Shaft-track valve distribution and supercharging system for annular opposed-piston engine

Abstract

The present invention relates to the field of engines. Disclosed is a shaft-track valve distribution and supercharging system for an annular opposed-piston engine. The opposed engine comprises a piston cylinder and a power transmission shaft. The shaft-track valve distribution and supercharging system comprises an output shaft housing, wherein a first high-temperature partition plate, a gas exhaust fan wheel, an intake fan wheel, an airflow supercharging vortex component, a second high-temperature partition plate and a power output gear are sequentially provided inside the output shaft housing from one end to the other end; an exhaust gas outlet and a gas inlet are provided between a piston cavity and the output shaft housing; the output shaft housing is provided with a carburetor; exhaust gas blown into the output shaft housing through the exhaust gas outlet drives the gas exhaust fan wheel to rotate, and the gas exhaust fan wheel drives the intake fan wheel to rotate; a throttle valve of the carburetor is opened, so that fresh air is suctioned into the output shaft housing; and a fuel injector of the carburetor sprays oil mist, which mixes with the fresh air, and the mixture is compressed in an airflow supercharging cavity and then enters the piston cavity through the gas inlet. In the present invention, the exhaust gas discharged from the piston cavity is utilized to undertake work, so that the fresh air and the oil mist are mixed and pressurized into the piston cylinder, thereby effectively improving engine power and reducing fuel consumption.

Description

Shaft track air distribution supercharging system of ring piston opposed engine TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, in particular to a shaft track air distribution supercharging system of a ring piston opposed engine. BACKGROUND

[0002] With the requirements of flight height and long-range maneuverability of aircraft, the demand for heavy oil engines in the market is increasing, but due to the limitations of traditional architecture, the size and power of existing heavy oil engines are difficult to meet the installation requirements of future aircraft.

[0003] The current piston engine relies on an external exhaust turbocharger system device to improve power performance. This technology has always had the problem of delayed power efficiency. In the development of exhaust turbocharger technology over the past few decades, the industry has used more complex designs to improve the phenomenon of exhaust turbo power delay. However, this complex technical threshold is not conducive to the reliability requirements of aircraft, and the complex engine body structure and auxiliary installation makes it difficult to meet the installation requirements of aircraft, resulting in the need for new aircraft power systems to be designed specifically, thereby increasing the cost of aircraft design, manufacturing and use.

[0004] Therefore, a new module, architecture optimized air distribution, starting, auxiliary, self-adaptive shaft track shaft fan supercharging system for piston engines needs to be developed. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a shaft track air distribution supercharging system of a ring piston opposed engine.

[0006] A shaft track air distribution supercharging system of a ring piston opposed engine, the opposed engine comprising a piston cylinder and a power transmission shaft, comprising an output shaft shell, the power transmission shaft is coaxially arranged in the output shaft shell, a first high-temperature partition plate, an exhaust fan wheel, an intake fan wheel, an airflow supercharging vortex piece, a second high-temperature partition plate and a power output gear are coaxially arranged in the output shaft shell from one end to the other end, the exhaust fan wheel and the intake fan wheel are coaxially fixedly connected, the first high-temperature partition plate, the exhaust fan wheel and the intake fan wheel fixedly connected coaxially and the second high-temperature partition plate are all rotationally connected on the power transmission shaft, and the airflow supercharging vortex piece is fixed in the output shaft shell and is not connected with the power transmission shaft.

[0007] The region between the intake fan wheel and the second high-temperature partition plate in the power shaft shell forms an airflow supercharging cavity, and the airflow supercharging vortex piece is arranged in the airflow supercharging cavity.

[0008] The piston cavity of the piston cylinder and the output shaft shell are provided with a waste gas exhaust port and an air inlet port, both of which are communicated with the piston cavity of the piston cylinder and the output shaft shell, the waste gas exhaust port is arranged at the position of the exhaust fan wheel, the air inlet port is arranged at the position between the airflow supercharging vortex piece and the second high-temperature partition plate, the exhaust gas of the waste gas exhaust port blowing into the output shaft shell drives the exhaust fan wheel to rotate, the rotating exhaust fan wheel drives the air inlet fan wheel to rotate, and the exhaust gas is discharged from the output shaft shell after acting on the exhaust fan wheel;

[0009] The power shaft shell is provided with a carburetor communicated with the outside at the position of the air inlet fan wheel, the carburetor is provided with a throttle valve and an oil nozzle, the air inlet fan wheel rotates, the throttle valve of the carburetor is opened, fresh air is sucked into the power shaft shell, the oil nozzle sprays oil mist, the oil mist enters the output shaft shell together with the sucked fresh air, and the mixed air is supercharged in the airflow supercharging cavity and then enters the piston cavity of the piston cylinder through the air inlet port.

[0010] Further, the exhaust fan wheel and the air inlet fan wheel are fixed on a sleeve, the sleeve is rotatably sleeved on the power transmission shaft through a bearing, a third high-temperature partition plate is sleeved between the exhaust fan wheel and the air inlet fan wheel on the outer side of the sleeve, bearings are arranged between the third high-temperature partition plate and the sleeve, and the third high-temperature partition plate is fixed to the inner wall of the output shaft shell.

[0011] Further, the carburetor is arranged at the position between the air inlet fan wheel and the airflow supercharging piece.

[0012] Further, the first high-temperature partition plate, the coaxially fixed exhaust fan wheel and air inlet fan wheel and the second high-temperature partition plate are rotatably connected to the power transmission shaft through bearings.

[0013] Further, the fourth high-temperature partition plate is arranged on the power transmission shaft at the position away from the second high-temperature partition plate on the side of the power output gear, and the fourth high-temperature partition plate is connected to the power transmission shaft through a bearing.

[0014] Further, the power shaft shell is provided with a waste discharge port at the position of the exhaust fan wheel.

[0015] Compared with the prior art, the application has the beneficial effects that the application has a reasonable structure, the waste gas discharged from the piston cavity is used to work, the mixed air of fresh air and oil mist is added into the piston cylinder, the engine power is effectively improved, the fuel consumption is reduced, and the application provides an economical and reliable piston power selection for the aircraft market. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic diagram of the shaft track air distribution supercharging system of a ring-placed piston opposed-piston engine according to the application;

[0017] Fig. 2 is a schematic diagram of the internal structure of the output shaft shell of the shaft track air distribution supercharging system of a ring-placed piston opposed-piston engine according to the application;

[0018] Figure 3 is a schematic diagram of the output shaft housing configuration of a plurality of pistons of a radial piston opposed-piston engine of the present application.

[0019] As shown in the figure: 1, piston cylinder; 2, power transmission shaft; 3, output shaft housing; 4, first high-temperature partition; 5, exhaust fan wheel; 6, intake fan wheel; 7, airflow supercharging scroll; 8, second high-temperature partition; 9, airflow supercharging chamber; 10, exhaust gas outlet; 11, air inlet; 12, carburetor; 13, exhaust outlet; 14, sleeve; 15, bearing; 16, third high-temperature partition; 17, fourth high-temperature partition; 18, power output gear. DETAILED DESCRIPTION

[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0022] In the description of the embodiments of the present application, if a certain feature is referred to as "provided", "fixed", "connected", "installed" on another feature, it can be directly provided, fixed, connected, installed on the other feature, or indirectly provided, fixed, connected, installed on the other feature.

[0023] In the description of the embodiments of the present application, if "several" is referred to, it means one or more, if "a plurality of" is referred to, it means two or more, and if "greater than", "less than", "exceeds" is referred to, it should be understood as not including the number, and if "above", "below", "within" is referred to, it should be understood as including the number. If "first", "second" is referred to, 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 technical features indicated or implicitly indicating the order of technical features indicated.

[0024] An axial porting supercharging system of a ring piston opposed engine is described below as an example of an embodiment of the present application.

[0025] An axial porting supercharging system of a ring piston opposed engine, the opposed engine comprising a piston cylinder 1 and a power transmission shaft 2, comprising an output shaft housing 3, the power transmission shaft 2 being coaxially arranged in the output shaft housing 3, the output shaft housing 3 being provided with a first high temperature partition 4, an exhaust fan wheel 5, an intake fan wheel 6, an airflow supercharging scroll 7, a second high temperature partition 8 and a power output gear 18 coaxially arranged on the power transmission shaft 2 from one end to the other end, the exhaust fan wheel 5 being coaxially fixedly connected with the intake fan wheel 6, the first high temperature partition 4, the coaxially fixedly connected exhaust fan wheel 5 and the intake fan wheel 6 and the second high temperature partition 8 all being rotationally connected on the power transmission shaft 2, the airflow supercharging scroll 7 being fixed in the output shaft housing 3 and not connected with the power transmission shaft 2.

[0026] The region between the intake fan wheel 6 and the second high temperature partition 8 in the power shaft housing 3 forms an airflow supercharging chamber 9, and the airflow supercharging scroll 7 is arranged in the airflow supercharging chamber 9.

[0027] The piston cavity of the piston cylinder 1 and the output shaft housing 3 are provided with an exhaust gas outlet 10 and an intake port 11, both of which are in communication with the piston cavity of the piston cylinder 1 and the output shaft housing 3, the exhaust gas outlet 10 being arranged at the position of the exhaust fan wheel 5, the intake port 11 being arranged at the position between the airflow supercharging scroll 7 and the second high temperature partition 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 in communication with the outside at the position of the intake fan wheel 6, the carburetor 12 being provided with a throttle valve and an oil injection nozzle, the intake fan wheel 6 rotates, the throttle valve of the carburetor 12 opens, new air is sucked into the power shaft housing 3, the oil injection nozzle sprays oil mist, which is mixed with the sucked new air and enters the output shaft housing 3, is supercharged in the airflow supercharging chamber 9 and enters the piston cavity of the piston cylinder 1 through the intake port 11.

[0029] As a preferred embodiment of the present embodiment, the exhaust fan wheel 5 and the intake fan wheel 6 are fixed on a sleeve 14, the sleeve 14 is rotationally sleeved on the power transmission shaft 2 through a bearing 15, a third high temperature partition 16 is sleeved on the outside of the sleeve 14 between the exhaust fan wheel 5 and the intake fan wheel 6, a bearing 15 is arranged between the third high temperature partition 16 and the sleeve 14, and the third high temperature partition 16 is fixed to the inner wall of the output shaft housing 3.

[0030] As a preferred embodiment of the present embodiment, the carburetor 12 is arranged at the position between the intake fan wheel 6 and the airflow supercharging scroll 7.

[0031] As the preferred embodiment of the present embodiment, the first high-temperature partition plate 4, the coaxially fixedly connected exhaust fan wheel 5 and the intake fan wheel 6 and the second high-temperature partition plate 8 are all rotationally connected on the power transmission shaft 2 through bearings 15.

[0032] As the preferred embodiment of the present embodiment, the fourth high-temperature partition plate 17 is arranged on the power transmission shaft 2 at the side away from the second high-temperature partition plate 8 of the power output gear 18, and the fourth high-temperature partition plate 17 is connected with the power transmission shaft 2 through a bearing 15.

[0033] As the preferred embodiment of the present embodiment, the exhaust port 13 is arranged on the power shaft housing 3 at the position of the exhaust fan wheel 5, and the exhaust port 13 is used for discharging exhaust gas into the position of the exhaust fan wheel 5, and the exhaust gas discharged by the exhaust port 13 does not interfere with the fresh air entering the carburetor throttle valve 12.

[0034] The output shaft housing 3 of the present application can be matched with multiple piston cylinders 1, as shown in Fig. 3.

[0035] In the present application, the high-pressure exhaust gas generated by the work done in the piston cylinder 1 is discharged into the output shaft housing 3 through the exhaust port 10, and drives the exhaust fan wheel 5 to rotate at high speed, and the exhaust fan wheel 5 drives the intake fan wheel 6 to rotate at high speed through the sleeve 14, and the huge back suction opens the throttle valve of the carburetor 12 on the power shaft housing 3, and lets the fresh air enter the output shaft housing 3 through the carburetor 12, and the oil nozzle of the carburetor 12 sprays oil mist in the opposite direction of the airflow of the intake fan wheel 6, and under the extrusion of the airflow by the airflow booster vortex piece 7 in the airflow booster cavity 9, the oil-gas mixture is increased, and is sprayed into the piston cylinder at a high flow rate from the intake port 11. As can be seen from the structure in Fig. 1, the piston cylinder 1 and the output shaft housing 3 of the structure only have one intake port and one exhaust port, 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 application: the cylinder piston action outputs power to the power transmission shaft 2 through the crank connecting rod mechanism, the power transmission shaft 2 rotates, and through the power output gear 18 thereon, as shown in Fig. 1, the power output gear 18 is a bevel gear which provides power to the auxiliary components of the engine through the configured transmission structure, achieving simplified structure, reduced weight and reduced volume, and improving the adaptability to the matching aircraft.

