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JPH11147497A |
To move accumulated dust to a portion with weak inlet current and wash it away with a current at the bottom of the ship, enabling an automatic cleaning, by providing a screen device movable in the direction perpendicular to the direction...
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JP2595472Y2 |
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JP2897376B2 |
Several embodiments of jet propelled watercraft including steering rudders pivotally supported by the steering nozzle of the jet propulsion unit for providing a steering affect at low speeds and when coasting. The steering rudder is sele...
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JP2595478Y2 |
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JP2897294B2 |
PURPOSE:To inform properly other ships of the presence of a hull at will by mounting a water jet pipe for jetting water from a nozzle onto the water surface in the stern, a valve for blocking the flow of water and a valve opening and clo...
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JP2894923B2 |
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JPH11505485A |
PCT No. PCT/DE95/00099 Sec. 371 Date Nov. 20, 1995 Sec. 102(e) Date Nov. 20, 1995 PCT Filed Jan. 24, 1995 PCT Pub. No. WO95/20520 PCT Pub. Date Aug. 3, 1995Water jet propulsion unit for watercraft having a pump and stators arranged upstr...
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JP2890663B2 |
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JP2890733B2 |
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JP2890624B2 |
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JPH11124085A |
To prevent sinking or accidents due to a propeller by connecting a suction port formed at the bottom surface of a ship body and a water intake port of a water discharge pump using a water intake hose, and directing a discharge port openi...
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JP2888377B2 |
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JP2889105B2 |
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JPH11115891A |
To automatically clean a screen of a jet water suction port in a water jet propulsion ship. A front edge of a screen 7 which can cover the whole surface of a jet water suction port 6 on the bottom of a water jet propulsion ship is pivote...
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JPH11115893A |
To surely perform fuel supply even under running condition. In a water jet propulsion ship 1, a nozzle deflector 13 arranged on its front end so as to be vertically oscillatable around a horizontal shaft which is extended in a widthwise ...
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JPH11105792A |
To facilitate various work, such as extracting exhaust gas in a exhaust pipe. This device is provided with a water jacket in an exhaust pipe 16 with a catalyst disposed in the upstream of an exhaust gas passage, and a temperature sensor ...
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JPH11105793A |
To lower exhaust heat and a noise level in a ship equipped with an exhaust system in an engine room by forming water boxes in a ship body, introducing outside sea water into the water boxes and mounting the exhaust system in the water bo...
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JPH11105791A |
To prevent a supporting body from being heated abnormally and damaged by feeding hot exhaust gas into a water lock. This exhaust device is provided with a water lock 18 supported by a supporting body consisting of a plastic foaming body ...
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JP2883563B2 |
To decrease frictional resistance of the bottom of a small planing boat through simple constitution, to increase a maximum sip speed, and to improve acceleration performance. A discharge port 4 through which air is discharged in water is...
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JP2883570B2 |
To provide a small planing boat that can turn smoothly with simple constitution while improving the increase of maximum boat speed and accelerat ing performance in a rectilinear running. The boat bottom 13 is provided with a blowoff open...
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JP2882930B2 |
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JP2883564B2 |
To perform discharge of air, exhaust gas, and fluid, such as bilge, from the arbitrary position of the bottom of a planing boat and to perform watertight processing. A discharge duct 5 opened to the part, forming a water surface, of a bo...
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JP2883005B2 |
PURPOSE: To provide a water jet propulsion device having a four-propeller four-shaft structure and suitable for complex steering to approach or leave the pier. CONSTITUTION: A four-propeller four-shaft water jet propelled ship is control...
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JP2880691B2 |
To provide a dry sump type lubrication system to make an engine compact, reduce weight, improve rigidity, enhance reliability on operation, reduce incurring of a mechanical loss through simplification of a piping between an oil tank and ...
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JPH1191688A |
To provide a lubricating oil cooling device for a boat capable of cooling a lubricating oil by a simple construction. A hollow oil sump 20 on the upside of the duct 9 is formed integrated with the duct 9 so that the oil sump 20 is positi...
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JP2592729Y2 |
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JPH1179082A |
To prevent the loading of foreign matters together with water from an intake. In a surface jet propelling boat, a water stream duct 11 via which an intake 11a open to a ship's bottom is communicated with an injection port 11b open to a s...
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JPH1179068A |
To provide such a jet propulsion boat low in a manufacturing cost without increasing the propulsion resistance as is capable of adjusting the trim of a hull during sailing. A jet propulsion machine 2 is set up at a stern bottom and a ste...
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JPH1170894A |
To eliminate the necessity of providing a thrust bearing within a connecting part by providing a reduction gear between a prime motor and the drive shaft of an impeller, and receiving the thrust load generated in the impeller by a thrust...
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JP2865173B2 |
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JPH1162580A |
To appropriately cool oil in simple constitution by interposing an oil cooler on the way of a cooling water discharge pipe, in the cooling device of a marine engine in which water outside a hull is taken in as cooling water and fed to th...
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JPH1149093A |
To set up an engine in a relatively high position, and a jet propeller in a low position, so as to make propulsive efficiency excellent. In a jet propeller 2 introducing water in a flow path from a water introducing port 50 in a ship bot...
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JP2589212Y2 |
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JP2850235B2 |
A jet propulsion craft propelled upon a water surface generally comprises a hull structure comprising a bottom plate and an upper plate, an engine mounted upon the bottom plate at substantially a middle portion of the hull structure as c...
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JPH115592A |
To provide an arranging structure for a fuel pump in a ship whereby the large-sized fuel pump can be rationally arranged and the improvement of durability of the fuel pump can be attained. A ship is formed in a constitution mounting an e...
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JPH115595A |
To enhance the operability of steering by reducing a load received from a flow of water by a deflector. This deflector device for a propulsion unit is constituted such that the direction of water jet is varied by turning operation of a d...
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JP2844340B2 |
A number of embodiments of steering nozzles for jet propulsion watercraft that are configured so as to achieve different steering effects to suit particular watercraft or rider's preferences. The different steering effect is achieved thr...
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JP2588245Y2 |
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JP2843678B2 |
A multi-use watercraft wherein a bay, or bays, is formed in the aft portion for docking a personal watercraft (PWC). The PWC are connected to provide propulsion for the multi-use watercraft when so docked in the bay. The multi-use waterc...
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JP2843711B2 |
PURPOSE: To generate a turning round moment like as a bow thruster by effectively making use of the water jet of a water jet propulsion boat. CONSTITUTION: Conduits 10 are provided on the right and left both gunwale sides in the hull 1 o...
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JP2837539B2 |
PURPOSE:To decrease an influence received to sailing resistance by fluctuating a fuel amount in a fuel tank further to provide largeness of capacity of the fuel tank by arranging the fuel tank so that it is positioned below a power trans...
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JP2839561B2 |
Several embodiments of watercraft hulls propelled by dual jet propulsion units. The jet propulsion units are either received within a common tunnel or a pair of separate tunnels of the watercraft hull and are moveable for servicing and t...
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JPH10329792A |
To attain safe steering unaffected by the change of draft by controlling a straightening vane based on the advance/reverse steering instruction of a ship and the draft of the ship, and automatically controlling advance/reverse. A steerin...
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JP2587127Y2 |
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JPH10324297A |
To use propulsion means alternately, by installing a propulsion means to an attaching member, forming an engaging recessed part on the back surface of a hull, providing a bottom plate on the engaging recessed part, and allowing the attac...
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JP2831203B2 |
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JPH10316092A |
To provide a screen device that can completely eliminate suspended matters from a jet water suction port in a water jet propulsion boat. In a water jet propulsion boat, a jet water suction port 6 provided at the boat bottom is provided w...
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JP2827405B2 |
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JP2828352B2 |
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JP2829114B2 |
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