Diesel engine propulsion system for optimizing hydrodynamic performance

Abstract

The invention discloses a diesel engine propulsion system capable of optimizing hydrodynamic performance, which relates to the technical field of diesel engines, and comprises a conveying unit, a hydraulic unit, a hydraulic unit and a hydraulic unit, the diesel engine unit comprises a diesel engine body arranged at the bottom of the conveying part, the propelling unit comprises an air increasing assembly arranged at the output end of the diesel engine body, a paddle assembly arranged on the air increasing assembly and a protective shell assembly arranged on the outer diameter of the paddle assembly, and the protective shell assembly is connected with the diesel engine body. The high-temperature gas generated by the diesel engine is utilized, so that the power performance is remarkably improved, the high-temperature gas drives the gas increasing assembly and the paddle assembly to rotate, additional thrust and normal thrust of the paddle are superposed, the comprehensive thrust of the steamship is greatly enhanced, the navigational speed and acceleration performance are improved, and the steamship has more advantages under complex sea conditions or when the steamship needs to sail rapidly.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine propulsion, and in particular to a diesel engine propulsion system for optimizing hydrodynamic performance. Background Art

[0002] Diesel engines can be divided into medium-speed diesel engines and low-speed diesel engines according to the speed. Most low-speed diesel engines are two-stroke engines, most medium-speed diesel engines are four-stroke engines, and high-speed diesel engines have both. High-power two-stroke low-speed diesel engines are widely used in large ocean-going ships such as bulk carriers, tankers, and container ships as prime movers in propulsion.

[0003] At present, in order to improve the propeller propulsion efficiency, technicians generally consider further reducing the speed of the diesel engine. However, when the speed decreases, the power of the diesel engine also decreases. Therefore, the required power requirement cannot be met. If the power remains unchanged and the speed is reduced, the stroke of the diesel engine can only be lengthened. In this way, the diesel engine is large in size and heavy in weight, the vibration increases, the manufacturing difficulty is great, and the cost is very high. This becomes an energy-consuming product in the manufacturing process and is not conducive to energy-saving and environmentally friendly manufacturing. Summary of the invention

[0004] In view of the above-mentioned problems existing in the existing diesel engine propulsion system for optimizing hydrodynamic performance, the present invention is proposed.

[0005] Therefore, the present invention provides a diesel engine propulsion system that optimizes hydrodynamic performance, and its purpose is to solve the problem that the stroke of the diesel engine is lengthened, which makes the diesel engine large in size, heavy in weight, increases vibration, is difficult to manufacture, and has a high cost. This makes the diesel engine an energy-consuming product in the manufacturing process and is not conducive to energy-saving and environmentally friendly manufacturing.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a conveying unit, comprising a conveying member, and an oil tank member arranged on the conveying member;

[0007] The diesel engine unit comprises a diesel engine body arranged at the bottom of the conveying member, and

[0008] The propulsion unit includes an air-increasing assembly arranged at the output end of the diesel engine body, a paddle assembly arranged on the air-increasing assembly, and a casing assembly arranged on the outer diameter of the paddle assembly, and the casing assembly is connected to the diesel engine body.

[0009] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, the casing assembly includes an outer shell arranged on the diesel engine body, a support rod arranged inside the outer shell, and a fixing ring arranged on the support rod, and the fixing ring is connected to the air injection assembly.

[0010] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, the air-increasing assembly includes a transmission rod arranged at the output end of the diesel engine body, a first-stage propulsion fan arranged on the outer diameter of the transmission rod, an air-increasing impeller arranged at the output end of the transmission rod, and a pushing screw arranged at the other end of the air-increasing impeller, and the other end of the pushing screw is connected to the paddle assembly.

[0011] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, an arc connector 1 is provided at one end of the diesel engine body, an air guide is provided inside the arc connector 1, and the air guide cooperates with the transmission rod.

[0012] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, a guide rod is arranged on the outer diameter of the arc connecting member 1, a guide plate is arranged on the outer diameter of the arc connecting member 1, a double-layer rotating shaft is arranged on the outer diameter of the arc connecting member 1, and the double-layer rotating shaft is connected to the shield assembly.

[0013] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, a pneumatic component is arranged inside the arc connecting member 1, and the pneumatic component is rotationally matched with the pushing screw.

[0014] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, the paddle assembly includes an arc connector 2 arranged on the arc connector 1, a transmission member 1 arranged inside the arc connector 2, a protective shell arranged on the transmission member 1 and the transmission member 1, a transmission member 2 rotatably arranged at the other end of the protective shell, and a screw rod arranged at the other end of the transmission member 2.

[0015] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, a paddle is provided on the outer diameter of the screw rod, and the paddle is rotatably connected to the outer shell.

[0016] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, a rotating shaft is provided for rotation inside the casing, and the rotating shaft is connected to the paddle and the pushing screw.

[0017] As a preferred solution of the diesel engine propulsion system for optimizing hydrodynamic performance described in the present invention, a pushing screw is rotatably arranged inside the arc connecting member 2, and the pushing screw is connected to the transmission member 1.

[0018] The beneficial effects of the present invention are as follows: by utilizing the high-temperature gas generated by the diesel engine, a significant improvement in power performance is achieved. The high-temperature gas drives the air injection assembly and the paddle assembly to rotate, forming an additional thrust that is superimposed on the normal thrust of the paddle, greatly enhancing the comprehensive thrust of the ship, improving the speed and acceleration performance, and making the ship more advantageous in complex sea conditions or when fast navigation is required. At the same time, power transmission is optimized, energy loss is reduced, and propulsion system efficiency is improved. The vibration caused by the lengthened stroke of the diesel engine is effectively reduced, making the ship sail more smoothly, improving comfort and equipment reliability, and enhancing navigation stability. At the same time, the structural design is simplified, the weight burden is reduced, and the diesel engine production is more efficient and economical, the service life is extended, and the maintenance cost is reduced. The situation that the lengthened stroke of the diesel engine causes the diesel engine to be large in size and heavy in weight, increases vibration, is difficult to manufacture, and has high cost is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 Schematic diagram of the overall structure of the diesel engine propulsion system for optimizing hydrodynamic performance of the present invention.

[0021] Figure 2 Schematic diagram of the internal structure of the diesel engine propulsion system for optimizing hydrodynamic performance of the present invention.

[0022] Figure 3 Diesel engine propulsion system for optimizing hydrodynamic performance of the present invention Figure 2 An enlarged schematic diagram of point A.

[0023] Figure 4 This is a schematic diagram of the internal cross-sectional structure of a diesel engine propulsion system for optimizing hydrodynamic performance according to the present invention.

[0024] Figure 5 Diesel engine propulsion system for optimizing hydrodynamic performance of the present invention Figure 4 An enlarged schematic diagram of point B.

[0025] Figure 6 Diesel engine propulsion system for optimizing hydrodynamic performance of the present invention Figure 4 Enlarged schematic diagram of point C.

[0026] Figure 7 A schematic cross-sectional view of a propulsion assembly of a diesel engine propulsion system for optimizing hydrodynamic performance according to the present invention.

[0027] Figure 8Diesel engine propulsion system for optimizing hydrodynamic performance of the present invention Figure 7 An enlarged schematic diagram of point D.

[0028] Fig. 9 Schematic diagram of the explosion structure of the diesel engine propulsion system for optimizing hydrodynamic performance of the present invention.

[0029] Fig.10 Diesel engine propulsion system for optimizing hydrodynamic performance of the present invention Fig. 9 Enlarged structural diagram at E.

[0030] Description of reference numerals: 100, conveying unit; 101, conveying member; 102, fuel tank member; 200, diesel engine unit; 201, diesel engine body; 300, propulsion unit; 301, shell assembly; 3011, shell; 3012, support rod; 3013, fixing ring; 302, air-increasing assembly; 3021, arc connecting member 1; 30211, guide rod; 30212, guide plate; 30213, double-layer rotating shaft; 302 2. Transmission rod; 3023. First-stage propulsion fan; 3024. Second-stage propulsion fan; 3025. Air-increasing impeller; 3026. Trapezoidal air-increasing shell; 3027. Air guide; 3028. Propelling screw; 3029. Air pressure part; 303. Paddle assembly; 3031. Arc connecting part 2; 3032. Transmission part 1; 3033. Casing; 3034. Rotating shaft; 3035. Transmission part 2; 3036. Screw rod; 3037. Paddle. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Example 1, reference Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a diesel engine propulsion system for optimizing hydrodynamic performance. The device includes: a delivery unit 100, a diesel engine unit 200, and a propulsion unit 300.

