CN107355303A - Supersonic speed fuel gas injection control valve - Google Patents
Supersonic speed fuel gas injection control valve Download PDFInfo
- Publication number
- CN107355303A CN107355303A CN201710769825.3A CN201710769825A CN107355303A CN 107355303 A CN107355303 A CN 107355303A CN 201710769825 A CN201710769825 A CN 201710769825A CN 107355303 A CN107355303 A CN 107355303A
- Authority
- CN
- China
- Prior art keywords
- level
- valve
- governor motion
- actuating motor
- valve element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 15
- 239000002737 fuel gas Substances 0.000 title abstract description 6
- 239000000446 fuel Substances 0.000 claims abstract description 39
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 230000004087 circulation Effects 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 16
- 239000003345 natural gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009123 feedback regulation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008844 regulatory mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- 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
- F02D19/02—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 gaseous fuels
- F02D19/021—Control of components of the fuel supply system
- F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
-
- 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
- F02D19/02—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 gaseous fuels
- F02D19/021—Control of components of the fuel supply system
- F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0606—Fuel temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0814—Oxygen storage amount
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The present invention relates to a kind of supersonic speed fuel gas injection control valve.The governor motion that it is included contains one-level governor motion and two level governor motion, there are one-level actuating motor and the one-level valve element being connected with one-level actuating motor in one-level governor motion, two level actuating motor in two level governor motion is connected by two level valve rod with two level valve element, have at fuel outlet and two level valve element, two level valve rod is the venturi nozzle of same axial line, there is pressure sensor at valve pocket lower exit and valve pocket upstream, there is temperature sensor in valve pocket, oxygen sensor at the exhaust pipe of engine, position sensor at venturi nozzle, each sensor is connected with main control chip respectively.The present invention runs through change circulation area and reaches change uninterrupted in a short time, can improve the responding ability of fuel injection system, avoid conventional spout intermittence and spray the air-fuel ratio pulsation phenomenon to be formed, save fuel, reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of control valve, the supersonic speed fuel gas injection control valve that is used on especially a kind of engine.
Background technology
The Global Oil energy peter out and air environmental pollution problem it is increasingly severe, natural gas is abundant with its
The reasons such as reserves, ideal physicochemical property become the good alternative fuel beyond oil.Fuel is used as using natural gas
On the engine using the time of existing decades, and the most crucial technology of natural gas engine is exactly combustion gas control technology, mesh
It is preceding to have the countries such as the U.S., Canada what forward position was compared in the research of natural gas engine control field.China is studied in this respect
Walk it is later, it is technically more dependent on foreign countries.Gas control system is big used by current domestic Ji great natural gas engines producer
Part is using external import system, with regard to single gas control system one just in occupation of the great cost ratio of natural gas engine
Example.Also there is the gas control system that Some Enterprises have developed independent brand the country at present.The basic task of gas control system
It is to provide fuel flow rate as precisely as possible according to the power demand of engine to be burnt, to provide enough power.Simultaneously
The fuel quantity that also ensure to provide is sufficiently burned to reduce the discharge of the harmful substances such as HC as far as possible.
Current fuel gas supply technology used on the market, there is adoption rate formula blender and use mechanical pressure regulator two
Kind mode.Proportional mixer technology be by the gases at high pressure being stored in gas cylinder by being depressurized to operating pressure, then by than
Example formula blender is burnt after mixing natural gas and air according to set ratio into cylinder.Using mechanical pressure regulator
Technology is gas nozzle will to be supplied after high pressure air reducing, and combustion gas penetrating admission line is mixed with air by nozzle and enters back into gas
Cylinder burns.
The fuel quantity of conventional proportional formula blender is determined that the number of fuel quantity depends on valve element according to valve element molded line
Level of processing is designed, proportional mixer is entirely a component of machine, and the actual effect that can not be supplied according to fuel is carried out
Feedback regulation, once there is leaked fuel amount and will appear from directional bias and can not be modified in valve element abrasion or pipeline.
The technical scheme of gas nozzle will be supplied after high pressure air reducing using mechanical pressure regulator, there are two big shortcomings：The
First, the fuel that nozzle sprays is pulsating, can cause the circular wave of air-fuel ratio.Secondth, nozzle uses contact seal simultaneously
And natural gas can not provide lubrication, long-term use will cause to wear, reliability it is difficult to ensure that.Nozzle can only also be opened by changing
Time or more complicated mode adjust uninterrupted.
The content of the invention
The technical problems to be solved by the invention：A kind of control gas flow of offer is convenient, fuel gas buring is abundant, can basis
The actual effect of fuel supply carries out the injection control valve of feedback regulation gas flow.
The present invention adopts the technical scheme that to solve above-mentioned technical problem：Supersonic speed injection control valve includes
Fuel inlet, fuel outlet, valve pocket and governor motion, governor motion include one-level governor motion and two level governor motion, one-level
Governor motion is located at fuel inlet, has one-level actuating motor and the one-level valve element being connected with one-level actuating motor in it, and two level is adjusted
There is two level actuating motor in section mechanism, have two level valve element and two level valve rod in valve pocket, two level valve element passes through two level valve rod and two level
Two level actuating motor in governor motion connects, and it is same to have in valve pocket at fuel outlet with two level valve element, two level valve rod
The venturi nozzle of axial line, one end of venturi nozzle is located at fuel outlet, the adjoining of the other end and two level valve element, under valve pocket
There is lower pressure sensor trip exit and valve pocket upstream, there is temperature sensor in valve pocket, oxygen sensor at the exhaust pipe of engine,
Position sensor at venturi nozzle, pressure sensor, temperature sensor, lambda sensor, position sensor respectively with master control
Chip wired connection or wireless connection.
In above-mentioned technical scheme, described one-level actuating motor and two level actuating motor are voice coil motor, and two level performs
Axis of the motor driven two level valve element along venturi nozzle, from minimum operating position in valve pocket（0mm）To maximum functional position
Put（17mm）Make to come and go linear motion.
Beneficial effects of the present invention：
1st, the motion of two level valve element of the present invention makes venturi nozzle jet exit valid circulation area continuous variable, in a short time
Run through change circulation area and reach change uninterrupted, the responding ability of fuel injection system can be improved.
2nd, the present invention is to carry out Flow-rate adjustment with the circulation area cooperatively formed of venturi nozzle and two level valve element,
The flow of combustion gas is continuity supply, avoids conventional spout intermittence and sprays the air-fuel ratio pulsation phenomenon to be formed.Venturi
Jet pipe avoids long-term switch contact with two level valve element, reduces abrasion, reliability is very high, in addition for containing impurity
Visceral-qi also can normal use.
3rd, engine gas control system is the method can be widely used in, it, which is accurately controlled effect, will make engine more supernumerary segment
Fuel saving, the discharge standard for coordinating the closed loop control function of engine controller (ECU) engine will to be made to reach higher, reduce ring
Pollute in border.
4th, the accurate pressure of the present invention and flow control function can also be used to need the Industry Control of accurate control of fluid to lead
Domain.
5th, the present invention is provided with one-level pressure regulating device and second voltage regulation mechanism, and one-level pressure regulating device ensure that gas carries out Supersonic
Speed injection, second voltage regulation mechanism obtain different effective circulations by adjusting jet pipe and two level valve element under different position cooperations
Area, so as to continuously change the size for spraying gas flow.
Brief description of the drawings
Fig. 1 is the surface structure schematic diagram of the present invention.
Fig. 2 is the cross-sectional view of the present invention.
Wherein：1st, fuel outlet；2nd, venturi nozzle；3rd, fuel inlet；4th, one-level actuating motor；5th, one-level valve element；6、
Two level valve rod；7th, two level actuating motor；8th, pressure sensor；9th, temperature sensor；10th, two level valve element.
Embodiment
As shown in Figure 1 and Figure 2, supersonic speed injection control valve includes fuel inlet 3, fuel outlet 1, valve pocket and tune
Mechanism is saved, governor motion includes one-level governor motion and two level governor motion, and one-level governor motion is located at fuel inlet 3, in it
There are one-level actuating motor 4 and the one-level valve element 5 being connected with one-level actuating motor 4, have two level actuating motor in two level governor motion
7, there are two level valve element 10 and two level valve rod 6 in valve pocket, two level valve element 10 passes through two level valve rod 6 and the two level in two level governor motion
Actuating motor 7 connects, and has and two level valve element 10, the literary mound that two level valve rod 6 is same axial line at fuel outlet 1 in valve pocket
In jet pipe 2, one end of venturi nozzle 2 is located at fuel outlet, the other end and two level valve element 10 abut, at valve pocket lower exit
There is pressure sensor 8 respectively with valve pocket upstream, there is temperature sensor 9 in valve pocket, oxygen sensor at the exhaust pipe of engine, literary mound
In position sensor at jet pipe 2, pressure sensor 8, temperature sensor 9, lambda sensor, position sensor respectively with master control core
Piece connects.One-level actuating motor 4 and two level actuating motor 7 are voice coil motor, and two level actuating motor 7 drives two level valve element 10 in valve
The minimum operating position of chamber（0mm）To maximum functional position（17mm）Make to come and go linear motion.
Main control chip can be controlled general ability domain network C AN with engine controller ECU and communicate and receive from ECU's
Demand for fuel order, main control chip in house software can calculate the valve required for reaching demand for fuel order according to fuel command
Aperture.The pressure sensor of valve pocket upstream is used to measure gas pressure, the pressure sensing in valve pocket downstream inside injection valve valve pocket
Gas pressure, the temperature sensor 9 that device is used to measure outside injection valve valve pocket are used to measure injection valve valve cavity temperature.
ECU carries out jeting effect detection according to the lambda sensor on blast pipe, and lambda sensor is according to different sprays
Penetrate effect and export different size of current signal, the current signal is convertible into concentration（Concentration range 0 ~ 1.5）.If sprayed
At most reflect the effect of overrich, ECU just sends the order of the appropriate reduction of demand for fuel of Fuelinjection nozzle, so that the combustion sprayed
Stream amount is just met for optimal fired state, and vice versa.
One-level pressure regulating device is used to adjust the pressure in nozzle valve pocket upstream, and the control of valve pocket upstream pressure is with valve pocket downstream
Outlet pressure is foundation, the device of the pressure sensing 8 measurement outlet pressure set at valve pocket lower exit, the control of valve pocket upstream pressure
Target is downstream pressure divided by supersonic flow pressure ratio.Upstream pressure intracavitary is provided with whether pressure sensor 8 measures Stress control
Reach desired value.When the flow increase of needs, backed out greatly after two level valve element 10, this will cause the pressure of valve pocket upstream pressure intracavitary
Power reduces, and in order to ensure supersonic flow, now one-level valve element 5 moves and opens valve greatly, to increase the inflow of air-flow to ensure velocity of sound
Stream.When the gas flow of needs becomes small, then opposite operation.
On the premise of the accurate pressure regulation ability of one-level pressure regulating device ensure that sonic flow, only it need to change two level valve element 10
Position can change the size of flow.A kind of variable flow is realized by the way of venturi nozzle 2 and two level valve element 10 coordinate
The nozzle of logical area.Two level valve element 10 is connected by two level valve rod 6 with the two level actuating motor 7 in Dual-stage actuator, two level
Actuating motor 7 can drive two level valve element 10 in valve pocket from minimum operating position（0mm）To maximum functional position（17mm）Make past
Linear motion is returned, its position is accurately measured by position sensor and carries out rapid closed-loop control, venturi nozzle 2 and secondary valve
Core 10 obtains different valid circulation area under coordinating in different positions, sprays the big of gas flow so as to continuously change
It is small.
The present invention is received by way of electronic communication from outer controller (ECU）Mass flow order,
And the actual mass flow equal with flow command is exported by the control ability of control valve itself.
Claims (2)
1. a kind of supersonic speed injection control valve, includes fuel inlet, fuel outlet, valve pocket and governor motion, its feature
It is：The governor motion includes one-level governor motion and two level governor motion, and one-level governor motion is located at fuel inlet, in it
There are one-level actuating motor and the one-level valve element being connected with one-level actuating motor, have two level actuating motor, valve in two level governor motion
Intracavitary has two level valve element and two level valve rod, and two level valve element is connected by the two level actuating motor in two level valve rod and two level governor motion
Connect, have and two level valve element, the venturi nozzle that two level valve rod is same axial line, venturi spray at fuel outlet in valve pocket
One end of pipe is located at fuel outlet, the other end and two level valve element abut, and at valve pocket lower exit and there is pressure valve pocket upstream respectively
Force snesor, there is temperature sensor in valve pocket, oxygen sensor at the exhaust pipe of engine, has position sensing at venturi nozzle
Device, pressure sensor, temperature sensor, lambda sensor, position sensor are connected with main control chip respectively.
2. supersonic speed injection control valve according to claim 1, it is characterised in that：Described one-level actuating motor and
Two level actuating motor is voice coil motor, and two level actuating motor drives axis of the two level valve element along venturi nozzle, in valve pocket
From minimum operating position（0mm）To maximum functional position（17mm）Make to come and go linear motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769825.3A CN107355303A (en) | 2017-08-31 | 2017-08-31 | Supersonic speed fuel gas injection control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769825.3A CN107355303A (en) | 2017-08-31 | 2017-08-31 | Supersonic speed fuel gas injection control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355303A true CN107355303A (en) | 2017-11-17 |
Family
ID=60289143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710769825.3A Pending CN107355303A (en) | 2017-08-31 | 2017-08-31 | Supersonic speed fuel gas injection control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355303A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339166A (en) * | 2021-07-25 | 2021-09-03 | 江苏铱莱德驱动系统有限公司 | Continuous flow valve for engine gas fuel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2109860A (en) * | 1981-11-20 | 1983-06-08 | Fiat Auto Spa | Fuel-air supply device for an internal combustion engine |
| JP2001193487A (en) * | 2000-01-07 | 2001-07-17 | Honda Motor Co Ltd | Control device for gas turbine engine |
| CN202300714U (en) * | 2011-11-10 | 2012-07-04 | 黄国华 | Gas mixer capable of being adapted to change of coalbed gas concentration to control air-gas ratio |
| CN105370464A (en) * | 2014-08-20 | 2016-03-02 | 上海瑾冠电气科技有限公司 | Supersonic-speed fuel injection control valve |
| CN206386484U (en) * | 2017-01-03 | 2017-08-08 | 四川燕颃科技有限公司 | A kind of electrical servo needle type regulating valve |
-
2017
- 2017-08-31 CN CN201710769825.3A patent/CN107355303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2109860A (en) * | 1981-11-20 | 1983-06-08 | Fiat Auto Spa | Fuel-air supply device for an internal combustion engine |
| JP2001193487A (en) * | 2000-01-07 | 2001-07-17 | Honda Motor Co Ltd | Control device for gas turbine engine |
| CN202300714U (en) * | 2011-11-10 | 2012-07-04 | 黄国华 | Gas mixer capable of being adapted to change of coalbed gas concentration to control air-gas ratio |
| CN105370464A (en) * | 2014-08-20 | 2016-03-02 | 上海瑾冠电气科技有限公司 | Supersonic-speed fuel injection control valve |
| CN206386484U (en) * | 2017-01-03 | 2017-08-08 | 四川燕颃科技有限公司 | A kind of electrical servo needle type regulating valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339166A (en) * | 2021-07-25 | 2021-09-03 | 江苏铱莱德驱动系统有限公司 | Continuous flow valve for engine gas fuel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210617 Address after: 611743 No.777, wangcong East Road, small and micro enterprise innovation park, north area of Chengdu modern industrial port, Pidu District, Chengdu City, Sichuan Province Applicant after: Chengdu Jinguan Electronic System Co.,Ltd. Address before: 201500 room 1060, building 5, No. 3688, Tingwei Road, Caojing Town, Jinshan District, Shanghai Applicant before: SHANGHAI JINGUAN ELECTRICAL TECHNOLOGY Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171117 |