CN114909183A

CN114909183A - Permanent magnet auxiliary opposed air engine

Info

Publication number: CN114909183A
Application number: CN202210544023.3A
Authority: CN
Inventors: 卢鉴清; 卢俊玮
Original assignee: Guangdong Yidian Technology Development Co Ltd
Current assignee: Guangdong Yidian Technology Development Co Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-08-16
Anticipated expiration: 2042-05-19
Also published as: CN114909183B

Abstract

The application belongs to the technical field of engines and discloses a permanent magnet auxiliary opposed air engine which comprises at least two crankshafts and a power device, wherein at least one opposed cylinder is arranged between any two adjacent crankshafts; the power device is used for providing high-pressure air for the opposed air cylinder to drive the opposed air cylinder to work; the opposed cylinder comprises a cylinder body, two pistons symmetrically arranged in the cylinder body, two connecting rods, at least one exhaust port and at least one air inlet port, and each piston is connected with one crankshaft through one connecting rod; the exhaust port and the air inlet are communicated with the middle part of the inner cavity of the cylinder body, permanent magnets are arranged on the opposite sides of the two pistons, and the permanent magnets of the two pistons are arranged in a manner of homopolar opposition; therefore, the energy taken away by air in the exhaust process can be reduced, and the energy consumption is further reduced.

Description

Permanent magnet auxiliary opposed air engine

Technical Field

The application relates to the technical field of engines, in particular to a permanent magnet auxiliary opposed air engine.

Background

In the prior art, a piston is driven to move by high-pressure air provided by a power device (such as an air pump) so as to push a crankshaft to rotate and do work outwards, the working process comprises an air inlet process and an air outlet process, in the air inlet process, the power device provides high-pressure air to be input into an air cylinder so as to push the piston to move and do work outwards, and in the air outlet process, the piston returns to extrude air in the air cylinder out of the air cylinder. During the exhaust process, part of the kinetic energy of the piston is converted into the kinetic energy of the air and is exhausted, thereby causing large energy loss.

Disclosure of Invention

The application aims to provide a permanent magnet auxiliary opposed air engine, which can reduce energy taken away by air in an exhaust process, thereby reducing energy consumption.

The application provides a permanent magnet auxiliary opposed air engine which comprises at least two crankshafts and a power device, wherein at least one opposed air cylinder is arranged between any two adjacent crankshafts; the power device is used for providing high-pressure air for the opposed air cylinder to drive the opposed air cylinder to work;

the opposed cylinder comprises a cylinder body, two pistons symmetrically arranged in the cylinder body, two connecting rods, at least one exhaust port and at least one air inlet port, and each piston is connected with one crankshaft through one connecting rod; exhaust port and air inlet all with the inner chamber middle part intercommunication of cylinder body, two one side that the piston is relative all is provided with the permanent magnet, and two the piston the permanent magnet homopolar is relative to be set up.

According to the permanent magnet auxiliary opposed air engine, the permanent magnets with the same poles opposite are arranged on the two pistons of the opposed air cylinder, the two pistons are close to each other in the exhaust process, so that part of kinetic energy is converted into magnetic potential energy, and when the air enters the air cylinder next time, the magnetic potential energy is released and pushes the pistons to move together with high-pressure air entering the air cylinder to do work outwards, so that the energy taken away by the air in the exhaust process is reduced, and the energy consumption is further reduced.

In some embodiments, one of the crankshafts is a first crankshaft for applying work to the outside, and the other crankshafts are in transmission connection with the first crankshaft.

In other embodiments, the engine further comprises an output shaft, the output shaft is used for doing work outwards, and each crankshaft is in transmission connection with the output shaft.

Preferably, a positioning groove is formed in the inner end face of the piston, and the permanent magnet is embedded in the positioning groove.

Preferably, an end cover is arranged on the inner end face of the piston, and the end cover closes the positioning groove.

The end cover can effectively protect the permanent magnet and prevent the permanent magnet from loosening.

Preferably, the end cap is made of a non-ferromagnetic material.

Therefore, the end cover is prevented from shielding the magnetic field of the permanent magnet, and the permanent magnets of the two pistons of the same oppositely-arranged cylinder are reliably repelled.

In some embodiments, the exhaust port and the intake port are disposed in a middle portion of the cylinder.

In other embodiments, the cylinder body is sleeved with a spiral radiator, the spiral radiator is provided with a spiral flow channel surrounding the cylinder body, both ends of the spiral radiator are provided with at least one air inlet and at least one air outlet, the middle part of the cylinder body is provided with at least one vent hole, the vent hole is communicated with the spiral flow channel and the inner cavity of the cylinder body, and the air inlet and the air outlet are communicated with the end part of the spiral flow channel.

Preferably, a plurality of air inlets and a plurality of air outlets are arranged at both ends of the spiral radiator, and the plurality of air inlets and the plurality of air outlets are alternately and uniformly arranged along the circumferential direction of the spiral radiator.

Preferably, the spiral flow passage communicates with an inner peripheral surface of the spiral radiator, and the inner peripheral surface of the spiral radiator is attached to an outer peripheral surface of the cylinder.

Has the beneficial effects that:

according to the permanent magnet auxiliary opposed air engine, the permanent magnets with the same poles opposite are arranged on the two pistons of the opposed air cylinder, the two pistons are close to each other in the exhaust process, so that partial kinetic energy is converted into magnetic potential energy, and when the air enters the air cylinder next time, the magnetic potential energy can be released and pushes the pistons to move together with high-pressure air entering the air cylinder to do work outwards, so that the energy taken away by the air in the exhaust process is reduced, and the energy consumption is further reduced.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the present application.

Drawings

Fig. 1 is a schematic structural view of a first permanent magnet assisted opposed air motor.

Fig. 2 is a schematic structural view of a second permanent magnet assisted opposed air motor.

Fig. 3 is a schematic view of an opposed cylinder.

Fig. 4 is a schematic structural view of a piston.

Fig. 5 is a schematic view of another piston structure.

Fig. 6 is a perspective view of a spiral heat sink.

Fig. 7 is a partially enlarged view of a portion S in fig. 4.

Fig. 8 is a schematic diagram of a third permanent magnet assisted opposed air motor.

Fig. 9 is a schematic view of another opposed cylinder configuration.

Description of the reference symbols: 1. a crankshaft; 2. an output shaft; 3. a power plant; 4. opposed cylinders; 401. a cylinder body; 402. a piston; 403. a connecting rod; 404. an exhaust port; 405. an air inlet; 406. a permanent magnet; 407. an end cap; 408. a screw; 409. a locking screw; 410. a first insulating layer; 411. a second thermal insulation layer; 412. a spiral heat sink; 413. a spiral flow channel; 414. a concave cavity; 415. a slide hole; 416. an iron slider; 417. an elastic member; 418. an indication lever; 419. a pointer; 420. scale marks; 421. a first nesting portion; 422. a second socketing portion; 423. a vent hole; 5. a first transmission mechanism; 6. a second transmission mechanism; 7. a gas transmission main pipe; 8. a gas delivery branch pipe; 9. and a third transmission mechanism.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 9, in some embodiments of the present application, a permanent magnet assisted opposed air engine includes at least two crankshafts 1 and a power device 3, where at least one opposed cylinder 4 is disposed between any two adjacent crankshafts 1; the power device 3 is used for supplying high-pressure air to the opposed air cylinder 4 to drive the opposed air cylinder 4 to work;

the opposed cylinder 4 includes a cylinder block 401, two pistons 402 symmetrically disposed in the cylinder block 401, two connecting rods 403, at least one exhaust port 404, and at least one intake port 405, each piston 402 being connected to a crankshaft 1 through one connecting rod 403; the exhaust port 404 and the intake port 405 are both communicated with the middle part of the inner cavity of the cylinder 401, the permanent magnets 406 are arranged on the opposite sides of the two pistons 402, and the permanent magnets 406 of the two pistons 402 are arranged in a manner of homopolar opposition (S pole opposition or N pole opposition).

The permanent magnet auxiliary opposed air engine is a two-stroke engine, in the air intake process, an air inlet 405 is opened, an air outlet 404 is closed, high-pressure air is input into an inner cavity of a cylinder body 401 through the air inlet 405 by a power device 3, so that two pistons 402 are pushed to be away from each other, the two pistons 402 drive adjacent crankshafts 1 to rotate through connecting rods 403, and each crankshaft 1 simultaneously drives an output shaft 2 to rotate; in the exhaust process, the air inlet 405 is closed, the air outlet 404 is opened, the two pistons 402 are close to each other, air is exhausted from the air outlet 404, along with the decrease of the distance between the two pistons 402, the repulsive force between the two permanent magnets 406 is increased, part of kinetic energy is converted into magnetic potential energy, in the next air inlet process, the magnetic potential energy is released and pushes the pistons 402 to move together with high-pressure air entering the air cylinders to do work outwards, and therefore energy taken away by the air in the exhaust process is reduced, and energy consumption is further reduced.

Here, electromagnetic valves may be provided at the intake port 405 and the exhaust port 404 to control opening and closing of the intake port 405 and the exhaust port 404.

In some embodiments, one of the crankshafts 1 is a first crankshaft for applying work to the outside, and the other crankshafts 1 are in transmission connection with the first crankshaft. The other crankshafts 1 and the first crankshaft may be in transmission connection by, but not limited to, a chain transmission mechanism, a gear transmission mechanism, a belt transmission mechanism, or the like, so as to transmit the torque of the other crankshafts 1 to the first crankshaft. In the embodiment, one crankshaft 1 outputs torque to the outside to drive external equipment to work, and an output shaft is not required to be arranged additionally, so that the structure is compact. For example, in the permanent magnet assisted opposed air engine shown in fig. 8, one crankshaft 1 in the middle is a first crankshaft, and the other crankshafts 1 are in transmission connection with the first crankshaft through a third transmission mechanism 9 (the third transmission mechanism 9 in the figure is a chain transmission mechanism, but is not limited thereto).

In other embodiments, the permanent magnet-assisted opposed air engine further includes an output shaft 2, the output shaft 2 is used for doing work to the outside, and each crankshaft 1 is in transmission connection with the output shaft 2. The crankshafts 1 and the output shaft 2 may be in transmission connection by, but not limited to, a chain transmission mechanism, a gear transmission mechanism, a belt transmission mechanism, or the like, so as to transmit the torque of the crankshafts 1 to the output shaft 2. For example, the permanent magnet assisted opposed air engines shown in fig. 1 and 2 are each provided with an output shaft 2, wherein each crankshaft 1 in fig. 1 is in transmission connection with the output shaft 2 through a first transmission mechanism 5 (the first transmission mechanism 5 in the drawings is a chain transmission mechanism, but is not limited thereto), and each crankshaft 1 in fig. 2 is in transmission connection with the output shaft 2 through a second transmission mechanism 6 (the second transmission mechanism 6 in the drawings is a chain transmission mechanism, but is not limited thereto).

The permanent magnet 406 may be directly fixed to the inner end surface of the piston 402 (i.e., the end surface facing the other permanent magnet 406) by screwing, welding, or snapping.

In some preferred embodiments, see fig. 4 and 5, the piston 402 is provided with a positioning groove on its inner end surface, and the permanent magnet 406 is embedded in the positioning groove. The permanent magnet 406 is embedded in the positioning groove, so that the structure compactness can be improved, the volume can be reduced, and meanwhile, the positioning groove can provide a protection effect for the permanent magnet 406.

Preferably, the permanent magnet 406 is detachably disposed in the seating groove so that it can be separately replaced when the permanent magnet 406 is demagnetized or damaged.

In fig. 4 and 5, the permanent magnet 406 has a columnar shape (such as, but not limited to, a cylindrical shape, a prismatic shape, etc.) with two ends being equal in size. However, in order to avoid an erroneous placement of the permanent magnet 406 in the direction thereof when replacing the permanent magnet 406, the permanent magnet 406 may be formed in a shape (e.g., truncated cone shape, stepped shaft shape, etc.) having different sizes at both ends, and the positioning recesses may be correspondingly formed in a shape having different sizes at both ends. Therefore, when the arrangement direction of the permanent magnet 406 is wrong, the permanent magnet cannot enter the positioning groove, the wrong direction placement is effectively avoided, and the permanent magnets 406 of the two pistons 402 of the same opposed cylinder 4 are always arranged oppositely in the same pole.