[0033] The conveying unit 100 includes a conveying member 101 and an oil tank member 102 disposed on the conveying member 101. When the ship is sailing, oil is added to the oil tank member 102. After the addition is completed, when the diesel engine body 201 is working, the conveying member 101 conveys the oil in the oil tank member 102 to the diesel engine body 201, thereby ensuring the integrity and normal operation of the diesel engine body 201.

[0034] The diesel engine unit 200 includes a diesel engine body 201 disposed at the bottom of the conveying member 101. During the voyage of the ship, the conveying member 101 conveys the diesel in the fuel tank 102 to the diesel engine body 201 to ensure the normal operation of the diesel engine body 201, so that the diesel engine body 201 can drive the air boosting assembly 302 and the paddle assembly 303 in the hull assembly 301 to generate power, thereby enabling the ship to sail.

[0035] The propulsion unit 300 includes an air-increasing assembly 302 disposed at the output end of the diesel engine body 201, a paddle assembly 303 disposed on the air-increasing assembly 302, and a shield assembly 301 disposed on the outer diameter of the paddle assembly 303, and the shield assembly 301 is connected to the diesel engine body 201. When the ship is sailing, after the conveying member 101 conveys the diesel in the fuel tank member 102 to the diesel engine body 201, the diesel engine body 201 starts to work normally to drive the air-increasing assembly 302. , so that the air-increasing assembly 302 and the paddle assembly 303 rotate with the paddle 3037 inside the paddle assembly 303, thereby generating power for the ship and making the ship move. In addition, through the cooperation of the air-increasing assembly 302 and the paddle assembly 303, a large amount of hot gas generated by the power generated inside the diesel engine body 201 is transported to the inside of the casing assembly 301, and the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 inside the air-increasing assembly 302 enhance the transmission rod 302. 2 rotation speed, and while the hot gas generated by the diesel engine body 201 is transported to the inside of the casing assembly 301 and the air-increasing assembly 302, the air-increasing impeller 3025 and the pushing screw 3028 in the air-increasing assembly 302 are rotated by the gas inside the air-increasing assembly 302 to generate power, and as more gas is transported inside the air-increasing assembly 302 and the paddle assembly 303, the air-increasing assembly 302 and the paddle assembly 303 cooperate with the transmission rod 3022 and the screw rod 3036 to rotate with the paddle assembly 303. The paddle 3037 rotates together, so that not only the paddle 3037 rotates under the normal drive of the diesel engine body 201, but also the air increase component 302 and the paddle component 303 rotate to generate a propulsion force by guiding and linking the hot air generated inside the diesel engine body 201, and cooperate with the paddle 3037 to ensure the navigation of the ship. The high-temperature gas drives the air increase component 302 and the paddle component 303 to rotate, forming an additional thrust that is superimposed on the normal thrust of the paddle, thereby greatly enhancing the comprehensive thrust of the ship.

[0036] During use, when the ship is sailing, after the conveying member 101 conveys the diesel in the fuel tank member 102 to the diesel engine body 201, the diesel engine body 201 starts to work normally to drive the air-increasing assembly 302, so that the air-increasing assembly 302 and the paddle assembly 303 rotate with the paddle 3037 in the paddle assembly 303, thereby generating power for the ship and moving the ship. In addition, through the cooperation of the air-increasing assembly 302 and the paddle assembly 303, a large amount of hot gas generated by the power generated inside the diesel engine body 201 is conveyed to the inside of the shell assembly 301, and the rotation speed of the transmission rod 3022 is enhanced by the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 inside the air-increasing assembly 302. At the same time, the hot gas generated by the diesel engine body 201 is conveyed to the inside of the shell assembly 301 and the air-increasing assembly 302, the air-increasing impeller inside the air-increasing assembly 302 rotates. 3025 and the push screw 3028 are rotated by the gas rushed into the air-increasing component 302 to generate power, and as more gas is transported inside the air-increasing component 302 and the paddle component 303, the air-increasing component 302 and the paddle component 303 cooperate with the transmission rod 3022 and the screw rod 3036 to rotate together with the paddle 3037, so that not only the paddle 3037 rotates under the normal drive of the diesel engine body 201, but also the air-increasing component 302 and the paddle component 303 rotate to generate driving force through the hot air generated inside the guide and linkage diesel engine body 201, and cooperate with the paddle 3037 to work to ensure the navigation of the ship, and the high-temperature gas drives the air-increasing component 302 and the paddle component 303 to rotate, forming additional thrust and superposition of the normal thrust of the paddle, greatly enhancing the comprehensive thrust of the ship, improving the speed and acceleration performance, and making the ship more advantageous in complex sea conditions or when fast navigation is required.

[0037] Example 2, reference Figure 1 - Figure 7, which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the casing assembly 301 includes a shell 3011 arranged on the diesel engine body 201, a support rod 3012 arranged inside the shell 3011, and a fixing ring 3013 arranged on the support rod 3012, and the fixing ring 3013 is connected to the air-increasing assembly 302, and the air-increasing assembly 302 includes a transmission rod 3022 arranged at the output end of the diesel engine body 201, and a first-stage push fan 3023 arranged on the outer diameter of the transmission rod 3022. , an air-increasing impeller 3025 arranged at the output end of the transmission rod 3022, and a pushing screw 3028 arranged at the other end of the air-increasing impeller 3025, and the other end of the pushing screw 3028 is connected to the paddle assembly 303. When the diesel engine body 201 is working, the transmission rod 3022 rotates together with the diesel engine body 201, so that the transmission rod 3022 rotates with the pushing screw 3028, the first-stage pushing fan 3023, the screw rod 3036 and the paddle 3037, so that the ship can move normally. During navigation, while the diesel engine body 201 is working, a large amount of high-temperature gas is generated inside the diesel engine body 201 due to the combustion of diesel, and the gas is transported to the inside of the outer shell 3011 and the arc connecting piece 3021 through the diesel engine body 201. Because a large amount of high-temperature gas generated inside the diesel engine body 201 rushes into the inside of the outer shell 3011 and the arc connecting piece 3021, the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 inside the arc connecting piece 3021 and the air boost runner 3023 are driven by the diesel engine body 201, and the second-stage propulsion fan 3024 and the air boost runner 3024 are driven by the diesel engine body 201. 025 all start to rotate rapidly on the outer diameter of the transmission rod 3022 under the impact of the gas and its own gas diversion, and generate a certain airflow driving force under the rotation of the first-stage propulsion fan 3023, the second-stage propulsion fan 3024 and the air-increasing impeller 3025, and these generated airflow driving forces impact one end of the inner shell 3011 together with the gas generated inside the diesel engine body 201, so that it can rotate in coordination with the paddle 3037, and at the same time, together with the paddle 3037, the ship generates propulsion for navigation.

[0038] Compared with the first embodiment, further, an arc connecting piece 3021 is provided at one end of the diesel engine body 201, an air guide piece 3027 is provided inside the arc connecting piece 3021, and the air guide piece 3027 cooperates with the transmission rod 3022, a guide rod 30211 is provided on the outer diameter of the arc connecting piece 3021, a guide plate 30212 is provided on the outer diameter of the arc connecting piece 3021, a double-layer rotating shaft 30213 is provided on the outer diameter of the arc connecting piece 3021, and the double-layer rotating shaft 30213 is connected to the shell assembly 301, and a pneumatic piece 3029 is provided inside the arc connecting piece 3021, and the pneumatic piece 3029 is connected to the push screw 3028. In coordination with rotation, when the gas inside the arc connecting piece 3021 impacts the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 and the air boost impeller 3025 to rotate and generate propulsion, the propulsion screw 3028 connected to the transmission rod 3022 also rotates inside the pneumatic piece 3029. During the rotation of the propulsion screw 3028, the high-temperature gas inside the arc connecting piece 3021 is also rotated and driven into the pneumatic piece 3029, squeezing the gas inside the pneumatic piece 3029, thereby accelerating the flow speed of the gas inside the arc connecting piece 3021 and making the transmission piece 3032 rotate faster, thereby once again enhancing the propulsion force of the ship.

[0039] During use, when the diesel engine body 201 is working, the transmission rod 3022 rotates with the diesel engine body 201, so that the transmission rod 3022 rotates with the push screw 3028, the first-stage push fan 3023, the screw rod 3036 and the paddle 3037, so that the ship can sail normally. While the diesel engine body 201 is working, a large amount of high-temperature gas is generated inside the diesel engine body 201 due to the combustion of diesel. These gases are transported to the inside of the outer shell 3011 and the arc connector 3021 through the diesel engine body 201. Because a large amount of high-temperature gas generated inside the diesel engine body 201 rushes into the inside of the outer shell 3011 and the arc connector 3021, the first-stage push fan 3023 and the second-stage push fan 3024 and the air-increasing runner 3025 inside the arc connector 3021 all start to rotate rapidly on the outer diameter of the transmission rod 3022 under the impact of the gas and its own gas diversion, and the first-stage push fan 3023, the second-stage push fan 3024 and the air-increasing runner 3025 are rotated at the outer diameter of the transmission rod 3022. The rotation of the fan 3024 and the air booster 3025 generates a certain amount of airflow driving force, and the airflow driving force generated by the diesel engine body 201 impacts one end of the inner part of the housing 3011 together with the gas generated inside the diesel engine body 201, so that it can rotate with the paddle 3037, and at the same time, it cooperates with the paddle 3037 to generate driving force for the ship to sail. The gas inside the arc connecting piece 3021 impacts the first-stage driving fan 3023 and the second-stage driving fan 3024 and the air booster 3025. When the rotation generates driving force, the pushing screw 3028 connected to the transmission rod 3022 also rotates inside the pneumatic part 3029. During the rotation of the pushing screw 3028, the high-temperature gas inside the arc connecting part 3021 is also rotated and driven into the pneumatic part 3029, squeezing the gas inside the pneumatic part 3029, thereby accelerating the flow speed of the gas inside the arc connecting part 3021 and making the transmission part 3032 rotate faster, thereby once again enhancing the driving force of the ship.

[0040] The remaining structures are the same as those of Example 1.

[0041] Example 3, reference Figure 1 - Fig.10, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the paddle assembly 303 includes an arc connecting member 2 3031 arranged on the arc connecting member 1 3021, a transmission member 1 3032 arranged inside the arc connecting member 2 3031, a protective shell 3033 arranged on the transmission member 1 3032, a transmission member 2 3035 rotatably arranged at the other end of the protective shell 3033, and a spiral rod 3036 arranged at the other end of the transmission member 2 3035, the spiral rod The outer diameter of 3036 is provided with a paddle 3037, and the paddle 3037 is rotatably connected to the outer shell 3011. The inner rotation of the protective shell 3033 is provided with a rotating shaft 3034, and the rotating shaft 3034 is connected to the paddle 3037 and the push screw 3028. The inner rotation of the arc connecting member 2 3031 is provided with a push screw 3028, and the push screw 3028 is connected to the transmission member 1 3032. When the diesel engine body 201 drives the transmission rod 3022 and the push screw 3028 to rotate, the protective shell 3033 and The transmission member 3032 and the screw rod 3036 also start to rotate with the oar 3037 to generate a driving force to move the ship, and the diesel engine body 201 transmits the high-temperature hot air generated by the internal operation to the interior of the arc connecting member 3021 through the outer shell 3011 and the arc connecting member 3021, so that the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 and the air-increasing runner 3025 also start to rotate with the impact of the hot air, generating a certain driving force, and the generated driving force and the gas are sent to the arc connecting member 3021. Component 2 moves in the direction of component 3031, so that the double-layer rotating shaft 30213 and the guide plate 30212 guide and enhance the gas moving from the inside of the outer shell 3011, so that the gas passing through the double-layer rotating shaft 30213 and the guide plate 30212 drives the screw 3028 and the first-stage propulsion fan 3023 to rotate, thereby enhancing the power of the paddle 3037 during rotation, and the rotating shaft 3034 inside the protective shell 3033 also cooperates with the screw rod 3036 to rotate, so that the propulsion force of the paddle 3037 is further enhanced.

[0042] During use, when the diesel engine body 201 drives the transmission rod 3022 and the push screw 3028 to rotate, the protective shell 3033, the transmission member 1 3032 and the screw rod 3036 also start to rotate with the oar 3037 to generate a propulsion force to move the ship, and the diesel engine body 201 transmits the high-temperature hot air generated by the internal operation to the inside of the arc connection member 1 3021 through the outer shell 3011 and the arc connection member 1 3021, so that the first-stage propulsion fan 3023 and the second-stage propulsion fan 3024 and the air-increasing runner 3025 also start to rotate with the impact of the hot air, generating a certain propulsion force, and the generated propulsion force moves together with the gas in the direction of the arc connection member 2 3031, so that the double-layer rotating shaft 30213 and the guide plate 30212 impact the outer shell 301 1 The gas moving from the inside is guided and enhanced, so that the gas passing through the double-layer rotating shaft 30213 and the guide plate 30212 drives the screw 3028 and the first-stage push fan 3023 to rotate, thereby enhancing the power of the paddle 3037 when rotating, and the rotating shaft 3034 inside the shell 3033 also cooperates with the screw rod 3036 to rotate, so that the driving force of the paddle 3037 is further enhanced, forming an additional thrust and the normal thrust of the paddle 3037 Superposition, greatly enhancing the comprehensive thrust of the ship, improving the speed and acceleration performance, making the ship more advantageous in complex sea conditions or when fast sailing is required, and at the same time, optimizing power transmission, reducing energy loss, improving the efficiency of the propulsion system, and effectively reducing the vibration caused by the lengthening of the diesel engine stroke, making the ship sail more smoothly, and improving comfort and equipment reliability.

[0043] The remaining structure is the same as that of Example 2.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A diesel engine propulsion system for optimizing hydrodynamic performance, characterized in that: include: A conveying unit (100) comprises a conveying member (101) and an oil tank member (102) arranged on the conveying member (101); The diesel engine unit (200) comprises a diesel engine body (201) arranged at the bottom of the conveying member (101), and The propulsion unit (300) comprises an air-increasing assembly (302) arranged at the output end of the diesel engine body (201), a paddle assembly (303) arranged on the air-increasing assembly (302), and a protective shell assembly (301) arranged on the outer diameter of the paddle assembly (303), wherein the protective shell assembly (301) is connected to the diesel engine body (201).

2. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 1, characterized in that: The shield assembly (301) comprises an outer shell (3011) arranged on the diesel engine body (201), a support rod (3012) arranged inside the outer shell (3011), and a fixing ring (3013) arranged on the support rod (3012), and the fixing ring (3013) is connected to the air inflator assembly (302).

3. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 2, characterized in that: The air-increasing component (302) comprises a transmission rod (3022) arranged at the output end of the diesel engine body (201), a first-stage propulsion fan (3023) arranged on the outer diameter of the transmission rod (3022), an air-increasing impeller (3025) arranged at the output end of the transmission rod (3022), and a driving screw (3028) arranged at the other end of the air-increasing impeller (3025), and the other end of the driving screw (3028) is connected to the paddle component (303).

4. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 3, characterized in that: An arc connecting piece (3021) is provided at one end of the diesel engine body (201), an air guide (3027) is provided inside the arc connecting piece (3021), and the air guide (3027) cooperates with the transmission rod (3022).

5. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 4, characterized in that: A guide rod (30211) is arranged on the outer diameter of the arc connecting piece 1 (3021), a guide plate (30212) is arranged on the outer diameter of the arc connecting piece 1 (3021), a double-layer rotating shaft (30213) is arranged on the outer diameter of the arc connecting piece 1 (3021), and the double-layer rotating shaft (30213) is connected to the protective shell assembly (301).

6. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 5, characterized in that: A pneumatic component (3029) is disposed inside the arc connecting component 1 (3021), and the pneumatic component (3029) is rotationally matched with the pushing screw (3028).

7. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 6, characterized in that: The paddle assembly (303) includes an arc connecting member 2 (3031) arranged on the arc connecting member 1 (3021), a transmission member 1 (3032) arranged inside the arc connecting member 2 (3031), a protective shell (3033) arranged on the transmission member 1 (3032), a transmission member 2 (3035) rotatably arranged at the other end of the protective shell (3033), and a spiral rod (3036) arranged at the other end of the transmission member 2 (3035).

8. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 7, characterized in that: A paddle (3037) is provided on the outer diameter of the spiral rod (3036), and the paddle (3037) is rotatably connected to the housing (3011).

9. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 8, characterized in that: A rotating shaft (3034) is rotatably disposed inside the protective shell (3033), and the rotating shaft (3034) is connected to the paddle (3037) and the pushing screw (3028).

10. The diesel engine propulsion system for optimizing hydrodynamic performance according to claim 9, characterized in that: A pushing screw (3028) is rotatably arranged inside the arc connecting member 2 (3031), and the pushing screw (3028) is connected to the transmission member 1 (3032).

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