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JPS60189497U |
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JPS60188693U |
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JPS6055351B2 |
A protective system is provided for water-jet propulsion systems in which water entering through an intake port is discharged in a jet by a pump. Unloading and overspeed of the pump prime mover may occur if the intake comes out of the wa...
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JPS6039353Y2 |
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JPS60226392A |
PURPOSE: To protect a propulsion apparatus and suppress the reduction of the propulsion efficiency by accommodating and arranging all the propulsion apparatuses such as screw and rudder inside the ship bottom wall. CONSTITUTION: A screw ...
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JPS60167810U |
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JPS60155697U |
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JPS60131490U |
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JPS60157994A |
PURPOSE: To reduce the length of an exhaust pipe by a large margin by forming the inside of an impeller shaft into hollow state and allowing the communication between the hollow part and an engine exhaust port through an exhaust pipe and...
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JPS6033715B2 |
PURPOSE:To reduce bow waves and stern waves by water sucking action of propellers, by providing the properllers in conduits extending from a bow section to a stern section. CONSTITUTION:Water suction holes 3, 4 and water discharge holes ...
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JPS60142099A |
PURPOSE: To aim at enhancing the efficiency of thrust, by providing a plurality of high pressure liquid jet ports and a plurality of high pressure gas jet ports in parallel with each other in the connecting section between a suction pipe...
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JPS6030599B2 |
A water jet propulsion system for watercraft having an impeller, especially a conical oblique flow impeller with an increased outer diameter in going toward the downstream side. The impeller is secured to a transmission shaft which is jo...
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JPS6098599U |
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JPS60124593A |
PURPOSE: To reduce energy loss, noise and vibration by providing a flexible portion at an outside wall of a conjoint portion at which a fluid conduit and a circulating portion filled with magneticable fluid are put one upon another and d...
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JPS6092697U |
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JPS6092696U |
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JPS6092695U |
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JPS6087899U |
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JPS6078698U |
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JPS6060397U |
In a semi-axial flow pump used in a small-sized boat which is intended to travel in shallow water, a truncated-conical liner of wear-resistant material is force fitted into the inner surface of a passage portion within which an impeller ...
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JPS6050098A |
PURPOSE: To propel a ship at high speed by a method wherein the reaction developed by jetting the spouting exhaust gas of a gas turbine in the water under pressure is utilized. CONSTITUTION: Fuel flows from an oil storage tank 2 through ...
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JPS6029394A |
PURPOSE: To allow powerful injection of water even in water for improved cleaning operation or others by the water jet by injecting water from the top end of an inner pipe and enclosing the water jet by a layer of air injected from an in...
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JPS604879Y2 |
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JPS6018898U |
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JPS6018896U |
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JPS605996U |
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JPS605997U |
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JPS601698U |
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JPS59230887A |
PURPOSE: To recover floating substances by the suction force of a pump as well as enable a recovery ship to be propelled by the discharge force of the pump by a method in which the suction port of the pump provided to the hull is positio...
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JPS59227587A |
PURPOSE: To efficiently collect suspended matter on the sea, by providing such an arrangement that a dust collecting basket suspended by parallel links is disposed in a recess in the bow, and channels opened at one end to the recess is l...
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JPS5951476B2 |
An internal thrust reverser duct is utilized in a waterjet pump design which comprises a center pintle body concentric with an outer housing forming an annular passage thereby downstream of an inducer. To divert the flow upstream of the ...
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JPS5941197Y2 |
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JPS5945552B2 |
PURPOSE:To perform a variety of experiments precisely by arranging a high-speed jet stream channel equipped with top wall, pump water taking-in flow passage connected to the water intake port on the top wall described above, and the wate...
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JPS5941436B2 |
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JPS5931519Y2 |
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JPS5931520Y2 |
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JPS59145691A |
A jet propelled boat whose propulsion unit is very compact vertically and in which entrance of the water into the exhaust system is effectively prevented. The jet propulsion unit includes an engine having a vertical output shaft, an impe...
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JPS59134094A |
PURPOSE: To provide high efficiency of propulsion and high speed of a ship by applying the flapping mechanism of a bee to the propulsion mechanism of the ship. CONSTITUTION: Two blades are at first closed at (a) and then rotated about th...
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JPS5924638Y2 |
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JPS5923680Y2 |
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JPS59114195A |
PURPOSE: To produce a jet stream in a cylinder body more certainly, by interposing a receiving plate between exploded gas and water. CONSTITUTION: Thrust force is generated on the body of a ship by a method wherein exploded gas due to ex...
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JPS5995000U |
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JPS5985799U |
A movable ramp, forming part of the inlet flow channel of a water jet propulsion system, is adjustable to provide variable inlet area for various speed and propulsion requirements. In this flush or semi-flush type inlet, the lower lip is...
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JPS5999100A |
PURPOSE: To obtain the thrust generating device having a high operating efficiency by a method wherein a suction tube and a transporting tube, having a diameter larger than the suction tube, are connected coaxially and communicated with ...
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JPS5992294A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5992282A |
PURPOSE: To enable to shift rapidly from a suspension state to a surfacing and sailing states, by a method wherein large lifting force is generated at a hydrofoil at the starting time of sailing by accelerating a fluid sucked in through ...
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JPS5978191U |
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JPS5921838B2 |
An improved boat thruster including a diverter valve having an inlet connected to a water pump and a pair of outlets extending to either side of the boat. Each outlet includes a primary nozzle and a deflector movable to a first position ...
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JPS5962100U |
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JPS5970290A |
PURPOSE: To make uniform distribution of wake flowing into a propeller and efficiently reduce a propeller vibrating force, by discharging sea water out of a wake acceleration discharge port formed at a stern portion under a sea level and...
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