CN205779392U - The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type - Google Patents
The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type Download PDFInfo
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- CN205779392U CN205779392U CN201620338810.2U CN201620338810U CN205779392U CN 205779392 U CN205779392 U CN 205779392U CN 201620338810 U CN201620338810 U CN 201620338810U CN 205779392 U CN205779392 U CN 205779392U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The purpose of this utility model is to provide the double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type to include compression portion, electromagnetism piezoelectricity control part, nozzle segment, inlet channel, oil-feed oil duct, draining oil duct etc..The motion that this utility model utilizes boost electromagnetic valve to control charged piston realizes the supercharging of combustion gas and fuel oil, combustion gas and fuel pressurization timing are controlled, can quickly realize the switching without boosting jet of fuel boosting jet and fuel, meet dual fuel engine different capacity to combustion gas and the different requirements of fuel-injection pressure；By controlling boost electromagnetic valve, fuel solenoid valve, the duty of piezoelectric element and job order, hybrid fuel jet device can realize the injection of non pressurized fuel oil, supercharging fuel injection, non pressurized fuel oil/non pressurized combustion gas dual fuel injection and supercharging fuel/pressurized combustion gases dual fuel injection four kinds jet mode.
Description
Technical field
The utility model relates to a kind of fuel injection device, specifically dual fuel engine fuel injection dress
Put.
Background technology
Development engine replacing fuel is to solve energy shortage and problem of environmental pollution effectively one of means.Gas
Fuel has the electromotor of good development prospect substitute combustion because the advantages such as rich reserves, cheap and disposal of pollutants be low becomes
Material.Although the gas engine only with a kind of gaseous fuel discharges cleaning, but gases used fuel energy density is low, and fuel disappears
Consumption is big, uses direction limited；And use diesel oil as light fluid, when gaseous fuel uses as the dual fuel engine of main fuel
Can switch flexibly between two kinds of fuel, replacement of fuel rate is high, has preferable dynamic property, economy and emission performance.
Existing in-cylinder direct-jet dual fuel engine how in, fuel oil, combustion gas supercharging many employings high-pressure pump compression fuel oil, combustion gas
To authorized pressure, the weak point existed has: gas nozzle and fuel nozzle are independently mounted on cylinder cap, size and installation site
Limited by cylinder cap；High-pressure pump structure is complicated, and from pump end to gas nozzle and the transmission pipeline of fuel nozzle is long, pressurized fuel exists
Certain leakage；Gas nozzle utilizes pressure gas jack-up needle-valve, but owing to the compressibility of gas is strong, is unfavorable for realizing needle-valve fortune
Dynamic accurate control, fuel gas injection is unstable；Additionally, during fuel gas injection, along with needle-valve motion combustion gas by needle-valve with
Gap between valve body, to the leakage aggravation of electromagnetic valve end, causes fuel gas injection pressure and injection rate to reduce, to fuel gas injection
Stability has harmful effect, have impact on engine power performance and fuel economy.
Summary of the invention
The purpose of this utility model is that offer can realize the injection of non pressurized fuel oil, supercharging fuel injection, non pressurized combustion
The combination type of oil/non pressurized combustion gas dual fuel injection and supercharging fuel/four kinds of jet modes of pressurized combustion gases dual fuel injection is double to be increased
Pressure electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device.
The purpose of this utility model is achieved in that
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of this utility model combination type, is characterized in that: include
Compression portion, injection apparatus shell, control crust of the device, piezo jet part, electromagnetic injection part, needle-valve base, oil-feed oil
Road, draining oil duct, inlet channel, control crust of the device and be arranged in injection apparatus shell, oil-feed oil duct, draining oil duct, air inlet
Passage the most through control crust of the device and injection apparatus shell, needle-valve base is arranged on injection apparatus shell by fastening nut
Lower section, described needle-valve base includes piezoelectricity base and electromagnetic base；
Described compression portion includes pressurizer shell, supercharger control valve, boost electromagnetic valve coil, supercharging armature, supercharging
Control valve back-moving spring, supercharger control valve return spring holder, pressurization control valve base, charged piston, the first check valve, the second list
To valve, pressurizer shell is arranged on above control crust of the device, and pressurizer shell arranges pressurised oil oil-in, pressurised oil
Drain tap, air inlet, oil-in, boost electromagnetic valve coil is arranged in pressurizer shell, and supercharging armature is positioned at supercharging electromagnetism
Below valve coil, the upper end of supercharger control valve is stuck on supercharging armature by locating snap ring, and the lower end of supercharger control valve passes supercharging
Supercharger control valve return spring holder below armature is pressed on pressurization control valve base, and supercharger control valve arranges sealing cone
With the lower seal conical surface, between supercharger control valve return spring holder and pressurization control valve base, form supercharger control valve oil pocket, supercharging
Oil oil-in is connected with supercharger control valve oil pocket by the lower seal conical surface of supercharger control valve, and supercharger control valve oil pocket passes through supercharging
The upper sealing cone of control valve connects with pressurised oil drain tap, and pressurization control valve base has supercharger control valve drain tap, supercharging
Piston is arranged on the lower section of pressurization control valve base, forms charged piston epicoele between pressurization control valve base and charged piston,
Charged piston epicoele connects with supercharger control valve oil pocket, in the middle part of pressurizer shell and charged piston between to form charged piston multiple
Position spring cavity, charged piston back-moving spring is placed on charged piston and is positioned at charged piston back-moving spring intracavity portion, pressurizer
Form combustion gas booster cavity between shell and charged piston middle and lower part, between pressurizer shell and charged piston bottom, form combustion
Oil booster cavity, the first check valve and the second check valve be installed in pressurizer shell, the import of the first check valve and oil-feed
Mouth is connected, and the import of the second check valve is connected with air inlet, the outlet fuel pressurization chamber of the first check valve, and fuel oil increases
Pressure chamber connection oil-feed oil duct, the outlet combustion gas booster cavity of the second check valve, combustion gas booster cavity connection inlet channel；
Described electromagnetic injection part includes electromagnetic valve coil, armature, the first control valve, the first control valve seat, the first control
Valve back-moving spring, the first control valve return spring holder, control piston, electromagnetic valve coil and armature are arranged in control crust of the device
Portion, is armature chamber at armature place, and the first control valve upper end is stuck on armature by locating snap ring, and the first control valve is through the first control
Valve return spring holder processed is also pressed on the first control valve seat, forms control between bottom and first control valve seat of the first control valve
Valve draining chamber processed, forms draining chamber, the first control valve reset bullet between the first control valve return spring holder and the first control valve seat
Spring is enclosed within the first control valve, and the top of the first control valve back-moving spring withstands on the first control valve return spring holder, the first control
The bottom of valve back-moving spring processed is stuck in the first control valve, and the first control valve arranges the lower seal conical surface, below the first control valve seat
Arranging control cavity, the upper end of control piston is arranged in control cavity and and controls to form control chamber between cavity, first
Arranging drain path and the first drain tap on control valve return spring holder, drain path connection armature chamber and draining chamber, first lets out
Hydraulic fluid port connection armature chamber and draining oil duct, the first control valve seat arranges oil return opening and control valve drain tap, controls chamber by control
The first oil-in connection oil-feed oil duct in crust of the device processed, one end connection of oil return opening controls chamber, and the other end of oil return opening leads to
The lower sealing surface crossing the first control valve realizes the connection with draining chamber or disconnection, control valve drain tap connection draining oil duct, controls
The bottom of piston connects the first needle-valve return spring holder, and the first needle-valve is arranged in electromagnetic base and is positioned at the first needle-valve and resets
Below spring base, control to be cased with the first needle-valve back-moving spring on piston, form oil holding slot between the first needle-valve and electromagnetic base, contain
Oil groove connection oil-feed oil duct；
Described piezo jet part includes piezoelectric element, conversion piston, the second control valve, the second control valve seat, the second control
Valve return spring holder processed, gag lever post, the second needle-valve, the second needle-valve back-moving spring, piezoelectric element is arranged in control crust of the device,
Arranging metallic gasket below piezoelectric element, conversion piston upper end is stuck on metallic gasket, arranges the second control below conversion piston
Valve, the second control valve is arranged on inside the second control valve seat, and the second control valve arranges sealing cone and the lower seal conical surface,
Being cased with the second control valve back-moving spring between upper sealing cone and the lower seal conical surface, the second control valve back-moving spring lower end is supported on
On second control valve return spring holder, between the second control valve return spring holder and the second control valve seat, form control valve oil pocket,
Have the second oil-in on second control valve seat, the second control valve return spring holder has the second drain tap, the second oil-in
Realize connecting or disconnecting with control valve oil pocket by the upper sealing cone of control valve, the control valve oil pocket lower seal by control valve
The conical surface and the second drain tap realize connection or disconnect, and gag lever post is arranged on below the second control valve return spring holder, gag lever post
Lower end is placed on inside the second needle-valve, and the second needle-valve back-moving spring is enclosed within outside gag lever post, and the lower end of the second needle-valve back-moving spring is propped up
Support is on the second needle-valve, and the second needle-valve is arranged in the piezoelectricity base of needle-valve base, between the second needle-valve and injection apparatus shell
Forming needle chamber, gag lever post and the second needle-valve and arrange central oil passage along axis, central oil passage connects control valve oil pocket and needle chamber,
Band is connected with oil-feed oil duct, pressure tank connection inlet channel.
This utility model can also include:
1, during piezoelectric element energising, piezoelectric element extends, and the second control valve overcomes the spring of the second control valve back-moving spring
In power and control valve oil pocket, the hydraulic coupling of fuel oil moves downward, and the lower sealing surface of the second control valve is pressed in the second control valve reset bullet
On spring abutment, control valve oil pocket and the second drain tap disconnect, and control valve oil pocket and the connection of the second oil-in, fuel oil leads to from oil-feed oil duct
Crossing in the second oil-in, control valve oil pocket, central oil passage entrance needle chamber, fuel oil acts on the second needle-valve, overcomes the second pin
The spring force of valve back-moving spring is by the second needle-valve jack-up, fuel gas injection；During piezoelectric element power-off, the second control valve back-moving spring will
The upper sealing surface of the second control valve is pressed on the second control valve seat, and control valve oil pocket and the second oil-in disconnect, control valve oil pocket
Connecting with the second drain tap, the fuel oil in needle chamber leaks in the second drain tap by central oil passage, control valve oil pocket, needle chamber
Interior pressure reduces, and the second needle-valve is pressed to needle-valve base by the second control valve back-moving spring, and combustion gas is not sprayed.
2, during electromagnetic valve coil energising, armature drive the first control valve overcome the spring force of the first control valve back-moving spring to
Upper motion, oil return opening connects with drain path, and fuel oil leaks into the first drain tap from controlling chamber by oil return opening, drain path,
Control intracavity fuel pressure to reduce, oil holding slot acts on the fuel oil on the first needle-valve, overcomes the bullet of the first needle-valve back-moving spring
First needle-valve jack-up, fuel oil are sprayed by spring force；During electromagnetic valve coil power-off, the first control valve back-moving spring is by the first control valve
Lower sealing surface is pressed on the first control valve seat, and oil return opening disconnects with drain path, and the first needle-valve is at the first needle-valve back-moving spring
Pressing to needle-valve base under effect, fuel oil does not sprays.
Advantage of the present utility model is: controls charged piston with boost electromagnetic valve and realizes the supercharging of combustion gas and fuel oil, combustion
Gas and the boost pressure of fuel oil and charging efficiency are high, can quickly realize fuel boosting jet and fuel cutting without boosting jet
Change, meet dual fuel engine different capacity to fuel gas injection pressure and the different requirements of fuel-injection pressure；Utilize fuel oil electricity
Magnet valve controls fuel nozzle and realizes fuel oil injection, utilizes piezoelectric element to control gas nozzle and realizes fuel gas injection, fuel injection spirit
Activity is high, can realize pure fuel injection mode and dual injection mode；By controlling boost electromagnetic valve, fuel solenoid valve, pressure
The duty of electric device and job order, hybrid fuel jet device can realize the injection of non pressurized fuel oil, supercharging fuel spray
Penetrate, non pressurized fuel oil/non pressurized combustion gas dual fuel injection and supercharging fuel/pressurized combustion gases dual fuel injection four kinds jet mode；
Gas nozzle uses piezoelectric element to control the motion of needle-valve, and needle lift is adjustable, and fuel gas injection amount and fuel gas injection rate control essence
Degree height；Fuel nozzle uses electromagnetic valve to control the motion of needle-valve, and fuel injection amount and fuel oil injection timing are controlled；Gas nozzle is used
Fuel oil controls needle-valve cavity pressure and realizes the motion of needle-valve, and improving combustion gas, to back down the fuel gas injection instability that needle-valve causes existing
As, can preferably meet system jetting stability requirement；Long mating band, increasing is used between charged piston and pressurizer shell
Pressure piston reset spring chamber, it is to avoid gas leakage, fuel pressurization chamber also plays the effect sealing combustion gas, improves combustion gas and increases
Pressure stability；Fuel oil at the needle chamber of gas nozzle and pintle nozzle match-ing parts is same oil, and oil pressure is equal, it is to avoid pintle nozzle match-ing parts
The fuel oil static leakage at place；Gas nozzle fuel sealing combustion gas, is conducive to avoiding combustion gas to be leaked by pintle nozzle match-ing parts, improves
Fuel gas injection pressure and injection rate, improve dynamic property and the fuel economy of electromotor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is compression portion schematic diagram of the present utility model；
Fig. 3 is that electromagnetism of the present utility model-piezoelectricity controls partial schematic diagram；
Fig. 4 is the schematic diagram of this utility model nozzle segment.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings and this utility model be described in more detail:
In conjunction with Fig. 1～4, the double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type of the present utility model
Mainly include compression portion 11, electromagnetism-piezoelectricity control part 2, nozzle segment 5, pressurizer shell 24, control crust of the device 1,
Injection apparatus shell 3, inlet channel 6, oil-feed oil duct 9, draining oil duct 4, orifice plate 10.Compression portion 11 is by air inlet 29, oil-feed
Mouth 20, pressurised oil oil-in 31, pressurised oil drain tap 14, charged piston 19, charged piston epicoele 30, combustion gas booster cavity 25, combustion
Oil booster cavity 23, charged piston back-moving spring 28, charged piston back-moving spring chamber 18, boost electromagnetic valve coil 34, supercharging armature
12, supercharger control valve 33, supercharger control valve back-moving spring 13, supercharger control valve oil pocket 15, pressurization control valve base 16, supercharging control
The first check valve 22 and the second check valve 26, first that valve return spring holder 32 processed, supercharger control valve drain tap 17, structure are identical
Check valve back-moving spring 21 and the second check valve back-moving spring 27 etc. form, and boost electromagnetic valve coil 34 is arranged on outside pressurizer
In shell 24, supercharging armature 12 is positioned at below boost electromagnetic valve coil 34, and the upper end of supercharger control valve 33 is stuck in supercharging by locating snap ring
On armature 12, supercharger control valve 33 lower end is pressed in supercharging control through the supercharger control valve return spring holder 32 below supercharging armature 12
On valve base 16 processed, the first check valve 22 right-hand member is connected by screw and is fixed on the first check valve little spring seat, and first is unidirectional
Valve back-moving spring 21 left end is stuck on the first one-way valve seat by the first check valve big spring seat, the first check valve back-moving spring 21
First check valve 22 left end is pressed on one-way valve seat by right-hand member by the first check valve little spring seat, the second check valve 26 and second
The mounting means of check valve back-moving spring 27 mounting means and the first check valve 22 and the first check valve back-moving spring 21 is identical, increases
Supercharger control valve oil pocket 15, pressurised oil oil-feed oil circuit is formed between pressure control valve return spring holder 32 and pressurization control valve base 16
14 are connected with supercharger control valve oil pocket 15 by the lower seal conical surface of supercharger control valve 33, and supercharger control valve oil pocket 15 passes through supercharging
The upper sealing cone of control valve 33 connects with pressurised oil draining oil circuit 28, and pressurization control valve base 16 has supercharger control valve draining
Mouth 17, pressurization control valve base 16 lower end is installed charged piston 19, is formed between pressurization control valve base 16 and charged piston 19
Charged piston epicoele 30, charged piston epicoele 30 connects with supercharger control valve oil pocket 15, pressurizer shell 24 and charged piston
Arranging charged piston back-moving spring chamber 18 between 19 outer ends, charged piston back-moving spring 28 is arranged on charged piston back-moving spring chamber
18 is internal, arranges combustion gas booster cavity 25 and fuel pressurization chamber 23, combustion gas between pressurizer shell 24 and charged piston 19 lower end
Booster cavity 25 connects air inlet 29 and connects with inlet channel 7, and fuel pressurization chamber 23 connects oil-in 20 and oil-feed oil duct 9.Orifice plate
10 are arranged on pressurizer shell 24 and control between crust of the device 1, fixed with alignment pin between orifice plate 10 and control crust of the device 1
Position.Electromagnetism-piezoelectricity controls part 2 and is made up of Electromagnetic Control part 35 and piezoelectricity control part 58, and Electromagnetic Control part 35 is main
Including electromagnetic fuel valve coil 36, armature the 37, first control valve the 42, first control valve seat the 44, first control valve back-moving spring 41,
First control valve return spring holder the 40, first oil-in 47, control piston 60, control chamber 46, oil return opening 45, oil-out 38, the
One drain tap 39, control valve drain tap 43, piezoelectricity controls part 58 and mainly includes that piezoelectric element 57, metallic gasket 56, conversion are lived
Plug 55, second control valve the 54, second control valve seat the 52, second control valve back-moving spring the 51, second control valve return spring holder 48,
Second oil-in 53, control valve oil pocket the 50, second drain tap 49, electromagnetic fuel valve coil 36 and armature 37 are arranged on control device
Shell 1 is internal, and the first control valve 42 upper end is stuck on armature 37 by locating snap ring, and the first control valve 42 lower end is pressed in the first control valve
On seat 44, the first control valve back-moving spring 41 top is pressed on the first control valve return spring holder 40, the first control valve reset bullet
Spring 41 bottom is stuck in the first control valve 42, and the first control valve 42 arranges the lower seal conical surface, the first control valve return spring holder 40
And use alignment pin location between the first control valve seat 44, between the first control valve seat 44 and control cavity, use alignment pin fixed
Position, controls piston 60 and controls to be formed between cavity to control chamber 46, the first control valve seat 44 arranges oil return opening 45 and control valve
Drain tap 43, the first control valve return spring holder 40 arranges oil-out 38 and the first drain tap 39, the first oil-in 47 and control
Chamber 46 processed, oil return opening 45 connect, and oil return opening 45 is connected with oil-out 38 by the lower seal conical surface of the first control valve 42, oil-out
38 are connected by fuel solenoid valve end and the first drain tap 39, and the first drain tap 39, control valve drain tap 43 are with draining oil duct 4 even
Logical, it is internal that piezoelectric element 57 is arranged on control crust of the device 1, arranges metallic gasket 56 below piezoelectric element 57, converts piston 55
Being stuck on metallic gasket 56, conversion piston 55 and the second control valve 54 below are pressed on the second control valve back-moving spring 51,
It is internal that second control valve 54 is arranged on the second control valve seat 52, and the second control valve back-moving spring 51 lower end is supported on the second control valve
On return spring holder 48, the second control valve 54 arranges sealing cone and the lower seal conical surface, the second control valve back-moving spring 51 with
Forming control valve oil pocket 50 between second control valve seat 52, the second control valve seat 52 has the second oil-in 53, second controls
Having the second drain tap 49 on valve return spring holder 48, the second oil-in 53 passes through upper sealing cone and the control of the second control valve 54
Valve oil chamber 50 processed connects, and control valve oil pocket 50 is connected by the lower seal conical surface and second drain tap 49 of the second control valve 54.Spray
Mouth portion 5 is made up of fuel nozzle part 59, gas nozzle part 74, needle-valve body fastening nut 71, needle-valve base 64, and fuel oil sprays
Mouth portion 59 mainly includes first needle-valve the 65, first needle-valve back-moving spring the 61, first needle-valve return spring holder the 62, the 3rd oil-in
63, oil holding slot 66, gas nozzle part 74 mainly includes the second needle-valve 68, gag lever post the 8, second needle-valve back-moving spring 7, center oil
Road 73, needle chamber 72, pressure tank the 67, the 4th oil-in 70, band 69, first needle-valve the 65, second needle-valve 68 is arranged on needle-valve
Base 64 is internal, and first needle-valve the 65, second needle-valve 68 is fixed on injection apparatus shell 3 by needle-valve body fastening nut 71, pin
Using alignment pin location between valve base 64 and injection apparatus shell 3, the first needle-valve back-moving spring 61 is arranged on control piston 60
Outside, the first needle-valve back-moving spring 61 is supported on the first needle-valve return spring holder 62, the first needle-valve return spring holder 62 and
One needle-valve 65 is connected and is arranged on spacing hole intralaminar part, forms oil holding slot 66, contain oil between the first needle-valve 65 and needle-valve base 64
Groove 66 connects with the 3rd oil-in 63, and drain path 4 connects with the first needle-valve back-moving spring chamber, and injection apparatus shell 3 is internal to be set
Putting gag lever post 8, it is internal that gag lever post 8 lower end is enclosed within the second needle-valve 68, and the second needle-valve back-moving spring 7 is arranged on gag lever post 8 outer end, the
Two needle-valve back-moving spring 7 lower ends are supported on the second needle-valve 68, and gag lever post 8 and the second needle-valve 68 arrange central oil passage along axis
73, central oil passage 73 connects control valve oil pocket 50 and needle chamber 72, forms needle-valve between the second needle-valve 68 and injection apparatus shell 3
Chamber 72, forms pressure tank 67, arranges ring between needle-valve base 64 and the second needle-valve 68 between the second needle-valve 68 and needle-valve base 64
Shape band 69, band 69 is connected with the 4th oil-in 70.Pressurizer shell 24 is provided with air inlet 29 and oil-in 20,
Air inlet 29 is connected with inlet channel 6 by compression portion 11, and inlet channel 6 is by controlling crust of the device 1, injection apparatus shell
3 enter in pressure tank 67；Oil-in 20 is connected with oil-feed oil duct 8 by compression portion 11, and oil-feed oil duct 8 is along controlling crust of the device
1 radially in hybrid fuel jet device, and axially downwardly enters in injection apparatus shell 3 along controlling crust of the device 1, oil-feed
Oil duct 9 separates two-way branch on control crust of the device 1, and a road branch enters Electromagnetic Control part 35 by the first oil-in 47
In, a road branch enters piezoelectricity by the second oil-in 53 and controls in part 58, and oil-feed oil duct 9 separates at injection apparatus shell 3
Two-way branch, a road branch enters in oil holding slot 66 by the 3rd oil-in 63, and a road branch is entered by the 4th oil-in 70
In band 69.
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type of the present utility model mainly includes increasing
Laminate section 11, electromagnetism-piezoelectricity controls part 2, nozzle segment 5, pressurizer shell 24, controls outside crust of the device 1, injection apparatus
Shell 3, inlet channel 6, oil-feed oil duct 9, drain path 4, orifice plate 10, compression portion 11 is lived by air inlet 29, oil-in 20, supercharging
The groups such as the first check valve 22 that plug 19, boost electromagnetic valve coil 34, supercharger control valve 33, structure are identical and the second check valve 26
Becoming, electromagnetism-piezoelectricity controls part 2 and is made up of Electromagnetic Control part 35 and piezoelectricity control part 58, and nozzle segment 5 is by fuel nozzle
Part 59, gas nozzle part 74, needle-valve body fastening nut 71, needle-valve base 64 form.Charged piston 19 is designed to top end face
Long-pending big, bottom area ladder diminishes, and utilizes difference in areas to realize fuel oil, combustion gas supercharging, and supercharger control valve 33 arranges sealing cone
Face and the lower seal conical surface, it is achieved switching between pressurised oil inlet and outlet of fuel channel in hybrid fuel jet device, supercharger control valve 33 times
End arranges taper surface, and balance pressurised oil hydraulic coupling suffered by supercharger control valve 33 lower sealing surface, pressurization control valve base 16 has
Annular plenum control valve drain tap 17, vents and flows to pressurization control from the gap of supercharger control valve 33 with pressurization control valve base 16
The pressurised oil of valve 33 bottom, it is to avoid pressurised oil produces active force upwards to supercharger control valve 33 thus reduces supercharger control valve 33
Control accuracy, the first control valve 42 arranges the lower seal conical surface, controls fuel oil draining in chamber 46, and the second control valve 54 is arranged
Sealing cone and the lower seal conical surface, it is achieved switching between fuel oil inlet and outlet of fuel channel in control valve oil pocket 50, oil-out 38 is by combustion
Solenoid end and the first drain tap 39 connect, and fuel solenoid valve end is full of fuel oil, can reduce fuel solenoid valve armature about 37
The shock and vibration of motion, thus improve the stability of fuel solenoid valve work, and during fuel oil draining, flow through fuel solenoid valve end,
Taking away fuel solenoid valve heat, play the effect of cooling fuel oil fuel solenoid valve, control valve drain tap 43 vents and controls from first
The gap of valve 42 and the first control valve seat 44 flows to the fuel oil of the first control valve 42 bottom, drain path 4 and the first needle-valve and resets
Spring cavity connects, and vents the fuel oil flowing to the first needle-valve back-moving spring chamber from the first pintle nozzle match-ing parts and control chamber 46, metallic gasket
56 effects playing isolation, it is to avoid piezoelectric element 57 touches piezoelectricity and controls the fuel oil that part 58 upwards leaks, and the first needle-valve is multiple
First needle-valve 65 is pressed to needle-valve base 64 by position spring 61, and the second needle-valve 68 is pressed to needle-valve base by the second needle-valve back-moving spring 7
64, between needle-valve base 64 and the second needle-valve 68, annular sealing strip 69 is set, by the 4th oil-in 70 and oil-feed oil duct 9 phase
Even, sealing the combustion gas leaked by pintle nozzle match-ing parts, pressure tank 67 plays the effect of stable air pressure, thus reduces air pressure fluctuation to combustion
The impact of gas jet.
During dual fuel engine work, combustion gas enters pressure tank from air inlet 29 by combustion gas booster cavity 25, inlet channel 6
In 67, fuel oil enters oil-feed oil duct 9 from oil-in 20 by fuel pressurization chamber 23, is divided into three tunnels, a road controlling crust of the device 1
Being entered by the first oil-in 47 and control in chamber 46 and oil return opening 45, the second oil-in 53 of leading up to enters piezoelectricity control portion
In points 58, a road enters injection apparatus shell 3, and is divided into two-way on injection apparatus shell 3, leads up to the 3rd oil-in 63
Entering in oil holding slot 66, the 4th oil-in 70 of leading up to enters in band 69.
When boost electromagnetic valve coil 34 is energized, supercharging armature 12 drives supercharger control valve 33 to overcome supercharger control valve reset bullet
The spring force of spring 13 moves upward, and the upper sealing cone of supercharger control valve 33 is pressed on the upper of supercharger control valve return spring holder 32
On sealing cone, supercharger control valve oil pocket 15 no longer connects with pressurised oil drain tap 14, pressurised oil oil-in 31 and pressurization control
Valve oil chamber 15 connects, and pressurised oil enters charged piston epicoele 30 from pressurised oil oil-in 31 by supercharger control valve oil pocket 15,
Pressurised oil acts on charged piston 19 top, overcomes the spring force of charged piston back-moving spring 28 to be pressed for 19 times by charged piston, increases
Pressure piston upper chamber 30 volume increases, and the volume of fuel pressurization chamber 23 and combustion gas booster cavity 25 reduces, and enters fuel pressurization chamber 23
Fuel oil is compressed, and the combustion gas entering combustion gas booster cavity 25 is compressed, and fuel pressure, gaseous-pressure increase.When fuel pressurization chamber 23
In fuel pressure and when the making a concerted effort more than fuel pressure in oil-in 20 of spring force of the first check valve back-moving spring 21, the
One check valve 22 moves right, fuel pressurization chamber 23 no longer connects with oil-in 20, it is to avoid supercharging fuel is let out from oil-in 20
Leakage, it is ensured that fuel pressurization efficiency；When the gaseous-pressure in combustion gas booster cavity 25 and the spring of the second check valve back-moving spring 27
When making a concerted effort more than gaseous-pressure in air inlet 29 of power, the second check valve 26 to left movement, combustion gas booster cavity 25 no longer with enter
QI KOU 29 connects, it is to avoid pressurized combustion gases leaks from air inlet 29, it is ensured that combustion gas charging efficiency.Boost electromagnetic valve coil 34 breaks
During electricity, supercharger control valve 33 moves downward under the effect of supercharger control valve back-moving spring 13, the lower seal of supercharger control valve 33
The conical surface is pressed on the lower seal conical surface of pressurization control valve base 16, pressurised oil oil-in 31 no longer with supercharger control valve oil pocket 15
Connection, supercharger control valve oil pocket 15 connects with pressurised oil drain tap 14, and pressurised oil passes through pressurization control from charged piston epicoele 30
Valve oil chamber 15 leaks in pressurised oil drain tap 14, and in charged piston epicoele 30, pressure reduces, and when pressure is reduced to certain value, increases
Pressure piston reset spring 28 is by charged piston 19 jack-up, when the fuel pressure in fuel pressurization chamber 23 and the first check valve reset bullet
When making a concerted effort to be less than the fuel pressure in oil-in 20 of the spring force of spring 21, the first check valve 22 is to left movement, fuel pressurization chamber
23 connect with oil-in 20, and fuel oil enters in hybrid fuel jet device；When the gaseous-pressure in combustion gas booster cavity 25 and second
When making a concerted effort to be less than the gaseous-pressure in air inlet 29 of the spring force of check valve back-moving spring 27, the second check valve 26 is transported to the right
Dynamic, combustion gas booster cavity 25 connects with air inlet 29, and combustion gas enters in hybrid fuel jet device.
When electromagnetic fuel valve coil 36 is energized, armature 37 drives the first control valve 42 to overcome the first control valve back-moving spring
The spring force of 41 moves upward, and oil return opening 45 connects with oil-out 38, and fuel oil is from controlling chamber 46 by oil return opening 45, oil-out
38, the first drain tap 39 quickly leaks in draining oil duct 4, controls chamber 46 fuel pressure and reduces rapidly, when pressure is reduced to one
During definite value, oil holding slot 66 acts on the fuel oil on the conical surface of the first needle-valve 65, overcome the spring of the first needle-valve back-moving spring 61
Power is by the first needle-valve 65 jack-up, and fuel oil starts injection.During electromagnetic fuel valve coil 36 power-off, the first control valve back-moving spring 41 will
The lower sealing surface of the first control valve 42 is pressed in the lower sealing surface of the first control valve seat 44, oil return opening 45 no longer with oil-out 38
Connection, now controls chamber 46 identical with the fuel pressure in oil holding slot 66, and the first needle-valve 65 is at the first needle-valve back-moving spring 61
Pressing to needle-valve base 64 under effect, fuel oil does not sprays.
When piezoelectric element 57 is energized, piezoelectric element 57 extends, and the second control valve 54 overcomes the second control valve back-moving spring 51
Spring force and control valve oil pocket 50 in the hydraulic coupling of fuel oil move downward, the lower sealing surface of the second control valve 54 is pressed on second
In the lower sealing surface of control valve return spring holder 48, control valve oil pocket 50 no longer connects with the second drain tap 49, control valve oil pocket
50 connect with the second oil-in 53, and fuel oil passes through the second oil-in 53, control valve oil pocket 50, central oil passage 73 from oil-feed oil duct 9
Entering in needle chamber 72, fuel oil acts on the second needle-valve 68 end face, overcomes the spring force of the second needle-valve back-moving spring 7 by second
Needle-valve 68 jack-up, combustion gas starts injection.During piezoelectric element 57 power-off, the second control valve back-moving spring 51 is by the second control valve 54
Upper sealing surface is pressed on the upper sealing surface of the second control valve seat 52, and control valve oil pocket 50 no longer connects with the second oil-in 53,
Control valve oil pocket 50 connects with the second drain tap 49, and the fuel oil in needle chamber 72 is let out by central oil passage 73, control valve oil pocket 50
Entering in the second drain tap 49, in needle chamber 72, pressure reduces, when pressure is reduced to certain value, and the second control valve back-moving spring 51
Second needle-valve 68 is pressed to needle-valve base 64, and combustion gas is not sprayed.
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type has four kinds of mode of operations: the first is
Electromagnetic fuel valve coil 36 is energized, and this mode of operation is non pressurized fuel injection mode；The second is boost electromagnetic valve coil 34
Being energized with electromagnetic fuel valve coil 36, this mode of operation is supercharging fuel jet mode；The third is electromagnetic fuel valve coil 36
Being initially powered up piezoelectric element 57 to be initially powered up, this mode of operation is non pressurized fuel oil/non pressurized combustion gas dual injection mode again,
The non pressurized combustion gas of gas nozzle injection is lighted after the non pressurized fuel oil compression ignition of fuel nozzle injection；4th kind is boost electromagnetic valve
Coil 34 and electromagnetic fuel valve coil 36 are first initially powered up piezoelectric element 57 again and are initially powered up, this mode of operation be supercharging fuel/
Pressurized combustion gases dual injection mode, lights the supercharging combustion of gas nozzle injection after the supercharging fuel compression ignition of fuel nozzle injection
Gas.
During dual fuel engine work, enter the gaseous-pressure in combustion gas booster cavity 25 relatively low, by charged piston 19 He
The combustion gas that gap between pressurizer shell 24 upwards leaks is few, and at the long mating band of charged piston couple and charged piston
Under the effect in back-moving spring chamber 18, the gas leakage amount of compression portion 11 almost can be ignored；The process of charged piston 19 motion
In, the pressurized combustion gases of combustion gas booster cavity 25 is upwards leaked by charged piston 19 couple, due to the long cooperation of charged piston couple
Band, combustion gas seldom can leak into charged piston back-moving spring chamber 18, decreases the leakage rate of pressurized combustion gases, and it is alive to leak into supercharging
Under the effect of that fraction combustion gas in plug back-moving spring chamber 18 pressurised oil in leaking into charged piston back-moving spring chamber 18 not
May proceed to upwards to leak, it is to avoid the further leakage of pressurized combustion gases；Fuel oil in fuel pressurization chamber 23 makes combustion gas booster cavity 25
In combustion gas will not be leaked downwards by gap between charged piston 19 and pressurizer shell 24；Enter the combustion of band 69
Oil, makes the combustion gas being accumulated in pressure tank 67 will not pass through the clearance leakage between the second needle-valve 68 and needle-valve base 64, thus
Avoid the combustion gas static leakage of hybrid fuel jet device；During the second needle-valve 68 motion, combustion gas in pressure tank 67
Upwards leaked by pintle nozzle match-ing parts, will not leak at the second needle-valve back-moving spring 7 under the fuel oil effect in band 69, directly
Connect the combustion gas dynamic leakage avoiding hybrid fuel jet device.
As shown in the above description, the double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type mainly includes
Compression portion, electromagnetism-piezoelectricity controls part and nozzle segment, and compression portion utilizes boost electromagnetic valve to control the motion of charged piston
The boost pressure and the charging efficiency that realize the supercharging of combustion gas and fuel oil, combustion gas and fuel oil are high, can quickly realize combustion gas supercharging spray
Penetrate with combustion gas without the switching of boosting jet, meet the different requirements to fuel gas injection pressure of the dual fuel engine different capacity；Electricity
Magnetic-piezoelectricity control part utilizes fuel solenoid valve to control fuel nozzle and realizes fuel oil injection, utilizes piezoelectric element to control gas injection
Mouth realizes fuel gas injection, and fuel injection motility is high, it is possible to achieve pure fuel injection mode and dual injection mode；Meanwhile,
Gas nozzle utilizes fuel sealing combustion gas, can preferably solve the problem that combustion gas is leaked by pintle nozzle match-ing parts, can effectively carry
The dynamic property of high electromotor and fuel economy.
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type, including compression portion, electromagnetism-piezoelectricity
Control part, nozzle segment, pressurizer shell, control crust of the device, injection apparatus shell, inlet channel, oil-feed oil duct, let out
Oil oil duct etc..Compression portion is identical by air inlet, oil-in, charged piston, boost electromagnetic valve coil, supercharger control valve, structure
The first check valve and the composition such as the second check valve, electromagnetism-piezoelectricity controls part and is controlled part by Electromagnetic Control part and piezoelectricity
Composition, nozzle segment is made up of fuel nozzle part, gas nozzle part, needle-valve body fastening nut, needle-valve base.Described increasing
Pressure device shell is provided with air inlet and oil-in, and air inlet is connected with inlet channel by compression portion, and inlet channel passes through
Control crust of the device, injection apparatus shell enters in pressure tank；Oil-in is connected with oil-feed oil duct by compression portion, oil-feed
Oil duct is along controlling crust of the device radially in hybrid fuel jet device, and axially downwardly enters injection along controlling crust of the device
In crust of the device, oil-feed oil duct separates two-way branch on control crust of the device, and a road branch enters electricity by the first oil-in
In magnetic control part, a road branch enters piezoelectricity by the second oil-in and controls in part, and oil-feed oil duct is at injection apparatus shell
Separating two-way branch, a road branch enters in oil holding slot by the 3rd oil-in, and a road branch enters close by the 4th oil-in
In envelope band；
Boost electromagnetic valve coil is arranged in pressurizer shell, and supercharging armature is positioned at below boost electromagnetic valve coil, increases
The upper end of pressure control valve is stuck on supercharging armature by locating snap ring, and supercharger control valve lower end is pressed on pressurization control valve base, and first
Check valve right-hand member is connected by screw and is fixed on the first check valve little spring seat, and the first check valve back-moving spring left end is by the
One check valve big spring seat is stuck on the first one-way valve seat, and the first check valve back-moving spring right-hand member passes through the first check valve little spring
First check valve left end is pressed on the first one-way valve seat by seat, the second check valve and the second check valve back-moving spring mounting means with
The mounting means of the first check valve and the first check valve back-moving spring is identical.
Supercharger control valve arranges sealing cone and the lower seal conical surface, supercharger control valve return spring holder and supercharger control valve
Forming supercharger control valve oil pocket between base, pressurised oil oil-feed oil circuit passes through the lower seal conical surface and the pressurization control of supercharger control valve
Valve oil chamber connects, and supercharger control valve oil pocket is by the upper sealing cone of supercharger control valve and pressurised oil draining oil communication, supercharging
Control valve base has supercharger control valve drain tap, and charged piston, pressurization control valve base are installed in pressurization control valve base lower end
And forming charged piston epicoele between charged piston, charged piston epicoele connects with supercharger control valve oil pocket, pressurizer shell
And arranging charged piston back-moving spring chamber between charged piston outer end, charged piston back-moving spring is arranged on charged piston reset bullet
Spring intracavity portion, arranges combustion gas booster cavity and fuel pressurization chamber, combustion gas booster cavity between pressurizer shell and charged piston lower end
Connection air inlet connects with inlet channel, fuel pressurization chamber connection oil-in and oil-feed oil duct.
Electromagnetic Control part includes electromagnetic fuel valve coil and the first control valve.Electromagnetic fuel valve coil is arranged on control dress
Putting enclosure, arrange armature below electromagnetic fuel valve coil, the first control valve upper end is stuck on armature by locating snap ring, the first control
Valve lower end processed is pressed on the first control valve seat, and the first control valve back-moving spring top is pressed on the first control valve return spring holder,
First control valve back-moving spring bottom is stuck in the first control valve, and the first control valve arranges the lower seal conical surface, controls piston and control
Formed between cavity processed and control chamber, the first control valve seat arranges oil return opening and control valve drain tap, the first oil-in and control
Chamber, oil return opening connection, oil return opening is connected with oil-out by the lower seal conical surface of the first control valve, and oil-out passes through electromagnetic fuel
Valve end and the connection of the first drain tap, the first drain tap, control valve drain tap connect with draining oil duct.
Piezoelectricity control part includes piezoelectric element and the second control valve.Piezoelectric element is arranged on inside control crust of the device,
Arranging metallic gasket below piezoelectric element, conversion piston is stuck on metallic gasket, conversion piston and the second control valve below
Being pressed on the second control valve back-moving spring, the second control valve is arranged on inside the second control valve seat, the second control valve back-moving spring
Lower end is supported on the second control valve return spring holder, and the second control valve arranges sealing cone and the lower seal conical surface, the second control
Forming control valve oil pocket between valve return spring holder processed and the second control valve seat, the second oil-in is upper close by the second control valve
The envelope conical surface connects with control valve oil pocket, and control valve oil pocket is connected by the lower seal conical surface and second drain tap of the second control valve.
Fuel nozzle part includes the first needle-valve and the first needle-valve back-moving spring.First needle-valve back-moving spring is arranged on control
Piston exterior, the first needle-valve back-moving spring is supported on the first needle-valve return spring holder, the first needle-valve return spring holder and first
Needle-valve is connected, and forms oil holding slot between the first needle-valve and needle-valve base, and oil holding slot and the 3rd oil-in connect, drain path 4 and
Oil pocket connection residing for first needle-valve back-moving spring.
Gas nozzle part includes gag lever post and the second needle-valve.Gag lever post lower end is enclosed within inside the second needle-valve, the second needle-valve
Back-moving spring is arranged on gag lever post outer end, and the second needle-valve back-moving spring lower end is supported on the second needle-valve, the second needle-valve and injection
Form needle chamber, gag lever post and the second needle-valve between crust of the device and central oil passage, central oil passage connection control valve are set along axis
Oil pocket and needle chamber, between the second needle-valve and needle-valve base formed pressure tank, pressure tank connects with inlet channel, needle-valve base with
Arrange annular sealing strip, band and the 4th oil-in between second needle-valve to be connected.
Claims (3)
1. the double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type, is characterized in that: include compression portion, spray
Injection device shell, control crust of the device, piezo jet part, electromagnetic injection part, needle-valve base, oil-feed oil duct, draining oil duct,
Inlet channel, controls crust of the device and is arranged in injection apparatus shell, oil-feed oil duct, draining oil duct, the most through control of inlet channel
Crust of the device processed and injection apparatus shell, needle-valve base is arranged on below injection apparatus shell by fastening nut, described needle-valve
Base includes piezoelectricity base and electromagnetic base；
Described compression portion includes pressurizer shell, supercharger control valve, boost electromagnetic valve coil, supercharging armature, pressurization control
Valve back-moving spring, supercharger control valve return spring holder, pressurization control valve base, charged piston, the first check valve, second unidirectional
Valve, pressurizer shell is arranged on above control crust of the device, pressurizer shell arranges pressurised oil oil-in, pressurised oil is let out
Hydraulic fluid port, air inlet, oil-in, boost electromagnetic valve coil is arranged in pressurizer shell, and supercharging armature is positioned at boost electromagnetic valve
Below coil, the upper end of supercharger control valve is stuck on supercharging armature by locating snap ring, and the lower end of supercharger control valve is held in the mouth through supercharging
Supercharger control valve return spring holder below ferrum is pressed on pressurization control valve base, supercharger control valve is arranged sealing cone and
The lower seal conical surface, forms supercharger control valve oil pocket, pressurised oil between supercharger control valve return spring holder and pressurization control valve base
Oil-in is connected with supercharger control valve oil pocket by the lower seal conical surface of supercharger control valve, and supercharger control valve oil pocket passes through supercharging control
The upper sealing cone of valve processed connects with pressurised oil drain tap, and pressurization control valve base has supercharger control valve drain tap, and supercharging is lived
Plug is arranged on the lower section of pressurization control valve base, forms charged piston epicoele, increase between pressurization control valve base and charged piston
Pressure piston upper chamber connect with supercharger control valve oil pocket, in the middle part of pressurizer shell and charged piston between formed charged piston reset
Spring cavity, charged piston back-moving spring is placed on charged piston and is positioned at charged piston back-moving spring intracavity portion, outside pressurizer
Form combustion gas booster cavity between shell and charged piston middle and lower part, between pressurizer shell and charged piston bottom, form fuel oil
Booster cavity, the first check valve and the second check valve are installed in pressurizer shell, the import of the first check valve and oil-in
Being connected, the import of the second check valve is connected with air inlet, the outlet fuel pressurization chamber of the first check valve, fuel pressurization
Chamber connection oil-feed oil duct, the outlet combustion gas booster cavity of the second check valve, combustion gas booster cavity connection inlet channel；
Described electromagnetic injection part includes that electromagnetic valve coil, armature, the first control valve, the first control valve seat, the first control valve are multiple
Position spring, the first control valve return spring holder, control piston, electromagnetic valve coil and armature are arranged on inside control crust of the device,
Being armature chamber at armature place, the first control valve upper end is stuck on armature by locating snap ring, and the first control valve is through the first control
Valve return spring holder is also pressed on the first control valve seat, is formed and control between bottom and first control valve seat of the first control valve
Valve draining chamber, forms draining chamber, the first control valve back-moving spring between the first control valve return spring holder and the first control valve seat
Being enclosed within the first control valve, the top of the first control valve back-moving spring withstands on the first control valve return spring holder, and first controls
The bottom of valve back-moving spring is stuck in the first control valve, and the first control valve arranges the lower seal conical surface, sets below the first control valve seat
Putting control cavity, the upper end of control piston is arranged in control cavity and and controls to form control chamber between cavity, the first control
Drain path and the first drain tap, drain path connection armature chamber and draining chamber, the first draining are set on valve return spring holder processed
Mouth connection armature chamber and draining oil duct, the first control valve seat arranges oil return opening and control valve drain tap, controls chamber by controlling
The first oil-in connection oil-feed oil duct in crust of the device, one end connection of oil return opening controls chamber, and the other end of oil return opening passes through
The lower sealing surface of the first control valve realizes the connection with draining chamber or disconnection, control valve drain tap connection draining oil duct, controls to live
The bottom of plug connects the first needle-valve return spring holder, and the first needle-valve is arranged in electromagnetic base and is positioned at the first needle-valve reset bullet
Below spring abutment, control to be cased with the first needle-valve back-moving spring on piston, form oil holding slot between the first needle-valve and electromagnetic base, contain oil
Groove connection oil-feed oil duct；
Described piezo jet part includes piezoelectric element, conversion piston, the second control valve, the second control valve seat, the second control valve
Return spring holder, gag lever post, the second needle-valve, the second needle-valve back-moving spring, piezoelectric element is arranged in control crust of the device, piezoelectricity
Arranging metallic gasket below element, conversion piston upper end is stuck on metallic gasket, arranges the second control valve below conversion piston, the
Two control valves are arranged on inside the second control valve seat, and the second control valve arranges sealing cone and the lower seal conical surface, upper close
Being cased with the second control valve back-moving spring between the envelope conical surface and the lower seal conical surface, the second control valve back-moving spring lower end is supported on second
On control valve return spring holder, formation control valve oil pocket between the second control valve return spring holder and the second control valve seat, second
Having the second oil-in on control valve seat, the second control valve return spring holder has the second drain tap, the second oil-in passes through
The upper sealing cone of control valve realizes connecting or disconnecting with control valve oil pocket, the control valve oil pocket lower seal conical surface by control valve
Realizing connecting or disconnecting with the second drain tap, gag lever post is arranged on below the second control valve return spring holder, the lower end of gag lever post
Being placed on inside the second needle-valve, the second needle-valve back-moving spring is enclosed within outside gag lever post, and the lower end of the second needle-valve back-moving spring is supported on
On second needle-valve, the second needle-valve is arranged in the piezoelectricity base of needle-valve base, is formed between the second needle-valve and injection apparatus shell
Needle chamber, gag lever post and the second needle-valve arrange central oil passage, central oil passage connection control valve oil pocket and needle chamber along axis, seal
Band is connected with oil-feed oil duct, pressure tank connection inlet channel.
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type the most according to claim 1, its feature
Being: during piezoelectric element energising, piezoelectric element extends, and the second control valve overcomes spring force and the control of the second control valve back-moving spring
The hydraulic coupling of valve oil intracavity fuel oil moves downward, and the lower sealing surface of the second control valve is pressed on the second control valve return spring holder,
Control valve oil pocket and the second drain tap disconnect, and control valve oil pocket and the connection of the second oil-in, fuel oil passes through second from oil-feed oil duct
Oil-in, control valve oil pocket, central oil passage enter in needle chamber, and fuel oil acts on the second needle-valve, overcome the second needle-valve to reset
The spring force of spring is by the second needle-valve jack-up, fuel gas injection；During piezoelectric element power-off, the second control valve back-moving spring is controlled second
The upper sealing surface of valve processed is pressed on the second control valve seat, and control valve oil pocket and the second oil-in disconnect, control valve oil pocket and second
Drain tap connects, and the fuel oil in needle chamber leaks in the second drain tap by central oil passage, control valve oil pocket, needle-valve cavity pressure
Reducing, the second needle-valve is pressed to needle-valve base by the second control valve back-moving spring, and combustion gas is not sprayed.
The double supercharging electromagnetic fuel injection-piezoelectricity jet hybrid fuel jet device of combination type the most according to claim 1 and 2, its
Feature is: during electromagnetic valve coil energising, armature drives the first control valve to overcome the spring force of the first control valve back-moving spring upwards
Motion, oil return opening connects with drain path, and fuel oil leaks into the first drain tap from controlling chamber by oil return opening, drain path, control
Intracavity fuel pressure processed reduces, and acts on the fuel oil on the first needle-valve, overcome the spring of the first needle-valve back-moving spring in oil holding slot
First needle-valve jack-up, fuel oil are sprayed by power；During electromagnetic valve coil power-off, the first control valve back-moving spring is by under the first control valve
Sealing surface is pressed on the first control valve seat, and oil return opening disconnects with drain path, and the first needle-valve is at the work of the first needle-valve back-moving spring
Pressing to needle-valve base under with, fuel oil does not sprays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338810.2U CN205779392U (en) | 2016-04-21 | 2016-04-21 | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338810.2U CN205779392U (en) | 2016-04-21 | 2016-04-21 | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type |
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| Publication Number | Publication Date |
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| CN205779392U true CN205779392U (en) | 2016-12-07 |
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|---|---|---|---|
| CN201620338810.2U Withdrawn - After Issue CN205779392U (en) | 2016-04-21 | 2016-04-21 | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet device of combination type |
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| CN (1) | CN205779392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756822A (en) * | 2016-04-21 | 2016-07-13 | 哈尔滨工程大学 | Combined dual pressurizing electromagnetic fuel oil injection and piezoelectric fuel gas injection mixed fuel injection device |
| WO2023206881A1 (en) * | 2022-04-27 | 2023-11-02 | 中船动力研究院有限公司 | Dual-fuel pressurized injection device |
-
2016
- 2016-04-21 CN CN201620338810.2U patent/CN205779392U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756822A (en) * | 2016-04-21 | 2016-07-13 | 哈尔滨工程大学 | Combined dual pressurizing electromagnetic fuel oil injection and piezoelectric fuel gas injection mixed fuel injection device |
| CN105756822B (en) * | 2016-04-21 | 2018-01-19 | 哈尔滨工程大学 | The double supercharging electromagnetic fuel injection piezoelectricity jet hybrid fuel jet devices of combined type |
| WO2023206881A1 (en) * | 2022-04-27 | 2023-11-02 | 中船动力研究院有限公司 | Dual-fuel pressurized injection device |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180119 |