CN106050495B - Dual-purpose fuel spraying system and fuel injection control device - Google Patents
Dual-purpose fuel spraying system and fuel injection control device Download PDFInfo
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- CN106050495B CN106050495B CN201610550272.8A CN201610550272A CN106050495B CN 106050495 B CN106050495 B CN 106050495B CN 201610550272 A CN201610550272 A CN 201610550272A CN 106050495 B CN106050495 B CN 106050495B
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- methanol
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- relief valve
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- fuel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention proposes a kind of dual-purpose fuel spraying system and fuel injection control devices, the dual-purpose fuel spraying system includes two-bit triplet valve (1), which has outlet (11), first entrance (12) and second entrance (13)；First entrance (12) is connected to outlet (11) by first passage, and second entrance (13) is connected to outlet (11) by second channel；Two-bit triplet valve (1) further includes the spool (5) for realizing the switching between first passage and second channel；Outlet (11) is connected to fuel nozzle (2)；Dual-purpose fuel spraying system further includes methanol tank, petrol tank, for aspirate the gasoline in petrol tank and make its to fuel nozzle (2) convey petrol pump (3) and for aspirate the methanol in methanol tank and make its to fuel nozzle (2) convey methanol pump (4).Dual-purpose fuel spraying system of the invention and fuel injection control device are ingenious in design, practical.
Description
Technical field
The present invention relates to automotive field more particularly to a kind of dual-purpose fuel spraying systems and fuel injection control device.
Background technique
Methanol is a kind of new clean type vehicle fuel, just in expanded application.Currently, methanol mainly answering on automobile
It is with scheme: installs a set of methanol spraying system additional on petrol engine, which includes methanol tank, methanol pipeline
And methanol spray rail injector assembly etc..But the program not can guarantee methanol nozzle and can be mounted on best eject position, this meeting
Influence the discharge of motor vehicle fuel and the dynamic characteristics of automobile.
Summary of the invention
The present invention not can guarantee for the existing technical solution for installing a set of methanol spraying system additional on petrol engine
The problem of methanol nozzle can be mounted on best eject position, this will affect the discharge of motor vehicle fuel and the dynamic characteristics of automobile,
Propose a kind of dual-purpose fuel spraying system and fuel injection control device.
The technical solution that the present invention proposes regarding to the issue above is as follows:
The invention proposes a kind of dual-purpose fuel spraying system, including two-bit triplet valve, which has
Outlet, first entrance and second entrance；First entrance is connected to outlet by first passage, and second entrance and outlet pass through second
Channel connection；Two-bit triplet valve further includes the spool for realizing the switching between first passage and second channel；Two three
The outlet of port valve door is connected to fuel nozzle；Dual-purpose fuel spraying system further includes methanol tank, petrol tank, respectively with petrol tank and
The first entrance connection of two-bit triplet valve, the petrol pump for aspirating the gasoline in petrol tank and conveying it to fuel nozzle
And it is connect respectively with the second entrance of methanol tank and two-bit triplet valve, for aspirating the methanol in methanol tank and making its Xiang Ran
Expect the methanol pump of nozzle conveying.
It further include be separately connected methanol pump and two-bit triplet valve the in the above-mentioned dual-purpose fuel spraying system of the present invention
The first of two entrances holds pressure relief valve.
It further include be separately connected petrol pump and two-bit triplet valve the in the above-mentioned dual-purpose fuel spraying system of the present invention
The second of one entrance holds pressure relief valve.
The invention also provides a kind of fuel injection control devices, comprising the following steps:
Step S1, a kind of dual-purpose fuel spraying system as described above is provided；
Step S2, start petrol pump and shut down methanol pump, spool is made to block second channel and first passage is connected, to make
Fuel nozzle exports gasoline；Or start methanol pump and shut down petrol pump, spool is made to block first passage and second channel is connected,
To make fuel nozzle export methanol.
The invention also provides a kind of fuel injection control devices, comprising the following steps:
Step S1, a kind of dual-purpose fuel spraying system as described above is provided；
Step S2, start petrol pump and shut down methanol pump, while also the decompression function for pressing relief valve is held in starting first, makes valve
Core blocks second channel and first passage is connected, so that fuel nozzle be made to export gasoline；Or starts methanol pump and shut down gasoline
Pump, while also starting first holds pressure relief valve and holds pressure function, so that spool is blocked first passage and second channel is connected, to make
Fuel nozzle exports methanol.
The invention also provides a kind of fuel injection control devices, comprising the following steps:
Step S1, a kind of dual-purpose fuel spraying system as described above is provided；
Step S2, start petrol pump and shut down methanol pump, while also starting first is held the decompression function of pressure relief valve and opened
Dynamic second hold pressure relief valve hold pressure function, so that spool is blocked second channel and first passage be connected, to keep fuel nozzle defeated
Gasoline out；Or start methanol pump and shut down petrol pump, while also starting first hold pressure relief valve hold pressure function and starting the
Two hold the decompression function of pressure relief valve, so that spool is blocked first passage and second channel is connected, so that fuel nozzle be made to export first
Alcohol.
The present invention is by constructing a kind of dual-purpose fuel spraying system, within the system, realizes first using two-bit triplet valve
The switching of pure and mild gasoline, to realize the use of methanol fuel on automobile.Due to being realized using two-bit triplet valve to methanol
Use is switched over gasoline, in this way, fuel nozzle has been shared in the dual-purpose fuel spraying system, so as to avoid methanol spray
Mouth cannot be mounted on the case where best eject position.Dual-purpose fuel spraying system of the invention and fuel injection control device design
It is ingenious, it is practical.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 shows the schematic diagram of the dual-purpose fuel spraying system of first embodiment of the invention；
Fig. 2 shows the use states of dual-purpose fuel spraying system of the invention with reference to figure；
Fig. 3 shows the schematic diagram of the dual-purpose fuel spraying system of second embodiment of the invention；
Fig. 4 shows the schematic diagram of the dual-purpose fuel spraying system of third embodiment of the invention.
Specific embodiment
The technical problem to be solved by the present invention is the existing skill for installing a set of methanol spraying system additional on petrol engine
Art scheme, which not can guarantee methanol nozzle, can be mounted on best eject position, this will affect the discharge of motor vehicle fuel and moving for automobile
Force characteristic.The technical solution proposed by the present invention for solving the technical problem is: constructing a kind of dual-purpose fuel spraying system, is at this
In system, the switching of methanol and gasoline is realized using two-bit triplet valve, to realize the use of methanol fuel on automobile.Due to
Use is switched over to methanol and gasoline using the realization of two-bit triplet valve, in this way, sharing in the dual-purpose fuel spraying system
Fuel nozzle, the case where so as to avoid methanol nozzle cannot being mounted on best eject position.
In order to keep technical purpose of the invention, technical solution and technical effect apparent, in order to art technology
Personnel understand and implement the present invention, and the present invention will be further described in detail below in conjunction with the accompanying drawings and the specific embodiments.
First embodiment
Specifically, the present embodiment fuel injection control device the following steps are included:
Step S1, a kind of dual-purpose fuel spraying system is provided；
Referring to Fig.1, Fig. 1 shows the schematic diagram of the dual-purpose fuel spraying system of first embodiment of the invention.The dual-purpose combustion
Expect that spraying system includes two-bit triplet valve 1, which has outlet 11, first entrance 12 and second entrance 13；
First entrance 12 is connected to outlet 11 by first passage (not shown), and second entrance 13 and outlet 11 pass through second channel
(not shown) connection；Two-bit triplet valve 1 further includes the valve for realizing the switching between first passage and second channel
Core 5.
Further, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2, as shown in Figure 2；Specifically, in this reality
It applies in example, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2 by pipeline.Dual-purpose fuel spraying system further includes first
Alcohol case (not shown) and petrol tank (not shown)；As shown in Figure 1, dual-purpose fuel spraying system further include respectively with vapour
The first entrance 12 of fuel tank and two-bit triplet valve 1 connects, for aspirating the gasoline in petrol tank and keeping it defeated to fuel nozzle 2
The petrol pump 3 sent.Dual-purpose fuel spraying system further includes connecting respectively with methanol tank and the second entrance of two-bit triplet valve 1 13
It connects, the methanol pump 4 for aspirating the methanol in methanol tank and conveying it to fuel nozzle 2.It is sprayed by above-mentioned dual-purpose fuel
The purpose that different fuel (i.e. gasoline and methanol) is conveyed to engine may be implemented in system.Simultaneously as above-mentioned dual-purpose fuel spray
System is penetrated when injected petrol and injection methanol using identical fuel nozzle 2, avoids newly-increased methanol spray in this way
The case where methanol nozzle in injection device cannot be mounted on best eject position.
Step S2, start petrol pump 3 and shut down methanol pump 4, spool 5 is made to block second channel and first passage is connected, from
And fuel nozzle 2 is made to export gasoline；Or start methanol pump 4 and shut down petrol pump 3, so that spool 5 is blocked first passage and is connected
Second channel, so that fuel nozzle 2 be made to export methanol.
In this step, when petrol pump 3 starts, and methanol pump 4 is shut down, the pressure P1 of first passage is greater than second channel
Pressure P2 realize the mesh for making fuel nozzle 2 export gasoline so that will lead to spool 5 is pulled to dotted line position shown in FIG. 1
's.
On the other hand, when methanol pump 4 starts, and petrol pump 3 is shut down, the pressure P2 of second channel is greater than first passage
Pressure P1 realizes the purpose for making fuel nozzle 2 export methanol so that will lead to spool 5 is pulled to solid line position shown in FIG. 1.
There are some problems in actual use in the technical solution of the present embodiment.Specifically, when the starting of petrol pump 3 and methanol pump
4 when shutting down, can by methanol pump 4 between second channel in this methanol pipeline methanol leak into methanol tank cause it is second logical
The pressure in road declines, to make spool 5 block second channel and first passage is connected；And when petrol pump 3 is shut down and methanol pump 4 opens
It, can be by petrol pump 3 to leaking gasoline to petrol tank leads to first passage in this gasoline pipeline between first passage when dynamic
Pressure decline, to make spool 5 block first passage and second channel is connected.Due in the technical scheme of this embodiment,
Leaking into fuel tank by fuel causes the process of valve core movement to take a long time.Therefore, the technical solution of the present embodiment
It is not preferred plan.
Second embodiment
Specifically, the present embodiment fuel injection control device the following steps are included:
Step S1, a kind of dual-purpose fuel spraying system is provided；
The schematic diagram of the dual-purpose fuel spraying system of second embodiment of the invention is shown referring to Fig. 3, Fig. 3.The dual-purpose combustion
Expect that spraying system includes two-bit triplet valve 1, which has outlet 11, first entrance 12 and second entrance 13；
First entrance 12 is connected to outlet 11 by first passage (not shown), and second entrance 13 and outlet 11 pass through second channel
(not shown) connection；Two-bit triplet valve 1 further includes the valve for realizing the switching between first passage and second channel
Core 5.
Further, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2, as shown in Figure 2；Specifically, in this reality
It applies in example, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2 by pipeline.Dual-purpose fuel spraying system further includes first
Alcohol case (not shown) and petrol tank (not shown)；As shown in figure 3, dual-purpose fuel spraying system further include respectively with vapour
The first entrance 12 of fuel tank and two-bit triplet valve 1 connects, for aspirating the gasoline in petrol tank and keeping it defeated to fuel nozzle 2
The petrol pump 3 sent.Dual-purpose fuel spraying system further includes connecting respectively with methanol tank and the second entrance of two-bit triplet valve 1 13
It connects, the methanol pump 4 for aspirating the methanol in methanol tank and conveying it to fuel nozzle 2.It is sprayed by above-mentioned dual-purpose fuel
The purpose that different fuel (i.e. gasoline and methanol) is conveyed to engine may be implemented in system.Simultaneously as above-mentioned dual-purpose fuel spray
System is penetrated when injected petrol and injection methanol using identical fuel nozzle 2, avoids newly-increased methanol spray in this way
The case where methanol nozzle in injection device cannot be mounted on best eject position.
Further, dual-purpose fuel spraying system further includes being separately connected methanol pump 4 and the second of two-bit triplet valve 1 to enter
The first of mouth 13 holds pressure relief valve 6；This first holds the pressure tool of relief valve 6 there are two operating position, can both realize as holding valve
Pressure function is held, and can realize decompression function as relief valve；First to hold pressure relief valve 6 real by the control module of its own for this
The switching of existing holding valve operating position and relief valve operating position.This first hold pressure relief valve 6 be the prior art, herein just not
It is described in detail.
Step S2, start petrol pump 3 and shut down methanol pump 4, while also the decompression function for pressing relief valve 6 is held in starting first,
So that spool 5 is blocked second channel and first passage is connected, so that fuel nozzle 2 be made to export gasoline；Or starts methanol pump 4 and close
Stop petrol pump 3, at the same also starting first hold pressure relief valve 6 hold pressure function, make that spool 5 blocks first passage and to be connected second logical
Road, so that fuel nozzle 2 be made to export methanol.
In this step, the first vent pressure secure threshold for holding pressure relief valve 6 is P3, i.e., holds pressure relief valve 6 first
In the case where starting its decompression function, when the loine pressure that first holds pressure relief valve 6 is higher than P3, first holds pressure relief valve 6
Pressure release will occur for pipeline.In the present embodiment, when the starting of petrol pump 3, and methanol pump 4 is shut down, and first holds pressure relief valve 6
When decompression function starts, the pressure of second channel is less than or equal to P3, and P3 is less than the pressure P1 of first passage, to will lead to
Spool 5 is pulled to dotted line position shown in Fig. 3, realizes the purpose for making fuel nozzle 2 export gasoline.
On the other hand, when the starting of methanol pump 4, and petrol pump 3 is shut down, and the first pressure function of holding of holding pressure relief valve 6 starts
When, the pressure P2 of second channel can be made to increase to pressure P1 greater than first passage by methanol pump 4, to will lead to spool 5
It is pulled to solid line position shown in Fig. 3, realizes the purpose for making fuel nozzle 2 export methanol.
The technical solution of the present embodiment is held by first presses relief valve 6 effective when the starting of petrol pump 3 methanol pump 4 is shut down
The pressure of methanol pump 4 to this methanol pipeline between second channel is rapidly released, while in turn due to shortening methanol pipe
The time of road pressure decline, to reduce the leakage rate that methanol leaks into methanol tank.
3rd embodiment
Specifically, the present embodiment fuel injection control device the following steps are included:
Step S1, a kind of dual-purpose fuel spraying system is provided；
The schematic diagram of the dual-purpose fuel spraying system of third embodiment of the invention is shown referring to Fig. 4, Fig. 4.The dual-purpose combustion
Expect that spraying system includes two-bit triplet valve 1, which has outlet 11, first entrance 12 and second entrance 13；
First entrance 12 is connected to outlet 11 by first passage (not shown), and second entrance 13 and outlet 11 pass through second channel
(not shown) connection；Two-bit triplet valve 1 further includes the valve for realizing the switching between first passage and second channel
Core 5.
Further, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2, as shown in Figure 2；Specifically, in this reality
It applies in example, the outlet 11 of two-bit triplet valve 1 is connected to fuel nozzle 2 by pipeline.Dual-purpose fuel spraying system further includes first
Alcohol case (not shown) and petrol tank (not shown)；As shown in figure 4, dual-purpose fuel spraying system further include respectively with vapour
The first entrance 12 of fuel tank and two-bit triplet valve 1 connects, for aspirating the gasoline in petrol tank and keeping it defeated to fuel nozzle 2
The petrol pump 3 sent.Dual-purpose fuel spraying system further includes connecting respectively with methanol tank and the second entrance of two-bit triplet valve 1 13
It connects, the methanol pump 4 for aspirating the methanol in methanol tank and conveying it to fuel nozzle 2.It is sprayed by above-mentioned dual-purpose fuel
The purpose that different fuel (i.e. gasoline and methanol) is conveyed to engine may be implemented in system.Simultaneously as above-mentioned dual-purpose fuel spray
System is penetrated when injected petrol and injection methanol using identical fuel nozzle 2, avoids newly-increased methanol spray in this way
The case where methanol nozzle in injection device cannot be mounted on best eject position.
Further, dual-purpose fuel spraying system further includes being separately connected methanol pump 4 and the second of two-bit triplet valve 1 to enter
The first of mouth 13 holds pressure relief valve 6；This first holds the pressure tool of relief valve 6 there are two operating position, can both realize as holding valve
Pressure function is held, and can realize decompression function as relief valve；First to hold pressure relief valve 6 real by the control module of its own for this
The switching of existing holding valve operating position and relief valve operating position.This first hold pressure relief valve 6 be the prior art, herein just not
It is described in detail.
