CN105781796A - Electromagnetic and pressurization piezoelectric combined fuel gas injection device - Google Patents
Electromagnetic and pressurization piezoelectric combined fuel gas injection device Download PDFInfo
- Publication number
- CN105781796A CN105781796A CN201610111249.9A CN201610111249A CN105781796A CN 105781796 A CN105781796 A CN 105781796A CN 201610111249 A CN201610111249 A CN 201610111249A CN 105781796 A CN105781796 A CN 105781796A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- needle
- control valve
- fuel gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
-
- 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 invention provides an electromagnetic and pressurization piezoelectric combined fuel gas injection device. The electromagnetic and pressurization piezoelectric combined fuel gas injection device is formed by combining a fuel gas pressurization device, an electromagnetic control device, a piezoelectric control device and two fuel gas nozzles, wherein a fuel gas pressurized by the pressurization device is charged into the fuel gas nozzle controlled by the piezoelectric control device, the unpressurized fuel gas is charged into the fuel gas nozzle controlled by the electromagnetic control device, pressure of the fuel gas injected into a combustion chamber can be changed in a single cycle of an engine, thus a mixing degree of the fuel gas and air is changed, the combustion characteristic of the fuel gas is flexible and changeable, and the changeability requirement of the injection pressure in the single cycle of the engine is met; pressurization for the fuel gas is controlled by a pressurization electromagnetic valve, and switchover between pressurized injection for the fuel gas and unpressurized injection for the fuel gas can be rapidly realized; injection for two paths of the fuel gas is controlled by the electromagnetic valve and a piezoelectric component respectively, and switchover between injection of the single fuel gas nozzle and injection of the double fuel gas nozzles can be rapidly realized; and the fuel gas is sealed by fuel oil, and avoidance for leakage of the fuel gas through a needle valve partner is facilitated, and thus the dynamic property of the engine and the economical efficiency of fuel are improved.
Description
Technical field
The present invention relates to a kind of dual fuel engine fuel gas ejecting device, specifically a kind of combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device.
Background technology
Development engine replacing fuel is to solve energy shortage and problem of environmental pollution effectively one of means.Gaseous fuel becomes the engine replacing fuel with good development prospect because of advantages such as aboundresources, cheap and combustion cleanings.
Existing in-cylinder direct-jet fuel gas ejecting device many employings high-pressure pump compressed gas is to authorized pressure, the motion being controlled needle-valve by electromagnetic valve realizes fuel gas injection, the weak point existed has: high-pressure pump structure is complicated, and the transmission pipeline from pump end to fuel gas ejecting device is long, and pressurized combustion gases pressure oscillation is big；Pressurized combustion gases injection apparatus can meet combustion gas single cycle inner high voltage or low-pressure fuel injection requirement, but can not realize expulsion pressure variability requirements in electromotor single cycle；Single injector fuel gas ejecting device coupling engine power is limited, it is impossible to meet the fuel gas injection amount demand under engine gas spraying fire requirement and different capacity simultaneously；Although and two fuel gas ejecting devices can meet engine gas eject request, but size and installation site are limited by cylinder cap；Fuel gas ejecting device utilizes pressure gas to back down needle-valve injection combustion gas, and owing to the compressibility of gas is strong, fuel gas injection is unstable, is unfavorable for realizing the accurate control of needle valve movement；Additionally, along with the motion combustion gas of spool is aggravated to the leakage of electromagnetic valve end by the gap between spool and valve body, cause that fuel gas injection pressure and injection rate reduce, affect engine power performance and fuel economy.
Summary of the invention
Offer one is provided and can meet expulsion pressure variability requirements in electromotor single cycle, the problem that combustion gas is leaked by pintle nozzle match-ing parts can be solved preferably, it is possible to be effectively improved the dynamic property of electromotor and the electromagnetism of fuel economy and supercharging piezoelectricity combination gas gas spraying device.
The object of the present invention is achieved like this:
nullIncluding pressurizer shell、Control crust of the device、Injection apparatus shell、Combustion gas pressurization control electromagnetic valve、Solenoid electric valve、Piezoelectricity controls valve and gas nozzle，Described gas nozzle includes 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 needle-valve base and the needle-valve body fastening nut shared，Solenoid electric valve and piezoelectricity control valve and are arranged in control crust of the device，Control crust of the device and be arranged in injection apparatus shell and solenoid electric valve and piezoelectricity control valve and distinguishes a corresponding needle-valve，Solenoid electric valve and piezoelectricity control to arrange oil circuit control between valve and needle-valve，Combustion gas pressurization control electromagnetic valve is arranged in pressurizer shell，Pressurizer 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，One inlet channel directly connects with air inlet，Another inlet channel connects air inlet again through combustion gas pressurization control electromagnetic valve.
The present invention can also include:
null1、The oil circuit control of putting that solenoid electric valve and piezoelectricity control between valve and needle-valve specifically includes: control to arrange the first draining oil duct 52 and the second draining oil duct 43 on valve return spring holder I50，Control valve seat I45 arranges oil-feed oil duct I48、Central oil passage oil-in I46 and control valve draining oil duct 47，Injection apparatus shell 22 arranges control valve drain tap 8，Control valve drain tap 8 and connect with controlling valve draining oil duct 47，Formed between control valve seat I45 and control valve return spring holder I50 and control valve oil chamber I44，Gag lever post I12 and needle-valve I68 is co-axially mounted，Along axis, central oil passage I13 is set，Needle chamber I65 is formed between needle-valve I68 and injection apparatus shell 22，Control to be formed between valve return spring holder II61 and control valve seat II63 to control valve oil chamber II60，Control valve return spring holder II61 arranges central oil passage oil-in II58，Gag lever post II17 and needle-valve II71 is co-axially mounted，Along axis, central oil passage II16 is set，Needle chamber II75 is formed between needle-valve II71 and injection apparatus shell 22.
