Air inlet structure of engine

Abstract

The utility model discloses a gas inlet structure of an engine, which can improve the speed of gas inlet fluid, so that gas and fuel oil or fuel gas are mixed more uniformly, and the combustion efficiency is improved. The engine air inlet structure comprises an engine body, an air cylinder cover, an air inlet valve seat ring and a baffle. A groove is formed in the cylinder cover, and an air inlet hole matched with an air inlet channel of the engine body is formed in the bottom of the groove. The air inlet valve seat ring is installed in the groove, and the air inlet valve seat ring is matched with the air inlet hole and the groove. The baffle is arranged between the groove and the intake valve seat ring, a through hole is formed in the baffle, and the baffle is used for enabling gas to form turbulent flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to an engine technical field especially relates to an engine air intake structure. BACKGROUND

[0002] In the design of modern internal combustion engines, the performance of the intake system plays a crucial role in the overall efficiency and power output of the engine. The main function of the intake system is to efficiently direct air (or a mixture of gases) into the cylinder to ensure complete combustion of the fuel and effective conversion of energy. Therefore, optimizing the design of the intake passage is a key factor in improving engine performance.

[0003] In the prior art, many intake systems use different forms of airflow guiding devices aimed at improving combustion efficiency by enhancing the turbulent characteristics of gas flow. These designs usually include intake valves, cylinder heads and related airflow guiding structures, however, many traditional designs have problems such as excessive resistance or uneven airflow during airflow guidance, which affects the uniformity of the mixture and the combustion effect. SUMMARY

[0004] The utility model provides an engine air intake structure for improving the speed of intake fluid, so that the gas and fuel or gas mixture is more uniform, which is beneficial to improve the combustion efficiency.

[0005] The present application provides an engine air intake structure, comprising an engine body, a cylinder head, an intake valve seat ring and a baffle; the cylinder head is provided with a groove, and the bottom of the groove is provided with an air inlet hole matched with the air inlet of the engine body; the intake valve seat ring is installed in the groove, and the intake valve seat ring is matched with the air inlet hole and the groove; the baffle is arranged between the groove and the intake valve seat ring, and the baffle is provided with a through hole, and the baffle is used for forming turbulent flow of gas.

[0006] Optionally, the baffle comprises a support part and a blocking part; the support part is connected with the blocking part, and the blocking part is arranged in the support part; the support part is matched with the air inlet hole and the groove; the blocking part is used for forming turbulent flow of gas.

[0007] Optionally, the blocking part is crescent-shaped.

[0008] Optionally, the inner arc and the outer arc of the blocking part are both circular arcs.

[0009] Optionally, the radius of the inner arc is 1.25-1.55 times the radius of the inner arc.

[0010] Optionally, the central angle of the outer arc is 120-150 degrees.

[0011] Optionally, the support part is integrally formed with the blocking part.

[0012] Optionally, the thickness of the baffle is 1mm.

[0013] Optionally, the baffle is made of steel material or powder metallurgy material.

[0014] From the above technical solutions, the utility model has the following advantages:

[0015] The baffle can make the gas form turbulent flow, improve the air inlet fluid speed, so that the gas and fuel or gas are mixed more uniformly, and combustion efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 An engine air inlet structure provided by the utility model is shown in a structural schematic view.

[0017] Fig. 2 A baffle provided by the utility model is shown in a structural schematic view. DETAILED DESCRIPTION

[0018] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to illustrate the relative positional relationship between the components or constituent parts, and do not particularly limit the specific installation orientation of the components or constituent parts.

[0019] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0020] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or constituent parts. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0021] In addition, the structure, proportion, size, etc. drawn in the drawings attached in the present application are only used to cooperate with the disclosed content in the specification, for the understanding and reading of the person skilled in the art, and do not have technical substantial significance, and any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0022] The technical solutions in the application will be described in detail below in combination with the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The utility model discloses an engine intake structure for improving the intake fluid speed, so that the gas and fuel or gas mixing is more uniform, which is beneficial to improve the combustion efficiency. The following will be described in detail in combination with the drawings.

[0024] Please refer to Figs. 1-2 An embodiment of the engine intake structure provided by the present application includes:

[0025] The engine body 1, the cylinder head, the intake valve seat ring and the baffle; the cylinder head is provided with a groove, and the bottom of the groove is provided with an air inlet hole matched with the air inlet of the engine body 1; the intake valve seat ring is installed in the groove, and the intake valve seat ring is matched with the air inlet hole and the groove; the baffle is arranged between the groove and the intake valve seat ring, and the baffle is provided with a through hole, and the baffle is used for forming turbulent flow of the gas.

[0026] The following will describe each component in the engine intake structure:

[0027] Engine body 1: this is the core part of the whole engine, responsible for providing power and the basic structure of gas flow.

[0028] Cylinder head 2: the cylinder head 2 closes the top of the cylinder, increases the compression ratio inside the cylinder. The groove opened on it is used to accommodate the intake valve seat ring 3 and match with the air inlet 11.

[0029] Groove: the design of the groove enables the correct installation of the intake valve seat ring 3 and the close combination with the air inlet hole, ensuring the smooth flow of the gas into the cylinder.

[0030] Air inlet hole: the air inlet hole at the bottom of the groove is matched with the air inlet 11 of the engine body 1, and this design can ensure that the gas can flow into the cylinder efficiently.

[0031] Intake valve seat ring 3: The intake valve seat ring 3 installed in the groove matches the intake hole, playing a guiding and sealing role, ensuring the smoothness of gas flow.

[0032] Baffle 4: The baffle 4 is located between the groove and the intake valve seat ring 3, and has a through hole. The design purpose of the baffle 4 is to guide the gas flowing into the cylinder and promote the formation of turbulent flow.

