CN210264955U - Multi-point gas injection device - Google Patents
Multi-point gas injection device Download PDFInfo
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- CN210264955U CN210264955U CN201920991018.0U CN201920991018U CN210264955U CN 210264955 U CN210264955 U CN 210264955U CN 201920991018 U CN201920991018 U CN 201920991018U CN 210264955 U CN210264955 U CN 210264955U
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- China
- Prior art keywords
- injection
- gas
- common rail
- rail pipe
- air inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to an injection apparatus of multiple spot injection gas, including air inlet joint (2), temperature pressure sensor (3), two at least injection part (4), air intake branch (5), common rail pipe (1), air inlet joint (2), temperature pressure sensor (3) install respectively at common rail pipe (1) both ends, common rail pipe (1) fix on air intake branch (5) and compress tightly all injection part (4), injection part (4) install on air intake branch (5). Compared with the prior art, the utility model has the advantages of guarantee that each jar internal combustion is abundant.
Description
Technical Field
The utility model relates to an engine air intake technique especially relates to an injection apparatus of multiple spot injection gas.
Background
With the increasing severity of air pollution and the increasingly strict emission conditions, natural gas is widely used as a clean energy source in the industries of automobiles, power generation, engineering and the like. The natural gas starting and air intake modes comprise single-point injection and multi-point injection, wherein the single-point injection refers to mixing of gas and air before entering an air inlet channel, and the multi-point injection refers to direct of natural gas to each branch pipe of the air inlet channel through a single injection part. The single-point injection has slow air inlet, and the air quantity entering each cylinder after mixing is difficult to ensure, which can cause poor consistency of each cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multi-point injection gas injection device for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the injection device for injecting the fuel gas at multiple points comprises an air inlet joint, a temperature pressure sensor, at least two injection components and an air inlet branch pipe, and further comprises a common rail pipe, wherein the air inlet joint and the temperature pressure sensor are respectively arranged at two ends of the common rail pipe, the common rail pipe is fixed on the air inlet branch pipe and tightly presses all the injection components, and the injection components are arranged on the air inlet branch pipe;
preferably, the common rail pipe is fixed on the air inlet branch pipe through a bolt.
Preferably, the injection member is mounted in each intake manifold of the engine, and one injection member is mounted in each intake manifold.
Preferably, the injection component is connected with the corresponding intake branch pipe through a damping gasket.
Preferably, the air inlet joint is mounted on the common rail pipe through threads.
Preferably, the probe head of the temperature and pressure sensor is mounted in the gas flow area of the common rail pipe.
Preferably, the air inlet branch pipe is provided with an opening for the injection component to inject the natural gas.
Preferably, the spray member comprises a nozzle.
Compared with the prior art, the utility model has the advantages of it is following:
firstly, the reliability is high: the accurate control of the gas inflow of the multi-point injection gas is adopted, and the full combustion in each cylinder is ensured.
Secondly, response is fast: the injection component is arranged on the engine branch pipe, the time for the fuel gas to enter each cylinder body is short, the engine dynamic property is higher, and the response is fast.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
the device comprises a common rail pipe 1, an air inlet joint 2, an air inlet joint 3, a temperature and pressure sensor 4, an injection component 5, an air inlet branch pipe 6 and a damping gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the injection device for multi-point injection of fuel gas comprises an air inlet joint 2, a temperature and pressure sensor 3, at least two injection components 4, an air inlet branch pipe 5 and a common rail pipe 1, wherein the air inlet joint 2 and the temperature and pressure sensor 3 are respectively arranged at two ends of the common rail pipe 1, the common rail pipe 1 is fixed on the air inlet branch pipe 5 and presses all the injection components 4, and the injection components 4 are arranged on the air inlet branch pipe 5;
the injection component 4 sequentially injects natural gas into the engine intake branch pipe 5 according to the working sequence of the engine.
The common rail pipe 1 is fixed on the air inlet branch pipe 5 through bolts, so that the common rail pipe is more convenient to install, and the firmness is improved.
The injection component 4 is arranged on each air inlet branch pipe 5 of the engine, and each air inlet branch pipe 5 is provided with one injection component 4, so that the air inflow of each air inlet branch pipe is accurately controlled respectively, and the full combustion in each cylinder of the engine is ensured.
The injection component 4 is connected with the corresponding air inlet branch pipe 5 through a damping gasket 6, so that vibration caused by injection is greatly reduced, and the performance is further improved.
The air inlet joint 2 is arranged on the common rail pipe 1 through threads, and the installation is more convenient through the thread installation.
The detecting head of the temperature and pressure sensor 3 is arranged in the gas flowing area of the common rail pipe 1, so that the detection precision of the sensor is more accurate.
The air inlet branch pipe 5 is provided with an opening for the injection component 4 to inject natural gas, the injection component 4 comprises a nozzle which is used for aligning the opening, thereby the natural gas injection is quicker, the time for the gas to enter each cylinder body is short, the engine dynamic is higher, and the response is quick.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides an injection apparatus of gas is spouted to multiple spot, includes air intake joint (2), temperature pressure sensor (3), two at least injection part (4) and air intake branch (5), its characterized in that, injection apparatus still include common rail pipe (1), air intake joint (2), temperature pressure sensor (3) install respectively at common rail pipe (1) both ends, common rail pipe (1) fix on air intake branch (5) and compress tightly all injection part (4), injection part (4) install on air intake branch (5).
2. A multi-point injection gas injecting apparatus as claimed in claim 1, wherein said common rail pipe (1) is fixed to the intake manifold (5) by bolts.
3. A multi-injection gas injection apparatus according to claim 1, wherein said injection member (4) is installed in each intake branch pipe (5) of the engine, and one injection member (4) is installed in each intake branch pipe (5).
4. A multi-point injection device for fuel gas according to claim 3, wherein said injection member (4) is connected to the corresponding intake manifold (5) by means of a damping gasket (6).
5. A multi-point injection gas injection apparatus as claimed in claim 1, wherein said air inlet connector (2) is threadedly mounted on said common rail pipe (1).
6. A multi-point gas injection apparatus as claimed in claim 1, wherein the probe of said temperature and pressure sensor (3) is mounted in the gas flow area of the common rail (1).
7. A multi-point injection gas injection apparatus as claimed in claim 1, wherein said intake manifold (5) is provided with openings for said injection member (4) to inject natural gas.
8. A multi-point injection gas injection apparatus as claimed in claim 1, wherein said injection member (4) comprises a nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991018.0U CN210264955U (en) | 2019-06-28 | 2019-06-28 | Multi-point gas injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991018.0U CN210264955U (en) | 2019-06-28 | 2019-06-28 | Multi-point gas injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210264955U true CN210264955U (en) | 2020-04-07 |
Family
ID=70045964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920991018.0U Active CN210264955U (en) | 2019-06-28 | 2019-06-28 | Multi-point gas injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210264955U (en) |
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2019
- 2019-06-28 CN CN201920991018.0U patent/CN210264955U/en active Active
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