CN105781836B - The double electromagnetism hybrid fuel jet devices of the non pressurized combustion gas of combined type supercharging fuel - Google Patents
The double electromagnetism hybrid fuel jet devices of the non pressurized combustion gas of combined type supercharging fuel Download PDFInfo
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- CN105781836B CN105781836B CN201610250350.2A CN201610250350A CN105781836B CN 105781836 B CN105781836 B CN 105781836B CN 201610250350 A CN201610250350 A CN 201610250350A CN 105781836 B CN105781836 B CN 105781836B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
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- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1866—Valve seats or member ends having multiple cones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/44—Valves, e.g. injectors, with valve bodies arranged side-by-side
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
It is an object of the invention to provide the double electromagnetism hybrid fuel jet devices of the non pressurized combustion gas of combined type supercharging fuel, including fuel pressurization part, dual-coil electromagnetic valve part, control section, crosspointer valve nozzle part and injection apparatus housing.The present invention controls the course of injection of combustion gas and fuel oil using two solenoid valves respectively, by varying two electromagnetic valve work states and job order, injection apparatus, which can be realized, only sprays fuel oil or the multiple-working modes such as combustion gas, two kinds of fuel are sprayed at the same time, two kinds of fuel sequencings spray, engine can work under pure fuel oil or oil pilot combustion gas pattern, and reliability is high.Fuel pressurization is realized using charged piston, and pressurization control and Injection Control separate, it is possible to achieve the flexible control of fuel injection characteristic, injection process any switching laws between supercharging and no charge mode, so as to obtain " boot-shaped ", " anxious after first delaying " fuel injection characteristic.
Description
Technical field
The present invention relates to a kind of fuel injection device, specifically dual fuel engine fuel injection device.
Background technology
It is to solve at the same time using alternative fuel as constantly consuming for fossil fuel is increasingly stringent with engine exhaust regulation
The energy shortage and the effective means of problem of environmental pollution that certainly development of engine is faced.Natural gas, oil gas etc. are with its resource
The advantages that abundant, cheap, combustion cleaning, big calorific value, become the main substitute fuel of current internal combustion engine.
The fuel feeding method of dual fuel engine mainly has two kinds at present：One kind is to be introduced into engine in gaseous fuel
It is mixed with the air of suction before cylinder, then certain quantity of fluid fuel is directly sprayed to the near top dead center of combustion chamber, from
And pilot gas fuel, this mode easily cause combustion knock, in addition in engine low load, the combustion gas of premixing is too
It is thin to be unfavorable for burning.Another way is that combustion gas is injected directly into combustion chamber, same to be touched using the liquid fuel of pilot quantity
Gas fuel combustion is sent out, this mode will not cause engine premature detonation, and fuel burns under diffusion combustion mode, burning
Effect is good, but its there is also it is certain the problem of：First, it is complicated in Modern Engine cylinder head, parts are more, how to arrange
Two injectors there are certain difficulty, if in addition install two injectors injection double fuels original diesel engine need to be carried out compared with
Big change, increases device processing and assembling complexity.Second, in order to improve oil, gas mixability, carried frequently with high-pressure pump
High fuel injection pressure, high-pressure pump structure is complicated, is grown from pump end to the transmission pipeline of fuel nozzle, and fuel pressure fluctuation is big.Its
Three, injection apparatus requires height to gas sealing, and with the movement of needle-valve, combustion gas leaks upwards along pintle nozzle match-ing parts gap, leakage
Combustion gas, which enters control chamber, causes fuel gas injection pressure and injection rate to reduce, and seriously affects device job stability.
The content of the invention
It is an object of the invention to provide the combined type increasing that injection process can switch between supercharging or non pressurized both of which
The double electromagnetism hybrid fuel jet devices of compression ignition oil-non pressurized combustion gas.
The object of the present invention is achieved like this：
The double electromagnetism hybrid fuel jet devices of combined type supercharging fuel of the present invention-non pressurized combustion gas, it is characterized in that：Including combustion
Oily compression portion, fuel gas injection part, fuel oil spout part, injection apparatus body, electromagnetism valve pocket, injection apparatus inner cylinder, needle-valve bottom
Seat, fuel pressurization are partially installed on above injection apparatus body, and electromagnetism valve pocket and injection apparatus inner cylinder are installed on injection from top to bottom
In apparatus body, central oil passage is set, needle-valve base is installed on injection by nozzle cage and fills in electromagnetism valve pocket and injection apparatus inner cylinder
Put below body, the needle-valve base includes combustion gas base and fuel oil base；
The fuel pressurization part includes boost electromagnetic valve, charged piston, charged piston set, inlet valve, boost electromagnetic valve
Including boost electromagnetic valve seat, supercharging electromagnet, supercharging armature, boost electromagnetic valve bar, set in boost electromagnetic valve seat servo oil into
Hydraulic fluid port and servo oil drain tap, boost electromagnetic valve bar one end are fixed on supercharging armature by being pressurized locating snap ring, and the other end runs through
Boost electromagnetic valve seat is simultaneously pressed on baffle under the action of the pretightning force for covering boost electromagnetic valve spring thereon, supercharging armature institute
Supercharging armature chamber is formed in position, boost electromagnetic valve spring position forms boost electromagnetic valve spring cavity, boost electromagnetic valve bar
Upper to set the oily band of annular, annular oil band realizes servo oil oil inlet with being pressurized the company of armature chamber by the movement of boost electromagnetic valve bar
On-off is opened and the connection or disconnection of servo oil drain tap and boost electromagnetic valve spring cavity；Charged piston is installed on charged piston
In set, charged piston set is installed on below boost electromagnetic valve seat, and charged piston upper end covers and be pressurized electromagnetism with charged piston
Servo oil pocket is formed between valve seat, pumping chamber is formed between charged piston bottom and charged piston set, is cased with charged piston
Charged piston spring；Inlet valve is check valve, and in charged piston set, charged piston puts on setting fuel filler, combustion
Oil-in connects inlet valve, the outlet pumping chamber of inlet valve, pumping chamber's connection central oil passage；
The fuel gas injection part include be installed on electromagnetism valve pocket in control gas electromagnetic valve, in injection apparatus
Combustion gas needle-valve gag lever post in cylinder and the combustion gas needle-valve in combustion gas base, the control gas electromagnetic valve include combustion gas
Electromagnetic valve body, combustion gas electromagnet, combustion gas armature, sealed base, gas electromagnetic valve under sealed base, combustion gas valve rod on combustion gas valve rod
Spring, gas electromagnetic valve valve rod, gas electromagnetic valve body, combustion gas valve rod upper seal support, combustion gas valve rod bottom sealing socket and combustion gas pin
Valve gag lever post is arranged from top to bottom, forms gas electromagnetic valve chamber, combustion on gas electromagnetic valve body and combustion gas valve rod between sealed base
Form combustion gas groove cavity on air valve stem under sealed base and combustion gas valve rod between sealed base, combustion gas electromagnet is installed on combustion gas electricity
In magnet valve chamber, combustion gas armature is located at below combustion gas electromagnet, and one end of gas electromagnetic valve valve rod is stuck in combustion by combustion gas locating snap ring
On gas armature, other end sealed base on the combustion gas valve rod below the combustion gas armature, and with sealed base phase under combustion gas valve rod
Coordinate, form combustion gas draining chamber, gas electromagnetic valve under the bottom of gas electromagnetic valve valve rod and combustion gas valve rod between sealed base
Sealing cone and with sealing bottom under combustion gas valve rod in the combustion gas coordinated with sealed base on combustion gas valve rod is set respectively on valve rod
Sealing cone under the combustion gas that seat coordinates, gas electromagnetic valve valve rod form combustion gas with the matched part of sealed base on combustion gas valve rod
Low pressure oil annulus, gas electromagnetic valve valve rod form combustion gas high pressure oil annulus with the matched part of sealed base under combustion gas valve rod,
The 4th oil duct of the first oil duct of combustion gas and combustion gas is set on combustion gas valve rod on sealed base, combustion is set on sealed base under combustion gas valve rod
The 3rd oil duct of the second oil duct of gas and combustion gas, the 5th oil duct of combustion gas is set in injection apparatus body, is set on injection apparatus body first low
Press drain tap, the second low pressure drain tap and fuel gas inlet, the first oil duct of combustion gas connection gas electromagnetic valve chamber and the first low pressure draining
Mouthful, gas central oil duct, the second oil duct of combustion gas connection combustion gas groove cavity and gas central oil duct are set in combustion gas needle-valve gag lever post,
The 3rd oil duct of combustion gas connects combustion gas high pressure oil annulus and central oil passage, the 4th oil duct of combustion gas connection Low Pressure Gas Network oil ring band and combustion gas
Electromagnetism valve chamber, combustion gas draining chamber connect the second low pressure drain tap, and combustion gas needle-valve is located at below combustion gas needle-valve gag lever post, combustion gas needle-valve
Forming seal band and fuel chamber respectively between combustion gas base, seal band connects central oil passage by the 5th oil duct of combustion gas,
Fuel chamber connects fuel gas inlet, and combustion gas base end sets gas jet orifice；
The fuel oil spout part include be installed on electromagnetism valve pocket in control fuel solenoid valve, in injection apparatus
Fuel piston in cylinder and the fuel pin in fuel oil base, the control fuel solenoid valve include fuel solenoid valve
Body, electromagnetic fuel iron, fuel oil armature, sealed base under sealed base, fuel oil valve rod on fuel oil valve rod, electromagnetic fuel valve spring,
Fuel solenoid valve valve rod, sealed base and fuel piston are arranged from top to bottom under sealed base, fuel oil valve rod on fuel oil valve rod,
Electromagnetic fuel valve chamber is formed on electromagnetic fuel valve body and fuel oil valve rod between sealed base, sealed base and fuel oil on fuel oil valve rod
Fuel oil groove cavity is formed under valve rod between sealed base, electromagnetic fuel iron is installed in electromagnetic fuel valve chamber, and fuel oil armature is located at
Below electromagnetic fuel iron, one end of fuel solenoid valve valve rod is stuck on fuel oil armature by fuel oil locating snap ring, and the other end is through combustion
Sealed base on fuel oil valve rod below oily armature, is set on electromagnetic fuel valve rod matched with sealed base under fuel oil valve rod
Sealing cone under fuel oil, fuel solenoid valve valve rod form fuel oil high pressure oil ring with the matched part of sealed base under fuel oil valve rod
Band, sets sealed base on the fuel oil valve rod of connection electromagnetic fuel valve chamber and fuel oil groove cavity to lead on fuel oil valve rod in sealed base
Road, electromagnetic fuel valve chamber connect the first low pressure drain tap, under fuel solenoid valve valve rod bottom and fuel oil valve rod sealed base it
Between form fuel oil draining chamber, fuel oil draining chamber connects the second low pressure drain tap, and fuel piston upper end is cased with fuel piston set, fires
Oily piston set be located at fuel oil valve rod under between sealed base and fuel piston, fuel piston and above it fuel piston set between
Fuel piston control chamber is formed, fuel piston control chamber is communicated with fuel oil high pressure oil annulus by fuel oil oil duct, while fuel oil is lived
Plug control chamber is communicated with central oil passage, and fuel piston spring is cased with fuel piston, and fuel pin is located at the lower section of fuel piston,
Oil holding slot, oil holding slot connection central oil passage are formed between fuel pin and fuel oil base.
The present invention can also include：
1st, combustion gas needle-valve upper end is designed with annular step, and combustion gas is formed between injection apparatus body below annular step
Needle control chamber, combustion gas needle-valve gag lever post lower end are sleeved on inside the annular step of combustion gas needle-valve, combustion gas needle control chamber and combustion
Gas central oil passage communicates.
2nd, when control gas electromagnetic valve is not powered on, gas electromagnetic valve valve rod is pressed in combustion under the action of gas electromagnetic valve spring
Under air valve stem on sealed base, combustion gas high pressure oil annulus is closed, Low Pressure Gas Network oil ring band is opened, combustion gas needle control chamber and first
Low pressure drain tap connects；When controlling gas electromagnetic valve energization, gas electromagnetic valve valve rod, which lifts, is pressed in sealed base on combustion gas valve rod
On, Low Pressure Gas Network oil ring band is closed, combustion gas high pressure oil annulus is opened, and combustion gas needle control chamber is connected with central oil passage.
3rd, when control fuel solenoid valve is not powered on, fuel solenoid valve valve rod is pressed in combustion under the action of electromagnetic fuel valve spring
Under fuel tap bar on sealed base, fuel oil oil duct is disconnected with fuel oil groove cavity, when control fuel solenoid valve is powered, fuel solenoid valve valve
Bar lifts, and fuel oil oil duct is connected with fuel oil groove cavity.
Advantage of the invention is that：The double electromagnetism hybrid fuel jets of combined type supercharging fuel-non pressurized combustion gas of the present invention
Device saves space and simplifies engine structure, by two electricity using crosspointer valve nozzle injection two kinds of fuel of fuel oil and combustion gas
Magnet valve controls fuel oil and the course of injection of combustion gas respectively, and when a solenoid valve works independently, injection apparatus only sprays one kind
Fuel；When two solenoid valves work at the same time, two kinds of fuel spray at the same time；When two solenoid valves successively work successively,
Two kinds of fuel sequence-injections can be achieved, injection apparatus can work under pure diesel fuel mode and oil pilot combustion gas pattern, meet hair
Requirement of the motivation under different operating modes to oil, gas mixing.In addition, the present apparatus realizes fuel pressurization, supercharging control using charged piston
System is separated with Injection Control, it is possible to achieve injection characteristics rule flexible control, can not only realize injection process in supercharging and non-increasing
Any switching laws between die pressing type, and can realize and fuel pressurization start time is independently controlled with beginning of injection, so as to obtain " boots
Shape ", " anxious after first delaying " fuel injection characteristic.
The present apparatus also has following beneficial effect at the same time：The oily draining oil circuit of present apparatus control flows through electromagnetic valve body top, passes through
Draining circulation takes away heat to reduce solenoid valve portion temperature, ensure that the reliability and stability of electromagnetic valve work；Combustion gas pin
Seal band is designed between valve and needle seating, introducing portion control oil can effectively prevent from firing as sealing oil seal combustion gas
Gas leakage, while the Seal Oil in the control oil and seal band in control chamber uses same oil, oil pressure is equal, can effectively protect
Card control oil, Seal Oil are without static leakage.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 a are fuel pressurization partial schematic diagram, and Fig. 2 b are boost electromagnetic valve schematic diagram, and Fig. 2 c are inlet valve schematic diagram, figure
2d is 1 schematic diagram of boost electromagnetic valve bar position, and Fig. 2 e are 2 schematic diagram of boost electromagnetic valve bar position；
Fig. 3 a are dual-coil electromagnetic valve partial schematic diagram, Fig. 3 b gas electromagnetic valve schematic diagrames in order to control, Fig. 3 c fuel oil electricity in order to control
Magnet valve schematic diagram, Fig. 3 d are 1 schematic diagram of gas electromagnetic valve stem position, and Fig. 3 e are 2 schematic diagram of gas electromagnetic valve stem position；
Fig. 4 partial schematic diagrams in order to control；
Fig. 5 a are nozzle segment schematic diagram, and Fig. 5 b are gas nozzle partial schematic diagram, and Fig. 5 c illustrate for fuel nozzle part
Figure.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1~5, the double electromagnetism hybrid fuel jet device masters of combined type supercharging fuel of the invention-non pressurized combustion gas
To be made of fuel pressurization part 1, dual-coil electromagnetic valve part 2, control section 5, crosspointer valve nozzle part 6 and injection apparatus body 7.Combustion
Oily compression portion 1 mainly include boost electromagnetic valve 9, charged piston 10, charged piston spring 11, charged piston set 12, fuel oil into
Fuel tap 14, pumping chamber 15, servo oil pocket 17 etc..Dual-coil electromagnetic valve part 2 mainly includes control gas electromagnetic valve 34, control fuel oil electricity
Magnet valve 35, electromagnetism valve pocket 36 etc., control gas electromagnetic valve 34 and control fuel solenoid valve 35 are installed in electromagnetism valve pocket 36.Control
Part 5 processed mainly includes combustion gas needle-valve gag lever post 59, injection apparatus inner cylinder 62, combustion gas needle control chamber 63, fuel piston spring
Seat 64, fuel piston spring 65, fuel piston 68, fuel piston set 69, fuel piston control chamber 70.Fuel oil is from fuel pressurization portion
Point 1 pumping chamber 15 passes sequentially through electromagnetism valve pocket 36, the central oil passage on injection apparatus inner cylinder 62, is punished into central oil passage 67
Three tunnels, flow into the high pressure oil annulus 48 of control gas electromagnetic valve 34 all the way, flow into fuel piston control chamber 70, another way edge all the way
Central oil passage 67 and flow at oil groove 66 and continue to be divided into two, the oil holding slot 85 of an inflow fuel nozzle 72, another flows into
The seal band 81 of gas nozzle.Crosspointer valve nozzle part mainly include gas nozzle 71, fuel nozzle 72, needle-valve base 73,
Sealing ring 74, nozzle cage 75 etc., gas nozzle 71 and fuel nozzle 72 share a needle-valve base 73.Gas nozzle 71 is by combustion gas
Needle valve spring 76, combustion gas needle-valve 77, fuel chamber 79, gas jet orifice 80, seal band 81 form.77 upper end of combustion gas needle-valve is designed with
Annular step, below annular step, forms combustion gas needle control chamber 63 between combustion gas needle-valve 77 and injection apparatus body 7.
Combustion gas needle-valve 77 and combustion gas needle-valve gag lever post 59 are co-axially mounted, and control oil is by the central oil passage 60 on combustion gas needle-valve gag lever post 59
Into combustion gas needle control chamber 63.Seal band 81 is designed between combustion gas needle-valve 77 and needle-valve base 73, passes through needle-valve base
82 introducing portion of oil duct control oil on 73 arrives seal band 81.
The present invention can also include：
1st, the boost electromagnetic valve 9 is by solenoid valve seat 19, magnetic valve spring 20, electromagnetism valve rod 22, spring washer 23, gear
Plate 24, armature 25, electromagnetic valve body 26, locating snap ring 27, coil 28, electromagnet 29 etc. form.Wherein it is designed with electromagnetism valve rod 22
Annular oil band 21, is designed with servo oil oil inlet 30 and servo oil drain tap 18 on solenoid valve seat 19, is set on charged piston set 12
In respect of fuel filler 13.When solenoid valve 9 is not powered on, annular oil band 21 connects drain tap 18 and servo oil pocket 17 by oil duct；Electricity
When magnet valve 9 is powered, annular oil band 21 connects servo oil oil inlet 30 and servo oil pocket 17.Inlet valve 14 is check valve, is installed on
On charged piston set 12, mainly include oil inlet valve seat 31, oil inlet valve spring 32, inlet valve valve rod 33 etc..
2nd, the control gas electromagnetic valve 34 mainly includes electromagnetic valve body 37, electromagnet 38, coil 39, armature 40, valve
Sealed base 46, locating snap ring 53 etc. under sealed base 42, magnetic valve spring 43, solenoid valve valve rod 44, valve rod on bar.Solenoid valve valve
Two sealing cones are designed with bar 44, and are designed with high pressure oil annulus 48 and low pressure oil annulus 50, control gas electromagnetic valve 34
When being not powered on, solenoid valve valve rod 44 is pressed under the action of magnetic valve spring 43 under valve rod on sealed base 46, high pressure oil annulus
48 close, low pressure oil annulus 50 is opened；When controlling the energization of gas electromagnetic valve 34, solenoid valve valve rod 44 is lifted to be pressed on valve rod and sealed
On base 42, low pressure oil annulus 50 is closed, high pressure oil annulus 48 is opened.
The double electromagnetism hybrid fuel jet devices of combined type supercharging fuel-non pressurized combustion gas of the present invention are mainly by fuel pressurization
Part 1, dual-coil electromagnetic valve part 2, control section 5, crosspointer valve nozzle part 6 and injection apparatus body 7 form.On injection apparatus body 7
There are the first low pressure drain tap 3,4 and second low pressure drain tap 8 of fuel gas inlet, fuel filler 13 is designed with fuel pressurization part 1.
Fuel pressurization part 1 is located at the top of injection apparatus body 7, therebetween using threaded connection.Lead fuel pressurization part 1
To include boost electromagnetic valve 9, charged piston 10, charged piston spring 11, charged piston to cover 12, inlet valve 14, pumping chamber 15, watch
Take oil pocket 17 etc..Wherein, boost electromagnetic valve 9 is by solenoid valve seat 19, magnetic valve spring 20, electromagnetism valve rod 22, spring washer 23, gear
Plate 24, armature 25, electromagnetic valve body 26, locating snap ring 27, coil 28, electromagnet 29 etc. form.Inlet valve 14 is check valve, is installed on
On charged piston set 12, mainly include oil inlet valve seat 31, oil inlet valve spring 32, inlet valve valve rod 33 etc..The electricity of boost electromagnetic valve 9
Annular oily band 21 is designed with magnet valve bar 22, servo oil oil inlet 30,18 and of servo oil drain tap are designed with solenoid valve seat 19
Fuel filler 13.22 one end of solenoid valve valve rod is fixed on solenoid valve armature 25 by locating snap ring 27, can be with armature 25
Side-to-side movement, the other end run through solenoid valve seat 19, are pressed under the action of 20 pretightning force of magnetic valve spring on baffle 24.Solenoid valve
Seat 19 can play position-limiting action to the lift of electromagnetism valve rod 22, and be designed with oil duct thereon, being capable of leader servo oil stream warp
Solenoid valve 9, plays the role of cooling down solenoid valve 9 and reduces the shock and vibration of 22 side-to-side movement of solenoid valve armature 25 and valve rod.
Servo oil pocket 17 is formed above 10 major part of charged piston between compression face and piston bush 12, solenoid valve seat 19, charged piston 10 is small
Pumping chamber 15 is formed between head lower section compression face and piston bush 12.Inlet valve 14 resetting spring, 32 pretightning forces are smaller, Opening pressure
Low, when fuel oil enters inlet valve 14, valve rod 33 is opened under fuel oil effect, and fuel oil enters pumping chamber 15；When charged piston 10
Downlink, when 15 fuel pressure of pumping chamber raises, inlet valve 14 is closed.
Dual-coil electromagnetic valve part 2 is located in the injection apparatus body 7 of the lower section of fuel pressurization part 1, main to include control combustion gas electricity
Magnet valve 34, control fuel solenoid valve 35, electromagnetism valve pocket 36 etc., control gas electromagnetic valve 34 and control fuel solenoid valve 35 are fixed
Position, in electromagnetism valve pocket 36.Gas electromagnetic valve 34 is controlled mainly to include electromagnetic valve body 37, electromagnet 38, coil 39, armature
40th, sealed base 46, locating snap ring 53 etc. under sealed base 42, magnetic valve spring 43, solenoid valve valve rod 44, valve rod on valve rod.Electricity
Form electromagnetism valve chamber 52 on magnet valve body 37 and valve rod between sealed base 42, sealed base under sealed base 42 and valve rod on valve rod
Groove cavity 49 is formed between 46.Electromagnet 38 is installed in the electromagnetism valve chamber 52 of electromagnetic valve body 37, and armature 40 is located at electromagnet 38
Lower section, one end of solenoid valve valve rod 44 are stuck on armature 40 by locating snap ring 53, and the other end is on the valve rod of the lower section of armature 40
Sealed base 42, is pressed under valve rod on sealed base 46.Two sealing cones are designed with solenoid valve valve rod 44, and are designed with height
Pressure oil annulus 48 and low pressure oil annulus 50, when control gas electromagnetic valve 34 is not powered on, solenoid valve valve rod 44 is in magnetic valve spring 43
Under the action of be pressed under valve rod on sealed base 46, high pressure oil annulus 48 is closed, low pressure oil annulus 50 is opened, such as Fig. 3 (d) institutes
Show, combustion gas needle control chamber 63 is connected with the first low pressure drain tap 3 at this time；When controlling the energization of gas electromagnetic valve 34, solenoid valve valve
Bar 44, which lifts, to be pressed on valve rod on sealed base 42, and low pressure oil annulus 50 is closed, high pressure oil annulus 48 is opened, such as Fig. 3 (e) institutes
Show, combustion gas needle control chamber 63 is connected with central oil passage 67 at this time.Oil duct 41 and oil duct are designed with valve rod on sealed base 42
51, oil duct 51 connects low pressure oil annulus 50 and electromagnetism valve chamber 52, and oil duct 41 connects electromagnetism valve chamber 52 and the first low pressure drain tap 3.
Oil duct 45 and oil duct 47 are designed under valve rod on sealed base 46, in 45 communication groove chamber 49 of oil duct and combustion gas needle-valve gag lever post 59
Heart oil duct 60, oil duct 47 connect the central oil passage 67 on high pressure oil annulus 48 and injection apparatus inner cylinder 62.Present apparatus draining oil circuit
Solenoid valve is flowed through, dual-coil electromagnetic valve heat is taken away under fuel flow effect, plays the role of cooling down solenoid valve, and reduce solenoid valve
The shock and vibration that armature moves up and down, so as to improve the stability of dual-coil electromagnetic valve work.Control the control of fuel solenoid valve 35
There was only a sealing cone and a high pressure oil annulus 57 on valve rod, when control fuel solenoid valve 35 is not powered on, it controls valve rod
It is pressed on valve stem seal base, closes high pressure oil annulus 57.Control section 5 is located at the injection apparatus of the lower section of dual-coil electromagnetic valve part 2
In body 7, it is main include injection needle-valve gag lever post 59, device inner cylinder 62, combustion gas needle control chamber 63, fuel piston spring base 64,
Fuel piston spring 65, fuel piston 68, fuel piston set 69, fuel piston control chamber 70.Each component installation of control section 5
In injection apparatus inner cylinder 62, central oil passage 67 and air flue 61, combustion gas needle-valve gag lever post 59 are designed with injection apparatus inner cylinder 62
On be designed with central oil passage 60.Fuel oil passes sequentially through electromagnetism valve pocket 36, in injection apparatus from the pumping chamber 15 of fuel pressurization part 1
Central oil passage on cylinder 62, three tunnels are punished into central oil passage 67, flow into the high pressure oil annulus of control gas electromagnetic valve 34 all the way
48, fuel piston control chamber 70 is flowed into all the way, and another way is flowed at oil groove 66 along central oil passage 67 to be continued to be divided into two, one
Flow into the oil holding slot 85 of fuel nozzle 72, the seal band 81 of another inflow gas nozzle.Crosspointer valve nozzle part 6 is positioned at spray
The lower section of injection device body 7, mainly includes gas nozzle 71, fuel nozzle 72, needle-valve base 73, sealing ring 74, nozzle cage 75 etc., combustion
Gas jets 71 and fuel nozzle 72 share a needle-valve base 73.Gas nozzle 71 by combustion gas needle valve spring 76, combustion gas needle-valve 77,
Fuel chamber 79, gas jet orifice 80, seal band 81 form.77 upper end of combustion gas needle-valve is designed with annular step, in circular ring shape platform
Below rank, combustion gas needle control chamber 63 is formed between combustion gas needle-valve 77 and injection apparatus body 7.Combustion gas needle-valve 77 and combustion gas needle-valve limit
Position bar 59 is co-axially mounted, and control oil enters combustion gas needle control chamber 63 by the central oil passage 60 on combustion gas needle-valve gag lever post 59.
