CN105781796B - Electromagnetism and supercharging piezoelectricity combination gas gas spraying device - Google Patents
Electromagnetism and supercharging piezoelectricity combination gas gas spraying device Download PDFInfo
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- CN105781796B CN105781796B CN201610111249.9A CN201610111249A CN105781796B CN 105781796 B CN105781796 B CN 105781796B CN 201610111249 A CN201610111249 A CN 201610111249A CN 105781796 B CN105781796 B CN 105781796B
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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
- 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
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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
- 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
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The present invention is to provide a kind of electromagnetism and supercharging piezoelectricity combination gas gas spraying device.Combined by a pressurizer of gas, an electromagnetic control apparatus, a piezoelectricity control device and two gas nozzles, the combustion gas of supercharging device supercharging is passed through in the gas nozzle of piezoelectricity control device control, non pressurized combustion gas is passed through in the gas nozzle of electromagnetic control apparatus control, the gaseous-pressure sprayed into combustion chamber can be changed in engine single cycle, so as to change the mixability of combustion gas and air, fuel gas buring characteristic flexibility and changeability, meet injection pressure variability requirement in engine single cycle；Boost electromagnetic valve controls the supercharging of combustion gas, can quickly realize the switching of combustion gas boosting jet and combustion gas without boosting jet；Magnetic valve and piezoelectric element control the injection of two-way combustion gas respectively, can quickly realize the switching of single gas nozzle injection and double gas nozzle injections；With fuel sealing combustion gas, be advantageous to avoid combustion gas from leaking by pintle nozzle match-ing parts, improve the dynamic property and fuel economy of engine.
Description
Technical field
The present invention relates to a kind of dual fuel engine fuel gas ejecting device, specifically a kind of combined electromagnetic-
It is pressurized piezoelectricity fuel gas ejecting device.
Background technology
Development engine replacing fuel is that solve energy shortage and problem of environmental pollution effectively one of means.Gas
The advantages that fuel is because of aboundresources, cheap and combustion cleaning is as the engine replacing fuel with good development prospect.
Existing in-cylinder direct-jet fuel gas ejecting device, to authorized pressure, passes through magnetic valve control more using high-pressure pump compressed gas
Fuel gas injection is realized in the motion of needle-valve processed, and existing weak point has：High-pressure pump structure is complicated, from pump end to fuel gas ejecting device
Transmission pipeline length, pressurized combustion gases pressure oscillation is big；Pressurized combustion gases injection apparatus can meet combustion gas single cycle inner high voltage or low pressure
Eject request, but injection pressure variability requirement in engine single cycle can not be realized；Single injector fuel gas ejecting device matching hair
Motivation power limited, it is impossible to while meet the fuel gas injection amount demand under the requirement of engine gas injection control and different capacity；
And although two fuel gas ejecting devices can meet engine gas eject request, size and installation site are limited by cylinder cap；Combustion
Gas spraying device opens needle-valve injection combustion gas using pressure gas top, and because the compressibility of gas is strong, fuel gas injection is unstable, unfavorable
In the accurate control for realizing needle valve movement；In addition, with the motion combustion gas of valve element by the gap between valve element and valve body to electricity
The leakage aggravation of magnet valve end, causes fuel gas injection pressure and injection rate to reduce, influences engine power performance and fuel economy.
The content of the invention
, can be preferably the invention reside in providing one kind to meet to spray pressure variability requirement in engine single cycle
Solve the problems, such as that combustion gas is leaked by pintle nozzle match-ing parts, the dynamic property of engine and the electromagnetism of fuel economy can be effectively improved
With being pressurized piezoelectricity combination gas gas spraying device.
The object of the present invention is achieved like this：
Including supercharging device shell, control device shell, injection apparatus shell, combustion gas pressurization control magnetic valve, electromagnetism control
Valve, piezoelectricity control valve and gas nozzle processed, the gas nozzle include two needle-valves, needle-valve base and needle-valve body fastening nut,
Two needle-valves are arranged in the needle chamber of injection apparatus outer casing bottom by shared needle-valve base and needle-valve body fastening nut, electricity
Magnetic control valve and piezoelectricity control valve are arranged in control device shell, and control device shell is arranged in injection apparatus shell and electricity
Magnetic control valve and piezoelectricity control valve a corresponding needle-valve respectively, set control between solenoid electric valve and piezoelectricity control valve and needle-valve
Oil circuit, combustion gas pressurization control magnetic valve are arranged in supercharging device shell, and supercharging device shell is arranged on injection apparatus shell,
Pressure tank is formed between two needle-valves and needle-valve base, two pressure tanks are respectively communicated with inlet channel, and an inlet channel is direct
Connected with air inlet, another inlet channel connects air inlet again through combustion gas pressurization control magnetic valve.
The present invention can also include：
1st, the control oil circuit between solenoid electric valve and piezoelectricity control valve and needle-valve specifically includes：Control valve return spring holder
First draining oil duct 52 and the second draining oil duct 43 are set on I50, and control valve seat I45 sets oil-feed oil duct I48, central oil passage to enter
Hydraulic fluid port I46 and control valve draining oil duct 47, control valve drain tap 8, control valve drain tap 8 and control are set on injection apparatus shell 22
Valve draining oil duct 47 processed connects, and formation control valve oil pocket I44, spacing between control valve seat I45 and control valve return spring holder I50
Bar I12 and needle-valve I68 are co-axially mounted, and are set central oil passage I13 along axis, are formed between needle-valve I68 and injection apparatus shell 22
Needle chamber I65, forms control valve oil pocket II60 between control valve return spring holder II61 and control valve seat II63, control valve resets
Central oil passage oil inlet II58, gag lever post II17 and needle-valve II71 is set to be co-axially mounted on spring base II61, in being set along axis
Heart oil duct II16, needle chamber II75 is formed between needle-valve II71 and injection apparatus shell 22.
