A jet pump includes a propulsion system including an impeller coupled to a rotatable shaft configured to receive torque from an engine and an exhaust system including an exhaust flow path configured to direct exhaust from the engine to an exterior of the watercraft, wherein the exhaust system is integrated with the propulsion system. In another embodiment, a jet pump includes a propulsion system including a water intake configured to take in water from a body of water, the water intake including an intake grate and an intake base, and an exhaust system including an exhaust flow path configured to direct exhaust from the engine to an exterior of the watercraft, wherein the intake base of the water intake is configured to be coupled to an exterior surface of a hull of the watercraft.

A jet pump includes a propulsion system including an impeller coupled to a rotatable shaft configured to receive torque from an engine and an exhaust system including an exhaust flow path configured to direct exhaust from the engine to an exterior of the watercraft, wherein the exhaust system is integrated with the propulsion system. In another embodiment, a jet pump includes a propulsion system including a water intake configured to take in water from a body of water, the water intake including an intake grate and an intake base, and an exhaust system including an exhaust flow path configured to direct exhaust from the engine to an exterior of the watercraft, wherein the intake base of the water intake is configured to be coupled to an exterior surface of a hull of the watercraft.

A pool cleaning robot that has a water jet electrohydraulic motorized propulsion/pump unit and a waste-collecting body having a battery for powering the unit, the unit and the battery being contained inside a rotary and sealed turret, external to the body of the robot. The robot advantageously has an automatic direction reversing device having a vane secured to the turret with a first end stop and second end stops.

A pool cleaning robot that has a water jet electrohydraulic motorized propulsion/pump unit and a waste-collecting body having a battery for powering the unit, the unit and the battery being contained inside a rotary and sealed turret, external to the body of the robot. The robot advantageously has an automatic direction reversing device having a vane secured to the turret with a first end stop and second end stops.

The invention relates to a water board (2) made of a material that can float on water, having a support area (8), on which a user rests at least partially. To reduce the current forces acting on the user while holding on to and being towed behind a motorized watercraft (24), it is proposed that the water board (2) has, at a front-end area, an attachment segment (22) for the articulation of the water board (2) to the watercraft (24).

A controller receives a signal indicating an operating amount and an operating direction of a steering member. When the operating amount of the steering member is greater than or equal to a steering threshold, the controller causes right and left propulsion devices to generate thrusts oriented in opposite directions in a back-and-forth direction such that a vessel body is turned in a corresponding direction to the operating direction of the steering member.

A controller receives a signal indicating an operating amount and an operating direction of a steering member. When the operating amount of the steering member is greater than or equal to a steering threshold, the controller causes right and left propulsion devices to generate thrusts oriented in opposite directions in a back-and-forth direction such that a vessel body is turned in a corresponding direction to the operating direction of the steering member.

A trim system for a watercraft has a nozzle pivotable about a trim axis, a trim actuator operatively connected to the nozzle, at least one sensor for sensing at least one operating condition of the watercraft, a control unit electronically connected to the at least one sensor for receiving a sensor input signal indicative of the at least one operating condition. In a first trim control mode, the control unit controls the trim actuator to pivot the nozzle about the trim axis within a first range of trim angles. In a second trim control mode, the control unit controls the trim actuator to pivot the nozzle about the trim axis within a second range of trim angles. The first range of trim angles is greater than the second range of trim angles. A watercraft having a trim system and a method of controlling the trim are also disclosed.

A trim system for a watercraft has a nozzle pivotable about a trim axis, a trim actuator operatively connected to the nozzle, at least one sensor for sensing at least one operating condition of the watercraft, a control unit electronically connected to the at least one sensor for receiving a sensor input signal indicative of the at least one operating condition. In a first trim control mode, the control unit controls the trim actuator to pivot the nozzle about the trim axis within a first range of trim angles. In a second trim control mode, the control unit controls the trim actuator to pivot the nozzle about the trim axis within a second range of trim angles. The first range of trim angles is greater than the second range of trim angles. A watercraft having a trim system and a method of controlling the trim are also disclosed.

The invention relates to a propulsion device comprising a platform that is arranged so as to accommodate a passenger and cooperates with a thrust unit comprising a main nozzle, advantageously oriented from the bow to the stern of the device, and two secondary nozzles that are lateral and are positioned essentially at the bow of the propulsion device. The secondary nozzles are mounted so as to be mobile about a transverse axis so as to be moved by actuators controlled by a processing unit that implements a method for controlling the secondary nozzles, thus providing automatic control assistance to the passenger.