CN210919258U - Cylinder cover structure of natural gas automobile engine - Google Patents
Cylinder cover structure of natural gas automobile engine Download PDFInfo
- Publication number
- CN210919258U CN210919258U CN201921397423.6U CN201921397423U CN210919258U CN 210919258 U CN210919258 U CN 210919258U CN 201921397423 U CN201921397423 U CN 201921397423U CN 210919258 U CN210919258 U CN 210919258U
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- cover
- water pipe
- mounting hole
- cylinder
- intake valve
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Abstract
The utility model relates to a natural gas automobile engine cylinder cap structure, including the cylinder cap main part, the cylinder cap main part includes the (air) intake valve mounting hole, the venthole mounting hole, valve guide rail mounting hole, cylinder cover plate and water pipe frame, set up a plurality of equidistant ventholes mounting hole on the cylinder cover plate, one side of venthole mounting hole is equipped with the (air) intake valve mounting hole, install valve guide rail mounting hole between (air) intake valve mounting hole and the venthole mounting hole, the internally mounted of cylinder cap main part has the water pipe support, the (air) intake valve mounting hole mid-mounting has the (air) intake valve, the (air) intake valve includes the gas pole, the air cock, oil duct and oil pipe, the upper end of. Oil is supplemented to the inner wall of the cylinder cover through the oil hole in the middle of the intake valve, the hardness and the heat dissipation performance of the cylinder cover are increased, the cylinder cover has higher strength, the heat dissipation performance is better, the structure is reasonable, and the service life is long. Above-mentioned natural gas automobile engine cylinder cap structure has intensity height and strong heat dissipation's advantage.
Description
Technical Field
The utility model relates to a natural gas automobile engine, especially a natural gas automobile engine cylinder cap structure.
Background
The advantages of natural gas include abundant resources, low emission pollution, low price, etc., and the natural gas is increasingly regarded as a fuel with great development prospect, and most people play more and more important roles by using the natural gas as the third largest energy source in the world after coal and oil. The main component of the fuel is methane, which is a gaseous fuel and can be fully mixed with air, so that the fuel basically has no particle emission after combustion, and the generation amount of CO after combustion is little; compared with other fossil fuels, the natural gas has the least pollutant emission in the whole life cycle of exploitation, production, storage, transportation, use and the like, so the natural gas is also called as 'clean fuel', and nowadays, petroleum fuel is increasingly tense, the natural gas is used as a new energy source in automobile engines for energy supply, but the natural gas automobile engines have higher requirements on the structure and the performance compared with oil automobile engines.
The cylinder cover of the natural gas automobile engine is arranged on the cylinder body of the natural gas automobile engine, and the cylinder is sealed from the upper part to form a combustion chamber. The natural gas automobile engine is characterized in that natural gas is filled into an engine cylinder through an air inlet valve, the natural gas is combusted after passing through a spark plug, and combusted waste gas is discharged through an air outlet valve.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a cylinder head structure of a natural gas vehicle engine, which can supplement oil to the inner wall of the cylinder head through an oil hole in the middle of an intake valve and increase the strength and heat dissipation of the cylinder head.
A cylinder cover structure of a natural gas automobile engine comprises a cylinder cover main body, wherein the cylinder cover main body comprises an inlet valve mounting hole, an outlet valve mounting hole, an air valve guide rail mounting hole, a cylinder cover plate and a water pipe frame;
the water pipe frame comprises an upper cover, a middle cover, water pipes and a bottom cover, wherein the upper cover is arranged at the upper end of the water pipe frame, a notch is formed in one side of the upper cover, the middle of the upper cover is sleeved with the stepped middle cover, the upper cover plates of the water pipes are arranged on two sides of the middle cover, the bottom cover is arranged at the lower end of the middle cover, the lower cover plates of the water pipes are arranged on two sides of the bottom cover, a water pipe groove is formed between the lower cover plates of the water pipes and the upper cover plates of the water pipes, the water pipes are arranged between the middle cover and the bottom cover, each water pipe comprises a water pipe plate and a pipeline, the middle of each pipeline is provided with the water pipe plate, the water pipe plate is arranged;
the utility model discloses an intake valve, including intake valve mounting hole, intake valve, air cock, oil duct and oil pipe, the upper end of intake valve is equipped with the air cock, the lower extreme of air cock is equipped with the air cock, oil pipe has been cup jointed to the outside of air cock, oil pipe includes outer tube, inner tube, first ring mouth and second ring mouth, the inner tube has been cup jointed at the middle part of outer tube, the air cock has been cup jointed at the middle part of inner tube, first ring mouth is installed to the one end of outer tube, the second ring mouth is installed to the one end of inner tube, the oil duct has been seted up to the lower extreme of air cock.
