Diesel engine with heat dissipation and sound insulation effects

Abstract

The utility model relates to a diesel engine with heat dissipation and sound insulation effects, which comprises a shock absorption base, an engine main body is mounted on the upper surface of the shock absorption base, one end of the shock absorption base is fixedly connected with an air bellow, a cavity is formed in the air bellow, and the air bellow is fixedly connected with the engine main body. The side, away from the engine body, of the air bellow is fixedly connected with an air cooling structure used for conveying cold air into the cavity, and due to the fact that the total exhaust flow of the multiple first air blowing holes is smaller than the air inlet flow of the air suction pipe, part of cold air in the cavity can be exhausted through the first air blowing holes to be directly blown; the other part of cold air enters the multiple air pipes along the air conveying pipeline, is exhausted through the multiple second air blowing holes formed in the sides, close to the engine body, of the air pipes, acts on gaps formed among the multiple components of the engine body, takes out heat in the gaps, and is matched with air exhausted through the first air blowing holes to exhaust the heat through the heat dissipation holes; and the heat dissipation efficiency of the engine main body is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of engine cooling technology, specifically relating to a diesel engine with heat dissipation and sound insulation effects. Background Technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. A diesel engine is an engine that burns diesel fuel to obtain energy and is also called a Diesel engine.

[0003] Diesel engines generate a lot of heat when they are running. To improve the service life of the engine, the current method is to install an air-cooled heat dissipation device on one side of the engine. However, due to the complex structure of the engine and the large number of tiny gaps between adjacent components, the cold air blown out by the air-cooling device may be blocked by other components and cannot be blown directly into the tiny gaps. As a result, the heat between adjacent components cannot be dissipated in time, which greatly reduces the heat dissipation efficiency of the diesel engine. Utility Model Content

[0004] The purpose of this utility model is to provide a diesel engine with a simple structure and reasonable design that has heat dissipation and sound insulation effects in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A diesel engine with heat dissipation and sound insulation effects includes a shock-absorbing base, an engine body mounted on the upper surface of the shock-absorbing base, a wind box fixedly connected to one end of the shock-absorbing base, a cavity formed inside the wind box, a wind-cooling structure for supplying cold air into the cavity fixedly connected to the side of the wind box away from the engine body, a plurality of first air-blowing holes annularly opened around the engine body on the side of the wind box near the engine body, a U-shaped air-transmitting pipe fitted above the end of the engine body near the wind box, both ends of the air-transmitting pipe penetrating the sidewall of the wind box and communicating with the interior of the cavity, a plurality of air ducts annularly distributed around the engine body fixedly connected to the middle section of the air-transmitting pipe, the end of the air duct near the air-transmitting pipe communicating with the interior of the air-transmitting pipe, a plurality of sets of second air-blowing holes linearly distributed along the length of the engine body opened on the sidewall of the air duct near the engine body, and a sound insulation cover covering the top of the engine body.

[0007] As a further optimization of this utility model, a sealing end plate is fixedly connected to the end of the shock-absorbing base away from the air box, and the sealing end plate is provided with heat dissipation holes that communicate with the external environment.

[0008] As a further optimization of this utility model, the air-cooled structure includes an exhaust pipe fixedly installed on the outer wall of the air box, a motor is installed inside the exhaust pipe, and an exhaust fan is fixedly installed at the output end of the motor.

[0009] As a further optimization of this utility model, the diameter of the motor is smaller than the inner diameter of the suction pipe, the motor is fixed to the inner wall of the suction pipe by a connecting plate, and a filter screen is fixedly installed inside the free end of the suction pipe.

[0010] As a further optimization of this utility model, the total exhaust flow of the plurality of first air blowing holes opened on the inner side wall of the air box is less than the air intake flow of the air extraction pipe.

[0011] As a further optimization of this utility model, the soundproof cover has a double-layer structure, with multiple sets of ribs arranged in a crisscross pattern between the two layers of the soundproof cover, and a receiving cavity is formed between two adjacent ribs, which is filled with soundproof cotton.

[0012] The beneficial effects of this utility model are as follows: Since the total exhaust flow of the multiple first air blowing holes is less than the intake flow of the air extraction pipe, part of the cold air in the cavity will be discharged through the first air blowing holes for direct blowing, and another part of the cold air will enter the multiple air pipes along the air supply pipe and be discharged through the multiple second air blowing holes opened on the side of the air pipes close to the engine body. It acts on the gaps formed between the multiple components of the engine body, carrying out the heat in the gaps, and together with the air discharged from the first air blowing holes, the heat is discharged through the heat dissipation holes, which greatly improves the heat dissipation efficiency of the engine body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure of the engine body, air box, and sealing end plate of this utility model;

[0014] Figure 2 This is an installation diagram of the air-cooled structure of this utility model;

[0015] Figure 3 This is a utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0016] Figure 4 This is a schematic diagram of the installation structure of the soundproof cover, ribs, and soundproof cotton of this utility model.

