Gas coupling Stirling generator system with double opposed generators

Abstract

The utility model relates to the technical field of generators, and provides a gas coupling double-generator opposed Stirling generator system, which comprises a pair of Stirling generators arranged oppositely; two ends of the backpressure cavity connecting pipe are respectively communicated with compression cavities of the pair of Stirling generators; and two ends of the compression cavity connecting pipe are respectively communicated with back pressure cavities of the pair of Stirling generators. According to the gas coupling double-generator opposed Stirling generator system provided by the utility model, the pair of Stirling generators are oppositely arranged, the two ends of the backpressure cavity connecting pipe are respectively communicated with the compression cavities of the pair of Stirling generators, the two ends of the compression cavity connecting pipe are respectively communicated with the backpressure cavities of the pair of Stirling generators, and internal gas is communicated; pressure waves for pushing the pistons are the same, the running frequencies of the pair of Stirling generators are completely the same, the vibration directions of the pistons are opposite, and the vibration of the two Stirling generators is counteracted, so that the pair of Stirling generators is in a cooperative running state.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to a gas-coupled dual-machine opposed Stirling generator system. Background Art

[0002] The free piston Stirling generator is a very important thermoelectric conversion device in the space energy system. Due to the particularity of the application scenario, the Stirling power generation system needs to meet the requirements of long life, high reliability, and low vibration. There are two high-frequency reciprocating pistons inside the free piston Stirling generator. The movement of the pistons will inevitably cause the generator shell to vibrate, seriously affecting the reliability and stability of the system, so the generator must be vibration-reduced.

[0003] Since the piston of a free piston Stirling generator performs high-frequency sinusoidal reciprocating motion, the vibration of the shell is also sinusoidal. Theoretically, as long as two identical Stirling generators are placed opposite to each other and the piston systems of the two generators operate in opposite directions, the vibrations of the two generators can be completely offset, thereby achieving a vibration-free system. The two opposing Stirling generators have exactly the same operating frequency and opposite piston vibration directions, and the vibrations of the two generators are offset. This state is defined as the two generators being in a coordinated operation state. In order to achieve the coordinated operation of two opposing Stirling generators, existing conventional technical solutions usually include two types.

[0004] The first is that the two Stirling generators are completely independent inside and are only mechanically connected in opposition. The principle of this technical solution is that the vibration of one generator is transmitted to the other generator through the casing, and the vibrations of the two generators affect each other and adjust and adapt to each other, which will eventually make the pistons of the two generators have the same vibration frequency and opposite vibration directions, so that the system vibrations cancel each other out. The advantage of this solution is that the generators are independent of each other and the structure is simple. What is important is that after one of them has problems such as air leakage, piston jamming, performance change, etc., the other can still work. The disadvantage is that since it is only mechanically connected, in order to achieve mutual transmission of vibration, the two generators and the fixed platform must be elastically connected and have certain requirements for the elasticity. If the elasticity is small or even rigidly connected, the vibrations of the two generators cannot be transmitted, adjusted, and adapted to each other, and the two generators cannot achieve coordinated operation to achieve the purpose of vibration reduction. In addition, since it is only mechanically coupled, the gases inside the generators are independent of each other. In theory, the two generators are completely consistent. In fact, due to processing, assembly and other reasons, there will be certain differences between the two generators. The greater the difference, the more difficult it is for the two generators to work together.

[0005] The second is that the two Stirling generators are mechanically connected while sharing an expansion chamber. After sharing the expansion chamber, the internal gas is connected, and the pressure waves that drive the pistons of the two generators to vibrate are exactly the same. The advantage of this solution is that it is easier to achieve coordinated operation of the two generators, and the two generators can be elastically or rigidly connected to the fixed platform. The disadvantage is that due to the shared expansion chamber, if one of them has problems such as air leakage, piston jamming, performance change, etc., the other cannot operate normally, greatly reducing the reliability of the system. In this technical solution, although the working chamber gas is connected, the back pressure chamber gas is still not connected. In addition, due to the high temperature of the gas in the expansion chamber, generally exceeding 600°C, it is not convenient to add pipelines to install valves, etc.

[0006] In short, the existing technical solutions have shortcomings and cannot meet the requirements of space energy systems for Stirling generators such as long life, high reliability, and low vibration. Utility Model Content

[0007] The utility model provides an air-coupled dual-machine opposed Stirling generator system, which is used to solve the defect that the existing technology cannot meet the low vibration requirements of the space energy system for the Stirling generator, realizes air coupling, and more easily achieves the technical effect of coordinated operation.

[0008] The utility model provides a gas-coupled dual-machine opposed Stirling generator system, comprising:

[0009] A pair of Stirling generators, arranged opposite to each other;

[0010] A back pressure chamber connecting pipe, both ends of which are respectively connected to a pair of compression chambers of the Stirling generator;

[0011] The compression chamber connecting pipe has two ends respectively connected to a pair of back pressure chambers of the Stirling generator.

[0012] According to a gas-coupled dual-machine opposed Stirling generator system provided by the utility model, a first valve is provided on the back pressure chamber connecting pipe.

[0013] According to a gas-coupled dual-machine opposed Stirling generator system provided by the utility model, a second valve is arranged on the compression chamber connecting pipe.

[0014] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system also includes a fixed platform, and the pair of Stirling generators are arranged on the fixed platform.

[0015] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system also includes at least two support plates, which are arranged on the fixed platform, and each of the Stirling generators is connected to at least one of the support plates.

[0016] According to a gas-coupled dual-machine opposed Stirling generator system provided by the utility model, the Stirling generator comprises:

[0017] Generator housing;

[0018] A linear motor is arranged inside the generator housing;

[0019] A power piston is connected to the mover of the linear motor; the back pressure chamber is formed between the power piston and the generator housing;

[0020] A gas distribution piston is arranged in the generator housing, and a compression chamber is formed between the gas distribution piston and the power piston; an expansion chamber is formed between the gas distribution piston and the generator housing.

[0021] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system is provided, which also includes:

[0022] A cooler is arranged in the generator housing, and the cooler is arranged on the outer periphery of the valve piston.

[0023] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system is provided, which also includes:

[0024] The heat regenerator is arranged on one side of the cooler, and the heat regenerator is coaxially arranged with the gas distribution piston.

[0025] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system also includes a heater, one end of which is arranged on the other side of the regenerator, and the other side of the heater is flush with the end of the gas distribution piston.

[0026] According to the utility model, a gas-coupled dual-machine opposed Stirling generator system is provided, which also includes:

[0027] A leaf spring is arranged in the generator housing, and one side of the leaf spring is connected to the gas distribution piston.

[0028] The utility model provides an air-coupled dual-machine opposed Stirling generator system, in which a pair of Stirling generators are relatively arranged, and the two ends of the back pressure chamber connecting pipe are respectively connected to the compression chambers of the pair of Stirling generators, and the two ends of the compression chamber connecting pipe are respectively connected to the back pressure chambers of the pair of Stirling generators. The internal gases are connected, the pressure waves that push the pistons are the same, the operating frequencies of the pair of Stirling generators are exactly the same, the vibration directions of the pistons are opposite, the vibrations of the two Stirling generators are offset, and the pair of Stirling generators are in a coordinated operation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a gas-coupled dual-machine opposed Stirling generator system provided by the utility model;

[0031] Reference numerals:

[0032] 1. Generator casing; 2. Back pressure chamber; 3. Back pressure chamber connecting pipe; 4. Compression chamber connecting pipe; 5. First valve; 6. Second valve; 7. Fixed platform; 8. Support plate; 9. Compression chamber; 10. Cooler; 11. Regenerator; 12. Heater; 13. Expansion chamber; 14. Distribution piston; 15. Power piston; 16. Linear motor; 17. Leaf spring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] Combine the following Figure 1 The utility model is described as follows: a gas-coupled dual-machine opposed Stirling generator system provided by the utility model.

[0036] First of all, it should be noted that the two opposing Stirling generators have exactly the same operating frequency and the pistons vibrate in opposite directions, and the vibrations of the two Stirling generators cancel each other out. This state is defined as the two Stirling generators being in a coordinated operating state.

[0037] like Figure 1 As shown, the gas-coupled dual-machine opposed Stirling generator system provided by the utility model includes a pair of Stirling generators, which are arranged opposite to each other; the Stirling generator includes a back pressure chamber 2 and a working chamber, and the compression chamber 9 and the expansion chamber 13 are collectively referred to as the working chamber. Among them, the back pressure chamber 2 has basically no pressure fluctuation, and the pressure fluctuation of the working chamber is relatively large, which is approximately a sinusoidal fluctuation.

[0038] The compression chambers 9 of a pair of Stirling generators are connected through the back pressure chamber connecting pipe 3 so that the gases in the back pressure chambers 2 of the two Stirling generators can be exchanged with each other; the compression chambers 9 of a pair of Stirling generators are respectively connected through the compression chamber connecting pipe 4 so that the gases in the compression chambers 9 of the two Stirling generators can flow with each other.

[0039] The gas-coupled dual-machine opposed Stirling generator system provided by the utility model has the back pressure chambers 2 of the two Stirling generators connected and the compression chambers 9 of the two Stirling generators connected, so that the operating frequencies of the two opposed Stirling generators are completely the same, the piston vibration directions are opposite, the vibrations of the two Stirling generators are offset, and the coordinated operation state of the two Stirling generators is more easily achieved, thereby improving the power generation efficiency and stability.

[0040] It should be understood that this gas-coupled connection mode enables the two Stirling generators to coordinate with each other during operation and jointly complete the gas compression and expansion process. Due to the circulation and exchange of gas, the thermal efficiency of the gas-coupled dual-machine opposed Stirling generator system is improved, thereby improving the power generation efficiency. In addition, the coordinated work between the two Stirling generators also enhances the stability of the system and reduces the risk of system downtime caused by the failure of a single generator.

[0041] In a feasible embodiment of the present utility model, a first valve 5 is provided on the back pressure chamber connecting pipe 3 , and a second valve 6 is provided on the compression chamber connecting pipe 4 .

[0042] Generally speaking, under normal circumstances, the first valve 5 and the second valve 6 are both in an open state, the gas in the compression chamber 9 can be connected, the gas in the back pressure chamber 2 can also be connected, the internal gases are connected, the pressure waves that push the pistons are the same, and it is easier to achieve coordinated operation.

[0043] In addition, when one of the Stirling generators fails, the first valve 5 and the second valve 6 can be closed, and the other Stirling generator can still work normally. At this time, only one Stirling generator is running and the vibration cannot be offset. If the vibration is too large and does not meet the use requirements, under certain circumstances, the faulty Stirling generator can be externally powered to actively drive the faulty Stirling generator to run and be used as a vibration reduction motor to reduce the vibration of the system.

[0044] In addition, during use, the pressure in the back pressure chamber 2 can be precisely controlled by adjusting the opening of the first valve 5, thereby optimizing the working conditions of the Stirling generator, which helps to improve the working efficiency and stability of the Stirling generator and reduce performance degradation caused by pressure fluctuations.

[0045] By adjusting the opening of the second valve 6, the gas flow between the two Stirling generators can be balanced to ensure that the two Stirling generators can maintain coordination when working, which helps to reduce the performance difference caused by uneven gas distribution and further improve the power generation efficiency of the entire system.

[0046] The first valve 5 and the second valve 6 may be manual valves or electromagnetic valves capable of remote control.

[0047] In a feasible embodiment of the utility model, a fixed platform 7 is further included, and a pair of Stirling generators are arranged on the fixed platform 7. The fixed platform 7 provides a solid and stable installation base for the Stirling generator. Since the Stirling generator generates vibrations and shocks during operation, if there is no stable supporting structure, these forces may cause the internal parts of the generator to loosen or be damaged, thereby affecting its normal operation. The fixed platform 7 can effectively absorb and disperse these vibrations and shocks, maintain the stability of the generator, and thus extend its service life.

[0048] In addition, the fixed platform 7 also helps to optimize the layout and installation process of the entire system. By installing a pair of Stirling generators on the same platform, the relative position between them can be easily adjusted to ensure that the connection between the back pressure chamber connecting pipe 3 and the compression chamber connecting pipe 4 is accurate. This can not only improve the installation efficiency, but also reduce performance problems caused by improper installation.

[0049] At the same time, the design of the fixed platform 7 can also take into account the heat dissipation requirements of the system. Through reasonable layout and ventilation design, it can be ensured that the Stirling generator can effectively dissipate heat during operation to avoid performance degradation or failure caused by overheating.

[0050] In a feasible embodiment of the utility model, at least two support plates 8 are further included, which are arranged on the fixed platform 7, and each Stirling generator is connected to at least one support plate 8. These support plates 8 serve as a bridge between the Stirling generator and the fixed platform 7, and play a role in dispersing the load and increasing the support area. Since the Stirling generator will generate large forces and vibrations during operation, the support plates 8 can effectively disperse these forces to a larger area, reduce the pressure on the fixed platform 7, and thus reduce the deformation and damage risks of the fixed platform 7.

[0051] At the same time, the introduction of the support plate 8 also increases the flexibility of the Stirling generator installation. By adjusting the position and angle of the support plate 8, the Stirling generator can be easily and accurately positioned on the fixed platform 7 to ensure smooth connection of the connecting pipelines. In addition, the support plate 8 can also be customized according to different models and specifications of the Stirling generator to meet the needs of different systems.

[0052] In addition, the design of the support plate 8 should also take into account its strength and rigidity to ensure that it can withstand various forces and vibrations generated by the generator during operation. By using high-strength materials and optimizing the structural design, it can be ensured that the support plate 8 has sufficient bearing capacity and stability, thereby ensuring the safe operation of the entire system.

[0053] In summary, the arrangement of the support plates 8 plays a key role in the gas-coupled dual-machine opposed Stirling generator system. They enhance the stability and reliability of the system, improve the flexibility of generator installation, and provide a strong guarantee for the safe operation of the system.

[0054] In one embodiment of the utility model, the Stirling generator includes a generator housing 1, a linear motor 16, a power piston 15 and a gas piston 14, wherein the generator housing 1, as the main structure of the entire generator, not only supports and protects the internal components, but also ensures the sealing of the gas when it circulates internally. The material and design of the housing are carefully selected and optimized to withstand various forces and temperature changes when the Stirling generator is working. The linear motor 16 is arranged inside the generator housing 1; the power piston 15 is connected to the mover of the linear motor 16; when the power piston 15 reciprocates under the push of the gas, the linear motor 16 converts this mechanical motion into electrical energy. This direct conversion method reduces the loss of energy conversion and improves the power generation efficiency.

[0055] The power piston 15 is a key moving part in the Stirling generator. It is connected to the mover of the linear motor 16 and reciprocates in the generator housing 1 under the impetus of the gas. The back pressure chamber 2 formed between the power piston and the generator housing 1 is an important part of the gas during the compression and expansion process, and its pressure change directly affects the performance of the generator.

[0056] The setting of the gas distribution piston 14 enables the Stirling generator to achieve orderly circulation of gas. It is located in the generator housing 1 and forms a compression chamber 9 between it and the power piston 15. The movement of the gas distribution piston controls the in and out of the gas, ensuring that the gas flows along a predetermined path between the compression chamber 9, the expansion chamber 13 and the back pressure chamber 2. This precise gas distribution control is the key to achieving efficient power generation. The compression chamber 9 is where the gas is compressed, while the expansion chamber 13 is where the gas expands and releases energy. The two chambers work in coordination with the gas distribution piston 14 and the power piston 15 to complete the gas compression, expansion and energy conversion process.

[0057] In one embodiment of the utility model, a cooler 10 is further included, and the cooler 10 is arranged in the generator housing 1, and the cooler 10 is arranged on the outer periphery of the valve piston 14. Such a layout design ensures that the cooler 10 can be tightly integrated into the Stirling generator structure, and can ensure that the cooler 10 can effectively dissipate heat for key components.

[0058] The gas distribution piston 14 is responsible for controlling the flow and circulation of gas in the Stirling generator, and a large amount of heat is generated during its movement. By arranging the cooler 10 on the periphery of the gas distribution piston 14, it can be ensured that the cooler 10 can directly contact the heat generated by the gas distribution piston 14, so as to quickly take it away and prevent the heat from accumulating inside the Stirling generator.

[0059] The working principle of the cooler 10 is generally to absorb and remove the heat inside the Stirling generator through a circulating cooling medium (such as water or air). When the cooling medium flows inside the cooler 10, it will exchange heat with the generator housing 1 and internal components, remove the heat and discharge it to the external environment. In this way, the temperature inside the generator can be effectively controlled to ensure that the generator can still maintain stability and efficiency when running at high load.

[0060] In one embodiment of the utility model, a regenerator 11 is further included, which is arranged on one side of the cooler 10, and the regenerator 11 is coaxially arranged with the gas distribution piston 14. The main function of the regenerator 11 is to recover and utilize the heat energy lost in the cooling process, thereby improving the thermal efficiency of the Stirling generator. During the operation of the Stirling generator, the cooler 10 will cool the gas distribution piston 14 and other key components, and a certain amount of heat energy loss will be generated in this process. By providing the regenerator 11, the lost heat energy can be recovered and reused, reducing energy waste.

[0061] In one embodiment of the utility model, a heater 12 is further included, one end of which is arranged on the other side of the regenerator 11, and the other side of the heater 12 is flush with the end of the gas distribution piston 14. The main function of the heater 12 is to provide the necessary heat energy for the Stirling generator to drive the expansion and compression of the gas during the cycle. By providing an external heat source to the heater 12, the gas can be heated and expanded, thereby generating power to drive the gas distribution piston 14 to move. This movement is then converted into electrical energy by the linear motor to realize the power generation function of the Stirling generator.

[0062] The use of the heater 12 and the regenerator 11 further improves the thermal efficiency of the Stirling generator. The regenerator 11 can recover and utilize the heat energy lost during the cooling process, while the heater is responsible for providing new heat energy to maintain the operation of the system. This cycle of heat recovery and reuse enables the Stirling generator to reduce energy loss during the energy conversion process and improve the overall power generation efficiency.

[0063] In one embodiment of the utility model, a leaf spring 17 is further included, which is arranged in the generator housing 1, and one side of the leaf spring 17 is connected to the gas distribution piston 14. The leaf spring 17 plays a supporting and guiding role for the gas distribution piston 14. Since the gas distribution piston 14 needs to frequently reciprocate in the Stirling generator, a sturdy and reliable supporting structure is required to ensure the stability and accuracy of its movement. The design of the leaf spring 17 can provide sufficient rigidity and elasticity, which can not only support the weight of the gas distribution piston 14, but also allow it to move freely within a certain range.

[0064] In summary, the utility model provides an air-coupled dual-machine opposed Stirling generator system, in which two Stirling generators are fixed to a fixed platform 7 through a support plate 8, and the compression chambers 9 of the two Stirling generators are connected by a compression chamber connecting pipe 4, and the back pressure chambers 2 of the two Stirling generators are connected by a back pressure chamber connecting pipe 3, and a first valve 5 is arranged on the back pressure chamber connecting pipe 3, and a second valve 6 is arranged on the compression chamber connecting pipe 4. Under normal circumstances, the first valve 5 and the second valve 6 are both in an open state, the internal gas can communicate, and the pressure waves that push the piston are the same, making it easier to achieve coordinated operation. When one of the Stirling generators fails, the first valve 5 and the second valve 6 can be closed, and the other Stirling generator can still work normally. At this time, only one Stirling generator is running, and the vibration cannot be offset. If the vibration is too large and does not meet the use requirements, under certain circumstances, the faulty generator can be powered externally to actively drive the motor to run, and it can be used as a vibration reduction motor to reduce the vibration of the system.

[0065] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A gas-coupled dual-machine opposed Stirling generator system, characterized in that: include: A pair of Stirling generators, arranged opposite to each other; A back pressure chamber connecting pipe (3), the two ends of which are respectively connected to the back pressure chambers (2) of a pair of Stirling generators; The compression chamber connecting pipe (4) has two ends respectively connected to a pair of compression chambers (9) of the Stirling generator.

2. The gas-coupled dual-machine opposed Stirling generator system according to claim 1, characterized in that: The back pressure chamber connecting pipe (3) is provided with a first valve (5).

3. The gas-coupled dual-machine opposed Stirling generator system according to claim 1 or 2, characterized in that: The compression chamber connecting pipe (4) is provided with a second valve (6).

4. The gas-coupled dual-machine opposed Stirling generator system according to claim 1, characterized in that: It also comprises a fixed platform (7), and the pair of Stirling generators are arranged on the fixed platform (7).

5. The gas-coupled dual-machine opposed Stirling generator system according to claim 4, characterized in that: It also comprises at least two support plates (8) which are arranged on the fixed platform (7), and each of the Stirling generators is connected to at least one of the support plates (8).

6. The gas-coupled dual-machine opposed Stirling generator system according to claim 1, characterized in that: The Stirling generator comprises: Generator housing (1); A linear motor (16) is arranged inside the generator housing (1); A power piston (15) is connected to a mover of the linear motor (16); a back pressure chamber (2) is formed between the power piston (15) and the generator housing (1); A gas distribution piston (14) is arranged in the generator housing (1), and a compression chamber (9) is formed between the gas distribution piston (14) and the power piston (15); an expansion chamber (13) is formed between the gas distribution piston (14) and the generator housing (1).

7. The gas-coupled dual-machine opposed Stirling generator system according to claim 6, characterized in that: Also includes: A cooler (10) is arranged in the generator housing (1), and the cooler (10) is arranged on the outer periphery of the gas distribution piston (14).

8. The gas-coupled dual-machine opposed Stirling generator system according to claim 7, characterized in that: Also includes: The heat regenerator (11) is arranged on one side of the cooler (10), and the heat regenerator (11) is coaxially arranged with the gas distribution piston (14).

9. The gas-coupled dual-machine opposed Stirling generator system according to claim 8, characterized in that: It also comprises a heater (12), one end of which is arranged on the other side of the regenerator (11), and the other side of the heater (12) is flush with the end of the gas distribution piston (14).

10. The gas-coupled dual-machine opposed Stirling generator system according to claim 9, characterized in that: Also includes: A leaf spring (17) is arranged in the generator housing (1), and one side of the leaf spring (17) is connected to the gas distribution piston (14).

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