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JP4299968B2 |
A propulsion system for a water craft having at least one shaft extending rearwardly form the transom of the hull of the craft and a drive system for driving the at least one shaft. A surface piercing propeller is mounted on the at least...
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JP4301748B2 |
The propulsion apparatus for a vessel comprises a main screw (2) and a push type POD propeller (10A) which is provided rearward of the main screw (2). Furthermore, a plurality of grooves (15) which extend along flow directions of a hub v...
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JP4294649B2 |
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JP2009126508A |
To provide a solar panel and an economical energy propulsion outboard motor which can be manufactured at low cost based on a new technological theory.Storage rooms for the outboard motors using economical energy as motive power are provi...
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JP4262570B2 |
A pivoting arrangement for connecting an actuator to the outboard drive portion of a marine propulsion unit and more particularly to an arrangement for strengthening the pivotal connection without significantly increasing its size and by...
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JP2009090961A |
To provide a pod type propeller not requiring a speed reduction device, easily performing miniaturization and capable of making it to low cost.An impeller 14 is mounted to a rotation shaft 12 retained rotatably around a rotation center X...
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JP4253496B2 |
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JP2009513421A |
An apparatus is disclosed for improving safety and hydro-flow thrust from a trolling motor. The apparatus may include a first and second semi-circular portions configured to connect together to substantially enclose a hydro-drive device,...
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JP2009067207A |
To provide an amphibious vehicle capable of enhancing efficiency of motive power as compared with the conventional art.The amphibious vehicle is provided with a fuel battery; a battery for charging/discharging the electric power generate...
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JP4244017B2 |
To provide a straightening structure of a pod propelled vessel capable of eliminating a drop in the water stream speed at the stern and improving the propelling performance and the veering maneuvering performance. A stern frame located a...
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JP4239204B2 |
To provide a pod propeller vessel fitted with a propelling performance enhancing device capable of precluding obstruction in the water influx to a pod propeller by leading smoothly the water flow creeping on the stern bottom undersurface...
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JP4241096B2 |
To provide a stator fin capable of improving the propelling efficiency of a propeller. Setting angles of fins 13a placed on the reverse propeller rotational direction side (the port side if a propeller rotates to the right) are made larg...
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JP4236655B2 |
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JP4221493B2 |
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JP4217185B2 |
To provide a mounting structure and mounting method of a pod propulsion device for improving machining accuracy of a mounting seat surface. The mounting structure on a hull of the pod propulsion device comprising a turning drive part 20 ...
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JP4212100B2 |
An improved hydraulic system for a marine propulsion unit where it is insured that leakage of the shuttle valve will not permit the propulsion unit to move from the desired position by having a series of shuttle piston operated check val...
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JP4203416B2 |
Superconducting electrical machines, for example motors or generators, especially high-temperature superconducting machines, include a rotor equipped with superconductors, especially high-temperature superconductors. They further include...
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JP4206339B2 |
The invention relates to an arrangement for steering a water-craft, which comprises at least one main propulsion device which is arranged to push the water-craft forward or backward, and a number of steering propulsion devices, the pushi...
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JP2008546591A |
A marine vessel control system includes a primary marine propulsory mechanism attached to the vessel and an intelligent vessel control system. Also included is an attitude sensor linked with the intelligent vessel control system. An actu...
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JP2008260445A |
To improve a wake distribution in a lower semicircle by leading a water flow along a hull surface on a lower side immediately before a propeller to the lower semicircle of a rotating surface of the propeller, to enhance propeller efficie...
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JP3145444U |
To provide a propeller guard having reduced resistance of water when traveling on a hull. A surface including a plurality of horizontal bar-shaped members 14 extending in the front-rear direction of a hull 12 and a line extending in a di...
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JP3144731U |
To provide a tidal flat surveying machine capable of freely traveling on a tidal flat and floating even if a body is damaged during traveling on the tidal flat. In a tidal flat survey machine 10 traveling on a tidal flat, a running wheel...
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JP4143033B2 |
Superconducting electrical machines, for example motors or generators, especially high-temperature superconducting machines, include a rotor equipped with superconductors, especially high-temperature superconductors. They further include...
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JP4119970B2 |
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JP4119999B2 |
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JP4116009B2 |
To provide a divided type stern fin structure capable of using a lift force generated at a portion in which second stern fins which are symmetric about right and left and have a cross-sectional wing shape disposed so that a wing upper su...