In the present embodiment, dual-purpose fuel spraying system further includes be separately connected petrol pump 3 and two-bit triplet valve 1
The second of one entrance 12 holds pressure relief valve 7；It is identical that pressure relief valve 6 is held with first, this second is held there are two pressure relief valve 7 also has
Operating position can not only be realized as holding valve and hold pressure function, but also can realize decompression function as relief valve；This second holds pressure
Relief valve 7 realizes the switching of holding valve operating position and relief valve operating position by the control module of its own.This second is held
Pressure relief valve 7 is the prior art, is not just described in detail herein.
Step S2, start petrol pump 3 and shut down methanol pump 4, while also starting first holds the decompression function of pressure relief valve 6 simultaneously
Starting second holds pressure relief valve 7 and holds pressure function, so that spool 5 is blocked second channel and first passage is connected, so that fuel be made to spray
Mouth 2 exports gasoline；Or starting methanol pump 4 and shut down petrol pump 3, while also starting first hold pressure relief valve 6 hold pressure function
And start the second decompression function for holding pressure relief valve 7, so that spool 5 is blocked first passage and second channel is connected, to make fuel
Nozzle 2 exports methanol.
In this step, the first vent pressure secure threshold for holding pressure relief valve 6 is P3, i.e., holds pressure relief valve 6 first
In the case where starting its decompression function, when the loine pressure that first holds pressure relief valve 6 is higher than P3, first holds pressure relief valve 6
Pressure release will occur for pipeline.In the present embodiment, when the starting of petrol pump 3, and methanol pump 4 is shut down, and first holds pressure relief valve 6
When decompression function starts, the pressure of second channel is less than or equal to P3, and P3 is less than the pressure P1 of first passage, to will lead to
Spool 5 is pulled to dotted line position shown in Fig. 4, realizes the purpose for making fuel nozzle 2 export gasoline.
On the other hand, the second vent pressure secure threshold for holding pressure relief valve 7 is P4, i.e., holds pressure relief valve 7 second and open
In the case where moving its decompression function, when the loine pressure that second holds pressure relief valve 7 is higher than P4, second holds the pipe of pressure relief valve 7
Pressure release will occur for road.When methanol pump 4 starts, and petrol pump 3 is shut down, and second when holding the decompression function starting of pressure relief valve 7,
The pressure of first passage is less than or equal to P4, and P4 is less than the pressure P2 of second channel, so that will lead to spool 5 is pulled to Fig. 4
Shown in solid line position, realize make fuel nozzle 2 export methanol purpose.
The technical solution of the present embodiment in actual application, although can as in the second embodiment can be in gasoline
3 starting of pump and methanol pump 4 have effectively and rapidly released the pressure of methanol pump 4 to this methanol pipeline between second channel when shutting down
Power, and the leakage rate that methanol leaks into methanol tank is reduced, but engine can not be met well under big load condition
Job requirement.
The present invention is by constructing a kind of dual-purpose fuel spraying system, within the system, realizes first using two-bit triplet valve
The switching of pure and mild gasoline, to realize the use of methanol fuel on automobile.Due to being realized using two-bit triplet valve to methanol
Use is switched over gasoline, in this way, fuel nozzle has been shared in the dual-purpose fuel spraying system, so as to avoid methanol spray
Mouth cannot be mounted on the case where best eject position.Dual-purpose fuel spraying system of the invention and fuel injection control device design
It is ingenious, it is practical.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (2)
1. a kind of dual-purpose fuel spraying system, which is characterized in that including two-bit triplet valve (1), the two-bit triplet valve (1) tool
There are outlet (11), first entrance (12) and second entrance (13)；First entrance (12) is connected to outlet (11) by first passage,
Second entrance (13) is connected to outlet (11) by second channel；Two-bit triplet valve (1) further includes for realizing first passage
The spool (5) of switching between second channel；The outlet (11) of two-bit triplet valve (1) is connected to fuel nozzle (2)；It is dual-purpose
Fuel injection system further includes methanol tank, and petrol tank connects with the first entrance (12) of petrol tank and two-bit triplet valve (1) respectively
Connect, for aspirate the gasoline in petrol tank and make its to fuel nozzle (2) convey petrol pump (3) and respectively with methanol tank and
The second entrance (13) of two-bit triplet valve (1) connects, for aspirating the methanol in methanol tank and keeping it defeated to fuel nozzle (2)
The methanol pump (4) sent；
Dual-purpose fuel spraying system further includes the second entrance (13) for being separately connected methanol pump (4) and two-bit triplet valve (1)
First holds pressure relief valve (6)；
When petrol pump 3 starts, and methanol pump 4 is shut down, the pressure P1 of first passage is greater than the pressure P2 of second channel, thus meeting
Spool 5 is caused to be pulled to second channel, to block second channel and first passage is connected；
When methanol pump 4 starts, and petrol pump 3 is shut down, the pressure P2 of second channel is greater than the pressure P1 of first passage, thus meeting
Spool 5 is caused to be pulled to first passage, to block first passage and second channel is connected；
It further include being separately connected the first entrance (12) of petrol pump (3) and two-bit triplet valve (1) second to hold pressure relief valve
(7)；
First, which holds pressure relief valve (6) and second, holds relief valve (7) is pressed to all have and hold pressure function and decompression function；When starting petrol pump
(3) it and shuts down methanol pump (4), while also the decompression function of pressure relief valve (6) is held in starting first and pressure relief valve is held in starting second
(7) when holding pressure function, so that spool (5) is blocked second channel and first passage be connected, thus make fuel nozzle (2) export vapour
Oil；It when starting methanol pump (4) and shuts down petrol pump (3), while also holding pressure function and starting for pressure relief valve (6) is held in starting first
Second holds the decompression function of pressure relief valve (7), so that spool (5) is blocked first passage and second channel is connected, so that fuel be made to spray
Mouth (2) exports methanol.
2. a kind of fuel injection control device, which comprises the following steps:
Step S1, a kind of dual-purpose fuel spraying system as described in claim 1 is provided；
Step S2, start petrol pump (3) and shut down methanol pump (4), while also the decompression function for pressing relief valve (6) is held in starting first
And start second and hold pressure relief valve (7) and hold pressure function, so that spool (5) is blocked second channel and first passage is connected, to make
Fuel nozzle (2) exports gasoline；Or starts methanol pump (4) and shut down petrol pump (3), while also pressure relief valve is held in starting first
(6) hold pressure function and start the second decompression function for holding pressure relief valve (7), makes spool (5) block first passage and is connected the
Two channels, so that fuel nozzle (2) be made to export methanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550272.8A CN106050495B (en) | 2016-07-13 | 2016-07-13 | Dual-purpose fuel spraying system and fuel injection control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550272.8A CN106050495B (en) | 2016-07-13 | 2016-07-13 | Dual-purpose fuel spraying system and fuel injection control device |
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| CN106050495A CN106050495A (en) | 2016-10-26 |
| CN106050495B true CN106050495B (en) | 2019-12-03 |
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| CN107701346A (en) * | 2017-07-21 | 2018-02-16 | 浙江吉利控股集团有限公司 | A kind of Fuel switching valve system |
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| DE102013013231A1 (en) * | 2013-08-08 | 2015-02-12 | Man Diesel & Turbo Se | Valve arrangement for a fuel supply system and fuel supply system |
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| CN101639013A (en) * | 2008-07-31 | 2010-02-03 | 福特环球技术公司 | Fuel delivery system for a multi-fuel engine |
| CN102852683A (en) * | 2012-09-13 | 2013-01-02 | 杨林鹏 | Gasoline and alcohol dual-purpose fuel supplying device for engine |
| CN204493050U (en) * | 2015-02-28 | 2015-07-22 | 河南科纳动力设备有限公司 | A kind of automobile oil rail |
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| CN106050495A (en) | 2016-10-26 |
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Address after: Shiyan City, Hubei province 442002 City Road No. 94 Applicant after: Shiyan Kona Automotive Electronics Co., Ltd. Address before: 430065, No. 1504, block B, Dong Dong center, Wuhan economic and Technological Development Zone, Hubei Applicant before: Shiyan, Kernel Tronix Co.,Ltd |
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