Output shaft passage air distribution pressurization system of annular opposed engine

Abstract

The invention relates to the field of engines, in particular to an output shaft passage air distribution pressurization system of an annular hedging engine which comprises a piston cylinder, a power transmission shaft and an output shaft shell. A first high-temperature partition plate, an exhaust fan wheel, an air inlet fan wheel, an airflow pressurizing vortex piece, a second high-temperature partition plate and a power output gear are sequentially arranged in the output shaft shell from one end to the other end, a waste gas exhaust port and an air inlet are formed between the piston cavity and the output shaft shell, and a carburetor is arranged on the power shaft shell. Waste gas blown into the output shaft shell from the waste gas exhaust port pushes the exhaust fan wheel to rotate, the exhaust fan wheel drives the air inlet fan wheel to rotate, a throttle valve of the carburetor is opened, fresh air is sucked into the power shaft shell, an oil spray nozzle of the carburetor sprays oil mist, and the oil mist is mixed with the fresh air, extruded through an airflow pressurizing cavity and enters a piston cavity through an air inlet. Waste gas exhausted by the piston cavity is used for doing work, fresh air and oil mist are mixed, pressurized and added into the piston cylinder, the engine power can be effectively improved, and oil consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of engines, and in particular to an output shaft valve distribution and supercharging system of an annular opposed-engine. Background Art

[0002] As aircraft require higher maneuverability such as flight altitude and long range, the market demand for heavy fuel oil engines is increasing. However, due to the limitations of traditional architecture, the size and power of existing heavy fuel oil engines are difficult to meet the adaptation requirements of future aircraft.

[0003] The current solution to improve the power performance of piston engines relies on an external exhaust gas turbocharging system. This technology has always had the chronic problem of delayed power efficiency. In the development of exhaust gas turbocharging technology over the past few decades, the industry has used additive thinking to make more complex designs to improve the exhaust gas turbine power hysteresis phenomenon. This complex technical threshold is not conducive to the reliability requirements of aviation vehicles. At the same time, the complex engine body structure and auxiliary parts installation make it difficult to meet the aircraft's adaptation requirements, resulting in the need for many new models of aircraft The power system needs to be re-designed, thereby increasing the cost of aircraft design, manufacturing and use.

[0004] Therefore, a new module for piston engines, an architecture-optimized valve distribution, starting, auxiliary parts, and an adaptive shaft-fan supercharging system are urgently needed to be developed. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. The present invention provides an output shaft valve distribution and supercharging system of an annular opposed engine.

[0006] An output shaft valve boosting system of an annular opposed engine, the opposed engine comprises a piston cylinder and a power transmission shaft, including an output shaft housing, the power transmission shaft is coaxially arranged in the output shaft housing, the output shaft housing is provided with a first high-temperature baffle, an exhaust fan wheel, an intake fan wheel, an airflow boosting vortex, a second high-temperature baffle and a power output gear coaxially sleeved on the power transmission shaft from one end to the other end, the exhaust fan wheel is coaxially fixedly connected with the intake fan wheel, the first high-temperature baffle, the coaxially fixed exhaust fan wheel, the intake fan wheel and the second high-temperature baffle are all rotatably connected to the power transmission shaft, and the airflow boosting vortex is fixed in the output shaft housing and is not connected to the power transmission shaft;

[0007] An airflow boosting chamber is formed in the area between the air intake impeller and the second high-temperature baffle in the power shaft housing, and the airflow boosting scroll is arranged in the airflow boosting chamber;

[0008] An exhaust gas outlet and an air inlet are provided between the piston chamber of the piston cylinder and the output shaft housing. Both the exhaust gas outlet and the air inlet are connected to the piston chamber of the piston cylinder and the output shaft housing. The exhaust gas outlet is provided at the exhaust fan wheel position, and the air inlet is provided at a position between the airflow supercharging vortex and the second high-temperature baffle. The exhaust gas blown into the output shaft housing through the exhaust gas outlet drives the exhaust fan wheel to rotate, and the rotating exhaust fan wheel drives the air inlet fan wheel to rotate. The exhaust gas acts on the exhaust fan wheel and then is discharged from the output shaft housing.

[0009] The power shaft housing is provided with a carburetor connected to the outside world at the position of the air intake fan wheel. The carburetor is provided with a throttle valve and a fuel injector. When the air intake fan wheel rotates, the throttle valve of the carburetor opens to inhale fresh air into the power shaft housing, and the fuel injector sprays oil mist, which follows the inhaled fresh air into the output shaft housing for mixing, and is pressurized in the air flow booster chamber and enters the piston chamber of the piston cylinder through the air intake port.

[0010] Furthermore, the exhaust fan wheel and the intake fan wheel are fixed on a sleeve, and the sleeve is rotatably sleeved on the power transmission shaft through a bearing. A third high-temperature baffle is sleeved on the outer side of the sleeve and located between the exhaust fan wheel and the intake fan wheel. A bearing is provided between the third high-temperature baffle and the sleeve, and the third high-temperature baffle is fixed to the inner wall of the output shaft housing.

[0011] Furthermore, the carburetor is arranged between the air intake fan wheel and the airflow supercharger.

[0012] Furthermore, the first high-temperature baffle, the coaxially fixedly connected exhaust fan wheel and intake fan wheel, and the second high-temperature baffle are all rotatably connected to the power transmission shaft through bearings.

[0013] Furthermore, a fourth high-temperature baffle is provided on the power transmission shaft at a side of the power output gear away from the second high-temperature baffle, and the fourth high-temperature baffle is connected to the power transmission shaft via a bearing.

[0014] Furthermore, a waste discharge port is provided on the power shaft housing and located on the exhaust fan wheel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a reasonable structure, and by utilizing the exhaust gas discharged from the piston cavity to do work, fresh air and oil mist are mixed and pressurized and added to the piston cylinder, which can effectively increase engine power and reduce fuel consumption, and provide an economical and reliable piston power option for the aviation aircraft market. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an output shaft valve distribution and supercharging system of a ring-mounted opposed engine of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of an output shaft housing of an output shaft valve boosting system of an annular opposed engine of the present invention;

[0018] Figure 3 The present invention is a schematic diagram of an output shaft housing of an output shaft valve boosting system of an annular opposed engine configured with multiple piston cylinders.

[0019] As shown in the figure: 1. Piston cylinder; 2. Power transmission shaft; 3. Output shaft housing; 4. First high-temperature baffle; 5. Exhaust fan wheel; 6. Intake fan wheel; 7. Air flow booster vortex; 8. Second high-temperature baffle; 9. Air flow booster chamber; 10. Exhaust gas outlet; 11. Intake port; 12. Carburetor; 13. Exhaust port; 14. Sleeve; 15. Bearing; 16. Third high-temperature baffle; 17. Fourth high-temperature baffle; 18. Power output gear. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0023] In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] The following describes an output shaft valve distribution and supercharging system of an annular opposed-engine according to an embodiment of the present invention with reference to the accompanying drawings as an example.

[0025] An output shaft valve boosting system of an annular opposed engine, the opposed engine comprises a piston cylinder 1 and a power transmission shaft 2, and an output shaft housing 3, wherein the power transmission shaft 2 is coaxially arranged in the output shaft housing 3, and the output shaft housing 3 is provided with a first high-temperature baffle 4, an exhaust fan wheel 5, an intake fan wheel 6, an airflow boosting vortex 7, a second high-temperature baffle 8 and a power output gear 18 coaxially sleeved on the power transmission shaft 2 from one end to the other end, the exhaust fan wheel 5 is coaxially fixedly connected with the intake fan wheel 6, the first high-temperature baffle 4, the coaxially fixed exhaust fan wheel 5 and the intake fan wheel 6 and the second high-temperature baffle 8 are all rotatably connected to the power transmission shaft 2, and the airflow boosting vortex 7 is fixed in the output shaft housing 3 and is not connected to the power transmission shaft 2;

[0026] The area between the air intake impeller 6 and the second high-temperature baffle 8 in the power shaft housing 3 forms an airflow boosting chamber 9, and the airflow boosting scroll 7 is arranged in the airflow boosting chamber 9;

[0027] An exhaust gas outlet 10 and an air inlet 11 are provided between the piston chamber of the piston cylinder 1 and the output shaft housing 3. The exhaust gas outlet 10 and the air inlet 11 are both connected to the piston chamber of the piston cylinder 1 and the output shaft housing 3. The exhaust gas outlet 10 is provided at the exhaust fan wheel 5, and the air inlet 11 is provided between the airflow supercharging scroll 7 and the second high-temperature baffle 8. The exhaust gas blown into the output shaft housing 3 by the exhaust gas outlet 10 drives the exhaust fan wheel 5 to rotate, and the rotating exhaust fan wheel 5 drives the intake fan wheel 6 to rotate.

[0028] The power shaft housing 3 is provided with a carburetor 12 connected to the outside world at the position of the air intake fan wheel 6. The carburetor 12 is provided with a throttle valve and a fuel injector. When the air intake fan wheel 6 rotates, the throttle valve of the carburetor 12 opens to inhale fresh air into the power shaft housing 3, and the fuel injector sprays oil mist, which follows the inhaled fresh air into the output shaft housing 3 for mixing, and is pressurized in the air flow booster chamber 9 and enters the piston chamber of the piston cylinder 1 through the air inlet 11.

[0029] As a preferred implementation scheme of this embodiment, the exhaust fan wheel 5 and the intake fan wheel 6 are fixed on a sleeve 14, and the sleeve 14 is rotatably sleeved on the power transmission shaft 2 through a bearing 15. A third high-temperature baffle 16 is sleeved on the outer side of the sleeve 14 and located between the exhaust fan wheel 5 and the intake fan wheel 6. A bearing 15 is provided between the third high-temperature baffle 16 and the sleeve 14, and the third high-temperature baffle 16 is fixed to the inner wall of the output shaft housing 3.

[0030] As a preferred implementation scheme of this embodiment, the carburetor 12 is arranged between the air intake fan wheel 6 and the airflow supercharger 7.

[0031] As a preferred implementation scheme of this embodiment, the first high-temperature baffle 4, the coaxially fixed exhaust fan wheel 5 and the intake fan wheel 6, and the second high-temperature baffle 8 are all rotatably connected to the power transmission shaft 2 through bearings 15.

[0032] As a preferred implementation scheme of this embodiment, a fourth high-temperature baffle 17 is provided on the power transmission shaft 2 on the side of the power output gear 18 away from the second high-temperature baffle 8, and the fourth high-temperature baffle 17 is connected to the power transmission shaft 2 via a bearing 15.

[0033] As a preferred implementation scheme of this embodiment, a waste outlet 13 is provided on the power shaft housing 3 located on the exhaust fan wheel 5, and the waste outlet 13 is used to discharge the waste gas entering the exhaust fan wheel 5. The waste gas discharged from the waste outlet 13 does not interfere with the fresh air entering through the carburetor throttle 12.

[0034] The output shaft housing 3 of the present invention can be matched with multiple piston cylinders 1, such as Figure 3 shown.

[0035] In the present invention, when the work done in the piston cylinder 1 is completed, the high-pressure exhaust gas generated rushes into the output shaft housing 3 through the exhaust port 10, and drives the exhaust fan wheel 5 to rotate at a high speed. The exhaust fan wheel 5 drives the intake fan wheel 6 to rotate at a high speed through the sleeve 14. The huge back suction generated opens the throttle of the carburetor 12 on the power shaft housing 3, allowing fresh air to enter the output shaft housing 3 through the carburetor 12. At the same time, the oil nozzle of the carburetor 12 sprays oil mist in the opposite direction of the air flow of the intake fan wheel 6. Under the squeezing effect of the air flow on the air flow in the air flow boosting chamber 9 through the air flow boosting vortex 7, the mixing of oil and gas is increased, and it is sprayed into the piston cylinder from the air inlet 11 at a higher flow rate, so as to prevent the oil from mixing with the air flow. Figure 1 It can be seen from the structure above that there is only one air inlet and one exhaust port between the piston cylinder 1 and the output shaft housing 3 of this architecture, which greatly optimizes the efficiency of the engine valve system, simplifies the structure and improves the reliability of the engine;

[0036] The power transmission of the present invention: the cylinder piston acts to output power to the power transmission shaft 2 through the crank connecting rod mechanism, and the power transmission shaft 2 rotates and passes through the power output gear 18 thereon, such as Figure 1 As shown in the figure, the power output gear 18 is a bevel gear, which provides power to the auxiliary parts of the engine through the configured transmission structure, thereby simplifying the structure, reducing the weight and reducing the volume, and improving the adaptability to the matching aircraft.

[0037] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An output shaft gas distribution and supercharging system of an annular opposed engine, the opposed engine comprising a piston cylinder and a power transmission shaft, characterized in that: The invention comprises an output shaft housing, wherein the power transmission shaft is coaxially arranged in the output shaft housing, wherein the output shaft housing is provided with a first high-temperature baffle, an exhaust fan wheel, an intake fan wheel, an airflow booster vortex, a second high-temperature baffle and a power output gear coaxially sleeved on the power transmission shaft from one end to the other end, wherein the exhaust fan wheel is coaxially fixedly connected with the intake fan wheel, wherein the first high-temperature baffle, the coaxially fixedly connected exhaust fan wheel, the intake fan wheel and the second high-temperature baffle are all rotatably connected to the power transmission shaft, and the airflow booster vortex is fixed in the output shaft housing and is not connected to the power transmission shaft; An airflow boosting chamber is formed in the area between the air intake impeller and the second high-temperature baffle in the power shaft housing, and the airflow boosting scroll is arranged in the airflow boosting chamber; An exhaust gas outlet and an air inlet are provided between the piston chamber of the piston cylinder and the output shaft housing. Both the exhaust gas outlet and the air inlet are connected to the piston chamber of the piston cylinder and the output shaft housing. The exhaust gas outlet is provided at the exhaust fan wheel position, and the air inlet is provided at a position between the airflow supercharging vortex and the second high-temperature baffle. The exhaust gas blown into the output shaft housing through the exhaust gas outlet drives the exhaust fan wheel to rotate, and the rotating exhaust fan wheel drives the air inlet fan wheel to rotate. The exhaust gas acts on the exhaust fan wheel and then is discharged from the output shaft housing. The power shaft housing is provided with a carburetor connected to the outside world at the position of the air intake fan wheel. The carburetor is provided with a throttle valve and a fuel injector. When the air intake fan wheel rotates, the throttle valve of the carburetor opens to inhale fresh air into the power shaft housing, and the fuel injector sprays oil mist, which follows the inhaled fresh air into the output shaft housing for mixing, and is pressurized in the air flow booster chamber and enters the piston chamber of the piston cylinder through the air intake port.

2. The output shaft valve boosting system of the annular opposed engine according to claim 1, characterized in that: The exhaust fan wheel and the intake fan wheel are fixed on a sleeve, and the sleeve is rotatably mounted on the power transmission shaft through a bearing. A third high-temperature baffle is mounted on the outer side of the sleeve between the exhaust fan wheel and the intake fan wheel, and a bearing is arranged between the third high-temperature baffle and the sleeve. The third high-temperature baffle is fixed to the inner wall of the output shaft housing.

3. The output shaft valve boosting system of the annular opposed engine according to claim 1, characterized in that: The carburetor is arranged between the air intake fan wheel and the air flow supercharging component.

4. The output shaft valve boosting system of the annular opposed engine according to claim 1, characterized in that: The first high-temperature baffle, the coaxially fixed exhaust fan wheel and the intake fan wheel, and the second high-temperature baffle are all rotatably connected to the power transmission shaft through bearings.

5. The output shaft valve boosting system of the annular opposed engine according to claim 1, characterized in that: A fourth high-temperature baffle is provided on the power transmission shaft at a side of the power output gear away from the second high-temperature baffle, and the fourth high-temperature baffle is connected to the power transmission shaft via a bearing.

6. The output shaft valve boosting system of the annular opposed engine according to claim 1, characterized in that: The power shaft housing is provided with a waste discharge port located on the exhaust fan wheel.

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