WO2003058043A1

WO2003058043A1 - A kind of structures of a reciprocating internal combustion engine

Info

Publication number: WO2003058043A1
Application number: PCT/CN2002/000005
Authority: WO
Inventors: Huaqing Rong; Huafeng Rong; Zhengjia Rong; Yanling Rong; Jun Rong
Original assignee: Huaqing Rong; Huafeng Rong; Zhengjia Rong; Yanling Rong; Jun Rong
Priority date: 2002-01-08
Filing date: 2002-01-08
Publication date: 2003-07-17
Also published as: AU2002224730A1

Abstract

The present invention relates to a new structure of a reciprocating internal combustion engine. Said engine is provided with cylinder groups. Each group consists of two cylinders, of which one cylinder is used as intake-compression cylinder, which only performs the intake and compressing stroke, the other as combustion-exhaust cylinder, which only performs the combustion and exhaust stroke. A passage is provided between the intake-compression cylinder and the combustion-exhaust cylinder. An intake valve is provided in the portion of the passage near the intake-compression cylinder, another intake valve is provided in the portion of the passage near the combustion-exhaust cylinder. This invention can be used in vehicle, ship and so on, and is low in fuel consumption and pollution.

Description

Internal combustion engine capable of secondary combustion and working process

The invention relates to a novel structure reciprocating internal combustion engine and its working process. Background technique

Modern automobiles have all used internal combustion engines. Automobile internal combustion engines are power devices that drive a vehicle by driving the fuel by burning fuel in a cylinder, generating an expansion force, and converting this pressure into a rotating mechanical force.

In the past, internal combustion engines were classified by working cycle, and there were two-stroke and four-stroke reciprocating piston engines. Free-piston and rotor engines, and other types of engines. It has also been gradually applied in recent years. And two-stroke and four-stroke reciprocating piston engines almost occupy the field of internal combustion engines, most of which are four-stroke engines. Such internal combustion engines are widely used in vehicles such as automobiles, tractors, trains, ships, and agricultural and engineering machinery. . However, due to the limitation of the structure of this internal combustion engine, the four processes of intake, compression, combustion, and exhaust in each working cycle are performed in the same cylinder. The intake is often insufficient, resulting in insufficient combustion, and The generated thermal energy and power cannot be fully utilized. Certain thermal energy and insufficiently combusted gases are discharged into the atmosphere, which causes pollution to the atmosphere and affects further improvement of its efficiency. Reference for reciprocating engines and other types of engines The literatures are published in the "Hyundai Daquan" published by Hubei Science and Technology Press. Content of the invention

The object of the present invention is to provide a reciprocating internal combustion engine with a new structure. This new type of internal combustion engine combines the advantages of the original reciprocating internal combustion engine and separates the intake and compression processes from the combustion and exhaust processes. It is carried out in two cylinders with the same bore and stroke or different cylinders with different bores and strokes. In this way, the “intake compression cylinder” ensures the charge of the internal combustion engine and compresses sufficient compressed gas into the “combustion exhaust cylinder”. The task of <Combustion Exhaust Cylinder> is to keep the certain thermal energy from the previous working cycle and the compressed air injected by <Intake Compression Cylinder> to form a flammable mixed gas (Note: The flammable Gas mixture refers to temperature and pressure), Perform combustion and expansion work.

The objective focus of the present invention is to increase the sufficient intake air volume of the <intake compression cylinder>, increase the flammable temperature and pressure of the <combustion exhaust cylinder>, and perform secondary combustion with a certain amount of thermal energy to increase the power of the internal combustion engine and reduce Fuel consumption, reducing emissions to air pollution.

The specific method to achieve this is: In this new structure reciprocating internal combustion engine, two cylinders juxtaposed can be divided into two models, front and rear models, and left and right models.

Front and rear models: They are divided into A and B type numbers, Class A, two cylinders with the same bore; Class B, two cylinders with different bores or strokes.

Left and right models: A and B type numbers. Class A, two cylinders with the same bore. Class B, two cylinders with different bores and strokes.

The invention provides an internal combustion engine capable of secondary combustion. The engine is provided with a cylinder, which is characterized in that each two cylinders are a group, and one of the cylinders in each group is a combustion exhaust cylinder and the other is an intake compression cylinder, in which combustion A passage is provided between the exhaust cylinder and the intake compression cylinder. The passage is provided with an intake valve in the combustion exhaust cylinder, and a passage is provided with a valve in the intake compression cylinder.

The invention is further characterized in that the cylinder bores of each group of cylinders are the same or different; the strokes of the cylinders are the same or different; the two cylinders in each group of cylinders can be set forward or backward or left and right, and the time-dividing spindle And a secondary shaft; each cylinder in each group of cylinders is provided with a piston, the piston is connected with a connecting rod, and the two connecting rods of each group of cylinders are connected with a common crankshaft or a split shaft.

The working process of an internal combustion engine capable of secondary combustion according to the present invention is to complete four processes of intake, compression, combustion and exhaust by a cylinder, which is characterized in that each two cylinders are a group, and each group of cylinders includes one intake compression Cylinder and a combustion exhaust cylinder, where the intake compression cylinder only completes the intake compression process, and the combustion exhaust cylinder completes the combustion exhaust process. The combustion exhaust cylinder can reasonably retain a certain amount of exhaust gas and thermal energy for secondary combustion; While the air cylinder is in the exhaust state, the intake compression cylinder is in the compressed state; while the combustion exhaust cylinder is in the combustion state, the intake compression cylinder is in the intake state. BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a front model of the present invention, Class A.

Fig. 2 shows the front and rear models of the present invention, category B. Figure 3 shows the left and right models of the present invention, Class A.

Figure 4 shows the left and right models of the present invention, Class B.

5 to 7 are working flowcharts of the present invention.

Figures 1 and 2 are side sectional views of a reciprocating internal combustion engine of the novel structure of the present invention (front and rear models: A, B).

Front and rear models, Class A

In the picture: 1. Connecting rod of <combustion and exhaust piston> 2. Common crankshaft

3.Combustion and exhaust piston 4.Combustion chamber set on the piston

5.Combustion exhaust cylinder 6.Exhaust valve

7, the intake valve connecting the two cylinders 8, the passage of the two cylinders

9, intake valve 10, intake compression cylinder

11. Intake and compression pistons 12. Connecting rod of <intake and compression pistons] Front and rear models. Class B

Picture 13: Combustion exhaust cylinder

14. Ratio of two cylinders: The intake compression cylinder is larger than the combustion exhaust cylinder.

15, intake compression cylinder.

Figures 3 and 4 are front sectional views of the reciprocating internal combustion engine of the present invention (left and right models: A, B). Left and right models, Class A

In the picture: 21, power output crankshaft (spindle) 22, connecting rod of <combustion and exhaust piston>

23, combustion, exhaust piston 24, combustion exhaust cylinder

25.Exhaust valve 26.Combustion chamber set on the cylinder head

27. Intake valve connecting two cylinders 28. Two-cylinder passage

29.Intake valve 30.Intake compression cylinder

31. Intake, compression and contraction 32. Connecting rod of <intake, compression piston>

33. Intake and compression crankshaft (countershaft) 34. Gears connecting the two crankshafts Left and right models, type B

Picture 35. Combustion exhaust cylinder.

36. Ratio of two cylinders: The intake compression cylinder is larger than the combustion exhaust cylinder.

37-, intake compression cylinder. 38. Intake with extended stroke and compressed crankshaft (countershaft). Specific implementation of the present invention

In this new structure reciprocating internal combustion engine, the engine cranks one revolution, and two cylinders complete the intake, compression, combustion, and exhaust processes simultaneously, but one cylinder only completes the intake, compression, and combustion and exhaust processes. Finished in one cylinder. Each cylinder has a piston that reciprocates (up, down, and returns) within the cylinder, and each piston is connected to a common crankshaft by a connecting rod.

However, in the new structure reciprocating internal combustion engine side by side, the pistons in the two cylinders can share a shaft or a split shaft (Figure 3, 4 is the split shaft) and the connecting rod is connected at the same time, it should be noted that It is that the <intake and compression piston> reaches the top dead center earlier than the <combustion exhaust piston>.

The working cycle principle of the new structure reciprocating internal combustion engine.

Diesel engine, front and rear models, Class A

When <Intake, Compression Piston> reaches the bottom dead center (see Figure 5), the intake valve of <Intake Compression Cylinder> set on the cylinder head is closed, the cylinder is filled with air and starts to compress air. The <combustion and exhaust piston> broke out in the cylinder due to the last working cycle in the cylinder, and the work pushed the piston downward to reach the bottom dead center. At this time, the exhaust valve provided on the cylinder head was opened to prepare for exhaust.

When <intake, compression piston> upward compressed air reaches the middle of the cylinder (see Fig. 6), <combustion, exhaust piston> upward exhaust also reaches the middle, at this time the exhaust valve on the cylinder head is closed and connected. The intake valves of the two cylinders are opened. At this time, the passage provided on the cylinder head connecting the two cylinders is opened, and the compressed air in the <intake compression cylinder> is pressed into the <combustion exhaust cylinder> and the < The remaining burning gas in the combustion exhaust cylinder> forms a combustible mixed gas, and at this time, both cylinders move upward.

When the <intake, compression piston> reaches the top dead center (see Figure 7), all the air in the cylinder is compressed into the combustion chamber in the <combustion exhaust cylinder> through the channel. At this time, the <combustion, exhaust piston> It also went up to the top dead center and compressed the combustible gas mixture continuously formed in its own cylinder into the combustion chamber. At this time, the intake valve connecting the two cylinders was closed, and the high-pressure fuel injection nozzle injected diesel into the combustion chamber in the cylinder. The <combustion exhaust cylinder> begins to explode and generates expansion force to push the piston to work downwards, and the intake valve of the <intake compression cylinder> provided on the cylinder head opens, and the <intake compression piston> begins to inhale and descend, and circulates jobs. The combustion gas generator of the novel structure described in the present invention is divided into cylinders and shafts in the intake, compression and combustion and exhaust processes of the engine. The engine output performance and fuel economy (reducing carbon monoxide and carbon dioxide emissions) of split-cylinder and split-shaft engines can achieve very good results. <Intake Compression Cylinder> After the cylinder is operated, it is not affected by thermal expansion, and the lower temperature is conducive to the inflation of the engine. As the bore and stroke become larger and longer, the volume of the <intake compression cylinder> can be increased by more than 200% than the volume of the <combustion exhaust cylinder>. In this way, the <intake compression cylinder> is sufficient to ensure a large number of oxygen molecules. Air Cylinder> Use. The above working conditions can make the engine work normally under the condition of plateau hypoxia. And the carbon monoxide generated by the combustion of the fuel with sufficient oxygen molecules will be greatly reduced, so that the black smoke from the diesel engine is solved and the emissions to the air are reduced.

<Combustion exhaust cylinder> After the cylinder is operated, a certain amount of exhaust heat energy can be reasonably retained, the temperature and pressure of the <combustion exhaust cylinder> can be increased, and secondary combustion can be performed. This not only improves the economic effects of the engine, but also protects the environment. It is a positive and effective method.

The principle of this new structure of the internal combustion engine, for gasoline engines, due to the increase in the volume of <intake compression cylinder>, it is advantageous for direct injection engines, low emissions and lean combustion. The <Combustion Exhaust Cylinder> combines the secondary combustion of a certain amount of exhaust thermal energy and combines the two to provide a new working cycle principle for the development of a 100-kilometre fuel-efficient 3 liter (3L / 100KM) automobile. The invention is applicable to diesel , Gasoline, kerosene and liquefied gas, natural gas and other fuels.

Compared with the traditional reciprocating internal combustion engine, the new-type reciprocating internal combustion engine described in the present invention has the following advantages: (1) The engine's intake, compression and combustion exhaust processes are carried out in separate cylinders. The cylinder bores and strokes of the two cylinders need to be reasonably matched.

(2) The lower temperature of the “intake compression cylinder” is conducive to the inflation of the engine. (3) The cylinder diameter of <Intake Compression Cylinder> can be increased, and the stroke can be extended, so as to ensure sufficient intake air volume of <Intake Compression Cylinder>, which can make the engine work normally in the case of plateau hypoxia. (4) Reasonable use of exhaust gas for secondary combustion, which raises the temperature and pressure of <Combustion Exhaust Cylinder>. This solves the problems of diesel engine, black smoke, low temperature and poor combustion. As a result, the explosive power of the engine was increased, fuel consumption was reduced, and emissions of air pollution were reduced.

The novel structure internal combustion engine provided by the present invention can be widely used in various fields such as automobiles, tractors, trains, ships and other transportation vehicles, agricultural machinery, engineering machinery and the like.

Claims

Rights request

1. An internal combustion engine capable of secondary combustion. The engine is provided with a cylinder, which is characterized in that each two cylinders are a group, and one of the cylinders in each group is a combustion exhaust cylinder, and the other is an intake compression cylinder, in which combustion A passage is provided between the exhaust cylinder and the intake compression cylinder. The passage is provided with an intake valve in the combustion exhaust cylinder, and a passage is provided with a valve in the intake compression cylinder.

2. The internal combustion engine capable of secondary combustion according to claim 1, characterized in that the cylinder bores of each group of cylinders are the same or different.

3. The internal combustion engine capable of secondary combustion according to claim 1 or 2, characterized in that the strokes of the cylinders are the same or different.

4. The internal combustion engine capable of secondary combustion according to claim 1 or 2, characterized in that two cylinders in each group of cylinders can be set forward and backward or left and right, and the time division main shaft and the auxiliary shaft can be set left and right. .

5. The internal combustion engine capable of secondary combustion according to claim 1 or 2, characterized in that each cylinder in each group of cylinders is provided with a piston, the piston is connected with a connecting rod, and the two connecting rods of each group of cylinders are connected with A common crankshaft connection or split shaft connection.

6. The working process of an internal combustion engine capable of secondary combustion. The cylinders complete the four processes of intake, compression, combustion, and exhaust. It is characterized in that each two cylinders are a group, and each group of cylinders includes an intake compression. Cylinder and a combustion exhaust cylinder, wherein the intake compression cylinder only completes the intake compression process, and the combustion exhaust cylinder completes the combustion exhaust process. The combustion exhaust cylinder can reasonably retain a certain amount of exhaust gas and thermal energy for secondary combustion.

7. The working process of an internal combustion engine capable of secondary combustion according to claim 6, characterized in that, while the combustion exhaust cylinder is in an exhaust state, the intake compression cylinder is in a compressed state; and the combustion exhaust cylinder is in combustion At the same time, the intake compression cylinder is in the intake state.