2, injection apparatus shell 22 arranges the 3rd oil-in 66 and the 4th oil-in 73, annular sealing strip I67 is set between needle-valve base 74 and needle-valve I68, connect with the 3rd oil-in 66, annular sealing strip II72 is set between needle-valve base 74 and needle-valve II71, connect with the 4th oil-in 73.
null3、The structure of combustion gas pressurization control electromagnetic valve is: boost electromagnetic valve coil 28 is arranged in electromagnetic valve body，Supercharging armature 40 is positioned at below boost electromagnetic 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 is connected by screw and is fixed on check valve little spring seat，Check valve back-moving spring 32 left end is stuck on one-way valve seat by check valve big spring seat，Check valve 33 left end is pressed on one-way valve seat by check valve back-moving spring 32 right-hand member by check valve little spring seat，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 oil-feed oil circuit 3 is connected with supercharger control valve oil pocket 2 by the lower seal conical surface of pressurization control valve rod 29，Supercharger control valve oil pocket 2 is connected with pressurised oil draining oil circuit 27 by the upper sealing cone of pressurization control valve rod 29，Pressurization control valve base 26 has supercharger control valve drain tap 37，Charged piston 34 is installed in pressurization control valve base 26 lower end，Charged piston epicoele 36 is formed between pressurization control valve base 26 and charged piston 34，Charged piston epicoele 36 connects with supercharger control valve oil pocket 2，Charged piston back-moving spring chamber 31 is set between pressurizer shell 38 and charged piston 34 outer end，It is internal that charged piston back-moving spring 35 is arranged on charged piston back-moving spring chamber 31，Between pressurizer shell 38 and charged piston 34 lower end, charged piston cavity of resorption 25 is set，Charged piston cavity of resorption 25 connects air inlet 4 and pressurized combustion gases outlet 24，Pressurized combustion gases outlet 24 connects with inlet channel II19.
The invention provides a kind of combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device, by a pressurizer of gas, one electromagnetic control apparatus, one piezoelectricity controls device and biphase isostructural gas nozzle is combined in a fuel gas ejecting device, the combustion gas of pressurizer supercharging passes into piezoelectricity and controls in the gas nozzle that device controls, non pressurized combustion gas passes in the gas nozzle that electromagnetic control apparatus controls, expulsion pressure variability requirements in electromotor single cycle can be met, simultaneously, utilize fuel sealing combustion gas, the problem that combustion gas is leaked by pintle nozzle match-ing parts can be solved preferably, dynamic property and the fuel economy of electromotor can be effectively improved.
The combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device mainly includes combustion gas compression portion 1, Electromagnetic Control part 6, piezoelectricity control part 21, double; two gas nozzle part 15, pressurizer shell 38, controls crust of the device 5, injection apparatus shell 22, inlet channel I9, inlet channel II19, pressurised oil oil-feed oil circuit 3, pressurised oil draining oil circuit 27, oil-feed oil duct 10.Combustion gas compression portion 1 is by charged piston 34, charged piston epicoele 36, charged piston cavity of resorption 25, charged piston back-moving spring 35, charged piston back-moving spring chamber 31, boost electromagnetic valve coil 28, supercharging armature 40, pressurization control valve rod 29, supercharger 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, pressurization control valve rod return spring holder 30, supercharger control valve drain tap 37, check valve 33, check valve back-moving spring 32 grade forms.Electromagnetic Control part 6 is made up of electromagnetic 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 chamber I44, the first oil-in 49, oil-feed oil duct I48, central oil passage oil-in I46, first draining oil duct the 52, second draining oil duct 43, drain tap I7, control valve draining oil duct 47, control valve drain tap 8 etc..Piezoelectricity controls part 21 and is made up of 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 chamber II60, the second oil-in 56, oil-feed oil duct II55, central oil passage oil-in II58, draining oil duct II59, drain tap II20 etc..Double; two gas nozzle parts 15 are made up of the identical gas nozzle part I64 of needle-valve base 74, needle-valve body fastening nut 14 and structure and gas nozzle part II76, gas nozzle part I64 mainly includes the 3rd oil-in 66, 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, and gas nozzle part II76 mainly includes the 4th oil-in 73, needle-valve II71, needle-valve back-moving spring II18, gag lever post II17, central oil passage II16, needle chamber II75, pressure tank II70, band II72.nullBoost electromagnetic valve coil 28 is arranged in electromagnetic valve body，Supercharging armature 40 is positioned at below boost electromagnetic 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 is connected by screw and is fixed on check valve little spring seat，Check valve back-moving spring 32 left end is stuck on one-way valve seat by check valve big spring seat，Check valve 33 left end is pressed on one-way valve seat by check valve back-moving spring 32 right-hand member by check valve little spring seat，It is internal that electromagnetic valve coil 41 and armature 53 are arranged on control crust of the device 5，Control valve I42 upper end to be stuck on armature 53 by locating snap ring，Control valve I42 lower end to be pressed on control valve seat I45，Control valve back-moving spring I51 top to be pressed on control valve return spring holder I50，Control valve back-moving spring I51 bottom to be stuck on control valve I42，It is internal that piezoelectric element 23 is arranged on control crust of the device 5，Control valve II64 is set inside control valve seat II63，Control valve seat II63 outer end arranges sealing ring，Control valve II62 upper end to be stuck on metallic gasket 54，Control