The 2nd, oil inlet A66 and oil inlet B73 is set on injection apparatus shell 22, set between needle-valve base 74 and needle-valve I68
Annular sealing strip I67 is put, is connected with oil inlet A66, annular sealing strip II72 is set between needle-valve base 74 and needle-valve II71, with
Oil inlet B73 is connected.
3rd, the structure of combustion gas pressurization control magnetic valve is：Boost electromagnetic valve coil 28 is arranged in electromagnetic valve body, supercharging rank
Iron 40 is located at the lower section of boost electromagnetic valve coil 28, and the upper end of pressurization control valve rod 29 is stuck on supercharging armature 40 by locating snap ring, supercharging
Control valve rod 29 lower end is pressed on pressurization control valve base 26 through pressurization control valve rod return spring holder 30, the right-hand member of check valve 33
It is connected by screw and is fixed on check valve little spring seat, the left end of check valve back-moving spring 32 is stuck in by check valve big spring seat
On one-way valve seat, the left end of check valve 33 is pressed in one-way valve seat by the right-hand member of check valve back-moving spring 32 by check valve little spring seat
On, supercharger control valve oil pocket 2 is formed between pressurization control valve rod return spring holder 30 and pressurization control valve base 26, pressurised oil is entered
Oil circuit 3 is connected by the lower sealing cone of pressurization control valve rod 29 with supercharger control valve oil pocket 2, and supercharger control valve oil pocket 2 is logical
The upper sealing cone for crossing pressurization control valve rod 29 connects with pressurised oil draining oil circuit 27, and pressurization control valve base 26 is provided with supercharging control
Valve drain tap 37 processed, the lower end of pressurization control valve base 26 installation charged piston 34, pressurization control valve base 26 and charged piston 34
Between form charged piston epicoele 36, charged piston epicoele 36 connects with supercharger control valve oil pocket 2, and supercharging device shell 38 is with increasing
Charged piston back-moving spring chamber 31 is set between pressure piston 34 outer end, and charged piston back-moving spring 35 resets installed in charged piston
Inside spring cavity 31, charged piston cavity of resorption 25 is set, under charged piston between supercharging device shell 38 and the lower end of charged piston 34
Chamber 25 connects air inlet 4 and pressurized combustion gases outlet 24, and pressurized combustion gases outlet 24 connects with inlet channel A19.
The invention provides a kind of combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device, by a pressurizer of gas, an electricity
Magnetic controller, a piezoelectricity control device and the isostructural gas nozzle combination of two-phase are in a fuel gas ejecting device, supercharging
The combustion gas of device supercharging is passed through in the gas nozzle of piezoelectricity control device control, and non pressurized combustion gas is passed through electromagnetic control apparatus control
Gas nozzle in, injection pressure variability requirement in engine single cycle can be met, meanwhile, using fuel sealing combustion gas,
Can preferably solve the problems, such as that combustion gas is leaked by pintle nozzle match-ing parts, the dynamic property and fuel warp of engine can be effectively improved
Ji property.
Combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device of the present invention mainly includes combustion gas compression portion 1, Electromagnetic Control
Part 6, piezoelectricity control section 21, double gas nozzle parts 15, supercharging device shell 38, control device shell 5, outside injection apparatus
Shell 22, inlet channel I9, inlet channel A19, pressurised oil oil-feed oil circuit 3, pressurised oil draining oil circuit 27, oil-feed oil duct 10.Combustion gas
Compression portion 1 is lived by charged piston 34, charged piston epicoele 36, charged piston cavity of resorption 25, charged piston back-moving spring 35, supercharging
Fill in back-moving spring chamber 31, boost electromagnetic valve coil 28, supercharging armature 40, pressurization control valve rod 29, supercharger control valve back-moving spring
39th, air inlet 4, pressurized combustion gases outlet 24, supercharger control valve oil pocket 2, pressurization control valve base 26, pressurization control valve rod reset bullet
Spring abutment 30, supercharger control valve drain tap 37, check valve 33, check valve back-moving spring 32 etc. form.Electromagnetic Control part 6 is by electromagnetism
Valve coil 41, armature 53, control valve I42, control valve seat I45, control valve back-moving spring I51, control valve return spring holder I50,
Control valve oil pocket I44, the first oil inlet 49, oil-feed oil duct I48, central oil passage oil inlet I46, the first draining oil duct 52, second
Draining oil duct 43, drain tap I7, control valve draining oil duct 47, control valve drain tap 8 etc. form.Piezoelectricity control section 21 is by piezoelectricity
