KR200173694Y1 - Connecting structure between a turbocharger and an intake manifold for a marine engine - Google Patents

Abstract

The present invention facilitates the disassembly / assembly of the cylinder head cover 4 of the ship engine 1, and the turbocharger and the intake manifold of the ship engine which can lower the height of the ship engine 1 while maintaining the external dimension. Provide a connection structure.

The connection structure includes a cylinder block (2), a cylinder head (3), and a cylinder head carver (4) together with a turbocharger (6), and an intake manifold (5) having a horizontal inlet is a cylinder head (3). In the marine engine 1 installed on one side of the vessel), the cylinder head cover 4 of the marine engine 1 is easily disassembled and assembled, and the height of the marine engine 1 is lowered while maintaining the external dimensions. The turbocharger 6 is installed at the rear upper portion of the marine engine 1 so that the second intake connecting tube 20, the intercooler 10, and the first intake connecting tube 7 are sequentially horizontally provided. It surrounds the circumference of the cylinder head 3 from the manifold 5 and is connected to the intake outlet of the turbocharger 6, characterized in that an intake line is constructed.

Description

CONNECTING STRUCTURE BETWEEN A TURBOCHARGER AND AN INTAKE MANIFOLD FOR A MARINE ENGINE}

The present invention relates to a turbocharger and an intake manifold connection structure of a marine engine, and more particularly, to a marine engine having an intercooler and having an outlet of an intake manifold horizontally, The present invention relates to a turbocharger and an intake manifold connection structure of a marine engine that facilitates disassembly / assembly and lowers the overall height of an engine while maintaining an external dimension.

In general, a marine engine is manufactured by marinaizing with a marine engine by installing a screw shaft as a propulsion shaft through a reducer at the rear lower portion of a diesel engine for general vehicles.

At this time, a turbocharger (not shown) is provided on the opposite side of the intake manifold side of the engine, and in the connection of the intake manifold, turbocharger and intercooler, the intercooler is connected to the outlet side of the turbocharger, Is configured to connect the intake manifold and intercooler over the engine cylinder head cover to minimize pipeline resistance. In this case, high-pressure, heat-resistant hoses or steel pipes are connected to each intake manifold and via a connection pipe of a casting which is usually fixed to the intercooler side.

However, in the marine engine of such a structure, in order to disassemble the cylinder head carver for the purpose of adjusting and repairing various intake valves and exhaust valves installed in the cylinder head carver, a turbocharger, an intercooler, and an intake manifold passing over the cylinder head carver are provided. There is a problem that the connection pipe of the suction line of the fold must be dismantled.

In addition, there is a problem in that the height of the ship engine becomes high because the connection pipe of the suction line passes over the cylinder head carver, and thus, the space of the ship is not usefully used. Further, even when the intercooler is directly connected to the inlet of the intake manifold in the horizontal direction, the intercooler protrudes a lot in the lateral direction and occupies a lot of space.

Accordingly, the present invention is to solve such a problem, and to facilitate the disassembly / assembly of the cylinder head cover of the ship engine, and to reduce the height of the ship engine while maintaining the external dimension, the turbocharger and the intake manifold of the ship engine. The purpose is to provide a fold connection structure.

1 is a side view of an intake manifold side of a ship engine showing a turbocharger and an intake manifold connection structure of a ship engine according to an embodiment of the present invention;

Figure 2 is a front view showing the structure of the second intake connecting pipe of the intake line of the turbocharger and the intake manifold of the marine engine according to an embodiment of the present invention,

3 is a cross-sectional view taken along the line C-C of FIG.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B of FIG. 3.

<Description of Signs for Main Parts of Drawings>

1: engine 2: cylinder block

3: cylinder head 4: cylinder head cover

5: intake manifold 6: turbocharger

7: 1st intake connector 8: Sea water pump

9: inlet pipe 9 ': outlet pipe

10: Intercooler 11: Lower Cover

12: upper cover 20: second intake connector

21: tube 22: first flange

23, 24, 26: bolt through hole 25: 2nd flange

Turbocharger and intake manifold connection structure of a marine engine according to an embodiment of the present invention to achieve this purpose, having a cylinder block, a cylinder head and a cylinder head carver together with a turbocharger, and has an intake having a horizontal inlet A marine engine in which a manifold is installed on one side of a cylinder head: The turbocharger is a marine engine, which facilitates disassembly / assembly of the cylinder head cover of the marine engine and lowers the height of the marine engine while maintaining an external dimension. Installed in the rear upper part of the second intake connector, intercool And the first and second intake pipes are sequentially horizontally enclosed around the cylinder head from the intake manifold and connected to the intake outlet of the turbocharger, thereby forming an intake line.

The second intake connecting tube includes a hollow tube through which the intake air passes, and a first flange and a second flange for fixing and hermetically connecting the intake manifold and the intercooler to the intake manifold and the intercooler using bolt through holes. The bolt through-hole is formed in the tubular body so that the hollow portion of the tubular body is hermetically sealed, so that the second intake connecting tube can be firmly and hermetically mounted on the intake manifold.

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

1 shows a turbocharger and an intake manifold connection structure of a marine engine 1 according to an embodiment of the present invention as a perspective view.

In the turbocharger and intake manifold connection structure of a marine engine according to an embodiment of the present invention in Figure 1, the turbocharger 6 is installed on the rear upper portion of the marine engine 1, the suction line (7, 20) The intercooler 10 is interposed between the turbocharger 6 and the intake manifold 5 to surround the cylinder head 3.

