An internal combustion engine air intake cooling system

Abstract

This invention relates to an internal combustion engine intake cooling system, comprising an internal combustion engine cylinder; an intake heat exchanger for cooling the intake air; a temperature sensor for detecting the intake air temperature; an intelligent control valve located behind the internal combustion engine cylinder and operating based on the temperature signal transmitted by the temperature sensor; a thermoacoustic drive device connected to the intelligent control valve, which receives high-temperature exhaust gas and converts it into acoustic energy through multiple heat exchange processes when the intake air temperature is ≥ a preset temperature; and a pulse chiller connected to both the thermoacoustic drive device and the intake heat exchanger. This invention features a compact and reasonable structure, is easy to operate, and automatically and adaptively treats high-temperature exhaust gas based on the intake air temperature. Furthermore, when the intake air temperature is too high, the high-temperature exhaust gas discharged after combustion is converted into pulse acoustic energy by the thermoacoustic drive device, which then drives the pulse chiller to cool the intake air, automatically controlling the intake air temperature within the optimal range and ensuring the normal operation of the internal combustion engine.

Description

Technical Field

[0001] This invention relates to the field of internal combustion engine technology, and in particular to an internal combustion engine intake cooling system. Background Technology

[0002] High ambient temperatures can cause internal combustion engines to consume more fuel, reduce power, and even cause some parts to expand due to heat, altering the normal clearance between parts and causing the engine to malfunction.

[0003] Existing technologies for controlling the intake air temperature of internal combustion engines include installing external cooling devices, adjusting valve opening, and replacing pipe materials.

[0004] A thermoacoustic drive is a thermodynamic device that converts heat energy into sound energy and then into mechanical work. It utilizes the interconversion between heat energy and sound energy to drive an engine, making it a special type of thermodynamic power equipment.

[0005] Thermoacoustic drive devices generally include core components such as heat exchangers, regenerators, and buffer tubes.

[0006] A pulse refrigeration unit is a thermodynamic cycle device used to achieve refrigeration. It is a pistonless, partless refrigeration technology that achieves its cooling effect through the periodic expansion and compression of gases.

[0007] While there are existing examples of thermoacoustic actuators with different structures driving refrigerators, their practical application remains in the research and development stage and is not yet widespread in commercial and large-scale applications. However, due to their potential advantages in energy conversion and efficiency, thermoacoustic actuators may play an important role in the future energy sector.

[0008] During the research process of this invention, it was found that when the existing thermoacoustic drive device driving refrigeration technology is applied to the intake and exhaust system of an internal combustion engine, the temperature and flow rate of the exhaust gas change in real time. Compared with the traditional external stable heat source as input, the use of high-temperature exhaust gas as the heat source causes the pressure amplitude generated in the thermoacoustic drive device to change with the intermittent exhaust process, thereby affecting the operating frequency of the thermoacoustic drive device and resulting in unstable refrigeration efficiency.

[0009] Furthermore, due to the limited internal space and high temperature of the internal combustion engine, compared to traditional external air or water cooling, thermoacoustic drive devices can hardly exchange heat with their internal heat exchangers by adding water pipes or directly exchanging heat with the surrounding environment.

[0010] Therefore, we propose an intake air cooling system for internal combustion engines. Summary of the Invention

[0011] In view of the shortcomings of the existing production technology, the applicant provides an internal combustion engine intake air cooling system that uses the high-temperature exhaust gas discharged after combustion to drive a pulse cooler to cool and lower the intake air, thereby controlling the intake air temperature within the optimal range and ensuring the normal operation of the internal combustion engine.

[0012] The technical solution adopted in this invention is as follows:

[0013] An internal combustion engine intake air cooling system, comprising:

[0014] Internal combustion engine cylinder;

[0015] The intake heat exchanger is located at the front end of the internal combustion engine cylinder and can be opened in a controllable manner to exchange heat and cool the intake air.

[0016] Temperature sensor used to detect intake air temperature;

[0017] The intelligent control valve is located behind the internal combustion engine cylinder and automatically controls the direction of the exhaust gas flow from the internal combustion engine cylinder based on the temperature signal transmitted by the temperature sensor. When the intake air temperature is lower than the preset value, the exhaust gas will be discharged directly.