Preferably, the gap between the outer pipe and the inner pipe is communicated with an oil passage.
Preferably, the lower bottom surface of the middle cover and the upper surface of the bottom cover are welded, and reinforcing ribs are arranged on the inner side walls of the bottom cover and the middle cover.
Preferably, the inner side wall of the inner pipe and the inner side wall of the water pipe groove are provided with clamping teeth, and the clamping teeth are fixedly connected with the air rod and the pipeline respectively.
Preferably, the internally mounted of jar apron has a plurality of water pipe racks, pipeline, water pipe lower cover plate and the water pipe upper cover plate interconnect between a plurality of water pipe racks.
Preferably, the upper cover, the middle cover and the bottom cover are all cylindrical, the water tube plate is welded between the middle cover and the bottom cover, and the upper cover is sleeved at the upper end of the middle cover.
Preferably, spark plugs are installed on both sides of the cylinder cover plate.
The cylinder cover structure of the natural gas automobile engine, the water pipe frame arranged in the middle of the cylinder cover main body can protect the pipeline and increase the strength of the cylinder cover main body, the pipeline is tiled in the middle of the cylinder cover main body in a parallel and parallel mode, the rapid and uniform heat dissipation is ensured, in addition, the air inlet valve is opened when moving downwards, gas is input into the natural gas from the air inlet valve mounting hole to the inside of the cylinder, the inclined surface of the air tap is separated from the side wall of the mounting hole, the oil liquid in the oil pipe at the air inlet valve overflows from the oil duct, the overflowed oil liquid flows along the inclined surface of the air tap, when the air inlet valve is closed, the inclined surface of the air tap is tightly attached to the side wall of the mounting hole, the oil port is closed, the overflow of the oil liquid is stopped, the overflowed oil liquid is extruded and uniformly distributed, the oil film layer that lacks because of strikeing on the replenishment cylinder cap inner wall makes the cylinder cap inner wall heat transfer reduce, and the heat loss reduces, avoids the local high temperature of cylinder cap, compares traditional fuel automobile engine's cylinder cap, has higher intensity, and heat dispersion is better, and is rational in infrastructure, long service life.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of the cylinder head main body according to the embodiment of the present invention;
fig. 3 is an exploded view of the water pipe frame according to the embodiment of the present invention;
fig. 4 is a schematic view of the assembly of the water pipe frame according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an intake valve according to an embodiment of the present invention;
fig. 6 is a schematic view of an operation principle of an intake valve according to an embodiment of the present invention.
In the figure: 1. a cylinder head main body; 11. an intake valve mounting hole; 12. an air outlet door mounting hole; 13. mounting holes for valve guide rails; 14. a cylinder cover plate; 15. a water pipe frame; 151. an upper cover; 1511. a notch; 152. a middle cover; 1521. an upper cover plate of the water pipe; 1522. reinforcing ribs; 153. a water pipe; 1531. water tube panels; 1532. a pipeline; 154. a bottom cover; 1541. a water pipe lower cover plate; 155. a water pipe groove; 2. an intake valve; 21. a gas lever; 22. an air tap; 23. an oil passage; 24. an oil pipe; 241. an outer tube; 242. an inner tube; 2421. clamping teeth; 243. a first annular mouth; 244. a second annular opening; 3. a spark plug.
Detailed Description
In order to make the purpose, technical scheme and advantage of the utility model more clearly understand, it is right below to combine the figure and embodiment, the utility model discloses natural gas automobile engine cylinder lid structure goes on further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-2, a cylinder head structure of a natural gas automobile engine according to an embodiment of the present invention includes a cylinder head main body 1, the cylinder head main body 1 includes an intake valve mounting hole 11, an exhaust valve mounting hole 12, an air valve guide rail mounting hole 13, a cylinder cover plate 14 and a water pipe frame 15, the cylinder cover plate 14 is provided with a plurality of exhaust valve mounting holes 12 at equal intervals, the cylinder cover plate 14 is internally provided with a plurality of water pipe frames 15, a pipeline 1532 between the plurality of water pipe frames 15, a lower water pipe cover plate 1541 and an upper water pipe cover plate 1521 are connected with each other, that is, the pipeline 1532 inside the cylinder head main body 1 is an integral structure, the lower water pipe cover plate 1541 and the upper water pipe cover plate 1521 are two rectangular plates, the exhaust valve mounting hole 12 is used for mounting an exhaust valve, and has the same working principle as the intake valve 2, the exhaust valve moves downward along the exhaust valve mounting hole 12, because the diameter of the, there is the gap, waste gas such as carbon dioxide after the burning is discharged through this gap, one side of air outlet valve mounting hole 12 is equipped with (air) intake valve mounting hole 11, install valve guide mounting hole 13 between (air) intake valve mounting hole 11 and the air outlet valve mounting hole 12, valve guide mounting hole 13 is used for the installation guide rail, the guide rail is connected with (air) intake valve 2 and air outlet valve, ensure (air) intake valve 2 and air outlet valve along (air) intake valve mounting hole 11 and air outlet valve mounting hole 12 removal in-process can be in the state of perpendicular cylinder cap top surface all the time, the natural gas volume and the quick exhaust burning waste gas that control got into, the internally mounted of cylinder cap main part 1 has water pipe support 15, spark plug 3 is installed to the both sides of cylinder cap board 14, spark plug 3 is used for igniting the inside natural gas of cylinder body, cylinder cap main part 1 fixed mounting is in.
Referring to fig. 3-4, the water tube rack 15 includes an upper cover 151, a middle cover 152, water tubes 153 and a bottom cover 154, the upper end of the water tube rack 15 is provided with the upper cover 151, one side of the upper cover 151 is provided with a notch 1511, the notch 1511 is used for clamping the upper water tube cover 1521 at two sides of the middle cover 152 and the lower water tube cover 1541 of the bottom cover 154, the middle of the upper cover 151 is sleeved with the stepped middle cover 152, the lower bottom surface of the middle cover 152 and the upper surface of the bottom cover 154 are welded, and the bottom cover 154 and the inner side wall of the middle cover 152 are provided with reinforcing ribs 1522, the water tube rack 15 can not only mount the water tubes 153 to fix the tubes 1532 inside the cylinder head body 1, but also increase the stress strength of two end surfaces of the cylinder head body 1, one or two water tube racks 15 inside the cylinder head body 1 are not provided with the upper cover 151, the lower end of the water tube board 1531 is connected with the tubes 1532, the, the upper water pipe cover plates 1521 are installed on two sides of the middle cover 152, the bottom cover 154 is installed on the lower end of the middle cover 152, the upper cover 151, the middle cover 152 and the bottom cover 154 are all cylindrical, the water pipe plate 1531 is welded between the middle cover 152 and the bottom cover 154, the upper cover 151 is sleeved on the upper end of the middle cover 152, the lower water pipe cover plates 1541 are installed on two sides of the bottom cover 154, the water pipe groove 155 is installed between the lower water pipe cover plate 1541 and the upper water pipe cover plate 1, the water pipe groove 155 is used for installing a pipeline 1532 and fixing the trend of the pipeline 1532 between the middle cover 152 and the bottom cover 154, the water pipe 153 is installed between the middle cover 152 and the bottom cover 154, the water pipe 153 includes a water pipe plate 1531 and a pipeline 1532, the water pipe plate 1531 is installed in the middle of the pipeline 1532, the water pipe plate 1531 is installed between the middle cover 152 and the bottom cover 154, the pipeline 1532 is installed between the lower water pipe cover plate 1541 and the, the pipes 1532 are tiled in the middle of the cylinder head body 1 in parallel, so as to ensure rapid and uniform heat dissipation.
Referring to fig. 5-6, an intake valve 2 is installed in the middle of an intake valve installation hole 11, when the intake valve 2 is opened when moving downward, natural gas is input into a cylinder from the intake valve installation hole 11, the inclined surface of an air faucet 22 is separated from the side wall of the installation hole, oil inside an oil pipe 24 at the intake valve 2 overflows from an oil duct 23, the overflowing oil flows along the inclined surface of the air faucet 22, when the intake valve 2 is closed, the inclined surface of the air faucet 22 is tightly attached to the side wall of the installation hole to close the oil duct 23, oil overflow is stopped, the overflowed oil is squeezed and uniformly distributed on the inclined surface of the air faucet 22 and the side wall of the installation hole for lubrication, and the redundant oil flows to the inner wall of the cylinder cover by taking the intake valve installation hole 11 as the center to supplement an oil film layer which is lost due to impact on the inner wall of the cylinder cover, so, compared with the traditional cylinder cover of the fuel automobile engine, the cylinder cover has higher strength, better heat dissipation performance, reasonable structure and long service life, the intake valve 2 comprises an air rod 21, an air nozzle 22, an oil passage 23 and an oil pipe 24, the upper end of the intake valve 2 is provided with the air rod 21, the lower end of the air rod 21 is provided with the air nozzle 22, the oil pipe 24 is sleeved outside the air rod 21, the oil pipe 24 comprises an outer pipe 241, an inner pipe 242, a first annular opening 243 and a second annular opening 244, the inner pipe 242 is sleeved in the middle of the outer pipe 241, a gap between the outer pipe 241 and the inner pipe 242 is communicated with the oil passage 23, an oil storage oil chamber is arranged between the outer pipe 241 and the inner pipe 242, when the intake valve 2 is opened, oil slowly seeps out from the oil passage 23 connected with the oil chamber to the lower end to supplement oil films and lubrication, the inner pipe 242 and the water pipe groove 155 are provided with latch 2421 on the inner side walls, the latch 2421 is respectively fixedly connected with the air rod 21 and the pipe 1532, the middle part of the inner pipe 242 is sleeved with the air rod 21 for installation and fixation, one end of the outer pipe 241 is provided with a first annular opening 243, one end of the inner pipe 242 is provided with a second annular opening 244, and the lower end of the air tap 22 is provided with an oil passage 23.
The working principle is as follows: the utility model provides a natural gas automobile engine cylinder lid structure, the water pipe support 15 that the middle part of cylinder lid main part 1 set up not only can protect pipeline 1532, can also increase the intensity of cylinder lid main part 1, pipeline 1532 is the parallel mode of side by side tiling at the middle part of cylinder lid main part 1, guarantee radiating quick even, open when intake valve 2 moves down, gas is from intake valve mounting hole 11 to the inside input natural gas of cylinder, the inclined plane of air cock 22 breaks away from the mounting hole lateral wall, fluid in the oil pipe 24 of intake valve 2 department overflows from oil duct 23, the fluid that overflows flows along the inclined plane of air cock 22, when intake valve 2 closes, the inclined plane of air cock 22 hugs closely the mounting hole lateral wall, close 23 mouths of oil duct, stop fluid to overflow, the fluid that has overflowed is squeezed, the equipartition is on the inclined plane of air cock 22 and the lateral wall of mounting hole, for lubrication, and unnecessary fluid uses intake valve mounting, the oil flows to the inner wall of the cylinder cover to supplement the oil film layer which is lost due to impact on the inner wall of the cylinder cover.
In summary, the following steps: the utility model provides a natural gas automobile engine cylinder lid structure, water pipe support 15 through the middle part of cylinder lid main part 1 setting not only can protect pipeline 1532, can also increase the intensity of cylinder lid main part 1, pipeline 1532 is the parallel mode of side by side tiling at the middle part of cylinder lid main part 1, guarantee the quick even of heat dissipation, and, open when intake valve 2 moves down, gas is from the inside input natural gas of intake valve mounting hole 11 to the cylinder, the inclined plane of air cock 22 breaks away from the mounting hole lateral wall, fluid in the oil pipe 24 of intake valve 2 department overflows from oil duct 23, the fluid that overflows flows along the inclined plane of air cock 22, when intake valve 2 closes, the inclined plane of air cock 22 hugs closely the mounting hole lateral wall, close oil duct 23 mouth, stop fluid to overflow, the fluid that has overflowed is extruded, the equipartition is on the inclined plane of air cock 22 and the lateral wall of mounting, and unnecessary fluid uses intake valve mounting hole 11 as the center, flows on the inner wall of cylinder cap, supplements the oil film layer that lacks because of the impact on the cylinder cap inner wall, makes the heat transfer of cylinder cap inner wall reduce, and the heat loss reduces, avoids the local high temperature of cylinder cap, compares traditional fuel automobile engine's cylinder cap, has higher intensity, and heat dispersion is better, and is rational in infrastructure, long service life.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a natural gas automobile engine cylinder cap structure, includes cylinder cap main part (1), its characterized in that: the cylinder cover comprises a cylinder cover main body (1) and is characterized in that the cylinder cover main body (1) comprises an inlet valve mounting hole (11), an outlet valve mounting hole (12), a valve guide rail mounting hole (13), a cylinder cover plate (14) and a water pipe frame (15), the cylinder cover plate (14) is provided with a plurality of equally spaced outlet valve mounting holes (12), one side of each outlet valve mounting hole (12) is provided with the inlet valve mounting hole (11), the valve guide rail mounting hole (13) is arranged between each inlet valve mounting hole (11) and each outlet valve mounting hole (12), and the water pipe frame (15) is arranged in the cylinder cover main body (1);
the water pipe rack (15) comprises an upper cover (151), a middle cover (152), a water pipe (153) and a bottom cover (154), the upper end of the water pipe rack (15) is provided with the upper cover (151), one side of the upper cover (151) is provided with a notch (1511), the middle part of the upper cover (151) is sleeved with the stepped middle cover (152), the two sides of the middle cover (152) are provided with water pipe upper cover plates (1521), the lower end of the middle cover (152) is provided with the bottom cover (154), the two sides of the bottom cover (154) are provided with water pipe lower cover plates (1541), a water pipe groove (155) is arranged between the water pipe lower cover plates (1541) and the water pipe upper cover plates (1521), the water pipe (153) is arranged between the middle cover (152) and the bottom cover (154), the water pipe (153) comprises a water pipe plate (1531) and a pipeline (1532), the middle part of the pipeline (1531) is provided with the water pipe plate (1531), the water pipe plate (1531) is arranged between the middle cover, a pipeline (1532) is arranged between the water pipe lower cover plate (1541) and the water pipe upper cover plate (1521);
intake valve mounting hole (11) mid-mounting has intake valve (2), intake valve (2) include gas pole (21), air cock (22), oil duct (23) and oil pipe (24), the upper end of intake valve (2) is equipped with gas pole (21), the lower extreme of gas pole (21) is equipped with air cock (22), oil pipe (24) have been cup jointed to the outside of gas pole (21), oil pipe (24) include outer tube (241), inner tube (242), first ring mouth (243) and second ring mouth (244), inner tube (242) have been cup jointed at the middle part of outer tube (241), gas pole (21) have been cup jointed at the middle part of inner tube (242), first ring mouth (243) are installed to the one end of outer tube (241), second ring mouth (244) are installed to the one end of inner tube (242), oil duct (23) have been seted up to the lower extreme of air cock (22).
2. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: and a gap between the outer pipe (241) and the inner pipe (242) is communicated with the oil passage (23).
3. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: the lower bottom surface of the middle cover (152) and the upper surface of the bottom cover (154) are welded, and reinforcing ribs (1522) are arranged on the inner side walls of the bottom cover (154) and the middle cover (152).
4. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: the inner side walls of the inner pipe (242) and the water pipe groove (155) are provided with clamping teeth (2421), and the clamping teeth (2421) are respectively and fixedly connected with the air rod (21) and the pipeline (1532).
5. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: the inside mounting of jar apron (14) has a plurality of water pipe support (15), pipeline (1532), water pipe lower cover plate (1541) and water pipe upper cover plate (1521) interconnect between a plurality of water pipe support (15).
6. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: the upper cover (151), the middle cover (152) and the bottom cover (154) are all cylindrical, and the water tube plate (1531) is welded between the middle cover (152) and the bottom cover (154), and the upper cover (151) is sleeved on the upper end of the middle cover (152).
7. The cylinder head structure of a natural gas vehicle engine as defined in claim 1, wherein: spark plugs (3) are installed on two sides of the cylinder cover plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397423.6U CN210919258U (en) | 2019-08-26 | 2019-08-26 | Cylinder cover structure of natural gas automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397423.6U CN210919258U (en) | 2019-08-26 | 2019-08-26 | Cylinder cover structure of natural gas automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919258U true CN210919258U (en) | 2020-07-03 |
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ID=71363807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921397423.6U Expired - Fee Related CN210919258U (en) | 2019-08-26 | 2019-08-26 | Cylinder cover structure of natural gas automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425051A (en) * | 2019-08-26 | 2019-11-08 | 湖北玛尔帕斯动力科技有限公司 | A kind of natural gas vehicle engine cylinder cover structure |
-
2019
- 2019-08-26 CN CN201921397423.6U patent/CN210919258U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425051A (en) * | 2019-08-26 | 2019-11-08 | 湖北玛尔帕斯动力科技有限公司 | A kind of natural gas vehicle engine cylinder cover structure |
| CN110425051B (en) * | 2019-08-26 | 2024-03-15 | 湖北玛尔帕斯动力科技有限公司 | Cylinder cover structure of natural gas automobile engine |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 Termination date: 20210826 |