Camshaft engine

Abstract

The invention discloses a camshaft engine which comprises a shell, a cam, an output shaft, a baffle, a spring, an ignition device, a gas compression device and an oil supply device. A cam bin is arranged in the shell, the cam is rotationally arranged in the cam bin, the cam comprises a rotating part and a protruding part, the output shaft is connected with the rotating part, and the protruding part abuts against the inner circumferential wall of the cam bin; the movable baffle is arranged on the inner circumferential wall of the cam bin in a sliding mode and abuts against the outer circumferential wall of the cam all the time under the action of the spring, and the movable baffle, the protruding part and the inner circumferential wall of the cam bin jointly define a combustion chamber. The ignition device is used for igniting the combustion chamber, the gas compression device is used for introducing high-pressure gas into the combustion chamber, and the oil supply device is used for spraying oil to the combustion chamber; an exhaust port is formed in the cam bin and located on the downstream side of the combustion chamber. Compared with a conventional engine, the engine combustion chamber and the gas compression chamber in the scheme are separated, the compression ratio can be better controlled, combustion kinetic energy can be effectively utilized, and the work efficiency is improved.

Description

Technical Field

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

[0002] In the prior art, the conventional engine structure is a piston structure, that is, a reciprocating piston is used to perform work through four strokes of intake, compression, power, and exhaust. In this engine structure, the combustion chamber and the gas compression chamber are integrated and share the same space. Therefore, it is difficult to better control the compression ratio, and the engine's power efficiency is low, which needs to be optimized and improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a camshaft engine.

[0004] The technical solution of the present invention is as follows: A camshaft engine, characterized in that it comprises: a housing, a cam, an output shaft, a baffle, a spring, an ignition device, a gas compression device and an oil supply device;

[0005] A cam chamber is provided inside the housing, the cam is rotatably disposed in the cam chamber, the cam comprises a rotating portion and a protruding portion, the output shaft is rotatably mounted on the housing and connected to the rotating portion, and the protruding portion abuts against the inner peripheral wall of the cam chamber;

[0006] The movable baffle is slidably arranged at the inner peripheral wall of the cam chamber and is always in contact with the outer peripheral wall of the cam under the action of the spring. The movable baffle, the protruding portion and the inner peripheral wall of the cam chamber together define a combustion chamber.

[0007] The ignition device is used to ignite the combustion chamber, the gas compression device is used to pass high-pressure gas into the combustion chamber, and the oil supply device is used to spray oil into the combustion chamber;

[0008] The cam chamber is provided with an exhaust port, and the exhaust port is located at the downstream side of the combustion chamber.

[0009] Furthermore, a baffle bin is provided on the shell, the baffle bin is connected to the cam bin, a spring is provided in the baffle bin, a part of the movable baffle is provided in the baffle bin and connected to the spring, and the other part is located in the cam bin and abuts against the outer peripheral wall of the cam.

[0010] Furthermore, a roller is provided at one end of the movable baffle close to the outer peripheral wall of the cam, and the roller abuts against the outer peripheral wall of the cam.

[0011] Furthermore, a lubricating oil through hole is provided on the movable baffle, and the lubricating oil through hole is used to guide the lubricating oil to the roller.

[0012] Furthermore, a transition chamber is provided on the shell, the transition chamber is located outside the cam chamber and is connected to the combustion chamber, the ignition device includes a spark plug, the fuel supply device includes a fuel injector, the gas compression device includes an intake valve, an air inlet and an oil inlet are provided on the transition chamber, the spark plug is arranged in the transition chamber, the fuel injector is arranged at the oil inlet, and the intake valve is arranged at the air inlet.

[0013] Furthermore, the gas compression device includes a cylinder, a piston, a connecting rod, an eccentric wheel and a driving member, the cylinder is adjacent to the transition chamber, the cylinder is provided with the intake valve, a slidable piston is provided in the cylinder, the driving member is connected to the eccentric wheel, one end of the connecting rod is hinged to the piston, and the other end is hinged to the eccentric wheel.

[0014] Furthermore, a plurality of protrusions are evenly arranged on the circumferential direction of the cam, and a plurality of movable baffles and exhaust ports corresponding to the protrusions are arranged on the cam chamber.

[0015] Furthermore, a plurality of cams are coaxially arranged on the output shaft, and the protrusions of the plurality of cams are evenly spaced circumferentially around the central axis of the output shaft. A plurality of cam chambers are provided on the housing, and the plurality of cams are matched with the plurality of cam chambers in a one-to-one manner.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Compared with conventional engines that perform work through reciprocating motion of pistons, the engine combustion chamber and gas compression chamber in this solution are separated, so the compression ratio can be better controlled, the combustion kinetic energy can be effectively utilized, and the work efficiency can be improved.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 is a schematic diagram of the present invention provided with a cam;

[0021] Figure 2 is a schematic diagram of the present invention provided with two cams;

[0022] Figure 3 is a top view of the present invention provided with two cams;

[0023] Figure 4 is a side view of the present invention provided with two cams;

[0024] Reference numerals:

[0025] 1. Shell; 11. Cam chamber; 12. Baffle chamber; 13. Transition chamber; 14. Exhaust port; 15. Air inlet; 16. Oil inlet; 17. Combustion chamber;

[0026] 2. cam; 21. protruding portion; 22. rotating portion;

[0027] 3. Output shaft;

[0028] 4. movable baffle; 41. roller; 42. lubricating oil through hole;

[0029] 5. Spring;

[0030] 6. Ignition device;

[0031] 7. Gas compression device; 71. Cylinder; 72. Piston; 73. Connecting rod; 74. Eccentric wheel;

[0032] 8. Oil supply device. DETAILED DESCRIPTION

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

[0034] 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. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0037] like Figure 1-Figure 4 The cam dual-shaft engine shown includes: a housing 1, a cam 2, an output shaft 3, a baffle, a spring 5, an ignition device 6, a gas compression device 7 and an oil supply device 8.

[0038] A cam chamber 11 is provided inside the housing 1. The cam 2 is rotatably disposed in the cam chamber 11. The cam 2 includes a rotating portion 22 and a protruding portion 21. The output shaft 3 is rotatably mounted on the housing 1 and connected to the rotating portion 22. The protruding portion 21 abuts against the inner peripheral wall of the cam chamber 11.

[0039] The movable baffle 4 is slidably arranged on the inner circumferential wall of the cam chamber 11 and is always in contact with the outer circumferential wall of the cam 2 under the action of the spring 5. In addition, the protrusion 21 of the cam 2 is in contact with the inner circumferential wall of the cam chamber 11. Therefore, the movable baffle 4, the protrusion 21 and the inner circumferential wall of the cam chamber 11 together enclose and define a closed combustion chamber 17.

[0040] The ignition device 6 is used to ignite the combustion chamber 17 , the gas compression device 7 is used to introduce high-pressure gas into the combustion chamber 17 , and the oil supply device 8 is used to spray oil into the combustion chamber 17 ; an exhaust port 14 is provided on the cam chamber 11 , and the exhaust port 14 is located on the downstream side of the combustion chamber 17 .

[0041] Therefore, when the high-pressure gas and fuel are ignited and burned in the combustion chamber 17, the high-temperature and high-pressure gas will drive the cam 2 to rotate, and the cam 2 will then drive the output shaft 3 to rotate, thereby outputting power to do work. When the cam 2 continues to rotate, the protrusion 21 bypasses the exhaust port 14, and the exhaust gas in the combustion chamber 17 is discharged to the outside through the exhaust port 14.

[0042] In specific settings, such as Figure 1 and Figure 2As shown, a baffle bin 12 is provided on the shell 1, and the baffle bin 12 is connected to the cam bin 11. A spring 5 is provided in the baffle bin 12. A part of the movable baffle 4 is provided in the baffle bin 12 and connected to the spring 5, and the other part is located in the cam bin 11 and abuts against the outer peripheral wall of the cam 2, thereby guiding the sliding of the movable baffle 4.

[0043] In addition, a roller 41 is provided at one end of the movable baffle 4 close to the outer peripheral wall of the cam 2, and the roller 41 abuts against the outer peripheral wall of the cam 2, thereby reducing the friction between the movable baffle 4 and the cam 2. Furthermore, a lubricating oil through hole 42 is provided on the movable baffle 4, and the lubricating oil through hole 42 is connected to the roller 41, so as to help guide the lubricating oil to the roller 41 to achieve lubrication of the roller 41 and reduce the friction resistance between the roller 41 and the cam 2.

[0044] like Figure 1 and Figure 3 As shown, the housing 1 is provided with a transition chamber 13, which is located outside the cam chamber 11 and communicated with the combustion chamber 17, the ignition device 6 includes a spark plug, the fuel supply device 8 includes a fuel injector, the gas compression device 7 includes an intake valve, the transition chamber 13 is provided with an intake port 15 and an oil intake port 16, the spark plug is arranged in the transition chamber 13, the fuel injector is arranged at the oil intake port 16, and the intake valve is arranged at the intake port 15. After the transition chamber 13 is provided, it is possible to prevent the protruding portion 21 of the cam 2 from contacting with the spark plug, the fuel injector and other components, thereby interfering with the rotation of the cam 2.

[0045] like Figure 1 As shown, the gas compression device 7 includes a cylinder 71, a piston 72, a connecting rod 73, an eccentric wheel 74 and a driving member. The cylinder 71 is adjacent to the transition chamber 13. An intake valve is provided on the cylinder 71. A slidable piston 72 is provided in the cylinder 71. The driving member is connected to the eccentric wheel 74. One end of the connecting rod 73 is hinged to the piston 72, and the other end is hinged to the eccentric wheel 74. Therefore, after the eccentric wheel 74 rotates, the piston 72 can be driven to move back and forth through the connecting rod 73 to achieve gas compression and ventilate the high-pressure gas to the transition chamber 13 through the intake valve.

[0046] In order to further improve the working efficiency and make the engine work smoothly, Figure 1 and Figure 2 As shown, a plurality of protrusions 21 are evenly arranged on the cam 2 in the circumferential direction, and a plurality of movable baffles 4 and exhaust ports 14 are arranged on the cam chamber 11 in one-to-one correspondence with the protrusions 21. A plurality of cams 2 are coaxially arranged on the output shaft 3, and the protrusions 21 of the plurality of cams 2 are evenly spaced and arranged circumferentially around the central axis of the output shaft 3. A plurality of cam chambers 11 are arranged on the housing 1, and the plurality of cams 2 are matched with the plurality of cam chambers 11 in one-to-one correspondence.

[0047] That is, a plurality of protrusions 21 may be provided on one cam 2, and a plurality of cams 2 may be provided on one output shaft 3. In order to improve the efficiency of the engine and make the engine work smoothly, the plurality of protrusions 21 should be evenly spaced and arranged in the circumferential direction around the central axis of the output shaft 3. Figure 1-Figure 4 In the structural example shown, two protrusions 21 are provided on a cam 2, and the two protrusions 21 are arranged radially opposite to each other. Two cams 2 are provided on an output shaft 3, and the two cams 2 are staggered at 90 degrees, so that the four protrusions 21 are evenly arranged circumferentially at intervals of 90 degrees.

[0048] Accordingly, in order to enable each protrusion 21 to play a role, a plurality of cam chambers 11 corresponding one-to-one to the cam 2 are provided on the housing 1, and each cam chamber 11 is provided with a plurality of movable baffles 4 (to form a plurality of combustion chambers corresponding to the protrusions 21) and exhaust ports 14 corresponding one-to-one to the protrusions 21. The corresponding matching position relationship among the movable baffles 4, the exhaust ports 14 and the protrusions 21 is mentioned above and will not be repeated here.

[0049] In summary, compared with conventional engines that perform work through the reciprocating motion of the piston 72, the engine combustion chamber 17 and the gas compression chamber in this solution are separated, so the compression ratio can be better controlled, the combustion kinetic energy can be effectively utilized, and the work efficiency can be improved.

[0050] Although a portion of the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations to these embodiments are within the scope of protection of the claims of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A camshaft engine, characterized in that: include: Housing, cam, output shaft, baffle, spring, ignition device, gas compression device and oil supply device; A cam chamber is provided inside the housing, the cam is rotatably disposed in the cam chamber, the cam comprises a rotating portion and a protruding portion, the output shaft is rotatably mounted on the housing and connected to the rotating portion, and the protruding portion abuts against the inner peripheral wall of the cam chamber; The movable baffle is slidably arranged at the inner peripheral wall of the cam chamber and is always in contact with the outer peripheral wall of the cam under the action of the spring. The movable baffle, the protruding portion and the inner peripheral wall of the cam chamber together define a combustion chamber. The ignition device is used to ignite the combustion chamber, the gas compression device is used to pass high-pressure gas into the combustion chamber, and the oil supply device is used to spray oil into the combustion chamber; The cam chamber is provided with an exhaust port, and the exhaust port is located at the downstream side of the combustion chamber.

2. The camshaft engine according to claim 1, characterized in that: The shell is provided with a baffle bin, which is connected to the cam bin. A spring is provided in the baffle bin. A part of the movable baffle is provided in the baffle bin and connected to the spring, and the other part is located in the cam bin and abuts against the outer peripheral wall of the cam.

3. The camshaft engine according to claim 3, characterized in that: A roller is provided at one end of the movable baffle close to the outer peripheral wall of the cam, and the roller abuts against the outer peripheral wall of the cam.

4. The camshaft engine according to claim 3, characterized in that: The movable baffle is provided with a lubricating oil through hole, and the lubricating oil through hole is used to guide the lubricating oil to the roller.

5. The camshaft engine according to claim 1, characterized in that: The shell is provided with a transition chamber, which is located outside the cam chamber and is connected to the combustion chamber. The ignition device includes a spark plug, the fuel supply device includes a fuel injector, and the gas compression device includes an intake valve. The transition chamber is provided with an air inlet and an oil inlet, the spark plug is arranged in the transition chamber, the fuel injector is arranged at the oil inlet, and the intake valve is arranged at the air inlet.

6. The camshaft engine according to claim 5, characterized in that: The gas compression device includes a cylinder, a piston, a connecting rod, an eccentric wheel and a driving member. The cylinder is adjacent to the transition chamber, the cylinder is provided with the intake valve, a slidable piston is provided in the cylinder, the driving member is connected to the eccentric wheel, one end of the connecting rod is hinged to the piston, and the other end is hinged to the eccentric wheel.

7. The camshaft engine according to claim 1, characterized in that: The cam is evenly provided with a plurality of protrusions in a circumferential direction, and the cam chamber is provided with a plurality of movable baffles and exhaust ports corresponding to the protrusions one by one.

8. The camshaft engine according to claim 1, characterized in that: A plurality of cams are coaxially arranged on the output shaft, and the protrusions of the plurality of cams are evenly spaced and arranged circumferentially around the central axis of the output shaft. A plurality of cam chambers are arranged on the housing, and the plurality of cams are matched with the plurality of cam chambers in a one-to-one correspondence.

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