TWI510705B - Rotor engine inlet and exhaust pipe optimization device - Google Patents

Description

Rotor engine intake and exhaust pipe optimization device

The invention belongs to a method and a device for optimizing an intake and exhaust pipe of a rotor engine, in particular to controlling a pipe length, a pipe diameter and a pipe shape of an intake pipe and an exhaust pipe, so that the pressure of the air pipe and the pressure of the engine air chamber are matched to enhance Engine horsepower.

Conventionally, the rotor engine has the advantages of high power-to-weight ratio, small volume, small size, compact structure, and small front view area. The engine intake and exhaust pipe is a smooth straight pipe, and the engine is divided into three by a triangular rotor. a gas chamber, when the rotor rotates for one week, the three gas chambers can complete one intake, compression, combustion and exhaust to generate power output, and when the gas in the gas chamber meets the spark, it rapidly burns, resulting in Thermal energy causes the gas to generate strong pressure and then output power. Factors affecting the performance of the engine include intake and exhaust timing, ignition timing, cylinder volume, and air-fuel ratio. However, for the rotor engine, the power output characteristics have been determined under fixed geometrical conditions and cannot be changed. Unlike the general reciprocating engine (PISTON ENGINE), the intake and exhaust timing can be adjusted by the intake and exhaust valves. , to achieve the best intake and exhaust status.

In general, the intake state is related to the differential pressure between the intake pipe and the intake plenum. In the engine intake phase, it is desirable to have more fresh air as possible. Therefore, it is desirable that the intake pipe pressure can always be higher than the plenum pressure. The intake pipe supplies the air volume into the air chamber. Conversely, if the air chamber pressure is higher than the intake pipe pressure, the air chamber will squeeze the air flow into the intake pipe, which means that the engine intake is stopped or even airflow flows out from the intake pipe. , resulting in insufficient intake air.

At present, most of the engine performance improvement methods focus on the combustion outdoor type or ignition timing. The cost and time required for the modification of the engine body are large. The use of a supercharger can provide a higher inlet pressure and intake air amount to achieve the performance improvement effect, but Excessive pressure will increase the fuel consumption rate, and some oil and gas will be discharged from the exhaust pipe, which is not economical and environmentally friendly.

In view of the above disadvantages of the prior art, the present invention mainly provides a method for optimizing the intake and exhaust pipes of a rotor engine, which adjusts the pressure wave in the intake pipe through the shape of the intake and exhaust pipe and cooperates with the pressure of the air chamber in the rotor engine. Improve engine intake and improve horsepower output. Under the design of the engine body without change, only the shape of the intake and exhaust pipes, the length of the pipe and the diameter of the pipe are adjusted. Compared with the straight pipe of the engine in the past, the pressure of the air pipe is adjusted by the tapered intake pipe and the divergent exhaust pipe to increase the pressure. The amount of intake air, which in turn increases engine horsepower.

When the engine air chamber is exhausted, the air chamber volume becomes larger, the engine is in the negative pressure (below atmospheric pressure) state, and the intake valve is started. When the intake pipe pressure is greater than the air chamber pressure, the intake pipe air can smoothly enter the air chamber. As the gas volume increases, the pressure rises, the air demand decreases, and the inertia of the airflow causes the pressure of the intake pipe to rise by the engine end to form a pressure wave. When the air flow increases or decreases, the pressure wave formed in the intake pipe will advance toward the engine end and the open end of the air pipe, and an echo will be generated after hitting the engine end or the open end. The two pressure waves run in the pipe to form an instantaneous pressure. The average value, when the next air chamber starts to intake again, then the instantaneous pressure wave and the air chamber pressure difference determine the amount of intake air at that point in time.

When the rotor rotates at different angles, the pressure changes in the air chamber and the trachea can be measured. The amplitude and frequency of the pressure wave in the tube can be explained by the difference between the maximum pressure point and the pressure echo, which can be changed by the geometric shape of the trachea. In order to achieve the above object, the present invention provides a method for optimizing an intake and exhaust pipe of a rotor engine, the method comprising: (A) providing a rotor engine body; (B) operating the rotor engine and measuring a gas pressure wave and an engine air chamber (C) control the shape of the intake pipe through a length of the pipe so that the diameter of the inlet end is larger than the diameter of the engine end, and the shape of the exhaust pipe is made smaller than the length of the pipe at the end of the pipe. And (D) sequentially perform a series of engine horsepower output performance tests with different lengths of pipe lengths, pipe lengths and pipe angles. The engine performance test results determine the pipe length, pipe diameter and pipe shape. Good combination S40.

Wherein, the control of the shape of the intake pipe and the exhaust pipe refers to controlling the angle of the air pipe, and the angle is an angle extending from the line connecting the end of the gas pipe and the end of the engine. The angle control range is from 0 to 50 degrees and is combined in intervals. The length of the tube is controlled from 100 mm to 1500 mm and combined at intervals. The pipe diameter considers the geometric condition and space limitation of the engine body, and the larger the pipe diameter of the engine end, the better the horsepower lifting effect of the engine.

In step (D), by adjusting the combination of the length of the tube length, the length of the tube diameter and the angle of the tube shape, the pressure of the pressure of the rotor engine is adjusted to adjust the amplitude and frequency of the pressure wave in the intake tube, so that the engine advances. In the gas state, the intake pipe pressure is higher than the gas chamber pressure.

In addition, the intake pipe is a tapered tube shape, and the diameter of the inlet end of the intake pipe is larger than the diameter of the engine end, and the direction of the airflow movement is smaller than the cross-sectional area of the intake port end to the cross-sectional area. The engine end; the exhaust pipe is a diverging pipe shape, the pipe diameter of the exhaust pipe is smaller than the pipe diameter of the exhaust port, and the air flow direction is the exhaust gas having a small cross-sectional area from the engine end to the cross-sectional area Oral.

Thereby, by adjusting the tubular shape, the pipe diameter and the pipe length of the intake pipe and the exhaust pipe, the pressure wave formed in the gas pipe is matched with the intake air in the process of the intake of the rotor engine in the process of the intake air. The stage air chamber pressure can effectively increase the intake air volume and improve the horsepower output performance.

Another object of the present invention is to provide a device for optimizing an intake and exhaust pipe of a rotor engine, the device comprising: a rotor engine body including an intake pipe system connected to an intake port of the engine body and an exhaust pipe Connected to the exhaust port of the engine body, such that the engine body is powered by the intake pipe to the engine body, and the exhaust gas is exhausted through the exhaust pipe; wherein the intake pipe is connected to the engine body One end is an engine end, and the other end of the intake pipe is connected to the outside by an intake port end, and the intake pipe shape is such that the diameter of the inlet end is larger than the diameter of the engine end; and One end of the exhaust pipe and the engine body is an engine end, and the other end of the exhaust pipe communicates with the outside as an exhaust port end, and the exhaust pipe shape is made by a pipe length to make the engine end pipe diameter Less than the diameter of the exhaust port end, by the combination of the intake pipe and the exhaust pipe diameter, the pipe length and the tubular shape, the pressure wave in the pipe is adjusted to match the pressure of the air chamber, thereby increasing the intake air amount, so that the engine enters Smooth air and exhaust to increase the horsepower output of the rotor

Wherein the intake pipe and the exhaust pipe are externally designed, such as the above-mentioned method for optimizing the intake and exhaust pipes of the rotor engine, adjusting the pressure wave in the pipe according to the length of the pipe, the length of the pipe diameter and the angle of the pipe shape In conjunction with the pressure of the air chamber to achieve a better intake state, the length of the exhaust pipe may be greater than the length of the pipe of the intake pipe. The tubular shape of the intake pipe and the exhaust pipe may be a segmented or continuous curved surface, and may be a tapered pipe.

The above summary, the following detailed description and the accompanying drawings are intended to further illustrate the manner, the Other objects and advantages of the present invention will be described in the following description and drawings.

S10~S40‧‧‧Steps

10‧‧‧Rotor engine body

20‧‧‧Intake pipe

21‧‧‧ Inlet end

22‧‧‧ Engine end

30‧‧‧Exhaust pipe

31‧‧‧ Engine side

32‧‧‧Exhaust end

The first figure is a flow chart of the method for optimizing the intake and exhaust pipes of the rotor engine of the present invention.

The second figure is a schematic diagram of the rotor engine intake and exhaust pipe optimization device of the present invention.

The third figure is a schematic view of the tubular shape of the intake and exhaust pipes of the rotor engine of the present invention.

The fourth figure is a schematic diagram of an embodiment of the rotor engine intake and exhaust pipe optimization device of the present invention.

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. Referring to the first figure, the steps of the rotor engine intake and exhaust pipe optimization method of the present invention are as follows: (A) providing a rotor engine body S10; (B) operating the rotor engine and measuring the pressure of the air pipe pressure wave and the engine air chamber S20 (C) controlling the shape of the intake pipe through a length of the pipe so that the diameter of the inlet end is larger than the diameter of the engine end, and the shape of the exhaust pipe is made smaller than the length of the pipe end of the exhaust pipe by the pipe diameter S30; And (D) sequentially perform a series of engine horsepower output performance tests with different lengths of pipe lengths, pipe lengths and pipe angles, and determine the best pipe length, pipe diameter and shape by engine performance test results. Combine S40.

By adjusting the intake pipe and the exhaust pipe pressure wave to match the pressure of the engine air chamber, the intake and exhaust are smooth, forming a rotor engine intake and exhaust optimization device, increasing the intake air amount, and making the engine intake and exhaust The air is smooth to improve the horsepower output of the rotor engine.

Referring to the second figure, a schematic diagram of a rotor engine intake and exhaust pipe optimization device according to the present invention includes: a rotor engine body 10, an intake pipe 20 and an exhaust pipe 30, wherein the intake pipe 20 is A tapered conical tube has an inlet end 21 and an engine end 22; the exhaust pipe 30 is a divergent conical tube having an engine end 31 and an exhaust port end 32. The intake pipe 20 of the rotor engine body 10 is connected to the intake port of the rotor engine body 10, and the exhaust pipe 30 of the rotor engine body 10 is connected to the exhaust port of the rotor engine body 10 to make the rotor engine After the body 10 is inducted into the rotor engine body 10 by the intake pipe 20 to generate power, the exhaust gas is discharged through the exhaust pipe 30.

Embodiment 1: Please refer to the schematic diagram of the tubular shape of the rotor engine intake and exhaust pipes in the third diagram and the schematic diagram of the rotor engine embodiment in the fourth diagram, and provide a rotor engine body 10, the engine At 6800 rpm (6800 rpm, revolution per minute), it can provide about 30~40 horsepower (30~40hp, about 22.37~29.83KW) power. The fixed divergent exhaust pipe has 30 pipe lengths, pipe diameters and tubular shapes. The diameter of the intake pipe 20 is 35 mm (mm), the pipe angle is 8 degrees, and the length of the intake pipe is adjusted to 50 mm to 1000 mm. The engine performance test is performed, and the result of the influence of the engine pipe performance on the intake pipe length is obtained, and the engine can be improved. The output power is 10%~17%, and the engine output power is increased by about 16.8% when the length of the intake pipe is about 800mm.

Embodiment 2: A rotor engine body 10 is provided. The engine can provide about 30~40 hp power at 6800 rpm, and the fixed divergent exhaust pipe 30 has a length, a pipe diameter and a tubular shape, and the fixed tapered intake pipe 20 is fixed. The pipe length is 400mm, the pipe angle is 8 degrees, the intake pipe diameter is adjusted to 25mm~50mm, and the engine performance test is carried out. The results show that the intake pipe diameter affects the engine performance trend and can increase the engine output power by 0.2%~16%. When the intake pipe diameter is about 50mm, the engine output is increased by about 16%.

Embodiment 3: A rotor engine body 10 is provided. The engine can provide about 30~40 hp power at 6800 rpm, and the diameter of the tapered intake pipe 20 is taken from 25 mm at intervals of 5 mm to 50 mm, and the length of the pipe is taken from 0 mm. Up to 1200mm and the tubular angle range is 0~20 degrees; the diameter of the divergent exhaust pipe 30 is from 20mm to 50mm, the length of the pipe is from 0mm to 1200mm, and the tubular angle range is 0~20 degrees. Under these conditions, Optimize the diameter of the intake pipe larger than 35mm, the length of the intake pipe is 400mm~800mm and the angle of the tapered intake pipe is 2~8 degrees, the diameter of the exhaust pipe is more than 30mm, the length of the exhaust pipe is more than 200mm and the exhaust pipe is gradually expanded. The angle of 0~8 degrees can effectively increase the engine output power by about 2%~18%.

In this way, various types of intake and exhaust pipe engine units are optimally designed through the length, pipe diameter and tubular shape of the intake and exhaust pipes under the existing output horsepower, and the pipe length, pipe diameter and tubular combination of the intake and exhaust pipes are provided. To improve the performance of the engine.

The above-described embodiments are merely illustrative of the features and functions of the present invention and are not intended to limit the scope of the technical scope of the present invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.

10‧‧‧Rotor engine body

20‧‧‧Intake pipe

21‧‧‧ Inlet end

22‧‧‧ Engine end

30‧‧‧Exhaust pipe

31‧‧‧ Engine side

32‧‧‧Exhaust end

Claims (1)

A device for optimizing an intake and exhaust pipe of a rotor engine, comprising: a rotor engine body, comprising an intake pipe system connected to an intake port of the engine body; and an exhaust pipe system and an exhaust port of the engine body Connected to the engine body to generate power through the intake pipe to the engine body, and exhaust gas is discharged through the exhaust pipe; wherein the intake pipe diameter is greater than 35 mm, the pipe length ranges from 400 mm to 800 mm, and the engine One end of the body connection is an engine end, and the other end of the intake pipe is connected to the outside by an intake port end, and the intake pipe shape is a tapered tube shape, and the taper angle is 2-8 degrees, so that The diameter of the inlet end is larger than the diameter of the engine end; and the diameter of the exhaust pipe is greater than 30 mm, the length of the pipe is greater than 200 mm, and one end of the connection with the engine body is an engine end, and the other end of the exhaust pipe is The external communication system is an exhaust port end, and the exhaust pipe shape is a diverging tube shape, and the diverging angle is 0-8 degrees, so that the engine end pipe diameter is smaller than the exhaust port end pipe diameter.