[0017] In the diagram: 1. Shock-absorbing base; 2. Engine body; 3. Sealing end plate; 4. Heat dissipation hole; 5. Air box; 6. Cavity; 7. First air blowing hole; 8. Air extraction pipe; 9. Motor; 10. Exhaust fan; 11. Air supply pipe; 12. Air duct; 13. Second air blowing hole; 14. Sound insulation cover; 15. Rib plate; 16. Receiving cavity; 17. Sound insulation cotton. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 - Figure 4 As shown, a diesel engine with heat dissipation and sound insulation effects includes a shock-absorbing base 1, on the upper surface of the shock-absorbing base 1, and an engine body 2 is mounted on the upper surface of the shock-absorbing base 1. The engine body 2 is mounted on the shock-absorbing base 1 so that the engine body 2 can be damped by the shock-absorbing base 1 when it is working. This not only avoids the engine body 2 from being affected by vibration and thus the stability of the connection between the various components, but also reduces the noise generated by the engine body 2 when it is working by the shock-absorbing base 1.

[0021] A sealing end plate 3 is fixedly connected to the end of the shock-absorbing base 1 away from the air box 5. The sealing end plate 3 has a heat dissipation hole 4 that communicates with the external environment. The heat dissipation hole 4 on the sealing end plate 3 is used for heat dissipation, so that the heat generated by the engine body 2 during operation can be discharged through the heat dissipation hole 4, so as to avoid the engine body 2 being in a high-temperature working environment for a long time, which may affect the service life of the engine body 2.

[0022] One end of the shock-absorbing base 1 is fixedly connected to a wind box 5, and a cavity 6 is formed inside the wind box 5. A wind-cooling structure for supplying cold air into the cavity 6 is fixedly connected to the side of the wind box 5 away from the engine body 2. The wind-cooling structure includes an air extraction pipe 8 fixedly installed on the outer wall of the wind box 5. A motor 9 is installed inside the air extraction pipe 8. The diameter of the motor 9 is smaller than the inner diameter of the air extraction pipe 8, so that an air intake channel is formed between the periphery of the motor 9 and the inner wall of the air extraction pipe 8. The periphery of the motor 9 is fixed to the inner wall of the air extraction pipe 8 through a connecting plate. A filter screen is fixedly installed inside the free end of the air extraction pipe 8. The filter screen is used to filter the air drawn into the wind box 5 and to minimize the intake of large particulate impurities in the air into the air extraction pipe 8.

[0023] An exhaust fan 10 is fixedly installed at the output end of the motor 9. When the motor 9 installed in the exhaust pipe 8 is started, the motor 9 can drive the exhaust fan 10 to rotate at high speed. Through negative pressure, cold air from the external environment is drawn into the air box 5. The air box 5 has multiple first air blowing holes 7 arranged in a ring around the engine body 2 on the side close to the engine body 2. When the cold air is delivered into the air box 5, some of the cold air can be blown out through the first air blowing holes 7 to blow directly onto the end of the engine body 2, thereby removing the heat generated by the engine body 2 during operation and achieving heat dissipation of the engine body 2.

[0024] A U-shaped air supply pipe 11 is fitted above the engine body 2 near the air box 5. Both ends of the air supply pipe 11 penetrate the side wall of the air box 5 and communicate with the interior of the cavity 6. Multiple air ducts 12 are fixedly connected to the middle section of the air supply pipe 11, arranged in a ring around the engine body 2. The end of each air duct 12 near the air supply pipe 11 communicates with the interior of the air supply pipe 11. Multiple sets of second air vents 13 are linearly distributed along the length of the engine body 2 on the side wall of the air duct 12 near the engine body 2. Due to the multiple second air vents 13 on the inner wall of the air box 5... The total exhaust flow of the first air blower 7 is less than the intake flow of the exhaust pipe 8. Therefore, the cold air that cannot be discharged from the cavity 6 through the first air blower 7 in time can enter multiple air pipes 12 along the air supply pipe 11 under the action of air pressure, and be discharged through multiple second air blowers 13 opened on the side of the air pipe 12 close to the engine body 2. It acts on the gap formed between multiple components of the engine body 2, carries out the heat in the gap, and, together with the air discharged from the first air blower 7, discharges the heat through the heat dissipation hole 4, which greatly improves the heat dissipation efficiency of the engine body 2.

[0025] A soundproof cover 14 is also provided on top of the engine body 2. The soundproof cover 14 has a double-layer structure. Between the two layers of the soundproof cover 14, there are multiple sets of ribs 15 arranged in a crisscross pattern. An accommodating cavity 16 is formed between two adjacent ribs 15. The accommodating cavity 16 is filled with sound-absorbing cotton 17. The soundproof cover 14 is set as a double-layer structure, and the crisscross ribs 15 between the two layers of the soundproof cover 14 are used to connect the two layers of the soundproof cover 14 to form an integral structure. The sound-absorbing cotton 17 is used to absorb sound waves through the porous structure of the sound-absorbing cotton 17 to achieve a sound insulation effect. The sound-absorbing cotton 17 is placed in the accommodating cavity 16 formed between adjacent ribs 15 to limit the sound-absorbing cotton 17 by the ribs 15, so as to avoid the sound-absorbing cotton 17 from being displaced due to vibration, resulting in uneven distribution of the sound-absorbing cotton 17 in various parts, which would affect the sound insulation performance of the soundproof cover 14.