Preferably, all the permanent magnets 406 are larger in N-pole and smaller in S-pole, or larger in S-pole and smaller in N-pole, so that the permanent magnets 406 are universal, which is beneficial to reducing maintenance difficulty and maintenance cost.

It should be noted that the number and distribution positions of the permanent magnets 406 in each piston 402 can be set according to actual needs, and one or more permanent magnets 406 can be set in each piston 402. For example, in fig. 4 and 5, one permanent magnet 406 is disposed in each piston 402, and the permanent magnets 406 are disposed coaxially with the piston 402, but the number and distribution positions of the permanent magnets 406 are not limited thereto.

Preferably, referring to fig. 4 and 5, an end cap 407 is disposed on the inner end surface of the piston 402, and the end cap 407 closes the positioning groove. The permanent magnet 406 is effectively protected by the end cap 407 and the permanent magnet 406 is prevented from being loosened.

The end cap 407 is preferably removably attached to the piston 402 to facilitate removal of the permanent magnet 406. For example, in FIG. 4, end cap 407 is coupled to the inner end face of piston 402 by screws 408; for another example, in fig. 5, an outer peripheral surface of an end portion of the piston 402 is provided with a male screw, the cap 407 is provided with a corresponding female screw, the cap 407 is connected to the male screw via the female screw, and the cap 407 and the piston 402 are locked by a locking screw 409; however, the connection of the end cover 407 to the piston 402 is not limited thereto.

In some preferred embodiments, the end cap 407 is made of a non-ferromagnetic material (such as, but not limited to, aluminum, copper, ceramic, etc.). Thereby avoiding the end cover 407 shielding the magnetic field of the permanent magnet 406 and ensuring reliable repulsion between the permanent magnets 406 of the two pistons 402 of the same opposed cylinder 4.

In practical applications, as the operating time increases, the temperature of the cylinder 401 and the piston 402 increases due to friction, and when the temperature is too high, the permanent magnet 406 is easily demagnetized. For this reason, in some preferred embodiments, see fig. 4 and 5, a first insulating layer 410 is provided between the permanent magnet 406 and the inner wall of the positioning groove, and a second insulating layer 411 is provided between the end cap 407 and the permanent magnet 406. By the insulating action of first and second insulating

layers

410, 411, the amount of heat transferred to permanent magnet 406 may be reduced to reduce the risk of demagnetization of permanent magnet 406.

In some embodiments, see fig. 9, the intake port 405 and the exhaust port 404 are disposed directly in the middle of the cylinder 401 (i.e., directly attached to the side wall in the middle of the cylinder 401). The number of the air inlet 405 and the number of the air outlet 404 may be one or more, and when the number of the air inlet 405 and the air outlet 404 is plural, it is preferable that the plural air inlets 405 and the plural air outlets 404 are alternately and uniformly arranged along the circumferential direction of the cylinder 401.

In order to further reduce the risk of demagnetization of the permanent magnet 406, in other embodiments, see fig. 3, a spiral radiator 412 is sleeved outside the cylinder body 401, the spiral radiator 412 is provided with a spiral flow passage 413 surrounding the cylinder body 401, both ends of the spiral radiator 412 are provided with at least one air inlet 405 and at least one air outlet 404, the middle part of the cylinder body 401 is provided with at least one air vent 423, the air vent 423 communicates the spiral flow passage 413 with the inner cavity of the cylinder body 401, and the air inlet 405 and the air outlet 404 are both communicated with the end part of the spiral flow passage 413.

In the air inlet process, high-pressure air can flow in from two ends of the spiral flow passage 413, flows along the spiral flow passage 413 and finally enters the inner cavity of the cylinder body 401, in the process, the high-pressure air can absorb heat of the cylinder body 401, on one hand, the cylinder body 401 is cooled, so that the temperature of the permanent magnet 406 can be reduced, on the other hand, air pressure can be further improved through heat absorption, output power is improved, and energy consumption is further reduced. In the exhaust process, high-pressure air enters the spiral flow passage 413 from the vent hole 423, flows along the spiral flow passage 413 and is finally exhausted from the exhaust port 404, and in the process, the high-pressure air absorbs heat of the cylinder 401 again to cool the cylinder 401.

The number and arrangement of the exhaust ports 404 and the air inlets 405 may be set according to actual needs, and one or more of the number of the exhaust ports 404 and the number of the air inlets 405 may be set. For example, in fig. 6, both ends of the spiral heat sink 412 are provided with a plurality of air inlets 405 and a plurality of air outlets 404, and the plurality of air inlets 405 and the plurality of air outlets 404 are alternately and uniformly arranged along the circumferential direction of the spiral heat sink 412; thereby ensuring the uniformity of air flow and being beneficial to improving the smoothness of air intake and exhaust; but is not limited thereto.

Preferably, as shown in fig. 3 and 6, the spiral flow passage 413 communicates with an inner circumferential surface of the spiral radiator 412, and the inner circumferential surface of the spiral radiator 412 is attached to an outer circumferential surface of the cylinder 401. Accordingly, the air flow in the spiral flow passage 413 directly contacts the outer circumferential surface of the cylinder 401, and the heat radiation efficiency can be improved.

In practical application, when the permanent magnet 406 is demagnetized, it is generally hard to find, and for this reason, in some preferred embodiments, see fig. 7, a concave cavity 414 is disposed at an end of the piston 402 facing away from the permanent magnet 406, a sliding hole 415 axially penetrating the positioning groove and the concave cavity 414 is disposed on the piston 402, a ferrous slider 416 and an elastic member 417 are disposed in the sliding hole 415, the elastic member 417 is configured to provide an elastic force to the ferrous slider 416 facing away from the permanent magnet 406, an indication rod 418 is connected to the ferrous slider 416, one end of the indication rod 418 is fixedly connected to the ferrous slider 416, and the other end of the indication rod extends into the concave cavity 414. When the permanent magnet 406 is not demagnetized, the permanent magnet 406 can attract the ferrous slider 416, so that the ferrous slider 416 can move to the side close to the permanent magnet 406, and when the permanent magnet 406 is demagnetized, the elastic member 417 can push the permanent magnet 406 to the side far from the permanent magnet 406, so that whether the permanent magnet 406 is demagnetized can be known by observing the position of the indicating rod 418, and the permanent magnet 406 can be replaced in time. In addition, when the permanent magnet 406 needs to be replaced, the indicating lever 418 may be pressed to eject the permanent magnet 406 out of the positioning groove, so that the permanent magnet 406 may be conveniently and quickly removed.

In the present embodiment, the elastic member 417 is a spring, but is not limited thereto.

In this embodiment, the sliding hole 415 is a stepped hole with one end larger and the other end smaller, the end of the sliding hole 415 close to the permanent magnet 406 is larger and the other end is smaller, and the diameter of the iron sliding block 416 is larger than the end of the sliding hole 415 smaller, so that the iron sliding block 416 can be prevented from being separated from the sliding hole 415.

Further, a pointer 419 may be provided at an end of the indication rod 418 remote from the iron slider 416, and scale marks 420 may be provided on a circumferential surface of the cavity 414. In practical applications, the degaussing process is a process in which the magnetic force gradually decreases, and the magnetic force variation of the permanent magnet 406 can be visually observed through the pointer 419 and the scale mark 420, so that the user can determine whether to replace the permanent magnet 406.

In order to facilitate the removal of the piston 402 for maintenance, the connecting rod 403 is detachably connected to the crankshaft 1, so that the piston 402 can be extracted from the cylinder 401 after the connecting rod 403 is separated from the crankshaft 1. For example, in fig. 3, one end of the connecting rod 403, which is away from the piston 402, is provided with a first sleeving part 421 and a second sleeving part 422, the first sleeving part 421 and the second sleeving part 422 are both provided with semicircular grooves, the semicircular grooves of the first sleeving part 421 and the second sleeving part 422 enclose a connecting through hole adapted to the crankshaft 1, the crankshaft 1 passes through the connecting through hole, and the first sleeving part 421 and the second sleeving part 422 are connected by screws; therefore, when the crankshaft is required to be disassembled, the first sleeving and connecting part 421 and the second sleeving and connecting part 422 can be separated only by screwing out the screws, and the connecting rod 403 is further separated from the crankshaft 1. However, the connection between the connecting rod 403 and the crankshaft 1 is not limited thereto.

