131 results about "Motor boating" patented technology

Devices, apparatus and systems for raising and lowering watercraft such as personal watercraft, jet skis, inflatables from transoms on boats, from bulkheads and from docks, and for raising and lowering other types of vessels. A single actuator such as a fluid operated cylinder and single piston can raise and lower a cradle that supports the personal watercraft. An crank bracket can be fixably attached to a crank shaft, and an arm which supports the cradle can be fixably attached to the crank shaft. The arm can be extendable to different lengths. The cradle can include a self-leveling carriage that uses rollers to roll on a curved surface of the cradle allowing the supported watercraft to remain in a substantially level position thereon. An adjustable swivel mount can also be used to lock the cradle to the arm in a fixed orientation.

The invention relates to a cooling system of a motorboat engine, comprising a water pump assembly, a cooling water channel water chamber of the engine body cylinder body cover, an intake pipe joint and a thermostat seat, a general oil pan, an exhaust pipe and an auspuff flange and a sound attenuating system. The heat of the engine is transformed into the internal energy of cooling water and then discharged out of the motorboat; the cooling water pumped by the water pump assembly is divided into two ways which respectively cool the engine body, the general oil pan and an exhaust system comprising the exhaust pipe and the auspuff flange; the basic flow of the cooling water in the cylinder body cover is that the water flows from the bottom end part of the engine body to the top end part of the engine. By the adoption of the invention, the heat generated in the running process of the engine is transmitted to the cooling water instead of being emitted directly, and finally is discharged out of the motorboat by the cooling water, therefore, the cooling is reliable, the service performance and the safety performance of the motorboat are not affected by the gathering of a great deal of heat in the motorboat, thus conforming with the requirement of the motorboat engine to the cooling system.

The Latest Technology on Waters Zone Rubbish Cleaner according to this invention is using robotic phonton of catamaran type that will carry all automatic rubbish screening eguipment to freely move at sea, reservoir, lake, river mouths and other water zones. This phonton motorboat of catamaran type will become the driving media to create water flow that will pass through the screen bar already installed between the two sides of the phonton motorboat. This phonton motorboat is equipped with all maritime navigation equipment that enables it to move forward as well as backward under speed between 1 knot up to 15 knots. Furthermore, it will cause rubbishes floating on the surface as well as under the waters zone collided, stuck, trapped or caught on the screen bar. The rubbishes stuck on the screen bar will be carried into the conveyor using the rake from the moveable frame mounted on the rail track.

A watercraft with a steer-responsive throttle generates thrust when the steerable propulsion unit is turned beyond a predetermined angular threshold. The turning of the steering wheel beyond the threshold causes the throttle to be opened so that the steerable propulsion unit produces a thrust at least equal to the minimal propulsive force needed to effectively steer the watercraft. A watercraft equipped with a steerresponsive throttle ensures that there is always sufficient thrust for steering the watercraft even when the operator fails to open the throttle manually. This steerresponsive throttle is applicable to single-engine personal watercraft, twin-engine jet boats or motorboats equipped with swivel-mounted outboard motors. In a first embodiment of the steer-responsive throttle, rotation of the steering wheel beyond the angular threshold causes an actuating cable to open the throttle. In a second embodiment, an electronic control system regulates the throttle by calculating the optimal throttle setting based on measurements derived from a speed sensor, a steering angle sensor and, optionally, a throttle position sensor.

The present invention provides a three-V type combined double float motorboat (ship and moving platform) with lifting pendant platform, light self weight, small inactive friction area with water surface, reasonable structure, high power, low energy consumption, rapid speed, good wave-resistance, long service life and smooth running. The invention can be implemented by adopting the following schemes: the motorboat (ship and moving platform) is formed from gliding float portion, platform (cabin body) portion, power portion, operation device and water injection lifting cabin portion and connecting portion of platform (cabin body) and gliding float, and the boat (ship and platform) can be made up by adopting newest synthetic fibre and composite plastics material and special process.

