Novel high-power low-emission layered scavenging air cylinder
By setting multiple scavenging ports and mixed air inlets in the layered scavenging cylinders, the problem of uneven distribution of scavenging ports in traditional cylinders is solved, and the smoothness of gas flow in the cylinder and the performance of the internal combustion engine is improved.
Patent Information
- Application Number
- CN202420121282.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The uneven distribution of the scavenging ports of the traditional layered scavenging cylinders leads to uneven distribution of gas in the combustion chamber, slow air intake speed, insufficient fusion of air and fuel, increasing fuel consumption and reducing power.
A new high-power low-emission layered scavenging cylinder is designed. By setting the first scavenging port and the second scavenging port transversely on the inner wall of the piston cavity, and a pair of mixing air inlets and mixing pipes are fixedly arranged on the cylinder body, gas can quickly enter the cylinder, reduce dead zones, and improve the smoothness of gas flow.
The smooth flow of gas in the cylinder is achieved, the inflation and exhaust efficiency is improved, the performance and combustion efficiency of the internal combustion engine are improved, and the exhaust emissions and fuel consumption are reduced.
Smart Images
Figure CN222615443U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of stratified scavenging cylinders, in particular to a novel high-power low-emission stratified scavenging cylinder. Background Art
[0002] Stratified scavenging cylinder is a cylinder design used in internal combustion engines. Its working principle is to set up multiple layers in the cylinder, each layer has its own intake and exhaust ports.
[0003] The scavenging ports of traditional stratified scavenging cylinders are distributed on one side. After the gas enters the combustion chamber, it cannot be quickly distributed in the combustion chamber, and the scavenging ports occupy a high height of the combustion chamber. When the piston moves, the scavenging ports are slowly exposed, the intake speed is slow, and the air and fuel are not fully integrated, which increases fuel consumption and reduces power. Utility Model Content
[0004] The utility model aims to solve the defect of uneven distribution of scavenging ports of stratified scavenging cylinders in the prior art, and proposes a novel high-power low-emission stratified scavenging cylinder.
[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:
[0006] A novel high-power low-emission stratified scavenging cylinder comprises a cylinder body, a piston cavity is arranged in the cylinder body, a first scavenging port is arranged transversely on the inner wall of the piston cavity, a second scavenging port is arranged transversely on the inner wall of the piston cavity, the first scavenging port and the second scavenging port are located at different heights in the piston cavity and on different cavity surfaces, and a pair of mixing intake ports are arranged transversely on the inner wall of the piston cavity.
[0007] Preferably, a first scavenging pipe is fixedly provided on one side of the cylinder body, a second scavenging pipe is fixedly provided on the other side of the cylinder body, a pair of mixing pipes are fixedly provided on the cylinder body, and the first scavenging pipe and the second scavenging pipe are respectively connected to the first scavenging port and the second scavenging port.
[0008] Preferably, a pair of mixing ports are provided in each of the mixing tubes, and each of the mixing ports is communicated with the second scavenging port.
[0009] Preferably, a pair of connecting channels are provided in the first scavenging pipe, and the connecting channels are respectively connected to different mixing pipes.
[0010] Preferably, a plurality of cooling fins are provided on the outer wall of the cylinder body.
[0011] Preferably, the first scavenging pipe, the second scavenging pipe and the mixing pipe are each provided with a plurality of through holes.
[0012] Preferably, the inner walls of the first scavenging air port and the second scavenging air port are both trapezoidal in shape.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. In the present invention, by arranging the first scavenging port and the second scavenging port on the opposite sides of the cavity and both being arranged horizontally, the gas can quickly enter the cylinder, thereby reducing the dead zone inside the cylinder, making the gas flow in the cylinder smoother, and improving the cylinder's charging efficiency and exhaust efficiency. This can improve the performance and combustion efficiency of the internal combustion engine, reduce exhaust emissions and fuel consumption;
[0015] 2. In the utility model, the connecting channel is connected with the mixing tubes on both sides of the cylinder, so that part of the air enters the mixing tube from the connecting channel and mixes with the fuel in the mixing tube. Not only is the mixing uniform, but the air and fuel enter from different pipes to prevent fuel backflow. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the piston chamber structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the connecting pipeline structure of the utility model;
[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the cylinder of the utility model.
[0021] Serial numbers in the figure: 1. Cylinder body; 11. Piston chamber; 12. First scavenging port; 13. Mixing intake port; 14. Second scavenging port; 2. First scavenging pipe; 21. Second scavenging pipe; 22. Mixing pipe; 3. Mixing port; 4. Connecting channel; 5. Heat sink; 6. Through hole. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Embodiment 1: This embodiment provides a new type of high-power low-emission stratified scavenging cylinder, see Figure 1-4Specifically, it comprises a cylinder body 1, a piston cavity 11 is arranged in the cylinder body 1, a first scavenging port 12 is arranged transversely on the inner wall of the piston cavity 11, a second scavenging port 14 is arranged transversely on the inner wall of the piston cavity 11, the first scavenging port 12 and the second scavenging port 14 are located at different heights in the piston cavity 11 and are located on different cavity surfaces, a pair of mixed air inlet ports 13 are arranged transversely on the inner wall of the piston cavity 11, and the inner walls of the first scavenging port 12 and the second scavenging port 14 are both in a trapezoidal shape;
[0024] During the intake stroke, the piston in the cylinder moves downward, causing the intake valve to open, and the air and fuel mixture is sucked into the cylinder from the mixed intake port 13, while pure air enters from the second scavenging port 14 and the first scavenging port 12 respectively. Since the first scavenging port 12 and the second scavenging port 14 are located on opposite sides and are both arranged horizontally, the gas can quickly enter the cylinder, thereby reducing the dead zone inside the cylinder, making the gas flow in the cylinder smoother, and improving the cylinder's charging efficiency and exhaust efficiency. This can improve the performance and combustion efficiency of the internal combustion engine, and reduce exhaust emissions and fuel consumption.
[0025] In the specific implementation process, as shown in the figure and the figure, a first scavenging pipe 2 is fixedly provided on one side of the cylinder body 1, a second scavenging pipe 21 is fixedly provided on the other side of the cylinder body 1, a pair of mixing pipes 22 are fixedly provided on the cylinder body 1, the first scavenging pipe 2 and the second scavenging pipe 21 are respectively connected to the first scavenging port 12 and the second scavenging port 14, and a plurality of through holes 6 are opened on the first scavenging pipe 2, the second scavenging pipe 21 and the mixing pipe 22;
[0026] The first scavenging pipe 2, the second scavenging pipe 21 and the mixing pipe 22 are used to connect other parts of the engine to facilitate the air and the mixed gas to enter the piston chamber 11. The provision of the through hole 6 facilitates the installation of the screws.
[0027] In the specific implementation process, Figure 1 and Figure 2 As shown, the outer wall of the cylinder body 1 is provided with a plurality of heat sinks 5; the heat sinks 5 effectively increase the heat dissipation efficiency of the cylinder and improve the operating time of the cylinder.
[0028] Embodiment 2: Based on Embodiment 1, this embodiment further includes:
[0029] In the specific implementation process, Figure 2 and Figure 3 As shown, a pair of mixing ports 3 are provided in each mixing tube 22, and each mixing port 3 is connected to the second scavenging port 14. A pair of connecting channels 4 are provided in each first scavenging tube 2, and each connecting channel 4 is connected to different mixing tubes 22 respectively.
[0030] The connecting channel 4 is connected to the mixing tubes 22 on both sides of the cylinder, so that part of the air enters the mixing tube 22 from the connecting channel 4 and mixes with the fuel in the mixing tube 22. Not only is the mixing uniform, but the air and fuel enter from different pipes to prevent fuel backflow.
[0031] Specifically, the working principle and operation method of the utility model are as follows:
[0032] During the intake stroke, the piston in the cylinder moves downward, causing the intake valve to open, and the air and fuel mixture is sucked into the cylinder from the mixture intake port 13, while pure air enters from the second scavenging port 14 and the first scavenging port 12 respectively. Since the first scavenging port 12 and the second scavenging port 14 are located on opposite sides and are both arranged horizontally, the gas can quickly enter the cylinder;
[0033] The connecting channel 4 is connected to the mixing tubes 22 on both sides of the cylinder, so that part of the air enters the mixing tube 22 from the connecting channel 4 and mixes with the fuel in the mixing tube 22. Not only is the mixing uniform, but the air and fuel enter from different pipes to prevent fuel backflow.
[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A novel high-power low-emission stratified scavenging cylinder, comprising a cylinder body (1), characterized in that: A piston cavity (11) is provided in the cylinder body (1), a first scavenging port (12) is transversely provided on the inner wall of the piston cavity (11), a second scavenging port (14) is transversely provided on the inner wall of the piston cavity (11), the first scavenging port (12) and the second scavenging port (14) are located at different heights in the piston cavity (11) and at different cavity surfaces, and a pair of mixing air intake ports (13) are transversely provided on the inner wall of the piston cavity (11).
2. A new type of high-power low-emission stratified scavenging cylinder according to claim 1, characterized in that: A first scavenging pipe (2) is fixedly provided on one side of the cylinder body (1), and a second scavenging pipe (21) is fixedly provided on the other side of the cylinder body (1). A pair of mixing pipes (22) are fixedly provided on the cylinder body (1), and the first scavenging pipe (2) and the second scavenging pipe (21) are respectively connected to the first scavenging port (12) and the second scavenging port (14).
3. A new type of high-power low-emission stratified scavenging cylinder according to claim 2, characterized in that: A pair of mixing ports (3) are provided in each of the mixing tubes (22), and each of the mixing ports (3) is connected to the second scavenging port (14).
4. A novel high-power low-emission stratified scavenging cylinder according to claim 2, characterized in that: A pair of connecting channels (4) are provided in the first scavenging pipe (2), and the connecting channels (4) are respectively connected to different mixing pipes (22).
5. A new type of high-power low-emission stratified scavenging cylinder according to claim 1, characterized in that: The outer wall of the cylinder body (1) is provided with a plurality of cooling fins (5).
6. A new type of high-power low-emission stratified scavenging cylinder according to claim 2, characterized in that: The first scavenging pipe (2), the second scavenging pipe (21) and the mixing pipe (22) are each provided with a plurality of through holes (6).
7. A new type of high-power low-emission stratified scavenging cylinder according to claim 1, characterized in that: The inner walls of the first scavenging port (12) and the second scavenging port (14) are both in a trapezoidal shape.