KR200172077Y1 - 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 10, and the turbocharger of the ship engine capable of lowering the height H of the ship engine 10 while maintaining an external dimension. Provide a suction manifold connection structure.

The turbocharger and suction manifold connection structure, together with the turbocharger 13, has a cylinder block 2, a cylinder head 3 and a cylinder head cover 4, and a suction manifold on one side of the cylinder head 3; In the ship engine 10 in which the screw shaft 12 which is a propulsion shaft is installed via the reducer 11 connected to the rear lower part of the engine 1 in which the fold 5 is installed: The cylinder of the ship engine 10 The turbocharger 13 is installed at the rear upper portion of the ship engine 10 to facilitate the disassembly / assembly of the head cover 4 and to lower the height H of the ship engine 10 while maintaining the external dimension. And a turbocharger and a suction manifold connector 20 which surrounds the cylinder head 3 from the suction manifold 5 and is connected to the intake outlet 13 ′ of the turbocharger 13. It is characterized by.

Description

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

The present invention relates to a turbocharger and a suction manifold connection structure of a ship engine, and more particularly, 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 dimensions. It relates to a turbocharger and a suction manifold connection structure of a marine engine.

In general, referring to FIG. 1, a marine engine is marinated to the marine engine 10 by installing a screw shaft 12, which is a propulsion shaft, via a reducer 11, generally in the rear lower portion of a vehicle diesel engine 1. (marinizing)

At this time, a turbocharger (not shown) is provided on the side opposite to the intake manifold side of the engine, and the connection between the intake manifold and the turbocharger is shown in FIG. 1 and FIG. In order to minimize, the intake manifold 5 and the turbocharger 13 are connected via a turbocharger and an intake manifold connecting pipe 20 'passing through the cylinder head cover 4 of the engine 1. In this case, the high-pressure, heat-resistant hose or steel pipe is connected to each suction manifold 5 and the roughly cast pipe fixed to the turbocharger 13 side.

However, in the ship engine of such a structure, in order to disassemble the cylinder head cover 4 for the purpose of adjustment and repair of various intake valves and exhaust valves installed in the cylinder head cover 4, There is a problem in that the turbocharger and the suction manifold pipe 20 'passing through must be dismantled.

In addition, since the turbocharger and the suction manifold pipe 20 'passes over the cylinder head cover 4, the height H' of the ship engine 10 becomes high, and thus, the space of the ship is not usefully used. There are also problems such as not being able to.

Therefore, the present invention is to solve this problem, it is easy to disassemble / assemble the cylinder head cover of the ship engine, the turbocharger and the suction manifold of the ship engine that can lower the height of the ship engine while maintaining the external dimensions The purpose is to provide a connection structure.

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

2 is a partial perspective view of a marine engine showing a turbocharger and a suction manifold connection structure of a marine engine according to an embodiment of the present invention;

Figure 3 is a front view showing the structure of the suction manifold side split pipe of the turbocharger and suction manifold pipe of the marine engine according to an embodiment of the present invention,

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

5 is a partial top plan view of FIG. 4 showing a shape of a first connector;

6 is a partial top plan view of FIG. 4 showing a shape of a second connector;

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

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

9 is a cross-sectional view taken along the line D-D of FIG. 3;

10 is a partial perspective view showing a modification of the structure of the second connecting portion of the split connecting pipe,

11 is a cross-sectional view showing a modification of the cross section of the tubular body of the turbocharger and the suction manifold connector;

FIG. 12 is a partial top plan view of FIG. 4 similar to FIG. 6 showing various modifications of the inlet shape of the second connection portion;

<Description of the symbols for the main parts of the drawings>

1: engine 2: cylinder block

3: cylinder head 4: cylinder head cover

5: suction manifold 10: ship engine

11: reducer 12: screw shaft

13: turbocharger

13 ': intake outlet

20: Turbocharger and Suction Manifold Connector (invented)

20 ': Turbocharger and suction manifold connectors (conventional)

21: tube 21 ': tube section

22: first connection portion 22a: flange through hole

22b: through-hole 23: second connection portion

23a: flange through hole 23b: through tube

23 ': second connection portion 30: fuel filter

31: fixing bracket 120,121,124,125: split connector

To achieve this purpose, the turbocharger and suction manifold connection structure of a marine engine according to an embodiment of the present invention has a cylinder block, a cylinder head and a cylinder head carver together with a turbocharger, and is sucked to one side of the cylinder head. In a marine engine provided with a screw shaft as a propulsion shaft via a reducer connected to a rear lower part of an engine on which a manifold is installed: The vessel engine facilitates disassembly / assembly of the cylinder head cover of the marine engine and maintains an external dimension. The turbocharger is installed at the rear upper portion of the ship engine so as to lower the height of the engine, and includes a turbocharger and a suction manifold connecting pipe surrounding the cylinder head from the intake manifold and connected to the intake outlet of the turbocharger. It is characterized in that the configuration.

The turbocharger and suction manifold connector may be composed of a plurality of split connectors to facilitate assembly, and the fuel filter may be horizontally disposed under the turbocharger and the suction manifold connector to further increase external dimensions. The turbocharger and the suction manifold connector are firmly fixed by being fixedly connected to the cylinder head as a cast product, and the fuel filter is interposed on the outer surface of the turbocharger and the suction manifold connector via a fixing bracket. It can be fixed.

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

1 shows a turbocharger and a suction manifold connection structure of a marine engine 10 according to an embodiment of the present invention as a side view of a suction manifold of a marine engine, and FIG.

1 and 2 in the turbocharger and the suction manifold connection structure of the marine engine according to an embodiment of the present invention, the turbocharger 13 is installed on the rear upper portion of the marine engine 10, the turbocharger and the suction manifold A fold connector 20 surrounds the cylinder head 3 from the intake manifold 5 and is connected to the intake outlet 13 ′ of the turbocharger 13.

As such, the turbocharger and the suction manifold connecting pipe 20 are formed so that they are not piped to the upper portion of the cylinder head cover 4 as in the prior art. It is easy to assemble, and further, it is possible to lower the height (H) of the ship engine 10 by the pipe height without increasing the external dimension so that the entire ship engine 10 becomes a compact structure.

In addition, although the turbocharger and the suction manifold connecting pipe 20 may be integrally formed in a N-shape, as shown in FIG. 2, the suction manifold-side split connecting pipe 120 and the turbocharger-side suction manifold side are divided. By being composed of two divided connecting pipes (120, 121) of the connecting pipe 121, it is possible to facilitate further assembly, disassembly and castability. That is, in Figure 2, the entire shape of the N-shape, the end of the turbocharger 13 to the intake outlet (13 ') in order to be formed in the form of the elbow so that the turbocharger and the suction manifold connector 20 is cast It is preferable to be divided in order to form a, and further, the assembly and disassembly of the parts of the turbocharger and the suction manifold connecting pipe 20 itself or in the vicinity thereof can be easily performed. In addition, although not shown in the ship engine 10 is provided with an intercooler, by configuring the split connecting pipe (120, 121; 124, 125), the intercooler can be interposed therebetween, the structure can be further simplified.

3 shows a structure of a suction manifold side split connection pipe 120 of a turbocharger and suction manifold connection pipe of a marine engine according to an embodiment of the present invention in detail as a front view.

The suction manifold side split connecting pipe 120 has a first connecting portion 22 connected to the suction manifold 5 and an intake outlet 13 of the turbocharger 13 as shown in a longitudinal cross-sectional view in FIG. 4. It has a second connecting portion 23 connected to the split connecting pipe 121 connected to '), between which forms a tubular body 21 having an intake passage 25 of a substantially rectangular shape, usually formed of a cast product It is preferable on the fixed structure of the fuel filter 30 mentioned later. The outer shape of the tubular body 21 is changed approximately according to the shape of the intake passage 25 therein, and the cross-sectional shape of the intake passage 25 therein is also shown in FIG. 11. Shapes are shown, but are not limited to such.

The first connecting portion 22 is a structure that is hermetically coupled to and fixed to the inlet of the suction manifold 5, and inlet of the suction manifold 5 is formed laterally in the drawing, and corresponds to the inlet formed laterally. It will have a shape, as shown in Figure 5 an example. However, the shape of the first connecting portion 22 is not limited thereto, and may be changed according to the position and shape of the inlet of the suction manifold 5.

3 to 5, a bolt is attached to the first connecting portion 22 of the suction manifold-side split connector 120 to secure the airtight action to fix the suction manifold-side split connector 120. A flange through hole 22a and a tube through hole 22b for interposing and fixing are formed. The flange through-hole 22a and the through-pipe 22b may also be formed differently according to the flange to the fixed tab structure of the inlet of the suction manifold 5. The structure of the tubular through-hole 22b is as shown in FIG. 7, and the intake passage 25 of the tubular body 21 is formed in both sides of the rib of the tubular through-hole 22b. The tubular through hole 22b may be omitted or the tube 21 in the tubular through hole 22b may be further enlarged to reduce the flow resistance of the intake air in the tubular through hole 22b.

6 shows the shape of the second connecting portion 23, and the shape of the second connecting portion 23 is divided into the turbocharger 13 side connecting pipe as shown as the second connecting portion 23 ′ in FIG. 12. Along with the 121, the shape of the inlet may be variously changed. The second connecting portion 23 is connected to the turbocharger side connecting pipe 121 via the flange through hole 23a, the pipe through hole 23b, a bolt, and the like. The structure of the flange through hole 23a and the tube through hole 23b may also be changed similarly to the structure of the flange through hole 22a and the tube through hole 22b described above.

In addition, the split structure of the split connecting pipe (120, 121), as shown in Figure 10 in addition to Figure 4, and may be divided, but not shown, may be divided in a diagonal direction.

As such, the turbocharger and the suction manifold connection pipe 20 are configured by the two connection pipes 120, 121; 124, 125, thereby further improving castability and assemblability.

In addition, although the fuel filter is conventionally installed vertically, the fuel filter as shown in Figs. 1, 3 and 9 in the present invention so as to facilitate assembly while preventing the fuel filter 30 from falling out. 30 is disposed in the lower portion of the suction manifold side split connecting pipe 120 of the turbocharger and the suction manifold connecting pipe 20, and the turbocharger and the suction manifold connecting pipe via the fixing bracket 31 ( 20 is fixed to the fixing tab 31a formed on the outer surface of the suction manifold side connecting pipe 120 via a bolt.

As such, the fuel filter 30 does not protrude so that the external dimension (width) of the entire ship engine 10 may be reduced, and the fuel filter 30 may be easily disassembled and assembled from the outside. .

According to the configuration and function of the turbocharger and the suction manifold connection structure of the marine engine according to the embodiment of the present invention described above, integral turbocharger and suction manifold connecting pipe 20 to the split connection without the need to install a separate pipe The configuration of the pipes 120, 121, 124, and 125 facilitates the assembly and disassembly of the cylinder head cover 4, and the compactness of the fuel filter can be achieved by lowering the height without increasing the external dimension (width and length). By placing the lower portion of the turbocharger and the suction manifold connection pipe 20 and fixing it to the turbocharger and the suction manifold connection pipe 20, the overall compactness of the fuel filter 30 can be improved and improved. It is configured such that it is effective.

Claims (4)

Engine (1) having a cylinder block (2), a cylinder head (3) and a cylinder head carver (4) together with a turbocharger (13), and a suction manifold (5) is installed on one side of the cylinder head (3). In the ship engine 10 is provided with a screw shaft 12 as a propulsion shaft via a reducer 11 connected to the rear lower portion of the: The turbocharger 13 is configured to facilitate the disassembly / assembly of the cylinder head cover 4 of the ship engine 10 and to lower the height H of the ship engine 10 while maintaining an external dimension. A turbocharger and intake manifold connection pipe installed at the rear upper portion of the (10) and surrounding the cylinder head (3) from the intake manifold (5) and connected to the intake outlet (13 ') of the turbocharger (13). Turbocharger and suction manifold connection structure of the marine engine, characterized in that comprises a (20). 2. The turbocharger and suction manifold of a marine engine according to claim 1, wherein the turbocharger and the suction manifold connection pipe 20 are composed of a plurality of split connection pipes 120, 121, 124, and 125 to facilitate assembly thereof. Connection structure. 2. The turbocharger and intake manifold connection structure of a marine engine according to claim 1, wherein the fuel filter (30) is horizontally disposed below the turbocharger and the intake manifold connector (20). 4. The turbocharger and suction manifold connector 20 is fixedly connected to the cylinder head 3 as a cast product, and the fuel filter 30 is connected to the turbocharger and suction manifold connector. 20) Turbocharger and suction manifold connection structure of a marine engine, characterized in that fixed to the outer surface via a fixing bracket (31).