Element 23, metallic gasket 54, control valve II62, control valve seat II63, control valve back-moving spring II57, control valve return spring holder
II61, control valve oil pocket II60, the second oil inlet 56, oil-feed oil duct II55, central oil passage oil inlet II58, draining oil duct
II59, drain tap II20 etc. are formed.Double gas nozzle parts 15 are by needle-valve base 74, needle-valve body fastening nut 14 and structure
Identical gas nozzle part I64 and gas nozzle part II76 composition, gas nozzle part I64 mainly include oil inlet A66,
Needle-valve I68, needle-valve back-moving spring I11, gag lever post I12, central oil passage I13, needle chamber I65, pressure tank I69, band I67,
Gas nozzle part II76 mainly includes oil inlet B73, needle-valve II71, needle-valve back-moving spring II18, gag lever post II17, center oil
Road II16, needle chamber II75, pressure tank II70, band II72.Boost electromagnetic valve coil 28 is arranged in electromagnetic valve body, supercharging
Armature 40 is located at the lower section of boost electromagnetic valve coil 28, and the upper end of pressurization control valve rod 29 is stuck on supercharging armature 40 by locating snap ring, increased
The lower end of pressure control valve bar 29 is pressed on pressurization control valve base 26 through pressurization control valve rod return spring holder 30, and check valve 33 is right
End, which is connected by screw, to be fixed on check valve little spring seat, and the left end of check valve back-moving spring 32 passes through check valve big spring seat card
On one-way valve seat, the left end of check valve 33 is pressed in one-way valve seat by the right-hand member of check valve back-moving spring 32 by check valve little spring seat
On, electromagnetic valve coil 41 and armature 53 are arranged on inside control device shell 5, and control valve I42 upper ends are stuck in armature by locating snap ring
On 53, control valve I42 lower ends are pressed on control valve seat I45, and control valve back-moving spring I51 tops are pressed in control valve return spring holder
On I50, control valve back-moving spring I51 bottoms are stuck on control valve I42, and piezoelectric element 23 is arranged on inside control device shell 5,
Control valve II64 is set inside control valve seat II63, and control valve seat II63 outer ends set sealing ring, and control valve II62 upper ends are stuck in
On metallic gasket 54, control valve II62 lower ends are pressed on control valve back-moving spring II57, control valve back-moving spring II57 lower ends branch
Support is on control valve return spring holder II61, and gag lever post I12, gag lever post II17 are stuck on injection apparatus shell 22, gag lever post I12
Lower end is enclosed on inside needle-valve I68, and gag lever post II17 lower ends are enclosed on inside needle-valve II71, and gag lever post I12 outer ends set needle-valve to reset
Spring I11, needle-valve back-moving spring I11 are supported on needle-valve I68, and gag lever post II17 outer ends set needle-valve back-moving spring II1, needle-valve
Back-moving spring II18 is supported on needle-valve II71, using positioning finger setting, pin between needle-valve base 74 and injection apparatus shell 22
Valve I68, needle-valve II71 are arranged on inside needle-valve base 74, and needle-valve I68, needle-valve II71 are fixed on by needle-valve body fastening nut 14
On injection apparatus shell 22, form pressure tank I69 between needle-valve I68 and needle-valve base 74, needle-valve II71 and needle-valve base 74 it
Between form pressure tank II70.Supercharger control valve is formed between pressurization control valve rod return spring holder 30 and pressurization control valve base 26
Oil pocket 2, pressurised oil oil-feed oil circuit 3 are connected by the lower sealing cone of pressurization control valve rod 29 with supercharger control valve oil pocket 2, supercharging
Control valve oil pocket 2 is connected by the upper sealing cone of pressurization control valve rod 29 with pressurised oil draining oil circuit 27, supercharger control valve bottom
Seat 26 is provided with supercharger control valve drain tap 37, the lower end of pressurization control valve base 26 installation charged piston 34, pressurization control valve base
Charged piston epicoele 36 is formed between 26 and charged piston 34, charged piston epicoele 36 connects with supercharger control valve oil pocket 2, supercharging
Charged piston back-moving spring chamber 31 is set between crust of the device 38 and the outer end of charged piston 34, and charged piston back-moving spring 35 is installed
Inside charged piston back-moving spring chamber 31, charged piston cavity of resorption is set between supercharging device shell 38 and the lower end of charged piston 34
25, charged piston cavity of resorption 25 connects air inlet 4 and pressurized combustion gases outlet 24, and pressurized combustion gases outlet 24 connects with inlet channel A19.
First draining oil duct 52 and the second draining oil duct 43 are set on control valve return spring holder I50, and control valve seat I45 sets oil-feed oil
Road I48, central oil passage oil inlet I46 and control valve draining oil duct 47, control valve drain tap 8 is set on injection apparatus shell 22,
Control valve drain tap 8 connects with control valve draining oil duct 47, is formed between control valve seat I45 and control valve return spring holder I50
Control valve oil pocket I44, gag lever post I12 and needle-valve I68 are co-axially mounted, and central oil passage I13, needle-valve I68 and injection are set along axis
Needle chamber I65 is formed between crust of the device 22, control valve is formed between control valve return spring holder II61 and control valve seat II63
Set central oil passage oil inlet II58, gag lever post II17 and needle-valve II71 same on oil pocket II60, control valve return spring holder II61
Axle is installed, and sets central oil passage II16 along axis, needle chamber II75 is formed between needle-valve II71 and injection apparatus shell 22.Injection
Oil inlet A66 and oil inlet B73 is set on crust of the device 22, annular sealing strip is set between needle-valve base 74 and needle-valve I68
I67, connected with oil inlet A66, annular sealing strip II72 is set between needle-valve base 74 and needle-valve II71, connected with oil inlet B73
It is logical.Fuel gas ejecting device connects with two-way air inlet gas circuit, enters fuel gas ejecting device by air inlet 4 all the way, all the way by entering
Gas passage I9 enters fuel gas ejecting device.Air inlet 4 is arranged on supercharging device shell 38, and air inlet 4 is by under charged piston
Chamber 25, pressurized combustion gases outlet 24 connect with inlet channel A19, inlet channel A19 by supercharging device shell 38, control device outside
Shell 5, injection apparatus shell 22 connect with pressure tank II70.Inlet channel I9 is arranged on injection apparatus shell 22, inlet channel
I9 connects with pressure tank I69.Oil-feed oil duct 10 along control device shell 5 radially into fuel gas ejecting device, in control device
It is divided into two-way tributary and all the way main flow on shell 5, tributary is entered in Electromagnetic Control part 6 by the first oil inlet 49 all the way；One
Road tributary is entered in piezoelectricity control section 21 by the second oil inlet 56；The main flow of oil-feed oil duct 10 enters injection apparatus shell 22,
And it is divided into two-way on injection apparatus shell 22, entered all the way by oil inlet A66 in band I67；Pass through oil inlet all the way
B73 enters in band II72.First oil inlet 49 connects with oil-feed oil duct I48, and oil-feed oil duct I48 passes through control valve I42's
Lower sealing cone connects with control valve oil pocket I44, and control valve oil pocket I44 passes through central oil passage oil inlet I46, central oil passage I13
Being connected with needle chamber I65, control valve oil pocket I44 is connected by control valve I42 upper sealing cone with the first draining oil duct 52, the
One draining oil duct 52 is connected by magnetic valve end with the second draining oil duct 43, and the second draining oil duct 43 connects with drain tap I7.The
Two oil inlets 56 connect with oil-feed oil duct II55, the upper sealing cone and control valve oil that oil-feed oil duct II55 passes through control valve II62
Chamber II60 is connected, and control valve oil pocket II60 is connected by central oil passage oil inlet II58, central oil passage II16 with needle chamber II75,
Control valve oil pocket II60 is connected by control valve II62 lower sealing cone with draining oil duct II59, draining oil duct II59 and draining
Mouth II20 connections.
The advantage of the invention is that：
By a pressurizer of gas, an electromagnetic control apparatus, a piezoelectricity control device and the isostructural gas nozzle of two-phase
Combination simplifies structure, reduces installing space in a fuel gas ejecting device；Charged piston is controlled using boost electromagnetic valve
Motion realize the supercharging of combustion gas, combustion gas boost pressure and combustion gas charging efficiency are high, can quickly realize combustion gas boosting jet and
Switching of the combustion gas without boosting jet, meet that dual fuel engine different capacity is required the difference of fuel gas injection pressure, work as supercharging
When device and piezoelectricity control device are successively all powered, pressurized combustion gases injection, when supercharging device no power, piezoelectricity control device are powered
Or during electromagnetic control apparatus, non pressurized fuel gas injection；The motion for controlling two needle-valves respectively using magnetic valve and piezoelectric element is realized
The injection of two-way combustion gas, fuel gas injection flexibility is high, can quickly realize single gas nozzle injection and double gas nozzle injections
Switching, meets different demands of the dual fuel engine different capacity to fuel gas injection amount, when electromagnetic control apparatus or piezoelectricity control
Device can realize that small-power exports when being powered, can be realized when electromagnetic control apparatus and piezoelectricity control device are powered simultaneously high-power
Output；When two control devices all work, fuel gas injection rule variable requirements can be realized, such as first electromagnetism by adjusting the moment that is powered
Piezoelectricity control device or the energization of first piezoelectricity control device can be realized when electromagnetic control apparatus is powered again and " first delayed again for control device energization
Order fuel gas injection rule afterwards suddenly "；The combustion gas of supercharging device supercharging is passed through in the gas nozzle that piezoelectricity control device is controlled,
Non pressurized combustion gas is passed through in the gas nozzle of electromagnetic control apparatus control, it is possible to achieve injection pressure is variable in engine single cycle
Property require, such as first boost electromagnetic valve coil electricity, electromagnetic valve coil is initially powered up again, last piezoelectric element is initially powered up, or
First boost electromagnetic valve coil electricity, again piezoelectric element are initially powered up, last electromagnetic valve coil is initially powered up, and can be followed in engine list
Change the gaseous-pressure sprayed into combustion chamber in ring, so as to change the mixability of combustion gas and air, fuel gas buring characteristic is flexible
It is variable.Using solenoid valve control needle valve movement, fuel gas injection amount and fuel gas injection timing are controllable；Needle-valve is controlled using piezoelectric element
Motion, needle-valve maximum lift is adjustable, and fuel gas injection amount and fuel gas injection rate control accuracy are high；Supercharging combustion is controlled using piezoelectric element
The injection of gas, fast response time, pressurized combustion gases jet law are variable；Needle-valve cavity pressure is controlled using fuel oil, control accuracy is high,
System jetting stability requirement can preferably be met；Using fuel sealing combustion gas, be advantageous to avoid combustion gas from passing through pintle nozzle match-ing parts
Leakage, improves fuel gas injection pressure and injection rate, improves the dynamic property and fuel economy of engine；Needle chamber and pin
Fuel oil at valve coupling is same oil, and oil pressure is equal, avoids the fuel oil static leakage at pintle nozzle match-ing parts.