[0018] The thermoacoustic drive device, which is connected to the intelligent control valve, receives high-temperature exhaust gas and converts it into acoustic energy through multiple heat exchange processes when the intake temperature is ≥ the preset temperature.

[0019] The pulse chiller is connected to a thermoacoustic drive device and an intake heat exchanger to convert acoustic energy into mechanical energy to achieve refrigeration, while transferring the cold source to the intake heat exchanger.

[0020] Furthermore, the thermoacoustic driving device includes:

[0021] An exhaust heat exchanger contains a working medium and exchanges heat with high-temperature exhaust gas to raise its temperature.

[0022] The regenerator and heat buffer tube are connected to the outlet of the exhaust heat exchanger to achieve slow heating.

[0023] The cooling heat exchanger is connected to the regenerator and the heat buffer tube respectively, and exchanges heat with the high-temperature working medium.

[0024] Furthermore, the exhaust heat exchanger adopts a coil structure and is tightly arranged around the periphery of the high-temperature exhaust gas to achieve heat exchange. The exhaust heat exchanger includes an exhaust heat exchanger inlet for replenishing the working medium and an exhaust heat exchanger outlet for discharging the high-temperature working medium. Both the inner and outer sides of the exhaust heat exchanger are provided with heat insulation layers.

[0025] Furthermore, a turbine mechanism is provided at the lower end of the coil structure, and the turbine mechanism is facing the high-temperature exhaust gas to drive rotation. Turbine blades are provided on the turbine mechanism and the turbine blades rotate under the drive of the high-temperature exhaust gas, converting wind energy into rotational mechanical energy. An induction device is connected to the center of the turbine mechanism, which can convert the rotational mechanical energy of the turbine mechanism into electrical energy.

[0026] Furthermore, the regenerator and the heat buffer tube are nested on the inner ring of the exhaust heat exchanger, and the regenerator and the heat buffer tube are respectively connected to the outlet of the exhaust heat exchanger.

[0027] Furthermore, a cooling plate is connected to the inner wall of the structure located on the inner side of the regenerator or the heat buffer tube. The cooling plate is connected to the induction device, and two symmetrical cooling heat exchangers are sleeved inside the cooling plate. The two cooling heat exchangers are respectively connected to the regenerator and the heat buffer tube.

[0028] Furthermore, the cooling heat exchanger's exchange pipeline is arranged in two sections with a back-and-forth reciprocating pattern; the cooling heat exchanger contacts the cooling fins for heat exchange; the cooling heat exchanger has a two-section pipe structure, including a first cooling heat exchanger pipeline outlet, a second cooling heat exchanger pipeline inlet, and a first cooling heat exchanger pipeline inlet and a second cooling heat exchanger pipeline outlet. The first cooling heat exchanger pipeline outlet is connected to the regenerator, the second cooling heat exchanger pipeline inlet is connected to the heat buffer tube, and the outlets of both the first cooling heat exchanger pipeline inlet and the second cooling heat exchanger pipeline outlet are connected to the resonant tube.

[0029] Furthermore, the sensing device includes:

[0030] Permanent magnets, in multiple quantities, are connected to the inside of the turbine blades and rotate with them;

[0031] The induction coils are multiple and are fixed inside multiple permanent magnets by a core. The induction coils consist of an iron core and a coil.

[0032] The wires connect to the induction coil and the cooling element respectively, thereby energizing the cooling element.

[0033] Furthermore, the regenerator is made of N-mesh stainless steel wire mesh stacked together.

[0034] Furthermore, the heat buffer tube is made of stainless steel tube with a certain taper.

[0035] The beneficial effects of this invention are as follows:

[0036] This invention features a compact and reasonable structure, is easy to operate, and automatically and adaptively treats high-temperature exhaust gas based on the intake air temperature. When the intake air temperature is too high, the high-temperature exhaust gas discharged after combustion is converted into pulse sound energy signals through a thermoacoustic drive device, which then drives a pulse cooler to cool down the intake air, thus automatically controlling the intake air temperature within the optimal range. This ensures the normal operation of the internal combustion engine, improves work efficiency, and has strong practicality.

[0037] In addition, the present invention also has the following advantages:

[0038] 1. The intake air cooling system of this internal combustion engine can start and stop the thermoacoustic drive device at any time according to the feedback of the intake air temperature from the intelligent control valve, and then cool it down by pulse refrigeration machine, so as to control the intake air temperature within a certain range, which is flexible and stable.

