CN105697196A - Combined supercharging and non-supercharging double solenoid fuel gas injection device - Google Patents
Combined supercharging and non-supercharging double solenoid fuel gas injection device Download PDFInfo
- Publication number
- CN105697196A CN105697196A CN201610111282.1A CN201610111282A CN105697196A CN 105697196 A CN105697196 A CN 105697196A CN 201610111282 A CN201610111282 A CN 201610111282A CN 105697196 A CN105697196 A CN 105697196A
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- electromagnetic valve
- oil
- piston
- 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
-
- 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 a combined supercharging and non-supercharging double solenoid fuel gas injection device. The device comprises a supercharging part, a double solenoid valve part, a double control piston part, a double needle valve nozzle part and an injection device shell, wherein the double solenoid valve part, the double control piston part and the double needle valve nozzle part are arranged in the injection device shell from top to bottom in sequence; and the supercharging part is located above the injection device shell. One path of fuel gas flow passes through the supercharging part and then flows into nozzles, and the other path of fuel gas flow directly flows into the nozzles. The processes of fuel gas supercharging and fuel gas injection of the two nozzles are controlled by three solenoid valves correspondingly, and the device has the characteristics of being rapid in response and capable of accurately controlling the fuel gas injection amount. The nozzles with supercharging pistons can be randomly switched between the supercharging mode and the non-supercharging mode, so that the requirements of engines for fuel gas injection pressure under different working conditions are met. By adopting the device, variable flow, mixed pressure and variable pressure fuel gas injection can be realized, the fuel gas injection pressure can be adjusted in a working cycle, and the requirements of the engines and series engines for power under the different working conditions are met.
Description
Technical field
The present invention relates to the fuel gas ejecting device of a kind of dual fuel engine。
Background technology
Along with the increasingly stringent constantly consumed with engine exhaust regulation of Fossil fuel, the development of electromotor is faced with the dual-pressure of energy crisis and problem of environmental pollution, and adopting alternative fuel is the effective means simultaneously solving energy problem and problem of environmental pollution。Natural gas, oil gas etc., with its aboundresources, the advantage such as cheap, combustion cleaning, calorific value are big, become the main substitute fuel of current internal combustion engine。
Current in-cylinder direct-jet gas injection system, high-speed electromagnetic valve mainly through being internally integrated controls the motion of needle-valve thus realizing the open and close of fuel gas injection valve, fuel gas injection timing, jet amount can be controlled, there is good effects of energy saving and emission reduction, but there are some problems in it: one, electromotor power per cylinder coverage is big, engine power is mated limited, it is impossible to meet electromotor power under different operating modes and seriation engine power demand only with one-jet air jet system；They are two years old；Single high-speed electromagnetic valve only has two kinds of duties of on an off, it is impossible to the multi-mode completing fuel gas injection controls；Its three, in order to improve combustion gas mixing degree, generally improve fuel gas injection pressure, it is adjustable that existing fuel gas ejecting device cannot realize whiff pressure in a cycle of operation；Its four, along with the motion of needle-valve, combustion gas upwards leaks along pintle nozzle match-ing parts gap, and leakage combustion gas enters and controls chamber and cause that fuel gas injection pressure and injection rate reduce, and has a strong impact on air jet system job stability。
Summary of the invention
Present invention aim at providing one can mate broad power band electromotor, without the oily combination type supercharging without static leakage of gas leakage and control and non pressurized pair of electromagnetism fuel gas ejecting device。
The object of the present invention is achieved like this:
Including compression portion, dual-coil electromagnetic valve part, double control piston portion, crosspointer valve nozzle part and injection apparatus housing；Injection apparatus housing has a high voltage control oil-in and two low pressure drain taps；Compression portion includes electromagnetic valve, charged piston, charged piston set, piston reset spring and intake valve；Dual-coil electromagnetic valve part includes electromagnetic valve I, electromagnetic valve II, electromagnetic valve body, electromagnetic valve spring base and electromagnetic valve sealed base, electromagnetic valve I is identical with the structure of electromagnetic valve II, electromagnetic valve I and electromagnetic valve II symmetrical and two electromagnetic valves in fuel gas ejecting device share electromagnetic valve body, electromagnetic valve spring base and electromagnetic valve sealed base, form the first electromagnetism valve pocket, the second electromagnetism valve pocket between electromagnetic valve body and electromagnetic valve spring base, between electromagnetic valve spring base and electromagnetic valve sealed base, form the first groove cavity, the second groove cavity；Double control piston portion includes piston bush, first piston, first piston control chamber, the first needle control chamber, the second needle control chamber, the second piston and the second piston control that chamber, first piston and the second piston structure be identical and a shared piston bush；Crosspointer valve nozzle part includes that the first needle-valve, the second needle-valve, needle-valve base, nozzle cage, first jet seal band and second nozzle seal band, the first needle-valve and the second needle valve structure be identical and a shared needle-valve base；Dual-coil electromagnetic valve part, double control piston portion, crosspointer valve nozzle part are sequentially arranged from top to bottom in injection apparatus housing, and compression portion is positioned at above injection apparatus body。