Brief description of the drawings
Fig. 1 is the overall structure diagram of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device；
Fig. 2 is the combustion gas compression portion structural representation of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device；
Fig. 3 is the Electromagnetic Control part-structure schematic diagram of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device；
Fig. 4 is that the piezoelectricity of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device controls part-structure schematic diagram；
Fig. 5 is double gas nozzle part-structure schematic diagrams of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described further：
With reference to Fig. 1-5, combined electromagnetic of the invention-supercharging piezoelectricity fuel gas ejecting device mainly includes combustion gas compression portion
1st, Electromagnetic Control part 6, piezoelectricity control section 21, double gas nozzle parts 15, supercharging device shell 38, control device shell 5,
Injection apparatus shell 22, inlet channel I9, inlet channel A19, pressurised oil oil-feed oil circuit 3, pressurised oil draining oil circuit 27, oil-feed oil
Road 10.
Combustion gas compression portion 1 is by multiple by charged piston 34, charged piston epicoele 36, charged piston cavity of resorption 25, charged piston
Position spring 35, charged piston back-moving spring chamber 31, boost electromagnetic valve coil 28, supercharging armature 40, pressurization control valve rod 29, supercharging
Control valve back-moving spring 39, air inlet 4, pressurized combustion gases outlet 24, supercharger control valve oil pocket 2, pressurization control valve base 26, supercharging
Control the composition such as valve rod return spring holder 30, supercharger control valve drain tap 37, check valve 33, check valve back-moving spring 32.Supercharging
Piston 34 is designed to that apex area is big, bottom area is small, realizes that combustion gas is pressurized using both ends difference in areas, pressurization control valve rod 29
Sealing cone and lower sealing cone in setting, realize the switching between pressurised oil inlet and outlet of fuel channel in fuel gas ejecting device, supercharging control
The lower end of valve rod 29 processed sets taper surface, the supercharging oil liquid pressure suffered by the lower sealing surface of balance pressurization control valve rod 29, pressurization control
Valve base 26 is provided with supercharger control valve drain tap 37, vents the clearance flow between pressurization control valve rod 29 and pressurization control valve base 26
To the pressurised oil of the bottom of pressurization control valve rod 29, avoid pressurised oil from producing upward active force to pressurization control valve rod 29 and reduce and increase
The control accuracy of pressure control valve bar 29.
Electromagnetic Control part 6 resets bullet by electromagnetic valve coil 41, armature 53, control valve I42, control valve seat I45, control valve
Spring I51, control valve return spring holder I50, control valve oil pocket I44, the first oil inlet 49, oil-feed oil duct I48, central oil passage oil-feed
Mouth I46, the first draining oil duct 52, the second draining oil duct 43, drain tap I7, control valve draining oil duct 47, control valve drain tap 8 etc.
Composition.Sealing cone and lower sealing cone in control valve I42 settings, are realized in control valve oil pocket I44 between fuel oil inlet and outlet of fuel channel
Switching, the first draining oil duct 52 connected by magnetic valve end with the second draining oil duct 43, and magnetic valve end is full of fuel oil, can reduce
The shock and vibration that magnetic valve armature moves up and down, so as to improve the stability of dual-coil electromagnetic valve work, and flowed through during fuel oil draining
Magnetic valve end, dual-coil electromagnetic valve heat is taken away, play a part of cooling down magnetic valve, control valve draining oil duct 47 and control valve drain tap
8 connections, vent the fuel oil that control valve I42 bottoms are flowed to from control valve I42 and control valve seat I45 gap.
Piezoelectricity control section 21 is by by piezoelectric element 23, metallic gasket 54, control valve II62, control valve seat II63, control
Valve back-moving spring II57, control valve return spring holder II61, control valve oil pocket II60, the second oil inlet 56, oil-feed oil duct II55,
Central oil passage oil inlet II58, draining oil duct II59, drain tap II20 etc. are formed.Sealing cone is with in control valve II62 settings
Sealing cone, the switching between fuel oil inlet and outlet of fuel channel in control valve oil pocket II60 is realized, is set on control valve return spring holder II61
Draining oil duct II59 is put, connects control valve oil pocket II60 and drain tap II20, metallic gasket 54 plays a part of isolation, avoids pressing
Electric device 23 touches the fuel oil leaked upwards from control valve seat II63.
Double gas nozzle parts 15 are by needle-valve base 74, needle-valve body fastening nut 14 and structure identical gas nozzle
Part I64 and gas nozzle part II76 compositions, it is multiple that gas nozzle part I64 mainly includes oil inlet A66, needle-valve I68, needle-valve
Position spring I11, gag lever post I12, central oil passage I13, needle chamber I65, pressure tank I69, band I67, gas nozzle part
II76 mainly includes oil inlet B73, needle-valve II71, needle-valve back-moving spring II18, gag lever post II17, central oil passage II16, needle-valve
Chamber II75, pressure tank II70, band II72.Needle-valve back-moving spring I11, needle-valve back-moving spring II18 are respectively by needle-valve I68, pin
Valve II71 presses to needle-valve base 74, and the fuel oil in needle chamber I65, needle chamber II75 plays control needle-valve I68, needle-valve II71 motions
Effect, gag lever post I12, gag lever post II17 play a part of limiting needle-valve I68, needle-valve II71 lifts, band I67, sealing
Play a part of combustion gas of the sealing by pintle nozzle match-ing parts leakage with II72, pressure tank I69 and pressure tank II70 play stable air pressure
Effect, so as to reduce influence of the air pressure fluctuation to fuel gas injection, between needle-valve body fastening nut 14 and injection apparatus shell 22
Using being threadedly coupled and setting sealing ring, the gas in combustion chamber is avoided to enter inside fuel gas ejecting device.
When dual fuel engine works, two-way combustion gas enters fuel gas ejecting device, and combustion gas all the way enters from air inlet 4 and is pressurized
Piston cavity of resorption 25 is pressurized or is not pressurized, and is left after charged piston cavity of resorption 25 by pressurized combustion gases outlet 24, inlet channel
A19 enters in pressure tank II70, and combustion gas all the way is directly entered in pressure tank I69 by inlet channel I9.Fuel oil passes through oil-feed oil
Road 10, radially into fuel gas ejecting device, three tunnels is divided on control device shell 5, are passed through all the way along control device shell 5
First oil inlet 49 enters in Electromagnetic Control part 6；Entered all the way by the second oil inlet 56 in piezoelectricity control section 21；All the way
Enter injection apparatus shell 22 along oil-feed oil duct 10, and be divided into two-way on injection apparatus shell 22, pass through oil inlet A66 all the way
Into in band I67, entered all the way by oil inlet B73 in band II72.
When boost electromagnetic valve coil 28 is powered, supercharging armature 40 drives pressurization control valve rod 29 to overcome supercharger control valve to reset
The spring force of spring 39 moves upwards, and the upper sealing cone of pressurization control valve rod 29 is pressed on pressurization control valve rod return spring holder
On 30 upper sealing cone, supercharger control valve oil pocket 2 no longer connects with pressurised oil draining oil circuit 27, supercharger control valve oil pocket 2 with
Pressurised oil oil-feed oil circuit 3 is connected, and pressurised oil is entered on charged piston from pressurised oil oil-feed oil circuit 3 by supercharger control valve oil pocket 2
In chamber 36, pressurised oil acts on the top of charged piston 34, overcomes the spring force of charged piston back-moving spring 35 by charged piston 34
Push, the increase of the volume of charged piston epicoele 36, the volume of charged piston cavity of resorption 25 reduces, into the combustion gas quilt of charged piston cavity of resorption 25
Compression, gaseous-pressure increase.When the conjunction of the gaseous-pressure in charged piston cavity of resorption 25 and the spring force of check valve back-moving spring 32
When power is more than the gaseous-pressure in air inlet 4, check valve 33 moves right, and charged piston cavity of resorption 25 no longer connects with air inlet 4,
Avoid pressurized combustion gases to leak from air inlet 4, ensure that combustion gas charging efficiency.When boost electromagnetic valve coil 28 powers off, supercharging control
Valve rod 29 processed moves downward in the presence of supercharger control valve back-moving spring 39, and the lower sealing cone of pressurization control valve rod 29 presses
On the lower sealing cone of pressurization control valve base 26, pressurised oil oil-feed oil circuit 3 no longer connects with supercharger control valve oil pocket 2, increases
Pressure control valve oil pocket 2 connects with pressurised oil draining oil circuit 27, and pressurised oil passes through supercharger control valve oil pocket 2 from charged piston epicoele 36
Leak into pressurised oil draining oil circuit 27, pressure reduces in charged piston epicoele 36, and charged piston back-moving spring 35 is by charged piston
34 jack up, and are less than air inlet with joint efforts when the spring force of the gaseous-pressure in charged piston cavity of resorption 25 and check valve back-moving spring 32
During gaseous-pressure in 4, check valve 33 is connected to left movement, charged piston cavity of resorption 25 with air inlet 4, and combustion gas is entered from air inlet 4
Enter fuel gas ejecting device.
When electromagnetic valve coil 41 is powered, armature 53 drive control valve I42 overcome control valve back-moving spring I51 spring force to
Upper motion, control valve I42 upper sealing cone are pressed on control valve return spring holder I50 upper sealing cone, control valve oil
Chamber I44 no longer connects with the first draining oil duct 52, and control valve oil pocket I44 connects with oil-feed oil duct I48, and fuel oil is from the first oil inlet
49 are entered in needle chamber I65 by oil-feed oil duct I48, control valve oil pocket I44, central oil passage oil inlet I46, central oil passage I13,
Fuel oil is acted on needle-valve I68 end faces, overcomes needle-valve back-moving spring I11 spring force to jack up needle-valve I68, combustion gas starts to spray
Penetrate.When electromagnetic valve coil 41 powers off, control valve I42 lower sealing cone is pressed on control valve seat by control valve back-moving spring I51
On I45 lower sealing cone, control valve oil pocket I44 no longer connects with oil-feed oil duct I48, control valve oil pocket I44 and the first draining
Oil duct 52 is connected, and the fuel oil in needle chamber I65 is let out by central oil passage I13, central oil passage I13, control valve oil pocket I44, first
Oil duct 52, the second draining oil duct 43 quickly leak into drain tap I7, and pressure reduces in needle chamber I65, when pressure is reduced to necessarily
During value, needle-valve I68 is pressed to needle-valve base 74 by needle-valve back-moving spring I11, and combustion gas is not sprayed.
When piezoelectric element 23 is powered, piezoelectric element 23 extends, and control valve II62 overcomes control valve back-moving spring II57 bullet
The hydraulic coupling of fuel oil moves downward in spring force and control valve oil pocket II60, and control valve II62 lower sealing surface is pressed on control valve and answered
In position spring base II61 lower sealing surface, control valve oil pocket II60 no longer connects with draining oil duct II59, control valve oil pocket II60
Connected with oil-feed oil duct II55, fuel oil passes through oil-feed oil duct II55, control valve oil pocket II60, central oil passage from the second oil inlet 56
Oil inlet II58, central oil passage II16 enter in needle chamber II75, and fuel oil is acted on needle-valve II71 end faces, overcomes needle-valve to reset
Spring II18 spring force jacks up needle-valve II71, and combustion gas starts to spray.When piezoelectric element 23 powers off, control valve back-moving spring
Control valve II62 upper sealing cone is pressed on control valve seat II63 upper sealing cone by II57, and control valve oil pocket II60 is not
Connected again with oil-feed oil duct II55, control valve oil pocket II60 connects with draining oil duct II59, and the fuel oil in needle chamber II75 passes through
Central oil passage II16, central oil passage oil inlet II58, control valve oil pocket II60, draining oil duct II59 quickly leak into drain tap II20
In, pressure is reduced in needle chamber II75, and when pressure is reduced to certain value, needle-valve II71 is pressed to pin by needle-valve back-moving spring II18
Valve base 74, combustion gas is not sprayed.
Combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device has four kinds of mode of operations, by two kinds of pressure gas supply modes
Formed with three kinds of spray regimes, i.e., it is electrically different by boost electromagnetic valve coil 28, electromagnetic valve coil 41, the break-make of piezoelectric element 23
Produce four kinds of mode of operations：The first mode of operation is that electromagnetic valve coil 41 or piezoelectric element 23 are powered, i.e. single injector injection is non-
Pressurized combustion gases；Second of mode of operation is that first boost electromagnetic valve coil 28 is powered, piezoelectric element 23 is powered again, i.e., single injector sprays
Pressurized combustion gases；The third mode of operation is that electromagnetic valve coil 41 and piezoelectric element 23 are all powered, i.e., twin-jet nozzle sprays non pressurized combustion
Gas；4th kind of mode of operation is that first boost electromagnetic valve coil 28 is powered and then electromagnetic valve coil 41 and piezoelectric element 23 are all powered,
I.e. a nozzle injection pressurized combustion gases, a nozzle spray non pressurized combustion gas.Adjustment two can be passed through in the third operational mode
At the time of individual nozzle starts to spray non pressurized combustion gas, different non pressurized fuel gas injection rules is realized, as electromagnetic valve coil 41 is opened
Beginning is powered, piezoelectric element 23 is initially powered up again, or first piezoelectric element 23 is initially powered up, electromagnetic valve coil 41 is initially powered up again,
The non pressurized fuel gas injection rule of order of " anxious after first delaying " can be achieved.Can be by adjusting two nozzles under the 4th kind of mode of operation
At the time of starting to spray combustion gas, different pressure gas jet laws is realized, meets that injection pressure is variable in engine single cycle
Property require, such as first boost electromagnetic valve coil 28 is powered, electromagnetic valve coil 41 is initially powered up again, last piezoelectric element 23 starts to lead to
Electricity, or first boost electromagnetic valve coil 28 is powered, piezoelectric element 23 is initially powered up again, last electromagnetic valve coil 41 is initially powered up,
The gaseous-pressure sprayed into combustion chamber can be changed in engine single cycle, so as to change the mixability of combustion gas and air, combustion
Gas combustion characteristics flexibility and changeability.
When dual fuel engine works, needle chamber I65, the fuel oil in needle chamber II75 and band I67, band II72
In fuel oil be same oil, oil pressure is equal, avoids the fuel oil static leakage at pintle nozzle match-ing parts.Into charged piston cavity of resorption 25
In gaseous-pressure it is relatively low, the combustion gas leaked upwards by the gap between charged piston 34 and supercharging device shell 38 is few, and
In the presence of the long mating band of charged piston couple and charged piston back-moving spring chamber 31, the combustion gas of combustion gas compression portion 1 is let out
Leakage quantity can almost be ignored.During charged piston 34 moves, the pressurized combustion gases of charged piston cavity of resorption 25 pass through charged piston
34 couples leak upwards, and due to the long mating band of charged piston couple, combustion gas can seldom leak into charged piston back-moving spring chamber
31, reduce the leakage rate of pressurized combustion gases, and that fraction combustion gas for leaking into charged piston back-moving spring chamber 31 is leaking into
It will not continue to leak upwards in the presence of pressurised oil in charged piston back-moving spring chamber 31, avoid the further of pressurized combustion gases
Leakage.Into band I67, band II72 fuel oil, the combustion gas for making to be accumulated in pressure tank I69, pressure tank II70 will not
By the clearance leakage between needle-valve I68, needle-valve II71 and the needle-valve II71 of needle-valve base 74, so as to avoid fuel gas ejecting device
Combustion gas static leakage.Needle-valve I68, needle-valve II71 move during, in pressure tank I69, pressure tank II70 combustion gas pass through pin
Valve coupling leaks upwards, will not be leaked under the effect of fuel oil in band I67, band II72 needle-valve back-moving spring I11,
At needle-valve back-moving spring II18, the combustion gas dynamic leakage of fuel gas ejecting device is directly avoided.
As shown in the above description, combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device course of work is led to by boost electromagnetic valve
The supercharging of charged piston control combustion gas is crossed, combustion gas boost pressure and combustion gas charging efficiency are high, can quickly realize combustion gas supercharging spray
The switching without boosting jet with combustion gas is penetrated, meets that dual fuel engine different capacity is required the difference of fuel gas injection pressure；By
Magnetic valve and piezoelectric element control the motion of two needle-valves to realize the injection of two-way combustion gas respectively, take into account fuel gas injection timing it is controllable and
The advantages of fuel gas injection rule is variable, fuel gas injection flexibility is high, can quickly realize single gas nozzle injection and double gas injections
The switching of mouth injection, meets different demands and fuel gas injection rule variability requirements of the different capacity to fuel gas injection amount；Meanwhile
Using fuel sealing combustion gas, can preferably solve the problems, such as that combustion gas is leaked by pintle nozzle match-ing parts, engine can be effectively improved
Dynamic property and fuel economy.
Claims (3)
1. a kind of electromagnetism and supercharging piezoelectricity combination gas gas spraying device, including supercharging device shell, control device shell, injection
Crust of the device, combustion gas pressurization control magnetic valve, solenoid electric valve, piezoelectricity control valve and gas nozzle, it is characterized in that：The combustion gas
Nozzle includes two needle-valves, needle-valve base and needle-valve body fastening nut, and two needle-valves pass through shared needle-valve base and needle-valve body
Fastening nut is arranged in the needle chamber of injection apparatus outer casing bottom, and solenoid electric valve and piezoelectricity control valve are arranged on control device
In shell, control device shell is arranged in injection apparatus shell and solenoid electric valve and piezoelectricity control valve a corresponding pin respectively
Valve, sets control oil circuit between solenoid electric valve and piezoelectricity control valve and needle-valve, combustion gas pressurization control magnetic valve is arranged on supercharging
In crust of the device, supercharging device shell is arranged on injection apparatus shell, and pressure tank is formed between two needle-valves and needle-valve base,
Two pressure tanks are respectively communicated with inlet channel, and an inlet channel directly connects with air inlet, and another inlet channel is through combustion gas
Pressurization control magnetic valve connects air inlet again；
Control oil circuit between solenoid electric valve and piezoelectricity control valve and needle-valve specifically includes：Control valve return spring holder I (50)
The first draining oil duct (52) of upper setting and the second draining oil duct (43), control valve seat I (45) set oil-feed oil duct I (48), center
Oil duct oil inlet I (46) and control valve draining oil duct (47), control valve drain tap (8), control are set on injection apparatus shell (22)
Valve drain tap (8) processed connects with control valve draining oil duct (47), control valve seat I (45) and control valve return spring holder I (50) it
Between form control valve oil pocket I (44), gag lever post I (12) and needle-valve I (68) be co-axially mounted, along axis setting central oil passage I (13),
Needle chamber I (65), control valve return spring holder II (61) and control valve are formed between needle-valve I (68) and injection apparatus shell (22)
Control valve oil pocket II (60) is formed between seat II (63), central oil passage oil inlet II is set on control valve return spring holder II (61)
(58), gag lever post II (17) and needle-valve II (71) are co-axially mounted, and central oil passage II (16), needle-valve II (71) and spray are set along axis
Needle chamber II (75) is formed between injection device shell (22).
2. electromagnetism according to claim 1 and supercharging piezoelectricity combination gas gas spraying device, it is characterized in that outside injection apparatus
Oil inlet A (66) and oil inlet B (73) is set on shell (22), ring packing is set between needle-valve base (74) and needle-valve I (68)
Band I (67) is connected with oil inlet A (66), and annular sealing strip II (72) is set between needle-valve base (74) and needle-valve II (71) with entering
Hydraulic fluid port B (73) is connected.
3. electromagnetism according to claim 1 or 2 and supercharging piezoelectricity combination gas gas spraying device, it is characterized in that combustion gas is pressurized
The structure for controlling magnetic valve is：Boost electromagnetic valve coil (28) is arranged in electromagnetic valve body, and supercharging armature (40) is positioned at supercharging electricity
Below magnet valve coil (28), pressurization control valve rod (29) upper end is stuck on supercharging armature (40) by locating snap ring, pressurization control valve rod
(29) lower end is pressed on pressurization control valve base (26) through pressurization control valve rod return spring holder (30), check valve (33) right-hand member
It is connected by screw and is fixed on check valve little spring seat, check valve back-moving spring (32) left end passes through check valve big spring seat card
On one-way valve seat, check valve (33) left end is pressed in unidirectionally by check valve back-moving spring (32) right-hand member by check valve little spring seat
On valve seat, supercharger control valve oil pocket is formed between pressurization control valve rod return spring holder (30) and pressurization control valve base (26)
(2), pressurised oil oil-feed oil circuit (3) is connected by the lower sealing cone of pressurization control valve rod (29) with supercharger control valve oil pocket (2),
Supercharger control valve oil pocket (2) is connected by the upper sealing cone of pressurization control valve rod (29) with pressurised oil draining oil circuit (27), is increased
Pressure control valve base (26) is provided with supercharger control valve drain tap (37), pressurization control valve base (26) lower end installation charged piston
(34) charged piston epicoele (36), charged piston epicoele, are formed between pressurization control valve base (26) and charged piston (34)
(36) connected with supercharger control valve oil pocket (2), set supercharging to live between supercharging device shell (38) and charged piston (34) outer end
Back-moving spring chamber (31) is filled in, charged piston back-moving spring (35) is arranged on charged piston back-moving spring chamber (31) inside, supercharging dress
Put and charged piston cavity of resorption (25) is set between shell (38) and charged piston (34) lower end, charged piston cavity of resorption (25) connection air inlet
Mouth (4) and pressurized combustion gases outlet (24), pressurized combustion gases outlet (24) connect with inlet channel A (19).
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| CN201610111249.9A CN105781796B (en) | 2016-02-29 | 2016-02-29 | Electromagnetism and supercharging piezoelectricity combination gas gas spraying device |
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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 |
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2016
- 2016-02-29 CN CN201610111249.9A patent/CN105781796B/en active Active
Patent Citations (4)
| 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 |
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