valve II62 lower end to be pressed on control valve back-moving spring II57，Control valve back-moving spring II57 lower end to be supported on control valve return spring holder II61，Gag lever post I12、Gag lever post II17 is stuck on injection apparatus shell 22，Gag lever post I12 lower end is enclosed within inside needle-valve I68，Gag lever post II17 lower end is enclosed within inside needle-valve II71，Gag lever post I12 outer end arranges needle-valve back-moving spring I11，Needle-valve back-moving spring I11 is supported on needle-valve I68，Gag lever post II17 outer end arranges needle-valve back-moving spring II1，Needle-valve back-moving spring II18 is supported on needle-valve II71，Alignment pin location is adopted between needle-valve base 74 and injection apparatus shell 22，Needle-valve I68、It is internal that needle-valve II71 is arranged on needle-valve base 74，Needle-valve I68、Needle-valve II71 is fixed on injection apparatus shell 22 by needle-valve body fastening nut 14，Pressure tank I69 is formed between needle-valve I68 and needle-valve base 74，Pressure tank II70 is formed between needle-valve II71 and needle-valve base 74.nullSupercharger control valve oil pocket 2 is formed between pressurization control valve rod return spring holder 30 and pressurization control valve base 26，Pressurised oil oil-feed oil circuit 3 is connected with supercharger control valve oil pocket 2 by the lower seal conical surface of pressurization control valve rod 29，Supercharger control valve oil pocket 2 is connected with pressurised oil draining oil circuit 27 by the upper sealing cone of pressurization control valve rod 29，Pressurization control valve base 26 has supercharger control valve drain tap 37，Charged piston 34 is installed in pressurization control valve base 26 lower end，Charged piston epicoele 36 is formed between pressurization control valve base 26 and charged piston 34，Charged piston epicoele 36 connects with supercharger control valve oil pocket 2，Charged piston back-moving spring chamber 31 is set between pressurizer shell 38 and charged piston 34 outer end，It is internal that charged piston back-moving spring 35 is arranged on charged piston back-moving spring chamber 31，Between pressurizer shell 38 and charged piston 34 lower end, charged piston cavity of resorption 25 is set，Charged piston cavity of resorption 25 connects air inlet 4 and pressurized combustion gases outlet 24，Pressurized combustion gases outlet 24 connects with inlet channel II19.nullControl valve return spring holder I50 arranges the first draining oil duct 52 and the second draining oil duct 43，Control valve seat I45 arranges oil-feed oil duct I48、Central oil passage oil-in I46 and control valve draining oil duct 47，Injection apparatus shell 22 arranges control valve drain tap 8，Control valve drain tap 8 and connect with controlling valve draining oil duct 47，Formed between control valve seat I45 and control valve return spring holder I50 and control valve oil chamber I44，Gag lever post I12 and needle-valve I68 is co-axially mounted，Along axis, central oil passage I13 is set，Needle chamber I65 is formed between needle-valve I68 and injection apparatus shell 22，Control to be formed between valve return spring holder II61 and control valve seat II63 to control valve oil chamber II60，Control valve return spring holder II61 arranges central oil passage oil-in II58，Gag lever post II17 and needle-valve II71 is co-axially mounted，Along axis, central oil passage II16 is set，Needle chamber II75 is formed between needle-valve II71 and injection apparatus shell 22.Injection apparatus shell 22 arranges the 3rd oil-in 66 and the 4th oil-in 73, annular sealing strip I67 is set between needle-valve base 74 and needle-valve I68, connect with the 3rd oil-in 66, annular sealing strip II72 is set between needle-valve base 74 and needle-valve II71, connect with the 4th oil-in 73.Fuel gas ejecting device connects with two-way air inlet gas circuit, and air inlet 4 of leading up to enters fuel gas ejecting device, and inlet channel I9 of leading up to enters fuel gas ejecting device.Air inlet 4 is arranged on pressurizer shell 38, air inlet 4 is connected with inlet channel II19 by charged piston cavity of resorption 25, pressurized combustion gases outlet 24, and inlet channel II19 is connected with pressure tank II70 by pressurizer shell 38, control crust of the device 5, injection apparatus shell 22.Inlet channel I9 is arranged on injection apparatus shell 22, and inlet channel I9 connects with pressure tank I69.Oil-feed oil duct 10 is along controlling crust of the device 5 radially into, in fuel gas ejecting device, being divided into two-way tributary and a road main flow on control crust of the device 5, and a tributary, road is entered in Electromagnetic Control part 6 by the first oil-in 49；One tributary, tunnel enters piezoelectricity by the second oil-in 56 and controls in part 21；Oil-feed oil duct 10 main flow enters injection apparatus shell 22, and is divided into two-way on injection apparatus shell 22, and the 3rd oil-in 66 of leading up to enters in band I67；The 4th oil-in 73 of leading up to enters in band II72.First oil-in 49 connects with oil-feed oil duct I48, oil-feed oil duct I48 connects with controlling valve oil chamber I44 by controlling the lower seal conical surface of valve I42, control valve oil chamber I44 to be connected with needle chamber I65 by central oil passage oil-in I46, central oil passage I13, control valve oil chamber I44 to be connected by the upper sealing cone and the first draining oil duct 52 controlling valve I42, first draining oil duct 52 is connected by electromagnetic valve end and the second draining oil duct 43, and the second draining oil duct 43 connects with drain tap I7.Second oil-in 56 connects with oil-feed oil duct II55, oil-feed oil duct II55 connects with controlling valve oil chamber II60 by controlling the upper sealing cone of valve II62, control valve oil chamber II60 to be connected with needle chamber II75 by central oil passage oil-in II58, central oil passage II16, controlling valve oil chamber II60 and connect with draining oil duct II59 by controlling the lower seal conical surface of valve II62, draining oil duct II59 connects with drain tap II20.