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JP2008149746A |
To prevent diffusion of stream current generated by a front propeller, and to make it act on a rear propeller efficiently in a contra-rotating propeller.In this contra-rotating propeller device for a ship, a normal rotation propeller 1 i...
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JP2008143489A |
To provide an easily manufacturable duct for a ship, while maintaining performance as an energy-saving device, a manufacturing method of the dust for the ship, and the ship with the duct for the ship for arranging the duct for the ship.T...
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JP3142137U |
The propulsion drive device (P) has two epicyclic gears (14,15) comprising an epicyclic carrier that is formed as a portion of the propeller shaft (17). The propeller shaft axially supported within the underwater casing (11), has a prope...
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JP4095524B2 |
To provide a buttock-associated equipment for a vessel capable of enhancing the propelling performance of its propeller by lessening the associated flow resistance of the propulsive propeller. The buttock-associated equipment of the vess...
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JP4079742B2 |
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JP2008068796A |
To provide a propulsion method and a device for a marine vessel capable of being safely navigated even in shallow draft without using ballast water or while suppressing usage of the ballast water to the minimum.The propulsion device for ...
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JP2008062844A |
To provide a propeller guard, and a ship and an outboard engine equipped with the propeller guard capable of positively preventing the twining of foreign matter with a small propulsion resistance.The ship 10 is equipped with the propelle...
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JP2008044598A |
To provide an energy-saving marine vessel by reducing the center of gravity, providing a restoring force and stability, and enhancing buoyancy.In the structure of a marine vessel, a sloped water column tube 11 is passed through a hull, a...
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JP2008013167A |
To provide a propulsion pod set for propelling a ship comprising a pod (10) having a longitudinal axis (X-X'), and enclosing a motor for actuating a propeller screw situated at the forward end or at the aft end of the pod, a support stru...
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JP2008007081A |
To solve the problem in which, when a ship body is propelled forwardly by the propulsive force generated by singly rotating a screw in water by the power of an engine or the like, the resistance of a hull in water is large, and the effic...
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JP2008001280A |
To provide a marine propulsion apparatus which can eliminate the bearing of a motor.This pot type propulsion apparatus (marine propulsion apparatus) 1 has a driving shaft which rotates, and is equipped with a driving section 5 and a pod ...
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JP2008001357A |
To provide a ship propulsion system capable of obtaining the propulsion output by a compact propulsion device which is redundant for guaranteeing at least the minimum cruising speed and standardized as much as possible in at least a crit...
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JP4021695B2 |
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JP4012967B2 |
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JP4005601B2 |
In a counter rotating propulsion system (CRP), whereby the aft propeller ( 22 ) and the forward propeller ( 6 ) have opposite directions of rotating and the aft and forward propellers are arranged against each other, the forward propelle...
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JP3136506U |
To provide a stern structure for eliminating the stagnation of a flow around the bottom of a stern and reducing the horsepower required at the time of normal speed navigation of a ship. The shape of the stern fin is a substantially equil...
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JP3990155B2 |
The invention relates to a ship propulsion system which is comprised of a ship electrical system (5) and of an electric propulsion system (3, 4) that is supplied with power from said electrical system and which is equipped with a cascade...
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JP3987849B2 |
To provide a structure of a stern which can guide a suitable stream of water to a propeller for propulsion regardless of the depth of draft without changing the shape of a stern hull, and can prevent an increase in resistance generated a...
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JP2007253710A |
To provide a vessel capable of reducing the amount of ballast water in a light load navigating state, in a displacement type vessel navigating on the water. The displacement type vessels 1, 1A, 1B navigating on the water are a multi-axle...
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JP3135512U |
To provide a stern structure which reduces the stagnation of water flow generated near the base of a rudder horn outside the rear basin of a propeller and the bottom of a ship, alleviates resistance to navigation of a ship, and improves ...
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JP3979733B2 |
A service vessel that is designed for navigating both in the open sea and in ice conditions is provided with a demountable propeller nozzle. For an ice-free navigation period the propeller nozzle is mounted around the propulsion propelle...
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JP2007230541A |
To provide a high propulsive efficiency broadened ship wherein propeller efficiency is improved compared to a conventional condition while enlargement of propeller diameter is suppressed. In this broadened ship, B/d in the full loaded co...
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JP2007230547A |
To provide an electric ship propulsion system achieving an allowable vibration level together with a sufficient clearance and propulsion power with respect to a hull. This invention relates to the electric ship propulsion system comprisi...
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JP3975090B2 |
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