[0026] It should be noted that this type of diesel engine with heat dissipation and sound insulation effect, when in use, starts the motor 9 installed in the exhaust pipe 8. The motor 9 drives the exhaust fan 10 to rotate at high speed, drawing cold air from the external environment into the air box 5 through negative pressure. The air box 5 has multiple first air blowing holes 7 arranged in a ring around the engine body 2 on the side near the engine body 2. A U-shaped air supply pipe 11 with its end connected to the inside of the air box 5 is fitted above the end of the engine body 2 near the air box 5. Multiple air ducts 12 arranged in a ring around the engine body 2 are fixedly connected to the middle section of the air supply pipe 11. The end of the air duct 12 near the air supply pipe 11 is connected to the inside of the air supply pipe 11. Multiple sets of air ducts 12 are opened on the side wall of the air duct 12 near the engine body 2. The second air vents 13 are linearly distributed along the length of the engine body 2. Since the total exhaust flow of the multiple first air vents 7 opened on the inner wall of the air box 5 is less than the intake flow of the exhaust pipe 8, a portion of the cold air in the cavity 6 will be discharged through the first air vents 7 and blow directly onto the engine body 2 along the length of the engine body 2. Another portion of the cold air will enter multiple air ducts 12 along the air supply pipe 11 and be discharged through the multiple second air vents 13 opened on the side of the air duct 12 close to the engine body 2. This acts on the gaps formed between multiple components of the engine body 2, carrying out the heat in the gaps. Together with the air discharged from the first air vents 7, the heat is discharged through the heat dissipation holes 4, which greatly improves the heat dissipation efficiency of the engine body 2.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A diesel engine having a heat-dissipating and sound-insulating effect, comprising a shock-absorbing base (1) on the upper surface of which an engine main body (2) is mounted, characterized in that: The shock-absorbing base (1) is fixedly connected with a wind box (5) at one end, a cavity (6) is formed in the wind box (5), a wind cooling structure for conveying cold air into the cavity (6) is fixedly connected to the side of the wind box (5) away from the engine body (2), a plurality of first air blowing holes (7) are annularly formed on the side of the wind box (5) close to the engine body (2), a gas conveying pipe (11) in a U-shaped structure is sleeved on the top of the engine body (2) close to one end of the wind box (5), both ends of the gas conveying pipe (11) penetrate the side wall of the wind box (5) and communicate with the inside of the cavity (6), a plurality of air pipes (12) annularly distributed around the engine body (2) are fixedly connected to the middle section of the gas conveying pipe (11), one end of the air pipe (12) close to the gas conveying pipe (11) communicates with the inside of the gas conveying pipe (11), a plurality of groups of second air blowing holes (13) linearly distributed along the length direction of the engine body (2) are formed on the side wall of the air pipe (12) close to the engine body (2), and a soundproof cover (14) is further sleeved on the top of the engine body (2).

2. The diesel engine with heat-dissipating and sound-insulating effects according to claim 1, characterized in that: The shock-absorbing base (1) is fixedly connected with a sealing end plate (3) away from the wind box (5), and a heat dissipation hole (4) communicating with the external environment is formed in the sealing end plate (3).

3. The diesel engine with heat-dissipating and sound-insulating effects according to claim 1, characterized in that: The wind cooling structure comprises an air suction pipe (8) fixedly installed on the outer side wall of the wind box (5), a motor (9) is arranged in the air suction pipe (8), and an air suction fan (10) is fixedly installed on the output end of the motor (9).

4. The diesel engine with heat radiation and sound insulation effect according to claim 3, characterized in that: The diameter of the motor (9) is smaller than the inner diameter of the air suction pipe (8), the motor (9) is fixedly connected to the inner wall of the air suction pipe (8) through a connecting plate, and a filter screen is fixedly installed in the free end of the air suction pipe (8).

5. The diesel engine with heat radiation and sound insulation effect according to claim 4, characterized in that: The total exhaust flow of the plurality of first air blowing holes (7) formed in the inner side wall of the wind box (5) is smaller than the air inlet flow of the air suction pipe (8).

6. The diesel engine with heat radiation and sound insulation effect according to claim 1, characterized in that: The soundproof cover (14) is a double-layer structure, a plurality of groups of rib plates (15) longitudinally and transversely arranged are arranged between the two layers of soundproof covers (14), an accommodating cavity (16) is formed between two adjacent rib plates (15), and soundproof cotton (17) is filled in the accommodating cavity (16).

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