[0033] The engine intake structure in this embodiment guides the gas during its entry into the cylinder by the baffle 4, causing the gas to generate turbulent flow when passing through the through hole. This turbulent effect can significantly increase the speed of the intake fluid, while also improving the uniformity of the gas and fuel or gas mixture. This uniform mixture helps to improve combustion efficiency, ensuring that the engine can better utilize fuel during operation, thereby improving power output and fuel economy.

[0034] Optionally, the baffle 4 includes a support part 41 and a blocking part 42; the support part 41 is connected with the blocking part 42, and the blocking part 42 is arranged in the support part 41; the support part 41 matches the intake hole and the groove; the blocking part 42 is used to make the gas form turbulent flow.

[0035] The baffle 4 includes two parts, the support part 41 and the blocking part 42, and the support part 41 matches the intake hole and the groove to ensure its stable installation and air tightness. The blocking part 42 is arranged in the support part 41 to guide the airflow.

[0036] The support part 41 provides structural stability, while the blocking part 42 interferes with the airflow by its shape and position to generate turbulent flow. This helps to improve the flow rate and mixing efficiency of the gas, thereby improving the combustion efficiency.

[0037] Optionally, the blocking part 42 is crescent-shaped.

[0038] The blocking part 42 is designed in a crescent shape, with a unique streamline structure.

[0039] The crescent shape can effectively guide the airflow, reduce the resistance of the airflow, and change the flow direction through the curved structure, enhance the effect of turbulent flow formation, and make the gas and fuel or gas mixture more uniform.

[0040] Optionally, the inner arc and the outer arc of the blocking part 42 are both circular arcs.

[0041] The inner arc and the outer arc of the blocking part 42 are both designed in a circular arc shape to ensure the smoothness of the flow and the guidance of the airflow.

[0042] The circular arc shape reduces the resistance of the airflow, helps the gas to maintain a high flow rate when passing through, and generates turbulent flow in the flow, further improving the mixing effect of the gas and fuel.

[0043] Optionally, the radius of the inner arc is 1.25-1.55 times the radius of the inner arc.

[0044] The radius of the inner arc is set to 1.25-1.55 times the radius of the outer arc, ensuring that the flow characteristics of the inner and outer arcs are significantly different. This ratio ensures that a significant flow rate difference can be formed when the gas flows through, thereby increasing the intensity of the turbulent flow and making the mixing of gas and fuel or gas more uniform, improving combustion efficiency.

[0045] Optionally, the central angle of the outer arc is 120-150 degrees.

[0046] The central angle of the outer arc is designed to be between 120-150 degrees to provide an appropriate flow area. This angle can both ensure the guiding effect of the gas flow and avoid excessive restriction of the flow, so that the gas can generate moderate turbulence when passing through, which helps uniform mixing and thus improves combustion efficiency.

[0047] Optionally, the support part 41 and the blocking part 42 are integrally formed.

[0048] The support part 41 and the blocking part 42 are designed to be integrally formed, ensuring stable connection between the two without gaps. This integrally formed design enhances the structural strength of the baffle 4, ensuring its stability under high-pressure gas flow, while simplifying the installation process and reducing the risk of potential leakage, which helps maintain the efficiency of the gas flow.

[0049] Optionally, the thickness of the baffle 4 is 1mm.

[0050] The thickness of the baffle 4 is designed to be 1mm to ensure that the strength is guaranteed while reducing the interference of the gas flow. The appropriate thickness allows the baffle 4 to withstand the impact of the gas flow without significantly increasing the resistance of the gas flow, thereby optimizing the gas flow and mixing process and improving the combustion efficiency.

[0051] Optionally, the baffle 4 is made of steel or powder metallurgy material.

[0052] The baffle 4 is made of steel or powder metallurgy material, which has high strength and high-temperature resistance. The choice of material ensures the durability and stability of the baffle 4 under extreme working conditions, avoiding deformation due to thermal expansion and contraction or wear, further ensuring efficient guidance of the gas flow and high efficiency of combustion.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An engine air intake structure, characterized in that: It includes an engine body, a cylinder head, an intake valve seat ring and a baffle; the cylinder head is provided with a groove, and the bottom of the groove is provided with an intake hole that matches the intake duct of the engine body; the intake valve seat ring is installed in the groove, and the intake valve seat ring matches the intake hole and the groove; the baffle is arranged between the groove and the intake valve seat ring, and a through hole is provided on the baffle, and the baffle is used to make the gas turbulent.

2. The engine air intake structure according to claim 1, characterized in that: The baffle includes a supporting portion and a blocking portion; the supporting portion is connected to the blocking portion, and the blocking portion is arranged inside the supporting portion; the supporting portion matches the air inlet and the groove; and the blocking portion is used to make the gas form turbulence.

3. The engine air intake structure according to claim 2, characterized in that: The blocking portion is crescent-shaped.

4. The engine air intake structure according to claim 3, characterized in that: The inner arc and the outer arc of the blocking portion are both circular arcs.

5. The engine air intake structure according to claim 4, characterized in that: The radius of the inner arc is 1.25-1.55 times the radius of the inner arc.

6. The engine air intake structure according to claim 4, characterized in that: The central angle of the outer arc is 120-150 degrees.

7. The engine air intake structure according to claim 2, characterized in that: The supporting portion and the blocking portion are integrally formed.

8. The engine air intake structure according to any one of claims 1 to 7, characterized in that: The thickness of the baffle is 1 mm.

9. The engine air intake structure according to any one of claims 1 to 7, characterized in that: The baffle is made of steel material or powder metallurgy material.

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