Novel piston combustion chamber structure

Abstract

The utility model discloses a novel piston combustion chamber structure, which belongs to the field of piston combustion chambers and comprises a combustion chamber main body, a partition plate is arranged in the combustion chamber main body, two rotating grooves are formed in the partition plate, and two rotating holes are formed in each rotating groove. And the rotating groove is rotationally connected with the rotating rod through the rotating hole. According to the novel piston combustion chamber structure, by arranging the partition plate, the rotating hole, the rotating rod, the coil spring and the adjusting plate, when the combustion chamber structure is used, oxygen can flow into the upper cavity through a gap between the adjusting plate and the partition plate, and meanwhile diesel oil in the upper cavity can also flow into the lower cavity; according to the combustion chamber mechanism, the diesel oil amount and the air amount of the upper cavity and the lower cavity of the combustion chamber main body can be adjusted through the combustion chamber mechanism, sufficient combustion in the combustion chamber main body can be guaranteed, meanwhile, the combustion chamber structure can restrain generation of nitric oxide, and the situation that the environment is polluted by emission is avoided.

Description

Technical Field

[0001] This utility model relates to the field of piston combustion chamber technology, specifically a novel piston combustion chamber structure. Background Technology

[0002] The combustion chamber is the space between the top of the piston and the cylinder head after the piston reaches top dead center. Fuel is burned in this chamber. When the piston is at top dead center, the space formed above the piston top surface and below the cylinder head bottom surface is called the combustion chamber. The bottom surface of the cylinder head of a gasoline engine is usually cast with pits of various shapes, which are conventionally called combustion chambers.

[0003] The rapid mixing of fuel and air in existing combustion chambers leads to the simultaneous combustion of a large amount of fuel vapor, increasing the temperature and pressure inside the cylinder. In contrast, diesel engines employ lean combustion technology, resulting in a large oxygen-rich area. Furthermore, the combustion chamber accelerates the airflow within the cylinder, promoting the interaction between the high-temperature zone and the oxygen-rich zone, which leads to the generation of nitrogen oxides. Excessive emissions of nitrogen oxides pollute the environment, making it difficult to meet national emission standards. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a novel piston combustion chamber structure, which aims to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel piston combustion chamber structure, comprising a combustion chamber body, wherein a partition is provided inside the combustion chamber body, and two rotating grooves are formed inside the partition, each of the two rotating grooves having two rotating holes. The rotating grooves are rotatably connected to a rotating rod through the rotating holes, a coil spring is sleeved on the outer wall of the rotating rod, the outer wall of the rotating rod is fixedly connected to the inner wall of a rotating block, the outer wall of the rotating block is connected to the inner wall of an adjusting plate, a through hole is formed inside the partition, the outer wall of the adjusting plate is arc-shaped, and the outer diameter of the adjusting plate is adapted to the inner diameter of the through hole.

[0008] As a preferred technical solution of this application, two sealing blocks are fixedly connected to the bottom of the partition, and the top of the sealing blocks abuts against the bottom of the adjusting plate.

[0009] As a preferred technical solution of this application, the combustion chamber body is provided with a number of reinforcing ribs at equal intervals inside, a first air inlet is provided at the upper middle part of the combustion chamber body, and a number of second air inlets are provided at the lower middle part of the combustion chamber body.

[0010] As a preferred technical solution of this application, the top and bottom of the partition are provided with a plurality of guide plates at equal intervals, and the included angle between the spacing of two corresponding guide plates is 45 degrees, and the first air inlet and the second air inlet are both located in the middle of the two corresponding guide plates.

[0011] (III) Beneficial Effects

[0012] 1. This novel piston combustion chamber structure, through the arrangement of a baffle, rotating groove, rotating hole, rotating rod, coil spring, and adjusting plate, divides the combustion chamber body into two combustion sections, upper and lower, via the baffle. The upper chamber has a high diesel content but insufficient oxygen, resulting in incomplete combustion and limited nitrogen oxide (NOx) generation. Conversely, the lower chamber has a high oxygen content but low diesel content, also limiting NOx production. Furthermore, excessive airflow in the lower chamber compresses the adjusting plate, causing it to rotate upwards. This allows airflow to pass through the gap between the adjusting plate and the baffle into the upper chamber, while diesel from the upper chamber can flow into the lower chamber. This allows the combustion chamber mechanism to regulate the diesel and air volume in both the upper and lower chambers, ensuring complete combustion within the combustion chamber. Simultaneously, this structure suppresses NOx generation, preventing environmental pollution from emissions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a novel piston combustion chamber structure;

[0014] Figure 2 This is a front view schematic diagram of the guide vane in a novel piston combustion chamber structure.

[0015] Figure 3 This is a frontal cross-sectional view of the main body of the combustion chamber in a novel piston combustion chamber structure.

[0016] Figure 4 This is a schematic diagram of the explosion of the rotating block in a novel piston combustion chamber structure.

[0017] In the picture:

[0018] 1. Combustion chamber body; 2. Baffle plate; 3. Rotating groove; 4. Rotating hole; 5. Rotating rod; 6. Coil spring; 7. Adjusting plate; 8. Sealing block; 9. First air inlet; 10. Second air inlet; 11. Reinforcing rib; 12. Guide plate; 13. Rotating block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, this utility model provides a novel piston combustion chamber structure, including a combustion chamber body 1. A partition 2 is provided inside the combustion chamber body 1. Two rotating grooves 3 are formed inside the partition 2, and each of the two rotating grooves 3 has two rotating holes 4. The rotating grooves 3 are rotatably connected to a rotating rod 5 through the rotating holes 4. A coil spring 6 is sleeved on the outer wall of the rotating rod 5. The outer wall of the rotating rod 5 is fixedly connected to the inner wall of a rotating block 13. The outer wall of the rotating block 13 is connected to the inner wall of an adjusting plate 7. A through hole is formed inside the partition 2. The outer wall of the adjusting plate 7 is arc-shaped, and the outer diameter of the adjusting plate 7 matches the inner diameter of the through hole. In use, this combustion chamber structure divides the combustion chamber body 1 into two combustion sections, upper and lower, through the partition 2. This results in a high diesel content but insufficient oxygen in the upper chamber. Therefore, incomplete combustion of diesel fuel limits the generation of nitrogen oxides. The lower chamber has a high oxygen content but a low diesel fuel content, resulting in limited nitrogen oxide production. This combustion chamber structure can suppress nitrogen oxide generation, thus preventing environmental pollution. Furthermore, when there is excessive airflow in the lower chamber, it will compress the regulating plate 7, causing it to rotate upwards. This allows airflow to pass through the gap between the regulating plate 7 and the partition plate 2 into the upper chamber. Simultaneously, diesel fuel in the upper chamber can also flow into the lower chamber. This combustion chamber mechanism can regulate the amount of diesel fuel and air in the upper and lower chambers of the combustion chamber body 1, thereby ensuring complete combustion inside the combustion chamber body 1.

[0021] Two sealing blocks 8 are fixedly connected to the bottom of the partition plate 2. The top of the sealing block 8 abuts against the bottom of the adjusting plate 7. By setting the sealing block 8, the rotation gap between the rotating groove 3 and the adjusting plate 7 can be sealed to prevent airflow from flowing along the rotation gap between the rotating groove 3 and the adjusting plate 7.

[0022] The combustion chamber body 1 has several reinforcing ribs 11 arranged at equal intervals inside. A first air inlet 9 is opened at the upper middle part of the combustion chamber body 1, and multiple second air inlets 10 are opened at the lower middle part of the combustion chamber body 1. By setting the reinforcing ribs 11, the mechanical strength of the combustion chamber body 1 can be improved, and the combustion chamber body 1 can be prevented from cracking due to excessive heat or gas pressure during combustion.

[0023] Several guide plates 12 are equidistantly arranged at the top and bottom of the baffle 2, and the angle between the spacing of two corresponding guide plates 12 is 45 degrees. The first air inlet 9 and the second air inlet 10 are both located in the middle of the corresponding two guide plates 12. By setting the guide plates 12, the airflow entering the first air inlet 9 and the second air inlet 10 can be guided, so that the airflow is concentrated inside the combustion chamber body 1, so that diesel and gas can be fully burned inside the combustion chamber body 1, avoiding the situation where excessive edge pressure is caused by burning at the edge of the inner wall of the combustion chamber body 1, which could lead to damage.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel piston combustion chamber structure, comprising a combustion chamber body (1), characterized in that: The combustion chamber body (1) is provided with a partition (2) inside. The partition (2) has two rotating grooves (3) inside. Each of the two rotating grooves (3) has two rotating holes (4) inside. The rotating grooves (3) are rotatably connected to the rotating rod (5) through the rotating holes (4). The outer wall of the rotating rod (5) is fitted with a coil spring (6). The outer wall of the rotating rod (5) is fixedly connected to the inner wall of the rotating block (13). The outer wall of the rotating block (13) is connected to the inner wall of the adjusting plate (7). The partition (2) has a through hole inside. The outer wall of the adjusting plate (7) is arc-shaped, and the outer diameter of the adjusting plate (7) is matched with the inner diameter of the through hole.

2. The novel piston combustion chamber structure according to claim 1, characterized in that: Two sealing blocks (8) are fixedly connected to the bottom of the partition (2), and the top of the sealing block (8) abuts against the bottom of the adjusting plate (7).

3. The novel piston combustion chamber structure according to claim 1, characterized in that: The combustion chamber body (1) has several reinforcing ribs (11) arranged at equal intervals inside. A first air inlet (9) is opened at the upper middle part of the combustion chamber body (1), and multiple second air inlets (10) are opened at the lower middle part of the combustion chamber body (1).

4. The novel piston combustion chamber structure according to claim 3, characterized in that: The top and bottom of the partition (2) are provided with a number of guide plates (12) at equal intervals, and the angle between the two guide plates (12) is 45 degrees. The first air inlet (9) and the second air inlet (10) are both located in the middle of the two guide plates (12).

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