As such, the suction line is formed of the first intake connecting tube 7 and the second intake connecting tube 20, and intersects the upper portion of the cylinder head carver 4 unlike the related art by interposing the intercooler 10. Since the pipe is not piped, the cylinder head cover 4 of the stranded ship engine 1 is easily disassembled and assembled, and furthermore, only the pipe height is increased without increasing the external dimension. It is possible to lower the height of the marine engine (1) large, so that the entire marine engine (1) becomes a compact structure.

Further, the intercooler 10 is installed at the corner portion behind the intake manifold 5 side of the engine 1 so that the outlet of the intake manifold 5 having an outlet in the horizontal direction and the intake outlet of the intercooler 10 ( 14) shown in FIG. 3) can be directly connected to the second intake connecting pipe 20, which is a cast product, and the inlet 13 of the intercooler 10 and the outlet of the turbocharger 6 are connected to each other. It can be directly connected to the first intake connecting pipe (7) can be made easily pipe.

In FIG. 1, the intercooler 10 is introduced from the seawater pump 8 through an inflow pipe 9 of the seawater attached to the lower cover 11 (see FIG. 3), and the outflow pipe attached to the upper cover 12 ( 9 ') flows into the seawater in the interior of the intercooler 10 (not shown), with a plurality of seawater passing pipes and a plurality of heat exchanger fins around the pipes, and suctioned from the turbocharger 6. It cools the supercharged intake air. Usually, the outflow pipe 9 'is connected to a speed reducer, not shown, to cool the speed reducer by sea water.

2 to 5 illustrate a second intake connecting pipe 20 connecting the intake manifold 5 and the intercooler 10. The first intake connecting pipe 7 may be similarly configured.

2 and 3, the second intake connecting pipe 20, the tubular body 21 is formed in a hollow shape, the hollow portion is open at right angles at both ends, the first flange for mounting on both ends of the tubular body 21 22 and the second flange 25 are formed. A plurality of bolt through holes 23 and 26 are formed in the first flange 22 and the second flange 25 so that balls may be formed in the intake manifold 5 and the intercooler 10, respectively. It is configured to be fixedly installed using the net.

In addition, the bolt through-hole 24 is formed to be airtight in the substantially central portion of the tubular body 21 so as to be fixed at the central portion of the tubular body 21 when it is mounted on the intake manifold 5. It will be possible to secure more confidentiality. In FIG. 3 and FIG. 4, the rib is provided in the hollow part of the tubular body 21, and the bolt through-hole 24 is formed in the rib.

FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. 2, in which the tubular body 21 has a substantially hollow rectangular cross-sectional shape, but may be modified into a circle, an ellipse, or the like.

In addition, in FIG. 1, since the intercooler 10 is installed at the rear of the intake manifold 5 side, the openings at both ends of the second intake connecting pipe 20 form a right angle, but the intercooler 10 is connected to the engine 1. In the case of being installed at one corner of the rear side, the second intake connecting pipe 20 has an opening portion and a second flange 25 at the right end in FIG. 3 similar to the opening portion and the first flange 22 at the left end. It is preferable to be formed in a parallel direction so as to facilitate the installation.

As such, the turbocharger and the intake manifold connection structure of the ship engine are configured, so that the intake of the supercharger in the turbocharger 6 flows into the intercooler 10 through the first intake connection pipe 7 as shown in FIG. Then, the suction is taken into the intake manifold 5 through the second intake connection pipe 20 from the intercooler 10.

As described above, the intercooler 10 and its suction line do not protrude to the upper side or the side of the engine 1 so that the marine engine 1 is compactly constructed, and the length of the pipe is shortened. It can be made to shrink, and piping can be facilitated. In addition, since the suction line does not pass through the upper part of the engine 1, the assembly and disassembly of the cylinder head carver 4 can be easily performed.

According to the configuration and operation of the turbocharger and the intake manifold connection structure of the marine engine according to the embodiment of the present invention described above, the first intake connecting pipe 7 and the second intake connecting pipe 20 without the need to install a separate pipe By forming the suction line via the intercooler 10 by using a), the assembly and disassembly of the cylinder head cover 4 becomes easy, and the height can be reduced to a compact configuration without increasing the external dimension (width and length). In addition, there are effects such as facilitating piping.

Claims (2)

An intake manifold (5) having a cylinder block (2), a cylinder head (3) and a cylinder head cover (4) together with a turbocharger (6) and having a horizontal inlet is installed on one side of the cylinder head (3). In the marine engine 1 which becomes: The turbocharger 6 is provided with a marine engine 1 so as to facilitate the disassembly / assembly of the cylinder head cover 4 of the marine engine 1 and to lower the height of the marine engine 1 while maintaining an external dimension. It is installed in the upper rear portion of the second intake connecting pipe 20, the intercooler 10 and the first intake connecting pipe (7) in order to horizontally around the cylinder head (3) from the intake manifold (5) Turbocharger and intake manifold connection structure of a marine engine, characterized in that the intake line is configured to surround the intake outlet of the turbocharger (6). According to claim 1, The second intake connecting pipe 20 is a hollow tube 21 through which the intake air passes, and the intake manifold 5 and the intercooler 10 at both ends of the tube 21 are bolted The first flange 22 and the second flange 25 are formed to be fixed and hermetically connected using the through holes 23 and 26, and the bolt through holes 24 are formed so that the hollow part of the tubular body 21 is hermetically sealed. Turbocharger and intake manifold connection structure of a marine engine, characterized in that formed in the tube (21).