CN210622933U - Cylinder cover of heavy methanol engine and heavy methanol engine - Google Patents
Cylinder cover of heavy methanol engine and heavy methanol engine Download PDFInfo
- Publication number
- CN210622933U CN210622933U CN201921834015.2U CN201921834015U CN210622933U CN 210622933 U CN210622933 U CN 210622933U CN 201921834015 U CN201921834015 U CN 201921834015U CN 210622933 U CN210622933 U CN 210622933U
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- Prior art keywords
- methanol
- injection
- cylinder head
- air inlet
- gasoline
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 255
- 238000002347 injection Methods 0.000 claims abstract description 127
- 239000007924 injection Substances 0.000 claims abstract description 127
- 239000003502 gasoline Substances 0.000 claims abstract description 49
- 239000000446 fuel Substances 0.000 claims abstract description 33
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 abstract description 11
- 230000009466 transformation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a heavy methanol engine's cylinder head and heavy methanol engine belongs to the methanol engine field. The cylinder head includes: the bottom of the air inlet surface is connected with the bottom surface and arranged at an obtuse angle with the bottom surface; a plurality of intake ports each extending from the intake surface toward the interior of the cylinder head and communicating with the intake manifold; the mounting surface is arranged between the top and the bottom of the air inlet surface; a plurality of sets of injection passages extending from the mounting surface to an interior of the cylinder head, respectively, each set of injection passages including: the methanol injection channel is connected with the methanol injection system and is used for injecting methanol fuel in the methanol injection system into the air inlet channel; and the gasoline injection channel is connected with the gasoline injection system and is used for injecting the gasoline fuel in the gasoline injection system into the air inlet channel. The utility model also provides a heavy methanol engine who has above-mentioned cylinder head. The utility model discloses a heavy methanol engine can practice thrift the transformation cost to improve cold start difficulty and the incomplete problem of fuel atomization.
Description
Technical Field
The utility model relates to a methanol engine field especially relates to a heavy methanol engine's cylinder head and heavy methanol engine.
Background
With the coming implementation of the national six-emission regulation and the development of the national economy, the dual pressure of automobile exhaust emission and energy consumption is brought. According to the energy structure and the current market situation of China, an energy diversification road is taken, the energy safety is relieved, the environmental quality is improved, and methanol is one of the best choices for energy diversification.
The initial platforms of heavy methanol engines in the current market are mostly diesel engines and natural gas engines. Due to the physical and chemical properties of methanol, the cold start of a methanol engine is difficult, and a gasoline injection system needs to be additionally arranged to solve the cold start problem of the methanol engine. The general diesel engine or natural gas engine cylinder cover is low in overall height and compact in space, and two sets of fuel injection systems (methanol and gasoline) are arranged to meet the requirements of a methanol engine, so that no space is arranged.
If two sets of fuel injection systems (methanol and gasoline) are arranged on the cylinder cover, the cylinder cover needs to be redesigned, and meanwhile, the production line needs to be changed, so that the investment is huge. The fuel injection system (methanol and gasoline) is generally arranged on an intake manifold, but because the fuel injector is arranged at the lowest point of the intake manifold, the fuel injector is easy to freeze, so that the cold start of the engine is difficult and the fuel atomization is poor, so that the unburned methanol is more, the methanol is corrosive, and the unburned methanol corrodes other parts of the engine after entering an oil sump, thereby affecting the reliability of the engine. Therefore, the problems of high modification cost, difficult cold start and incomplete fuel atomization exist when the heavy-duty engine is modified into the heavy-duty methanol engine in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heavy methanol engine's cylinder head can practice thrift and reform transform the cost to improve cold start difficulty and the incomplete problem of fuel atomization.
Another object of the utility model is to provide a heavy methanol engine with above-mentioned cylinder head.
In particular, the utility model provides a heavy methanol engine's cylinder head, the cylinder head has top surface and bottom surface, the cylinder head still includes:
the bottom of the air inlet surface is connected with the bottom surface and arranged at an obtuse angle with the bottom surface;
a plurality of intake ports each extending from the intake face to an interior of the cylinder head and communicating with an intake manifold;
the mounting surface is arranged between the top of the air inlet surface and the bottom surface;
a plurality of sets of injection passages extending from the mounting face to the cylinder head interior, respectively, each set of injection passages including:
the methanol injection channel is connected with the methanol injection system and used for injecting methanol fuel in the methanol injection system into the air inlet channel;
and the gasoline injection channel is connected with the gasoline injection system and used for injecting the gasoline fuel in the gasoline injection system into the air inlet channel.
Optionally, each methanol injection channel and each gasoline injection channel are arranged at a preset angle with the mounting surface, so that the methanol injection system and fuel oil in the gasoline injection system are injected to the middle of the air inlet channel.
Optionally, a line connecting the center of the methanol injection channel and the center of the gasoline injection channel in each group of the injection channels is arranged at an acute angle with the horizontal direction.
Optionally, one air inlet channel is correspondingly arranged right below each group of injection channels.
Optionally, the mounting surface is arranged at an obtuse angle to the top surface.
Optionally, the air inlet surface includes a plurality of air inlet unit surfaces arranged at intervals in the horizontal direction, and each air inlet unit surface corresponds to one air inlet channel.
Particularly, the utility model also provides a heavy methanol engine, including air intake manifold, methyl alcohol injection system, petrol injection system and above-mentioned arbitrary the cylinder head, air intake manifold with a plurality of intake ducts one-to-ones intercommunication of cylinder head, methyl alcohol injection system with petrol injection system respectively with the multiunit methyl alcohol injection channel and petrol injection channel among the injection channel correspond continuously.
The utility model discloses install two injection systems on the cylinder head for in fuel in two injection systems can the direct injection to the intake duct, shorten from engine valve distance, valve department temperature height is favorable to the fuel evaporation, and fuel atomization is effectual, thereby solves the problem that fuel atomization is bad, not burnt methanol is many, and then has improved the economic nature and the reliability of engine. Meanwhile, the temperature of the cylinder cover is high, the two injection systems are positioned at the upper part of the air inlet channel, and the water accumulation phenomenon cannot be generated at the position of fuel injection, so that the oil injector cannot be frozen, and the problem of difficult cold start of the engine is solved.
Further, the utility model discloses only need carry out simple change through the structure to the cylinder head, the production line carries out simple change simultaneously and can realize with existing product collinear production. Because the production line does not need to be reset, the investment is less, and the modification cost is saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic side view of a cylinder head according to an embodiment of the present invention;
fig. 2 is a schematic front view of a cylinder head according to an embodiment of the present invention;
fig. 3 is an assembly schematic of a cylinder head, intake manifold, methanol injection system, and gasoline injection system according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic side view of a cylinder head 100 according to an embodiment of the present invention. Fig. 2 is a schematic front view of a cylinder head 100 according to an embodiment of the present invention. Fig. 3 is an assembly schematic of a cylinder head 100, an intake manifold 200, a methanol injection system 300, and a gasoline injection system 400 according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a cylinder head 100 for a heavy duty methanol engine, the cylinder head 100 having a top surface 10 and a bottom surface 20. In one embodiment, as shown in FIG. 2, the cylinder head 100 further includes an intake face 30, a plurality of intake ports 40, a mounting face 50, and a plurality of sets of injection passages. As shown in fig. 1, and also in fig. 3, the bottom of the air intake surface 30 is connected to the bottom surface 20 and is disposed at an obtuse angle to the bottom surface 20. As shown in fig. 3, a plurality of intake ports 40 each extend from the intake face 30 toward the interior of the cylinder head 100, and communicate with an intake manifold 200. The mounting surface 50 is disposed between the top of the intake surface 30 and the bottom surface 20. A plurality of sets of injection passages extend from the mounting face 50 toward the interior of the cylinder head 100, respectively, each set including a methanol injection passage 60 and a gasoline injection passage 70. The methanol injection passage 70 is connected to the methanol injection system 300 for injecting the methanol fuel in the methanol injection system 300 into the intake duct 40. The gasoline injection passage 70 is connected to the gasoline injection system 400 for injecting the gasoline fuel in the gasoline injection system 400 into the intake passage 40.
The cylinder head 100 of the embodiment arranges the air inlet surface 30 as an inclined surface for connecting the intake manifold 200, and the inclination of the air inlet surface 30 can ensure the installation surface 50 area of the intake manifold 200 under the condition of occupying less height of the cylinder head 100, thereby indirectly increasing the height for installing the methanol injection system 300 and the gasoline injection system 400, namely the height of the installation surface 50, so that the installation surface 50 with the increased height is enough for installing the methanol injection system 300 and the gasoline injection system 400, thereby solving the problem that two injection systems cannot be installed on the cylinder head 100 at the same time. Further, since the two injection systems are mounted on the cylinder head 100, it is possible to directly inject the methanol injection system 300 and the gasoline injection system 400 into the intake passage 40 through the methanol injection passage 60 and the gasoline injection passage 70, respectively, instead of disposing the two injection systems at the bottom of the exhaust manifold due to the height limitation of the cylinder head 100 as in the prior art.
That is to say, this embodiment can install two injection systems on cylinder head 100 for the fuel in two injection systems can direct injection to the intake duct 40 in, and apart from engine valve distance shorten, the high evaporation that is favorable to the fuel of valve department temperature, and it is effectual to fire the oil atomization, thereby solves the problem that the oil atomization is bad, unburned methanol is many, and then has improved the economic nature and the reliability of engine. Meanwhile, the temperature of the cylinder cover 100 is high, the two injection systems are positioned at the upper part of the air inlet passage 40, and the water accumulation phenomenon cannot be generated at the fuel injection position, so that the oil injector cannot be frozen, and the problem of difficult cold start of the engine is solved.
Further, the present embodiment can realize the production in line with the existing product only by simply changing the structure of the cylinder head 100 and at the same time, simply changing the production line. Because the production line does not need to be reset, the investment is less, and the modification cost is saved.
In another embodiment, each methanol injection channel 60 and each gasoline injection channel 70 are arranged at a predetermined angle with respect to the installation surface 50 such that the fuel in the methanol injection system 300 and the gasoline injection system 400 is injected to the middle of the intake duct 40.
In this embodiment, by adjusting the arrangement angles of the methanol injection channel 60 and the gasoline injection channel 70, the injection position of the controller can be controlled, and the methanol and the gasoline can be injected to the middle of the air inlet channel 40 to be sufficiently mixed with the gas in the air inlet manifold 200 while having a higher temperature, which is beneficial to improving the combustion performance. Of course, in other embodiments, the methanol injection passage 60 and the gasoline injection passage 70 may be arranged at positions where their injection positions are close to the valve, so as to further increase their temperatures and improve their fuel atomization effects.
In one embodiment, the line connecting the center of the methanol injection channel 60 and the center of the gasoline injection channel 70 in each set of injection channels is arranged at an acute angle to the horizontal.
That is to say, the methanol injection channel 60 and the gasoline injection channel 70 in each group of injection channels are provided with a gap in the height and horizontal directions, so that the methanol injection system 300 and the gasoline injection system 400 are arranged in a staggered manner, and the space saving is facilitated.
Alternatively, one intake passage 40 is arranged directly below each set of injection passages. Such an arrangement further facilitates thorough mixing of methanol, gasoline and gases within the exhaust manifold, thereby improving combustion performance.
In one embodiment, the mounting surface 50 is disposed at an obtuse angle to the top surface 10. As shown in fig. 3, the mounting surface 50 is not disposed exactly perpendicular to the top surface 10, but disposed at an obtuse angle, which increases the area of the mounting surface 50, so that the arrangement space of the methanol injection system 300 and the gasoline injection system 400 is more spacious.
In another embodiment, as shown in fig. 2, the intake surface 30 includes a plurality of intake unit surfaces 301 arranged at intervals in the horizontal direction, and each intake unit surface 301 corresponds to one intake duct 40. The air inlet surface 30 in the embodiment is a plurality of independent air inlet unit surfaces 301, and is not a whole surface, so that the material of the cylinder cover 100 is saved to a certain extent, and the weight is reduced.
The utility model also provides a heavy methanol engine, including air intake manifold 200, methyl alcohol injection system 300, gasoline injection system 400 and any kind of cylinder head 100 of above-mentioned. The intake manifold 200 is in one-to-one correspondence with the intake passages 40 of the cylinder head 100, and the methanol injection system 300 and the gasoline injection system 400 are respectively in correspondence with the methanol injection passage 60 and the gasoline injection passage 70 of the injection passages.
The heavy methanol engine of this embodiment can install two injection systems on cylinder head 100 for fuel in two injection systems can direct injection to intake duct 40 in, shortens apart from engine valve distance, and the high evaporation that is favorable to the fuel of valve department temperature, and fuel atomization is effectual, thereby solves the problem that fuel atomization is bad, unburned methanol is many, and then has improved the economic nature and the reliability of engine. Meanwhile, the temperature of the cylinder cover 100 is high, the two injection systems are positioned at the upper part of the air inlet passage 40, and the water accumulation phenomenon cannot be generated at the fuel injection position, so that the oil injector cannot be frozen, and the problem of difficult cold start of the engine is solved.
Further, the collinear production with the existing product can be achieved only by simply changing the structure of the cylinder head 100 while the production line is simply changed. Because the production line does not need to be reset, the investment is less, and the modification cost is saved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A cylinder head for a heavy duty methanol engine, the cylinder head having a top face and a bottom face, the cylinder head further comprising:
the bottom of the air inlet surface is connected with the bottom surface and arranged at an obtuse angle with the bottom surface;
a plurality of intake ports each extending from the intake face to an interior of the cylinder head and communicating with an intake manifold;
the mounting surface is arranged between the top of the air inlet surface and the bottom surface;
a plurality of sets of injection passages extending from the mounting face to the cylinder head interior, respectively, each set of injection passages including:
the methanol injection channel is connected with the methanol injection system and used for injecting methanol fuel in the methanol injection system into the air inlet channel;
and the gasoline injection channel is connected with the gasoline injection system and used for injecting the gasoline fuel in the gasoline injection system into the air inlet channel.
2. The cylinder head of claim 1,
each methanol injection channel and each gasoline injection channel all with the angle of predetermineeing is arranged to the mounting surface, makes methanol injection system with fuel injection in the gasoline injection system extremely the middle part of intake duct.
3. The cylinder head of claim 2,
and a connecting line of the center of the methanol injection channel and the center of the gasoline injection channel in each group of injection channels is arranged at an acute angle with the horizontal direction.
4. The cylinder head of claim 3,
and one air inlet channel is correspondingly arranged right below each group of injection channels.
5. The cylinder head according to any one of claims 1 to 4,
the mounting surface and the top surface are arranged in an obtuse angle.
6. The cylinder head of claim 1,
the air inlet surface comprises a plurality of air inlet unit surfaces which are arranged at intervals along the horizontal direction, and each air inlet unit surface corresponds to one air inlet channel.
7. A heavy-duty methanol engine, characterized by comprising an intake manifold, a methanol injection system, a gasoline injection system and the cylinder head according to any one of claims 1 to 6, wherein the intake manifold is communicated with a plurality of intake channels of the cylinder head in a one-to-one correspondence manner, and the methanol injection system and the gasoline injection system are respectively connected with a methanol injection channel and a gasoline injection channel in a plurality of groups of injection channels in a correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834015.2U CN210622933U (en) | 2019-10-29 | 2019-10-29 | Cylinder cover of heavy methanol engine and heavy methanol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834015.2U CN210622933U (en) | 2019-10-29 | 2019-10-29 | Cylinder cover of heavy methanol engine and heavy methanol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210622933U true CN210622933U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834015.2U Active CN210622933U (en) | 2019-10-29 | 2019-10-29 | Cylinder cover of heavy methanol engine and heavy methanol engine |
Country Status (1)
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| CN (1) | CN210622933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233540A (en) * | 2021-09-29 | 2022-03-25 | 潍柴动力股份有限公司 | Cold-start air inlet pipe device of methanol engine and control method thereof |
-
2019
- 2019-10-29 CN CN201921834015.2U patent/CN210622933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233540A (en) * | 2021-09-29 | 2022-03-25 | 潍柴动力股份有限公司 | Cold-start air inlet pipe device of methanol engine and control method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Country or region after: China Patentee after: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Country or region before: China Patentee before: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240307 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd. Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Country or region before: China Patentee before: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |