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JP2000326894A |
To enhance stability and astern power by abolishing a reservoir. This propulsion device has a normal/reverse rotation converter 16 placed between the driveshaft 14 of an impeller 7 and the output shaft 15 of a driving engine 3 and provid...
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JP2000326893A |
To provide an external electric drive type propulsion device for a semisubmersible catamaran (swath) having an excellent efficiency and an excellent convenience for repair and replacement. A semisubmersible catamaran 10 has an upper stru...
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JP3112151B2 |
To enable a ship to be efficiently sailed without being affected by the load capacity, by providing a selector valve on a discharging pipe of a pump casing, connecting upper and lower injection pipes to the selector valve, and opening th...
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JP2000313398A |
To simplify the operation necessary for ship maneuvering by setting the throttle opening, shift position, steering direction and steering angle according to the operating position of a control stick on the basis of the signal showing the...
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JP3107192B2 |
To store an operation mechanism in an operation shaft and limit a moving member in the water to the minimum by forming a steering shaft into a hollow shape, fitting the operation tool of a current change plate provided at a rudder sectio...
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JP3107422B2 |
PURPOSE: To prevent a drain plug from detriorating of external appearance due to the stain around the drain plug and enable the drain plug to be easily operated. CONSTITUTION: A stern bottom is formed with a recess 10 communicating to th...
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JP2000302093A |
To provide a jet propelling drive device of a good efficiency for a vessel. A vessel and a jet propelling device for it attached in the cantilever form to a stern beam 14 of vessel 10 has a water tunnel or cavity 16 formed in a single pi...
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JP2000280986A |
To provide a technology which can obtain a brake device to give a braking force to a small size surface boat. This brake device of surface boat consists of sponsons 31 and 32 installed disconnectable to a hull 11; the left side and the r...
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JP2000282899A |
To position an exhaust control valve and the pulley of a servo motor before installing the servo motor and the exhaust control valve, without using a jig and the like which are originally unnecessary. A water jacket is provided in the ex...
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JP2000272584A |
To provide a water jet propelling device capable of preventing the occurrence of cavitation and providing a strong propelling force. The axial flow impeller 7 of a closed type is provided in the front state of a suction casing 5, a helic...
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JP3094612B2 |
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JP2000247288A |
To provide a water jet type ship eliminating uneven pressure distribu tion generated at an inlet part of an intake for sucking water. A lip member 3 with lip shape formed at the outer peripheral surface is rotatably disposed at a ship bo...
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JP2000247295A |
To provide a water jet type ship capable of eliminating uneven pressure distribution generated at an inlet part of an intake for sucking water. A roller member 12 rotated by a rotatory-driving device is disposed at a lip part 3 downstrea...
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JP3079084B2 |
To make a switch box compact. A front main body 41 and a rear main body 42 longitudinally split across the vertical plane passing through a handle bar 6 are fastened together by a bolt 43 to form a switch box 4, and a control button 5 is...
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JP2000227017A |
To provide a jet propulsion boat having the narrow intervals of a right and left pair of foot steps and excellent maneuverability, by laying out an oil tank and an oil filter so that narrow engine width can be maintained, when a drysump ...
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JP2000211587A |
To resolve problems including damage to screws and buckles of shafts all by impact by eliminating screws exposed to a stern and shafts passed through a hull from boat propulsion devices. An externally mounted electric propulsion module 1...
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JP2000211582A |
To provide a propulsion device for axisymmetric vehicles that is easy to assemble, maintain and replace and needs no shaft passing through the outer hull of vehicles. A plurality of propulsion modules 14 are fixed to the rear of a vehicl...
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JP2000211579A |
To enable meters to be easily viewed and also make them less apt to be exposed to seawater by forming a recess in a deck member positioned at a front part of a boat body, installing the meters in the recess, and covering the recess part ...
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JP3066648B2 |
A number of embodiments of exhaust systems for marine watercraft, particularly, those of the jet propelled type. The exhaust systems all include an exhaust pipe which terminates in a discharge opening formed in a lower surface of the hul...
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JP3064078B2 |
PURPOSE: To provide a water-jet introduction type steering cylinder apparatus for ship which is so arranged as to cause a neutral condition to be stably maintained and minimize the navigation resistance. CONSTITUTION: A steering cylinder...
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JP3062191B1 |
[wrap up] [Task] The conventional vertical water jet propulsion machine has inherently low performance due to its structure. A vertical water jet propulsion machine W that sucks water from the intake port 9 in the center of the casing 3 ...
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JP3058358B2 |
A water jet propelled boat is equipped with a water intake opening, a water jet outlet, and with a mixed flow type impeller, where the above mentioned water intake opening and the above mentioned water jet outlet are connected by a water...
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JP3059164B1 |
[wrap up] [Task] It was difficult to remove marine products adhering to the inside of the casing. In the vertical water jet propulsion machine W that sucks water from the intake port 9 in the center of the casing 3 and discharges a jet f...
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JP2000168687A |
To provide an efficient pump jet by arranging a rotor so as to operate by water without turbulence.A marine pump jet has a rotor 132 arranged in the upstream and in the forward of a rotor drive mechanism. A lower unit 102 of a towing pum...
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JP2000168683A |
To enable super high speed sailing and reduce fuel consumption.This ship comprises a propeller jet device S paddling water by a screw propeller 4 arranged in the inside of a pipe 3 from a bow over to a stern in a lower part of a ship bod...
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JP3053195B2 |
A number of embodiments and accessories for a watercraft that is comprised of a main hull that defines a berthing area to receive a small self-propelled watercraft. The main watercraft hull has no propulsion device of its own and is adap...
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JP3050244B2 |
PURPOSE: To improve in a muffler and to reduce complexity in an engine mounting portion for a small skid boat. CONSTITUTION: In a small skid boat, which comprising a water jet propulsion engine, in the hull thereof, having an engine port...
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JP3045754B2 |
A thrust generator which has a structure wherein a helical thrust duct (2) is rotatably supported inside a hollow portion of a superconductive magnet (1) of a solenoid coil type, positive and negative electrodes (8 and 9) are so bonded t...
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JP2000145472A |
To locate a fuel pump without increasing the overall length of an engine. A drive pulley 51 mounted on an extended distal end 39a extending forwardly from a crank shaft 37 of an engine 21 is connected to a driven pulley 52 mounted on the...
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JP2000142573A |
To remove the refuse from a jet inlet opening without any access of an operator overboard a ship. A jet propulsion device 40 for marine use such as a ship is provided with a power device to rotate a drive shaft 44. A gear device has a pi...
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JP3041282B1 |
[wrap up] [Task] The performance and efficiency of the propulsion machine deteriorated because the discharged flowing water leaked from the gap between the outer circumference of the impeller and the inner circumference of the impeller l...
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JP2000128071A |
To facilitate work on securing a coupling cover, by forming, at the front of the coupling cover, insertion portions temporarily secured to concave steps of grommets on the engine-side and, at the rear thereof, a bolt securing portion to ...
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JP2000128082A |
To provide a water jet propeller which inhibits generation of cavitation as much as possible when starting or sailing at a low vessel speed and prevents separation of the flow along the intake inner wall when sailing at the high speed to...
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JP2000128084A |
To provide an outboard motor which facilitates fast sailing condition, eliminates the stall while sailing, and causes little energy loss, for the improvement to enhance the dynamic pressure recovery and flow adjustment effect of the sail...
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JP2000128081A |
To ensure the sealability of joint surfaces of both members by forming a sealant housing concave portion which seals a formless sealant leaving marginal joint surfaces, on a joint surface of a pump bracket joined to a vertical wall surfa...
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JP3037761B2 |
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JP2000118495A |
To jet a water jet efficiently by improving a suction port of jet water.In a water jet propulsion ship, two suction ports 5 of jet water are arranged in juxtaposition, and the suction ducts 6 thereof are confluent at the inlet part of a ...
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JP2000120589A |
To provide an impeller for a water jet pump, which can improve the pump efficiency and which is easily machinable and which is structured capably of lowering the manufacturing cost.In the impeller, a propeller shaft is installed on the t...
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JP2000504289A |
PCT No. PCT/IT97/00279 Sec. 371 Date Jul. 2, 1998 Sec. 102(e) Date Jul. 2, 1998 PCT Filed Nov. 14, 1997 PCT Pub. No. WO98/22337 PCT Pub. Date May 28, 1998A hydraulic system for the control of boats, ships and crafts in general that compr...
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JP2000072087A |
To provide a sea chest structure in a ship which is capable of eliminating a non-uniform pressure distribution generated at an inlet part to suck water. In a sea chest structure which is formed in a hull bottom part 1 and suck water for ...
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JP3016078B1 |
[wrap up] [Task] Provided is a low-cost water-injection type marine propulsion device that can be retrofitted to a conventional hull, has a wide range of applications, and has a simple structure. The propulsion device A is attached to th...
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JP3016079B1 |
[wrap up] [Task] Provided is a low-cost water-injection type marine propulsion device that can be retrofitted to a conventional hull, has a wide range of applications, and has a simple structure. A guide hole Ha that vertically penetrate...
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JP2000062690A |
To reduce the number of parts and to easily secure an arranging space by fixing a reverse bucket to the position for covering an opening part of a nozzle deflector and also to the upper position for releasing it. A reverse bucket 50 is s...
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JP3014651B2 |
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JP2000053085A |
To simplify mechanism and to reduce cost by providing a water jet nozzle part provided at the stern, with a nozzle plate adjustable by moving in the cross direction of the nozzle, and providing the nozzle plate with a plurality of inject...
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JP2000053092A |
To perform an operation by an entire body, and to provide a better planing feeling. A small planing boat 1 is constructed in such a manner that an engine is disposed inside a boat body 2, a water jet propeller driven by the engine is dis...
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JP2000053089A |
To dispose a propeller shaft and an exhaust pipe in low positions, to reduce the gravity center of a ship body and to reduce the size of the ship body in a height direction. In a small ship propelled by transmitting the motive force of a...
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JP2000043792A |
To limit the full height of an engine and to lower the center of gravity of a small boat when a 4-cycle engine is mounted on the small boat. In a small boat propelled by transmitting the motive force of a 4-cycle engine 2 to a water jet ...
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JP2000033873A |
To reduce the hull resistance by restricting the stem from being uplifted during high speed sailing to sufficiently maintain the draft difference between the inside and the outside of the air cushion chamber, and to further reduce the hu...
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JP2999191B1 |
[wrap up] [Task] In the vertical water jet propulsion machine, the work of adjusting the tooth contact between the bevel pinion and the bevel wheel was complicated and took a long time. A vertical water jet propulsion machine having a be...
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