A wheel-legged amphibious mobile robot with a variable attack angle, which belongs to the technical field of robot structure technology. The robot includes three parts: motion unit, body trunk and power unit. As a key structure, the motion unit mainly includes a moving mechanism, a wheel assembly, a telescopic mechanism and a transmission device. The robot drives the telescopic mechanism to reciprocate linearly through a gear and rack set, and pushes “legs” to expand and retract, so as to realize a mutual switching between a wheeled mode and a gait mode. Under transmission of bevel gear set, the blades can rotate at any same angle at the same time, to change the attack angle and realize the steering. The robot provided by the present disclosure can effectively adapt to a complex and harsh amphibious environment, and meet a series of operation requirements such as rapid movement, obstacle climbing, underwater steering.

A coaxial contra-rotating circumferential thruster includes: an input end, a one-way commutator, a two-way deflector, a steering support and two output ends. The input end is connected to a power device. The one-way commutator converts one rotation into two rotations having the same rotation speed and opposite rotation directions. The two-way deflector respectively indirectly connects two shafts of a contra-rotating sleeve shaft to two output shafts thereof by means of two bevel gear pair. Two unidirectional deflecting torques respectively generated by the two bevel gear pairs have the same magnitude and opposite directions. By transferring by means of a bracket or an output sleeve shaft, the two unidirectional deflecting torques cancel each other. The two output ends are respectively connected to two propellers (or rotors). A turnaround control device controls the steering support to be turned around, the control torque required for co-rotating and contra-rotating is the same.

An operation device in a ship propulsion system including a ship propulsion machine, ship-mounted equipment, and a power supply, the operation device including a single push button switch and an operation processor performing processing. The operation processor detects a pressing mode of the push button switch when the push button switch is pressed while the ship-mounted equipment and the power supply are disconnected and the power source is stopped, performs processing of connecting the ship-mounted equipment and the power supply and starting the power source when the detected pressing mode is a first mode, and performs processing of connecting the ship-mounted equipment and the power supply while maintaining the power source in a stopped state when the detected pressing mode is a second mode.

An operation device in a ship propulsion system including a ship propulsion machine, ship-mounted equipment, and a power supply, the operation device including a single push button switch and an operation processor performing processing. The operation processor detects a pressing mode of the push button switch when the push button switch is pressed while the ship-mounted equipment and the power supply are disconnected and the power source is stopped, performs processing of connecting the ship-mounted equipment and the power supply and starting the power source when the detected pressing mode is a first mode, and performs processing of connecting the ship-mounted equipment and the power supply while maintaining the power source in a stopped state when the detected pressing mode is a second mode.

The present invention relates to a gearbox system for mounting on a waterborne vessel with a hydrofoil, the gearbox system comprising:

a housing having an interior surface defining an interior space of defined dimension;
a gearing system comprising a propeller shaft engagement portion, the gearing system located within the interior of the housing; and
an engine located within the interior space of the housing and in mechanical communication with the gear box;
wherein the housing is water-tight and wherein the gearing system and engine are in thermal contact with the interior surface of the housing.

Further provided is a hydrofoil system including such a gearbox system and a waterborne vessel including such a hydrofoil system.

A powertrain for a marine vessel, comprising an internal combustion engine, a transmission, a first drive unit having a first propeller and a second drive unit having a second propeller, a first electric motor and a second electric motor, where the internal combustion engine is drivingly connected to the first drive unit and the second drive unit through the transmission, that the first electric motor is drivingly connected directly to the first drive unit and that the second electric motor is drivingly connected directly to the second drive unit.

A powertrain for a marine vessel, comprising an internal combustion engine, a transmission, a first drive unit having a first propeller and a second drive unit having a second propeller, a first electric motor and a second electric motor, where the internal combustion engine is drivingly connected to the first drive unit and the second drive unit through the transmission, that the first electric motor is drivingly connected directly to the first drive unit and that the second electric motor is drivingly connected directly to the second drive unit.

A wheel-legged amphibious mobile robot with a variable attack angle, which belongs to the technical field of robot structure technology. The robot includes three parts: motion unit, body trunk and power unit. As a key structure, the motion unit mainly includes a moving mechanism, a wheel assembly, a telescopic mechanism and a transmission device. The robot drives the telescopic mechanism to reciprocate linearly through a gear and rack set, and pushes “legs” to expand and retract, so as to realize a mutual switching between a wheeled mode and a gait mode. Under transmission of bevel gear set, the blades can rotate at any same angle at the same time, to change the attack angle and realize the steering. The robot provided by the present disclosure can effectively adapt to a complex and harsh amphibious environment, and meet a series of operation requirements such as rapid movement, obstacle climbing, underwater steering.

A wheel-legged amphibious mobile robot with a variable attack angle, which belongs to the technical field of robot structure technology. The robot includes three parts: motion unit, body trunk and power unit. As a key structure, the motion unit mainly includes a moving mechanism, a wheel assembly, a telescopic mechanism and a transmission device. The robot drives the telescopic mechanism to reciprocate linearly through a gear and rack set, and pushes “legs” to expand and retract, so as to realize a mutual switching between a wheeled mode and a gait mode. Under transmission of bevel gear set, the blades can rotate at any same angle at the same time, to change the attack angle and realize the steering. The robot provided by the present disclosure can effectively adapt to a complex and harsh amphibious environment, and meet a series of operation requirements such as rapid movement, obstacle climbing, underwater steering.

Control system for controlling operations of a marine vessel having a first engine and a second engine is provided. Parity switches are operable to start/stop first and second engine. Each parity switch is actuated for first time to activate remote start/stop control of respective engine. Each switch is actuated for second time to switch respective engine to ON or OFF state. Operator console is communicatively coupled to parity switches to receive first and/or second user inputs. Propulsion control unit is communicably coupled to operator console via network communication channel, first engine control unit of first engine and second engine control unit of second engine. Propulsion control unit receives operational parameters for engines from engine control units and receives first and second user inputs from operator console. Propulsion control unit transmits engine operating signals for operating respective engines in response to first and/or second user input and based on operational parameters.