Combustion gas needle-valve 77 is pressed in closing gas jet orifice 80 on needle-valve base 73 under the pretightning force effect of combustion gas needle valve spring 76.Combustion gas from
Fuel gas inlet 4 on injection apparatus body 7 enters fuel chamber 79 by air flue 61, air flue 78.Combustion gas is above fuel chamber 79, combustion gas
Seal band 81 is designed between needle-valve 77 and needle-valve base 73, oil is controlled by 82 introducing portion of oil duct on needle-valve base 73
Combustion gas is sealed to seal band 81.Fuel nozzle 72 mainly includes fuel pin 83, oil holding slot 85, fuel oil spray orifice 86, fuel oil pin
Valve 83 is pressed on needle-valve base 73 by fuel piston spring base 64 and closes fuel oil spray orifice 86.Increasing of the fuel oil from fuel pressurization part 1
Pressure chamber 15 passes sequentially through electromagnetism valve pocket 36, the central oil passage 67 on injection apparatus inner cylinder 62, then by the oil duct on needle-valve base 73
82 enter oil holding slot 85.Using being threadedly coupled and being designed with sealing ring 74 between nozzle cage 75 and injection apparatus body 7, cylinder is prevented
The combustion gas of interior high temperature, high pressure enters injection apparatus crosspointer valve nozzle part.
The gas nozzle injection of the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel-non pressurized combustion gas of the present invention
Combustion gas, during combustion gas needle-valve is lifted and taken a seat, combustion gas easily leaks upwards with the movement of valve rod, and the combustion gas of leakage enters
During combustion gas needle control chamber 63, since the compressibility of combustion gas can seriously affect its jet characteristic.In order to solve the problems, such as this, this hair
Bright combined type hybrid fuel jet device is provided with seal band 81 between combustion gas needle-valve 77 and needle-valve base 73, passes through oil duct
Introducing portion controls oil seal combustion gas, can effectively prevent gas leakage.In addition, in combustion gas needle control chamber 63 control oil and
Seal Oil in seal band 81 uses same oil, and oil pressure is equal up and down for needle-valve, and control oil, Seal Oil can be effectively ensured without quiet
State leaks.
When engine works, control unit gathers the input signal of sensor, driving boost electromagnetic valve 9, control combustion gas electricity
Magnet valve 34 and control fuel solenoid valve 35 work, so as to control fuel pressurization, 71 jet of gas nozzle and fuel nozzle 72 respectively
Oil spout.When solenoid valve 9 powers off, solenoid valve valve rod 22 is withstood under the action of magnetic valve spring 20 on right-hand apron 24, at this time,
Annular oil band 21 connects drain tap 19 and servo oil pocket 17, and as shown in Fig. 2 (d), servo oil stream is let out to low pressure in servo oil pocket 17
Hydraulic fluid port 19,17 pressure of servo oil pocket reduce, the uplink under the action of resetting spring 11 of charged piston 10,15 internal combustion oil pressure of pumping chamber
Power declines, and the open-top inlet valve valve rod 33 of fuel oil of inlet valve 14 is entered from fuel filler 13, supercharging device starts oil inlet；Solenoid valve
During 9 energization, electromagnet 29 attracts armature 25, and armature 25 is with moving electromagnetic valve valve rod 22 to left movement, and at this time, annular oil band 21 connects
Servo oil-in 30 and servo oil pocket 17, as shown in Fig. 2 (e), servo oil enters servo oil pocket 17, in servo oil pocket 17 pressure by
Edge up height, promotion 10 downlink of charged piston, and pressure just starts to raise in pumping chamber 15, and inlet valve 14 is closed, charged piston 10
Continue traveling downwardly to fuel pressurization in pumping chamber 15.Fuel oil enters the oil holding slot 79 of fuel nozzle 72 by air flue in pumping chamber 15
It is interior.When controlling the energization of gas electromagnetic valve 34, electromagnetism valve rod 44 lifts, and high pressure oil annulus 48 is opened, low pressure oil annulus 50 is closed, high
Pressure oil followed by high pressure oil annulus 48, groove cavity 49, combustion gas needle-valve gag lever post 59 central oil passage 60, flow into combustion gas needle-valve control
Chamber 63 processed, combustion gas needle-valve 77 lift rapidly in combustion gas needle control chamber 63 under high pressure oil effect, and gas jet orifice 80 is opened, combustion gas
Nozzle 71 starts jet；When controlling the power-off of gas electromagnetic valve 34, electromagnetism valve rod 44 is pressed in valve rod under the effect of magnetic valve spring 43
On lower sealed base 46, high pressure oil annulus 48 turns off, low pressure oil annulus 50 is opened, and high pressure oil passes through in combustion gas needle control chamber 63
Oil duct flows to the first low pressure drain tap 3, combustion gas needle control chamber followed by groove cavity 49 and electromagnetism valve chamber 52, then from oil duct 41
Oil pressure reduces in 63, and combustion gas needle-valve 77 is pressed on needle-valve base 73 under the effect of combustion gas needle valve spring 76, closes gas jet orifice 80,
Gas nozzle 71 stops jet.When controlling the power-off of fuel solenoid valve 35, the fuel regulator valve under the action of fuel regulator valve spring
Bar is pressed on control valve seat, and shut-off high pressure oil annulus 57, fuel piston control chamber 70 is equal with oil pressure in oil holding slot 85, fuel oil pin
Valve 83 is pressed on needle-valve base 73 by fuel piston spring base 64 under the effect of fuel piston spring 65 and closes fuel oil spray orifice 86,
72 not oil spout of fuel nozzle；When controlling the energization of fuel solenoid valve 35, fuel solenoid valve valve rod lifts, and high pressure oil annulus 34 is opened,
High pressure oil then is flowed from oil duct 34 by oil duct followed by fuel oil groove cavity, electromagnetic fuel valve chamber in fuel piston control chamber 70
To the first low pressure drain tap 3, oil pressure declines in fuel piston control chamber 70, and fuel pin 83, which lifts rapidly, opens fuel oil spray orifice
86,72 commencement of fuel injection of fuel nozzle.The operating mode according to residing for engine, may be selected control boost electromagnetic valve 9, control gas electromagnetic valve
34 and control fuel solenoid valve 35 working status and job order, realize it is a variety of oil, gas blowout emission modes.
From the above-mentioned course of work, the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel-non pressurized combustion gas are adopted
With crosspointer valve nozzle spray fuel, save space and simplify engine structure, two nozzles are controlled respectively by two solenoid valves
Fuel injection process, when only one electromagnetic valve work, injection apparatus only sprays fuel oil or combustion gas；Two solenoid valves are at the same time
When work, combustion gas and fuel oil spray at the same time；When two solenoid valves successively act, two kinds of fuel sequencing injections.
Fuel gas injection process can be pressurized any switching laws between non pressurized both of which, and whiff pressure is adjustable, and fuel injection rule is flexible,
Engine can flexibly switch under pure diesel oil operating mode or oil pilot combustion gas operating mode, meet engine in different operating modes
Under oil, gas mixing demand.Present apparatus nozzle segment can effectively prevent gas leakage using fuel sealing combustion gas, control oil and
Seal Oil can effectively prevent the fuel oil static leakage of control chamber and seal band using same oil.Therefore, the present invention can make
Engine meets increasingly stringent emission regulation demands, effectively improves its dynamic property, economy and reliability.
The double electromagnetism hybrid fuel jet devices of combined type supercharging fuel-non pressurized combustion gas, including fuel pressurization part, double electricity
Magnet valve part, control section, crosspointer valve nozzle part and injection apparatus housing.Have on injection apparatus housing a fuel gas inlet,
Two low pressure drain taps, compression portion have fuel filler, servo oil-in and servo oil drain tap.Compression portion mainly includes control
Boost electromagnetic valve processed, charged piston, charged piston set, piston reset spring, inlet valve etc..Dual-coil electromagnetic valve part mainly includes control
Fuel solenoid valve processed and control gas electromagnetic valve, two solenoid valve mounting means are identical, the electricity being installed in injection apparatus body
In magnet valve set.Control section mainly includes injection apparatus inner cylinder, combustion gas needle-valve gag lever post, combustion gas needle valve spring, combustion gas needle-valve control
Chamber processed, fuel piston spring base, fuel piston spring, fuel piston, fuel piston set, fuel piston control chamber etc., each component
Position, in injection apparatus inner cylinder.Crosspointer valve nozzle part mainly include gas nozzle, fuel nozzle, needle-valve base,
Sealing ring, nozzle cage etc., gas nozzle and fuel nozzle share a needle-valve base.
Fuel pressurization section solenoid valve include electromagnetic valve body, electromagnet, coil, solenoid valve valve rod, solenoid valve seat, armature,
Locating snap ring, magnetic valve spring, baffle etc..Coil and electromagnet are installed in electromagnetic valve body, and armature is located at electromagnet right, electromagnetism
One end of valve valve rod is stuck on armature by locating snap ring, and the other end is pressed on baffle under spring force.Set on solenoid valve seat
In respect of servo oil-in and drain tap, annular oily band is designed with solenoid valve valve rod, during solenoid valves, valve rod is moved to the left,
Annular oil band connection servo oil-in and servo oil pocket, servo oil enter servo oil pocket；When solenoid valve powers off, solenoid valve valve rod top
On right-hand apron, annular oil band connection servo oil pocket and drain tap, servo oil stream is to low pressure drain tap.
Control gas electromagnetic valve on electromagnet, electromagnet, coil, armature, solenoid valve valve rod, valve rod mainly including sealing bottom
Sealed base, magnetic valve spring, locating snap ring etc. under seat, valve rod.On electromagnetic valve body and valve rod solenoid valve is formed between sealed base
Chamber, forms groove cavity on valve rod under sealed base and valve rod between sealed base.Electromagnet is installed in electromagnetism valve chamber, armature position
Below electromagnet, its one end is stuck on armature by locating snap ring, other end sealed base on the valve rod below armature, pressure
Under valve rod on sealed base.Sealed base is designed with two oil ducts, an oil duct communication groove chamber and electromagnetism valve chamber on valve rod,
Another oil duct connection electromagnetism valve chamber and the first low pressure drain tap, draining oil circuit flow through electromagnetic valve body.Sealed base is set under valve rod
In respect of two oil ducts, an oil duct connection high pressure oil annulus and combustion gas needle control chamber, another oil duct connect solenoid valve valve rod
Lower section oil pocket and the second low pressure drain tap.
The oily band of two annulars, lower endless oil band logical oil channel connection high pressure oil are designed with control gas electromagnetic valve valve rod
Entrance, upper annular oil band logical oil channel connection low pressure drain tap.
Be designed with two sealing cones on control gas electromagnetic valve valve rod, upper sealing cone sealing low pressure oil ring band, under it is close
Seal conical surface seal high pressure oil annulus.Solenoid valve valve rod is taken a seat, and high-pressure oil passage is turned off, combustion gas needle control chamber connection low pressure oil
Road；Solenoid valve valve rod lifts, low pressure oil way shut-off, combustion gas needle control chamber connection high-pressure oil passage.
Fuel solenoid valve is controlled mainly to include electromagnet, electromagnet, coil, armature, solenoid valve valve rod, valve stem seal bottom
Seat, magnetic valve spring seat, magnetic valve spring, locating snap ring etc..Electromagnetism valve chamber, electricity are formed between electromagnetic valve body and magnetic valve spring seat
Groove cavity is formed between magnet valve spring base and valve stem seal base.Electromagnet is installed in electromagnetism valve chamber, and armature is located at electromagnet
Lower section, is designed with high pressure oil annulus on solenoid valve valve rod, and its one end is stuck on armature by locating snap ring, and the other end runs through under armature
The magnetic valve spring seat of side, is pressed on valve stem seal base, closes high pressure oil annulus.Two oil are designed with magnetic valve spring seat
Road, an oil duct communication groove chamber and electromagnetism valve chamber, an oil duct connection electromagnetism valve chamber and the first low pressure drain tap, draining oil circuit
Flow through electromagnetic valve body.Two oil ducts, an oil duct connection high pressure oil annulus and fuel piston control are designed with valve stem seal base
Chamber processed, an oil duct connection solenoid valve valve rod lower section oil pocket and the second low pressure drain tap.
Control section combustion gas needle-valve upper end is designed with annular step, below annular step needle-valve and injection apparatus body it
Between form combustion gas needle control chamber, combustion gas needle-valve gag lever post lower end is sleeved on inside the annular step of combustion gas needle-valve, combustion gas needle-valve
Gag lever post and combustion gas needle-valve set central oil passage along axis, and combustion gas needle control chamber is communicated by oil duct and solenoid valve groove cavity.
Gas nozzle and fuel nozzle share a fuel filler.Fuel oil enters supercharging from the inlet valve on charged piston set
Room, passes sequentially through electromagnetism valve pocket, the central oil passage on injection apparatus inner cylinder and is divided into four tunnels, high pressure oil is flowed into by oil duct all the way
Fuel piston control chamber, flows into the oil holding slot of fuel nozzle all the way, flows into the high pressure oil annulus of gas electromagnetic valve all the way, flows all the way
Enter the seal band of gas nozzle.
Above the fuel chamber of gas nozzle, annular sealing strip, needle-valve bottom are designed between combustion gas needle-valve and needle-valve base
Annular oil groove and oil duct are provided with seat, controls oil to introduce annular sealing strip part.
Claims (5)
1. the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel-non pressurized combustion gas, it is characterized in that：Including fuel pressurization portion
Point, fuel gas injection part, fuel oil spout part, injection apparatus body, electromagnetism valve pocket, injection apparatus inner cylinder, needle-valve base, fuel oil increase
Laminate section is installed on above injection apparatus body, and electromagnetism valve pocket and injection apparatus inner cylinder are installed in injection apparatus body from top to bottom,
Central oil passage is set in electromagnetism valve pocket and injection apparatus inner cylinder, needle-valve base is installed on below injection apparatus body by nozzle cage,
The needle-valve base includes combustion gas base and fuel oil base；
The fuel pressurization part includes boost electromagnetic valve, charged piston, charged piston set, inlet valve, and boost electromagnetic valve includes
Boost electromagnetic valve seat, supercharging electromagnet, be pressurized armature, boost electromagnetic valve bar, and servo oil oil inlet is set in boost electromagnetic valve seat
With servo oil drain tap, boost electromagnetic valve bar one end is fixed on supercharging armature by being pressurized locating snap ring, and the other end is through supercharging
Solenoid valve seat is simultaneously pressed on baffle under the action of the pretightning force for covering boost electromagnetic valve spring thereon, and supercharging armature institute is in place
Put to form supercharging armature chamber, boost electromagnetic valve spring position forms boost electromagnetic valve spring cavity, sets on boost electromagnetic valve bar
Put annular oily band, annular oil band by the movement of boost electromagnetic valve bar realize servo oil oil inlet be pressurized armature chamber connection or
Disconnection and the connection or disconnection of servo oil drain tap and boost electromagnetic valve spring cavity；Charged piston is installed on charged piston set
In, charged piston set is installed on below boost electromagnetic valve seat, and charged piston upper end is covered with charged piston and boost electromagnetic valve
Servo oil pocket is formed between seat, pumping chamber is formed between charged piston bottom and charged piston set, is cased with increasing on charged piston
Press piston spring；Inlet valve is check valve, and in charged piston set, charged piston puts on setting fuel filler, fuel oil
Entrance connects inlet valve, the outlet pumping chamber of inlet valve, pumping chamber's connection central oil passage；
The fuel gas injection part include be installed on electromagnetism valve pocket in control gas electromagnetic valve, in injection apparatus inner cylinder
Combustion gas needle-valve gag lever post and the combustion gas needle-valve in combustion gas base, it is described control gas electromagnetic valve include combustion gas electromagnetism
Valve body, combustion gas electromagnet, combustion gas armature, sealed base, gas electromagnetic valve bullet under sealed base, combustion gas valve rod on combustion gas valve rod
Spring, gas electromagnetic valve valve rod, gas electromagnetic valve body, combustion gas valve rod upper seal support, combustion gas valve rod bottom sealing socket and combustion gas needle-valve
Gag lever post is arranged from top to bottom, forms gas electromagnetic valve chamber, combustion gas on gas electromagnetic valve body and combustion gas valve rod between sealed base
Form combustion gas groove cavity on valve rod under sealed base and combustion gas valve rod between sealed base, combustion gas electromagnet is installed on combustion gas electromagnetism
In valve chamber, combustion gas armature is located at below combustion gas electromagnet, and one end of gas electromagnetic valve valve rod is stuck in combustion gas by combustion gas locating snap ring
On armature, other end sealed base on the combustion gas valve rod below combustion gas armature, and match with sealed base under combustion gas valve rod
Close, form combustion gas draining chamber, gas electromagnetic valve valve under the bottom of gas electromagnetic valve valve rod and combustion gas valve rod between sealed base
On bar respectively set with combustion gas valve rod on sealed base coordinate combustion gas on sealing cone and with sealed base under combustion gas valve rod
Sealing cone under the combustion gas of cooperation, it is low that gas electromagnetic valve valve rod part matched with sealed base on combustion gas valve rod forms combustion gas
Pressure oil annulus, gas electromagnetic valve valve rod form combustion gas high pressure oil annulus, combustion with the matched part of sealed base under combustion gas valve rod
The 4th oil duct of the first oil duct of combustion gas and combustion gas is set on air valve stem on sealed base, combustion gas is set on sealed base under combustion gas valve rod
The 3rd oil duct of second oil duct and combustion gas, the 5th oil duct of combustion gas is set in injection apparatus body, the first low pressure is set on injection apparatus body
Drain tap, the second low pressure drain tap and fuel gas inlet, the first oil duct of combustion gas connection gas electromagnetic valve chamber and the first low pressure drain tap,
Gas central oil duct, the second oil duct of combustion gas connection combustion gas groove cavity and gas central oil duct, combustion are set in combustion gas needle-valve gag lever post
The 3rd oil duct of gas connects combustion gas high pressure oil annulus and central oil passage, the 4th oil duct of combustion gas connection Low Pressure Gas Network oil ring band and combustion gas electricity
Magnet valve chamber, combustion gas draining chamber connect the second low pressure drain tap, and combustion gas needle-valve be located at below combustion gas needle-valve gag lever post, combustion gas needle-valve and
Seal band and fuel chamber are formed between combustion gas base respectively, seal band connects central oil passage, combustion by the 5th oil duct of combustion gas
Gas chamber connects fuel gas inlet, and combustion gas base end sets gas jet orifice；
The fuel oil spout part include be installed on electromagnetism valve pocket in control fuel solenoid valve, in injection apparatus inner cylinder
Fuel piston and the fuel pin in fuel oil base, it is described control fuel solenoid valve include electromagnetic fuel valve body,
Electromagnetic fuel iron, fuel oil armature, sealed base, electromagnetic fuel valve spring, fuel oil under sealed base, fuel oil valve rod on fuel oil valve rod
Solenoid valve valve rod, sealed base and fuel piston are arranged from top to bottom under sealed base, fuel oil valve rod on fuel oil valve rod, fuel oil
Electromagnetic fuel valve chamber is formed on electromagnetic valve body and fuel oil valve rod between sealed base, sealed base and fuel oil valve rod on fuel oil valve rod
Fuel oil groove cavity is formed between lower sealed base, electromagnetic fuel iron is installed in electromagnetic fuel valve chamber, and fuel oil armature is located at fuel oil
Below electromagnet, one end of fuel solenoid valve valve rod is stuck on fuel oil armature by fuel oil locating snap ring, and the other end is held in the mouth through fuel oil
Sealed base on fuel oil valve rod below iron, is set on electromagnetic fuel valve rod and the matched fuel oil of sealed base under fuel oil valve rod
Lower sealing cone, fuel solenoid valve valve rod form fuel oil high pressure oil annulus with the matched part of sealed base under fuel oil valve rod,
Sealed base passage on the fuel oil valve rod of connection electromagnetic fuel valve chamber and fuel oil groove cavity is set on fuel oil valve rod in sealed base,
Electromagnetic fuel valve chamber connects the first low pressure drain tap, shape between sealed base under fuel solenoid valve valve rod bottom and fuel oil valve rod
Into fuel oil draining chamber, fuel oil draining chamber connects the second low pressure drain tap, and fuel piston upper end is cased with fuel piston set, and fuel oil is lived
Plug sleeve is located under fuel oil valve rod between sealed base and fuel piston, fuel piston and above it fuel piston set between formed
Fuel piston control chamber, fuel piston control chamber is communicated with fuel oil high pressure oil annulus by fuel oil oil duct, while fuel piston control
Chamber processed is communicated with central oil passage, and fuel piston spring is cased with fuel piston, and fuel pin is located at the lower section of fuel piston, fuel oil
Oil holding slot, oil holding slot connection central oil passage are formed between needle-valve and fuel oil base.
2. the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel according to claim 1-non pressurized combustion gas, it is special
Sign is：Combustion gas needle-valve upper end is designed with annular step, and combustion gas needle-valve is formed between injection apparatus body below annular step
Control chamber, combustion gas needle-valve gag lever post lower end is sleeved on inside the annular step of combustion gas needle-valve, in combustion gas needle control chamber and combustion gas
Heart oil duct communicates.
3. the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel according to claim 1 or 2-non pressurized combustion gas,
It is characterized in that：When control gas electromagnetic valve is not powered on, gas electromagnetic valve valve rod is pressed in combustion under the action of gas electromagnetic valve spring
Under air valve stem on sealed base, combustion gas high pressure oil annulus is closed, Low Pressure Gas Network oil ring band is opened, combustion gas needle control chamber and first
Low pressure drain tap connects；When controlling gas electromagnetic valve energization, gas electromagnetic valve valve rod, which lifts, is pressed in sealed base on combustion gas valve rod
On, Low Pressure Gas Network oil ring band is closed, combustion gas high pressure oil annulus is opened, and combustion gas needle control chamber is connected with central oil passage.
4. the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel according to claim 1 or 2-non pressurized combustion gas,
It is characterized in that：When control fuel solenoid valve is not powered on, fuel solenoid valve valve rod is pressed in combustion under the action of electromagnetic fuel valve spring
Under fuel tap bar on sealed base, fuel oil oil duct is disconnected with fuel oil groove cavity, when control fuel solenoid valve is powered, fuel solenoid valve valve
Bar lifts, and fuel oil oil duct is connected with fuel oil groove cavity.
5. the double electromagnetism hybrid fuel jet devices of combined type supercharging fuel according to claim 3-non pressurized combustion gas, it is special
Sign is：When control fuel solenoid valve is not powered on, fuel solenoid valve valve rod is pressed in fuel valve under the action of electromagnetic fuel valve spring
Under bar on sealed base, fuel oil oil duct is disconnected with fuel oil groove cavity, when control fuel solenoid valve is powered, the lift of fuel solenoid valve valve rod
Rise, fuel oil oil duct is connected with fuel oil groove cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610250350.2A CN105781836B (en) | 2016-04-21 | 2016-04-21 | The double electromagnetism hybrid fuel jet devices of the non pressurized combustion gas of combined type supercharging fuel |
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| CN201610250350.2A CN105781836B (en) | 2016-04-21 | 2016-04-21 | The double electromagnetism hybrid fuel jet devices of the non pressurized combustion gas of combined type supercharging fuel |
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| CN105781836B true CN105781836B (en) | 2018-04-17 |
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| DE4115478C2 (en) * | 1990-05-17 | 1999-05-12 | Avl Verbrennungskraft Messtech | Injection nozzle for an internal combustion engine |
| FI112527B (en) * | 1999-12-16 | 2003-12-15 | Waertsilae Finland Oy | An injection valve |
| US6702207B2 (en) * | 2002-07-16 | 2004-03-09 | Robert Bosch Gmbh | Fuel injector control module with unidirectional dampening |
| DE10246595A1 (en) * | 2002-10-05 | 2004-04-15 | Robert Bosch Gmbh | Double fuel injector system for spraying fuel into combustion chamber of internal combustion engine, has two spring-loaded valve pistons in separate bores controlling separate sets of spray nozzles |
| US7556017B2 (en) * | 2006-03-31 | 2009-07-07 | Caterpillar Inc. | Twin needle valve dual mode injector |
| US9453483B2 (en) * | 2011-08-30 | 2016-09-27 | Caterpillar Inc. | Fuel injector for dual fuel common rail system |
| CN102705120B (en) * | 2012-06-19 | 2015-03-11 | 哈尔滨工程大学 | Dual-fuel electric control monomer ejector |
| CN104912707A (en) * | 2015-06-23 | 2015-09-16 | 哈尔滨工程大学 | Bivalve-cooperated electromagnetic control oil spray device |
| CN105332826B (en) * | 2015-11-27 | 2018-08-17 | 哈尔滨工程大学 | No leakage electromagnetic control type fuel gas ejecting device |
| CN205779391U (en) * | 2016-04-21 | 2016-12-07 | 哈尔滨工程大学 | The double electromagnetism hybrid fuel jet device of the non pressurized combustion gas of combination type supercharging fuel |
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