JP2009113781A - Front drive power device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front drive power device for playing a role of the front wheel drive of a four-wheel drive when a hull is compared to a vehicle by providing the front drive power devices on a main propeller at a stern of a hull itself for forward and backward proceeding, a stern rudder and a bulbous bow of the hull, capable of eliminating the need for many guide boats, preventing any sea casualty between hulls by easy and sudden steering, and escaping any grounding in a strong wind by the synergistic effect of the driving force by the main propeller, the change of direction by the stern rudder, and the change of direction in the right-to-left direction by the front drive power device and the right-to-left opening/closing by two doors at jet ports. <P>SOLUTION: In the front drive power device, a bulbous opening/closing valve is provided at a water suction port of a bulbous bow of a hull; a cylindrical tube is provided behind the bulbous opening/closing valve; a screw is provided on the cylindrical tube; elliptical jet ports are opened in a part close to a rear end of the screw to a bottom part of the hull; and two right and left doors are provided on the jet ports in an opening/closing manner, enabling the steering. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Technology field

  In addition to the forward and backward marching of the hull's main propeller, the present invention provides a front drive power device at the hull's spherical bow, and if the hull is compared to a car, it is a synergistic effect that acts as a four-wheel drive, requiring many guide ships In addition, the present invention relates to a front drive power device that can be easily steered, prevents marine accidents between hulls, and can prevent grounding in strong winds.

  Conventionally, steering with only the leading propeller at the stern of the hull makes it difficult to steer when the speed drops, and large hulls borrow the power of many guide ships at the time of entering and leaving the port and guide and change the direction of berthing and departure There was a helpless guidance, there was a powerless weakness against the strong crosswind of the hull, and there was a danger of grounding.

For this improvement, in addition to the forward and backward marching of the hull's main propeller, a front drive power device is provided at the spherical bow of the hull, and if the hull is compared to a car, it serves as a front drive for four-wheel drive. The front drive power device that does not require a large number of guide ships, is easy to steer suddenly, prevents maritime accidents between the hulls, and prevents grounding in strong winds. did.
Application No. Japanese Patent Application No. 8-272599

  In the conventional method, the rudder becomes difficult to operate when the speed is lowered only by steering the hull's leading propeller, and when entering or leaving the port, larger hulls require more guide ships and labor costs, preventing marine accidents between hulls. There is a problem that is a weak point against the crosswind of the hull when the wind is strong and the direction change.

  In order to achieve the above object, in the present invention, in the first aspect of the present invention, a spherical opening and closing valve (3) is provided in a circular hole which is a water inlet (7) in the foremost center of the spherical bow (2) of the hull (1) A cylindrical pipe (6) is provided horizontally behind the spherical on-off valve (3) in a direction toward the center of the hull, and a screw (4) is provided in the cylindrical pipe (6). The screw (4) is provided at the bottom of the ship. The cylindrical pipe (6) descends obliquely downward toward the bottom of the hull from near the rear end of the screw (4). An elliptical injection port (8) is opened at the bottom of the ship, and two right and left doors (11, 12) are provided in the injection port (8) so as to be openable and closable. ) Open the spherical open / close valve (3), open the door (11, 12) of the injection port (8) and By operating the view (4), the operating force that the hull (1) moves forward increases, and by closing the starboard door B (12), it can be steered in the starboard direction, and on the contrary the port door A (11) The front drive power device characterized by being able to steer in the port direction by closing is provided to solve the problem.

  The front drive power device of the present invention provides a screw and power to the spherical bow of the hull, and two openable left and right doors are provided at the injection port on the bottom of the spherical bow, and when the starboard side door is closed, the hull is Steering in the starboard direction and closing in the opposite door can steer in the port direction. By adding the main propeller and rudder provided at the stern, the navigation speed is accelerated and the steering is stable.

  The front drive power device is provided with a cylindrical tube which is a water absorption port in the forefront center of the hull spherical bow, a screw is provided in this cylindrical tube, and an elliptical injection port is provided obliquely downward from the rear of the screw. With two doors that can be opened and closed, the door can be steered according to how the doors are opened and closed, so that the navigation speed has been increased and the front drive power device has been stabilized.

FIG. 1 shows that a spherical opening / closing valve (3) is provided in a circular hole which is a water inlet (7) in the foremost center of a spherical bow (2) of a hull (1), and a hull center is located behind the spherical opening / closing valve (3). A cylindrical pipe (6) is provided horizontally in the direction toward the pipe, and a screw (4) is provided in the cylindrical pipe (6). The screw (4) is driven by the power (10) provided on the bottom of the ship via the shaft (X). Sectional drawing from the side of the hull which is made to rotate and is the state which the water inlet (7) and the injection port (8) opened.
FIG. 2 is a cross-sectional view from the side of the hull in a state where the spherical on-off valve (3) and the injection port (8) at the water inlet (7) in FIG. 1 are closed.
FIG. 3 shows that the spherical opening / closing valve (3) of the spherical bow (2) is open, the screw (4) supported by the column (5) in the cylindrical pipe (6) is installed, and the oval is formed on the bottom of the ship. Sectional drawing seen from the seabed of the state which is open.
FIG. 4 is a cross-sectional view seen from the seabed in a state where the spherical opening / closing valve (3) of FIG. 3 is closed and the door A (11) and the door B (12) of the injection port (8) are closed.

  As an application example of the present invention, by providing a front drive power device on the main propeller and stern rudder and spherical bow at the stern of the hull itself, if the hull is compared with a car, it serves as a front wheel drive of four-wheel drive, Due to the synergistic effect of the front / rear driving force of the main propeller and the direction change of the stern rudder and the driving force of the front drive power device and the left and right opening / closing by the two doors of the injection port, many guide ships are not required, Provided is a front drive power device that can be quickly and easily steered, prevents marine accidents between hulls, and has the advantage of avoiding grounding in strong winds.

FIG. 3 is a cross-sectional view of a side surface of each part that is a front driving power device in a spherical bow of the hull. FIG. 3 is a cross-sectional side view of a closed side of each part of the hull spherical bow front drive power device. It is sectional drawing of the spherical bow seen from the seabed of FIG. It is sectional drawing of the spherical bow as seen from the seabed of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, Hull 2, Spherical bow 3, Spherical opening / closing valve 4, Screw 5, Strut 6, Cylindrical tube 7, Water inlet 8, Jet 9, Neck 10, Power 11, Door A
12. Door B
X, axis

Claims (1)

  A spherical opening / closing valve (3) is provided in a circular hole which is the water inlet (7) in the foremost center of the spherical bow (2) of the hull (1), and in the direction toward the center of the hull behind the spherical opening / closing valve (3). A cylindrical tube (6) is provided horizontally, a screw (4) is provided in the cylindrical tube (6), and the screw (4) is rotated via the shaft (X) by the power (10) provided at the bottom of the ship. The cylindrical pipe (6) is inclined downward from the vicinity of the rear end of the screw (4) to the bottom of the hull, and has an elliptical injection port (8) open at the bottom of the ship. The injection port (8) is provided with two left and right doors (11, 12) that can be opened and closed. The spherical opening / closing valve (3) of the water intake port (7) is opened, and the injection port (8 ) Open the door (11, 12) and operate the screw (4) to move the hull (1) forward The front drive power device is characterized in that it can be steered in the starboard direction by closing the starboard door B (12), and can be steered in the port direction by closing the starboard door A (11). .

Images