Cam disc engine

Abstract

The invention discloses a cam disc engine in the technical field of engines, and the cam disc engine comprises a shell, outer covers are mounted at the two ends of the shell, a rotating shaft is rotatably arranged on the two outer covers, cam discs are fixedly arranged at the two ends of the rotating shaft, and four first through grooves which are annularly distributed are formed in the shell in a penetrating manner; four first through grooves are formed in the shell, stroke pieces are arranged in the four first through grooves, the two ends of each stroke piece are in transmission connection with the two cam discs correspondingly, an air exchange mechanism used for conducting air exchange on the multiple stroke pieces is arranged on the shell, each stroke piece comprises a steel sleeve arranged in the corresponding first through groove, and two piston heads are arranged in the steel sleeves in a sliding mode; the opposite ends of the two piston heads are connected with bearing fixing frames, pin rods are arranged on the bearing fixing frames, idler wheels and deep groove ball bearings are arranged on the pin rods, curved grooves and curved surfaces are constructed on the cam disc, the idler wheels are in rolling lap joint with the curved surfaces, the deep groove ball bearings are inserted into the curved grooves in a rolling mode, and the deep groove ball bearings are inserted into the curved grooves in a rolling mode. And the shell is provided with a first communication port communicated with the steel sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of engines, in particular to a cam disc engine. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy, and twin-piston opposed engines use twin pistons to share a combustion chamber, thereby increasing the air compression ratio to improve the engine's fuel efficiency; After searching for the invention with patent publication number CN114909183B, it is found that a permanent magnet assisted opposed air engine is disclosed, which arranges permanent magnets with the same poles facing each other on the two pistons of the opposed cylinder. During the exhaust process, the two pistons approach each other, so that part of the kinetic energy is converted into magnetic potential energy. During the next intake process, the magnetic potential energy will be released together with the high-pressure air entering the cylinder to push the piston to move to do external work, thereby reducing the energy carried away by the air during the exhaust process, and further reducing energy consumption. However, its double pistons both use a crank-connecting rod structure to convert horizontal reciprocating sliding into rotational kinetic energy. When the piston moves, the rocker arm swings and drives the crankshaft to rotate. Under high-speed operation, its rotating mass is heavy, the working reciprocating inertia force is large, and the vibration excitation amount is quite large, which makes the engine have a large vibration amplitude, loud noise, and poor running stability. Therefore, the present invention proposes a cam plate engine. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the existing twin-piston opposed engine uses a crank-connecting rod method to convert the linear sliding of the piston into the rotational kinetic energy of the crankshaft, which makes the engine vibrate greatly and has poor running stability. The present invention provides a cam plate engine.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A cam plate engine comprises a shell, both ends of which are provided with outer covers, two outer covers are rotatably provided with rotating shafts, both ends of the rotating shafts are fixed with cam plates, four first through grooves distributed in an annular manner are formed through the shell, stroke parts are provided in the four first through grooves, both ends of the stroke parts are respectively connected to the two cam plates in a driving manner, a ventilation mechanism for ventilating a plurality of stroke parts is provided on the shell, the stroke part comprises a steel sleeve arranged in the first through groove, two piston heads are slidably arranged in the steel sleeve, the opposite ends of the two piston heads are connected to a bearing fixing frame, a pin rod is provided on the bearing fixing frame, a roller and a deep groove ball bearing are provided on the pin rod, a curved groove and a curved surface are constructed on the cam plate, the roller and the curved surface are rollingly overlapped, the deep groove ball bearing is rollingly inserted in the curved groove, and a first connecting port connected to the steel sleeve is provided on the shell.

[0005] Furthermore, the rotating shaft includes two crankshafts, two cam plates are fixed on the two crankshafts respectively, a second through slot is coaxially penetrated through the shell, and a gear spindle located in the second through slot is detachably installed between the two crankshafts.

[0006] Furthermore, a plug hole is coaxially opened on the crankshaft, an inner wall of the crankshaft is structured with an internal spline, and two external splines are arranged on the gear spindle. The gear spindle is inserted into the two plug holes and the two external splines are respectively plugged and matched with the two internal splines.

[0007] Furthermore, the cam disc is provided with a plurality of first weight-reducing grooves distributed in an annular shape.