The invention relates to a negative-pressure water discharging system of a power surfboard or a motorboat, in particular to a single-direction negative-pressure water discharging system of an engine compartment for the power surfboard. The single-direction negative-pressure water discharging system comprises an engine compartment water discharging pipe which is used for communicating the engine compartment and a water outlet cavity of a water spray propelling pump, a water inlet of the engine compartment water discharging pipe is formed in a soleplate on the inner tail part of the engine compartment, and a water outlet of the engine compartment water discharging pipe is formed in the water outlet cavity of the water spraying propelling pump and is consistent with the water spraying direction of the water spraying propelling pump; the engine compartment water discharging pipe between the engine compartment and the water spraying propelling pump is provided with an engine compartment water discharging filter and an engine compartment water discharging check valve. By adopting the structure, the back blowing of water is avoided, no accumulated water of the engine compartment is guaranteed, and the application performance is improved.

The invention relates to an engine for a power surfboard or a motorboat, in particular to a single-cylinder two-stroke water-cooled engine. A one-way bearing is fixed to the other end of the crankshaft output end of a crankcase, a speed reduction gear is installed on the one-way bearing, and the speed reduction gear is meshed with a driving gear on the output shaft of a starting motor; an engine air cylinder and a carburetor are arranged on the portions, on the two sides of a crankshaft, of the crankcase, the carburetor is communicated with the air inlet of the crankcase through an air inlet pipe and an air inlet reed valve is arranged between the air inlet pipe and the air inlet of the crankcase; the crankcase and/or the shell of the engine air cylinder are/is provided with support installing holes connected with a fixing frame in an engine compartment, and the shell of the engine air cylinder is provided with a cooling water outlet, a cooling water inlet and an exhaust guide pipe which are all communicated with the inner cavity of the engine air cylinder. Because of the compact structure, the size of the engine is reduced, the total mass is reduced, the rotating speed is increased, and the output power is increased.

The invention provides an electronic control work system of a motorboat with a gasoline engine, comprising an air intake system, a fuel oil supply system, an ignition system as well as an electronic control system; the electronic control system consists of a sensor section, an electronic control unit ECU and an actuator section, wherein the sensor section includes a throttle position sensor and an intake pressure and temperature sensor which are arranged on an intake pipe of an intake system, a camshaft position sensor, a coolant temperature sensor and an engine oil pressure switch signal and crankshaft position sensor which are arranged on the engine as well as a tail gas thermo-switch signal and direction column position sensor and a capsizing switch sensor which are arranged on an exhaust pipe of the engine, and the components of the sensor section are all connected with the ECU; the actuator section consists of an electric fuel pump, an oil sprayer, an idle valve and a fault indicating lamp; the components of the actuator section are all connected with the ECU, and the ECU includes a non-accelerator control program and an interrupting control program; furthermore, the electronic control work system has good power performance, fuel economy and emission performance.

The present invention is a system for automatically controlling the trim of a boat drive thrust on a boat by controlling the trim motor which adjusts the trim angle of the boat drive thrust by pivoting the boat drive thrust relative to the boat. The system includes a control unit operatively coupled to the trim motor. The control unit causes the trim motor to adjust the trim of the boat drive thrust towards the horizontal when the control unit is activated. A trim sensor is provided on the boat drive thrust to measure the trim of the boat drive thrust. The trim sensor is operatively coupled to the control unit and is configured to send an activation signal to the control unit to activate the control unit when the sensor senses that the boat drive thrust is at a predetermined angle from the horizontal. The trim sensor consist of a pendulum movable between first and second electronic contacts, the sensor being configured to send the activation signal when the pendulum engages one of the electronic contacts. The trim sensor further includes a dampening mechanism for slowing the movement of the pendulum.

A powerboat comprising a hull, a plurality of dynamically adjustable hydrofoils positioned below the waterline towards the rear of the hull, and a control system, wherein the cross sectional area of the hull below the waterline decreases towards the rear of the hull, and the control system is configured to adjust the hydrofoils in operation of the powerboat to control the running trim of the powerboat. The powerboat can operate efficiently at over a wide range of Froude numbers, in particular both low (displacement mode) speeds and high (planing mode) speeds.

A trim stabilizer device to be communicated with a transom of a motor boat includes a foil tiltable around its transversal axis and the foil is structurally independent from the transom. An actuator communicates with the foil for tilting. A slide mechanism communicates with the actuator for making a translatory motion thereof relative to the transom. A disc having at least one guide groove guides the slide member; and a connecting member connects the trim stabilizer device to the transom, the connecting member communicates with the disc.

A large recreational powerboat has a forward passenger area, a helm, and a rearward passenger area. A top deck covers the forward passenger area and extends upwardly over the helm. The rearward passenger area is exposed. A large skylight window is formed streamlined with the boat and is imposed into the top deck. The window extends upwardly and forward to the helm, thereby having portions functioning as a windshield for the boat. The windshield and the skylight window transmit abundant natural light to an atrium room that is located between the helm and the forward passenger area cabin rooms. Individuals in the atrium room are shielded from the elements but at the same time can view the outside environment and communicate with people outside of the forward passenger area.

A wave-dividing plate for motor boat has a triangular shape and features that its front part is composed of two plates linked together and its back part has a width same as that of hull bottom and is connected to the hull bottom. Under the floating line it has the triangular push plates at both sides. When a motor boat is running at high speed, the wave is divided by it to form a smooth water way on which the motor boat is running, resulting in high stability and no jump.

The invention discloses a motorboat power engine modified by using a K14B engine and a modification method. The motorboat power engine comprises an engine body, a crank-link mechanism, a valve actuating mechanism, a lubricating mechanism, a fuel supply mechanism, a cooling mechanism, a starting mechanism, an ignition mechanism and a silencer, wherein a distance between the shaft centre of the crank-link mechanism and the bottom of an oil sump, namely, an output shaft centre distance, is shorter than 140mm; and an engine oil filter of the lubricating mechanism faces a part behind flywheels. As the height of the oil sump is reduced, the mounting direction of the engine oil filter is changed, horizontal intake manifolds are adopted to reduce the height of transverse intake manifolds, a water-cooled exhaust pipe is adopted and is in water-cooled flexible connection with the silencer, and speed drive is changed into direct drive, the K14B engine can be well arranged on a motorboat. The motorboat power engine can serve as a floating power device of the motorboat.

The invention relates to an engine for a powered surfboard or a motorboat and discloses a silencer and cooling system integrating double-cylinder two-stroke water-cooled engine. The silencer and cooling system integrating double-cylinder two-stroke water-cooled engine comprises a double-cylinder two-stroke water-cooled engine body, a water cooling silencer and a cooling system, wherein the cooling system comprises a positive pressure cooling water inlet pipe communicated with the positive pressure cavity of a water spray boosting pump, the positive pressure cooling water inlet pipe passes through the shell of the water spray boosting pump, the water inlet of the positive pressure cooling water inlet pipe is opposite to the water flow direction of the water spray boosting pump, the water outlet of the positive pressure cooling water inlet pipe is communicated with the water inlet of a cooling water pipe, a three-way pipe joint is fixed at the water outlet of the cooling water pipe, and the other two ports of the three-way pipe joint are respectively communicated with a cold water inlet pipe and a cooling water inlet in the two-stroke water-cooled engine body. Because the silencer and cooling system integrating double-cylinder two-stroke water-cooled engine is compact in structure, the silencer and cooling system integrating double-cylinder two-stroke water-cooled engine reduces the volume, lowers the weight and improves the rotating speed and output power.

The present invention provides a V-type multistage stepped double-semifloat gliding motorboat (ship) with light self-weight, small inactive friction area with water surface, reasonable structure, lowenergy consumption, good starting and steering performance and high wave-resisting property. The invention can be implemented by adopting the following schemes: the boat is formed from boat body, gliding portion, operation device, power portion and propeller portion, and the boat body is made up by adopting two materials of new type glass fibre reinforced plastics composite material and newest full-plastics composite material, and utilizing new production process and adopting new structure.

The invention relates to an engine for a powered surfboard or a motorboat and discloses a double-cylinder two-stroke water cooled engine. The double-cylinder two-stroke water cooled engine comprises a crankcase, a starting motor of a starting mechanism, a carburetor and two engine cylinders, wherein the two engine cylinders are symmetrically arranged on two sides of the crankcase in a staggering mode, and the central lines of the engine cylinders are overlapped with the central line of the crankcase; the carburetor is located at the top of the crankcase and communicated with the gas inlet of the crankcase through a gas inlet pipeline, and a gas inlet leaf valve is arranged between the gas inlet pipeline and the gas inlet of the crankcase; bracket mounting holes for connecting with a fixed frame in an engine cabin are formed in the crankcase and engine cylinder shells, and the engine cylinder shells are provided with cooling water outlets, cooling water inlets and exhaust guide pipes communicated with the cavities of the engine cylinders. Because the double-cylinder two-stroke water cooled engine is compact in structure, the volume is reduced, the overall weight is lowered, and the rotating speed and output power are improved.