It is an advantage of the current invention that:
By a pressurizer of gas, an electromagnetic control apparatus, a piezoelectricity controls device and biphase isostructural gas nozzle is combined in a fuel gas ejecting device, simplifies structure, reduces installing space；The motion that boost electromagnetic valve controls charged piston is utilized to 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 the combustion gas switching without boosting jet, meet the different requirements to fuel gas injection pressure of the dual fuel engine different capacity, when pressurizer and piezoelectricity control device are successively all energized, pressurized combustion gases sprays, when pressurizer no power, piezoelectricity control device energising or electromagnetic control apparatus, and non pressurized fuel gas injection；The motion that electromagnetic valve and piezoelectric element control two needle-valves respectively is utilized to realize the injection of two-way combustion gas, fuel gas injection motility is high, can quickly realize single gas nozzle injection and the switching of double; two gas nozzle injection, meet the dual fuel engine different capacity different demands to fuel gas injection amount, small-power output can be realized, when electromagnetic control apparatus and piezoelectricity control to realize high-power output when device is energized simultaneously when electromagnetic control apparatus or piezoelectricity control device energising；When two control devices all work, can pass through to adjust the energising moment, realize fuel gas injection rule variable requirements, as first electromagnetic control apparatus be energized again piezoelectricity control device or first piezoelectricity control device be energized again electromagnetic control apparatus energising time can realize the order fuel gas injection rule of " first slow after anxious "；The combustion gas of pressurizer supercharging passes into piezoelectricity and controls in the gas nozzle that device controls, non pressurized combustion gas passes in the gas nozzle that electromagnetic control apparatus controls, expulsion pressure variability requirements in electromotor single cycle can be realized, 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, piezoelectric element is initially powered up again, last electromagnetic valve coil is initially powered up, the gaseous-pressure spraying in combustor can be changed in electromotor single cycle, thus changing the mixability of combustion gas and air, fuel gas buring characteristic flexibility and changeability.Electromagnetic valve is utilized to control needle valve movement, fuel gas injection amount and fuel gas injection timing controlled；Utilizing piezoelectric element to control needle valve movement, needle-valve maximum lift is adjustable, and fuel gas injection amount and fuel gas injection rate control accuracy are high；Utilizing piezoelectric element to control the injection of pressurized combustion gases, fast response time, pressurized combustion gases jet law is variable；Utilizing fuel oil to control needle-valve cavity pressure, control accuracy is high, it is possible to meet system jetting stability requirement preferably；Utilize fuel sealing combustion gas, be conducive to avoiding combustion gas to be leaked by pintle nozzle match-ing parts, improve fuel gas injection pressure and injection rate, improve dynamic property and the fuel economy of electromotor；The fuel oil at needle chamber and pintle nozzle match-ing parts place is same oil, and oil pressure is equal, it is to avoid the fuel oil static leakage at pintle nozzle match-ing parts place.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic 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；
The piezoelectricity that Fig. 4 is combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device controls part-structure schematic diagram；
Fig. 5 is double; two gas nozzle part-structure schematic diagrams of combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the present invention is described further:
In conjunction with Fig. 1-5, the combined electromagnetic of the present invention-supercharging piezoelectricity fuel gas ejecting device mainly includes combustion gas compression portion 1, Electromagnetic Control part 6, piezoelectricity control part 21, double; two gas nozzle part 15, pressurizer shell 38, controls crust of the device 5, injection apparatus shell 22, inlet channel I9, inlet channel II19, pressurised oil oil-feed oil circuit 3, pressurised oil draining oil circuit 27, oil-feed oil duct 10.
Combustion gas compression portion 1 is by by charged piston 34, charged piston epicoele 36, charged piston cavity of resorption 25, charged piston back-moving spring 35, charged piston back-moving spring chamber 31, boost electromagnetic valve coil 28, supercharging armature 40, pressurization control valve rod 29, supercharger 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, pressurization control valve rod return spring holder 30, supercharger control valve drain tap 37, check valve 33, check valve back-moving spring 32 grade forms.It is big that charged piston 34 is designed to apex area, bottom area is little, utilize both ends of the surface product moment to realize combustion gas supercharging, pressurization control valve rod 29 arranges sealing cone and the lower seal conical surface, realize the switching between pressurised oil inlet and outlet of fuel channel in fuel gas ejecting device, pressurization control valve rod 29 lower end arranges taper surface, balance pressurised oil hydraulic coupling suffered by pressurization control valve rod 29 lower sealing surface, pressurization control valve base 26 has supercharger control valve drain tap 37, vent from clearance flow between pressurization control valve rod 29 and pressurization control valve base 26 to the pressurised oil of pressurization control valve rod 29 bottom, avoid pressurised oil that pressurization control valve rod 29 produces active force upwards and reduce pressurization control valve rod 29 control accuracy.
Electromagnetic Control part 6 is made up of electromagnetic 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 chamber I44, the first oil-in 49, oil-feed oil duct I48, central oil passage oil-in I46, first draining oil duct the 52, second draining oil duct 43, drain tap I7, control valve draining oil duct 47, control valve drain tap 8 etc..Control valve I42 and sealing cone and the lower seal conical surface are set, realize the switching between fuel oil inlet and outlet of fuel channel in control valve oil chamber I44, first draining oil duct 52 is connected by electromagnetic valve end and the second draining oil duct 43, electromagnetic valve end is full of fuel oil, the shock and vibration that electromagnetic valve armature moves up and down can be reduced, thus improving the stability of dual-coil electromagnetic valve work, and during fuel oil draining, flow through electromagnetic valve end, take away dual-coil electromagnetic valve heat, play the effect of cooling electromagnetic valve, control valve draining oil duct 47 and connect with controlling valve drain tap 8, vent from controlling between valve I42 and control valve seat I45 clearance flow to the fuel oil controlling valve I42 bottom.
Piezoelectricity controls part 21 and is formed 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 chamber II60, the second oil-in 56, oil-feed oil duct II55, central oil passage oil-in II58, draining oil duct II59, drain tap II20 etc..Control valve II62 and sealing cone and the lower seal conical surface are set, realize the switching between fuel oil inlet and outlet of fuel channel in control valve oil chamber II60, control valve return spring holder II61 arranges draining oil duct II59, connection controls valve oil chamber II60 and drain tap II20, metallic gasket 54 plays the effect of isolation, it is to avoid piezoelectric element 23 touches from the control valve seat II63 fuel oil upwards leaked.
Double; two gas nozzle parts 15 are made up of the identical gas nozzle part I64 of needle-valve base 74, needle-valve body fastening nut 14 and structure and gas nozzle part II76, gas nozzle part I64 mainly includes the 3rd oil-in 66, 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, and gas nozzle part II76 mainly includes the 4th oil-in 73, needle-valve II71, needle-valve back-moving spring II18, gag lever post II17, central oil passage II16, needle chamber II75, pressure tank II70, band II72.Needle-valve back-moving spring I11, needle-valve back-moving spring II18 is respectively by needle-valve I68, needle-valve II71 presses to needle-valve base 74, needle chamber I65, fuel oil in needle chamber II75 plays control needle-valve I68, the effect of needle-valve II71 motion, gag lever post I12, gag lever post II17 plays restriction needle-valve I68, the effect of needle-valve II71 lift, band I67, band II72 plays the effect sealing the combustion gas leaked by pintle nozzle match-ing parts, pressure tank I69 and pressure tank II70 plays the effect of stable air pressure, thus reducing the air pressure fluctuation impact on fuel gas injection, adopt between needle-valve body fastening nut 14 with injection apparatus shell 22 and threaded and sealing ring is set, the gas in combustor is avoided to enter inside fuel gas ejecting device.
During dual fuel engine work, two-way combustion gas enters fuel gas ejecting device, one tunnel combustion gas enters charged piston cavity of resorption 25 from air inlet 4 and carries out supercharging or not supercharging, entering in pressure tank II70 by pressurized combustion gases outlet 24, inlet channel II19 after leaving charged piston cavity of resorption 25, a road combustion gas enters in pressure tank I69 either directly through inlet channel I9.Fuel oil is by oil-feed oil duct 10 along controlling crust of the device 5 radially into, in fuel gas ejecting device, being divided into three tunnels on control crust of the device 5, and the first oil-in 49 of leading up to enters in Electromagnetic Control part 6；Second oil-in 56 of leading up to enters piezoelectricity and controls in part 21；One curb oil-feed oil duct 10 enters injection apparatus shell 22, and is divided into two-way on injection apparatus shell 22, and the 3rd oil-in 66 of leading up to enters in band I67, and the 4th oil-in 73 of leading up to enters in band II72.
When boost electromagnetic valve coil 28 is energized, supercharging armature 40 drives pressurization control valve rod 29 to overcome the spring force of supercharger control valve back-moving spring 39 to move upward, the upper sealing cone of pressurization control valve rod 29 is pressed on the upper sealing cone of pressurization control valve rod return spring holder 30, supercharger control valve oil pocket 2 no longer connects with pressurised oil draining oil circuit 27, supercharger control valve oil pocket 2 connects with pressurised oil oil-feed oil circuit 3, pressurised oil enters charged piston epicoele 36 from pressurised oil oil-feed oil circuit 3 by supercharger control valve oil pocket 2, pressurised oil acts on charged piston 34 top, charged piston is pressed for 34 times by the spring force overcoming charged piston back-moving spring 35, charged piston epicoele 36 volume increases, charged piston cavity of resorption 25 volume reduces, the combustion gas entering charged piston cavity of resorption 25 is compressed, gaseous-pressure increases.When making a concerted effort more than gaseous-pressure in air inlet 4 of spring force when the gaseous-pressure in charged piston cavity of resorption 25 and check valve back-moving spring 32, check valve 33 moves right, charged piston cavity of resorption 25 no longer connects with air inlet 4, avoid pressurized combustion gases to leak from air inlet 4, it is ensured that combustion gas charging efficiency.nullDuring boost electromagnetic valve coil 28 power-off，Pressurization control valve rod 29 is at the moved downward of supercharger control valve back-moving spring 39，The lower seal conical surface of pressurization control valve rod 29 is pressed on the lower seal conical surface of pressurization control valve base 26，Pressurised oil oil-feed oil circuit 3 no longer connects with supercharger control valve oil pocket 2，Supercharger control valve oil pocket 2 connects with pressurised oil draining oil circuit 27，Pressurised oil is leaked into pressurised oil draining oil circuit 27 from charged piston epicoele 36 by supercharger control valve oil pocket 2，In charged piston epicoele 36, pressure reduces，Charged piston back-moving spring 35 is by charged piston 34 jack-up，When making a concerted effort less than gaseous-pressure in air inlet 4 of spring force when the gaseous-pressure in charged piston cavity of resorption 25 and check valve back-moving spring 32，Check valve 33 is to left movement，Charged piston cavity of resorption 25 connects with air inlet 4，Combustion gas enters fuel gas ejecting device from air inlet 4.
When electromagnetic valve coil 41 is energized, armature 53 overcomes the spring force controlling valve back-moving spring I51 to move upward with brake control valve I42, the upper sealing cone controlling valve I42 is pressed on the upper sealing cone controlling valve return spring holder I50, control valve oil chamber I44 no longer to connect with the first draining oil duct 52, control valve oil chamber I44 to connect with oil-feed oil duct I48, fuel oil passes through oil-feed oil duct I48 from the first oil-in 49, control valve oil chamber I44, central oil passage oil-in I46, central oil passage I13 enters in needle chamber I65, fuel oil acts on needle-valve I68 end face, overcome the spring force of needle-valve back-moving spring I11 by needle-valve I68 jack-up, combustion gas starts injection.During electromagnetic valve coil 41 power-off, control valve back-moving spring I51 and the lower seal conical surface controlling valve I42 is pressed on the lower seal conical surface of control valve seat I45, control valve oil chamber I44 no longer to connect with oil-feed oil duct I48, control valve oil chamber I44 and the first draining oil duct 52 connects, fuel oil in needle chamber I65 passes through central oil passage I13, central oil passage I13, control valve oil chamber I44, first draining oil duct 52, second draining oil duct 43 quickly leaks into drain tap I7, in needle chamber I65, pressure reduces, when pressure is reduced to certain value, needle-valve I68 is pressed to needle-valve base 74 by needle-valve back-moving spring I11, combustion gas is not sprayed.
When piezoelectric element 23 is energized, piezoelectric element 23 extends, controlling valve II62 overcomes the hydraulic coupling of fuel oil in the spring force controlling valve back-moving spring II57 and control valve oil chamber II60 to move downward, the lower sealing surface controlling valve II62 is pressed in the lower sealing surface controlling valve return spring holder II61, control valve oil chamber II60 no longer to connect with draining oil duct II59, control valve oil chamber II60 to connect with oil-feed oil duct II55, fuel oil passes through oil-feed oil duct II55 from the second oil-in 56, control valve oil chamber II60, central oil passage oil-in II58, central oil passage II16 enters in needle chamber II75, fuel oil acts on needle-valve II71 end face, overcome the spring force of needle-valve back-moving spring II18 by needle-valve II71 jack-up, combustion gas starts injection.During piezoelectric element 23 power-off, control valve back-moving spring II57 and the upper sealing cone controlling valve II62 is pressed on the upper sealing cone of control valve seat II63, control valve oil chamber II60 no longer to connect with oil-feed oil duct II55, control valve oil chamber II60 to connect with draining oil duct II59, fuel oil in needle chamber II75 passes through central oil passage II16, central oil passage oil-in II58, control valve oil chamber II60, draining oil duct II59 quickly leaks in drain tap II20, in needle chamber II75, pressure reduces, when pressure is reduced to certain value, needle-valve II71 is pressed to needle-valve base 74 by needle-valve back-moving spring II18, combustion gas is not sprayed.
Combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device has four kinds of mode of operations, it is made up of two kinds of pressure gas supply modes and three kinds of spray regimes, namely being produced four kinds of mode of operations by boost electromagnetic valve coil 28, electromagnetic valve coil 41, piezoelectric element 23 power on/off mode difference: the first mode of operation is electromagnetic valve coil 41 or piezoelectric element 23 is energized, namely single injector sprays non pressurized combustion gas；The second mode of operation be first boost electromagnetic valve coil 28 be energized, again piezoelectric element 23 be energized, i.e. single injector injection pressurized combustion gases；The third mode of operation is electromagnetic valve coil 41 and piezoelectric element 23 is all energized, and namely twin-jet nozzle sprays non pressurized combustion gas；4th kind of mode of operation be first boost electromagnetic valve coil 28 be energized, then electromagnetic valve coil 41 and piezoelectric element 23 be all energized, i.e. a nozzle injection pressurized combustion gases, a nozzle sprays non pressurized combustion gas.Can start to spray the moment of non pressurized combustion gas by two nozzles of adjustment in the third operational mode, realize different non pressurized fuel gas injection rules, as electromagnetic valve coil 41 be initially powered up, again piezoelectric element 23 be initially powered up, or first piezoelectric element 23 is initially powered up, again electromagnetic valve coil 41 be initially powered up, it may be achieved the non pressurized fuel gas injection rule of order of " first slow after anxious ".When can start to spray combustion gas by two nozzles of adjustment under the 4th kind of mode of operation, realize different pressure gas jet laws, meet expulsion pressure variability requirements in electromotor single cycle, as first boost electromagnetic valve coil 28 is energized, electromagnetic valve coil 41 is initially powered up again, last piezoelectric element 23 is initially powered up, or first boost electromagnetic valve coil 28 is energized, piezoelectric element 23 is initially powered up again, last electromagnetic valve coil 41 is initially powered up, the gaseous-pressure spraying in combustor can be changed in electromotor single cycle, thus changing the mixability of combustion gas and air, fuel gas buring characteristic flexibility and changeability.
