KR20140030371A

KR20140030371A - Power transmission device of ship

Info

Publication number: KR20140030371A
Application number: KR1020120093752A
Authority: KR
Inventors: 이동교
Original assignee: 현대중공업 주식회사
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2014-03-12

Abstract

The present invention relates to a ship power transmission device including a torque converter disposed between an engine and a propeller to transmit power of the engine to the propeller, wherein the torque converter is coupled to the front cover and the front cover to rotate the impeller. And a turbine disposed to face the impeller, and a stator disposed between the impeller and the turbine to change the flow of oil from the turbine to the impeller side.
Therefore, according to the present invention, the torque output from the engine may be amplified at initial startup, and the propeller may be driven even with a small output.

Description

POWER TRANSMISSION DEVICE OF SHIP

The present invention relates to a power transmission device of a ship, and more particularly, to a power transmission device of a ship that can obtain a high torque, high power and fuel cost reduction effect of the engine.

In general, the propulsion force required for navigation in ships is mainly generated from the operation of propeller type propellers installed at the stern. As shown in FIG. 1, the ship includes a drive engine 10 installed therein, a propeller (not shown) for generating a propulsion force for propelling the ship when the ship rotates, and an output shaft of the drive engine 10. And a power transmission device 30 connected between the propeller and the driving force of the driving engine 10 to the propeller.

In addition, the power transmission device 30 includes a clutch 32, a fluid coupling 34, a gear box 36, and the like, thereby reducing the rotational speed of the drive engine 10 to drive the propeller. The power of the engine 10 was transmitted.

However, as described above, according to the conventional power transmission device, the output torque of the driving engine and the output torque of the propeller are formed to be the same, so that a relatively large torque is required to drive the driving engine during initial startup, thereby lowering the fuel economy of the engine. There was a problem.

The present invention is to solve the above-mentioned problems, to provide a power transmission device of a ship that can produce a high efficiency output and low fuel consumption by providing a stator.

The ship power transmission apparatus of the present invention for achieving the above object is disposed between the engine and the propeller includes a torque converter for transmitting the power of the engine to the propeller, the torque converter, the front cover; An impeller coupled to the front cover to rotate; A turbine disposed to face the impeller; And a stator disposed between the impeller and the turbine to change the flow of oil from the turbine to the impeller side. And a control unit.

In addition, the stator is characterized in that the flow cross-sectional area is enlarged toward the fluid outlet side.

In addition, the stator is characterized in that the diameter of the fluid outlet side is formed larger than the diameter of the fluid inlet side.

In addition, the stator is characterized in that the surface disposed on the outer peripheral side in the direction in which the diameter increases in the fluid outlet side direction is inclined.

According to the present invention, the torque converter provided with the stator is provided in the power transmission device of the ship, thereby amplifying the torque output from the drive engine at the initial start, thereby driving the propeller with only a small output.

1 is a schematic view showing a power transmission device of a typical ship.
2 is a schematic view showing a power transmission apparatus of a ship according to an embodiment of the present invention.
3 is an exploded perspective view showing a torque converter of a power transmission apparatus of a ship according to an embodiment of the present invention.
Figure 4 is a perspective view showing the stator of the power transmission device of the ship according to an embodiment of the present invention.
5 is a side view showing a stator of the power transmission apparatus of the ship according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram showing a power transmission device of the ship according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a torque converter of the power transmission device of the ship according to an embodiment of the present invention, Figure 4 and Figure 5 is a perspective view and a side view showing a stator of a ship power transmission device according to an embodiment of the present invention, with reference to Figures 2 to 5 will be described in detail with respect to the ship power transmission device.

Referring to FIG. 2, the power transmission device is disposed between an engine 100 and a propeller (not shown) to transfer power of the engine 100 to the propeller, and includes a torque converter 200. .

That is, according to the exemplary embodiment of the present invention, the torque converter 200 may provide a torque coupling 200 and a clutch coupling function, thereby simultaneously amplifying torque by about three times, and thus, 1/3 of the output from the engine 100. It is possible to operate the propeller through a reducer alone, and as a result, it is possible to obtain effects such as reduction of engine fuel cost, high torque and high power.

Referring to FIG. 3, the torque converter 200 includes a front cover (not shown), an impeller 210, a turbine 220, and a stator 230, and the impeller 210 is coupled to the front cover. The turbine 220 is disposed to face the impeller 210. And, the stator 230 is disposed between the impeller 210 and the turbine 220 serves to change the flow of oil from the turbine 220 to the impeller 210 side, the same as the front cover Has a center of rotation.

Meanwhile, as illustrated in FIG. 4, the stator 230 includes an inner ring 231, an outer ring 232, and a plurality of blades 233 disposed therebetween. The plurality of blades 233 serves to change the flow of the fluid. In addition, the stator 230 is provided with a fluid inlet 234 on the turbine 220 side, and a fluid outlet 235 on the impeller 210 side. That is, fluid flows from the impeller 210 to the turbine 220 and out of the fluid outlet 235 through the fluid inlet 234 of the stator 230 to the fluid outlet 235 and the flow of fluid by the blades 233. The direction of is changed and moved to the impeller 210 again (see Fig. 3).

In this case, the stator 230 preferably has a diameter D1 of the fluid outlet 235 larger than a diameter D2 of the fluid inlet 234. That is, as shown in FIG. 5, the stator 230 of one embodiment of the present invention has a larger flow cross section of the fluid toward the fluid outlet 235 from the fluid inlet 234.

In addition, in a more preferred embodiment of the present invention, the outer ring 231 of the stator 230 has an angle a inclined upward toward the impeller 210 side. That is, the outer ring 232 of the stator 230 is preferably inclined in a direction in which the fluid outlet 235 side is larger than the fluid inlet 234 side.

That is, the blades 233 of the stator 230 described above are preferably made of a structure in which its diameter (distance from one end to the other end of the symmetric blades) increases from the fluid inlet 234 toward the fluid outlet 235. Do.

The stator 230 has the effect of increasing the torque capacity coefficient as the flow separation decreases as the flow cross-sectional area flowing into the impeller 210 increases, and the flow rate decreases as the fluid moves, so that the fluid stator 230 In this case, the coupling time ratio is generated at the high speed ratio to increase the maximum efficiency, the high speed ratio torque ratio is increased, and contributes to increasing the durability of the blade 233.

100: engine 200: torque converter
210: impeller 220: turbine
230: Stator

Claims

In the ship power transmission apparatus including a torque converter disposed between the engine and the propeller for transmitting the power of the engine to the propeller,
The torque converter,
Front cover;
An impeller coupled to the front cover to rotate;
A turbine disposed to face the impeller; And
A stator disposed between the impeller and the turbine to change the flow of oil from the turbine to the impeller side; Power transmission device of the ship, characterized in that comprising a.

The method of claim 1,
The stator has a structure in which the flow cross-sectional area is enlarged toward the fluid outlet side, characterized in that the ship power transmission device.

The method of claim 1,
The stator is a power transmission device of the ship, characterized in that the diameter of the fluid outlet side is formed larger than the diameter of the fluid inlet side.

The method of claim 1,
The stator has a power transmission device of the ship, characterized in that the inclined surface disposed on the outer peripheral side in the direction of increasing the diameter in the fluid outlet side direction.