The number of the crankshafts 1 can be set according to actual needs, and two or more crankshafts can be set.

For example, in fig. 1, two crankshafts 1 are provided, and in fig. 2 and 8, three crankshafts 1 are provided.

The number of opposed cylinders 4 between two adjacent crankshafts 1 may be set as needed, and one or more cylinders may be provided. For example, in fig. 1, 2, and 8, two opposed cylinders 4 are provided between two adjacent crankshafts 1, but the present invention is not limited thereto.

In the present embodiment, the power plant 3 comprises at least one air pump.

Wherein, the power device 3 is connected with the air inlet 405 through an air pipeline. For example, in fig. 1 and 2, the gas transmission pipeline includes a gas transmission main pipe 7, and each gas inlet 405 is connected to the gas transmission main pipe 7 through a gas transmission branch pipe 8; thereby the structure of the gas transmission pipeline is simple and the laying of the pipeline is convenient.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A permanent magnet assisted opposed air engine comprises at least two crankshafts (1) and a power device (3), wherein at least one opposed cylinder (4) is arranged between any two adjacent crankshafts (1); the power device (3) is used for providing high-pressure air to the opposed air cylinder (4) to drive the opposed air cylinder (4) to work; it is characterized in that the preparation method is characterized in that,

the opposed cylinder (4) comprises a cylinder body (401), two pistons (402) symmetrically arranged in the cylinder body (401), two connecting rods (403), at least one exhaust port (404) and at least one intake port (405), and each piston (402) is connected with one crankshaft (1) through one connecting rod (403); the exhaust port (404) and the air inlet (405) are communicated with the middle of an inner cavity of the cylinder body (401), the two opposite sides of the pistons (402) are provided with permanent magnets (406), and the permanent magnets (406) of the two pistons (402) are oppositely arranged in the same pole.

2. A opposed air engine with auxiliary permanent magnet as set forth in claim 1, characterized in that one of the crankshafts (1) is a first crankshaft for applying work to the outside, and the other crankshafts (1) are in driving connection with the first crankshaft.

3. The opposed air motor with the auxiliary permanent magnet as set forth in claim 1, further comprising an output shaft (2), wherein the output shaft (2) is used for applying work to the outside, and each crankshaft (1) is in transmission connection with the output shaft (2).

4. Opposed air motor, with permanent magnet assistance, according to claim 1, characterized in that the piston (402) is provided with a positioning groove on its inner end face, in which the permanent magnet (406) is embedded.

5. Permanent magnet opposed air engine as in claim 4, characterized in that an end cap (407) is provided on the inner end face of the piston (402), the end cap (407) closing the positioning groove.

6. Permanent magnet assisted opposed air motor according to claim 5, characterized in that the end cover (407) is made of non-ferromagnetic material.

7. Permanent magnet assisted opposed air engine according to claim 1, characterized in that the exhaust port (404) and the intake port (405) are arranged in the middle of the cylinder (401).

8. A permanent magnet-assisted opposed air engine according to claim 1, wherein a spiral radiator (412) is sleeved outside the cylinder block (401), the spiral radiator (412) is provided with a spiral flow passage (413) surrounding the cylinder block (401), both ends of the spiral radiator (412) are provided with at least one air inlet (405) and at least one air outlet (404), the middle part of the cylinder block (401) is provided with at least one vent hole (423), the vent hole (423) is communicated with the spiral flow passage (413) and the inner cavity of the cylinder block (401), and the air inlet (405) and the air outlet (404) are communicated with the end part of the spiral flow passage (413).

9. The opposed-air engine with permanent magnet assist as set forth in claim 8, wherein both ends of the spiral radiator (412) are provided with a plurality of the intake ports (405) and a plurality of the exhaust ports (404), and the plurality of intake ports (405) and the plurality of exhaust ports (404) are alternately and uniformly arranged in the circumferential direction of the spiral radiator (412).

10. The opposed air motor with permanent magnet assist as set forth in claim 8, wherein the spiral flow passage (413) communicates with an inner peripheral surface of the spiral radiator (412), and the inner peripheral surface of the spiral radiator (412) is attached to an outer peripheral surface of the cylinder block (401).