Air-air intercooling system applied to two-busy-end hydrostatic vehicle type and working method

Abstract

The invention provides an air-air intercooling system applied to two-end-busy hydrostatic vehicle models and a working method, and relates to the technical field of heat management of two-end-busy machines. Comprising a first air-air intercooling air inlet rubber pipe, a second air-air intercooling air inlet rubber pipe, a first air-air intercooling air inlet steel pipe and a second air-air intercooling air inlet steel pipe. The first air-air intercooling air inlet rubber pipe is connected with an air outlet of a turbocharger of the two-end-busy hydrostatic vehicle type, then sequentially connected with the first air-air intercooling air inlet steel pipe and the second air-air intercooling air inlet steel pipe and finally connected with the second air-air intercooling air inlet rubber pipe, and the second air-air intercooling air inlet rubber pipe is connected with an air inlet of the water-cooling composite radiator; the air-air intercooling air outlet pipeline comprises an air-air intercooling air outlet steel pipe; one end of the air-air intercooling air outlet steel pipe is connected with an air outlet of the water-cooling composite radiator, and the other end is connected with an air inlet of an engine of the two-end hydrostatic vehicle type. The problems that heat in a two-end-busy static hydraulic vehicle is difficult to dissipate, and the requirement for the air inlet temperature of an engine is stricter are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermal management of two-way hydraulic machinery, and in particular relates to an air-to-air intercooling system and a working method applied to a two-way hydraulic static vehicle. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Multi-functional machinery refers to multifunctional engineering machinery that can perform a variety of operations, such as loaders and excavators. A notable feature of multi-functional machinery is its compact structure. The design pursues maximum space utilization so that more functional modules can be integrated in a limited space, thus achieving a multi-purpose effect of one machine. Multi-functional hydrostatic refers to the hydraulic transmission technology used in multi-functional machinery, which can provide more precise and smooth power output, improve work efficiency and operating comfort. However, the design of multi-functional hydrostatic models also brings some challenges, especially in terms of thermal management, such as:

[0004] Due to the small space between modules, the heat generated in the machine body is difficult to dissipate effectively to the external environment. During high-intensity operation, the engine, hydraulic system and other key components will generate a lot of heat. If the heat cannot be dissipated in time, it will cause the equipment to overheat, affecting performance and life, and may even cause failures and safety accidents. Therefore, for two-way busy models, how to effectively manage and dissipate heat has become an important technical issue.

[0005] The two-way hydrostatic technology has more stringent requirements on the engine's intake temperature. When the engine is working, the intake temperature has a direct impact on its performance. Too high intake temperature will reduce air density and intake volume, thereby affecting the engine's power output and combustion efficiency. In addition, high-temperature intake air may also increase the thermal stress of engine components, accelerate wear, and shorten the service life of the engine. Therefore, for two-way machines using hydrostatic technology, an effective cooling system must be equipped to ensure that the engine works at a suitable temperature and maintains optimal performance and reliability. Summary of the invention

[0006] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an air-to-air intercooling system and working method applied to a two-end static hydraulic vehicle model, which cools down the high-temperature and high-pressure air after passing through the turbocharger, thereby solving the problem that heat is difficult to dissipate in the two-end static hydraulic vehicle model and the requirement for the engine intake temperature is more stringent.

[0007] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0008] The first aspect of the present invention provides an air-to-air intercooling system for a two-end-busy hydrostatic vehicle, comprising an air-to-air intercooling air intake pipeline, an air-to-air intercooling air outlet pipeline, a water-to-air intercooling composite radiator and a hydraulic oil radiator; the water-to-air intercooling composite radiator is adjacent to the hydraulic oil radiator;

[0009] The air-to-air intercooler intake pipeline includes a first air-to-air intercooler intake hose, a second air-to-air intercooler intake hose, a first air-to-air intercooler intake steel pipe, and a second air-to-air intercooler intake steel pipe; the first air-to-air intercooler intake hose is connected to the turbocharger outlet of the two-end busy hydrostatic vehicle model, and then connected to the first air-to-air intercooler intake steel pipe and the second air-to-air intercooler intake steel pipe in sequence, and finally connected to the second air-to-air intercooler intake hose, and the second air-to-air intercooler intake hose is connected to the air inlet of the water-intercooled composite radiator;

[0010] The air-to-air intercooling outlet pipeline comprises an air-to-air intercooling outlet steel pipe; one end of the air-to-air intercooling outlet steel pipe is connected to the outlet of the water-intercooled composite radiator, and the other end is connected to the engine air inlet of the two-way hydrostatic vehicle.