[0037] The above describes the present application and its embodiments, which are not restrictive, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structural modes and embodiments of the technical solutions are not creative, which should all belong to the protection scope of the present application.

Claims

1. A ported-shaft valve gear supercharging system for a ring-piston opposed-piston engine, the opposed-piston engine comprising a piston cylinder and a power transmission shaft, characterized in that: The power transmission shaft is coaxially arranged in the output shaft shell, and the output shaft shell is provided with a first high-temperature partition plate, an exhaust fan wheel, an air inlet fan wheel, an airflow supercharging vortex piece, a second high-temperature partition plate and a power output gear coaxially arranged on the power transmission shaft from one end to the other end, the exhaust fan wheel is coaxially fixedly connected with the air inlet fan wheel, the first high-temperature partition plate, the coaxially fixedly connected exhaust fan wheel and air inlet fan wheel and the second high-temperature partition plate are all rotationally connected on the power transmission shaft, and the airflow supercharging vortex piece is fixed in the output shaft shell and is not connected with the power transmission shaft. The region between the air inlet fan wheel and the second high-temperature partition plate in the power shaft shell forms an airflow supercharging cavity, and the airflow supercharging vortex piece is arranged in the airflow supercharging cavity. The exhaust gas outlet and the air inlet are arranged between the piston cavity of the piston cylinder and the output shaft shell, and the exhaust gas outlet and the air inlet are in communication with the piston cavity of the piston cylinder and the output shaft shell, the exhaust gas outlet is arranged at the position of the exhaust fan wheel, the air inlet is arranged at the position between the airflow supercharging vortex piece and the second high-temperature partition plate, the exhaust gas outlet blows the exhaust gas into the output shaft shell to drive the exhaust fan wheel to rotate, the rotating exhaust fan wheel drives the air inlet fan wheel to rotate, and the exhaust gas is discharged out of the output shaft shell after acting on the exhaust fan wheel. The power shaft shell is provided with a carburetor in communication with the outside at the position of the air inlet fan wheel, the carburetor is provided with a throttle valve and an oil nozzle, the air inlet fan wheel rotates, the throttle valve of the carburetor is opened, fresh air is sucked into the power shaft shell, the oil nozzle sprays oil mist, and the oil mist enters the output shaft shell together with the sucked fresh air, is supercharged in the airflow supercharging cavity and enters the piston cavity of the piston cylinder through the air inlet.

2. A ported-inlet camshaft system for an opposed-piston engine according to claim 1, characterized in that: The exhaust fan wheel and the air inlet fan wheel are fixed on a sleeve, the sleeve is rotationally sleeved on the power transmission shaft through a bearing, a third high-temperature partition plate is sleeved between the exhaust fan wheel and the air inlet fan wheel on the outer side of the sleeve, a bearing is arranged between the third high-temperature partition plate and the sleeve, and the third high-temperature partition plate is fixed to the inner wall of the output shaft shell.

3. A ported-inlet camshaft system for an opposed-piston engine according to claim 1, wherein: The carburetor is arranged at the position between the air inlet fan wheel and the airflow supercharging piece.

4. A ported-inlet camshaft system for an opposed-piston engine according to claim 1, wherein: The first high-temperature partition plate, the coaxially fixedly connected exhaust fan wheel and air inlet fan wheel and the second high-temperature partition plate are all rotationally connected on the power transmission shaft through bearings.

5. A ported-shaft valve system for a split-cycle engine of the type having a cylinder in which a piston reciprocates, as set forth in claim 1, further characterized by: A fourth high-temperature partition plate is arranged on the power transmission shaft away from the second high-temperature partition plate on the side of the power output gear, and the fourth high-temperature partition plate is connected with the power transmission shaft through a bearing.

6. A ported-shaft valve system for a split-cycle engine of the type having a cylinder in which a piston reciprocates, as set forth in claim 1, further characterized by: A waste outlet is arranged on the power shaft shell at the position of the exhaust fan wheel.

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