The present invention can also include:
1, the electromagnetic valve of compression portion includes electromagnetic valve body, electric magnet, coil, electromagnetic valve valve rod, armature, locating snap ring, electromagnetic valve spring and baffle plate, coil and electric magnet are arranged in electromagnetic valve body, armature is positioned at electric magnet right, one end of electromagnetic valve valve rod is stuck on armature by locating snap ring, the other end is pressed on baffle plate under spring force, electromagnetic valve valve rod has annular oil band, during solenoid valves, valve rod is moved to the left, annular oil band connection oil input channel and servo oil pocket, servo oil enters servo oil pocket；During electromagnetic valve power-off, electromagnetic valve valve rod withstands on right-hand apron, and annular oil band connects servo oil pocket and oil-out, and servo oil flows to low pressure drain tap。
2, charged piston and charged piston set are mating plates, and fluted in the middle of charged piston set, charged piston is arranged in described groove, and charged piston microcephaly and piston inner room form band, form an oil pocket between charged piston major part and piston bush groove。
3, the first electromagnetic valve valve rod of dual-coil electromagnetic valve part there is the first hydraulic oil endless belt, second electromagnetic valve valve rod has the second hydraulic oil endless belt, electromagnetic valve sealed base leaves four draining oil ducts, oil duct connection first piston controls chamber and the first hydraulic oil endless belt, oil duct connects the second piston and controls chamber and the second hydraulic oil endless belt, two other bar oil duct connect two electromagnetic valve valve rod lower cavity and the second low pressure drain tap respectively；Have four draining roads, oil duct to connect the first groove cavity and the first electromagnetism valve pocket on electromagnetic valve spring base, oil duct connects the second groove cavity and the second electromagnetism valve pocket, two other oil duct are respectively communicated with the first electromagnetism valve pocket and the second electromagnetism valve pocket and annular oil groove, two-way draining oil circuit converges at annular oil groove place after flowing separately through electromagnetic valve I and electromagnetic valve II valve pocket, annular oil groove and the connection of the first low pressure drain tap, two-way draining oil circuit shares a first low pressure drain tap。
4, the first needle-valve of crosspointer valve nozzle part, the second needle-valve share a hydraulic oil entrance, annular oil groove is had between injection apparatus body and piston bush, hydraulic oil enters annular oil groove and is divided into two-way, and a road hydraulic oil flows into first piston by oil duct and controls chamber, the first needle control chamber and the first seal band；Another road hydraulic oil flows into the second piston by oil duct and controls chamber, the second needle control chamber and the second seal band。
5, two-way air inlet gas circuit is included, first needle-valve, the second needle-valve fuel gas inlet different, the fuel gas inlet of the first needle-valve is at compression portion, combustion gas passes sequentially through the gentle concentrated flow of air flue on charged piston set, electromagnet, electromagnetic valve spring base, valve rod base, piston bush, needle-valve base and enters the first needle-valve combustion gas chamber after entering pumping chamber；The fuel gas inlet of the second needle-valve is on injection apparatus body, and combustion gas passes sequentially through the gentle concentrated flow of air flue on piston bush and needle-valve base and enters the second needle-valve combustion gas chamber。
6, the first needle-valve and the second needle-valve there is annular step, below annular step, between the first needle-valve and injection apparatus body, form the first needle control chamber；The second needle control chamber is formed between second needle-valve and injection apparatus body。
7, the first needle-valve and the second needle-valve are arranged in needle-valve base, the first needle-valve combustion gas chamber is formed between first needle-valve and needle-valve base, the second needle-valve combustion gas chamber is formed between second needle-valve and needle-valve base, above the first needle-valve combustion gas chamber, the second needle-valve combustion gas chamber, annular sealing strip is all had between needle-valve and needle-valve base, needle-valve base has annular oil groove and oil duct, part is controlled oil and introduces annular sealing strip。
The invention provides one and can mate broad power band electromotor, without the oily combination gas gas spraying device without static leakage of gas leakage and control, two electromagnetic valves are adopted separately to control two jet, one of them nozzle is with charged piston, this device can realize variable-flow, mixed pressure power and pressure changeable jet, fuel gas injection pressure adjustable in a cycle of operation, meets electromotor power under different operating modes and seriation engine power demand。