[0011] Furthermore, the first air-to-air intercooler air intake hose is in a "U" shape, and the second air-to-air intercooler air intake hose is in an "L" shape.

[0012] Furthermore, the first air-to-air intercooling air inlet steel pipe, the second air-to-air intercooling air inlet steel pipe and the air-to-air intercooling air outlet steel pipe are all stainless steel pipes with multiple bends.

[0013] Furthermore, the diameters of the first air-to-air intercooler air intake hose and the second air-to-air intercooler air intake hose are larger than the diameters of the first air-to-air intercooler air intake steel pipe and the second air-to-air intercooler air intake steel pipe; the connection method is: the first air-to-air intercooler air intake hose is sleeved over the first air-to-air intercooler air intake steel pipe, and the second air-to-air intercooler air intake hose is sleeved over the second air-to-air intercooler air intake steel pipe, and both are fixed with clamps.

[0014] Furthermore, the air-to-air intercooler outlet pipeline runs through the muffler and the air filter of the two-end hydrostatic vehicle.

[0015] Furthermore, the first air-to-air intercooling air intake steel pipe and the second air-to-air intercooling air intake steel pipe, the air-to-air intercooling air outlet steel pipe and the air outlet of the water-to-intercooling composite radiator, and the air-to-air intercooling air outlet steel pipe and the engine air intake are all connected by connecting pipes.

[0016] Furthermore, the connecting tube is a silicone rubber tube made of silicone rubber.

[0017] Furthermore, the air-to-air intercooler intake duct is fixed by multiple brackets and U-shaped pipe clamps; one side of the bracket is fixed to the two ends of the U-shaped pipe clamp by bolts, and the other side is provided with at least one fixing point, which is fixed to the frame by bolts; the bracket includes an L-shaped bracket, a small L-shaped bracket and a T-shaped bracket.

[0018] Furthermore, the air-to-air intercooler outlet pipeline is fixed by a special-shaped bracket; the special-shaped bracket is an integrated plate-shaped bracket composed of a vertical part, an inclined part and a horizontal part; wherein the vertical part is fixed to both ends of a plurality of U-shaped pipe clamps by bolts to fix the air-to-air intercooler outlet pipeline.

[0019] Furthermore, the horizontal part of the special-shaped bracket is provided with a plurality of fixing points at four corner positions and is fixed under the muffler by bolts.

[0020] The second aspect of the present invention provides an air-to-air intercooling system working method applied to a two-end hydrostatic vehicle, using the air-to-air intercooling system described in the first aspect, comprising:

[0021] S1: The air flows out from the turbocharger outlet of the two-end hydrostatic vehicle, passes through the first air-to-air intercooling air intake hose, flows through the first air-to-air intercooling air intake steel pipe, passes through the connecting pipe, and flows into the second air-to-air intercooling air intake steel pipe; continues to flow through the second air-to-air intercooling air intake hose, and enters the water-to-air intercooling composite radiator;

[0022] S2: heat exchange in a water-cooled composite radiator;

[0023] S3: The air after heat exchange flows out from the outlet of the water-cooled composite radiator, flows through the connecting pipe, flows into the air-to-air cooler outlet steel pipe, and flows into the engine air intake through the connecting pipe.

[0024] One or more of the above technical solutions have the following beneficial effects:

[0025] The design of the present invention takes into account the compactness of the internal space of the two-headed hydrostatic vehicle model. Through the carefully designed layout of the air-to-air intercooling intake pipeline and the air-to-air intercooling outlet pipeline, including a silicone rubber tube with a certain flexibility and a stainless steel tube with multiple bends, the entire air-to-air intercooling system can be arranged more compactly in a limited space, thereby improving the space utilization rate inside the vehicle model. Effectively cooling the high-temperature and high-pressure air after passing through the turbocharger through the water-cooled composite radiator is crucial to improving the overall performance and reliability of the two-headed hydrostatic vehicle model, and solves the problem that heat is difficult to dissipate in the two-headed hydrostatic vehicle model and the engine intake temperature requirement is more stringent.

[0026] The present invention uses an L-shaped bracket, a small L-shaped bracket, a T-shaped bracket, and a special-shaped bracket, so that the pipeline can be more easily installed at a specific position of the vehicle while maintaining the stability of the structure. The U-shaped pipe clamp provides a method for quickly fixing and adjusting the air-to-air intercooling intake pipeline, ensuring the stability and vibration resistance of the pipeline. This design makes the entire air-to-air intercooling system more compact and improves space utilization, especially when there is little space reserved for the radiator at the front end of the cab. At the same time, it makes it easier to disassemble the pipeline when maintenance or replacement is required, reducing maintenance time and cost and improving maintenance convenience.

[0027] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a perspective view of the air-to-air intercooling system of the first embodiment;

[0030] Figure 2 It is a front view of the air-to-air intercooling system of the first embodiment;

[0031] Figure 3 is a top view of the air-to-air intercooling system of the first embodiment;

[0032] Figure 4 is a rear view of the air-to-air intercooling system of the first embodiment;

[0033] Figure 5 This is a left side view of the air-to-air intercooling system of the first embodiment;

[0034] Figure 6 It is a right side view of the air-to-air intercooling system of the first embodiment.

[0035] Among them, 1. water-cooled composite radiator, 2. hydraulic oil radiator, 3. the first air-to-air intercooler air intake hose, 4. the second air-to-air intercooler air intake hose, 5. the first air-to-air intercooler air intake steel pipe, 6. the second air-to-air intercooler air intake steel pipe, 7. air-to-air intercooler air outlet steel pipe, 8. connecting pipe, 9. L-shaped bracket, 10. small L-shaped bracket, 11. T-shaped bracket, 12. special-shaped bracket, 13. U-shaped pipe clamp. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by ordinary technicians in the technical field to which the present invention belongs.

[0037] It should be noted that the terms used herein are for describing specific embodiments only and are not intended to be limiting of exemplary embodiments according to the present invention.

[0038] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0039] Embodiment 1

[0040] This embodiment discloses an air-to-air intercooling system for a two-way static hydraulic vehicle; Figure 1 As shown, it includes an air-to-air intercooler inlet pipeline, an air-to-air intercooler outlet pipeline, a water-to-intercooler composite radiator 1 and a hydraulic oil radiator 2, wherein the water-to-intercooler composite radiator 1 is adjacent to the hydraulic oil radiator 2.

[0041] Air-to-air intercooler intake pipe connection method:

[0042] The air-to-air intercooler intake pipeline includes a first air-to-air intercooler intake hose 3, a second air-to-air intercooler intake hose 4, a first air-to-air intercooler intake steel pipe 5, and a second air-to-air intercooler intake steel pipe 6; the first air-to-air intercooler intake hose 3 is connected to the turbocharger outlet of the two-end busy hydrostatic vehicle model, and then connected to the first air-to-air intercooler intake steel pipe 5 and the second air-to-air intercooler intake steel pipe 6 in sequence, and finally connected to the second air-to-air intercooler intake hose 4, and the second air-to-air intercooler intake hose 4 is connected to the air inlet of the water-to-air intercooler composite radiator 1.

[0043] The water-cooled composite radiator 1 is a special heat dissipation device, which consists of two cores, a water radiator and an air radiator, which are channels for the coolant and the air. The two cores are welded together side by side, but their flow paths are independent of each other, that is, the coolant and the air will not mix inside the radiator, and they each exchange heat through their own channels.

[0044] In this embodiment, the connection method is specifically as follows: turbocharger air outlet-first air-to-air intercooling air intake hose 3-first air-to-air intercooling air intake steel pipe 5-second air-to-air intercooling air intake steel pipe 6-second air-to-air intercooling air intake hose 4-air-to-water intercooling composite radiator 1 air intake.

[0045] The sequential connection of rubber hose, steel pipe and rubber hose forms a segmented design of the air-to-air intercooler intake pipeline. The pipeline can more effectively utilize the limited internal space of the two-end busy model, realize effective pipeline layout in the compact space inside the vehicle, and is easy to install and maintain.

[0046] Among them, the first air-to-air intercooling air intake hose 3 is "U" shaped, and the second air-to-air intercooling air intake hose 4 is "L" shaped. The diameters of the first air-to-air intercooling air intake hose 3 and the second air-to-air intercooling air intake hose 4 are larger than the diameters of the first air-to-air intercooling air intake steel pipe 5 and the second air-to-air intercooling air intake steel pipe 6. The first air-to-air intercooling air intake hose 3 is sheathed over the first air-to-air intercooling air intake steel pipe 5, and the second air-to-air intercooling air intake hose 4 is sheathed over the second air-to-air intercooling air intake steel pipe 6, and both are fixed with clamps.

[0047] The first air-to-air intercooling air intake steel pipe 5 and the second air-to-air intercooling air intake steel pipe 6 are connected by a connecting pipe 8. In this embodiment, the connecting pipe 8 is a short straight section of a silicone rubber tube made of silicone rubber material, which can be sleeved on the steel pipes at both ends and fixed with a clamp.

[0048] The middle steel pipe of the first air-to-air intercooling air intake steel pipe 5 and the second air-to-air intercooling air intake steel pipe 6 is disconnected and connected with a short straight section of silicone rubber tube. The purpose is to shorten the length of a single steel pipe and reduce the difficulty of the steel pipe production process. The use of silicone rubber material makes the pipeline have high temperature resistance.

[0049] The "U"-shaped design of the first air-to-air intercooler intake hose 3 and the "L"-shaped design of the second air-to-air intercooler intake hose 4 can optimize the air flow path, reduce resistance, and improve air flow efficiency. The diameters of the first air-to-air intercooler intake hose 3 and the second air-to-air intercooler intake hose 4 are larger than the diameters of the first air-to-air intercooler intake steel pipe 5 and the second air-to-air intercooler intake steel pipe 6, ensuring a close fit between the hose and the steel pipe, effectively preventing air leakage, and ensuring the normal operation of the air-to-air intercooler system. In addition, the diameter difference design between the hose and the steel pipe, as well as the silicone rubber tube connected to the turbocharger outlet and the air inlet of the water-cooled composite radiator 1, are the transition between the steel pipes at both ends, so that the entire intake pipeline has better elasticity and flexibility, and can better adapt to various complex working conditions during vehicle operation and extend the service life. At the same time, this design can also reduce the pipe deformation caused by temperature changes to a certain extent, and improve the stability and reliability of the system.

[0050] Air-to-air intercooler outlet pipe connection method:

[0051] The air-to-air intercooler outlet pipeline includes an air-to-air intercooler outlet steel pipe 7; one end of the air-to-air intercooler outlet steel pipe 7 is connected to the outlet of the water-intercooled composite radiator 1, and the other end is connected to the engine air inlet of the two-way static hydraulic vehicle.

[0052] In this embodiment, the connection method is specifically: water-cooled composite radiator 1 outlet-air-to-air cooler outlet steel pipe 7-engine air inlet.

[0053] Similar to the air-to-air intercooler air intake pipeline, both ends of the air-to-air intercooler air outlet steel pipe 7, namely, between the air-to-air intercooler air outlet steel pipe 7 and the air outlet of the water-to-air intercooler composite radiator 1, and between the air-to-air intercooler air outlet steel pipe 7 and the engine air intake, are connected by connecting pipes 8 and fixed with clamps.

[0054] In this embodiment, the connecting pipe 8 is a short straight section of silicone rubber tube. In the air-to-air intercooler outlet pipeline, the outlet of the water-to-air intercooler composite radiator 1 is connected to a straight section of silicone rubber tube, then a long stainless steel tube, then a straight section of silicone rubber tube, and then the engine air intake. The sealing and stability of the connection are ensured, and the elasticity of the silicone rubber tube further enhances the anti-vibration ability of the entire outlet pipeline, which not only ensures the strength of the pipeline, but also takes into account the flexibility, so that the entire air-to-air intercooler outlet pipeline can better adapt to various working conditions in the operation of the two-way busy vehicle, and improve the overall performance of the system.

[0055] Adaptation of air-to-air intercooling system and two-way hydrostatic models:

[0056] In this embodiment, the air-to-air intercooler outlet pipe runs through the muffler and the air filter of the two-way hydrostatic vehicle (not shown in the drawings). This layout effectively utilizes the internal space of the two-way vehicle, reduces the occupied area of ​​the pipe, and enables the air-to-air intercooler outlet pipe to effectively deliver air to the engine without affecting other components.

[0057] The first air-to-air cold air intake steel pipe 5, the second air-to-air cold air intake steel pipe 6 and the air-to-air cold air outlet steel pipe 7 are all stainless steel pipes with multiple bends. In this embodiment, the first air-to-air cold air intake steel pipe 5 is bent at two places, the second air-to-air cold air intake steel pipe 6 is bent at three places, and the air-to-air cold air outlet steel pipe 7 is bent at five places.

[0058] This bending design not only optimizes the spatial layout and makes the entire air-to-air intercooling system more compact, but also improves the strength and rigidity of the steel pipe, effectively resisting the vibration and impact caused by the high-pressure air flow. The stainless steel pipe design with multiple bends allows the steel pipe to more flexibly adapt to the complex structure inside the two-way hydrostatic vehicle model, achieving a more compact pipeline layout in a limited space while ensuring smooth and efficient air flow. By accurately designing the angle and position of the bend, the air flow path can be further optimized, unnecessary bends and resistance can be reduced, and other components in the vehicle will not be affected.

[0059] The air-to-air intercooler intake pipe is fixed by multiple brackets and U-shaped pipe clamps 13; one side of the bracket is fixed to the two ends of the U-shaped pipe clamp 13 by bolts, and the other side is provided with at least one fixing point, which is fixed to the vehicle frame by bolts; the bracket includes an L-shaped bracket 9, a small L-shaped bracket 10 and a T-shaped bracket 11. The bracket makes it easier to install the pipe at a specific position of the vehicle, and the U-shaped pipe clamp 13 provides a method for quickly fixing and adjusting the air-to-air intercooler intake pipe, ensuring the stability and vibration resistance of the pipe.

[0060] The air-to-air intercooler outlet pipe is fixed by a special-shaped bracket 12; the special-shaped bracket 12 is an integrated plate-shaped bracket composed of a vertical part, an inclined part and a horizontal part; wherein the vertical part is fixed to both ends of a plurality of U-shaped pipe clamps 13 by bolts, and is used to fix the air-to-air intercooler outlet pipe. The horizontal part of the special-shaped bracket 12 is provided with a plurality of fixing points at the four corners, which are fixed under the muffler by bolts. The design of the special-shaped bracket 12 enables the air-to-air intercooler outlet pipe to adapt to the complex spatial layout inside the vehicle, allowing the pipe to be arranged more effectively in a limited space while maintaining the stability of the structure. By fixing it under the muffler with bolts, the fixing strength of the pipe is improved and the displacement of the pipe during operation is reduced.

[0061] At the same time, the design of the L-shaped bracket 9, the small L-shaped bracket 10, the T-shaped bracket 11, the special-shaped bracket 12 and the U-shaped pipe clamp 13 makes it easier to disassemble the pipeline when maintenance or replacement is required, reducing maintenance time and cost and improving the convenience of maintenance.

[0062] By optimizing the air flow path, it is ensured that the high-temperature and high-pressure air can be quickly and effectively cooled after passing through the turbocharger. Pipe connections of different materials and precisely designed bent steel pipes further improve the durability and reliability of the system. The special working environment of the two-head hydraulic static vehicle is fully considered, and the problem of heat dissipation in the two-head hydraulic static vehicle and the stricter requirements on the engine intake temperature are solved, meeting the requirements of emission regulations and improving the engine power performance and economy.

[0063] Embodiment 2

[0064] This embodiment discloses a working method of an air-to-air intercooling system applied to a two-end hydrostatic vehicle, including:

[0065] S1: Intake stage:

[0066] The air first flows out from the turbocharger outlet of the two-end busy hydrostatic vehicle model, passes through the first air-to-air intercooler intake hose 3, which is designed in a "U" shape, which helps to optimize the air flow path and reduce resistance; then flows through the first air-to-air intercooler intake steel pipe 5, and then through the connecting pipe 8-a short section of silicone rubber silicone rubber tube, into the second air-to-air intercooler intake steel pipe 6, and the air continues to flow through the second air-to-air intercooler intake steel pipe 6. The two steel pipes are precisely designed stainless steel pipes with multiple bends, which optimize the spatial layout and improve the strength and rigidity of the steel pipe. Finally, the air passes through the second air-to-air intercooler intake hose 4, which is designed in an "L" shape and is connected to the air inlet of the water-to-air intercooler composite radiator 1.

[0067] S2: Heat exchange stage:

[0068] In the water-cooled composite radiator 1, air and coolant exchange heat through their respective channels, and the air is cooled.

[0069] S3: Exhalation stage:

[0070] The air after heat exchange flows out from the air outlet of the water-cooled composite radiator 1, then flows through the connecting pipe 8 - a small section of silicone rubber tube, and flows into the air-cooled air outlet steel pipe 7, which is also a stainless steel pipe with multiple bends, and then passes through the connecting pipe 8 - a small section of silicone rubber tube, and finally flows into the engine air intake.

[0071] The steps involved in the above embodiment 2 correspond to those in the method embodiment 1. For the specific implementation method, please refer to the relevant description part of the embodiment 1.

[0072] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. An air-to-air intercooling system for a two-way hydrostatic vehicle, characterized in that: It includes an air-to-air intercooler air inlet pipeline, an air-to-air intercooler air outlet pipeline, a water-to-water intercooler composite radiator and a hydraulic oil radiator; the water-to-water intercooler composite radiator is adjacent to the hydraulic oil radiator; The air-to-air intercooler intake pipeline includes a first air-to-air intercooler intake hose, a second air-to-air intercooler intake hose, a first air-to-air intercooler intake steel pipe, and a second air-to-air intercooler intake steel pipe; the first air-to-air intercooler intake hose is connected to the turbocharger outlet of the two-end busy hydrostatic vehicle model, and then connected to the first air-to-air intercooler intake steel pipe and the second air-to-air intercooler intake steel pipe in sequence, and finally connected to the second air-to-air intercooler intake hose, and the second air-to-air intercooler intake hose is connected to the air inlet of the water-intercooled composite radiator; The air-to-air intercooling outlet pipeline comprises an air-to-air intercooling outlet steel pipe; one end of the air-to-air intercooling outlet steel pipe is connected to the outlet of the water-intercooled composite radiator, and the other end is connected to the engine air inlet of the two-way hydrostatic vehicle.

2. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 1, characterized in that: The first air-to-air intercooler air intake hose is in a "U" shape, and the second air-to-air intercooler air intake hose is in an "L" shape.

3. The air-to-air intercooling system for a two-head hydrostatic vehicle as claimed in claim 1, characterized in that: The first air-to-air intercooling air inlet steel pipe, the second air-to-air intercooling air inlet steel pipe and the air-to-air intercooling air outlet steel pipe are all stainless steel pipes with multiple bends.

4. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 1, characterized in that: The diameters of the first air-to-air intercooler air intake hose and the second air-to-air intercooler air intake hose are larger than the diameters of the first air-to-air intercooler air intake steel pipe and the second air-to-air intercooler air intake steel pipe; the connection method is: the first air-to-air intercooler air intake hose is sleeved over the first air-to-air intercooler air intake steel pipe, and the second air-to-air intercooler air intake hose is sleeved over the second air-to-air intercooler air intake steel pipe, and both are fixed with clamps.

5. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 1, characterized in that: The air-to-air intercooler outlet pipeline runs through the muffler and the air filter of the two-end hydrostatic vehicle.

6. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 1, characterized in that: The first air-to-air intercooler air intake steel pipe and the second air-to-air intercooler air intake steel pipe, the air-to-air intercooler air outlet steel pipe and the air outlet of the water-to-air intercooler composite radiator, and the air-to-air intercooler air outlet steel pipe and the engine air intake are all connected by connecting pipes; the connecting pipes are silicone rubber pipes made of silicone rubber.

7. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 1, characterized in that: The air-to-air intercooler intake duct is fixed by multiple brackets and U-shaped pipe clamps; one side of the bracket is fixed to the two ends of the U-shaped pipe clamp by bolts, and the other side is provided with at least one fixing point, which is fixed to the frame by bolts; the bracket includes an L-shaped bracket, a small L-shaped bracket and a T-shaped bracket.

8. The air-to-air intercooling system for a two-head hydrostatic vehicle as claimed in claim 1, characterized in that: The air-to-air coolant outlet pipeline is fixed by a special-shaped bracket; the special-shaped bracket is an integrated plate-shaped bracket composed of a vertical part, an inclined part and a horizontal part; wherein the vertical part is fixed to both ends of a plurality of U-shaped pipe clamps by bolts, so as to fix the air-to-air coolant outlet pipeline.

9. The air-to-air intercooling system for a two-end hydrostatic vehicle as claimed in claim 8, characterized in that: The horizontal part of the special-shaped bracket is provided with a plurality of fixing points at four corner positions and is fixed under the muffler by bolts.

10. A method for operating an air-to-air intercooling system for a two-end hydrostatic vehicle, using the air-to-air intercooling system as claimed in any one of claims 1 to 9, characterized in that: include: S1: The air flows out from the turbocharger outlet of the two-end hydrostatic vehicle, passes through the first air-to-air intercooling air intake hose, flows through the first air-to-air intercooling air intake steel pipe, passes through the connecting pipe, and flows into the second air-to-air intercooling air intake steel pipe; continues to flow through the second air-to-air intercooling air intake hose, and enters the water-to-air intercooling composite radiator; S2: heat exchange in a water-cooled composite radiator; S3: The air after heat exchange flows out from the outlet of the water-cooled composite radiator, flows through the connecting pipe, flows into the air-to-air cooler outlet steel pipe, and flows into the engine air intake through the connecting pipe.

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