Small visual internal combustion engine

Abstract

The present invention discloses a small visual internal combustion engine, which includes a crankcase assembly, a cylinder block, a cylinder head, a piston, a crank-connecting rod mechanism, and a valve mechanism. The cylinder head includes a bottom cover arranged on the cylinder block, a top cover arranged on the bottom cover, a first transparent block located between the bottom cover and the top cover, and a first sealing ring. The bottom cover has a combustion chamber with two ends arranged in an open shape; the top cover has a first accommodating cavity arranged in an open shape at both ends and docked with the combustion chamber, and a radial convex edge is arranged on the inner wall of one end of the first accommodating cavity away from the bottom cover; one end of the first transparent block is embedded in the first accommodating cavity and abuts against the radial convex edge, and the other end can abut against the bottom cover to close the combustion chamber; the first sealing ring is located between the first transparent block and the bottom cover. The present invention can observe the combustion process of fuel in the combustion chamber without additionally configuring a camera.

Description

Technical Field

[0001] The invention relates to the technical field of internal combustion engines, and in particular to a small visible internal combustion engine. Background Art

[0002] An internal combustion engine is a power machine that burns fuel inside the machine and converts the heat energy it releases directly into power.

[0003] When understanding the combustion process of fuel in the combustion chamber of an existing internal combustion engine, a camera is generally installed in the combustion chamber, so that the combustion process of the fuel can be observed through the images collected by the camera. However, this method of obtaining the combustion process of the fuel requires additional configuration of a camera, which requires adjustment of the overall structure of the engine, resulting in a more complicated process. Summary of the invention

[0004] The main purpose of the present invention is to provide a small visual internal combustion engine, aiming to solve the technical problem that the existing internal combustion engine needs to be additionally equipped with a camera to obtain the fuel combustion process.

[0005] In order to solve the above technical problems, the present invention proposes a small visible internal combustion engine, which includes a crankcase assembly, a cylinder block, a cylinder head, a piston, a crank-connecting rod mechanism and a valve mechanism, and is characterized in that the cylinder head includes a bottom cover arranged on the cylinder block, a top cover arranged on the bottom cover, a first transparent block located between the bottom cover and the top cover, and a first sealing ring, the bottom cover has a combustion chamber with open ends; the top cover has a first accommodating cavity with open ends and connected to the combustion chamber, and a radial convex edge is arranged on the inner wall of the end of the first accommodating cavity away from the bottom cover; one end of the first transparent block is embedded in the first accommodating cavity and abuts against the radial convex edge, and the other end can abut against the bottom cover to close the combustion chamber; the first sealing ring is located between the first transparent block and the bottom cover.

[0006] Preferably, a second accommodating cavity is formed inwardly concave on one side of the bottom cover facing the top cover around the opening end of the combustion chamber, and an end of the first transparent block facing the bottom cover can be embedded in the second accommodating cavity.

[0007] Preferably, a first annular groove is provided on the top cover around the opening end of the first accommodating cavity, and a second annular groove is provided on the bottom cover around the opening end of the second accommodating cavity, and the second annular groove is connected to the first annular groove; the cylinder head also includes a second sealing ring, and partial areas of the second sealing ring can be located in the first annular groove and the second annular groove respectively.

[0008] Preferably, a third annular groove is provided on the bottom inner wall of the second accommodating cavity on the bottom cover, and a partial area of ​​the first sealing ring can be located in the third annular groove.

[0009] Preferably, the small visual internal combustion engine also includes a safety component arranged on the top cover, and the safety component includes a second transparent block and a fixing ring, the second transparent block is located on the top cover and is used to seal the first accommodating cavity, and the fixing ring is arranged on the top cover and sleeved on the second transparent block.

[0010] Preferably, the safety component further comprises a third sealing ring located between the second transparent block and the fixing ring.

[0011] Preferably, the cylinder body has a piston hole, a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are arranged parallel to the piston hole, and the first mounting hole and the second mounting hole are connected to the combustion chamber at one end facing the bottom cover; the valve mechanism includes an intake valve arranged in the first mounting hole, an outlet valve arranged in the second mounting hole, and a camshaft for driving the intake valve and the outlet valve to move respectively, and the camshaft is drivingly connected to the output shaft of the crankcase assembly; the outer wall of the cylinder body is also provided with a first air guide hole connected to the first mounting hole and a second air guide hole connected to the second mounting hole.

[0012] Preferably, the opening ends of the first mounting hole and the second mounting hole facing the combustion chamber are both located directly below the first accommodating cavity.

[0013] Preferably, a third mounting hole communicating with the combustion chamber and capable of mounting a spark plug is provided on the circumferential outer wall of the bottom cover.

[0014] Preferably, the small visual internal combustion engine further comprises a cooling fan rotatably arranged on the cylinder body and drivingly connected to the output shaft of the crankcase assembly.

