Air inlet sub-cavity anti-backfire gas engine cylinder cover
By designing sealing components 1 and sealing components 2 on the cylinder head of the gas engine, the problem of insufficient sealing performance of the cylinder head is solved, and efficient combustion chamber sealing is achieved, avoiding backfire, reducing emissions, and improving combustion efficiency.
Patent Information
- Application Number
- CN202420415074.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-05
AI Technical Summary
The sealing performance of the cylinder head of the existing gas engine is insufficient, resulting in gas or air leakage, affecting combustion efficiency, increasing safety risks, and unable to effectively promote good mixing of fuel and air, resulting in insufficient combustion and increased emission levels.
A cylinder head of an air intake chamber anti-temperature gas engine is designed, and a sealing component one and a sealing component two are used. The sealing component one is composed of a first sealing ring section and a second sealing ring section. The sealing component two comprises a sealing ring body, The skeleton and other mating components, through the design of these components, prevent the leakage of external contaminants and gases, and maintain the ideal chemical environment in the combustion chamber.
It effectively improves the sealing performance of the cylinder head, prevents gas exchange inside and outside the combustion chamber, avoids backfire, maintains appropriate pressure and temperature in the combustion chamber, reduces wear of cylinders and pistons, reduces emission levels, and improves combustion efficiency.
Smart Images
Figure CN222526415U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of engines, in particular to an air intake divided-cavity backfire-proof gas engine cylinder cover. Background Art
[0002] A gas engine is an internal combustion engine that uses gas as fuel. It can use a variety of fuels, such as natural gas, biogas, city gas, etc. The basic working principle of a gas engine is similar to that of other types of internal combustion engines. It mainly converts chemical energy into mechanical energy by using the high-temperature and high-pressure gas generated by the combustion of fuel in the cylinder to drive the piston.
[0003] The cylinder head of a gas engine is an important part of the engine. It has multiple functions such as closing the combustion chamber, supporting the combustion process, introducing fuel and discharging exhaust gas. Since gas engines differ from traditional gasoline or diesel engines in fuel characteristics, the design and functional requirements of their cylinder heads are also different.
[0004] However, in the prior art, poor sealing performance may lead to leakage of gas or air, which not only affects the combustion efficiency of the engine, but may also cause safety problems, such as backfire, backfire, etc., increasing the risk of accidents. In addition, the cylinder head design of existing gas engines may not be able to effectively promote a good mixture of fuel and air, resulting in incomplete combustion, which will reduce combustion efficiency, increase fuel consumption, and lead to higher emission levels, which cannot meet increasingly stringent environmental protection requirements. Utility Model Content
[0005] In view of the problems in the related technology, the utility model proposes an air intake split-chamber anti-backfire gas engine cylinder head to overcome the above technical problems existing in the existing related technology.
[0006] To this end, the specific technical solutions adopted by the utility model are as follows:
[0007] An intake divided-chamber anti-backfire gas engine cylinder head comprises a cylinder head body, wherein intake valves and exhaust valves are respectively arranged on both sides of the bottom end of the cylinder head body, and combustion chambers matching with the bottom of the cylinder head body are arranged at the bottom ends of the intake valves and the exhaust valves, and a spark plug mounting tube is arranged at the middle position of the top end of the combustion chamber; a sealing component 1 is arranged inside the spark plug mounting tube; a plurality of camshaft seats are arranged on the inner side of the top end of the cylinder head body, and valve guides are arranged on both sides of the camshaft seats; a sealing component 2 is arranged on the outer side of the top end of the cylinder head body, and a limiting hole 1 is arranged around the top of the cylinder head body, and a limiting block matching with the cylinder head body is arranged at one end of the outer side of the limiting hole 1.
[0008] Furthermore, in order to prevent dust, moisture or other external pollutants from entering the combustion chamber under the action of the sealing component 1, avoid pollutants interfering with the normal combustion process of the fuel, and avoid causing backfire or other poor combustion phenomena, the sealing component 1 is composed of a first sealing ring segment and a second sealing ring segment located below the first sealing ring segment, and the first sealing ring segment and the second sealing ring segment are both arranged inside the spark plug mounting tube; a groove is arranged at the bottom end of the first sealing ring segment, and the groove is arranged as a circular ring structure; a connecting component is arranged at the top of the second sealing ring segment, and the top of the connecting component extends into the groove; a plurality of circular ring grooves are arranged on the inner side wall of the groove, the connecting component includes a circular ring arranged at the top of the second sealing ring segment and located in the groove, and a plurality of hooks are arranged on the side wall of the circular ring close to the circular ring groove, the hooks are arranged as a regular triangular pyramid structure, and the plurality of hooks are arranged in a circular array in the center of the circular ring, a first circular ring convex ring is arranged on the inner side wall of the first sealing ring segment, and a second circular ring convex ring is arranged on the inner side wall of the second sealing ring segment.
[0009] Furthermore, in order to prevent leakage of air or fuel under the action of sealing component 2, sealing component 2 helps to maintain an ideal chemical environment in the combustion chamber, thereby avoiding pre-ignition or backfire of the intake chamber caused by improper mixing ratio of fuel and air, sealing component 2 helps to reduce wear of the cylinder and piston, as well as corrosion caused by contact with corrosive gases, and effectively blocks the risk of backfire. Sealing component 2 includes a sealing ring body arranged at the top of the cylinder head body, an annular groove is provided at the top of the sealing ring body, and a skeleton is arranged inside the sealing ring body; a planing opening is provided on one side of the sealing ring body, and a skeleton slot is provided on one side of the planing opening, a plug column matching the skeleton is provided at the inner top of the skeleton slot, and a limiting hole 2 matching the plug column is provided at the top of one end of the skeleton.
[0010] The beneficial effects of the utility model are:
[0011] 1. The utility model effectively improves the sealing performance of the cylinder head through the cooperation of the sealing component 1 and the sealing component 2, and prevents the gas exchange inside and outside the combustion chamber by providing high-quality sealing, which helps to maintain the appropriate pressure and temperature in the combustion chamber and avoid the intake chamber backfire caused by abnormal pressure or temperature.
[0012] 2. The utility model prevents leakage of air or fuel. The second sealing component helps maintain the ideal chemical environment in the combustion chamber, thereby avoiding pre-combustion or backfire of the intake chamber caused by an improper mixture of fuel and air. The first sealing component prevents dust, moisture or other external pollutants from entering the combustion chamber, thereby avoiding pollutants from interfering with the normal combustion process of the fuel and avoiding the occurrence of backfire or other poor combustion phenomena. The second sealing component helps reduce the wear of the cylinder and piston, as well as the corrosion caused by contact with corrosive gases, and effectively blocks the risk of backfire. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a structural schematic diagram of a cylinder head of an air intake divided cavity anti-backfire gas engine according to an embodiment of the utility model;
[0015] Figure 2 It is a structural schematic diagram of another angle of a cylinder head of an air intake split-chamber anti-backfire gas engine according to an embodiment of the utility model;
[0016] Figure 3 It is a structural schematic diagram of a sealing component 1 in a cylinder head of an intake split-chamber anti-backfire gas engine according to an embodiment of the utility model;
[0017] Figure 4 It is a schematic diagram of the development of a sealing assembly in a cylinder head of an intake split-chamber anti-backfire gas engine according to an embodiment of the utility model;
[0018] Figure 5 yes Figure 4 A partial enlarged view of the middle A;
[0019] Figure 6 It is a schematic diagram of the expansion of a sealing component 2 in a cylinder head of an intake split-chamber anti-backfire gas engine according to an embodiment of the utility model;
[0020] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;
[0021] Figure 8 The present invention is a schematic structural diagram of a sealing component 2 in a cylinder head of an intake chamber anti-backfire gas engine according to an embodiment of the present invention.
[0022] In the figure:
[0023] 1. Cylinder head body; 2. Intake valve; 3. Exhaust valve; 4. Combustion chamber; 5. Spark plug mounting tube; 6. Sealing component one; 601. First sealing ring segment; 602. Second sealing ring segment; 603. Groove; 604. Connecting component; 6041. Ring; 6042. Hook; 605. Annular groove; 606. First annular convex ring; 607. Second annular convex ring; 7. Camshaft seat; 8. Valve guide; 9. Sealing component two; 901. Sealing ring body; 902. Annular groove; 903. Framework; 904. Planing opening; 905. Framework slot; 906. Insert column; 907. Limit hole two; 10. Limit hole one; 11. Limit block. DETAILED DESCRIPTION
[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0025] According to an embodiment of the utility model, a cylinder head of a gas engine with an air intake divided cavity and anti-backfire is provided.
[0026] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 8 As shown, the intake divided-chamber anti-backfire gas engine cylinder head according to the embodiment of the utility model comprises a cylinder head body 1, intake valves 2 and exhaust valves 3 are respectively arranged on both sides of the bottom end of the cylinder head body 1, and the bottom ends of the intake valves 2 and the exhaust valves 3 are arranged with combustion chambers 4 matched with the bottom of the cylinder head body 1, and a spark plug mounting tube 5 is arranged at the middle position of the top end of the combustion chamber 4; a sealing component 6 is arranged inside the spark plug mounting tube 5; a plurality of camshaft seats 7 are arranged on the inner side of the top end of the cylinder head body 1, and valve guides 8 are arranged on both sides of the camshaft seats 7; a sealing component 9 is arranged on the outer side of the top end of the cylinder head body 1, and limiting holes 10 are arranged around the top of the cylinder head body 1, and a limiting block 11 matched with the cylinder head body 1 is arranged at one end of the outer side of the limiting hole 10.
[0027] With the aid of the above technical scheme, the utility model effectively improves the sealing performance of the cylinder head through the cooperation of sealing component 1 6 and sealing component 2 9, and prevents gas exchange inside and outside the combustion chamber by providing high-quality seals, which helps to maintain appropriate pressure and temperature in the combustion chamber and avoids intake chamber backfire due to abnormal pressure or temperature; by preventing leakage of air or fuel, sealing component 2 9 helps to maintain the ideal chemical environment in the combustion chamber, thereby avoiding pre-combustion or backfire of the intake chamber due to improper mixing ratio of fuel and air; sealing component 1 6 prevents dust, moisture or other external contaminants from entering the combustion chamber, thereby avoiding pollutants interfering with the normal combustion process of the fuel and avoiding the occurrence of backfire or other poor combustion phenomena; sealing component 2 9 helps to reduce wear of the cylinder and piston, as well as corrosion caused by contact with corrosive gases, and effectively blocks the risk of backfire.
[0028] In one embodiment, for the above-mentioned sealing component 6, the sealing component 6 is composed of a first sealing ring segment 601 and a second sealing ring segment 602 located below the first sealing ring segment 601, and the first sealing ring segment 601 and the second sealing ring segment 602 are both arranged inside the spark plug mounting tube 5; a groove 603 is arranged at the bottom end of the first sealing ring segment 601, and the groove 603 is arranged as a circular ring structure; a connecting component 604 is arranged at the top end of the second sealing ring segment 602, and the top end of the connecting component 604 extends into the groove 603; a plurality of circular grooves 605 are arranged on the inner side wall of the groove 603, and the connecting component 604 includes a groove 605 arranged at the top end of the second sealing ring segment 602. A circular ring 6041 is located in the groove 603, and a plurality of hooks 6042 are arranged on the side wall of the circular ring 6041 close to the circular groove 605. The hooks 6042 are arranged in a regular triangular pyramid structure, and the plurality of hooks 6042 are arranged in a circular array in the center of the circular ring 6041. A first circular ring convex ring 606 is arranged on the inner wall of the first sealing ring segment 601, and a second circular ring convex ring 607 is arranged on the inner wall of the second sealing ring segment 602. Therefore, under the action of the sealing component 6, the sealing component 6 prevents dust, moisture or other external pollutants from entering the combustion chamber, thereby preventing pollutants from interfering with the normal combustion process of the fuel and preventing the occurrence of backfire or other poor combustion phenomena.
[0029] In one embodiment, for the above-mentioned sealing component 29, the sealing component 29 includes a sealing ring body 901 arranged at the top of the cylinder head body 1, an annular groove 902 is opened at the top of the sealing ring body 901, and a skeleton 903 is arranged inside the sealing ring body 901; a planing opening 904 is opened on one side of the sealing ring body 901, and a skeleton slot 905 is opened on one side of the planing opening 904, and a plug post 906 matching with the skeleton 903 is arranged at the top of the inner top of the skeleton slot 905, and a limiting hole 2 907 matching with the plug post 906 is opened at the top of one end of the skeleton 903, so that under the action of the sealing component 29, by preventing the leakage of air or fuel, the sealing component 29 helps to maintain the ideal chemical environment in the combustion chamber, thereby avoiding pre-combustion or backfire of the intake chamber caused by an improper mixing ratio of fuel and air, and the sealing component 29 helps to reduce the wear of the cylinder and the piston, as well as the corrosion caused by the contact with corrosive gases, and effectively blocks the risk of backfire.
[0030] The working principle of the sealing component 29 is as follows: the sealing component includes a sealing ring body 901, a frame 903 and other matching parts, so that the sealing performance is further guaranteed, ensuring that dust cannot enter the spark plug mounting tube, and with the cooperation of the plug post 906 and the limiting hole 2907, the sealing ring body 901 can be disassembled using the planing opening 904 to ensure that the sealing component 29 can be smoothly removed.
[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.
[0032] In actual application, the cylinder head body 1 is first installed at the top of the gas engine, and the cover is installed on the top of the cylinder head body 1. The sealing component 1 6 arranged inside the spark plug installation tube and the sealing component 2 9 located at the top of the cylinder head are used to effectively block the gas exchange between the inside and outside of the combustion chamber. The sealing component 1 6 prevents external pollutants from entering the combustion chamber through its internal structure, especially the cooperation between the groove and the connecting component 604, while the sealing component 2 9 prevents the leakage of air or fuel and protects the combustion chamber from corrosive gas erosion through its annular groove and skeleton design. The stability of the internal environment of the combustion chamber is ensured, the risk of incomplete combustion of the fuel is reduced, the combustion efficiency is maintained, and the function of anti-backfire is achieved.