The combination type supercharging of the present invention-non pressurized pair electromagnetism fuel gas ejecting device is mainly made up of compression portion 1, dual-coil electromagnetic valve part 2, double control piston portion 5, crosspointer valve nozzle part 6 and injection apparatus body 8。Compression portion 1 mainly includes electromagnetic valve A, intake valve B, charged piston spring 17, charged piston set 23, charged piston 24, solenoid valve seat 25 etc.。Wherein, on the valve rod 13 of electromagnetic valve A, design has annular oil band 12, and on solenoid valve seat 25, design has servo oil oil input channel 32, servo oil draining road 10。When electromagnetic valve A is not powered on, annular oil band 12 connection draining road 10 and servo oil pocket 26；During electromagnetic valve A energising, annular oil band 12 connection oil input channel 32 and servo oil pocket 26。Dual-coil electromagnetic valve part 2 mainly includes electromagnetic valve I, electromagnetic valve II, electromagnetic valve body 33, electromagnetic valve spring base 36, valve stem seal base 37 etc., electromagnetic valve I is all identical with mounting means with electromagnetic valve II structure, symmetrical and shared electromagnetic valve body 33, electromagnetic valve spring base 36 and valve stem seal base 37 in injection apparatus, adopt alignment pin location between each structure。On the valve rod 45 of electromagnetic valve I, design has the first hydraulic oil endless belt 39。Double control piston portion 5 mainly includes first piston and controls chamber 56, first piston the 53, first needle control chamber the 52, second needle control chamber 51, piston bush the 50, second piston the 49, second piston control chamber 47。Crosspointer valve nozzle part 6 is positioned at below injection apparatus body 8, mainly includes nozzle I, nozzle II, needle-valve base 59, nozzle cage 57 etc.。Nozzle I is all identical with nozzle II structure, mounting means, and shares a needle-valve base 59, symmetrical in injection apparatus。Nozzle I is made up of first needle valve spring seat the 66, first needle valve spring the 65, first needle-valve the 64, first needle-valve seal band the 63, first needle-valve combustion gas chamber the 62, first spray orifice 61。Between first needle-valve 64 and needle-valve base 59, design has the first needle-valve seal band 63, controls oil by oil duct introducing portion and seals combustion gas to the first needle-valve seal band 63。Enter the combustion gas of pumping chamber 22 from intake valve B, enter the first needle-valve combustion gas chamber 62 by air flue；Flow into the combustion gas of air jet system from the fuel gas inlet 9 injection apparatus body 8, air flue enter the second needle-valve combustion gas chamber 60。
The combination type supercharging of the present invention-non pressurized pair electromagnetism fuel gas ejecting device adopts crosspointer valve nozzle jet, and one of them nozzle is with charged piston, and a nozzle is without charged piston。Two nozzles and charged piston are controlled by three independent electromagnetic valves respectively, and jet and pressurization are separated from each other。During compression portion electromagnetic valve power-off, combustion gas is not pressurized, pressurized nozzle injection low-pressure fuel gas；When boost electromagnetic valve powers on, combustion gas is pressurized, and pressurized nozzle injection high-pressure gas, pressurized nozzle can switch flexibly between supercharging or no charge mode, it is achieved high pressure or low-pressure fuel injection。When one nozzle electromagnetic valve works independently, only one of which jet, meet the engine low load control accuracy requirement to low discharge jet；When two nozzle electromagnetic valves work simultaneously, two nozzle jets simultaneously, meet the high engine load demand to jet amount and jet stability；The action of one nozzle electromagnetic valve elder generation, after a nozzle electromagnetic valve during action, it may be achieved two nozzle order jets, thus realize first slow after anxious jet rule, jet rule is flexible, meets electromotor power under different operating modes and seriation engine power demand。By adjusting three electromagnetic valve work states and job order, injection apparatus can realize nine kinds of mode of operations such as low discharge low pressure jet, small flow high pressure jet, low discharge pressure changeable jet, big flow low pressure jet, big flow mixed pressure jet, big flow pressure changeable jet, variable-flow low pressure jet, variable-flow mixed pressure jet, variable-flow pressure changeable jet, and in a cycle of operation, air jet system can realize whiff pressure, jet amount is adjustable。
This device also has following beneficial effect simultaneously: adopts long band and big oil pocket to prevent gas leakage between charged piston and charged piston set couple, improves the stability of air jet system work；Control oil draining oil circuit and flow through electromagnetic valve body top, walk heat to reduce electromagnetic valve portion temperature by draining tape loop, it is ensured that the reliability and stability of electromagnetic valve work；Two are designed with seal band between needle-valve and needle seating, introducing portion controls oil and seals combustion gas as Seal Oil, gas leakage can be effectively prevented, the Seal Oil controlling oil and needle-valve place simultaneously controlling intracavity adopts same oil, oil pressure is equal, can be effectively ensured control oil, Seal Oil without static leakage。
Accompanying drawing explanation
Fig. 1 (a) is the overall structure schematic diagram of non pressurized pair of electromagnetism fuel gas ejecting device of combination type supercharging of the present invention, and Fig. 1 (b) is the A-A sectional view of Fig. 1 (a)。