[0015] The small visual internal combustion engine provided by the embodiment of the present invention uses a bottom cover and a top cover to fix the first transparent block on the cylinder body, and uses the bottom cover to form a combustion chamber, so that the entire process of fuel ignition in the combustion chamber can be observed through the first transparent block, and there is no need to set up an additional camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a small and medium-sized visual internal combustion engine of the present invention;

[0017] Figure 2 for Figure 1 A schematic structural diagram of a small visual internal combustion engine cross-section view shown;

[0018] Figure 3 for Figure 2 The structural schematic diagram of the bottom cover shown in ;

[0019] Figure 4 for Figure 2 The structural schematic diagram of the top cover shown in;

[0020] Figure 5 for Figure 1 A schematic diagram of a partial structure of a small visual internal combustion engine is shown in;

[0021] Figure 6 for Figure 1 The structural schematic diagram of the cylinder body shown in;

[0022] Figure 7 for Figure 2 The structural schematic diagram of the valve mechanism is shown in . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] The present invention proposes a small visual internal combustion engine, such as Figure 1 and Figure 2 As shown, the small visual internal combustion engine includes a crankcase assembly 100, a cylinder block 200, a cylinder head 300, a piston 400, a crank-connecting rod mechanism 500 and a valve mechanism 600. The cylinder head 300 includes a bottom cover 310 disposed on the cylinder block 200, a top cover 320 disposed on the bottom cover 310, a first transparent block 330 and a first sealing ring 340 located between the bottom cover 310 and the top cover 320, and the bottom cover 310 has a combustion chamber 310 with two ends opened. 1; the top cover 320 has a first accommodating cavity 321 with both ends being open and connected to the combustion chamber 311, and a radial convex edge 322 is provided on the inner wall of one end of the first accommodating cavity 321 away from the bottom cover 310; one end of the first transparent block 330 is embedded in the first accommodating cavity 321 and abuts against the radial convex edge 322, and the other end can abut against the bottom cover 310 to close the combustion chamber 311; the first sealing ring 340 is located between the first transparent block 330 and the bottom cover 310.

[0025] In this embodiment, the crankcase assembly 100, the cylinder body 200, the piston 400, the crank-connecting rod mechanism 500 and the valve mechanism 600 can be arranged in accordance with the existing internal combustion engine, such as the valve mechanism 600 is arranged on the cylinder head 300, etc. The difference lies in the structure of the cylinder head 300. Specifically, the cylinder head 300 includes a bottom cover 310, a top cover 320, a first transparent block 330 and a first sealing ring 340. The bottom cover 310 is in a block shape adapted to the cylinder body 200, and the middle part of the bottom cover 310 is hollow to form a combustion chamber 311, so that the piston 400 can compress the fuel and then burn it. The top cover 320 is arranged on the bottom cover 310, and the specific fixing method can be screws. The top cover 320 has a first accommodating cavity 321 with two ends arranged in an open shape and docking with the combustion chamber 311, and a radial convex edge 322 is arranged on the inner wall of one end of the first accommodating cavity 321 away from the bottom cover 310. At this time, the radial convex edge 322 can be a plurality of blocks uniformly arranged around the circumference of the extension direction of the first accommodating cavity 321, or the radial convex edge 322 can be arranged in a ring shape inside the first accommodating cavity 321, and the shape of the radial convex edge 322 can be arranged following the shape of the cross section of the first accommodating cavity 321. One end of the first transparent block 330 is embedded in the first accommodating cavity 321 and abuts against the radial convex edge 322, and the other end can abut against the bottom cover 310. At this time, the first transparent block 330 is preferably cylindrical, and the thickness can be set according to the actual situation (such as the compression ratio of the internal combustion engine), and the first transparent block 330 is just adapted to the first accommodating cavity 321, so as to facilitate the first transparent block 330 to be fixed in the first accommodating cavity 321. As for the first transparent block 330, it can be made of quartz glass, so that the first transparent block 330 has a certain strength and high temperature resistance. The first sealing ring 340 is located between the first transparent block 330 and the bottom cover 310 and is arranged around the open end of the combustion chamber 311, so as to improve the sealing performance in the combustion chamber 311. As for the first sealing ring 340, it can be made of high temperature resistant rubber to improve the service life of the first sealing ring 340. In this embodiment, the first transparent block 330 is fixed on the cylinder body 200 by using the bottom cover 310 and the top cover 320, and the combustion chamber 311 is formed by using the bottom cover 310, so that the whole process of the fuel being ignited in the combustion chamber 311 can be observed through the first transparent block 330, and there is no need to set up a camera separately. At the same time, the internal combustion engine in this embodiment can be used in the teaching process by observing the operating status of the internal mechanism when the internal combustion engine is running at any time.

[0026] In a preferred embodiment, if Figure 2 and Figure 3As shown, a second accommodating cavity 312 is formed on one side surface of the bottom cover 310 facing the opening end of the combustion chamber 311, and the second accommodating cavity 312 can be docked with the first accommodating cavity 321, so that the end of the first transparent block 330 facing the bottom cover 310 can be embedded in the second accommodating cavity 312, which is beneficial to increase the stability of fixing the first transparent block 330.

[0027] In a preferred embodiment, if Figures 2 to 4 As shown, a first annular groove 323 is provided on the bottom cover 310 around the open end of the first accommodating cavity 321, and a second annular groove 313 is provided on the bottom cover 310 around the open end of the second accommodating cavity 312, and the second annular groove 313 can be docked with the first annular groove 323. At this time, the small visual internal combustion engine also includes a second sealing ring 350, and the second sealing ring 350 can be located in the first annular groove 323 and the second annular groove 313 respectively, and the second sealing ring 350 can also be made of high temperature resistant material. Preferably, the cross-sectional area of ​​the accommodating ring formed by the combination of the first annular groove 323 and the second annular groove 313 is smaller than the cross-sectional area of ​​the second sealing ring 350, so that it is convenient to use the top cover 320 and the top cover 320 to squeeze the second sealing ring 350, so as to improve the sealing performance of the combustion chamber 311.

[0028] In a preferred embodiment, if Figure 3 As shown, a third annular groove 314 is provided on the bottom inner wall of the second accommodating cavity 312, and a partial area of ​​the first sealing ring 340 can be accommodated in the third annular groove 314, so as to facilitate the first transparent block 330 and the bottom cover 310 to extrude the first sealing ring 340, thereby improving the sealing performance of the combustion chamber 311.

[0029] In a preferred embodiment, if Figure 1 and Figure 2 As shown, the small visual internal combustion engine also includes a safety component 700 arranged on the top cover 320, and the safety component 700 includes a second transparent block 710 and a fixing ring 720. The second transparent block 710 is arranged on the top cover 320 and blocks the open end of the first accommodating cavity 321, and is fixedly arranged on the top cover 320 and sleeved on the second transparent block 710, so that the second transparent block 710 is fixed on the top cover 320, and the fixing ring 720 is fixed on the top cover 320 by screws. Among them, the second transparent block 710 can also be made with reference to the first transparent block 330, and the structure of the fixing ring 720 can be set with reference to the structure of the top cover 320. In this embodiment, by setting the safety component 700 on the top cover 320, it is beneficial to block fragments after the first transparent block 330 is broken, so as to avoid the situation of personal injury.

[0030] In a preferred embodiment, if Figure 1 and Figure 2As shown, the side of the fixing ring 720 facing the top cover 320 has a third accommodating cavity formed by an inward depression around its open end, one end of the second transparent block 710 can be embedded in the third accommodating cavity and abut against the bottom of the third accommodating cavity, and the other end can abut against the bottom cover 310. The safety component 700 also includes a third sealing ring 730, which is located between the second transparent block 710 and the fixing ring 720. Preferably, the third sealing ring 730 is located at the bottom of the third accommodating cavity, so as to prevent the fixing ring 720 from directly squeezing the second transparent block 710, thereby protecting the second transparent block 710.

[0031] In a preferred embodiment, if Figures 5 to 7 As shown, the cylinder block 200 has a piston hole 210, a first mounting hole 220 and a second mounting hole 230, and the first mounting hole 220 and the second mounting hole 230 are arranged in parallel with the piston hole 210, that is, the first mounting hole 220 and the second mounting hole 230 are arranged in parallel along the radial direction of the piston hole 210, and the ends of the first mounting hole 220 and the second mounting hole 230 facing the bottom cover 310 are both connected to the combustion chamber 311. The valve mechanism 600 includes an intake valve 610 disposed in the first mounting hole 220, an outlet valve 620 disposed in the second mounting hole 230, and a camshaft 630 that drives the intake valve 610 and the outlet valve 620 to move respectively. At this time, in order to facilitate the in and out of the gas, it is preferred that the cylinder body 200 is further provided with a first air guide hole 240 communicating with the first mounting hole 220 and a second air guide hole 250 communicating with the second mounting hole 230, wherein the position where the first air guide hole 240 communicates with the first mounting hole 220 is located at one end of the first mounting hole 220 close to the bottom cover 310, and the position where the second air guide hole 250 communicates with the second mounting hole 230 is located at one end of the second mounting hole 230 close to the bottom cover 310. At the same time, in order to facilitate the installation of the camshaft 630, it is preferred that the cylinder body 200 is further provided with an avoidance space 260, and the avoidance space 260 is located directly below the first mounting hole 220 and the second mounting hole 230, so as to facilitate the installation of the camshaft 630 in the avoidance space 260 and drive the intake valve 610 and the outlet valve 620 to move at the same time. In this embodiment, by arranging the first mounting hole 220 and the second mounting hole 230 on the cylinder block 200 , it is helpful to reduce the overall height of the internal combustion engine, thereby facilitating observation of the fuel combustion in the combustion chamber 311 .

[0032] In a preferred embodiment, if Figure 2 As shown, in order to facilitate observation of the operating conditions of the air inlet valve 610 and the air outlet valve 620 through the first transparent block 330, the first mounting hole 220 and the second mounting hole 230 are preferably located directly below the first accommodating cavity 321, so that the operation process of the air inlet valve 610 and the air outlet valve 620 can be conveniently observed through this interface.

[0033] In a preferred embodiment, if Figure 3As shown, in order to facilitate the installation of the spark plug, a third mounting hole 315 connected to the combustion chamber 311 is provided on the circumferential outer wall of the bottom cover 310, so that the spark plug can be installed in the third mounting hole 315 and the fuel in the combustion chamber 311 can be ignited by the spark plug.

[0034] In a preferred embodiment, if Figure 1 and Figure 5 As shown, in order to facilitate the heat dissipation of the internal combustion engine, the internal combustion engine also includes a cooling fan 800, which includes a rotating shaft rotatably connected to the cylinder body 200 and a plurality of blades (not shown in the figure) arranged on the rotating shaft, and the rotating shaft is also drivingly connected to the output shaft of the crankcase assembly 100, and the specific method can be through a belt, gear or chain.

[0035] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A small visual internal combustion engine, comprising a crankcase assembly, a cylinder block, a cylinder head, a piston, a crank-connecting rod mechanism and a valve mechanism, characterized in that: The cylinder head comprises a bottom cover arranged on the cylinder body, a top cover arranged on the bottom cover, a first transparent block located between the bottom cover and the top cover, and a first sealing ring, wherein the bottom cover has a combustion chamber with two ends arranged in an open shape; the top cover has a first accommodating cavity with two ends arranged in an open shape and docking with the combustion chamber, and a radial convex edge is arranged on the inner wall of one end of the first accommodating cavity away from the bottom cover; one end of the first transparent block is embedded in the first accommodating cavity and abuts against the radial convex edge, and the other end can abut against the bottom cover to close the combustion chamber; the first sealing ring is located between the first transparent block and the bottom cover; It also includes a safety component arranged on the top cover, the safety component includes a second transparent block and a fixing ring, the second transparent block is located on the top cover and is used to block the first accommodating cavity, and the fixing ring is arranged on the top cover and sleeved on the second transparent block.

2. The small visual internal combustion engine according to claim 1, characterized in that: A second accommodating cavity is formed by being recessed inwardly on one side surface of the bottom cover facing the top cover and surrounding the opening end of the combustion chamber, and an end of the first transparent block facing the bottom cover can be embedded in the second accommodating cavity.

3. The small visual internal combustion engine according to claim 2, characterized in that: A first annular groove is arranged on the top cover around the opening end of the first accommodating cavity, and a second annular groove is arranged on the bottom cover around the opening end of the second accommodating cavity, and the second annular groove is connected to the first annular groove; the cylinder head also includes a second sealing ring, and partial areas of the second sealing ring can be located in the first annular groove and the second annular groove respectively.

4. The small visual internal combustion engine according to claim 2, characterized in that: A third annular groove is provided on the bottom inner wall of the second accommodating cavity on the bottom cover, and a partial area of ​​the first sealing ring can be located in the third annular groove.

5. The small visual internal combustion engine according to claim 1, characterized in that: The safety assembly further includes a third sealing ring located between the second transparent block and the fixing ring.

6. The small visual internal combustion engine according to claim 1, characterized in that: The cylinder body is provided with a piston hole, a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are arranged parallel to the piston hole, and the first mounting hole and the second mounting hole are connected to the combustion chamber at one end facing the bottom cover; the valve mechanism includes an intake valve arranged in the first mounting hole, an outlet valve arranged in the second mounting hole, and a camshaft for driving the intake valve and the outlet valve to move respectively, and the camshaft is drivingly connected to the output shaft of the crankcase assembly; the outer wall of the cylinder body is also provided with a first air guide hole connected to the first mounting hole and a second air guide hole connected to the second mounting hole.

7. The small visual internal combustion engine according to claim 6, characterized in that: The opening ends of the first mounting hole and the second mounting hole facing the combustion chamber are both located directly below the first accommodating cavity.

8. The small visual internal combustion engine according to claim 1, characterized in that: A third mounting hole which is in communication with the combustion chamber and can be used to mount a spark plug is arranged on the circumferential outer wall of the bottom cover.

9. The small visual internal combustion engine according to claim 1, characterized in that: It also includes a heat dissipation fan which is rotatably arranged on the cylinder body and drivingly connected to the output shaft of the crankcase assembly.

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