RS50710B - BRAKE PUSHBUTTON WITH EXTERNAL INSTALLATION - Google Patents

Abstract

Transverse pusher, and in particular bow thruster for ships with one hull (5) and at least one electric motor (11) and at least one propeller (13), characterized in that they are in the hull (5) outside the ship and on the hull (6) of the ship , an installed electric motor (11) or more longitudinally arranged electric motors (11) and at least one propeller (13). The application contains 10 more patent claims.

Description

BOW THRUSHERS

EXTERNAL MOUNTING

The invention relates to a transverse thruster, and in particular to a bow thruster for ships with one housing and at least one electric motor and at least one propeller.

Transverse thrusters installed in the body of the ship are known, which consist of a channel made in the form of a tunnel tube and a connected drive with a propeller, for example in WO 2003/047966 A2. With this solution, one propeller rotates in one transverse channel and pushes the suctioned water, similar to an axial pump, depending on the chosen direction of rotation or the position of the vanes in those pushers where the propeller vanes can be adjusted by the control system. With such a single device with lateral thrust, it is especially easy to maneuver the ship at low speed. The installation of such a transverse pusher requires a certain dimensional minimum size (width and draft) of the hull in order to be able to mount the transverse channel. The side openings of the transverse pusher have a negative effect on the characteristics of the fuselage. During the operation of transverse thrusters, unpleasant noise is usually produced, which burdens the immediate environment.

From patents EP 0 716 977 A1 and US 2001/0291133 A1, transverse thrusters without a transverse thrust channel are known, where the propeller is located outside the ship in the water, and whose engine is located inside the ship. The most commonly used electric motors are located inside the ship, so it is difficult to cool them.

Patents US 5 152 240 A and US 4 529 386 A describe a transverse pusher which is completely located inside the ship and which can be pulled out from the bow by opening a flap located in the hull, or which can be pulled back into the bow of the ship.

All the transverse thrusters mentioned so far, depending on the construction, require considerable space inside the ship.

Thrusters located outside the ship are also known. Patent US 4 732 104 A reports all the features of Claim 1, and patents DE 30 01 701, US 4 208 978 A, US 4 223 625 A and US 3 251 330 report transverse thrusters which are attached to the bow and which are placed above the water when not in use. Various devices, such as by manually oscillating around the horizontal axis, activating the pulley cables, moving the shaft elbow by retracting and retracting the elbow, or switching on the hydraulics, the transverse pushers can be brought to a level below the water surface. Lowering the cross pushers into the working position requires more or less great effort.

From the patent Fr 2 810 012 A1 comes a transverse pusher which is placed laterally on the side of the ship, outside the ship and whose engine and propeller in operation are located in a housing that is under water.

Furthermore, from the patent EP 0 566 788, a drive plant with an electric motor with propellers, which is placed externally on the ship's hull, is known.

The basic task of the invention was to overcome the known constructions of transverse thrusters, and to overcome their already mentioned disadvantages.

This task, according to the invention, is solved by a transverse pusher in all respects according to Claim 1.

The recommended and favorable method of execution are the subject of dependent Requests.

In the transverse thruster, according to the invention, the housing, in which one or more electric motors and at least one propeller are placed longitudinally, is fixed outside the ship's hull on the bow. The dimensions of the complete mechanism are here reduced to the smallest possible extent and, from the point of view of obstruction, conveniently placed outside the ship. The transverse thruster, according to the invention, does not have transverse channels in the bow, but is attached at the outer end to the lower sides of the bow of the hull. This enables the use of the transverse pusher independently and regardless of the size of the ship. At the same time, the need for increased space and expensive installation in the interior of the ship is reduced. The drive housing mounted outside the ship is cooled by water

Other details, characteristics and advantages of the transverse pusher according to the invention can be seen from the following description, taking into account the attached drawings in which an advantageous embodiment is presented.

The following pictures show: SI. 1 - side view of the transverse pusher according to the invention, SI.2 - top view of the transverse pusher according to the invention, SI.3 - front view of the transverse pusher according to the invention, SI.4 - transverse pusher according to the invention in perspective, and SI.5 - cross section of the transverse pusher according to the invention.

The transverse pusher according to the invention has a housing 5 with one propeller 13 to which the motor 11 is connected. The attachment of the housing 5 of the transverse pusher is achieved by means of three screws 1, 1a that pass through the hull 6 of the ship, at least one of which is designed as a hollow shaft and serves to guide the cable. During assembly, a rubber seal 2 is placed between the hull 6 of the ship and the housing 5. The construction of the rubber seal is designed to be of such a type that the rubber seal 2 is not damaged during assembly. The controlled degree of compression of the rubber seal 2 is a prerequisite to achieve an almost unlimited quality of the connection, because the structure of the material is retained, which is resistant to both fresh and salt water. Rubber seal 2 is not mechanically loaded.

Mounting with three screws with the so-called three contact points is known in the art and allows subsequent position corrections (here vertical corrections) in a simple way. This way of construction guarantees the adjustment in relation to the curvature of the ship's hull 6 and the tightness of the system.

In addition, layers 4, 7 of hard rubber prevent the transmission of noise from the housing 5 of the transverse pusher to the hull 6 of the ship. In the interior of the ship, a layer 7 of hard rubber and a washer 8 are placed, which are tightly connected by means of two nuts 9 per threaded rod 2. They are now properly connected by connecting cables 10 inside the fuselage.

The streamlined housing 5 serves to protect the propeller 13 and reduces water resistance to a minimum when the ship is moving forward. The DC motor 11, located inside the housing 5, is mounted longitudinally so that it does not leak water and is cooled by the water 15 flowing around it. Thus, the motor 11 is constantly cooled and thus it can be installed without it overheating.

Power is transmitted directly through one or more bevel gears 12 with one or more propellers 13. The entire unit is mounted multiple times via ball bearings 14 and sealed. In the case of the need for greater power, several propellers 13 and drives with a maximum of two oppositely placed electric motors 11 are placed longitudinally one after the other in one housing.

The housing 5 can be coated with one of the copper alloys if desired, which does not affect the plant.

The largest possible distance between the transverse thruster and the lateral center of gravity of the ship is at the same time the length of the working lever, which enables a greater degree of utility of the plant. The streamlined hull 5 contributes to increasing the stability of the ship's course without slowing down the forward motion.

During fast navigation (motor boats), the transverse thruster protrudes during driving above the water and the plant is located outside the water current. During slower maneuvers in the port, the transverse thruster is fully functional.

The size of the transverse thruster can be adjusted for every size of ship, from large yachts, through medium-sized ships (motor ships) and thrusters (sailboats).

Claims (11)

1. Transverse thruster, and especially bow thruster for ships with one housing (5) and at least one electric motor (11) and at least one propeller (13), indicated by the fact that an electric motor (11) or several longitudinally arranged electric motors (11) and at least one propeller (13) are placed in the housing (5) outside the ship, and on the hull (6) of the ship. 2. Transverse thruster, according to Claim 1, characterized in that the housing (5) is attached outside the ship at the outer end of the lower side of the bow of the hull. 3. Transverse thruster, according to Claim 1 or 2, characterized in that the housing (5) attached outside the ship with the electric motor (11) is cooled by water. 4. Transverse thruster, according to one of Claims 1 to 3, characterized in that the housing (5), attached outside the ship, is attached to three support points on the hull (6). 5. Transverse thruster, according to one of Claims 1 to 4, characterized in that the housing (5) of the transverse thruster outside the ship is attached to the hull (6) of the ship by means of three or more screws (1, 1a), which pass through the hull (6) of the ship. 6. Transverse pusher, according to Claim 5, characterized in that at least one of the said screws (1, 1a) is designed as a hollow shaft (1a). 7. Transverse pusher, according to Claim 6, characterized in that the connecting cable (10) is passed through the hollow shaft (1a). 8. Transverse pusher, according to Claim 4, characterized in that the housing (5) has recesses in the area of the installation points or. fixings in which rubber seals are placed, especially porous rubber seals. 9. Transverse thruster, according to one of Claims 1 to 8, characterized by the fact that hard rubber elements (4,7) are placed at the installation points on both sides of the hull (6) of the ship. 10. Transverse thruster, according to one of Claims 1 to 9, characterized in that the housing (5) of the transverse thruster placed outside the ship has one or more propellers (13), placed parallel or one behind the other. 11. Transverse thruster, according to one of Claims 1 to 10, characterized in that the axis of at least one of the electric motors (11) and the axis of at least one of the propellers (13) are at right angles to each other.