[0008] Furthermore, the ventilation mechanism includes two intake pipes and two exhaust pipes, and the intake pipes and the exhaust pipes are both connected with two branch pipes, and the branch pipes of the two intake pipes and the two exhaust pipes are respectively connected with a plurality of steel sleeves.

[0009] Furthermore, there are four groups of first arcuate grooves in the outer shell, and the four groups of first arcuate grooves respectively surround the four first through grooves. The number of first arcuate grooves in the same group is two and they are respectively located at the two ends of the steel sleeve. Corresponding through holes are opened on the first arcuate grooves and the steel sleeve, and the branch pipes of the intake pipe and the exhaust pipe are connected to the first arcuate grooves.

[0010] Furthermore, four second arcuate grooves are formed in the shell, the four second arcuate grooves respectively surround the four first through grooves, the four second arcuate grooves are connected end to end in sequence to form a flow channel, and the shell is provided with a second communication port connected to the flow channel.

[0011] Furthermore, two second weight-reducing grooves are symmetrically provided on the shell.

[0012] Furthermore, the shell is provided with two channels, and both channels are communicated with the second through groove.

[0013] Furthermore, a plurality of heat dissipation fins are arranged in an array on the outer surface of the shell and at one end close to the exhaust pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, four stroke members are arranged in a ring shape in the housing and surround the rotating shaft, so that the center of gravity is concentrated. When the stroke members are in operation, the two piston heads slide synchronously in opposite directions, and the cooperation of the roller and the deep groove ball bearing with the cam plate generates a tangential force, which converts the horizontal reciprocating motion into a rotary motion. The tangential forces generated by the four stroke members are concentrated in the center of the engine, and they always offset each other and maintain balance during operation, so that the vibration level of the engine is low and the running stability is good.

[0015] 2. In the present invention, a first arc groove is formed in the outer shell surrounding the first through groove, and a plurality of arc-shaped and corresponding through holes are opened on the first arc groove and the steel sleeve, so that when air is taken in and exhausted, single-point inlet and single-point outlet are changed to annular inlet and annular outlet, thereby improving the ventilation efficiency, ensuring that the fuel in the combustion chamber is fully burned after ventilation, and ensuring the stability of engine operation.

[0016] 3. In the present invention, by opening a second arc groove surrounding the first through groove in the outer shell, a plurality of second arc grooves are connected end to end in sequence to form a flow channel, and the flow channel corresponds to the combustion chamber in the steel sleeve. Coolant can be added to the flow channel to form a cooling cycle, which can cool the engine and dissipate heat, improve the performance of the engine, and ensure its stability during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a cross-sectional view of the three-dimensional structure of the present invention; Figure 3 It is another three-dimensional structural cross-sectional view of the present invention; Figure 4 This is a three-dimensional structural diagram of the housing of the present invention; Figure 5 This is a cross-sectional view of the three-dimensional structure of the housing of the present invention; Figure 6 It is another three-dimensional structural cross-sectional view of the housing of the present invention; Figure 7 It is a three-dimensional structural diagram of the stroke member of the present invention; Figure 8 This is an exploded view of the three-dimensional structure of the rotating shaft of the present invention; Fig. 9 It is an exploded view of the three-dimensional structure of the stroke member of the present invention.

[0018] In the figure: 1, shell; 2, outer cover; 3, rotating shaft; 4, cam plate; 5, first through groove; 6, stroke member; 7, ventilation mechanism; 8, second through groove; 9, jack; 10, inner spline; 11, outer spline; 12, first weight-reducing groove; 13, first arc groove; 14, through hole; 15, second arc groove; 16, second connecting port; 17, second weight-reducing groove; 18, channel; 19, cooling fin; 301, crankshaft; 302, gear spindle; 401, curved groove; 402, curved surface; 601, steel sleeve; 602, piston head; 603, bearing fixing frame; 604, pin rod; 605, roller; 606, deep groove ball bearing; 607, first connecting port; 701, intake pipe; 702, exhaust pipe. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The cam plate engine provided in this embodiment is mainly used to solve the problem that the existing double-piston opposed engine uses a crank connecting rod to convert the linear sliding of the piston into the rotational kinetic energy of the crankshaft, resulting in large engine vibration amplitude and poor running stability, and provides the following technical solutions. Figure 1-Figure 9 Make a detailed description: A cam disc engine comprises a housing 1, both ends of the housing 1 are provided with outer covers 2, two outer covers 2 are rotatably provided with rotating shafts 3, both ends of the rotating shafts 3 are fixedly provided with cam discs 4, the housing 1 is provided with four first through slots 5 distributed in an annular pattern, the four first through slots 5 are provided with stroke members 6, both ends of the stroke members 6 are respectively connected to the two cam discs 4 by transmission, the four stroke members 6 are distributed in an array with the center of the housing 1, so that the center of gravity is maintained at the center of the housing 1, and the stability of its operation is improved, the housing 1 is provided with a ventilation mechanism 7 for ventilation of a plurality of stroke members 6, the stroke member 6 comprises a steel sleeve 601 provided in the first through slot 5, two movable members 6 are slidably provided in the steel sleeve 601 The plug head 602, the opposite ends of the two piston heads 602 are connected to the bearing fixing frame 603, the bearing fixing frame 603 is provided with a pin rod 604, the pin rod 604 is provided with a roller 605 and a deep groove ball bearing 606, the cam plate 4 is constructed with a curved groove 401 and a curved surface 402, the roller 605 and the curved surface 402 are rollingly overlapped, the deep groove ball bearing 606 is rollingly inserted in the curved groove 401, and the housing 1 is provided with a first connecting port 607 connected with the steel sleeve 601, preferably, the number of the first connecting ports 607 is eight, two are a group and the four groups correspond to the four steel sleeves 601 respectively, and the two first connecting ports 607 in the same group are respectively used to connect the injector and the spark plug, When the engine is running, fuel is sprayed into the steel sleeve 601 through the fuel injector, and the spark plug ignites the fuel. At the same time, the ventilation mechanism 7 ventilates the steel sleeve 601, and the gas is transported by ventilation so that the gas-fuel mixture can be fully burned and converted into kinetic energy. Under the kinetic energy of the fuel combustion, the two piston heads 602 located in the same steel sleeve 601 slide synchronously in the opposite direction, thereby driving the two bearing fixing frames 603 to slide synchronously in the opposite direction, so that the roller 605 rolls along the curved surface 402 on the cam plate 4, and the deep groove ball bearing 606 rolls along the curved groove 401. Preferably, the curved surface 402 includes two concave surfaces and two convex surfaces. In the initial state, the rollers on the two stroke members 6 605 rolls against two concave surfaces, and the rollers 605 on the other two stroke members 6 roll against two convex surfaces, and the contact surfaces of the four stroke members 6 are staggered against each other (i.e., the upper and lower surfaces are concave, and the left and right surfaces are convex). When the four stroke members 6 operate synchronously, tangential forces are generated under the rotational contact between the curved surface 402 and the roller 605 and the rolling contact between the deep groove ball bearing 606 and the curved groove 401. These tangential forces are applied to the rotating shaft 3 to generate torque, so that the reciprocating motion of the piston head 602 is converted into a rotational motion that drives the rotating shaft 3 to rotate. At the same time, a number of stroke members 6 are distributed in an annular shape, and they always offset each other and maintain balance during operation, so that the vibration level of the engine is low, the operation is stable, and the noise is small; In this solution, a plurality of stroke members 6 are distributed in a ring shape to surround the rotating shaft 3 so that the center of gravity is concentrated. At the same time, when the stroke member 6 is in operation, the two piston heads 602 slide synchronously in opposite directions, and the cooperation between the roller 605 and the deep groove ball bearing 606 and the cam plate 4 generates a tangential force, which converts the horizontal reciprocating motion into a rotational motion. When the four stroke members 6 are in operation, they always offset each other and maintain balance, so that the vibration level of the engine is low, the operation is stable, and the noise is small.

[0021] like Figure 8 As shown, in this embodiment, the rotating shaft 3 includes two crankshafts 301, and the two cam plates 4 are respectively fixed on the two crankshafts 301. A second through groove 8 is coaxially opened on the outer shell 1, and a gear spindle 302 located in the second through groove 8 is detachably installed between the two crankshafts 301. Since the two cam plates 4 are relatively arranged, by designing the rotating shaft 3 as two crankshafts 301, the gear spindle 302 is detachably installed between the two crankshafts 301, so that the installation between the rotating shaft 3, the cam plates 4 and the stroke member 6 is more convenient, thereby improving practicality.

[0022] like Figure 8 As shown, in this embodiment, a plug hole 9 is coaxially opened on the crankshaft 301, an inner spline 10 is constructed on the inner wall of the crankshaft 301, and two outer splines 11 are arranged on the gear spindle 302. The gear spindle 302 is inserted into the two plug holes 9 and the two outer splines 11 are respectively plugged and matched with the two inner splines 10. When installing, the gear spindle 302 is first inserted into the second through groove 8, and then the two outer covers 2 are respectively installed at the two ends of the housing 1, so that the two ends of the gear spindle 302 are respectively inserted into the plug holes 9 on the two crankshafts 301, and the two outer covers 2 are respectively installed at the two ends of the housing 1, so that the two ends of the gear spindle 302 are respectively inserted into the plug holes 9 on the two crankshafts 301, and the two outer covers 2 are respectively installed at the two ends of the housing 1. The two external splines 11 are respectively matched with the two internal splines 10. Through the spline matching of the external splines 11 and the internal splines 10, the two crankshafts 301 can be connected, so that the two crankshafts 301 rotate synchronously. It should be noted that the gear spindle 302 adopts a stepped shaft, and the two sockets 9 are constructed with stepped grooves adapted thereto, so that the gear spindle 302 can be effectively fixed after being inserted into the two crankshafts 301, and axial movement is not easy to occur. While ensuring the convenience of installation, the stability of the connection between the two crankshafts 301 can also be improved.

[0023] like Figure 7 and Figure 8 As shown, in the present embodiment, a plurality of first weight-reducing grooves 12 distributed in a ring shape are provided on the cam disc 4. Since the cam disc 4 is provided with a curved surface 402 and a curved groove 401, the cam disc 4 has a certain thickness. By providing the first weight-reducing grooves 12 on the cam disc 4, it can also play a role in reducing weight without affecting the strength of the cam disc 4, thereby reducing the overall weight of the engine.

[0024] like Figure 1As shown, in this embodiment, the ventilation mechanism 7 includes two intake pipes 701 and two exhaust pipes 702, and the intake pipes 701 and the exhaust pipes 702 are both connected with two branch pipes, and the branch pipes of the two intake pipes 701 and the two exhaust pipes 702 are respectively connected with a plurality of steel sleeves 601. By connecting the two branch pipes on the intake pipes 701 and the exhaust pipes 702 respectively, only two exhaust pipes 702 and two intake pipes 701 are needed to meet the ventilation needs of the four stroke parts 6, and the two stroke parts 6 share one intake pipe 701 or one exhaust pipe 702.

[0025] like Figure 3 and Figure 6 As shown, in this embodiment, there are four groups of first arc grooves 13 in the shell 1, and the four groups of first arc grooves 13 respectively surround the four first through grooves 5. The number of the first arc grooves 13 in the same group is two and they are respectively located at the two ends of the steel sleeve 601. The first arc grooves 13 and the steel sleeve 601 are penetrated with corresponding through holes 14, and the bifurcated pipes of the intake pipe 701 and the exhaust pipe 702 are connected to the first arc grooves 13. By opening the first arc grooves 13, and the two first arc grooves 13 in the same group act on the same first through groove 5, one first arc groove 13 is connected to the bifurcated pipe of the intake pipe 701, and the other first arc groove 13 is connected to the bifurcated pipe of the intake pipe 701. The fork pipe of the intake pipe 701 is connected to the exhaust pipe 702. Preferably, the number of the first arc-shaped grooves 13 and the through holes 14 on the steel sleeve 601 are both several and annularly distributed. When ventilation is performed, the gas flows from the fork pipe of the intake pipe 701 to one of the first arc-shaped grooves 13, and then flows through several corresponding through holes 14 in an annular direction to the steel sleeve 601. When exhausting, the gas in the steel sleeve 601 first flows in an annular direction to another first arc-shaped groove 13 through several through holes 14, and finally is discharged through the exhaust pipe 702. In the ventilation process, both the intake and exhaust are diffused and circulated in an annular direction, thereby improving the ventilation efficiency. It should be noted that, if Fig. 9 As shown, the through holes 14 at both ends of the steel sleeve 601 have a certain spacing. When the steel sleeve 601 is fully burned and the two piston heads 602 are moved away from each other to the maximum stroke, the piston heads 602 release the blockage of the through holes 14, so that ventilation is performed after the combustion chamber is fully burned, avoiding incomplete combustion caused by ventilation.

[0026] like Figure 5As shown, in this embodiment, four second arc grooves 15 are initially provided in the housing 1, and the four second arc grooves 15 respectively surround the four first through grooves 5, and the four second arc grooves 15 are sequentially connected end to end to form a flow channel, and a second communication port 16 communicating with the flow channel is provided on the housing 1. Preferably, the number of the second communication ports 16 is two and they are distributed up and down. When the stroke member 6 is in operation, fuel needs to be burned in the steel sleeve 601, and when the fuel is burned to generate kinetic energy, heat is also released, so that the temperature of the housing 1 will increase. By providing the second arc grooves 15, the four second arc grooves 15 not only surround the four first through grooves 5 , and are connected end to end in sequence to form a flow channel. The design of the flow channel can not only reduce the weight of the housing 1, but also reduce the weight of the engine as a whole. At the same time, in actual use, coolant can be added to the flow channel through one of the second connecting ports 16, and the coolant is then discharged from the other second connecting port 16, thereby forming a cooling cycle, which can cool the engine and dissipate heat, improve the performance of the engine, and ensure its stability during operation. Preferably, the flow channel is located exactly between the intake pipe 701 and the exhaust pipe 702, which just corresponds to the combustion area between the two piston heads 602, further improving the cooling and heat dissipation efficiency.

[0027] like Figure 4 and Figure 6 As shown, in this embodiment, two second weight-reducing grooves 17 are symmetrically opened on the outer shell 1. Preferably, the second weight-reducing grooves 17 are avoided from the intake pipe 701 and the exhaust pipe 702. The opened second weight-reducing grooves 17 can also play a role in weight reduction without affecting the strength of the outer shell 1, thereby reducing the overall weight of the engine.

[0028] like Figure 5 As shown, in this embodiment, two channels 18 are provided on the housing 1, and both channels 18 are connected to the second through groove 8. When the four stroke members 6 are in operation, the heat of fuel combustion will also be conducted to the second through groove 8. Through the opened channels 18, the second through groove 8 is conveniently connected to the outside world, which is convenient for ventilation and heat dissipation, thereby further improving the heat dissipation efficiency of the engine.

[0029] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, a plurality of heat dissipation fins 19 are arranged in an array on the outer surface of the shell 1 and at one end close to the exhaust pipe 702. Since the intake pipe 701 and the exhaust pipe 702 are arranged in an array, the gas will flow along the steel sleeve 601 and flow toward the exhaust pipe 702. After the fuel is burned, the gas has a certain high temperature, and the high temperature will be transmitted to the shell 1. The heat dissipation fins 19 are arranged to improve the heat dissipation efficiency of the shell 1, thereby improving the heat dissipation efficiency of the engine and ensuring the stability of the engine operation.

[0030] The working process of the present invention is as follows: four stroke parts 6 are arranged in an annular shape in the housing. When the engine is running, fuel is sprayed into the steel sleeve 601 through the fuel injector, and then the fuel is ignited by the spark plug. At the same time, the intake pipe 701 transports gas into the steel sleeve 601. The gas-fuel mixture allows the fuel to be fully burned and converted into kinetic energy during combustion. Under the kinetic energy of the fuel combustion, the two piston heads 602 located in the same steel sleeve 601 slide synchronously in the opposite direction, thereby driving the two bearing fixing frames 603 to slide synchronously in the opposite direction, so that the roller 605 rolls along the curved surface 402 on the cam plate 4, and the deep groove ball bearing 606 rolls along the curved groove 401. Since the four stroke parts 6 are arranged in an annular shape and operate synchronously, under the rotational conflict between the curved surface 402 and the roller 605 and the deep groove ball bearing 606, the deep groove ball bearing 606 rotates in the curved groove 401. The rolling friction between the bearing 606 and the curved groove 401 generates tangential forces, which are applied to the shaft 3 to generate torque, so that the reciprocating motion of the piston head 602 is converted into a rotational motion that drives the shaft 3 to rotate, thereby driving the shaft 3 to rotate. At the same time, after the fuel is burned, the exhaust gas is discharged from the exhaust pipe 702, and then the gas is transported through the intake pipe 701 to facilitate the subsequent combustion and release of power. Since the four stroke parts 6 are distributed in a ring shape, the tangential forces generated by the four stroke parts 6 are concentrated in the center of the engine, and they always offset each other and maintain balance during operation, so that the vibration level of the engine is low, the operation is smooth, and the noise is small. When the engine is running, the coolant circulates in the flow channel, which can effectively cool the engine and ensure the stability of the engine's continuous operation.

[0031] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cam disk engine, comprising a housing (1), outer covers (2) being mounted at both ends of the housing (1), rotating shafts (3) being rotatably mounted on the two outer covers (2), cam disks (4) being fixedly mounted at both ends of the rotating shaft (3), the housing (1) being provided with four first through grooves (5) distributed in an annular pattern, stroke members (6) being arranged in the four first through grooves (5), the two ends of the stroke members (6) being respectively connected in driving relation to the two cam disks (4), the housing (1) being provided with a ventilation mechanism (7) for ventilation of a plurality of the stroke members (6), characterized in that: The stroke member (6) comprises a steel sleeve (601) arranged in a first through groove (5), two piston heads (602) are slidably arranged in the steel sleeve (601), the opposite ends of the two piston heads (602) are connected to a bearing fixing frame (603), a pin rod (604) is arranged on the bearing fixing frame (603), a roller (605) and a deep groove ball bearing (606) are arranged on the pin rod (604), a curved groove (401) and a curved surface (402) are constructed on the cam plate (4), the roller (605) and the curved surface (402) are rollingly overlapped, the deep groove ball bearing (606) is rollingly inserted in the curved groove (401), and the housing (1) is provided with a first communication port (607) communicating with the steel sleeve (601).

2. The cam disc engine according to claim 1, characterized in that: The rotating shaft (3) comprises two crankshafts (301), and the two cam plates (4) are respectively fixed on the two crankshafts (301). A second through slot (8) is coaxially penetrated through the housing (1), and a gear spindle (302) located in the second through slot (8) is detachably mounted between the two crankshafts (301).

3. The cam disc engine according to claim 2, characterized in that: The crankshaft (301) is coaxially provided with an insertion hole (9), the inner wall of the crankshaft (301) is structured with an internal spline (10), the gear spindle (302) is provided with two external splines (11), the gear spindle (302) is inserted into the two insertion holes (9), and the two external splines (11) are respectively plugged into and matched with the two internal splines (10).

4. The cam disc engine according to claim 1, characterized in that: The cam plate (4) is provided with a plurality of first weight-reducing grooves (12) distributed in an annular shape.

5. The cam disc engine according to claim 1, characterized in that: The ventilation mechanism (7) comprises two intake pipes (701) and two exhaust pipes (702), each of the intake pipes (701) and the exhaust pipes (702) being connected to two branch pipes, and the branch pipes of the two intake pipes (701) and the two exhaust pipes (702) are respectively connected to a plurality of steel sleeves (601).

6. The cam disc engine according to claim 5, characterized in that: The housing (1) has four groups of first arcuate grooves (13) arranged in the beginning, the four groups of first arcuate grooves (13) respectively surrounding the four first through grooves (5), the number of the first arcuate grooves (13) in the same group being two and being respectively located at the two ends of the steel sleeve (601), the first arcuate grooves (13) and the steel sleeve (601) both being penetrated by corresponding through holes (14), and the branch pipes of the intake pipe (701) and the exhaust pipe (702) both being connected to the first arcuate grooves (13).

7. The cam disc engine according to claim 1, characterized in that: Four second arcuate grooves (15) are initially provided in the shell (1), the four second arcuate grooves (15) respectively surround the four first through grooves (5), the four second arcuate grooves (15) are connected end to end in sequence to form a flow channel, and the shell (1) is provided with a second communication port (16) that is in communication with the flow channel.

8. The cam disc engine according to claim 1, characterized in that: Two second weight-reducing grooves (17) are symmetrically provided on the housing (1).

9. The cam disc engine according to claim 1, characterized in that: The housing (1) is provided with two channels (18), and both channels (18) are in communication with the second through groove (8).

10. The cam disc engine according to claim 5, characterized in that: A plurality of heat dissipation fins (19) are arranged in an array on the outer surface of the housing (1) and at one end close to the exhaust pipe (702).

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