Engine water-cooling exhaust head and motorboat adopting same

Abstract

The utility model discloses an engine water cooling exhaust head and a motorboat adopting the structure, which are applied to a four-cylinder engine and comprise a four-cylinder engine exhaust head, four air passages are arranged in the four-cylinder engine exhaust head, one ends of the four air passages are respectively connected with a cylinder body of the four-cylinder engine through four first air inlet pipes, and the other ends of the four air passages are respectively connected with four second air inlet pipes. One end of the four-cylinder engine exhaust head is connected with a four-cylinder engine water-cooling water outlet head, and one ends of the four air channels are gathered into one path and connected to the four-cylinder engine water-cooling water outlet head. The engine water-cooling exhaust funnel is suitable for an engine, the engine water-cooling exhaust funnel is of a double-layer flow channel structure, the inner layer is engine exhaust, the outer layer is a cooling water channel, cooling is provided for high-temperature exhaust of the inner layer, a system sprays high-temperature cooling water into the air channel at an outlet, and the exhaust is further cooled through vaporization of water. And the cooled exhaust gas can be safely exhausted through a common exhaust pipe, so that the heat dissipation speed can be increased, and the effect of protecting parts such as an exhaust port in the ship can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine exhaust heads, in particular to an engine water-cooled exhaust head and a motorboat adopting the structure. Background Art

[0002] Most existing engines use an exhaust system that is not cooled but externally air-cooled. If such an exhaust system is used on a small yacht (such as a motorboat), it is difficult to dissipate heat normally because the interior of the hull is a closed space, and the high temperature of the air pipe will damage the exhaust port and other components inside the boat. Therefore, a specially designed exhaust system is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects that if the engine exhaust system in the prior art is applied to a small yacht, it is difficult to dissipate heat normally due to the closed space inside the hull, and the high temperature of the air pipe will cause damage to the exhaust port and other components inside the boat. An engine water-cooled exhaust head and a motorboat using the structure are provided. The engine water-cooled exhaust pipe adopts a double-layer flow channel structure, wherein the inner layer is the engine exhaust and the outer layer is a cooling water channel, which provides cooling for the high-temperature exhaust gas in the inner layer. The system sprays high-temperature cooling water into the air channel at the outlet, and further cools the exhaust gas by vaporization of water. The cooled exhaust gas can then be safely discharged through a general exhaust pipe, which can not only improve the heat dissipation speed but also protect the exhaust port and other components inside the boat.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses an engine water-cooled exhaust head and a motorboat adopting the structure, which is applied to a four-cylinder engine and comprises a four-cylinder engine exhaust head, wherein four air passages are arranged inside the four-cylinder engine exhaust head, one end of the four air passages are respectively connected to the cylinder body of the four-cylinder engine through four first air inlet pipes, one end of the four-cylinder engine exhaust head is connected to a four-cylinder engine water-cooled water outlet head, and one end of the four air passages are gathered into one path and connected to the four-cylinder engine water-cooled water outlet head.

[0006] Preferably, a first water inlet pipe is arranged on the exhaust head of the four-cylinder engine below the end away from the water-cooling water outlet of the four-cylinder engine, and a first water outlet pipe is arranged on the exhaust head of the four-cylinder engine below and below the end close to the water-cooling water outlet of the four-cylinder engine. When the amount of water in the exhaust head of the four-cylinder engine is small, water is directly discharged through the first water outlet pipe below. When the amount of water in the exhaust head of the four-cylinder engine is large, water is discharged together through the first water outlet pipe located above, wherein the first water outlet pipe located above is connected to the water-cooling water outlet of the four-cylinder engine through a pipeline.

[0007] Preferably, the four-cylinder engine water-cooled water outlet head has an internal air passage connected to the four-cylinder engine exhaust head, one end of the four-cylinder engine water-cooled water outlet head is connected to the first cooled exhaust pipe via the first lower-level exhaust pipe connector, a first atomizing drainage channel is provided inside the four-cylinder engine water-cooled water outlet head, and a cavity is provided around the internal air passage of the four-cylinder engine water-cooled water outlet head. When in use, cooling water is introduced from the upper end, the cooling water is discharged from the first atomizing drainage channel of the four-cylinder engine water-cooled water outlet head, and mixed with the exhausted gas in the first cooled exhaust pipe.

[0008] The present application also discloses an engine water-cooled exhaust head, which is applied to a single-cylinder engine, including a single-cylinder engine exhaust head. The single-cylinder engine exhaust head adopts a C-shaped structure, and one end of the single-cylinder engine exhaust head is provided with a second intake pipe, and the other end is connected to a second cooled exhaust pipe through a second lower-level exhaust pipe connector.

[0009] Preferably, a second water inlet pipe is installed on the side of one end of the single-cylinder engine exhaust head close to the second air intake pipe, and a second drain pipe is installed on the side of the other end.

[0010] Preferably, a second atomizing drainage channel is provided in the second lower exhaust pipe connector, and the exhaust flow channel of the single-cylinder engine exhaust head is tightly connected with the exhaust port of the single-cylinder engine. When the single-cylinder engine is exhausted, the gas passes through the inside of the single-cylinder engine exhaust head, and finally enters the second cooled exhaust pipe through the second lower exhaust pipe connector. Since there is an external cavity in the front half of the exhaust flow channel inside the single-cylinder engine exhaust head, and a second water inlet pipe is arranged above the starting end of the exhaust flow channel, and a second drainage pipe is arranged at the end end of the exhaust flow channel, the "water channel" ends at the second lower exhaust pipe connector, and is discharged through the second atomizing drainage channel into the rear end second cooled exhaust pipe to mix with the exhaust gas.

[0011] Another object of the present application is to provide an application of any of the above-mentioned integrated consoles in a motorboat, specifically, installing the engine water-cooled exhaust head on the motorboat.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The engine water-cooled exhaust pipe in the present application adopts a double-layer flow channel structure, in which the inner layer is the engine exhaust and the outer layer is the cooling water channel, which provides cooling for the high-temperature exhaust gas in the inner layer. The system sprays high-temperature cooling water into the air channel at the outlet, and further cools the exhaust gas through the vaporization of water. The cooled exhaust gas can then be safely discharged through a general exhaust pipe, which can not only increase the heat dissipation speed but also protect components such as the exhaust port in the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1The structure of the exhaust head of a four-cylinder engine in the first embodiment of the present utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The structure of the exhaust head of a four-cylinder engine in the first embodiment of the present utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 This is a schematic cross-sectional structure diagram of an exhaust head of a four-cylinder engine in Embodiment 1 of the present utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of the exhaust head of a single-cylinder engine in Example 2 of the utility model.

[0018] Reference numerals: 101, exhaust head of four-cylinder engine; 102, water outlet head of water-cooled four-cylinder engine; 104, first air inlet pipe; 105, first water outlet pipe; 106, first water inlet pipe; 107, first lower exhaust pipe connector; 108, first exhaust pipe after cooling; 109, first atomization drainage channel;

[0019] 201, single-cylinder engine exhaust head; 202, second air intake pipe; 203, second water intake pipe; 204, second drainage pipe; 205, second lower exhaust pipe connector; 206, second post-cooling exhaust pipe; 207, second atomization drainage channel. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 -Attached Figure 4 , further illustrating the specific implementation of the utility model of an engine water-cooled exhaust head and a motorboat using the structure, which overcomes the defects of the prior art engine exhaust system if applied to a small yacht, because the interior of the hull is a closed space, it is difficult to dissipate heat normally, and the high temperature of the air pipe will damage the exhaust port and other components in the boat. The engine water-cooled exhaust pipe adopts a double-layer flow channel structure, wherein the inner layer is the engine exhaust, and the outer layer is the cooling water channel, which provides cooling for the inner layer high-temperature exhaust. The system sprays high-temperature cooling water into the air channel at the outlet, and further cools the exhaust through the vaporization of water. The cooled exhaust can then be safely discharged through a general exhaust pipe, which can both increase the speed of heat dissipation and protect the exhaust port and other components in the boat. The utility model of an engine water-cooled exhaust head and a motorboat using the structure are not limited to the description of the following embodiments.

[0021] Embodiment 1:

[0022] This embodiment provides a water-cooled exhaust head for an engine, such as Figure 1-3As shown, it is applied to a four-cylinder engine, including a four-cylinder engine exhaust head 101, four air passages are arranged inside the four-cylinder engine exhaust head 101, one end of the four air passages are connected to the cylinder body of the four-cylinder engine through four first intake pipes 104 respectively, one end of the four-cylinder engine exhaust head 101 is connected to a four-cylinder engine water-cooling outlet head 102, and one end of the four air passages are gathered into one path and connected to the four-cylinder engine water-cooling outlet head 102.

[0023] Preferably, a first water inlet pipe 106 is arranged on the exhaust head 101 of the four-cylinder engine below the end away from the water-cooled water outlet head 102 of the four-cylinder engine, and a first water outlet pipe 105 is arranged on the exhaust head 101 of the four-cylinder engine below and below the end close to the water-cooled water outlet head 102 of the four-cylinder engine. When the amount of water in the exhaust head 101 of the four-cylinder engine is small, the water is directly discharged through the first water outlet pipe 105 below. When the amount of water in the exhaust head 101 of the four-cylinder engine is large, the water is discharged together through the first water outlet pipe 105 located above, wherein the first water outlet pipe 105 located above is connected to the water-cooled water outlet head 102 of the four-cylinder engine through a pipeline.

[0024] Preferably, the four-cylinder engine water-cooled water outlet head 102 has an internal air passage connected to the four-cylinder engine exhaust head 101, one end of the four-cylinder engine water-cooled water outlet head 102 is connected to the first cooling exhaust pipe 108 through the first lower-level exhaust pipe connector 107, and a first atomizing drainage channel 109 is provided inside the four-cylinder engine water-cooled water outlet head 102. The four-cylinder engine water-cooled water outlet head 102 has a cavity around the internal air passage. When in use, cooling water is introduced from the upper end, and the cooling water is discharged from the first atomizing drainage channel 109 exiting the four-cylinder engine water-cooled water outlet head 102, and mixed with the exhaust gas in the first cooling exhaust pipe 108.

[0025] Embodiment 2:

[0026] This embodiment provides a water-cooled exhaust head for an engine, such as Figure 4 As shown, it is applied to a single-cylinder engine, including a single-cylinder engine exhaust head 201. The single-cylinder engine exhaust head 201 adopts a C-shaped structure. One end of the single-cylinder engine exhaust head 201 is provided with a second intake pipe 202, and the other end is connected to a second cooled exhaust pipe 206 through a second lower-level exhaust pipe connector 205.

[0027] Preferably, a second water inlet pipe 203 is installed on the side of one end of the single-cylinder engine exhaust head 201 close to the second air inlet pipe 202, and a second drain pipe 204 is installed on the side of the other end.

[0028] Preferably, a second atomizing drainage channel 207 is provided in the second lower exhaust pipe connector 205, and the exhaust flow channel of the single-cylinder engine exhaust head 201 is tightly connected with the exhaust port of the single-cylinder engine. When the single-cylinder engine is exhausted, the gas passes through the inside of the single-cylinder engine exhaust head 201, and finally enters the second cooled exhaust pipe 206 through the second lower exhaust pipe connector 205. Since there is an external cavity in the front half of the exhaust flow channel inside the single-cylinder engine exhaust head 201, and a second water inlet pipe 203 is arranged above the starting end of the exhaust flow channel, and a second drainage pipe 204 is arranged at the end end of the exhaust flow channel, the "water channel" ends at the second lower exhaust pipe connector 205, and is discharged through the second atomizing drainage channel 207 into the rear second cooled exhaust pipe 206 to mix with the exhaust gas.

[0029] Another object of the present application is to provide an application of any of the above-mentioned integrated consoles in a motorboat, specifically, installing the engine water-cooled exhaust head on the motorboat, which can greatly improve the heat dissipation effect of the motorboat engine.

[0030] By adopting the above technical solution:

[0031] The engine water-cooled exhaust pipe in the present application adopts a double-layer flow channel structure, in which the inner layer is the engine exhaust and the outer layer is the cooling water channel to provide cooling for the high-temperature exhaust gas in the inner layer. The system sprays high-temperature cooling water into the air channel at the outlet, and further cools the exhaust gas through the vaporization of water. The cooled exhaust gas can then be safely discharged through a general exhaust pipe.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An engine water-cooled exhaust head, which is applied to a four-cylinder engine, characterized in that: The invention comprises an exhaust head (101) of a four-cylinder engine, wherein four air passages are arranged inside the exhaust head (101), one end of the four air passages are respectively connected to the cylinder body of the four-cylinder engine through four first air inlet pipes (104), one end of the exhaust head (101) of the four-cylinder engine is connected to a water-cooling outlet head (102) of the four-cylinder engine, and one end of the four air passages are gathered into one path and connected to the water-cooling outlet head (102) of the four-cylinder engine.

2. The engine water-cooled exhaust head according to claim 1, characterized in that: A first water inlet pipe (106) is provided on the exhaust head (101) of the four-cylinder engine below an end away from a water-cooled outlet head (102) of the four-cylinder engine, and a first water outlet pipe (105) is provided on the exhaust head (101) of the four-cylinder engine below an end close to the water-cooled outlet head (102) of the four-cylinder engine and below the end.

3. The engine water-cooled exhaust header according to claim 1, characterized in that: The four-cylinder engine water-cooling water outlet head (102) has an internal air passage connected to the four-cylinder engine exhaust head (101); one end of the four-cylinder engine water-cooling water outlet head (102) is connected to a first post-cooling exhaust pipe (108) via a first lower-stage exhaust pipe connector (107); and a first atomizing drainage channel (109) is provided inside the four-cylinder engine water-cooling water outlet head (102).

4. An engine water-cooled exhaust head, which is applied to a single-cylinder engine, characterized in that: The invention comprises a single-cylinder engine exhaust head (201), wherein the single-cylinder engine exhaust head (201) adopts a C-shaped structure, wherein one end of the single-cylinder engine exhaust head (201) is provided with a second intake pipe (202), and the other end is connected to a second post-cooling exhaust pipe (206) via a second lower-stage exhaust pipe connector (205).

5. The engine water-cooled exhaust header according to claim 4, characterized in that: A second water inlet pipe (203) is installed on the side of one end of the single-cylinder engine exhaust head (201) close to the second air inlet pipe (202), and a second water discharge pipe (204) is installed on the side of the other end.

6. The engine water-cooled exhaust header according to claim 5, characterized in that: A second atomization drainage channel (207) is provided in the second lower-level exhaust pipe connector (205).

7. A motorboat using an engine water-cooled exhaust head as claimed in any one of claims 1 to 6, characterized in that: The engine water-cooled exhaust head is installed on the motorboat.

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