CN210106034U - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
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- CN210106034U CN210106034U CN201920685578.3U CN201920685578U CN210106034U CN 210106034 U CN210106034 U CN 210106034U CN 201920685578 U CN201920685578 U CN 201920685578U CN 210106034 U CN210106034 U CN 210106034U
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- glow plug
- combustion engine
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Abstract
An internal combustion engine comprising a plurality of cylinders, each cylinder having a corresponding cylinder head disposed thereon, wherein: at least 2 glow plug connecting holes are formed in each cylinder cover, corresponding glow plugs are arranged in the glow plug connecting holes, and at least 2 glow plugs extend into a cylinder of the internal combustion engine and are started alternately. By adopting the scheme, the problem of difficult ignition of the internal combustion engine can be solved, and the effectiveness of continuous working of the glow plug can be ensured.
Description
Technical Field
The embodiment of the utility model provides a relate to vehicle technical field, especially relate to an internal-combustion engine.
Background
An internal combustion engine is a power machine, which is a heat engine that burns fuel inside the machine and directly converts the heat energy released by the fuel into power. Internal combustion engines are widely used in various industries of national economy, such as automobiles, agricultural machinery, engineering machinery, ships, trains, aviation, ships, war vehicles and the like.
The ignition mode of an internal combustion engine is usually compression ignition, and when the pressure in a cylinder of the internal combustion engine reaches a certain pressure, the gas mixed with fuel self-ignites.
However, with compression ignition to ignite the fuel, the fuel is not readily ignited when the engine is cold started.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves is the difficulty of igniting.
In order to solve the technical problem, the embodiment of the utility model provides an internal-combustion engine, including a plurality of cylinder, all be provided with corresponding cylinder head on every cylinder, wherein: at least 2 glow plug connecting holes are formed in each cylinder cover, corresponding glow plugs are arranged in the glow plug connecting holes, and at least 2 glow plugs extend into a cylinder of the internal combustion engine and are started alternately.
Optionally, each cylinder head is provided with 2 glow plug connecting holes, and the 2 glow plug connecting holes are respectively provided with a first glow plug and a second glow plug.
Optionally, the first glow plug and the cylinder head form a preset first angle; the second glow plug and the cylinder cover form a preset second angle.
Optionally, the cylinder cover is provided with an oil nozzle connecting hole, and an oil nozzle is arranged in the oil nozzle connecting hole.
Optionally, the oil nozzle is respectively at a preset angle with the at least 2 glow plugs.
Compared with the prior art, the utility model discloses technical scheme has following beneficial effect:
the internal combustion engine comprises a plurality of cylinders, at least 2 glow plug connecting holes are formed in a cylinder cover of each cylinder, corresponding glow plugs are arranged in the glow plug connecting holes, namely at least 2 glow plugs are arranged on each cylinder, at least 2 glow plugs are started alternately, and at least one glow plug works, so that ignition of fuel is facilitated, and the problem of difficulty in ignition can be avoided.
In addition, each cylinder of the internal combustion engine is provided with at least two glow plugs, the two glow plugs work alternately, and when one of the glow plugs is in failure, the other glow plug can continue to work, so that the stability of the internal combustion engine can be improved, and the service life of the internal combustion engine can be prolonged.
Drawings
Fig. 1 is a schematic view of a portion of an internal combustion engine at a viewing angle in an embodiment of the present invention;
fig. 2 is a partial schematic structural diagram of an internal combustion engine in another view according to an embodiment of the present invention.
Detailed Description
As described above, the fuel is ignited by compression ignition, and when the internal combustion engine is in cold start, the fuel is not easily ignited.
The embodiment of the utility model provides an in, internal-combustion engine includes a plurality of cylinder, is provided with 2 at least glow plug connecting holes on the cylinder head of every cylinder, is provided with corresponding glow plug in every glow plug connecting hole, also is provided with 2 at least glow plugs on every cylinder, and 2 at least glow plugs start in turn, and at least one glow plug is at work, consequently is favorable to igniting of fuel to can avoid the problem of the difficulty of igniting.
In order to make the above objects, features and advantages of the embodiments of the present invention more comprehensible, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
It has been found that the starting difficulty when using alternative fuels for diesel internal combustion engines (such as methanol, ethanol, dimethyl ether, etc.) is due to: the alternative fuel and diesel oil have differences in physical and chemical properties such as cetane number and latent heat of vaporization. In the case of an alternative fuel having a large latent heat of vaporization and a low cetane number, such as methanol, which is injected into the cylinder, a large amount of heat is absorbed, so that the temperature of the air-fuel mixture in the cylinder is drastically lowered, the concentration of the alternative fuel in a gaseous state in the air-fuel mixture is drastically lowered, only a small amount of the fuel is vaporized, and a part of the foggy fuel adheres to the cylinder wall or other parts of the internal combustion engine, so that the fuel near the cylinder wall is not sufficiently combusted, and therefore, the startability of the internal combustion engine is poor.
Referring to fig. 1, a schematic diagram of a partial structure of an internal combustion engine at a viewing angle according to an embodiment of the present invention is shown. Fig. 2 shows a schematic partial structure diagram of an internal combustion engine at another viewing angle according to an embodiment of the present invention. The structure of the internal combustion engine will be described with reference to fig. 1 and 2.
In specific implementation, the embodiment of the present invention provides an internal combustion engine, which may include a plurality of cylinders 10, and each cylinder 10 is provided with a corresponding cylinder head 11. At least 2 glow plug connecting openings (not shown in fig. 1 and 2) are provided in each cylinder head 11, and a corresponding glow plug is provided in each glow plug connecting opening, which glow plug projects into the internal cylinder 12 of the internal combustion engine. When the internal combustion engine is working, at least 2 glow plugs are alternatively started.
In particular implementations, the number of glow plugs provided with a cylinder in an internal combustion engine may be 2, 3, or other numbers.
In the embodiment of the present invention, fig. 1 and 2 show schematic diagrams of two glow plugs disposed on the cylinder head. Each cylinder head 11 of the internal combustion engine is provided with 2 glow plug connecting holes, and a first glow plug 13 and a second glow plug 14 are respectively arranged in the 2 glow plug connecting holes.
In a specific implementation, the first glow plug 13 is at a preset first angle with respect to the cylinder head 11; the second glow plug 14 is at a predetermined second angle with respect to the cylinder head 11. The first angle and the second angle may be the same or different. The actual values of the first angle and the second angle can be set according to the type and the structure of the internal combustion engine or the actual application requirement.
In specific implementation, the first glow plug 13 and the second glow plug 14 may be symmetrically disposed on the cylinder head 11, or asymmetrically disposed on the cylinder head 11. The specific arrangement of the first glow plug 13 and the second glow plug 14 can be set according to the arrangement of other components on the cylinder head 11 and the actual application requirements. For example, the first glow plug 13 and the second glow plug 14 need to be arranged so as to avoid the water jacket, and the arrangement of the intake valve 16, the exhaust valve 17, and the like is combined.
In the specific implementation, the cylinder head 11 is provided with an injection nozzle connection hole (not shown in fig. 1 and 2) in which an injection nozzle 15 is arranged. The fuel injection nozzle 15 is provided with a plurality of fuel injection holes (not shown in fig. 1 and 2), and fuel injected from the fuel injection holes is mixed with air in an inner cylinder of the internal combustion engine to form a mixture. The first glow plug 13 or the second glow plug 14 may be heated and reach a certain temperature after being activated, and may be ignited after the mixture contacts the first glow plug 13 or the second glow plug 14 having a certain temperature.
In a specific implementation, the oil injection nozzles are respectively at a preset angle with the at least 2 glow plugs.
In an embodiment of the present invention, the oil nozzle 15 and the first glow plug 13 are preset at a third angle.
In another embodiment of the present invention, the oil nozzle 15 and the second glow plug 14 are at a predetermined fourth angle.
In specific implementation, the third angle or the fourth angle may be the same or different, and specific values of the third angle or the fourth angle may be set according to actual requirements of ignition of the internal combustion engine.
In the embodiment of the present invention, the third angle may be set so that the mixture of the fuel sprayed from the partial fuel spray hole of the fuel spray nozzle 15 and the air after mixing can be sprayed to a position that helps the ignition of the first glow plug 13. For example, the mixture after the fuel injected from the partial fuel injection hole is mixed with the air may be directly injected to the first glow plug 13.
In the embodiment of the present invention, the mixture after the fuel sprayed from the partial fuel spray holes of the fuel spray nozzle 15 is mixed with the air can be hit to a position that helps the ignition of the second glow plug 14 by setting the fourth angle. For example, the mixture of the fuel injected from part of the injection holes and the air may be directly applied to the second glow plug 14.
According to the scheme, the internal combustion engine comprises a plurality of cylinders, at least 2 glow plug connecting holes are formed in a cylinder cover of each cylinder, corresponding glow plugs are arranged in the glow plug connecting holes, namely at least 2 glow plugs are arranged on each cylinder, at least 2 glow plugs are started alternately, and at least one glow plug works, so that ignition of fuel is facilitated, the problem of difficult ignition can be avoided, and the effectiveness of continuous working of the glow plugs can be ensured.
In addition, because the embodiment of the utility model provides an internal-combustion engine in have at least one glow plug to be in operating condition all the time to need not adopt the mode of compression ignition to ignite the fuel. Therefore, the internal combustion engine provided in the embodiment of the present invention can not only burn traditional diesel fuel, but also burn low viscosity fuel, such as alternative fuel and gasoline, such as methanol, ethanol, dimethyl ether, etc.
Furthermore, the embodiment of the utility model provides an internal-combustion engine not only can burn traditional diesel fuel, also can burn low viscosity fuel, like alternative fuel and petrol such as methyl alcohol, ethanol, dimethyl ether, these alternative fuels have high energy efficiency, low pollution, low cost, the diversified and energy safety's of energy advantage, consequently, this internal-combustion engine has good application prospect. It should be noted that, in the embodiment of the present invention, the low viscosity fuel refers to a fuel having a viscosity smaller than that of diesel.
Furthermore, the first glow plug and the second glow plug are set to work alternately, so that the working stability of the internal combustion engine can be improved, and the service lives of the first glow plug, the second glow plug and the internal combustion engine can be prolonged.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (5)
1. An internal combustion engine, comprising a plurality of cylinders, each cylinder having a corresponding cylinder head disposed thereon, wherein: at least 2 glow plug connecting holes are formed in each cylinder cover, corresponding glow plugs are arranged in the glow plug connecting holes, and at least 2 glow plugs extend into an inner cylinder of the internal combustion engine and are started alternately.
2. The internal combustion engine of claim 1, wherein each cylinder head has 2 glow plug attachment openings, and wherein the 2 glow plug attachment openings have a first glow plug and a second glow plug disposed therein, respectively.
3. An internal combustion engine according to claim 2, wherein the first glow plug is at a predetermined first angle to the cylinder head; the second glow plug and the cylinder cover form a preset second angle.
4. An internal combustion engine according to any one of claims 1 to 3, wherein the cylinder head is provided with an injector attachment bore in which an injector is disposed.
5. The internal combustion engine of claim 4, wherein said fuel injectors are each at a predetermined angle to said at least 2 glow plugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685578.3U CN210106034U (en) | 2019-05-14 | 2019-05-14 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920685578.3U CN210106034U (en) | 2019-05-14 | 2019-05-14 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106034U true CN210106034U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920685578.3U Active CN210106034U (en) | 2019-05-14 | 2019-05-14 | Internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106034U (en) |
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2019
- 2019-05-14 CN CN201920685578.3U patent/CN210106034U/en active Active
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