CN216240951U - Methanol double-nozzle structure of two-valve compression ignition engine - Google Patents
Methanol double-nozzle structure of two-valve compression ignition engine Download PDFInfo
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- CN216240951U CN216240951U CN202122903582.2U CN202122903582U CN216240951U CN 216240951 U CN216240951 U CN 216240951U CN 202122903582 U CN202122903582 U CN 202122903582U CN 216240951 U CN216240951 U CN 216240951U
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Abstract
The utility model discloses a methanol double-nozzle structure of a two-valve compression-ignition engine, which relates to the technical field of vehicle engines and comprises a cylinder cover and a combustion chamber, wherein a methanol nozzle and a diesel nozzle are arranged at the bottom of the cylinder cover, the methanol nozzle and the diesel nozzle are arranged at the bottom of the cylinder cover, the nozzle openings at the tail ends of the methanol nozzle and the diesel nozzle are exposed out of the bottom surface of the cylinder cover, the methanol nozzle and the diesel nozzle are positioned at one side of an air inlet manifold in the cylinder cover and are not provided with an air inlet channel, and the methanol nozzle and the diesel nozzle respectively form a certain included angle with a piston plane and a crankshaft central line and have a certain spatial position with the center of a piston, so that the device can realize accurate direct injection of methanol fuel in the cylinder on a compression engine in actual use, then realize dual-fuel mixed combustion by injecting diesel compression ignition, and can effectively reduce emissions of HC, particulate matters and the like of the engine, the utilization rate of methanol is improved, the utilization rate of diesel oil is reduced, and the dependence rate of petroleum products is reduced.
Description
Technical Field
The utility model relates to the technical field of vehicle engines, in particular to a methanol dual-nozzle structure of a two-valve compression ignition engine.
Background
Under the background of increasingly exhausted petroleum resources, the development of various novel clean alternative fuels becomes the key research point of various countries. Methanol is used as one of clean energy sources, and harmful substances in the exhaust emission of combustion products are less, so that the methanol fuel becomes the first choice for replacing petroleum fuel in partial provinces, cities and regions in China.
At present, methanol fuel automobiles are quite popular in many areas, the automobiles are usually provided with an original point combustion engine to be additionally provided with a methanol nozzle at an air inlet to inject methanol fuel to replace gasoline or fuel gas and the like, and at present, the automobile engine is low in methanol utilization rate and only realizes single-fuel use, so that a methanol double-nozzle structure of a two-valve compression ignition engine is provided.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a methanol double-nozzle structure of a two-valve compression-ignition engine, which solves the problems that at present, methanol fuel automobiles are quite popular in many areas, the automobiles are usually provided with an air inlet methanol nozzle to inject methanol fuel to replace gasoline or fuel gas and the like on an original point combustion engine, and at present, the utilization rate of methanol of the automobile engines is low and only single fuel is used.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a methanol dual-nozzle structure vehicle engine of a two-valve compression ignition engine comprises a cylinder cover and a combustion chamber, wherein a methanol nozzle and a diesel nozzle are arranged at the bottom of the cylinder cover, the nozzle end spouts of the methanol nozzle and the diesel nozzle are exposed out of the bottom surface of the cylinder cover, an air inlet valve and an exhaust valve are arranged in the cylinder cover, an air inlet manifold is arranged outside the cylinder cover, a piston is connected inside the combustion chamber in a sliding manner, the bottom end of the piston is provided with a groove, the opening end of the groove is positioned in the combustion chamber to form the maximum diameter, the mounting positions of the methanol nozzle and the diesel nozzle and the top surface of the piston form a first inclination angle, and form the third inclination with the bent axle central line, methyl alcohol nozzle and diesel nozzle all are located one side of intake manifold in the cylinder cap and do not have the position of intake duct, the top surface of diesel nozzle and piston forms the second inclination.
As a further technical scheme of the utility model, the first inclination angle between the methanol nozzle and the piston ranges from 15 degrees to 85 degrees.
As a further technical scheme of the utility model, the third inclination angle between the methanol nozzle and the central line of the crankshaft ranges from 40 degrees to 90 degrees.
As a further aspect of the utility model, the methanol injector tip defines a second tip location between the tip and the vertical crankshaft over-the-piston centerline, and the second tip location is greater than 0 and less than 1/2 of the maximum diameter of the combustion chamber interior.
As a further aspect of the utility model, the methanol nozzle has a first end position defined between the end of the methanol nozzle and the crankshaft centerline, and the first end position has a dimension greater than 0 and less than 1/2 of the maximum diameter of the interior of the combustion chamber.
As a further technical scheme of the utility model, the second inclination angle between the diesel nozzle and the piston ranges from 45 degrees to 90 degrees.
As a further technical scheme of the utility model, the angle formed between the diesel nozzle and the central line of the crankshaft ranges from 45 degrees to 90 degrees.
As a further technical scheme of the utility model, the methanol nozzle and the diesel nozzle are positioned at one side of the intake manifold and are not in interference with each other.
Advantageous effects
The utility model provides a methanol double-nozzle structure of a two-valve compression-ignition engine. Compared with the prior art, the method has the following beneficial effects:
the utility model provides a two valve compression ignition engine methyl alcohol dual spray nozzle structure, through install methyl alcohol nozzle and diesel nozzle in the bottom of cylinder cap, and the nozzle tip spout of methyl alcohol nozzle and diesel nozzle exposes the cylinder cap bottom surface, and methyl alcohol nozzle and diesel nozzle all are located one side of intake manifold in the cylinder cap and do not have the position of intake duct, methyl alcohol nozzle and diesel nozzle respectively with the piston plane, the bent axle central line becomes certain contained angle, and have certain spatial position with the piston center, thereby the device is in the in-service use, can realize the accurate straight methyl alcohol fuel of spouting in the jar on compression engine, then jet diesel oil compression ignition realizes dual fuel mixture, can improve effectual reduction engine HC, emissions such as particulate matter, improve methyl alcohol rate of utilization, reduce diesel oil rate of utilization, reduce the dependence rate of petroleum product.
Drawings
FIG. 1 is a schematic structural diagram of a methanol dual-nozzle structure of a two-valve compression-ignition engine;
FIG. 2 is a bottom view of a two-valve compression ignition engine methanol dual nozzle arrangement;
FIG. 3 is a bottom view of a two-valve compression ignition engine methanol dual nozzle arrangement.
In the figure: 1. a first inclination angle; 2. a second inclination angle; 3. a methanol nozzle; 4. a cylinder cover; 5. a groove; 6. a piston; 7. a combustion chamber; 8. a maximum diameter; 9. an intake valve; 10. an exhaust valve; 13. a third inclination angle; 14. a first end position; 15. a second end position; 16. a crankshaft centerline; 17. perpendicular crankshaft crosses the piston central line; 18. a diesel nozzle; 19. an intake manifold; 21. an air inlet channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a methanol dual nozzle structure technical scheme of a two-valve compression ignition engine: a methanol double-nozzle structure of a two-valve compression-ignition engine comprises a cylinder cover 4 and a combustion chamber 7, and is characterized in that a methanol nozzle 3 and a diesel nozzle 18 are installed at the bottom of the cylinder cover 4, nozzle end spouts of the methanol nozzle 3 and the diesel nozzle 18 are exposed out of the bottom surface of the cylinder cover 4, an air inlet valve 9 and an exhaust valve 10 are installed inside the cylinder cover 4, an air inlet manifold 19 is arranged outside the cylinder cover 4, a piston 6 is connected inside the combustion chamber 7 in a sliding mode, a groove 5 is formed in the bottom end of the piston 6, the opening end of the groove 5 is located inside the combustion chamber 7 and is provided with a maximum diameter 8, a first inclination angle 1 is formed between the installation positions of the methanol nozzle 3 and the diesel nozzle 18 and the top surface of the piston 6, a third inclination angle 13 is formed between the methanol nozzle 3 and the diesel nozzle 18 and the crankshaft center line 16, the methanol nozzle 3 and the diesel nozzle 18 are both located on one side of the air inlet manifold 19 in the cylinder cover 4 and are not provided with an air inlet channel 21, and a second inclination angle 2 is formed between the top surfaces of the diesel nozzle 18 and the piston 6, the first inclination angle 1 between the methanol nozzle 3 and the piston 6 is in the range of 15-85 degrees, the third inclination angle 13 between the methanol nozzle 3 and the crankshaft center line 16 is in the range of 40-90 degrees, the second end position 15 is formed between the end of the methanol nozzle 3 and the vertical crankshaft piston center line 17, the size of the second end position 15 is more than 0 and less than 1/2 of the maximum diameter 8 in the combustion chamber 7, the first end position 14 is formed between the end of the methanol nozzle 3 and the crankshaft center line 16, the size of the first end position 14 is more than 0 and less than 1/2 of the maximum diameter 8 in the combustion chamber 7, the second inclination angle 2 between the diesel nozzle 18 and the piston 6 is in the range of 45-90 degrees, the angle formed between the diesel nozzle 18 and the crankshaft center line 16 is in the range of 45-90 degrees, and the methanol nozzle 3 and the diesel nozzle 18 are both positioned at one side of the intake manifold 19, and do not interfere with each other.
The working principle of the utility model is as follows: when the device is used, the methanol nozzle and the diesel nozzle are installed at the bottom of the cylinder cover, the nozzle end nozzle of the methanol nozzle and the diesel nozzle is exposed out of the bottom surface of the cylinder cover, the methanol nozzle and the diesel nozzle are located on one side of an air inlet manifold in the cylinder cover and do not have the position of an air inlet channel, the methanol nozzle and the diesel nozzle are respectively located on the plane of a piston and the central line of a crankshaft to form a certain included angle, and have a certain spatial position with the center of the piston, so that the device can realize accurate direct injection of methanol fuel in the cylinder on a compression engine, and then realize dual-fuel mixed combustion by injecting diesel compression ignition, can improve the effective HC of the reduced engine, discharge of particles and the like, improve the methanol utilization rate, reduce the diesel utilization rate and reduce the dependence rate of petroleum products.
Claims (8)
1. The methanol double-nozzle structure of the two-valve compression-ignition engine comprises a cylinder cover (4) and a combustion chamber (7), and is characterized in that a methanol nozzle (3) and a diesel nozzle (18) are installed at the bottom of the cylinder cover (4), nozzle end spouts of the methanol nozzle (3) and the diesel nozzle (18) expose out of the bottom surface of the cylinder cover (4), an air inlet valve (9) and an air outlet valve (10) are installed inside the cylinder cover (4), an air inlet manifold (19) is arranged outside the cylinder cover (4), a piston (6) is connected inside the combustion chamber (7) in a sliding mode, a groove (5) is formed in the bottom end of the piston (6), the opening end of the groove (5) is located inside the combustion chamber (7) and is formed with a maximum diameter (8), and a first inclination angle (1) is formed between the installation positions of the methanol nozzle (3) and the diesel nozzle (18) and the top surface of the piston (6), and form third inclination (13) with crankshaft center line (16), methanol nozzle (3) and diesel nozzle (18) all are located one side of intake manifold (19) and do not have the position of intake duct (21) in cylinder cap (4), the top surface of diesel nozzle (18) and piston (6) forms second inclination (2).
2. A two-valve compression ignition engine methanol dual nozzle arrangement as claimed in claim 1, wherein the first angle of inclination (1) between the methanol nozzle (3) and the piston (6) is in the range 15 ° to 85 °.
3. A two-valve compression ignition engine methanol dual nozzle arrangement as claimed in claim 2, characterized in that the third angle of inclination (13) between the methanol nozzle (3) and the crankshaft centre line (16) is in the range 40 ° to 90 °.
4. A two valve compression ignition engine methanol dual injector arrangement as claimed in claim 3, wherein the methanol injector (3) has a second end position (15) between its end and the vertical crankshaft over-piston centre line (17), and the second end position (15) has a dimension greater than 0 and less than 1/2 of the maximum diameter (8) of the interior of the combustion chamber (7).
5. A two-valve compression ignition engine methanol dual nozzle arrangement as claimed in claim 4, characterized in that the methanol nozzle (3) has a first end position (14) defined between its end and the crankshaft centre line (16), and the first end position (14) has a dimension greater than 0 and less than 1/2 of the largest diameter (8) inside the combustion chamber (7).
6. A two-valve compression ignition engine methanol dual injector arrangement as claimed in claim 2, wherein the second angle of inclination (2) between the diesel injector (18) and the piston (6) is in the range 45 ° to 90 °.
7. A two-valve compression ignition engine methanol dual injector arrangement as claimed in claim 6, wherein the diesel injector (18) forms an angle with the crankshaft centre line (16) in the range 45 ° to 90 °.
8. A two-valve compression ignition engine methanol dual injector arrangement as claimed in claim 7, characterised in that the methanol injector (3) and the diesel injector (18) are located on one side of the intake manifold (19) in non-interfering positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122903582.2U CN216240951U (en) | 2021-11-25 | 2021-11-25 | Methanol double-nozzle structure of two-valve compression ignition engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122903582.2U CN216240951U (en) | 2021-11-25 | 2021-11-25 | Methanol double-nozzle structure of two-valve compression ignition engine |
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| CN216240951U true CN216240951U (en) | 2022-04-08 |
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| CN202122903582.2U Active CN216240951U (en) | 2021-11-25 | 2021-11-25 | Methanol double-nozzle structure of two-valve compression ignition engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028016A (en) * | 2023-10-09 | 2023-11-10 | 潍柴动力股份有限公司 | In-cylinder direct injection methanol engine and combustion chamber thereof and combustion chamber parameter determining method |
-
2021
- 2021-11-25 CN CN202122903582.2U patent/CN216240951U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028016A (en) * | 2023-10-09 | 2023-11-10 | 潍柴动力股份有限公司 | In-cylinder direct injection methanol engine and combustion chamber thereof and combustion chamber parameter determining method |
| CN117028016B (en) * | 2023-10-09 | 2024-01-12 | 潍柴动力股份有限公司 | In-cylinder direct injection methanol engine and combustion chamber thereof and combustion chamber parameter determining method |
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