CN105840371B - Combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device - Google Patents
Combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device Download PDFInfo
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- CN105840371B CN105840371B CN201610250410.0A CN201610250410A CN105840371B CN 105840371 B CN105840371 B CN 105840371B CN 201610250410 A CN201610250410 A CN 201610250410A CN 105840371 B CN105840371 B CN 105840371B
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- 239000000446 fuel Substances 0.000 title claims abstract description 124
- 239000003921 oil Substances 0.000 claims abstract description 234
- 238000002347 injection Methods 0.000 claims abstract description 109
- 239000007924 injection Substances 0.000 claims abstract description 109
- 239000000567 combustion gas Substances 0.000 claims abstract description 105
- 239000007789 gas Substances 0.000 claims abstract description 64
- 239000000295 fuel oil Substances 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 27
- 238000002485 combustion reaction Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 13
- 239000002737 fuel gas Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000002283 diesel fuel Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000012163 sequencing technique Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- F02M43/04—Injectors peculiar thereto
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
It is an object of the invention to provide Combined press EFI electromagnetic oil jet hybrid fuel jet device, including piezoelectricity Electromagnetic Control part, crosspointer valve nozzle part, injection apparatus upper end cover and injection apparatus housing.The present invention sprays two kinds of fuel of fuel oil and combustion gas using crosspointer valve nozzle, it saves space and simplifies engine structure, injection process is realized using piezoelectricity control valve, jet is realized using solenoid valve, by the working condition and job order that change piezoelectricity control valve and solenoid valve, injection apparatus can realize that only spraying fuel oil or multiple-working modes, the engines such as combustion gas, two kinds of fuel are sprayed simultaneously, two kinds of fuel sequencings spray can work under pure diesel fuel mode or oil pilot combustion gas pattern.The fuel pin lift controlled by piezoelectric element is adjustable, so as to which light fluid fuel injection rate is adjustable, meets the needs of engine mixes oil, gas under different operating modes.
Description
Technical field
The present invention relates to a kind of fuel injection devices, specifically dual fuel engine injection apparatus.
Background technology
As constantly consuming for fossil fuel is increasingly strict with engine exhaust regulation, the development of engine is faced with energy
Source crisis and the dual-pressure of problem of environmental pollution are to solve energy problem and problem of environmental pollution simultaneously using alternative fuel
Effective means.The advantages that natural gas, oil gas etc. are with its resourceful, cheap, combustion cleaning, big calorific value, becomes current
The main substitute fuel of internal combustion engine.
At present there are mainly two types of the fuel feeding methods of dual fuel engine：One kind is to be introduced into engine in gaseous fuel
It with the air of sucking is mixed before cylinder, then certain quantity of fluid fuel is directly sprayed to the near top dead center of combustion chamber, from
And pilot gas fuel, this mode easily cause combustion knock, in addition in engine low load, the combustion gas of premixing is too
It is thin to be unfavorable for burning.Another way is that combustion gas is injected directly into combustion chamber, similary to be touched using the liquid fuel of pilot quantity
Gas fuel combustion is sent out, this mode will not cause engine premature detonation, and fuel burns under diffusion combustion mode, burning
Effect is good, but its there is also it is certain the problem of：First, it is complicated in Modern Engine cylinder head, parts are more, how to arrange
Two injectors there are certain difficulty, if in addition install two injectors injection double fuels original diesel engine need to be carried out compared with
Big change increases device processing and assembling complexity.Second, solenoid valve control is by hysteresis loop and electromagnetic coil inductance
It influences, response speed is limited；Piezoelectricity control valve control accuracy is high, response quickly.Third, injection apparatus is to gas sealing requirement
Height, with the movement of needle-valve, combustion gas leaks upwards along pintle nozzle match-ing parts gap, and leakage combustion gas, which enters control chamber, causes fuel gas injection pressure
Power and injection rate reduce, and seriously affect device job stability.
The content of the invention
It is an object of the invention to provide fuel Injection Controls and fuel gas injection control to separate, and fuel injection rule flexibly may be used
The combined type piezoelectric fuel injection of change-electromagnetism jet hybrid fuel jet device.
The object of the present invention is achieved like this：
Combined type piezoelectric fuel injection of the present invention-electromagnetism jet hybrid fuel jet device, it is characterized in that：Including on injection apparatus
End cap, injection apparatus body, control valve pocket, injection apparatus inner cylinder, needle-valve pedestal, fuel oil spout part, fuel gas injection part, injection
Device upper end cover is mounted on above injection apparatus body, and needle-valve pedestal is mounted on by nozzle cage below injection apparatus body, control valve
Set and injection apparatus inner cylinder are mounted in injection apparatus body from top to bottom, and needle-valve pedestal includes fuel oil pedestal and combustion gas pedestal；
The fuel oil part includes piezoelectric element, conversion piston, conversion piston spring seat, control valve rod, control valve seat, combustion
Oil needle valve, piezoelectric element are mounted in control valve pocket, convert piston spring seat and control valve seat is arranged on injection dress from top to bottom
It puts in inner cylinder, conversion piston is located in conversion piston spring seat, and the control valve rod below conversion piston is mounted on control valve
In seat, the upper end for converting piston is stuck on elastomeric pad, and elastomeric pad is located at below piezoelectric element, is converted outside piston spring seat
Conversion piston spring is cased with, the upper end for converting piston spring is stuck on conversion piston spring seat, and lower end is withstood on control valve seat,
Control valve oil pocket is formed between control valve seat and injection apparatus body, fuel pin control is formed between fuel oil pedestal and injection apparatus body
Chamber processed, fuel pin are mounted in fuel oil pedestal, and oil holding slot, control valve oil pocket and combustion are formed between fuel pin and fuel oil pedestal
Oil needle valve control chamber is communicated by left oil duct and right oil duct, controls and valve rod low pressure oil annulus is set on valve rod, on injection apparatus body
Second low pressure drain tap and high pressure fuel entrance are set, and valve rod low pressure oil annulus is communicated with the second low pressure drain tap, control valve bullet
Spring is sleeved on the bottom of control valve rod, and the lower end of control valve spring is supported on injection apparatus body, and fuel pin spring is placed on combustion
The upper end of oil needle valve, the upper end of fuel pin spring are supported on injection apparatus body, and oil holding slot is connected high by fuel oil oil duct
Compression ignition oil-in, fuel oil oil duct are communicated with fuel pin control chamber；
The fuel gas injection part includes control gas electromagnetic valve, combustion gas needle-valve gag lever post and combustion gas needle-valve, the control
Gas electromagnetic valve processed includes sealed base, solenoid valve bullet under sealed base, valve rod on electromagnetic valve body, electromagnet, armature, valve rod
Spring, solenoid valve valve rod, electromagnetic valve body be mounted on control valve pocket in, electromagnetic valve body, valve rod upper seal support, valve rod bottom sealing socket and
Combustion gas needle-valve gag lever post arranges from top to bottom, forms electromagnetism valve chamber on electromagnetic valve body and valve rod between sealed base, close on valve rod
Groove cavity is formed under back cover seat and valve rod between sealed base, electromagnet is mounted in electromagnetism valve chamber, and armature is located under electromagnet
Side, one end of solenoid valve valve rod are stuck in by locating snap ring on armature, other end sealed base on the valve rod below armature, and
Be engaged with sealed base under valve rod, on solenoid valve valve rod respectively set with valve rod on sealed base cooperation upper sealing cone with
And the lower sealing cone coordinated with sealed base under valve rod, solenoid valve valve rod are formed with the matched part of sealed base on valve rod
Low pressure oil annulus, solenoid valve valve rod form high pressure oil annulus with the matched part of sealed base under valve rod, bottom are sealed on valve rod
The first oil duct and the 4th oil duct be set on seat, the second oil duct and the 3rd oil duct be set under valve rod on sealed base, in injection apparatus
5th oil duct of connection high pressure fuel entrance in cylinder is set, the first low pressure drain tap is set on injection apparatus body, the first oil duct connects
Three-way electromagnetic valve chamber and the first low pressure drain tap, the second oil duct connection high pressure oil annulus and the 5th oil duct, in combustion gas needle-valve gag lever post
Central oil passage, the 3rd oil duct communication groove chamber and central oil passage, the 4th oil duct connection low pressure oil annulus electromagnetism valve chamber, combustion gas are set
Needle-valve is located at below combustion gas needle-valve gag lever post, and seal band and fuel chamber are respectively formed between combustion gas needle-valve and combustion gas pedestal, close
Seal ring band connects the 5th oil duct, and fuel chamber is connected with the blast tube in control valve pocket on injection apparatus by injection apparatus inner cylinder
Fuel gas inlet on end cap, combustion gas base end set gas jet orifice.
The present invention can also include：
1st, when control gas electromagnetic valve is not powered on, solenoid valve valve rod is pressed under valve rod under the action of magnetic valve spring and seals
On pedestal, high pressure oil annulus is closed, low pressure oil annulus is opened；When controlling gas electromagnetic valve energization, solenoid valve valve rod, which lifts, to be pressed in
On valve rod on sealed base, low pressure oil annulus is closed, high pressure oil annulus is opened.
2nd, when piezoelectric element is powered, control valve rod overcomes control valve spring active force, and valve rod low pressure oil annulus is opened；Piezoelectricity
When element is not powered on, control valve rod is pressed under control valve spring effect on control valve seat, and valve rod low pressure oil annulus is closed.
Advantage of the invention is that：The present invention sprays two kinds of fuel of fuel oil and combustion gas using crosspointer valve nozzle, saves space
And engine structure is simplified, using the control fuel oil injection of piezoelectricity control valve, using solenoid valve control jet, take into account injection dress
The control accuracy and cost problem put.When only piezoelectricity control valve or solenoid valve work independently, injection apparatus only sprays one kind
Fuel, the needle-valve maximum lift of piezoelectric element control is adjustable, and the fuel injection characteristic of light fluid is adjustable；Solenoid valve and piezoelectricity control valve are same
When work, two kinds of fuel spray simultaneously；, it can be achieved that two kinds when piezoelectricity control valve and solenoid valve successively work successively
Fuel sequence-injection, injection apparatus can work under pure diesel fuel mode and oil pilot combustion gas pattern, meet engine in difference
To the requirement of light fluid and gas quantity under operating mode.
The present apparatus also has following advantageous effect simultaneously：The oily draining oil circuit of present apparatus control flows through electromagnetic valve body top, passes through
Draining Xun Huan takes away heat to reduce solenoid valve portion temperature, ensure that the reliability and stability of electromagnetic valve work.Combustion gas pin
Seal band is designed between valve and needle seating, introducing portion control oil can be effectively prevented combustion as sealing oil seal combustion gas
Gas leakage, while the Seal Oil in the control oil and seal band in control chamber, using same oil, oil pressure is equal, can effectively protect
Card control oil, Seal Oil are without static leakage.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 a are the schematic diagram of the control section of the present invention, and Fig. 2 b are the schematic diagram of combustion gas control section, and Fig. 2 c are fuel oil
The schematic diagram of control section, Fig. 2 d are the schematic diagram of solenoid valve stem position 1, and Fig. 2 e are the schematic diagram of solenoid valve stem position 2；
Fig. 3 a are crosspointer valve nozzle partial schematic diagram of the present invention, and Fig. 3 b are gas nozzle partial schematic diagram, and Fig. 3 c are fuel oil
Nozzle segment schematic diagram.
Specific embodiment
It illustrates below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1~3, combined type of the invention piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device mainly by piezoelectricity-
Electromagnetic Control part 1, crosspointer valve nozzle part 3, injection apparatus body 6 and injection apparatus upper end cover 7 form.Piezoelectricity-Electromagnetic Control
Part 1 mainly includes control gas electromagnetic valve 9, combustion gas needle-valve gag lever post 11, combustion gas needle control chamber 14, fuel pin control chamber
15th, injection apparatus inner cylinder 17, control fuel oil piezoelectricity control valve 20, control valve pocket 21 etc..Ring is designed on injection apparatus inner cylinder 17
Shape oil groove 19, oil duct 18, oil duct 10 and central airway 22.From the high voltage control oil stream that high pressure fuel entrance 5 flows into through annular oil
Slot 19 is divided into two-way, flows into oil duct 10 all the way, then flows into combustion gas needle control chamber 14 and control the high pressure oil of gas electromagnetic valve 9
Seal band 34；Another way flows into oil duct 18, then flows into fuel pin control chamber 15 and oil holding slot 65.Crosspointer valve nozzle part 3
Mainly include gas nozzle 51, fuel nozzle 52, needle-valve pedestal 53, nozzle cage 54, sealing ring 55 etc., gas nozzle 51 and fuel oil
Nozzle 52 shares a needle-valve pedestal 53.Gas nozzle 51 is by combustion gas needle valve spring 56, combustion gas needle-valve 57, fuel chamber 59, combustion gas
Spray orifice 60, seal band 62 form.57 upper end of combustion gas needle-valve is designed with annular step, below annular step, combustion gas pin
Combustion gas needle control chamber 14 is formed between valve 57 and injection apparatus body 6.Combustion gas needle-valve 57 and combustion gas needle-valve gag lever post 11 are coaxially pacified
Dress, control oil enter combustion gas needle control chamber 14 by the central oil passage 13 on combustion gas needle-valve gag lever post 11.57 He of combustion gas needle-valve
Seal band 62 is designed between needle-valve pedestal 53, passes through 58 introducing portion of the oil duct control oil on needle-valve pedestal 53 to sealing ring
Band 62 seals combustion gas.
Control gas electromagnetic valve 9 on electromagnetic valve body 23, electromagnet 24, coil 25, armature 26, valve rod mainly including sealing bottom
Sealed base 31, locating snap ring 39 etc. under seat 28, magnetic valve spring 29, solenoid valve valve rod 30, valve rod.It is designed on solenoid valve valve rod 30
There are two sealing cone, and high pressure oil annulus 34 and low pressure oil annulus 36 are designed with, when control gas electromagnetic valve 9 is not powered on, electricity
Magnet valve valve rod 30 is pressed under the action of magnetic valve spring 29 under valve rod on sealed base 31, and high pressure oil annulus 34 is closed, low pressure
Oil ring band 36 is opened；When controlling the energization of gas electromagnetic valve 9, solenoid valve valve rod 30, which lifts, to be pressed on valve rod on sealed base 28, low
Pressure oil annulus 36 is closed, high pressure oil annulus 34 is opened.
Fuel oil piezoelectricity control valve 20 is controlled mainly to include piezoelectric element 40, elastomeric pad 41, conversion piston 42, conversion piston
Spring base 43, conversion piston spring 44, control valve rod 45, control valve seat 46, control valve spring 47, sealing ring 55 etc..Control valve
Low pressure oil annulus 49 is designed on bar 45, when piezoelectricity control valve 20 is not powered on, 45 lower end of control valve rod is stuck in control valve spring 47
On, it is pressed under the effect of control valve spring 47 on control valve seat 46, closes low pressure oil annulus 49.
Combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device of the present invention is mainly by piezoelectricity-Electromagnetic Control portion
1, crosspointer valve nozzle part 3, injection apparatus body 6 and injection apparatus upper end cover 7 is divided to form.There is the first low pressure on injection apparatus body 6
Drain tap 2, the second low pressure drain tap 4, high pressure fuel entrance 5 etc., are designed with fuel gas inlet 8 on injection apparatus upper end cover 7.
Piezoelectricity-Electromagnetic Control part 1 mainly includes control gas electromagnetic valve 9, combustion gas needle-valve gag lever post 11, combustion gas needle-valve control
Chamber 14 processed, fuel pin control chamber 15, injection apparatus inner cylinder 17, control fuel oil piezoelectricity control valve 20, control valve pocket 21 etc..Control
Valve pocket 21 and injection apparatus inner cylinder 17 are mounted in injection apparatus body 6, control gas electromagnetic valve 9 and control fuel oil piezoelectricity control valve
20 are installed in control valve pocket 21 and injection apparatus inner cylinder 17.Combustion gas needle-valve gag lever post 11 is mounted on control gas electromagnetic valve 9
Lower section is designed with central oil passage 13, connection combustion gas needle control chamber 14 thereon.Gas electromagnetic valve 9 is controlled mainly to include solenoid valve
Body 23, electromagnet 24, coil 25, armature 26, on valve rod under sealed base 28, magnetic valve spring 29, solenoid valve valve rod 30, valve rod
Sealed base 31, locating snap ring 39 etc..Form electromagnetism valve chamber 38 on electromagnetic valve body 23 and valve rod between sealed base 28, it is close on valve rod
Groove cavity 35 is formed under back cover seat 28 and valve rod between sealed base 31.Electromagnet 24 is mounted on the electromagnetism valve chamber of electromagnetic valve body 23
In 38, armature 26 is located at 24 lower section of electromagnet, and one end of solenoid valve valve rod 30 is stuck in by locating snap ring 39 on armature 26, the other end
The sealed base 28 on the valve rod of 26 lower section of armature, is pressed under valve rod on sealed base 31.It is designed on solenoid valve valve rod 30
Two sealing cones, and high pressure oil annulus 34 and low pressure oil annulus 36 are designed with, when control gas electromagnetic valve 9 is not powered on, electromagnetism
Valve valve rod 30 is pressed under the action of magnetic valve spring 29 under valve rod on sealed base 31, and high pressure oil annulus 34 is closed, low pressure oil
Annulus 36 is opened, and as shown in Fig. 2 (d), combustion gas needle control chamber 14 is connected with the first low pressure drain tap 2 at this time；Control combustion gas electricity
When magnet valve 9 is powered, solenoid valve valve rod 30, which lifts, to be pressed on valve rod on sealed base 28, and low pressure oil annulus 36 is closed, high pressure oil ring
Band 34 is opened, and as shown in Fig. 2 (e), combustion gas needle control chamber 14 is connected with high pressure oil-in 6 at this time.Sealed base 28 on valve rod
On be designed with oil duct 27 and oil duct 37, oil duct 37 connects low pressure oil annulus 36 and electromagnetism valve chamber 38, and oil duct 27 connects electromagnetism valve chamber
38 and the first low pressure drain tap 2.Oil duct 32 and oil duct 33 are designed under valve rod on sealed base 31, oil duct 32 connects high pressure oil annulus
34 and high pressure oil-in 6, the central oil passage 13 of 33 communication groove chamber 35 of oil duct and combustion gas needle-valve gag lever post 11.Present apparatus draining oil
Road flows through solenoid valve, and dual-coil electromagnetic valve heat is taken away under fuel flow effect, plays the role of cooling down solenoid valve, and reduces electromagnetism
The shock and vibration that valve armature moves up and down, so as to improve the stability of dual-coil electromagnetic valve work.Control fuel oil piezoelectricity control valve 20
Mainly include piezoelectric element 40, elastomeric pad 41, conversion piston 42, conversion piston spring seat 43, conversion piston spring 44, control
Valve rod 45, control valve seat 46, control valve spring 47, sealing ring 55 etc..40 piezoelectric effect deformation length reliability of piezoelectric element is high,
Fuel gas injection rate control accuracy is high.It converts piston spring 44 to be mounted on outside conversion piston spring seat 43, the upper end is stuck in conversion
On piston spring seat 43, lower end is connected with control valve seat 46.It converts piston 42 and control valve rod 45 below is mounted on and becomes
It changes inside piston spring seat 43 and control valve seat 46,42 upper end of conversion piston is stuck on elastomeric pad 42.Control valve seat 46 and spray
Control valve oil pocket 48 is formed between injection device body 6, is connected between control valve oil pocket 48 and fuel pin control chamber 15 by oil duct.
Low pressure oil annulus 49 is designed on control valve rod 45, is connected between 49 and second low pressure drain tap 4 of low pressure oil annulus by oil duct.
47 lower end of control valve spring is supported in control valve oil pocket 48, and 45 lower end of control valve rod is stuck on control valve spring 47, in spring
It is pressed under pretightning force effect on control valve seat 46, closes low pressure oil annulus 49.Annular oil groove is designed on injection apparatus inner cylinder 17
19th, oil duct 18, oil duct 10 and central airway 22.The high voltage control oil stream flowed into from high pressure fuel entrance 5 is through 19 quilt of annular oil groove
It is divided into two-way, flows into oil duct 10 all the way, then flows into combustion gas needle control chamber 14 and control the high pressure oil sealing ring of gas electromagnetic valve 9
Band 34；Another way flows into oil duct 18, then flows into fuel pin control chamber 15 and oil holding slot 65.It mainly wraps crosspointer valve nozzle part 3
Include gas nozzle 51, fuel nozzle 52, needle-valve pedestal 53, nozzle cage 54, sealing ring 55 etc., gas nozzle 51 and fuel nozzle 52
Share a needle-valve pedestal 53.Be provided with gas inlet passage and air inlet duct among needle-valve pedestal 53, and both sides be provided with oil-feed tank and
Oil input channel.High-pressure gas is introduced fuel chamber 59 to meet injection apparatus air inlet requirement by intermediate air flue, and one side oil duct is by high compression ignition
Oil introduces oil holding slot 65 to meet injection apparatus oil inlet requirement, and fuel oil introducing seal band 62 in part is sealed combustion by opposite side oil duct
Gas.Gas nozzle 51 is made of combustion gas needle valve spring 56, combustion gas needle-valve 57, fuel chamber 59, gas jet orifice 60, seal band 62.
57 upper end of combustion gas needle-valve is designed with annular step, below annular step, shape between combustion gas needle-valve 57 and injection apparatus body 6
Into combustion gas needle control chamber 14.Combustion gas needle-valve 57 and combustion gas needle-valve gag lever post 11 are co-axially mounted, and control oil is limited by combustion gas needle-valve
Central oil passage 13 on the bar 11 of position enters combustion gas needle control chamber 14.Combustion gas needle-valve 57 is in the preload masterpiece of combustion gas needle valve spring 56
Closing gas jet orifice 60 on needle-valve pedestal 53 is pressed under.Combustion gas is passed sequentially through from the fuel gas inlet 8 on injection apparatus upper end cover 7
Central airway 22 on control valve pocket 21, injection apparatus inner cylinder 17, then fuel chamber 59 is entered by the air flue 61 on needle-valve pedestal 53.
Fuel nozzle 52 mainly includes fuel pin spring 63, fuel pin 64, oil holding slot 65, fuel oil spray orifice 66.64 quilt of fuel pin
Fuel pin spring 63, which is pressed on needle-valve pedestal 53, closes fuel oil spray orifice 66.Spiral shell is used between nozzle cage 54 and injection apparatus body 6
Line connects and is designed with sealing ring 55, prevents high temperature in cylinder, the combustion gas of high pressure enters injection apparatus crosspointer valve nozzle part.This
The gas nozzle injection combustion gas of the combined type piezoelectric fuel injection of invention-electromagnetism jet hybrid fuel jet device, is lifted in combustion gas needle-valve
During rising and taking a seat, combustion gas easily leaks upwards with the movement of valve rod, and the combustion gas of leakage enters combustion gas needle control chamber 14
When, since the compressibility of combustion gas can seriously affect its jet characteristic.In order to solve the problems, such as this, combined type of the invention mixing combustion
Material injection apparatus is provided with seal band 62 between combustion gas needle-valve 57 and needle-valve pedestal 53, close by oil duct introducing portion control oil
Combustion gas is sealed, gas leakage can be effectively prevented.In addition, controlling in combustion gas needle control chamber 14 is close in oil and seal band 62
Oil sealing uses same oil, and oil pressure is equal up and down for needle-valve, and control oil, Seal Oil can be effectively ensured without static leakage.
When engine works, control unit gathers the input signal of sensor, and drive control gas electromagnetic valve 9 and control are fired
Oil pressure electrically operated valve 20 works, so as to control 52 spray fuel of gas nozzle 51 and fuel nozzle respectively.Control gas electromagnetic valve 9
During energization, electromagnetism valve rod 20 lifts, and high pressure oil annulus 34 is opened, low pressure oil annulus 36 is closed, and high pressure oil is followed by high pressure oil
Annulus 34, groove cavity 35, the central oil passage 13 of combustion gas needle-valve gag lever post 11 flow into combustion gas needle control chamber 14, combustion gas needle-valve 57
It is lifted rapidly under high pressure oil effect in combustion gas needle control chamber 14, gas jet orifice 60 is opened, and gas nozzle 51 starts jet；Control
When gas electromagnetic valve 9 processed powers off, electromagnetism valve rod 20 is pressed under valve rod on sealed base 31 under the effect of magnetic valve spring 29, high pressure
Oil ring band 34 turns off, low pressure oil annulus 36 is opened, in combustion gas needle control chamber 14 high pressure oil by oil duct followed by groove cavity
35 and electromagnetism valve chamber 38, then the first low pressure drain tap 2 is flowed to from oil duct 27, oil pressure reduces in combustion gas needle control chamber 14, combustion gas
Needle-valve 57 is pressed under the effect of combustion gas needle valve spring 56 on needle-valve pedestal 53, closes gas jet orifice 60, and gas nozzle 51 stops spray
Gas.When controlling 20 power-off of fuel oil piezoelectricity control valve, under the action of control valve spring 47 valve rod 45 is controlled to be pressed in control valve seat 46
On, shut-off low pressure oil annulus 49, oil holding slot 65 and fuel pin control chamber 15 are interior full of high pressure fuel, the upper and lower oil pressure phase of needle-valve
Deng, fuel pin 64 under the effect of fuel pin spring 63, it is pressed on needle-valve pedestal 53 and closes fuel oil spray orifice 66, fuel nozzle 52
Not oil spout；Piezoelectricity control valve 20 be powered when, piezoelectric element 40 extends, control valve rod 45 overcome control valve spring 47 spring force and
The hydraulic coupling of fuel oil moves downward in control valve oil pocket 48, and low pressure oil annulus 49 is opened, high pressure oil in fuel pin control chamber 15
Control valve oil pocket 48, low pressure oil annulus 49 are flowed through by oil duct, then the second low pressure drain tap 4, fuel pin control are flowed to from oil duct
Oil pressure declines in chamber 15 processed, and fuel pin 64, which lifts rapidly, opens fuel oil spray orifice 66,52 commencement of fuel injection of fuel nozzle.Pass through change
Piezoelectricity control valve 20 conduction time length, can be with the deformation length of flexible modulation piezoelectric element 40, so as to change control valve 45
Lift, and since control valve 45 determines 15 built-in pressure of fuel pin control chamber and pressure release, the maximum lift of fuel pin 64
As the variation of conduction time length is adjustable, therefore, the fuel injection rate of fuel nozzle 52 is adjustable.The operating mode according to residing for engine, can
Selection controls gas electromagnetic valve 9 or control fuel oil piezoelectricity control valve 20 works independently, two solenoid valves work at the same time, two solenoid valves are first
The control models such as sequential working afterwards realize a variety of oil, gas blowout emission mode.
From the above-mentioned course of work, combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device uses crosspointer valve
Nozzle spray fuel saves space and simplifies engine structure, controlled respectively by a solenoid valve and a piezoelectricity control valve
When the fuel injection process of two nozzles, only solenoid valve or piezoelectricity control valve work, injection apparatus only sprays fuel oil or combustion
Gas, piezoelectric element control needle-valve maximum lift is adjustable, can meet system fuel injection rate variability requirements；Solenoid valve and piezoelectricity control
When valve works at the same time, device sprays combustion gas and fuel oil simultaneously；When piezoelectricity control valve and solenoid valve successively act, two kinds
Fuel sequencing sprays.Fuel injection rule is flexible, and engine can work in pure diesel oil operating mode or oil pilot combustion gas
Flexibly switch under pattern, meet oil, gas of the engine under different operating modes and mix demand.Nozzle segment uses fuel sealing combustion gas
Gas leakage can be effectively prevented, control oil and Seal Oil can effectively prevent the combustion of control chamber and seal band using same oil
Oily static leakage.Therefore, the present invention can make engine meet increasingly strict emission regulation demands, effectively improve its power
Property, economy and reliability.
Combined type piezoelectric fuel injection of the present invention-electromagnetism jet hybrid fuel jet device, including piezoelectricity-Electromagnetic Control part,
Crosspointer valve nozzle part, injection apparatus upper end cover and injection apparatus housing.Enter on injection apparatus housing there are one high pressure fuel
Mouth, two low pressure drain taps, fuel gas inlet is on injection apparatus upper end cover.Piezoelectricity-Electromagnetic Control part mainly includes control combustion
Pneumoelectric magnet valve, control fuel oil piezoelectricity control valve, control valve pocket, injection apparatus inner cylinder, combustion gas needle-valve gag lever post, combustion gas noticeable degree
Chamber, fuel pin control chamber etc..Valve pocket and injection apparatus inner tube installation are controlled in injection apparatus body, control gas electromagnetic valve and
Control fuel oil piezoelectricity control valve positions, in control valve pocket and injection apparatus inner cylinder.It mainly wraps crosspointer valve nozzle part
Include combustion gas needle-valve, combustion gas needle valve spring, fuel pin, fuel pin spring, needle-valve pedestal, sealing ring, nozzle cage etc., combustion gas pin
Valve and fuel pin share a needle-valve pedestal.
Control gas electromagnetic valve on electromagnetic valve body, electromagnet, coil, armature, solenoid valve valve rod, valve rod mainly including sealing
Sealed base, magnetic valve spring, locating snap ring etc. under pedestal, valve rod.On electromagnetic valve body and valve rod electromagnetism is formed between sealed base
Valve chamber forms groove cavity on valve rod under sealed base and valve rod between sealed base.Electromagnet is mounted in electromagnetism valve chamber, armature
Below electromagnet, its one end is stuck in by locating snap ring on armature, other end sealed base on the valve rod below armature,
It is pressed under valve rod on sealed base.Sealed base is designed with two oil ducts, an oil duct communication groove chamber and solenoid valve on valve rod
Chamber, another oil duct connection electromagnetism valve chamber and the first low pressure drain tap, draining oil circuit flow through electromagnetic valve body.Sealed base under valve rod
Two oil ducts are designed with, an oil duct connection high pressure oil annulus and combustion gas needle control chamber, another oil duct connect solenoid valve valve
Oil pocket and the second low pressure drain tap below bar.
Control the oily band of annular there are two being designed on gas electromagnetic valve valve rod, lower endless oil band logical oil channel connection high pressure oil
Entrance, upper annular oil band logical oil channel connection low pressure drain tap.
Control on gas electromagnetic valve valve rod that design is there are two sealing cone, upper sealing cone sealing low pressure oil ring band, under it is close
Seal conical surface seal high pressure oil annulus.Solenoid valve valve rod is taken a seat, and high-pressure oil passage is turned off, combustion gas needle control chamber connection low pressure oil
Road；Solenoid valve valve rod lifts, low pressure oil way shut-off, combustion gas needle control chamber connection high-pressure oil passage.
Control fuel oil piezoelectricity control valve mainly include piezoelectric element, elastomeric pad, conversion piston, conversion piston spring seat,
Convert piston spring, control valve rod, control valve seat, control valve spring, sealing ring etc..It converts piston spring and is mounted on conversion piston
Outside spring base, the upper end is stuck on conversion piston spring seat, and lower end is connected with control valve seat.Convert piston and control below
Valve rod processed is mounted on inside conversion piston spring seat and control valve seat, and conversion piston upper end is stuck on elastomeric pad.Control valve seat
Control valve oil pocket is formed between injection apparatus body, is connected between control valve oil pocket and fuel pin control chamber by oil duct.Control
Low pressure oil annulus is designed on valve rod processed, is connected between low pressure oil annulus and the second low pressure drain tap by oil duct.Control valve bullet
Spring lower end is supported in control valve oil pocket, and control valve rod lower end is stuck on control valve spring, is pressed under initial tension of spring effect
On control valve seat, low pressure oil annulus is closed.
Combustion gas needle-valve upper end is designed with annular step, and combustion is formed between needle-valve and injection apparatus body below annular step
Gas needle control chamber, combustion gas needle-valve gag lever post lower end are sleeved on inside the annular step of combustion gas needle-valve, combustion gas needle-valve gag lever post and
Combustion gas needle-valve sets central oil passage along axis, and combustion gas needle control chamber is communicated by oil duct and solenoid valve groove cavity.
Gas nozzle and fuel nozzle share a high pressure fuel entrance, are set between injection apparatus body and injection apparatus inner cylinder
In respect of annular oil groove, connection fuel oil, the oil duct of gas nozzle and high pressure oil-in.High pressure oil enters annular oil groove and is divided into two-way,
High pressure oil flows into the oil holding slot of fuel pin control chamber and fuel nozzle by oil duct all the way；Another way high pressure oil passes through oil duct stream
Enter the high pressure oil annulus of gas electromagnetic valve and the seal band of gas nozzle.
Above the fuel chamber of gas nozzle, annular sealing strip, needle-valve bottom are designed between combustion gas needle-valve and needle-valve pedestal
Annular oil groove and oil duct are provided on seat, oil is controlled to introduce annular sealing strip part.
Claims (3)
1. combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device, it is characterized in that：Including injection apparatus upper end cover, spray
Injection device body, control valve pocket, injection apparatus inner cylinder, needle-valve pedestal, fuel oil spout part, fuel gas injection part, on injection apparatus
End cap is mounted on above injection apparatus body, and needle-valve pedestal is mounted on by nozzle cage below injection apparatus body, controls valve pocket and spray
Injection device inner cylinder is mounted in injection apparatus body from top to bottom, and needle-valve pedestal includes fuel oil pedestal and combustion gas pedestal；
The fuel oil spout part includes piezoelectric element, conversion piston, conversion piston spring seat, control valve rod, control valve seat, combustion
Oil needle valve, piezoelectric element are mounted in control valve pocket, convert piston spring seat and control valve seat is arranged on injection dress from top to bottom
It puts in inner cylinder, conversion piston is located in conversion piston spring seat, and the control valve rod below conversion piston is mounted on control valve
In seat, the upper end for converting piston is stuck on elastomeric pad, and elastomeric pad is located at below piezoelectric element, is converted outside piston spring seat
Conversion piston spring is cased with, the upper end for converting piston spring is stuck on conversion piston spring seat, and lower end is withstood on control valve seat,
Control valve oil pocket is formed between control valve seat and injection apparatus body, fuel pin control is formed between fuel oil pedestal and injection apparatus body
Chamber processed, fuel pin are mounted in fuel oil pedestal, and oil holding slot, control valve oil pocket and combustion are formed between fuel pin and fuel oil pedestal
Oil needle valve control chamber is communicated by left oil duct and right oil duct, controls and valve rod low pressure oil annulus is set on valve rod, on injection apparatus body
Second low pressure drain tap and high pressure fuel entrance are set, and valve rod low pressure oil annulus is communicated with the second low pressure drain tap, control valve bullet
Spring is sleeved on the bottom of control valve rod, and the lower end of control valve spring is supported on injection apparatus body, and fuel pin spring is placed on combustion
The upper end of oil needle valve, the upper end of fuel pin spring are supported on injection apparatus body, and oil holding slot is connected high by fuel oil oil duct
Compression ignition oil-in, fuel oil oil duct are communicated with fuel pin control chamber；
The fuel gas injection part includes control gas electromagnetic valve, combustion gas needle-valve gag lever post and combustion gas needle-valve, the control combustion
Pneumoelectric magnet valve includes sealed base, magnetic valve spring, electricity under sealed base, valve rod on electromagnetic valve body, electromagnet, armature, valve rod
Magnet valve valve rod, electromagnetic valve body be mounted on control valve pocket in, on electromagnetic valve body, valve rod under sealed base, valve rod sealed base and
Combustion gas needle-valve gag lever post arranges from top to bottom, forms electromagnetism valve chamber on electromagnetic valve body and valve rod between sealed base, close on valve rod
Groove cavity is formed under back cover seat and valve rod between sealed base, electromagnet is mounted in electromagnetism valve chamber, and armature is located under electromagnet
Side, one end of solenoid valve valve rod are stuck in by locating snap ring on armature, other end sealed base on the valve rod below armature, and
Be engaged with sealed base under valve rod, on solenoid valve valve rod respectively set with valve rod on sealed base cooperation upper sealing cone with
And the lower sealing cone coordinated with sealed base under valve rod, solenoid valve valve rod are formed with the matched part of sealed base on valve rod
Low pressure oil annulus, solenoid valve valve rod form high pressure oil annulus with the matched part of sealed base under valve rod, bottom are sealed on valve rod
The first oil duct and the 4th oil duct be set on seat, the second oil duct and the 3rd oil duct be set under valve rod on sealed base, in injection apparatus
5th oil duct of connection high pressure fuel entrance in cylinder is set, the first low pressure drain tap is set on injection apparatus body, the first oil duct connects
Three-way electromagnetic valve chamber and the first low pressure drain tap, the second oil duct connection high pressure oil annulus and the 5th oil duct, in combustion gas needle-valve gag lever post
Central oil passage, the 3rd oil duct communication groove chamber and central oil passage, the 4th oil duct connection low pressure oil annulus electromagnetism valve chamber, combustion gas are set
Needle-valve is located at below combustion gas needle-valve gag lever post, and seal band and fuel chamber are respectively formed between combustion gas needle-valve and combustion gas pedestal, close
Seal ring band connects the 5th oil duct, and fuel chamber is connected with the blast tube in control valve pocket on injection apparatus by injection apparatus inner cylinder
Fuel gas inlet on end cap, combustion gas base end set gas jet orifice.
2. combined type piezoelectric fuel injection according to claim 1-electromagnetism jet hybrid fuel jet device, it is characterized in that：Control
When gas electromagnetic valve processed is not powered on, solenoid valve valve rod is pressed under the action of magnetic valve spring under valve rod on sealed base, high pressure
Oil ring band is closed, low pressure oil annulus is opened；When controlling gas electromagnetic valve energization, solenoid valve valve rod, which lifts to be pressed on valve rod, seals bottom
On seat, low pressure oil annulus is closed, high pressure oil annulus is opened.
3. combined type piezoelectric fuel injection according to claim 1 or 2-electromagnetism jet hybrid fuel jet device, it is characterized in that：
When piezoelectric element is powered, control valve rod overcomes control valve spring active force, and valve rod low pressure oil annulus is opened；Piezoelectric element is not powered on
When, control valve rod is pressed under control valve spring effect on control valve seat, and valve rod low pressure oil annulus is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610250410.0A CN105840371B (en) | 2016-04-21 | 2016-04-21 | Combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device |
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| CN201610250410.0A CN105840371B (en) | 2016-04-21 | 2016-04-21 | Combined type piezoelectric fuel injection-electromagnetism jet hybrid fuel jet device |
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| CN105840371B true CN105840371B (en) | 2018-05-18 |
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| EP1111229A2 (en) * | 1999-12-16 | 2001-06-27 | Wärtsilä NSD Oy Ab | Fuel injection valve for reciprocating internal combustion engine |
| US6270024B1 (en) * | 2000-01-12 | 2001-08-07 | Woodward Governor Company | Hydraulically actuated fuel injector cartridge and system for high pressure gaseous fuel injection |
| CN103237979A (en) * | 2010-12-02 | 2013-08-07 | 瓦锡兰芬兰有限公司 | A fuel injection unit, a method of operating such and an internal combustion engine |
| CN204704029U (en) * | 2015-06-28 | 2015-10-14 | 贵州华烽电器有限公司 | Combination electric controlled injection valve |
| CN205779397U (en) * | 2016-04-21 | 2016-12-07 | 哈尔滨工程大学 | Combined press EFI electromagnetic oil jet hybrid fuel jet device |
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2016
- 2016-04-21 CN CN201610250410.0A patent/CN105840371B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1111229A2 (en) * | 1999-12-16 | 2001-06-27 | Wärtsilä NSD Oy Ab | Fuel injection valve for reciprocating internal combustion engine |
| US6270024B1 (en) * | 2000-01-12 | 2001-08-07 | Woodward Governor Company | Hydraulically actuated fuel injector cartridge and system for high pressure gaseous fuel injection |
| CN103237979A (en) * | 2010-12-02 | 2013-08-07 | 瓦锡兰芬兰有限公司 | A fuel injection unit, a method of operating such and an internal combustion engine |
| CN204704029U (en) * | 2015-06-28 | 2015-10-14 | 贵州华烽电器有限公司 | Combination electric controlled injection valve |
| CN205779397U (en) * | 2016-04-21 | 2016-12-07 | 哈尔滨工程大学 | Combined press EFI electromagnetic oil jet hybrid fuel jet device |
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