JPH0713696U - Water injection type ship propulsion device - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to operate a ship at high speed and stably by using a water jet propulsion device. [Composition] The present ship propulsion device has an intake port (1) for taking in water having a velocity force and a drain port (3), and an engine (7) for further pressurizing via a water intake conduit (2). A pressure vessel (9) for accumulating high-pressure water, and further introducing a high-pressure water flow to a propulsion conduit (4) to control the speed by a flow control valve. (1
0) to control the high-pressure water by the propulsion jet nozzle (1
1) Or, it is composed of the above-mentioned various devices that obtain a propulsion force and a braking force by injecting from the braking injection nozzle (12).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water jet type ship propulsion device capable of high speed operation.

[0002]

[Prior art]

 Conventionally, as a ship propulsion device, a screw was rotated to obtain propulsive force. It is known that the propulsion direction uses a rudder.

[0003]

[Problems to be solved by the device]

 In the prior art, there is a problem that the upper limit rotation speed of the screw is limited due to vibration, efficiency, etc., and the speed of the ship is limited.

Further, when the speed of the ship is increased, there is a problem that the bow receives resistance to water, which causes a decelerating action and causes anxiety of the ship.

Further, the propulsion direction control by the rudder has a problem that there is a limit in speed response and mechanical strength.

An object of the present invention is to solve the above problems and realize high speed and stable traveling of a ship.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the water jet propulsion device according to the present invention is provided with an intake port (1) and a drain port (3) on both sides of the bow where the water resistance is strongest, and an intake conduit (2) is provided inside. Have.

Further, it has an engine (7), a compressor (8) and a pressure vessel (9) for increasing the pressure of the water sucked by the water intake conduit (2).

It also has a propulsion conduit (4) for injecting high-pressure water, a flow control valve (10), a propulsion and ejection nozzle (11), and a direction control device (13).

Further, it has a braking conduit (5), a flow control valve (10), a braking injection nozzle (12), and a hydraulic directional control device (13) for braking. The present invention provides a ship propulsion apparatus having the above-mentioned configuration.

[0011]

[Action]

 The engine (7) is started and the compressor (8) is operated. The water sucked from the water intake (1) enters the compressor (8) through the water intake conduit (2), becomes high-pressure water, and is stored in the pressure vessel (9).

Next, the flow rate control valve (10) is controlled according to the required speed to inject the high-pressure water guided to the propulsion conduit (4) rearward from the propulsion injection nozzle (11) to increase the propulsion force. obtain.

During braking, high-pressure water from the pressure vessel (9) is guided to the braking conduit (5), is controlled by the flow control valve (10), and is injected from the braking injection nozzle (12) for braking. To get

【Example】

 Examples will be described with reference to the drawings. The water sucked from the water intake (1) in FIG. 3 is sent to the compressor (8) powered by the engine (7) via the water intake conduit (2) in FIG. Store in 9). The flow control valve (10) is controlled according to the traveling speed, and high-pressure water is injected from the propulsion injection nozzle (11) through the propulsion conduit (4) to obtain high-speed propulsion force. Also, during braking, high-pressure water from the pressure vessel (9) is controlled by the flow control valve (10) via the braking conduit (5) and is injected by the braking injection nozzle (12) to obtain high-speed braking. . Further, in FIG. 1, at the time of turning, the right and left combinations of the propulsion injection nozzle (11) and the braking injection nozzle (12) allow the hull to rotate at a high speed with a couple.

In FIG. 2, a direction control device (13) is added to the configuration of FIG. 1 in the propulsion conduit (4) and the braking conduit (5) to control the propulsion direction and the braking direction (13). ) To get high-speed operation.

[0016]

[Effect of device]

 By providing the intake port (1) and drain port (3) on both sides of the bow, which has the highest water resistance during traveling, high-speed traveling is possible, and by taking water, the vessel is stable and It is an energy-saving type that can reuse the water force taken, and it can operate at 100 knots high speed by controlling the pressurized water pressure and flow rate.

[Brief description of drawings]

FIG. 1 is a plan half-sectional view of a ship showing the present device.

FIG. 2 is a half plan view of the plane of the ship of the present device with the addition of a direction control device (13).

FIG. 3 is a side view of the ship of the present device showing the intake port (1) and the drain port (3).

[Explanation of symbols]

 1 Water Intake 2 Water Intake Pipe 3 Drain 4 Propulsion Pipe 5 Braking Pipe 6 Entos 7 Engine 8 Compressor 9 Pressure Vessel 10 Flow Control Valve 11 Propulsion Injection Nozzle 12 Braking Injection Nozzle 13 Directional Control Equipment

Claims (2)

[Scope of utility model registration request] 1. A compressor (8) having a water intake (1) and driven by an engine (7) for compressing the water sucked in a water intake conduit (2), and a pressure vessel (9). ), A propulsion conduit (4) for injecting high-pressure water, a flow control valve (10), and a propulsion injection nozzle (11), and for braking, a braking conduit (5) A water injection type boat propulsion apparatus including a flow control valve (10) and a braking injection nozzle (12). 2. A direction control device (13) for controlling the directions of the propulsion injection nozzle (11) and the braking injection nozzle (12).
The water-jet type ship propulsion apparatus according to claim 1, further comprising: