Air-free conjugate cam internal combustion engine

Abstract

The invention belongs to power machinery, and relates to an air-free conjugate cam internal combustion engine. An existing four-stroke internal combustion engine is composed of a crankshaft, a piston, a plurality of cylinder bodies, gears and the like, and is quite complex in structure, high in manufacturing cost, high in failure rate and large in maintenance difficulty. The invention aims to provide a straight shaft groove plug internal combustion engine which is free of a crankshaft and a gear, simple in structure, low in manufacturing cost, low in failure rate, high in output power and high in energy conversion efficiency. The internal combustion engine comprises an engine body component, an end cover component, a conjugate cam component, a tongue plug system component and a main engine outer accessory. The seven processes of rotating and acting of the conjugate cam are all completed before and after the moment that the gas tongue plug descends and is inserted into the front end of the gas groove, circulation is continuous, acting is continuous, and output power is continuous. Fuel oil and fuel gas can be combusted at the same time, and oxygen is injected for supporting combustion. The device can be used for vehicles, ships, submarines and power generation. Compared with a crankshaft piston internal combustion engine, the engine can save energy and reduce carbon by 30%.

Description

Technical Field

[0001] The invention belongs to a power machine, namely an airless conjugate cam internal combustion engine. Background Art

[0002] The existing four-stroke internal combustion engine is composed of a crankshaft, a piston, multiple cylinders, and gears. It has a very complex structure, is expensive, has a high failure rate, and is difficult to maintain. In order to save the crankshaft, people have developed products such as rotor internal combustion engines and cam internal combustion engines. However, the structures of the above products are also relatively complex, and the output power is relatively small, the energy conversion efficiency is low, and the application is limited. Summary of the invention

[0003] The purpose of the present invention is to provide a straight-shaft slot-plug internal combustion engine without a crankshaft or a gear, which has a simple structure, a low cost, a low failure rate, a large output power and a high energy conversion efficiency.

[0004] The above purpose is achieved by the following technical solutions: An airless conjugate cam internal combustion engine, characterized in that: The internal combustion engine comprises: a body component, an end cover component, a conjugate cam component, a tongue plug system component, and main engine external accessories.

[0005] The fuselage structure includes a large cylinder, on the outer peripheral wall of the large cylinder, a tongue plug chamber is welded corresponding to each pair of tongue plugs, the tongue plug chamber has a tongue plug chamber cover plate on the top and a tongue plug lifting port on the bottom; The tongue plug chamber is welded with a tongue plug shaft sleeve and an exhaust pipe; The large cylinder is processed with mounting screw holes for assembling components including but not limited to fuel injectors, oxygen injectors, spark plugs, water injectors, etc.; Devices including but not limited to a cooling water chamber, a water inlet pipe, a water outlet pipe, a machine base, etc. are welded on the outer circumferential surface and / or end surface of the large cylinder.

[0006] The end cover components are installed and fixed on the two ends of the large cylinder. The end cover components are used to close the fuselage and install and position the conjugate cam components.

[0007] The end cover components include end cover, bearing seat, bearing, oil seal, water outlet pipe, water inlet pipe, etc.

[0008] The conjugate cam components include a straight shaft, a conjugate cam, an air stop ring, an air stop plate, etc.

[0009] The components with fixed connection relationships are connected by welding, and the components with movable assembly relationships are connected by transition fit.

[0010] An annular (or arc-shaped) air-stop ring arranged along the circumferential direction on the outer edge of the gas groove is used to construct a closed movable connection between the gas groove and the inner wall of the large cylinder; a straight (or sheet-shaped, or plate-shaped) air-stop plate located at both ends of the gas groove on the outer wall of the conjugate cam is used to construct a closed movable connection between the gas groove and the inner wall of the large cylinder; the air-stop ring and the air-stop plate form a sealing ring outside the gas groove, so that the gas groove and the inner wall of the large cylinder form a cylinder that can maintain a closed state, so that it can fully and effectively perform work.

[0011] Two sections of gas grooves and two sections of control grooves are processed on the conjugate cam at positions corresponding to the two pairs of tongue plugs. The gas groove and its wheel rim, as well as the control groove and its wheel rim constitute the conjugate cam function.

[0012] The cooling system of the internal combustion engine comprises the aforementioned cooling water cavity, water inlet pipe, water outlet pipe, and a heat dissipation water cavity formed between the outer side of the straight shaft and the inner side of the conjugate cam (i.e., the position of the spoke plate) and the end cover, and an inclined water pipe arranged on the spoke plate, which is connected to the heat dissipation water cavity on both sides of the spoke plate; The cooling water chamber, water inlet pipe, water outlet pipe, heat dissipation water chamber and inclined water pipe constitute a self-driven cooling system.

[0013] The tongue plug system components are mainly composed of a gas tongue plug and a control tongue plug, which are connected to form a pair of movable tongue plugs through a tongue plug shaft; and are installed in the tongue plug shaft sleeve and the tongue plug chamber.

[0014] The accessories outside the host connected to the host end cover are: 1) A small cam that rotates coaxially with the main engine; 2) Synchronize the fuel pump, oxygen injector and electric switch fixed outside the end cover; 3) The oil pump and oil distribution tank are fixed outside the end cover.

[0015] The beneficial effect is that the seven processes of the conjugate cam rotation work adopted by the present invention are all completed in the instant that the gas tongue plug descends and inserts into the front end of the gas groove, and the cycle is continuous, the work is continuous, and the output power is continuous. The power of the airless conjugate cam internal combustion engine ranges from a few kilowatts to hundreds of thousands of kilowatts. It can burn combustible oil, combustible gas, or both fuels at the same time, and inject oxygen to assist combustion. It can be used for vehicles, ships, submarines, and power generation. It is expected that the engine can save energy and reduce carbon emissions by 30% compared with the crankshaft piston internal combustion engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional structure diagram of a second embodiment of the present invention; Figure 2 is a schematic diagram of the end surface structure of the second embodiment of the present invention; Figure 3 yes Figure 1A schematic diagram of the FF cross-sectional structure of the second embodiment of the present invention; Figure 4 yes Figure 1 A schematic diagram of the GG cross-sectional structure of the second embodiment of the present invention.

[0017] As can be seen from the figure: 10 fuselage component, 11 exhaust pipe, 12 tongue plug shaft sleeve, 13 tongue plug chamber, 14 large cylinder, 15 mounting screw hole; 20 end cover component, 21 water outlet pipe, 22 end cover, 23 bearing seat, 24 bearing, 25 oil seal, 26 water inlet pipe, 27 cooling water chamber; 30 conjugate cam member, 31 straight shaft, 32 inclined water pipe, 33 conjugate cam, 34 air stop ring, 35 gas groove, 36 control groove, 37 heat dissipation water cavity, 38 air stop plate; 40 tongue plug system components, 41 shaft cover plug, 42 hexagonal shaft, 43 gas tongue plug, 44 control tongue plug, 45 coupling; 50 main engine external accessories, 51 small cam, 52 fuel pump, 53 electric switch, 54 oil pump, 55 fuel tank. DETAILED DESCRIPTION

[0018] Example 1.

[0019] like Figure 1 As shown, the airless conjugate cam internal combustion engine described in this embodiment is divided into five major components: body component, end cover component, conjugate cam component, tongue plug system component, and main engine external accessories. The airless conjugate cam internal combustion engine has a very simple structure, which is fully automatically controlled by the cam, with very little vibration and very little mechanical friction.

[0020] Two-row internal combustion engine with airless conjugate cam. Short stroke of gas tongue plug over peak (conjugate cam far rest). Long stroke of gas tongue plug working (conjugate cam near rest).

[0021] In an airless conjugate cam internal combustion engine, the combustion gas expands to do work, driving the conjugate cam to rotate and do work. The working stroke is long (three or four times the stroke), the lever arm is long, the torque is large, the volume is small, and the power is large. For low power, a pair of small tongue plugs can be set. For high power, multiple pairs of large tongue plugs can be set, arranged at equal distances. The size of the parts and components will increase with the increase of power.

[0022] The core component of the airless conjugate cam internal combustion engine is the multifunctional conjugate cam. The cam has several gas grooves and control grooves corresponding to the number of tongue plugs. The gas grooves and the wheel rim form several sections of the cam. The control grooves and the wheel rim form several sections of the cam. The two cams are connected as one to form the conjugate cam function.

[0023] There are multiple pairs of tongues in the machine that work with the conjugate cam. One is a gas tongue and the other is a control tongue, which are connected to form a pair of dual moving tongues through the tongue shaft.

[0024] The conjugate cam rotates and automatically controls each pair of tongue plugs, one rises and one falls, one falls and one rises, in coordinated movement. The tongue plug is automatically controlled to always be in contact with the conjugate cam. The gas tongue plug automatically controls the explosion and expansion gas to not leak out, not flow back, and flow in the designed direction, driving the conjugate cam to rotate in the designed direction to do work. The exhaust gas from the front tongue plug is automatically discharged after the gas tongue plug.

[0025] The working process of airless conjugate cam internal combustion engine: First, the conjugate cam rotates in the designed direction to push the gas tongue plug down and insert it into the front end of the gas groove; Second, when the gas plug descends and inserts into the groove, the fuel injector sprays atomized fuel into the front end of the gas groove; Third, inject oxygen at the same time; Fourth, when 50-60% of the fuel is injected, the spark plug ignites and the fuel explodes; Fifth, the deflagration expansion gas flows in the designed direction under the control of the gas tongue plug, pushing the conjugate cam to rotate at high speed in the designed direction to do work and output power; Sixth, the water sprinkler sprays water, using waste heat to generate high-pressure steam to do work, reduce exhaust temperature, and cool the internal combustion engine; Seventh, after the gas tongue is plugged in, the waste gas that has been burned and exploded by the previous gas tongue plug will be automatically discharged. The exhaust pressure is low and the noise is very small.

[0026] The seven processes of the conjugate cam rotating and doing work are all completed in the instant when the gas tongue plug descends and inserts into the front end of the gas groove. The cycle continues. The work is done continuously, and the output power is continuous.

[0027] The power of the airless conjugate cam internal combustion engine ranges from a few kilowatts to hundreds of thousands of kilowatts. It can burn oil, gas, or both fuels at the same time, and inject oxygen to assist combustion. It can be used in vehicles, ships, submarines, and for power generation. It is expected that this engine can save energy and reduce carbon emissions by 30% compared to crankshaft piston internal combustion engines.

[0028] Example 2.

[0029] like Figure 1-4 As shown, this embodiment provides a prototype structure of an airless conjugate cam internal combustion engine and its working principle. The prototype is provided with two pairs of tongue plugs, which are arranged equidistantly and have a power of about 500 kilowatts. Furthermore, according to power requirements, four pairs, six pairs, eight pairs or more tongue plugs can be provided to increase the power configuration. Based on the structure described in the above embodiment, the structure of the prototype of the airless conjugate cam internal combustion engine described in this embodiment is divided into five major components: a fuselage component, an end cover component, a conjugate cam component, a tongue plug system component, and a main engine external accessory. The specific structure is as follows.

[0030] First of all, the fuselage components are used to install other components. The fuselage parts are fixed and immovable.

[0031] The fuselage is a large cylinder 14. A tongue plug chamber 13 is welded on the outer peripheral wall of the large cylinder corresponding to each pair of tongue plugs, with a tongue plug chamber cover plate on the top and a tongue plug lifting port on the bottom. The cover plate on the tongue plug chamber can be opened to assemble the tongue plugs, and the tongue plug chamber and the large cylinder are connected in a closed manner. The tongue plug chamber is welded with a tongue plug shaft sleeve 12 and an exhaust pipe 11. The tongue plug shaft sleeve is used to assemble the tongue plugs, and the exhaust pipe is used to realize the exhaust function of the internal combustion engine. The large cylinder is processed with mounting screw holes 15 for assembling components including but not limited to fuel injectors, oxygen injectors, spark plugs, water sprayers, etc., wherein: the fuel injector is used to provide fuel, the oxygen injector is used to provide combustion-supporting gas (such as oxygen, etc.), and the spark plug is used for ignition; the water sprayer is used in this embodiment or other embodiments or similar schemes to spray water or other liquids in the form of water mist into the gas groove. On the one hand, the heat generated by the deflagration can be further utilized to make the water mist generate high temperature to assist in work, and on the other hand, the sprayed water mist can also play a role in cooling the engine. In addition, the outer circumferential surface and / or end surface of the large cylinder are welded with devices including but not limited to a cooling water chamber, a water inlet pipe, a water outlet pipe, a machine base, etc. The cooling water chamber is used to provide heat dissipation for the large cylinder, and the water inlet pipe and the water outlet pipe are used to connect the components inside the large cylinder that need heat dissipation to establish a cooling water circulation.

[0032] Second, the end cover components are fixedly mounted on both ends of the fuselage large cylinder 14, and the end cover components are used to close the fuselage. Further, the end cover components are used to install the positioning conjugate cam components.

[0033] The end cover component includes an end cover 22, a bearing seat 23, a bearing 24, an oil seal 25, a water outlet pipe 21, a water inlet pipe 26, etc., and each component is assembled by welding. The end cover is used to close the large cylinder and to construct the assembly connection of the bearing seat and the bearing. The bearing is used to establish the assembly connection of the conjugate cam (and its straight shaft), and the oil seal is used for auxiliary sealing. Except for the bearing, which is rotating, the other parts of the end cover are fixed.

[0034] Third, the conjugate cam is a multifunctional core component of the airless conjugate cam internal combustion engine.

[0035] The conjugate cam component includes a straight shaft 31, a conjugate cam 33, a gas stop ring 34, a gas stop plate 38, etc. Furthermore, the components in fixed connection relationship are connected by welding, and the components in movable assembly are connected by transition fit. For example, the straight shaft and the conjugate cam are fixedly connected by welding. In addition, the annular (or arc-shaped) gas stop ring arranged along the circumferential direction on the outer edge of the gas groove is used to construct a closed movable connection between the gas groove and the inner wall of the large cylinder; the straight (or sheet-shaped, or plate-shaped) gas stop plates 38) located at both ends of the gas groove on the outer wall of the conjugate cam are used to construct a closed movable connection between the gas groove and the inner wall of the large cylinder; the gas stop ring and the gas stop plate form a sealing ring outside the gas groove, so that the gas groove and the inner wall of the large cylinder form a cylinder that can maintain a closed state, so that it can fully and effectively do work.

[0036] like Figure 3 , 4 As shown, on the conjugate cam 33, two sections of gas grooves 35 (such as Figure 3 As shown), and two sections of control grooves 36 (as Figure 4 The gas groove and its wheel rim, as well as the control groove and its wheel rim, constitute a conjugate cam function. The working principle of the conjugate cam is described as follows:

[0037] 1) The conjugate cam is a work-doing component, a power output component, and also an automatic control component in the machine;

[0038] 2) The conjugate cam 33 rotates, automatically controlling each pair of tongue plugs (gas tongue plug 43, control tongue plug 44), one rising and one falling, one falling and one rising, in coordinated motion. The automatic control tongue plug is always in contact with the conjugate cam, automatically controlling the explosion and expansion gas to flow in the designed direction, driving the conjugate cam to rotate at high speed in the designed direction to do work and output power;

[0039] 3) Conjugate cam, rotating at high speed, forming a flywheel;

[0040] 4) The steel pipes are welded obliquely on the spokes to form an inclined water pipe 32, which rotates at high speed to form a water pump, and the cooling water is circulated without a water pump;

[0041] 5) There is a deep groove for spark storage at the front end of the gas groove, and a thin steel sheet is inlaid in the deep groove. It burns to high temperature during normal operation, ignites on time, and operates without electricity;

[0042] 6) The fuel pump, oxygen injector and electric switch are fixed on the outside of the end cover. The small cam on the outside of the end cover rotates synchronously with the conjugate cam coaxially, automatically controlling the operation of the fuel pump, oxygen injector and electric switch. The pump sprays fuel on time, injects oxygen on time, and ignites on time. The water sprayer sprays water on time.

[0043] Regarding the cooling system of the internal combustion engine described in this embodiment, it includes the aforementioned cooling water chamber, water inlet pipe, water outlet pipe, and a heat dissipation water chamber 37 formed between the outer side of the straight shaft and the inner side of the conjugate cam (i.e., the position of the spoke plate) and between the end covers, and an inclined water pipe 32 arranged on the spoke plate, which connects the heat dissipation water chambers on both sides of the spoke plate; when the straight shaft and the conjugate cam rotate, the inclined water pipe is driven to rotate together, and the centrifugal force generated causes the water on one side of the spoke plate to flow to the other side; the cooling water chamber, water inlet pipe, water outlet pipe, heat dissipation water chamber, and inclined water pipe constitute a set of self-driven cooling system.

[0044] Fourth, the tongue plug system component is mainly composed of a gas tongue plug 43 and a control tongue plug 44, which are connected to form a pair of movable tongue plugs through a tongue plug shaft 42. They are installed in the tongue plug shaft sleeve 12 and the tongue plug chamber 13.

[0045] Each pair of tongue plugs rotates back and forth at a small angle under the rotation drive of the conjugate cam 33, one rises and one falls, one falls and one rises, and moves in coordination. When the gas tongue plug descends and inserts into the front end of the gas groove, it controls the flow of the explosion-expanding gas in the designed direction, and pushes the conjugate cam 33 to rotate in the designed direction to do work. The exhaust gas from the explosion of the front gas tongue plug is automatically discharged from the rear gas tongue plug. The reciprocating rotation continues, the work continues, and the output power continues.

[0046] Fifth, the accessories outside the host connected to the host end cover are: 1) A small cam 51 that rotates coaxially and synchronously with the main engine; 2) The fuel pump 52, oxygen injector and electric switch 53 fixed on the outside of the end cover; 3) The oil pump 54 and the oil distribution tank 55 fixed outside the end cover.

[0047] The rotation of the small cam 51 automatically controls the fuel pump 52 to pump fuel and inject oxygen on time, and the spark plug ignites on time. The explosion and expansion gas pushes the conjugate cam 33 to rotate and do work. The rotation of the small cam drives the oil pump to pump oil to lubricate the rotating parts and reduce mechanical friction. Other auxiliary parts that are not directly connected to the main engine are not listed in detail, and reference can be made to the relevant literature of the prior art.

[0048] Further, a specific prototype size of an airless conjugate cam internal combustion engine is as follows: Figure 3 , 4 As shown, the diameter of the large cylinder is 620 mm, the α angle is 38.2°, the β angle is 74.68°, the γ angle is 33.56°, and the length m is 165.8 mm. The above dimensions can realize the normal operation of the internal combustion engine of the embodiment.

[0049] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An airless conjugate cam internal combustion engine, characterized in that: The internal combustion engine comprises: a body component, an end cover component, a conjugate cam component, a tongue plug system component, and main engine external accessories.

2. The airless conjugate cam internal combustion engine according to claim 1, characterized in that: The fuselage component comprises a large cylinder, on the outer peripheral wall of the large cylinder, a tongue plug chamber is welded corresponding to each pair of tongue plugs, the tongue plug chamber has a tongue plug chamber cover plate on the top and a tongue plug lifting port on the bottom; the tongue plug chamber is welded with a tongue plug shaft sleeve and an exhaust pipe; The large cylinder is processed with mounting screw holes for assembling any one or several components including but not limited to a fuel injector, an oxygen injector, a spark plug, and a water injector; The outer circumferential surface and / or end surface of the large cylinder are welded with any one or more devices including but not limited to a cooling water chamber, a water inlet pipe, a water outlet pipe, and a machine base.

3. The airless conjugate cam internal combustion engine according to claim 1, characterized in that: The end cover components are installed and fixed at both ends of the large cylinder, and the end cover components are used to close the fuselage and install the positioning conjugate cam components; The end cover component comprises an end cover, a bearing seat, a bearing, an oil seal, a water outlet pipe and a water inlet pipe.

4. The airless conjugate cam internal combustion engine according to claim 1, characterized in that: The conjugate cam component comprises a straight shaft, a conjugate cam, an air stop ring and an air stop plate; The annular or arc-shaped gas stop ring arranged along the circumferential direction on the outer edge of the gas groove is used to establish a closed movable connection between the gas groove and the inner wall of the large cylinder; The straight or sheet-shaped or plate-shaped gas stoppers located at both ends of the gas groove on the outer wall of the conjugate cam are used to construct a closed movable connection between the gas groove and the inner wall of the large cylinder; The gas stop ring and the gas stop plate form a sealing ring outside the gas groove, so that the gas groove and the inner wall of the large cylinder form a cylinder that can maintain a closed state, so that it can fully and effectively do work; Two sections of gas grooves and two sections of control grooves are processed on the conjugate cam at positions corresponding to the two pairs of tongue plugs. The gas groove and its wheel rim, as well as the control groove and its wheel rim constitute the conjugate cam function.

5. An airless conjugate cam internal combustion engine according to any one of claims 1 to 4, characterized in that: The internal combustion engine is provided with a cooling system, which includes a cooling water chamber, a water inlet pipe, a water outlet pipe, a heat dissipation water chamber, and an inclined water pipe; The heat dissipation water cavity is mainly composed of a cavity formed between the outer side of the straight shaft and the inner side of the conjugate cam and between the end covers. The inclined water pipe is obliquely arranged on the spoke plate, and the inclined water pipe is connected to the heat dissipation water cavities on both sides of the spoke plate. The cooling water chamber, the water inlet pipe, the water outlet pipe, the heat dissipation water chamber and the inclined water pipe constitute a set of self-driven cooling system.

6. The airless conjugate cam internal combustion engine according to claim 1, characterized in that: The tongue plug system components are mainly composed of a gas tongue plug and a control tongue plug. The gas tongue plug and the control tongue plug are connected to form a pair of movable tongue plugs through a tongue plug shaft and are installed in the tongue plug shaft sleeve and the tongue plug chamber.

7. An airless conjugate cam internal combustion engine according to any one of claims 1 to 4 and 6, characterized in that: The host external accessories are accessories outside the host connected to the host end cover, and the host external accessories include: 1) A small cam that rotates coaxially with the main engine; 2) Synchronize the fuel pump, oxygen injector and electric switch fixed outside the end cover; 3) The oil pump and oil distribution tank are fixed outside the end cover.

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