During dual fuel engine work, the fuel oil in needle chamber I65, needle chamber II75 and the fuel oil in band I67, band II72 are same oil, and oil pressure is equal, it is to avoid the fuel oil static leakage at pintle nozzle match-ing parts place.Enter the gaseous-pressure in charged piston cavity of resorption 25 relatively low, the combustion gas upwards leaked by the gap between charged piston 34 and pressurizer shell 38 is few, and under the long mating band of charged piston couple and the effect in charged piston back-moving spring chamber 31, the gas leakage amount of combustion gas compression portion 1 almost can be ignored.In the process of charged piston 34 motion, the pressurized combustion gases of charged piston cavity of resorption 25 is upwards leaked by charged piston 34 couple, long mating band due to charged piston couple, combustion gas seldom can leak into charged piston back-moving spring chamber 31, decrease the leakage rate of pressurized combustion gases, and leak into and will not continue to upwards leak under the effect of that fraction combustion gas in charged piston back-moving spring chamber 31 pressurised oil in leaking into charged piston back-moving spring chamber 31, it is to avoid the further leakage of pressurized combustion gases.Enter the fuel oil of band I67, band II72, make the combustion gas being accumulated in pressure tank I69, pressure tank II70 will not pass through the clearance leakage between needle-valve I68, needle-valve II71 and needle-valve base 74 needle-valve II71, thus avoiding the combustion gas static leakage of fuel gas ejecting device.In the process of needle-valve I68, needle-valve II71 motion, in pressure tank I69, pressure tank II70, combustion gas is upwards leaked by pintle nozzle match-ing parts, needle-valve back-moving spring I11, needle-valve back-moving spring II18 place will not be leaked under fuel oil effect in band I67, band II72, directly avoid the combustion gas dynamic leakage of fuel gas ejecting device.
As shown in the above description, combined electromagnetic-supercharging piezoelectricity fuel gas ejecting device work process is controlled the supercharging of combustion gas by boost electromagnetic valve by charged piston, combustion gas boost pressure and combustion gas charging efficiency are high, can quickly realize combustion gas boosting jet and the combustion gas switching without boosting jet, meet the different requirements to fuel gas injection pressure of the dual fuel engine different capacity；Controlled the motion of two needle-valves respectively by electromagnetic valve and piezoelectric element and realize the injection of two-way combustion gas, take into account the advantage that fuel gas injection timing is controlled and fuel gas injection rule is variable, fuel gas injection motility is high, can quickly realize the injection of single gas nozzle and the switching of double; two gas nozzles injection, meet different capacity to the different demands of fuel gas injection amount and fuel gas injection rule variability requirements；Meanwhile, fuel sealing combustion gas is utilized, it is possible to solve the problem that combustion gas is leaked by pintle nozzle match-ing parts preferably, dynamic property and the fuel economy of electromotor can be effectively improved.
Claims (4)
- null1. an electromagnetism and supercharging piezoelectricity combination gas gas spraying device，Including pressurizer shell、Control crust of the device、Injection apparatus shell、Combustion gas pressurization control electromagnetic valve、Solenoid electric valve、Piezoelectricity controls valve and gas nozzle，It is characterized in that: described gas nozzle includes 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 needle-valve base and the needle-valve body fastening nut shared，Solenoid electric valve and piezoelectricity control valve and are arranged in control crust of the device，Control crust of the device and be arranged in injection apparatus shell and solenoid electric valve and piezoelectricity control valve and distinguishes a corresponding needle-valve，Solenoid electric valve and piezoelectricity control to arrange oil circuit control between valve and needle-valve，Combustion gas pressurization control electromagnetic valve is arranged in pressurizer shell，Pressurizer 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，One inlet channel directly connects with air inlet，Another inlet channel connects air inlet again through combustion gas pressurization control electromagnetic valve.
- null2. electromagnetism according to claim 1 and supercharging piezoelectricity combination gas gas spraying device，It is characterized in that the oil circuit control of putting that solenoid electric valve and piezoelectricity control between valve and needle-valve specifically includes: control valve return spring holder I (50) arranges the first draining oil duct (52) and the second draining oil duct (43)，Control valve seat I (45) arranges oil-feed oil duct I (48)、Central oil passage oil-in I (46) and control valve draining oil duct (47)，Injection apparatus shell (22) arranges control valve drain tap (8)，Control valve drain tap (8) and connect with controlling valve draining oil duct (47)，Formed between control valve seat I (45) and control valve return spring holder I (50) and control valve oil chamber I (44)，Gag lever post I (12) and needle-valve I (68) is co-axially mounted，Along axis, central oil passage I (13) is set，Needle chamber I (65) is formed between needle-valve I (68) and injection apparatus shell (22)，Control to be formed between valve return spring holder II (61) and control valve seat II (63) to control valve oil chamber II (60)，Control valve return spring holder II (61) arranges central oil passage oil-in II (58)，Gag lever post II (17) and needle-valve II (71) is co-axially mounted，Along axis, central oil passage II (16) is set，Needle chamber II (75) is formed between needle-valve II (71) and injection apparatus shell (22).
- 3. electromagnetism according to claim 2 and supercharging piezoelectricity combination gas gas spraying device, it is characterized in that injection apparatus shell (22) is arranged the 3rd oil-in (66) and the 4th oil-in (73), arrange between needle-valve base (74) and needle-valve I (68) annular sealing strip I (67 with the 3rd oil-in (66 connect, needle-valve base (74 and needle-valve II (arrange annular sealing strip II (72) between 71 to connect with the 4th oil-in (73).
- null4. according to claim 1、Electromagnetism described in 2 or 3 and supercharging piezoelectricity combination gas gas spraying device，It is characterized in that the structure of combustion gas pressurization control electromagnetic valve is: boost electromagnetic valve coil (28) is arranged in electromagnetic valve body，Supercharging armature (40) is positioned at boost electromagnetic valve coil (28) lower section，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 is connected by screw and is fixed on check valve little spring seat，Check valve back-moving spring (32) left end is stuck on one-way valve seat by check valve big spring seat，Check valve (33) left end is pressed on one-way valve seat by check valve back-moving spring (32) right-hand member by check valve little spring seat，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 oil-feed oil circuit (3) is connected with supercharger control valve oil pocket (2) by the lower seal conical surface of pressurization control valve rod (29)，Supercharger control valve oil pocket (2) is connected with pressurised oil draining oil circuit (27) by the upper sealing cone of pressurization control valve rod (29)，Pressurization control valve base (26) has supercharger control valve drain tap (37)，Charged piston (34) is installed in pressurization control valve base (26) lower end，Charged piston epicoele (36) is formed between pressurization control valve base (26) and charged piston (34)，Charged piston epicoele (36) connects with supercharger control valve oil pocket (2)，Charged piston back-moving spring chamber (31) is set between pressurizer shell (38) and charged piston (34) outer end，It is internal that charged piston back-moving spring (35) is arranged on charged piston back-moving spring chamber (31)，Charged piston cavity of resorption (25) is set between pressurizer shell (38) and charged piston (34) lower end，Charged piston cavity of resorption (25) connection air inlet (4) and pressurized combustion gases outlet (24)，Pressurized combustion gases outlet (24) connects with inlet channel II (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111249.9A CN105781796B (en) | 2016-02-29 | 2016-02-29 | Electromagnetism and supercharging piezoelectricity combination gas gas spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111249.9A CN105781796B (en) | 2016-02-29 | 2016-02-29 | Electromagnetism and supercharging piezoelectricity combination gas gas spraying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105781796A true CN105781796A (en) | 2016-07-20 |
| CN105781796B CN105781796B (en) | 2018-01-19 |
Family
ID=56403126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610111249.9A Active CN105781796B (en) | 2016-02-29 | 2016-02-29 | Electromagnetism and supercharging piezoelectricity combination gas gas spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781796B (en) |
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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105781796B (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508082A (en) | Pressurized leakage-free electromagnetically-controlled gas injection device | |
| CN105351130B (en) | It is pressurized No leakage voltage control standard fuel gas ejecting device | |
| CN105756811B (en) | Combined type piezoelectricity and supercharging electromagnetism fuel gas ejecting device | |
| CN205779392U (en) | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type | |
| CN205206998U (en) | Electromagnetic control of leakage formula fuel gas jetting device is not had in pressure boost | |
| CN105351115B (en) | No leakage voltage control standard fuel gas ejecting device | |
| CN105756830B (en) | Combined mechanical oil spout-supercharging electromagnetism jet hybrid fuel jet device | |
| CN105756825B (en) | Combined electromagnetic oil spout is pressurized piezoelectricity jet hybrid fuel jet device | |
| CN105756820B (en) | Combined type is pressurized the non pressurized piezoelectricity jet hybrid fuel jet device of electromagnetic fuel injection | |
| CN205714518U (en) | The double piezoelectricity hybrid fuel jet device of the non pressurized fuel oil-pressurized combustion gases of combination type | |
| CN204851506U (en) | A split type automatically controlled monoblock pump for diesel engine | |
| CN205206999U (en) | There is not piezoelectric control of leakage formula fuel gas jetting device | |
| CN105736186B (en) | It is pressurized electromagnetism and supercharging piezoelectricity combination gas gas spraying device | |
| CN105756821A (en) | Combined non-pressurized fuel oil and pressurized fuel gas dual piezoelectric mixed fuel injection device | |
| CN105781796A (en) | Electromagnetic and pressurization piezoelectric combined fuel gas injection device | |
| CN105673257A (en) | Pressurization and non-pressurization combined type dual piezoelectric fuel gas injection device | |
| CN205207029U (en) | Piezoelectric control of leakage formula fuel gas jetting device is not had in pressure boost | |
| CN205779394U (en) | Combination type piezoelectric fuel injection supercharging electromagnetism jet hybrid fuel jet device | |
| CN205779395U (en) | Combined electromagnetic oil spout supercharging piezoelectricity jet hybrid fuel jet device | |
| CN205714521U (en) | Combined mechanical oil spout-supercharging piezoelectricity jet hybrid fuel jet device | |
| CN205714519U (en) | Combined double-pressure electricity hybrid fuel jet device | |
| CN205908402U (en) | Modular oil spout of pressure boost electromagnetism jet -propelled fuel injection apparatus that mixes of non -supercharged piezoelectricity | |
| CN105756829B (en) | Combined mechanical oil spout is pressurized piezoelectricity jet hybrid fuel jet device | |
| CN205714523U (en) | Combined mechanical oil spout-piezoelectricity jet hybrid fuel jet device | |
| CN206280178U (en) | Combined electromagnetic oil spout piezoelectricity jet hybrid fuel jet device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |