CN204344295U - Port fuel injection system, motor and automobile - Google Patents
Port fuel injection system, motor and automobile Download PDFInfo
- Publication number
- CN204344295U CN204344295U CN201420722469.1U CN201420722469U CN204344295U CN 204344295 U CN204344295 U CN 204344295U CN 201420722469 U CN201420722469 U CN 201420722469U CN 204344295 U CN204344295 U CN 204344295U
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- Prior art keywords
- motor
- injection system
- fuel injection
- oil
- cylinder
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Links
- 239000000446 fuel Substances 0.000 title claims abstract description 64
- 238000002347 injection Methods 0.000 title claims abstract description 43
- 239000007924 injection Substances 0.000 title claims abstract description 43
- 239000002245 particle Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 46
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000010304 firing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to port fuel injection system, it comprises fuel dispensing tube, engine operating state sensor, and engine controller, wherein fuel dispensing tube is arranged on the cylinder head of motor, and each cylinder cylinder head corresponding to motor is provided with for carrying two of gas intake ducts and corresponding with it two intake valves, at each intake duct, the intake valve place corresponding with it is provided with the oil sprayer keeping with fuel dispensing tube being communicated with, and engine controller is constructed to be coupled with engine operating state sensor and oil sprayer and communicate control the switch of oil sprayer.The utility model also relates to the motor being provided with this port fuel injection system and the automobile being configured with this motor.Port fuel injection system of the present utility model can reach and be similar to the reduction fuel consume of in-cylinder direct injection fuel injection system, the effect of emissions reduction, effectively can reduce again the cost of production of development cost and component simultaneously.
Description
Technical field
The utility model relates to a kind of port fuel injection system, and relates to the motor being provided with this port fuel injection system and the automobile being configured with this motor, belongs to automotive engine applications.
Background technique
At automotive field, country to the fuel consume Limited Doses of passenger car and emission request more and more higher, make each main engine factory all be optimized design to motor for reducing fuel consume and emissions reduction.In order to reduce oil consumption and emissions reduction, combustion system of engine needs to improve combustion efficiency, and this just requires that the component of oil supply system provide to combustion system can the response of rapid combustion, and provides the fuel oil of efficient burning, can also take into account cylinder temperature cooling simultaneously.
In-cylinder direct injection fuel injection system, as a kind of new oil supply system, batch application in a part of motor, this system changes conventional port-Fuel-Injected mode directly to firing chamber oil spout, effectively can improve combustion efficiency, and improving the atomizing effect of oil spout by increasing oil pressure simultaneously, making that the fuel particles of atomization is less, burning response is rapider, greatly reduce aflame hydrocarbon emission simultaneously.But it is pointed out that this system is to the part requirements of oil supply system and higher to the requirement of engine combustion exploitation, and its development cost is larger.
Therefore, urgently on the basis of engine fuel system conventional at present, the port fuel injection system that a kind of cost benefit is higher is proposed.
Model utility content
The purpose of this utility model is to provide a kind of port fuel injection system, and relate to the motor being provided with this port fuel injection system and the automobile being configured with this motor, thus effectively can solve the problem of the above-mentioned and other aspect existed in prior art.
For realizing above-mentioned object, the utility model have employed following technological scheme:
A kind of port fuel injection system, it comprises fuel dispensing tube, for the engine operating state sensor of the rotating speed and load that sense motor, and engine controller, wherein said fuel dispensing tube is arranged on the cylinder head of described motor, and each cylinder described cylinder head corresponding to described motor is provided with for carrying two of gas intake ducts and corresponding with it two intake valves, at each intake duct, the intake valve place corresponding with it is provided with the oil sprayer keeping with described fuel dispensing tube being communicated with, and described engine controller is constructed to be coupled with described engine operating state sensor and described oil sprayer and communicate control the switch of described oil sprayer.
In above-mentioned port fuel injection system, preferably, the diameter range of the oil mist particles that described oil sprayer sprays is between 30 to 100 microns.
In above-mentioned port fuel injection system, preferably, the load of motor comprises the first load area and the second load area, described motor is greater than its load at the first load area at the load of the second load area, wherein when described motor is in the first load area, described motor with idling or lower than 1200 rpms rotating speed travel operating mode under, described engine controller controls corresponds to a closedown in two oil sprayers of each cylinder, and another is opened, wherein when described motor is in the second load area, described motor with idling or lower than 2400 rpms rotating speed travel operating mode under, two oil sprayers that described engine controller controls corresponds to each cylinder are opened simultaneously, so that to the oil spout simultaneously of two intake ducts.
In above-mentioned port fuel injection system, preferably, described oil sprayer is fixed on described intake duct by clip.
In above-mentioned port fuel injection system, preferably, described fuel dispensing tube and described clip are made up of stainless steel.
A kind of motor, described motor is provided with above-mentioned port fuel injection system, and described motor is the motor of the two double valve of intake valve of single cylinder.
A kind of automobile, described configuration of automobiles has above-mentioned motor.
The beneficial effects of the utility model are: port fuel injection system of the present utility model, on the basis of the oil supply system of prior art, being sprayed oil mist particles size by reducing, being improved oil beam jetted angular distribution and achieve with lower cost and be similar to the reduction fuel consume of in-cylinder direct injection fuel injection system, the effect of emissions reduction.On the other hand, this port fuel injection system not only reduces combustion system and the requirement to oil-fired system component, and technology is more ripe, reliability is higher, and then effectively extends the working life of component.
Accompanying drawing explanation
Below with reference to drawings and Examples, the technical solution of the utility model is described in further detail.Wherein:
Fig. 1 is the structural representation of the distribution piping assembly of an embodiment of port fuel injection system of the present utility model.
Fig. 2 is the structural representation after distribution piping assembly in Fig. 1 is installed to cylinder head.
Fig. 3 is the oil sprayer of port fuel injection system in Fig. 1 and the partial enlargement structural representation of intake duct.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Easy understand, according to the technical solution of the utility model, is not changing under connotation of the present utility model, and one of ordinary skill in the art can propose the various structures mode that can mutually replace and implementation.Therefore, following examples and accompanying drawing are only the exemplary illustrations to the technical solution of the utility model, and should not be considered as of the present utility model all or the restriction be considered as technical solutions of the utility model or restriction.
Fig. 1 shows the structural representation of the distribution piping assembly of an embodiment of port fuel injection system of the present utility model, this port fuel injection system comprises fuel dispensing tube 1, engine operating state sensor for the rotating speed and load that sense motor, and engine controller.Usually, motor is made up of parts such as cylinder head 2, cylinder block and crankcases, wherein cylinder head 2 is arranged on above cylinder block, some firing chambers are formed from top seal cylinder block, and cylinder block comprises one or more cylinder as a whole, the concrete quantity of firing chamber is then corresponding with the quantity of cylinder.Visible further combined with Fig. 2, in this example, the cylinder head 2 of motor corresponding to each cylinder is provided with for carrying two of gas intake ducts 3 and corresponding with intake duct 3 two intake valve (not shown), this intake duct 3 directly leads to above-mentioned firing chamber, for carrying air inlet, wherein, be provided with near the intake valve place corresponding with it oil sprayer 4 keeping with fuel dispensing tube 1 being communicated with at each intake duct 3, make for single cylinder two oil sprayers 4 can according to different operating modes when intake valve is opened individually or simultaneously to two intake duct 3 injected fuel.Preferably, oil sprayer 4 can be fixed on intake duct 3 by means of such as parts such as clip 5 grade, as shown in Figure 3.In order to more clearly show the annexation of each component, do not draw engine operating state sensor and engine controller in the drawings, this engine controller is constructed to be coupled with engine operating state sensor and oil sprayer 4 and communicate control the switch of oil sprayer.
Those of ordinary skill in the art can recognize, in order to improve rate of burning and burning quality further, oil sprayer 4 can be designed to be able to the oil mist particles of spraying the less SMD average diameter of particle (after the fuel-oil atmozation), and the diameter range of the oil mist particles that such as this oil sprayer 4 sprays is between 30 to 100 microns.Can clearly see from Fig. 3, each intake duct 3 is respectively arranged with oil sprayer 4 and the spray angle of oil sprayer is more easily controlled, and the gas being mixed with fuel oil can more fully promptly burn in cylinder.On the other hand, accurate spray angle can effectively avoid the mist of oil sprayed on the inwall of intake duct 3, produce less desirable wet wall phenomenon.
In conjunction with above-described embodiment in other preferred embodiment, the load of motor has been divided into two regions by the engine controller according to port fuel injection system of the present utility model: the first load area and the second load area, motor is greater than its load at the first load area at the load of the second load area, wherein when motor is in the first load area, motor with idling or lower than 1200 rpms rotating speed travel operating mode under, engine operating state sensor senses the rotating speed of motor under this operating mode and load, and the rotating speed of motor and load signal are sent to engine controller, engine controller controls corresponds to an oil sprayer closedown of each cylinder subsequently, and another oil sprayer is opened, to save oil consumption.When motor is in the second load area, at motor with under idling or the operating mode (such as climb, start to walk, anxious acceleration etc.) that travels lower than the rotating speed of 2400 rpms, engine operating state sensor senses the rotating speed of motor under this operating mode and load, and the rotating speed of motor and load signal are sent to engine controller, engine controller controls is opened corresponding to two oil sprayers of each cylinder simultaneously subsequently, to the oil spout simultaneously of two intake ducts.In brief, by the distribution design of two fuel injector flow sizes, the scheme adopting single oil sprayer to spray when idling and low speed, provides low engine speed moment of torsion to export, to meet the low-speed stability of motor.Under the operating modes such as the large load of low engine speed and full load, realize valve opening and spray and scavenging, and coordinate the raising of fuel feeding oil pressure, improve Engine torque further and export, and reduce engine knock tendency, reduce oil consumption and hydrocarbon emission.