[0039] 2. This thermoacoustic drive device can utilize the waste heat and kinetic energy of the internal combustion engine cylinder exhaust to the maximum extent, thereby reducing the intake air temperature and ensuring that the machine maintains normal operation.

[0040] 3. The negative thermal resistance effect of the cooling chip is used to replace the traditional external cold source to cool the working fluid, which simplifies the piping design and realizes the self-consistency of energy conversion within the system. Attached Figure Description

[0041] Figure 1 This is a flowchart of the present invention.

[0042] Figure 2 This is a cross-sectional view of the thermoacoustic drive device in this invention.

[0043] Figure 3 This is a top view of the thermoacoustic drive device in this invention.

[0044] Figure 4 This is a cross-sectional view of the cooling element in this invention.

[0045] in:

[0046] Temperature sensor 100; intelligent control valve 200; exhaust heat exchanger 300; cooling heat exchanger 400; regenerator 500; thermal buffer tube 600; resonant tube 700; intake heat exchanger 800; pulse refrigerator 900; thermoacoustic drive device 1000.

[0047] 1. Cooling element; 2. Insulation layer; 3. Induction device; 4. Turbine mechanism;

[0048] Exhaust heat exchanger inlet 301; exhaust heat exchanger outlet 302;

[0049] 31. Permanent magnet; 32. Iron core; 33. Coil; 34. Wire; 35. Spindle;

[0050] Turbine blade 41;

[0051] First cooling heat exchanger pipe outlet 401; first cooling heat exchanger pipe inlet 402; second cooling heat exchanger pipe outlet 403; second cooling heat exchanger pipe inlet 404. Detailed Implementation

[0052] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0053] like Figures 1-4 As shown, the internal combustion engine intake cooling system of this embodiment includes an internal combustion engine cylinder, an intake heat exchanger 800, a temperature sensor 100, an intelligent control valve 200, a thermoacoustic drive device 1000, and a pulse refrigerator 900. The temperature sensor 100 is installed in the intake pipe; the intelligent control valve 200 is electrically connected to the temperature sensor 100; the thermoacoustic drive device 1000 is connected to the intelligent control valve 200 through the exhaust pipe; a resonant tube 700 is connected between the thermoacoustic drive device 1000 and the pulse refrigerator 900. By detecting the intake air temperature, the system will automatically and adaptively treat the high-temperature exhaust gas according to the intake air temperature. When the intake air temperature is too high, the high-temperature exhaust gas discharged after combustion is converted into a pulse sound energy signal by the thermoacoustic drive device, which then drives the pulse refrigerator to cool down the intake air, so that the intake air temperature is automatically controlled within the optimal range.

[0054] like Figure 4 The image shown is a cross-sectional view of the cooling chip 1 in this embodiment. Ring-shaped N-type and P-type semiconductors are arranged alternately at an upper and lower position. The outermost layer is an insulating ceramic sheet for heat conduction, with the inner side being the cold end and the outer side the hot end. A metal conductor for electrical conduction is sandwiched between the ceramic sheet and the semiconductor material. When a direct current passes through a thermocouple pair formed by an N-type semiconductor and a P-type semiconductor, heat is transferred from one end to the other, resulting in a temperature difference across the semiconductor.

[0055] In this embodiment, specifically:

[0056] The intake heat exchanger 800 is located at the front end of the internal combustion engine cylinder and can be opened in a controllable manner to exchange heat and cool the intake air.

[0057] Temperature sensor 100 is used to detect intake air temperature;

[0058] The intelligent control valve 200 is located behind the internal combustion engine cylinder and automatically controls the direction of the exhaust gas flow from the internal combustion engine cylinder according to the temperature signal transmitted by the temperature sensor 100. When the intake air temperature is lower than the preset value, the exhaust gas will be discharged directly.

[0059] The thermoacoustic drive device 1000 is connected to the intelligent control valve 200. When the inlet air temperature is greater than or equal to the preset temperature, it will receive high-temperature exhaust gas and convert it into acoustic energy through multiple heat exchange processes.

[0060] The pulse chiller 900 is connected to the thermoacoustic drive device 1000 and the inlet heat exchanger 800 respectively. It is used to convert acoustic energy into mechanical energy to achieve refrigeration, and at the same time transfer the cold source to the inlet heat exchanger 800.

[0061] Thermoacoustic drive device 1000 includes:

[0062] The exhaust heat exchanger 300 contains a working medium and exchanges heat with the high-temperature exhaust gas to raise its temperature.

[0063] The regenerator 500 and the heat buffer tube 600 are respectively connected to the outlet of the exhaust heat exchanger 300 to achieve slow heating.

[0064] Cooling heat exchanger 400 is connected to regenerator 500 and heat buffer tube 600 respectively to exchange heat with high-temperature working medium.

[0065] The exhaust heat exchanger 300 adopts a coil structure and is tightly encircled around the high-temperature exhaust gas to achieve heat exchange. The exhaust heat exchanger 300 includes an exhaust heat exchanger inlet 301 for replenishing the working medium and an exhaust heat exchanger outlet 302 for outputting the high-temperature working medium. Both the inner and outer sides of the exhaust heat exchanger 300 are provided with heat insulation layers 2.

[0066] The lower end of the coil structure is provided with a turbine mechanism 4, which is facing the high-temperature exhaust gas to drive rotation. The turbine mechanism 4 is provided with turbine blades 41, which rotate under the drive of the high-temperature exhaust gas, converting wind energy into rotational mechanical energy. The center of the turbine mechanism 4 is connected to an induction device 3, which can convert the rotational mechanical energy of the turbine mechanism 4 into electrical energy.

[0067] The regenerator 500 and the heat buffer tube 600 are nested on the inner ring of the exhaust heat exchanger 300, and the regenerator 500 and the heat buffer tube 600 are respectively connected to the exhaust heat exchanger outlet 302.

[0068] The inner wall of the regenerator 500 or the heat buffer tube 600 is connected to a Peltier cooling chip 1. The Peltier cooling chip is connected to the induction device 3. Two symmetrical cooling heat exchangers 400 are sleeved inside the cooling chip 1. The two cooling heat exchangers 400 are respectively connected to the regenerator 500 and the heat buffer tube 600.

[0069] The cooling heat exchanger 400 has two sections of reciprocating tubing arranged in a back-and-forth pattern. The cooling heat exchanger 400 contacts the cooling element 1 for heat exchange. The cooling heat exchanger 400 has a two-section pipe structure, including a first cooling heat exchanger pipe outlet 401, a second cooling heat exchanger pipe inlet 404, a first cooling heat exchanger pipe inlet 402, and a second cooling heat exchanger pipe outlet 403. The first cooling heat exchanger pipe outlet 401 is connected to the regenerator 500, and the regenerator 500 is connected to the air inlet of the exhaust heat exchanger 300 to achieve circulation. The second cooling heat exchanger pipe inlet 404 is connected to the heat buffer tube 600, and the outlets of the first cooling heat exchanger pipe inlet 402 and the second cooling heat exchanger pipe outlet 403 are both connected to the resonant tube 700.

[0070] The inductor 3 includes:

[0071] Permanent magnets 31, in multiple quantities, are connected to the inner side of turbine blades 41 and rotate accordingly;

[0072] Multiple induction coils are fixed inside multiple permanent magnets 31 via a spindle 35. The induction coils consist of an iron core 32 and a coil 33.

[0073] The wire 34 is connected to the induction coil and the cooling chip 1 respectively, so as to enable the cooling chip 1 to be energized.

[0074] In this embodiment, specifically, as shown in... Figure 2 and Figure 3 As shown, combustion exhaust gas flows through the interlayer formed by the inner and outer heat insulation layers 2. The turbine mechanism 4 is located at the bottom of the thermoacoustic drive device 1000. The exchange pipes of the cooling heat exchanger 400 and the cooling plate 1 are located in the cylindrical space surrounded by the inner heat insulation layer 2. The generator formed by the coil 33, iron core 32, permanent magnet 31 and spindle 35 is located below the vertical space of the exchange pipes of the cooling heat exchanger 400 and the cooling plate 1.

[0075] See attached document Figure 1 According to an embodiment of the present invention, the intake cooling system includes a temperature sensor 100, an intelligent control valve 200, an exhaust heat exchanger 300, a cooling heat exchanger 400, a regenerator 500, a heat buffer tube 600, a resonant tube 700, and a pulse refrigerator 900.

[0076] The temperature sensor 100 is used to detect the intake air temperature inside the intake pipe, and the monitoring data of the temperature sensor 100 is transmitted to the intelligent control valve 200 for judgment:

[0077] When the intake air temperature has not yet reached the preset threshold temperature, the intelligent control valve 200 drives the combustion exhaust gas to be discharged directly.

[0078] When the intake air temperature reaches the preset threshold temperature, the intelligent control valve 200 drives the combustion exhaust gas through the exhaust heat exchanger 300. The thermoacoustic drive device 1000 generates vibration energy inside the pipeline, which enters the resonant tube 700 and resonates, driving the pulse tube refrigerator to work. The refrigerator provides cooling to the intake pipeline, thus reducing the intake air temperature. If environmental factors change or the refrigerator provides sufficient cooling to the intake pipeline, causing the intake air temperature to drop too much, and the temperature sensor 100 detects that the real-time temperature is lower than the set lower limit temperature, the intelligent control valve 200 drives the combustion exhaust gas to be discharged directly. Since the thermoacoustic drive device 1000 loses its only external heat source, the vibration energy stored inside gradually dissipates until it falls below the minimum acoustic energy required to start the pulse tube refrigerator. The pulse tube refrigerator then stops working, the intake cooling system stops working, and the intake air temperature rises.

[0079] As the intake air temperature of an internal combustion engine fluctuates repeatedly due to various reasons, the intake cooling system repeats the above process, thus forming a closed-loop system.

[0080] Therefore, it can be seen that the intake and exhaust system described by the control logic of the above technical solution can control the intake temperature of the internal combustion engine within a certain range, thereby achieving the best combustion efficiency of the internal combustion engine.

[0081] In this embodiment, the exchange pipelines of the exhaust heat exchanger 300 and the cooling heat exchanger 400 are characterized by being made of materials with good thermal conductivity; the exchange pipeline of the exhaust heat exchanger 300 is spirally spiraled around the exhaust gas emission jacket and led downwards; the exchange pipeline of the cooling heat exchanger 400 is arranged in two sections with up-and-down folding and reciprocating patterns; the cooling heat exchanger 400 contacts the cooling plate 1 for heat exchange; the cooling heat exchanger 400 has a two-section pipe structure, and its four interfaces are distributed in a left-right symmetrical manner.

[0082] The specific working principle of the thermoacoustic drive device 1000 is as follows:

[0083] The combustion exhaust gas flows through the outer interlayer of the insulation layer 2, sequentially through the exchange pipe 1 of the exhaust heat exchanger 300 and the turbine device 4. First, during the exhaust heat exchange stage, it undergoes sufficient heat exchange with the working medium in the exchange pipe, causing the working medium temperature to rise. Second, as the internal combustion engine continuously burns exhaust gas, the combustion exhaust gas drives the turbine blades 4 to rotate when it flows through the turbine device. The turbine blades simultaneously drive the permanent magnet 31 fixed to it to rotate around the spindle 35, while the iron core 32 with the coil 33 attached to it and the spindle 35 remain stationary.

[0084] At this time, due to the rotation of the permanent magnet 31, the coil 33 cuts the magnetic field lines to generate current. The coil 33 supplies power to the cooling element 1 through the wire 34. After the cooling element 1 is energized, the current continuously circulates between the P-type semiconductor and the N-type semiconductor, causing one side to heat up and the other side to cool down. This creates a thermal difference that can be used for cooling or heating, depending on the direction of the current. Here, the side of the contact cooling heat exchanger 400 is defined as the cold end, and the opposite side as the hot end. As the temperature of the cold end decreases, the temperature of the working medium inside the cooling heat exchanger pipes, which are surrounded by the cooling element 1, also decreases.

[0085] Through the aforementioned device, the thermal and kinetic energy of the combustion exhaust gas is utilized to achieve the purpose of heat absorption and release of the working medium within a single device. The blades of the turbine device 4 can, to a certain extent, prevent the direct loss of combustion exhaust gas, forming a temperature-stable semi-enclosed space with the heat insulation layers 2 on both sides. Simultaneously, it fully utilizes the kinetic energy of the exhaust gas to generate electricity, using the cooling element 1 for cooling, eliminating the need for additional piping to cool the working medium. As can be seen from the above description, this device provides the possibility for applying the thermoacoustic drive device 1000 to drive the pulse refrigerator 900 in the intake air cooling system of an internal combustion engine, as proposed in this invention.

[0086] See attached document Figure 3 In the embodiment of the thermoacoustic drive device 1000 applicable to the internal combustion engine, the exhaust gas flows in the heat insulation layer 2 interlayer, and the exhaust heat exchanger inlet and outlet 301, 302 are respectively connected to the regenerator 500 and the heat buffer tube 600. The regenerator 500 is made of N-mesh stainless steel wire mesh, and the heat buffer tube 600 is made of stainless steel tube with a certain taper. The above two components are conventional components and do not involve the key of the present invention, and will not be described in detail below.

[0087] A heat insulation layer is provided between the cooling element 1 and the regenerator 500 to prevent the regenerator 500 from being damaged by overheating.

[0088] See attached document Figure 3 The outlet 401 of the first cooling heat exchanger pipe is connected to the regenerator 500, and the regenerator 500 is connected to the inlet of the exhaust heat exchanger 300 to achieve circulation. The inlet 404 of the second cooling heat exchanger pipe is connected to the heat buffer pipe 600. The inlet 402 of the first cooling heat exchanger pipe and the outlet 403 of the second cooling heat exchanger pipe are connected by a resonant pipe 700. Thus, all components of the thermoacoustic drive device 1000 are connected as a closed loop.

[0089] Combustion exhaust gas flows through exhaust heat exchanger 300. The working medium in the exhaust heat exchanger inlet 301 absorbs heat energy indirectly, achieving the purpose of heating. At this time, the pressure in the thermoacoustic device begins to fluctuate slightly due to localized heating. Then, the working medium flows through the exhaust heat exchanger outlet 302 into the heat buffer tube 600, and then through the heat buffer tube 600 into the corresponding heat exchanger 400. As the combustion exhaust gas drives the turbine blades 41 to rotate and generate electricity, it triggers heat transfer from the cooling element 1, starting to absorb a large amount of heat from the working medium in the cooling heat exchanger 400. At this time, the temperature difference in the system further increases. After flowing out of the cooling heat exchanger 400, the working medium enters the resonant tube 700.

[0090] When the temperature gradient between the cold and hot ends of the regenerator 500 exceeds the critical temperature gradient, the working medium in the thermoacoustic drive device will spontaneously oscillate due to the periodic changes in internal pressure and temperature.

[0091] These sound waves resonate within the acoustic cavity, and the resulting vibrational energy is propagated to the output of the resonant tube 700.

[0092] Afterward, the working medium flows through the cooling heat exchanger 400 and the regenerator 500 again, and after completing approximately isothermal heat transfer in the regenerator 500, it flows back to the exhaust heat exchanger 300. Thus, the thermoacoustic drive device 1000 described in this example completes one cycle.

[0093] It should be noted that there is a certain delay in the detection of intake air temperature and the control processing of the intelligent control valve 200. However, in actual use, this delay will not have much impact, because the ambient temperature difference in a region is not large and changes gradually, and the intake air temperature will not be affected by the delay control.

[0094] The present invention has the following beneficial effects in practical use:

[0095] 1. The intake air cooling system of this internal combustion engine can start and stop the thermoacoustic drive device 1000 at any time according to the feedback of the intake air temperature from the intelligent control valve 200, and then cool it down through the pulse refrigerator 900, so as to control the intake air temperature within a certain range, which is flexible and stable.

[0096] 2. The thermoacoustic drive device 1000 can utilize the waste heat and kinetic energy of the internal combustion engine cylinder exhaust gas to the maximum extent, thereby reducing the intake air temperature and ensuring that the machine maintains normal operation.

[0097] 3. The negative thermal resistance effect of the cooling chip 1 is used to replace the traditional external cold source to cool the working fluid, which simplifies the pipeline design and realizes the self-consistency of energy conversion within the system.

[0098] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. An internal combustion engine intake cooling system, characterized in that, include: Internal combustion engine cylinder; An intake heat exchanger (800) is located at the front end of the internal combustion engine cylinder and can be opened in a controllable manner to exchange heat and cool the intake air. Temperature sensor (100) is used to detect intake air temperature; The intelligent control valve (200) is located behind the internal combustion engine cylinder and automatically controls the direction of the exhaust gas flow from the internal combustion engine cylinder according to the temperature signal transmitted by the temperature sensor (100). When the intake temperature is less than the preset value, the exhaust gas will be discharged directly. The thermoacoustic drive device (1000), which is connected to the intelligent control valve (200), receives high-temperature exhaust gas and converts it into acoustic energy through multiple heat exchangers when the intake temperature is ≥ the preset temperature; A pulse chiller (900) is connected to a thermoacoustic drive device (1000) and an inlet heat exchanger (800) to convert acoustic energy into mechanical energy for cooling, while simultaneously transferring the cold source to the inlet heat exchanger (800); the thermoacoustic drive device (1000) includes: An exhaust heat exchanger (300) contains a working medium and exchanges heat with the high-temperature exhaust gas to raise its temperature. The regenerator (500) is connected to the inlet of the exhaust heat exchanger (300), and the heat buffer tube (600) is connected to the outlet of the exhaust heat exchanger (300) to achieve slow heating. A cooling heat exchanger (400) is connected to a regenerator (500) and a heat buffer tube (600) respectively to exchange heat with the high-temperature working medium; the exhaust heat exchanger (300) adopts a coil structure and is tightly arranged around the high-temperature exhaust gas to achieve heat exchange. The exhaust heat exchanger (300) includes an exhaust heat exchanger inlet (301) for replenishing the working medium and an exhaust heat exchanger outlet (302) for outputting the high-temperature working medium. The inner and outer sides of the exhaust heat exchanger (300) are provided with heat insulation layers (2); a turbine mechanism (4) is provided at the lower end of the coil structure, and the turbine mechanism (4) faces the high-temperature exhaust gas to drive rotation. Turbine blades (41) are provided on the turbine mechanism (4) and the turbine blades (41) are in the high-temperature exhaust gas. Driven by the air, the turbine mechanism (4) is rotated, converting wind energy into rotational mechanical energy. The center of the turbine mechanism (4) is connected to an induction device (3), which can convert the rotational mechanical energy of the turbine mechanism (4) into electrical energy. The regenerator (500) and the heat buffer tube (600) are nested on the inner ring of the exhaust heat exchanger (300). A cooling plate (1) is connected to the inner wall of the structure located on the inner side of the regenerator (500) or the heat buffer tube (600). The cooling plate (1) is connected to the induction device (3), and two symmetrical cooling heat exchangers (400) are sleeved on the inner side of the cooling plate (1). The two cooling heat exchangers (400) are respectively connected to the regenerator (500) and the heat buffer tube (600).

2. The internal combustion engine intake cooling system as described in claim 1, characterized in that: The heat exchanger (400) has two sections of exchange pipeline arranged in a back-and-forth manner. The heat exchanger (400) exchanges heat with the cooling plate (1). The heat exchanger (400) has a two-section pipeline structure, including a first heat exchanger pipeline outlet (401), a second heat exchanger pipeline inlet (404), a first heat exchanger pipeline inlet (402), and a second heat exchanger pipeline outlet (403). The first heat exchanger pipeline outlet (401) is connected to the regenerator (500), the second heat exchanger pipeline inlet (404) is connected to the heat buffer tube (600), and the outlets of the first heat exchanger pipeline inlet (402) and the second heat exchanger pipeline outlet (403) are both connected to the resonant tube (700).

3. The internal combustion engine intake cooling system as described in claim 2, characterized in that: The inductive device (3) includes: Permanent magnets (31), in multiple quantities, are connected to the inside of turbine blades (41) and rotate accordingly; The induction coils are multiple in number and are fixed inside multiple permanent magnets (31) by a core (35). The induction coils are composed of an iron core (32) and a coil (33). The wire (34) is connected to the induction coil and the cooling chip (1) respectively, so as to energize the cooling chip (1).

4. The internal combustion engine intake cooling system as described in claim 1, characterized in that: The regenerator (500) is made of N-mesh stainless steel wire mesh stacked together.

5. The internal combustion engine intake cooling system as described in claim 1, characterized in that: The heat buffer tube (600) is made of stainless steel tube with a certain taper.

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