[0033] In summary, with the aid of the above-mentioned technical scheme of the utility model, the utility model effectively improves the sealing performance of the cylinder head through the cooperation of sealing component 1 6 and sealing component 2 9, and prevents gas exchange inside and outside the combustion chamber by providing high-quality seals, which helps to maintain appropriate pressure and temperature in the combustion chamber and avoids intake chamber backfire due to abnormal pressure or temperature; by preventing leakage of air or fuel, sealing component 2 9 helps to maintain the ideal chemical environment in the combustion chamber, thereby avoiding pre-combustion or backfire of the intake chamber due to improper mixing ratio of fuel and air; sealing component 1 6 prevents dust, moisture or other external contaminants from entering the combustion chamber, thereby avoiding pollutants interfering with the normal combustion process of the fuel and avoiding the occurrence of backfire or other poor combustion phenomena; sealing component 2 9 helps to reduce wear of the cylinder and piston, as well as corrosion caused by contact with corrosive gases, and effectively blocks the risk of backfire.
[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An intake chamber anti-backfire gas engine cylinder head, comprising a cylinder head body (1), characterized in that: An intake valve (2) and an exhaust valve (3) are respectively arranged on both sides of the bottom end of the cylinder head body (1), and a combustion chamber (4) matching with the bottom of the cylinder head body (1) is arranged at the bottom of the intake valve (2) and the exhaust valve (3), and a spark plug mounting tube (5) is arranged at the middle position of the top end of the combustion chamber (4); A sealing component 1 (6) is arranged inside the spark plug mounting tube (5); A plurality of camshaft seats (7) are arranged on the inner side of the top end of the cylinder head body (1), and valve guides (8) are arranged on both sides of the camshaft seats (7); A sealing assembly 2 (9) is arranged on the outer side of the top end of the cylinder head body (1).
2. The intake chamber anti-backfire gas engine cylinder head according to claim 1, characterized in that: Limiting holes (10) are provided around the top of the cylinder head body (1), and a limiting block (11) matching with the cylinder head body (1) is provided at one end outside the limiting hole (10).
3. The intake chamber anti-backfire gas engine cylinder head according to claim 1, characterized in that: The sealing assembly 1 (6) is composed of a first sealing ring segment (601) and a second sealing ring segment (602) located below the first sealing ring segment (601), and the first sealing ring segment (601) and the second sealing ring segment (602) are both arranged inside the spark plug mounting tube (5); A groove (603) is provided at the bottom end of the first sealing ring section (601), and the groove (603) is configured as a circular ring structure; A connecting component (604) is provided at the top end of the second sealing ring segment (602), and the top end of the connecting component (604) extends into the groove (603); A plurality of annular grooves (605) are arranged on the inner side wall of the groove (603).
4. The anti-backfire gas engine cylinder head with air intake chamber according to claim 3, characterized in that: The connecting assembly (604) comprises a circular ring (6041) arranged at the top of the second sealing ring segment (602) and located in the groove (603), and a plurality of hooks (6042) are arranged on the side wall of the circular ring (6041) close to the circular groove (605).
5. The anti-backfire gas engine cylinder head with divided air intake chamber according to claim 4, characterized in that: The hook (6042) is configured as a regular triangular pyramid structure, and a plurality of the hooks (6042) are arranged in a circular array with the center of the ring (6041).
6. The anti-backfire gas engine cylinder head with air intake chamber according to claim 5, characterized in that: A first annular convex ring (606) is provided on the inner side wall of the first sealing ring segment (601), and a second annular convex ring (607) is provided on the inner side wall of the second sealing ring segment (602).
7. The anti-backfire gas engine cylinder head with divided air intake chamber according to claim 1, characterized in that: The second sealing assembly (9) comprises a sealing ring body (901) arranged at the top end of the cylinder head body (1), an annular groove (902) is provided at the top end of the sealing ring body (901), and a frame (903) is provided inside the sealing ring body (901); A planing opening (904) is provided on one side of the sealing ring body (901), and a frame slot (905) is provided on one side of the planing opening (904). A plug post (906) matching with the frame (903) is provided at the inner top of the frame slot (905).
8. The anti-backfire gas engine cylinder head with divided air intake chamber according to claim 7, characterized in that: A second limiting hole (907) matching with the plug post (906) is provided at the top of one end of the frame (903).