As an example, in order to increase the structural strength of above-mentioned fuel dispensing tube 1 and clip 5, and the working life of elongated component, this fuel dispensing tube 1 and clip 5 all can be made up of resistant materials such as such as stainless steels.
In sum, port fuel injection system of the present utility model, on the basis of available engine oil supply system, develops a kind of oil supply system of new low cost.Need it is once more emphasized that, the fuel injection quantity of single for conventional single cylinder oil sprayer is assigned on two oil sprayers of single cylinder by port fuel injection system of the present utility model, by distributing the flow of single cylinder duel fuel injector, reduce oil sprayer spray the size of oil mist particles and improve oil beam jetted angular distribution, not only can increase substantially velocity of combustion and burning quality, and can also effectively reduce hydrocarbon emission and oil consumption, reach a kind of effect being similar to the energy-saving and emission-reduction of in-cylinder direct injection fuel injection system, therefore this port fuel injection system is very suitable for be applied on motor, especially the motor of the two double valve of intake valve of single cylinder, and this motor is attached on automobile, to give full play of these technical advantages of the present utility model.
Be enumerated above some specific embodiments and illustrate port fuel injection system of the present utility model in detail, and relate to the motor being provided with this port fuel injection system and the automobile being configured with this motor, this a few example is only for principle of the present utility model and mode of execution thereof are described, but not to restriction of the present utility model, when not departing from spirit and scope of the present utility model, those of ordinary skill in the art can also make various distortion and improvement.Therefore, all equivalent technological schemes all should belong to category of the present utility model also by every claim of the present utility model is limited.
Claims (7)
1. a port fuel injection system, it comprises fuel dispensing tube, for the engine operating state sensor of the rotating speed and load that sense motor, and engine controller, wherein said fuel dispensing tube is arranged on the cylinder head of described motor, and each cylinder described cylinder head corresponding to described motor is provided with for carrying two of gas intake ducts and corresponding with it two intake valves, it is characterized in that, at each intake duct, the intake valve place corresponding with it is provided with the oil sprayer keeping with described fuel dispensing tube being communicated with, and described engine controller is constructed to be coupled with described engine operating state sensor and described oil sprayer and communicate control the switch of described oil sprayer.
2. port fuel injection system according to claim 1, is characterized in that, the diameter range of the oil mist particles that described oil sprayer sprays is between 30 to 100 microns.
3. port fuel injection system according to claim 1 and 2, it is characterized in that, the load of motor comprises the first load area and the second load area, described motor is greater than its load at the first load area at the load of the second load area, wherein when described motor is in the first load area, described motor with idling or lower than 1200 rpms rotating speed travel operating mode under, described engine controller controls corresponds to a closedown in two oil sprayers of each cylinder, and another is opened, wherein when described motor is in the second load area, described motor with idling or lower than 2400 rpms rotating speed travel operating mode under, two oil sprayers that described engine controller controls corresponds to each cylinder are opened simultaneously, so that to the oil spout simultaneously of two intake ducts.
4. port fuel injection system according to claim 1 and 2, is characterized in that, described oil sprayer is fixed on described intake duct by clip.
5. port fuel injection system according to claim 4, is characterized in that, described fuel dispensing tube and described clip are made up of stainless steel.
6. a motor, is characterized in that, described motor is provided with the port fuel injection system according to any one of claim 1-5, and described motor is the motor of the two double valve of intake valve of single cylinder.
7. an automobile, is characterized in that, the with good grounds motor according to claim 6 of described configuration of automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722469.1U CN204344295U (en) | 2014-11-27 | 2014-11-27 | Port fuel injection system, motor and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722469.1U CN204344295U (en) | 2014-11-27 | 2014-11-27 | Port fuel injection system, motor and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344295U true CN204344295U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420722469.1U Expired - Fee Related CN204344295U (en) | 2014-11-27 | 2014-11-27 | Port fuel injection system, motor and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422344A (en) * | 2015-11-27 | 2016-03-23 | 上汽通用汽车有限公司 | Air inlet fuel injection system, turbo supercharged engine and control method of turbo supercharged engine |
| CN109386403A (en) * | 2018-09-29 | 2019-02-26 | 哈尔滨工程大学 | It is a kind of for have twin-inlet gas, dual fuel engine bivalve type fuel gas ejecting device and its control method |
-
2014
- 2014-11-27 CN CN201420722469.1U patent/CN204344295U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422344A (en) * | 2015-11-27 | 2016-03-23 | 上汽通用汽车有限公司 | Air inlet fuel injection system, turbo supercharged engine and control method of turbo supercharged engine |
| CN109386403A (en) * | 2018-09-29 | 2019-02-26 | 哈尔滨工程大学 | It is a kind of for have twin-inlet gas, dual fuel engine bivalve type fuel gas ejecting device and its control method |
| CN109386403B (en) * | 2018-09-29 | 2021-10-26 | 哈尔滨工程大学 | Double-valve type gas injection device for gas and dual-fuel engine with double gas inlet channels and control method of double-valve type gas injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |