the angular direction of the shank to dislodge foreign objects from the opening in the assembly.

This present invention relates to an electric fin and a water sports instrument, wherein the electric fin comprises a housing extending along a first direction and having a water inlet cavity; and a propeller and a guide member sequentially arranged in the first direction, wherein the propeller is located in the water inlet cavity, at least part of the guide member is located in the water inlet cavity, the water flow in the water inlet cavity flows out of the guide member; the propeller is provided with a propeller shaft and a plurality of blades, the propeller shaft extends in the first direction, and the plurality of blades are arranged on the propeller shaft in the circumferential direction; the guide member is provided with a guide shaft and a plurality of flow deflectors, the guide shaft extends in the first direction and the plurality of flow deflectors are arranged on the guide shaft in the circumferential direction; the outer contour enclosed by the propeller shaft and the guide shaft shows a projection in a second direction, whose size in a third direction gradually decreases along a fourth direction. The electric fin of the present invention has sufficient power and good guiding performance.