Fig. 2 (a) is the compression portion structural representation of non pressurized pair of electromagnetism fuel gas ejecting device of combination type supercharging of the present invention, Fig. 2 (b) is the A portion enlarged drawing of Fig. 2 (a), and Fig. 2 (c) is the B portion enlarged drawing of Fig. 2 (a)。
Fig. 3 is the dual-coil electromagnetic valve part-structure schematic diagram of non pressurized pair of electromagnetism fuel gas ejecting device of combination type supercharging of the present invention。
Fig. 4 (a) is the double control piston portion structural representation of non pressurized pair of electromagnetism fuel gas ejecting device of combination type supercharging of the present invention, and Fig. 4 (b) is the B-B sectional view of Fig. 4 (a)。
Fig. 5 is the crosspointer valve nozzle part-structure schematic diagram of non pressurized pair of electromagnetism fuel gas ejecting device of combination type supercharging of the present invention。
Detailed description of the invention
Below in conjunction with legend, the present invention is described in more detail:
In conjunction with Fig. 1 (a)-Fig. 1 (b), the double; two electromagnetism fuel gas ejecting device of the combination type supercharging of the present invention is mainly made up of compression portion 1, dual-coil electromagnetic valve part 2, double control piston portion 5, crosspointer valve nozzle part 6, injection apparatus body 8。Injection apparatus body 8 has first low pressure drain tap the 3, second low pressure drain tap 4, controls oil-in 7, fuel gas inlet 9 etc.。Compression portion 1 is positioned at above injection apparatus body 8, and the two employing is threaded。
In conjunction with Fig. 2 (a)-Fig. 2 (c), compression portion 1 mainly includes electromagnetic valve A, intake valve B, charged piston spring 17, charged piston set 23, charged piston 24, solenoid valve seat 25 etc.。Wherein, electromagnetic valve A is made up of electromagnetic valve spring A11, electromagnetic valve valve rod A13, spring washer 14, baffle plate 15, armature 27, electromagnetic valve body A28, locating snap ring 29, coil 30, electric magnet A31 etc.。Intake valve B mainly includes inlet valve seat 19, inlet valve spindle 20, inlet valve spring 21 etc.。On the electromagnetic valve valve rod A13 of electromagnetic valve A, design has annular oil band 12, and on solenoid valve seat 25, design has servo oil oil input channel 32, servo oil draining road 10。Electromagnetic valve valve rod A13 one end is fixed on electromagnetic valve armature 27 by locating snap ring 29, it is possible to armature 27 side-to-side movement, the other end runs through solenoid valve seat 25, is pressed on baffle plate 15 under the effect of electromagnetic valve spring 11 pretightning force。The lift of electromagnetism valve rod A13 can be played position-limiting action by solenoid valve seat 25, and design has oil duct on it, can leader servo oil flow though solenoid valve A, play cooling electromagnetic valve A and reduce the effect of shock and vibration of electromagnetic valve armature 27 and electromagnetism valve rod A13 side-to-side movement。Form servo oil pocket 26 above charged piston 24 major part between compression face and piston bush 23, solenoid valve seat 25, below charged piston 24 microcephaly, between compression face and piston bush 23, form pumping chamber 22。Intake valve B is check valve, and its back-moving spring 21 pretightning force is less, opens pressure low, and when combustion gas enters intake valve B, valve rod 20 is opened under combustion gas effect, and combustion gas enters pumping chamber 22；When charged piston 24 is descending, when in pumping chamber 22, gaseous-pressure raises, intake valve B closes。Charged piston 24 and charged piston set 23 are a pair precision pair, and fit clearance is little and contact length big, can effectively prevent from altering in the combustion gas in pumping chamber 22, and prevent the fuel leakage in servo oil pocket 26；A big cavity 16 is formed between the groove of charged piston 24 major part and piston bush 23, even if having Some gases, fuel leakage to enter cavity 16, it is hindered to interpenetrate further at intracavity oil, gas mixing energy, the oil film that charged piston 24 surface is formed is in dynamic balance state in piston movement process, can prevent gas leakage further。
In conjunction with Fig. 3, dual-coil electromagnetic valve part 2 is positioned at the injection apparatus body 8 below compression portion 1, mainly include electromagnetic valve I, electromagnetic valve II, electromagnetic valve body 33, electromagnetic valve spring base 36, valve stem seal base 37 etc., electromagnetic valve I is all identical with mounting means with electromagnetic valve II structure, symmetrical and shared electromagnetic valve body 33, electromagnetic valve spring base 36 and valve stem seal base 37 in injection apparatus, adopt alignment pin location between each structure。The first electromagnetism valve pocket and the second electromagnetism valve pocket is formed between electromagnetic valve body 33 and electromagnetic valve spring base 36；The first groove cavity and the second groove cavity is formed between electromagnetic valve spring base 36 and valve stem seal base 37。Electromagnetic valve I mainly includes first electric magnet the 46, first valve rod the 45, first armature the 44, first electromagnetic valve spring 40 etc., and on the first electromagnetic valve valve rod 45, design has the first hydraulic oil endless belt 39。First electric magnet 46 is arranged in the first electromagnetism valve pocket of electromagnetic valve body 33, first armature 44 is positioned at below the first electric magnet 46, one end of first valve rod 45 is stuck on the first armature 44 by locating snap ring, the other end runs through the electromagnetic valve spring base 36 below the first armature 44, is pressed on valve stem seal base 37 and closes the first hydraulic oil endless belt 39。On electromagnetic valve spring base 36, design has oil duct 34, oil duct 35, oil duct 42, oil duct 43 and annular oil groove 41, and annular oil groove 41 connects oil duct 42 and oil duct 35, and connects the first low pressure drain tap 2。
In conjunction with Fig. 4 (a)-Fig. 4 (b), double control piston portion 5 mainly includes first piston and controls chamber 56, first piston the 55, first needle control chamber the 52, second needle control chamber 51, piston bush the 50, second piston the 48, second piston control chamber 47。Flowing into the high voltage control oil of injection apparatus and flow through annular oil groove 55 from controlling oil-in 7 and be divided into two-way, annular oil groove 55 top view is such as shown in Fig. 4 (b), and a road flows into oil duct 54, then flows into first piston and control chamber 56 and the first needle control chamber 52；Another road flows into oil duct 49, then flows into the second piston control chamber 47 and the second needle control chamber 51。During electromagnetic valve I power-off, under the first electromagnetic valve spring 40 effect, the first valve rod 45 is pressed on electromagnetic valve spring base 37, turns off the first hydraulic oil endless belt 39。When electromagnetic valve I is energized, the first valve rod 45 lifts, and the first hydraulic oil endless belt 39 is opened, and first piston controls chamber 56 inner high voltage oil and flows through the first groove cavity, the first electromagnetism valve pocket successively by oil duct, then flows to the first low pressure drain tap 2 from oil duct 42。In like manner, when electromagnetic valve II is energized, the second piston controls chamber 47 inner high voltage oil and flows through the second groove cavity, the second electromagnetism valve pocket successively by oil duct, then flows to the first low pressure drain tap 2 from oil duct 35。Draining oil circuit flows through electromagnetic valve, takes away dual-coil electromagnetic valve heat under fuel flow effect, plays the effect of cooling electromagnetic valve, and reduces the shock and vibration that electromagnetic valve armature moves up and down, thus improving the stability of dual-coil electromagnetic valve work。
In conjunction with Fig. 5, crosspointer valve nozzle part 6 mainly includes nozzle I, nozzle II, needle-valve base 59, nozzle cage 57 etc.。Nozzle I and nozzle II share a needle-valve base 59, and two nozzle arrangements, mounting means are all identical, and symmetrical in injection apparatus。Nozzle I is made up of first needle valve spring seat the 66, first needle valve spring the 65, first needle-valve the 64, first needle-valve seal band the 63, first needle-valve combustion gas chamber the 62, first spray orifice 68。On first needle-valve 64, design has annular step, below annular step, forms the first needle control chamber 52 between the first needle-valve 64 and injection apparatus body 8。Forming needle-valve combustion gas chamber 62 between first needle-valve 64 and needle-valve base 59, above the first needle-valve combustion gas chamber 62, between the first needle-valve 64 and needle-valve base 59, design has the first needle-valve seal band 63。When electromagnetic valve I does not power on, it is equal that first piston controls in chamber 56 oil pressure in oil pressure and the first needle control chamber 52, and the first needle-valve 64 is pressed on needle-valve base 59 under the pretightning force effect of the first needle valve spring 65 and closes the first spray orifice 68。Have gas inlet passage and air inlet duct in the middle of needle-valve base 59, high-pressure gas is introduced the first needle-valve combustion gas chamber 62 and the second needle-valve combustion gas chamber 60, to meet air jet system air inlet requirement；Both sides have oil-feed tank and oil input channel, part is controlled oil and introduces the first needle-valve Seal Oil endless belt 63 and the second needle-valve Seal Oil endless belt 58。One tunnel combustion gas enters pumping chamber 22 from the air inlet 18 compression portion 2, enters the first needle-valve combustion gas chamber 62 then through air flue；Another road combustion gas enters from the fuel gas inlet 9 injection apparatus body, and fuel gas inlet 9 place top view is such as shown in Fig. 1 (b), and combustion gas enters the second needle-valve combustion gas chamber 60 by air flue。Adopt threaded between needle-valve set 57 and injection apparatus body 8 and design and have sealing ring, it is prevented that high temperature in cylinder, high pressure combustion gas enter injection apparatus crosspointer valve nozzle part。
The injection combustion gas of the combination type supercharging of the present invention-non pressurized pair electromagnetic injection device, what the first needle-valve combustion gas chamber 61 and the second needle-valve combustion gas chamber 60 place introduced is all combustion gas, lift at two needle-valves and take a seat in process, combustion gas is easily along with the motion of valve rod upwards leaks, when the combustion gas of leakage enters the first needle control chamber 52 and the second needle control chamber 51, owing to the compressibility of combustion gas can have a strong impact on the jet characteristic of fuel gas ejecting device。In order to solve this problem, the crosspointer valve fuel gas ejecting device of the present invention has first seal band the 63, second seal band 58 between two needle-valves and needle-valve base 69, controls oil seal combustion gas by oil duct introducing portion, can be effectively prevented gas leakage。Additionally, the Seal Oil controlled in oil, the first seal band 63 in first needle control chamber 52, the Seal Oil controlled in oil and the second seal band 58 in the second needle control chamber 51 all adopt same oil, the two upper and lower oil pressure of needle-valve are all equal, can be effectively ensured control oil, Seal Oil without static leakage。
During electromotor work, control unit gathers the input signal of sensor, drives three electromagnetic valve works, thus controlling combustion gas pressurization and nozzle I, nozzle II injection combustion gas respectively。When electromagnetic valve A power-off, electromagnetic valve valve rod 13 withstands on right-hand apron 15 under the effect of electromagnetic valve spring 14, now, annular oil band 12 connection draining road 10 and servo oil pocket 26, as shown in Fig. 2 (b), in servo oil pocket 26, servo oil flows to low pressure drain tap, servo oil pocket 26 pressure reduces, and charged piston 24 is up under the effect of back-moving spring 17, and in pumping chamber 24, gaseous-pressure declines, inlet valve spindle 20 is backed down in combustion gas, starts air inlet；During electromagnetic valve A energising, electric magnet 31 attracts armature 27, and armature 27 band moving electromagnetic valve valve rod 13 is to left movement, now, annular oil band 12 connection oil input channel 32 and servo oil pocket 26, as shown in Fig. 2 (c), servo oil enters servo oil pocket 26, and servo oil pocket 26 pressure raises, promote charged piston 24 descending, in pumping chamber 22, pressure just starts to raise, and namely intake valve B closes, and charged piston 24 continues descending to combustion gas supercharging in pumping chamber 22。In pumping chamber 22, combustion gas enters the first needle-valve combustion gas chamber 62 by air flue。During electromagnetic valve I power-off, first valve rod 45 is pressed on electromagnetic valve spring base 37 under the first electromagnetic valve spring 40 effect, turn off the first hydraulic oil endless belt 39, it is equal that first piston controls oil pressure in chamber 56 and the first needle control chamber 52, first needle-valve 64 is pressed on needle-valve base 59 under the first needle valve spring 65 effect, closing the first spray orifice 61, nozzle I is jet not；When electromagnetic valve I is energized, first valve rod 45 lifts, first hydraulic oil endless belt 39 is opened, first piston control chamber 56 inner high voltage oil passes sequentially through oil duct and flows to the first low pressure drain tap 2, first piston controls oil pressure in chamber 56 and reduces, first needle-valve 64 lifts rapidly under the first needle control chamber 52 inner high voltage oil effect, and the first spray orifice 61 is opened, and nozzle I starts to spray high pressure or low-pressure fuel gas。In like manner, combustion gas enters the second needle-valve combustion gas chamber 60 from the fuel gas inlet 9 injection apparatus body by air flue。During electromagnetic valve II power-off, it is equal that the second piston controls oil pressure in chamber 47 and the second needle control chamber 51, and the second needle-valve closes the second spray orifice, and nozzle II is jet not；When electromagnetic valve II is energized, the second valve rod lifts, and the second piston controls chamber 47 inner high voltage oil and flows to the first low pressure drain tap 2 by oil duct, and the second needle-valve lifts rapidly opens the second spray orifice, and nozzle II starts to spray low-pressure fuel gas。If electromagnetic valve A, electromagnetic valve I and electromagnetic valve II work simultaneously, then nozzle I injection high-pressure gas, nozzle II spray low-pressure fuel gas, and injection apparatus realizes big flow mixed pressure power jet。Operating mode residing for electromotor, by adjusting three electromagnetic valve work states and job order, injection apparatus can realize nine kinds of mode of operations such as low discharge low pressure jet, small flow high pressure jet, low discharge pressure changeable jet, big flow low pressure jet, big flow mixed pressure jet, big flow pressure changeable jet, variable-flow low pressure jet, variable-flow mixed pressure jet, variable-flow pressure changeable jet。By above-mentioned work process it can be seen that the jet process of combination type supercharging-non pressurized pair of electromagnetism fuel gas ejecting device is controlled by three electromagnetic valves, there is response quickly, the feature that jet amount is accurately controlled。According to control signal, compression portion electromagnetic valve power-off, combustion gas is not pressurized, and during solenoid valves, combustion gas is pressurized, and nozzle I expulsion pressure improves, and nozzle I can realize combustion gas supercharging or no charge mode any switching laws。Adopt two electromagnetic valves independently to control the fuel gas injection process of two nozzles, during only one of which jet, meet the engine low load control accuracy requirement to low discharge jet；During two nozzle jets simultaneously, meet the high engine load demand to jet amount and jet stability；During two nozzle jets successively, it may be achieved first slow rear anxious jet rule, jet rule is flexible, meets electromotor power under different operating modes。Compression portion adopts the long band of couple and big oil pocket to prevent gas leakage, nozzle segment adopts fuel sealing combustion gas all can be effectively prevented gas leakage, additionally, control oil and the oily fuel oil static leakage that can effectively prevent from controlling chamber and seal band of Seal Oil employing same。Therefore, the present invention can make electromotor meet the emission regulation demands of increasingly stringent, is effectively improved its dynamic property, economy and reliability。
Claims (8)
1. combination type supercharging and a non pressurized pair of electromagnetism fuel gas ejecting device, is characterized in that: include compression portion, dual-coil electromagnetic valve part, double control piston portion, crosspointer valve nozzle part and injection apparatus housing；Injection apparatus housing has a high voltage control oil-in and two low pressure drain taps；Compression portion includes electromagnetic valve, charged piston, charged piston set, piston reset spring and intake valve；Dual-coil electromagnetic valve part includes electromagnetic valve I, electromagnetic valve II, electromagnetic valve body, electromagnetic valve spring base and electromagnetic valve sealed base, electromagnetic valve I is identical with the structure of electromagnetic valve II, electromagnetic valve I and electromagnetic valve II symmetrical and two electromagnetic valves in fuel gas ejecting device share electromagnetic valve body, electromagnetic valve spring base and electromagnetic valve sealed base, form the first electromagnetism valve pocket, the second electromagnetism valve pocket between electromagnetic valve body and electromagnetic valve spring base, between electromagnetic valve spring base and electromagnetic valve sealed base, form the first groove cavity, the second groove cavity；Double control piston portion includes piston bush, first piston, first piston control chamber, the first needle control chamber, the second needle control chamber, the second piston and the second piston control that chamber, first piston and the second piston structure be identical and a shared piston bush；Crosspointer valve nozzle part includes that the first needle-valve, the second needle-valve, needle-valve base, nozzle cage, first jet seal band and second nozzle seal band, the first needle-valve and the second needle valve structure be identical and a shared needle-valve base；Dual-coil electromagnetic valve part, double control piston portion, crosspointer valve nozzle part are sequentially arranged from top to bottom in injection apparatus housing, and compression portion is positioned at above injection apparatus body。
2. combination type supercharging according to claim 1 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: the electromagnetic valve of compression portion includes electromagnetic valve body, electric magnet, coil, electromagnetic valve valve rod, armature, locating snap ring, electromagnetic valve spring and baffle plate, coil and electric magnet are arranged in electromagnetic valve body, armature is positioned at electric magnet right, one end of electromagnetic valve valve rod is stuck on armature by locating snap ring, the other end is pressed on baffle plate under spring force, electromagnetic valve valve rod has annular oil band, during solenoid valves, valve rod is moved to the left, annular oil band connection oil input channel and servo oil pocket, servo oil enters servo oil pocket；During electromagnetic valve power-off, electromagnetic valve valve rod withstands on right-hand apron, and annular oil band connects servo oil pocket and oil-out, and servo oil flows to low pressure drain tap。
3. combination type supercharging according to claim 2 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: charged piston and charged piston set are mating plates, charged piston set is middle fluted, charged piston is arranged in described groove, charged piston microcephaly and piston inner room form band, form an oil pocket between charged piston major part and piston bush groove。
4. combination type supercharging according to claim 3 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: the first electromagnetic valve valve rod of dual-coil electromagnetic valve part has the first hydraulic oil endless belt, second electromagnetic valve valve rod has the second hydraulic oil endless belt, electromagnetic valve sealed base leaves four draining oil ducts, oil duct connection first piston controls chamber and the first hydraulic oil endless belt, oil duct connects the second piston and controls chamber and the second hydraulic oil endless belt, two other bar oil duct connect two electromagnetic valve valve rod lower cavity and the second low pressure drain tap respectively；Have four draining roads, oil duct to connect the first groove cavity and the first electromagnetism valve pocket on electromagnetic valve spring base, oil duct connects the second groove cavity and the second electromagnetism valve pocket, two other oil duct are respectively communicated with the first electromagnetism valve pocket and the second electromagnetism valve pocket and annular oil groove, two-way draining oil circuit converges at annular oil groove place after flowing separately through electromagnetic valve I and electromagnetic valve II valve pocket, annular oil groove and the connection of the first low pressure drain tap, two-way draining oil circuit shares a first low pressure drain tap。
5. combination type supercharging according to claim 4 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: the first needle-valve of crosspointer valve nozzle part, the second needle-valve share a hydraulic oil entrance, annular oil groove is had between injection apparatus body and piston bush, hydraulic oil enters annular oil groove and is divided into two-way, and a road hydraulic oil flows into first piston by oil duct and controls chamber, the first needle control chamber and the first seal band；Another road hydraulic oil flows into the second piston by oil duct and controls chamber, the second needle control chamber and the second seal band。
6. combination type supercharging according to claim 5 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: include two-way air inlet gas circuit, first needle-valve, the second needle-valve fuel gas inlet different, the fuel gas inlet of the first needle-valve is at compression portion, combustion gas passes sequentially through the gentle concentrated flow of air flue on charged piston set, electromagnet, electromagnetic valve spring base, valve rod base, piston bush, needle-valve base and enters the first needle-valve combustion gas chamber after entering pumping chamber；The fuel gas inlet of the second needle-valve is on injection apparatus body, and combustion gas passes sequentially through the gentle concentrated flow of air flue on piston bush and needle-valve base and enters the second needle-valve combustion gas chamber。
7. combination type supercharging according to claim 6 and non pressurized pair of electromagnetism fuel gas ejecting device, is characterized in that: the first needle-valve and have annular step on the second needle-valve, forms the first needle control chamber below annular step between the first needle-valve and injection apparatus body；The second needle control chamber is formed between second needle-valve and injection apparatus body。
8. combination type supercharging according to claim 7 and non pressurized pair of electromagnetism fuel gas ejecting device, it is characterized in that: the first needle-valve and the second needle-valve are arranged in needle-valve base, the first needle-valve combustion gas chamber is formed between first needle-valve and needle-valve base, the second needle-valve combustion gas chamber is formed between second needle-valve and needle-valve base, above the first needle-valve combustion gas chamber, the second needle-valve combustion gas chamber, annular sealing strip is all had between needle-valve and needle-valve base, needle-valve base has annular oil groove and oil duct, part is controlled oil and introduces annular sealing strip。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111282.1A CN105697196B (en) | 2016-02-29 | 2016-02-29 | Combined type is pressurized and non pressurized double electromagnetism fuel gas ejecting devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111282.1A CN105697196B (en) | 2016-02-29 | 2016-02-29 | Combined type is pressurized and non pressurized double electromagnetism fuel gas ejecting devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697196A true CN105697196A (en) | 2016-06-22 |
| CN105697196B CN105697196B (en) | 2017-12-19 |
Family
ID=56222729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610111282.1A Active CN105697196B (en) | 2016-02-29 | 2016-02-29 | Combined type is pressurized and non pressurized double electromagnetism fuel gas ejecting devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697196B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682789A (en) * | 2019-11-21 | 2020-01-14 | 诸暨亚目发动机有限公司 | Hybrid power supply equipment |
| CN115163342A (en) * | 2022-07-06 | 2022-10-11 | 一汽解放汽车有限公司 | Ejector and power device |
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 CN201610111282.1A patent/CN105697196B/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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682789A (en) * | 2019-11-21 | 2020-01-14 | 诸暨亚目发动机有限公司 | Hybrid power supply equipment |
| CN110682789B (en) * | 2019-11-21 | 2020-08-14 | 江苏众富智能电气研究院有限公司 | Hybrid power supply equipment |
| CN115163342A (en) * | 2022-07-06 | 2022-10-11 | 一汽解放汽车有限公司 | Ejector and power device |
| CN115163342B (en) * | 2022-07-06 | 2024-01-09 | 一汽解放汽车有限公司 | Injector and power device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697196B (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508082B (en) | It is pressurized No leakage electromagnetic control type fuel gas ejecting device | |
| CN105626316B (en) | The double electromagnetism fuel gas ejecting devices of combined type supercharging | |
| CN104018966B (en) | Pressure accumulation current-limiting type electromagnetic control oil sprayer | |
| CN105756824B (en) | Combined type piezoelectric fuel injection is pressurized electromagnetism jet hybrid fuel jet device | |
| CN105332826B (en) | No leakage electromagnetic control type fuel gas ejecting device | |
| CN115288902B (en) | Low oil return amount double-lift variable oil injection rule electric control oil injector | |
| CN105756811A (en) | Combined piezoelectric and pressurizing electromagnetic fuel gas injection device | |
| CN109404188A (en) | A kind of injector for realizing dual fuel injection | |
| CN111075624B (en) | Oil injection device | |
| CN105697196A (en) | Combined supercharging and non-supercharging double solenoid fuel gas injection device | |
| CN105626317B (en) | The double electromagnetism fuel gas ejecting devices of combined type | |
| CN205206998U (en) | Electromagnetic control of leakage formula fuel gas jetting device is not had in pressure boost | |
| CN105756830B (en) | Combined mechanical oil spout-supercharging electromagnetism jet hybrid fuel jet device | |
| CN205714522U (en) | Combined mechanical oil spout-supercharging electromagnetism jet hybrid fuel jet device | |
| CN205779394U (en) | Combination type piezoelectric fuel injection supercharging electromagnetism jet hybrid fuel jet device | |
| CN205714520U (en) | The double electromagnetism hybrid fuel jet device of combination type | |
| CN205206997U (en) | There is not electromagnetic control of leakage formula fuel gas jetting device | |
| CN105781797B (en) | Electromagnetism and piezoelectricity combination gas gas spraying device | |
| CN205779392U (en) | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type | |
| CN105756826B (en) | Combined electromagnetic oil spout is pressurized electromagnetism jet hybrid fuel jet device | |
| CN105756825B (en) | Combined electromagnetic oil spout is pressurized piezoelectricity jet hybrid fuel jet device | |
| CN205779396U (en) | Combined electromagnetic oil spout supercharging electromagnetism jet hybrid fuel jet device | |
| CN205779391U (en) | The double electromagnetism hybrid fuel jet device of the non pressurized combustion gas of combination type supercharging fuel | |
| CN205779393U (en) | The double supercharging electromagnetism hybrid fuel jet device of combination type | |
| CN105756820A (en) | Combined pressurizing electromagnetic fuel oil injection and non-pressurizing piezoelectric fuel gas injection mixed fuel injection 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 |