CN205714524U - Combined mechanical oil spout-electromagnetism jet hybrid fuel jet device - Google Patents
Combined mechanical oil spout-electromagnetism jet hybrid fuel jet device Download PDFInfo
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- CN205714524U CN205714524U CN201620338989.1U CN201620338989U CN205714524U CN 205714524 U CN205714524 U CN 205714524U CN 201620338989 U CN201620338989 U CN 201620338989U CN 205714524 U CN205714524 U CN 205714524U
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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 combined mechanical oil spout electromagnetism jet hybrid fuel jet device, including control part, crosspointer valve nozzle part, injection apparatus upper end cover and injection apparatus housing.Use crosspointer valve nozzle injection fuel oil and two kinds of fuel of combustion gas, save space and simplify engine structure, employing frame for movement control injection process, simple in construction is good to existing diesel inheritance.This utility model controls oil draining oil circuit and flows through electromagnetic valve body top, plays the effect of cooling electromagnetic valve, increases the stability of electromagnetic valve work；Above fuel chamber, it is designed with seal band between combustion gas needle-valve and needle-valve base, introducing portion controls oil and seals combustion gas to seal band, gas leakage can be effectively prevented, the Seal Oil at oil and seal band that controls simultaneously controlling intracavity uses same oil, can effectively ensure that control oil, Seal Oil are without static leakage.
Description
Technical field
The utility model relates to a kind of injection apparatus, specifically dual fuel engine injection apparatus.
Background technology
Along with constantly consuming and the increasingly stringent of engine exhaust regulation of Fossil fuel, the development of electromotor is faced with the dual-pressure of energy crisis and problem of environmental pollution, and use alternative fuel is to solve energy problem and the effective means of problem of environmental pollution simultaneously.Natural gas, oil gas etc., with its aboundresources, the advantage such as cheap, combustion cleaning, calorific value are big, become the main substitute fuel of current internal combustion engine.
The fuel feeding method of dual fuel engine mainly has two kinds at present: a kind of is it to be mixed with the air sucked before gaseous fuel is introduced into cylinder, certain quantity of fluid fuel is directly sprayed again to the near top dead center of combustor, thus pilot gas fuel, this mode easily causes combustion knock, during this external engine low load, the combustion gas of premixing is the thinnest is unfavorable for burning.Another way is combustion gas to be injected directly in combustor, the same liquid fuel using pilot quantity triggers gas fuel combustion, this mode will not cause electromotor premature detonation, and fuel burns under diffusion combustion mode, combustion efficiency is good, but it there is also certain problem: one, in Modern Engine cylinder head, structure is complicated, parts are many, how to arrange that two ejectors exist certain difficulty, if additionally installing two ejector injection double fuels original diesel engine need to be carried out bigger change, increasing device processing and assembling complexity.Its two, injection apparatus requires height to gas sealing, and along with the motion of needle-valve, combustion gas upwards leaks along pintle nozzle match-ing parts gap, and leakage combustion gas enters and controls chamber and cause fuel gas injection pressure and injection rate to reduce, and has a strong impact on device job stability.
Summary of the invention
The purpose of this utility model is to provide and meets electromotor under different operating modes to oil, the requirement of gas mixing, the combined mechanical oil spout that functional reliability is high-electromagnetism jet hybrid fuel jet device.
The purpose of this utility model is achieved in that
This utility model combined mechanical oil spout-electromagnetism jet hybrid fuel jet device, it is characterized in that: include injection apparatus body, injection apparatus upper end cover, injection apparatus inner core, needle-valve base, fuel oil spout part, fuel gas injection part, injection apparatus upper end cover is arranged on above injection apparatus body, needle-valve base is arranged on below injection apparatus body by nozzle cage, injection apparatus inner tube installation is in injection apparatus body, and described needle-valve base includes fuel oil base and combustion gas base；
Described fuel oil spout part includes lock nut, pressure regulating screw, regulation spring, fuel pin push rod, fuel pin, lock nut is arranged on outside pressure regulating screw, pressure regulating screw is threadeded with injection apparatus inner core, lock nut, pressure regulating screw is arranged in injection apparatus body, fuel pin push rod is set in injection apparatus inner core, pressure spring is installed between fuel pin push rod and pressure regulating screw, in fuel oil base, fuel pin is set, fuel pin is positioned at below fuel pin push rod, fuel oil base end arranges fuel oil spray orifice, oil holding slot is formed between fuel pin and fuel oil base, fuel oil fuel inlet fitting it is respectively provided with on injection apparatus body, low pressure drain tap, fuel oil fuel inlet fitting connection oil holding slot, on injection apparatus inner core, annular oil groove is set, annular oil groove is respectively communicated with lock nut place cavity and low pressure drain tap；
nullDescribed fuel gas injection part includes the control gas electromagnetic valve being arranged in injection apparatus inner core、Combustion gas needle-valve gag lever post and the combustion gas needle-valve being arranged in combustion gas base，Described control gas electromagnetic valve includes electromagnetic valve body、Electric magnet、Armature、Sealed base on valve rod、Valve rod lower seal base、Electromagnetic valve spring、Electromagnetic valve valve rod，Electromagnetic valve body、Valve rod upper seal support、Valve rod bottom sealing socket and combustion gas needle-valve gag lever post are arranged from top to bottom，Electromagnetism valve pocket is formed between sealed base on electromagnetic valve body and valve rod，Groove cavity is formed between sealed base and valve rod lower seal base on valve rod，Electric magnet is arranged in electromagnetism valve pocket，Armature is positioned at below electric magnet，One end of electromagnetic valve valve rod is stuck on armature by locating snap ring，The other end runs through sealed base on the valve rod below armature，And match with valve rod lower seal base，The upper sealing cone coordinated with sealed base on valve rod and the lower seal conical surface with valve rod lower seal base engagement it is respectively provided with on electromagnetic valve valve rod，The part that electromagnetic valve valve rod matches with sealed base on valve rod forms low pressure oil annulus，The part that electromagnetic valve valve rod matches with valve rod lower seal base forms hydraulic oil annulus，First oil duct and the 4th oil duct are set on sealed base on valve rod，Second oil duct and the 3rd oil duct are set on valve rod lower seal base，5th oil duct is set in injection apparatus inner core，Control oil-in is set on injection apparatus body，First oil duct connection electromagnetism valve pocket and low pressure drain tap，Second oil duct connection hydraulic oil annulus and control oil-in，In combustion gas needle-valve gag lever post, central oil passage is set，3rd oil duct communication groove chamber and central oil passage，4th oil duct connection low pressure oil annulus electromagnetism valve pocket，Combustion gas needle-valve is positioned at below combustion gas needle-valve gag lever post，Formed respectively between combustion gas needle-valve and combustion gas base and seal circuit and fuel chamber，Seal circuit and control oil-in by the 5th oil duct connection，Fuel chamber is by the fuel gas inlet on the blast tube connection injection apparatus upper end cover in injection apparatus inner core，Combustion gas base end arranges gas jet orifice.
This utility model can also include:
1, combustion gas needle-valve upper end is designed with annular step, forms combustion gas needle control chamber below annular step and between injection apparatus body, and combustion gas needle-valve gag lever post lower end is enclosed within inside the annular step of combustion gas needle-valve, and combustion gas needle control chamber and groove cavity communicate.
2, when control gas electromagnetic valve is not powered on, electromagnetic valve valve rod is pressed on valve rod lower seal base, and hydraulic oil annulus is closed, low pressure oil annulus is opened, and combustion gas needle control chamber connects with low pressure drain tap；When controlling gas electromagnetic valve energising, electromagnetic valve valve rod lifts and is pressed on valve rod on sealed base, and low pressure oil annulus is closed, hydraulic oil annulus is opened, and combustion gas needle control chamber connects with controlling oil-in.
Advantage of the present utility model is: combined mechanical oil spout of the present utility model-electromagnetism jet hybrid fuel jet device uses crosspointer valve nozzle two kinds of fuel of injection, saves space and simplifies engine structure.Frame for movement is used to control injection process, good to existing diesel inheritance, simple in construction；Using electromagnetic valve to control the course of injection of combustion gas, fuel gas injection amount controllable precise, injection apparatus can meet electromotor under different operating modes to oil, the requirement of gas mixing at pure diesel fuel mode and oil pilot combustion gas MODE of operation, and functional reliability is high.
This device also has following beneficial effect simultaneously: this device controls oil draining oil circuit and flows through electromagnetic valve body top, walks heat to reduce electromagnetic valve portion temperature by draining tape loop, it is ensured that the reliability and stability of electromagnetic valve work.It is designed with seal band between combustion gas needle-valve and needle seating, introducing portion controls oil and seals combustion gas as Seal Oil, gas leakage can be effectively prevented, the Seal Oil controlled in oil and seal band simultaneously controlling intracavity uses same oil, oil pressure is equal, control oil, Seal Oil can be effectively ensured without static leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 a is control part-structure schematic diagram of the present utility model, and Fig. 2 b is for controlling gas electromagnetic valve structural representation, and Fig. 2 c is to control schematic diagram when electromagnetic valve is not powered on, schematic diagram when Fig. 2 d is to control solenoid valves；
Fig. 3 is the structural representation of 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. 1～3, combined mechanical oil spout of the present utility model-electromagnetism jet hybrid fuel jet device is mainly made up of control part 1, crosspointer valve nozzle part 4, oil inlet filter element 6, injection apparatus body 7 and injection apparatus upper end cover 8.Being designed with low pressure drain tap 2 on injection apparatus body 7, control oil-in 3, fuel oil fuel inlet fitting 5 etc., fuel gas inlet 9 is positioned on injection apparatus upper end cover 8, and fuel oil oil inlet filter element 6 is positioned at fuel oil fuel inlet fitting 5.
Control part 1 and be positioned at injection apparatus body 7, mainly include controlling gas electromagnetic valve 10, combustion gas needle-valve gag lever post 11, combustion gas needle valve spring 13, combustion gas needle control chamber 14, fuel pin push rod 15, injection apparatus inner core 16, pressure spring 17, pressure regulating screw 19, lock nut 20 etc., each parts all position, are arranged in injection apparatus inner core 16, it is designed with annular oil groove 18 on injection apparatus inner core 16, combustion gas needle-valve gag lever post 11 is designed with central oil passage 12.Pressure spring 17 is arranged between pressure regulating screw 19 and fuel pin push rod 15, it is threaded connection between pressure regulating screw and injection apparatus inner core 16, being pressed on fuel pin push rod 15 by pressure spring 17, under pressure spring 17 pretightning force effect, fuel pin 45 pushed down by fuel pin push rod 15.By adjusting pressure regulating screw 19 position, pressure spring 17 pretightning force can be changed, thus change the unlatching pressure of fuel pin 45.The fuel oil of combustion gas needle-valve 45 and needle-valve spigot surface seepage flows through pressure regulating screw 19, lock nut 20, then flows to low pressure drain tap 2 from annular oil groove 18.Control gas electromagnetic valve 10 and mainly include sealed base 26 on electromagnetic valve body 21, electric magnet 22, coil 23, armature 24, valve rod, electromagnetic valve spring 27, electromagnetic valve valve rod 28, valve rod lower seal base 29, locating snap ring 37 etc..Form electromagnetism valve pocket 36 on electromagnetic valve body 21 and valve rod between sealed base 26, valve rod is formed between sealed base 26 and valve rod lower seal base 29 groove cavity 33.Electric magnet 22 is arranged in the electromagnetism valve pocket 36 of electromagnetic valve body 21, armature 24 is positioned at below electric magnet 22, one end of electromagnetic valve valve rod 28 is stuck on armature 24 by locating snap ring 37, and the other end runs through sealed base 26 on the valve rod below armature 24, is pressed on valve rod lower seal base 29.Two sealing cones it are designed with on electromagnetic valve valve rod 28, and it is designed with hydraulic oil annulus 32 and low pressure oil annulus 34, when control gas electromagnetic valve 10 is not powered on, electromagnetic valve valve rod 28 is pressed on valve rod lower seal base 29 under the effect of electromagnetic valve spring 27, hydraulic oil annulus 32 is closed, low pressure oil annulus 34 is opened, as shown in Figure 2 c, now combustion gas needle control chamber 14 connects with low pressure drain tap 2；When control gas electromagnetic valve 10 is energized, electromagnetic valve valve rod 28 lifts and is pressed on valve rod on sealed base 26, and low pressure oil annulus 34 is closed, hydraulic oil annulus 32 is opened, and as shown in Figure 2 d, now combustion gas needle control chamber 14 connects with controlling oil-in 3.Being designed with oil duct 25 and oil duct 35 on valve rod on sealed base 26, oil duct 35 connects low pressure oil annulus 34 and electromagnetism valve pocket 36, and oil duct 25 connects electromagnetism valve pocket 36 and annular oil groove 18.Designing oil duct 30 and oil duct 31 on valve rod lower seal base 29, oil duct 30 connects hydraulic oil annulus 32 and controls oil-in 3, oil duct 31 communication groove chamber 33 and the central oil passage 12 of combustion gas needle-valve gag lever post 11.This device draining oil circuit flows through electromagnetic valve, takes away dual-coil electromagnetic valve heat under fuel flow effect, plays the effect of cooling electromagnetic valve, and reduces the shock and vibration that electromagnetic valve armature moves up and down, thus improves the stability of dual-coil electromagnetic valve work.Crosspointer valve nozzle part 4 is positioned at below injection apparatus body 7, mainly includes combustion gas needle-valve 38, fuel pin 45, needle-valve base 48, nozzle cage 49, sealing ring 50 etc., and combustion gas needle-valve 38 and fuel pin 45 share a needle-valve base 48.Have gas inlet passage and air inlet duct in the middle of needle-valve base 48, and both sides all have oil-feed tank and oil input channel.High-pressure gas is introduced fuel chamber 42 to meet injection apparatus air inlet requirement by middle air flue, and high pressure fuel is introduced oil holding slot 46 to meet injection apparatus oil-feed requirement by side oil duct, and part is controlled oil by opposite side oil duct to be introduced seal band 40 and seal combustion gas.Combustion gas needle-valve 38 upper end is designed with annular step, below annular step, combustion gas needle control chamber 14 is formed between combustion gas needle-valve 38 and injection apparatus body 7, combustion gas needle-valve 38 and combustion gas needle-valve gag lever post 11 are co-axially mounted, and control oil central oil passage 12 on combustion gas needle-valve gag lever post 11 and enter combustion gas needle control chamber 14.Combustion gas needle-valve 38 is pressed on needle-valve base 48 closedown gas jet orifice 43 under the pretightning force effect of combustion gas needle valve spring 13.Combustion gas fuel gas inlet 9 from injection apparatus upper end cover 8 is by the central airway on injection apparatus inner core 16, then is entered fuel chamber 42 by the air flue 41 on needle-valve base 48.Above fuel chamber 42, between combustion gas needle-valve 38 and needle-valve base 48, it is designed with seal band 40, controls oil by oil duct 39 introducing portion on needle-valve base 48 and seal combustion gas to seal band 40.Fuel pin 45, under the effect of pressure spring 17, is pressed on needle-valve base 48 closedown fuel oil spray orifice 44 by fuel pin push rod 15.Use threaded between nozzle cage 49 and injection apparatus body 7 and be designed with sealing ring 50, preventing high temperature, the combustion gas entrance injection apparatus crosspointer valve nozzle part of high pressure in cylinder.
The gas nozzle injection combustion gas of combined mechanical oil spout of the present utility model-electromagnetism jet hybrid fuel jet device, during combustion gas needle-valve lifts and takes a seat, combustion gas easily upwards leaks along with the motion of valve rod, when the combustion gas of leakage enters combustion gas needle control chamber 14, owing to the compressibility of combustion gas can have a strong impact on its jet characteristic.In order to solve this problem, combination type hybrid fuel jet device of the present utility model has seal band 40 between combustion gas needle-valve 38 and needle-valve base 48, controls oil seal combustion gas by oil duct introducing portion, can be effectively prevented gas leakage.It addition, the Seal Oil controlled in oil and seal band 40 in combustion gas needle control chamber 14 uses same oil, the upper and lower oil pressure of needle-valve is equal, control oil, Seal Oil can be effectively ensured without static leakage.
During electromotor work, fuel injection processes is by frame for movement control, the fuel oil of high-pressure oil pipe is from fuel inlet fitting 5, fuel filter 6, flow through oil duct and enter oil holding slot, when reaching fuel pin unlatching pressure, overcoming pressure spring pretightning force to make fuel pin disseat, fuel oil spray orifice 44 commencement of fuel injection, the pretightning force of pressure spring can regulate with pressure regulating screw.Fuel gas injection process is gathered the input signal of sensor by electromagnetic valve control, control unit, drives control gas electromagnetic valve 10 to work, thus controls fuel gas injection.When control gas electromagnetic valve 10 is energized, electromagnetism valve rod 28 lifts, hydraulic oil annulus 32 is opened, low pressure oil annulus 34 is closed, high voltage control oil flows through hydraulic oil annulus 32, groove cavity 33, the central oil passage 12 of combustion gas needle-valve gag lever post 11 successively, flow into combustion gas needle control chamber 14, combustion gas needle-valve 38 lifts rapidly under combustion gas needle control chamber 14 inner high voltage oil effect, and gas jet orifice 43 is opened, and starts jet；When controlling gas electromagnetic valve 10 power-off, under electromagnetic valve spring 27 acts on, electromagnetism valve rod 28 is pressed on valve rod lower seal base 29, hydraulic oil annulus 32 turns off, low pressure oil annulus 34 is opened, combustion gas needle control chamber 14 inner high voltage oil flows through groove cavity 33 and electromagnetism valve pocket 36 successively by oil duct, flowing to low pressure drain tap 2 from oil duct 25 again, in combustion gas needle control chamber 14, oil pressure reduces, and combustion gas needle-valve 38 is pressed on needle-valve base 48 under combustion gas needle valve spring 13 acts on, close gas jet orifice 43, stop jet.According to operating mode residing for electromotor, pressure can be opened by regulation fuel pin and change the mode of operation of control gas electromagnetic valve 10, it is achieved multiple oil, gas jet pattern.
From above-mentioned work process, combined mechanical oil spout-electromagnetism jet hybrid fuel jet device uses crosspointer valve nozzle injection fuel oil, two kinds of fuel of combustion gas, saves space and simplifies engine structure, uses frame for movement to control injection process, simple in construction, preferable to existing diesel inheritance；Using electromagnetic valve to control the course of injection of combustion gas, fuel gas injection amount controllable precise, injection apparatus can meet electromotor under different operating modes to oil, the requirement of gas mixing at pure diesel fuel mode and oil pilot combustion gas MODE of operation.Nozzle segment uses fuel sealing combustion gas can be effectively prevented gas leakage, controls oil and Seal Oil uses same oil can effectively prevent from controlling chamber and the fuel oil static leakage of seal band.Therefore, this utility model can make electromotor meet the emission regulation demands of increasingly stringent, is effectively improved its dynamic property, economy and reliability.
Combined mechanical oil spout of the present utility model-electromagnetism jet hybrid fuel jet device is mainly made up of control part 1, crosspointer valve nozzle part 4, oil inlet filter element 6, injection apparatus body 7 and injection apparatus upper end cover 8.Being designed with low pressure drain tap 2 on injection apparatus body 7, control oil-in 3, fuel oil fuel inlet fitting 5 etc., fuel gas inlet 9 is positioned on injection apparatus upper end cover 8, and fuel oil oil inlet filter element 6 is positioned at fuel oil fuel inlet fitting 5.Control part 1 mainly to include controlling gas electromagnetic valve 10, combustion gas needle-valve gag lever post 11, combustion gas needle valve spring 13, combustion gas needle control chamber 14, fuel pin push rod 15, injection apparatus inner core 16, pressure spring 17, pressure regulating screw 19, lock nut 20 etc., each parts all position, are arranged in injection apparatus inner core 16, it is designed with annular oil groove 18 on injection apparatus inner core 16, combustion gas needle-valve gag lever post 11 is designed with central oil passage 12.Crosspointer valve nozzle part 4 mainly includes combustion gas needle-valve 38, fuel pin 45, needle-valve base 48, nozzle cage 49, sealing ring 50 etc., and combustion gas needle-valve 38 and fuel pin 45 share a needle-valve base 48.Combustion gas needle-valve 38 upper end is designed with annular step, below annular step, combustion gas needle control chamber 14 is formed between combustion gas needle-valve 38 and injection apparatus body 7, combustion gas needle-valve 38 and combustion gas needle-valve gag lever post 11 are co-axially mounted, and control oil central oil passage 12 on combustion gas needle-valve gag lever post 11 and enter combustion gas needle control chamber 14.Above fuel chamber 42, between combustion gas needle-valve 38 and needle-valve base 48, it is designed with seal band 40, controls oil to seal band 40 by oil duct 39 introducing portion on needle-valve base 48.
Described control gas electromagnetic valve 10 mainly includes sealed base 26 on electromagnetic valve body 21, electric magnet 22, coil 23, armature 24, valve rod, electromagnetic valve spring 27, electromagnetic valve valve rod 28, valve rod lower seal base 29, locating snap ring 37 etc..Two sealing cones it are designed with on electromagnetic valve valve rod 28, and it is designed with hydraulic oil annulus 32 and low pressure oil annulus 34, when control gas electromagnetic valve 10 is not powered on, electromagnetic valve valve rod 28 is pressed on valve rod lower seal base 29, and hydraulic oil annulus 32 is closed, low pressure oil annulus 34 is opened；When control gas electromagnetic valve 10 is energized, electromagnetic valve valve rod 28 lifts and is pressed on valve rod on sealed base 26, and low pressure oil annulus 34 is closed, hydraulic oil annulus 32 is opened.
This utility model combined mechanical oil spout-electromagnetism jet hybrid fuel jet device, including control part, crosspointer valve nozzle part, injection apparatus upper end cover and injection apparatus housing.Having fuel inlet fitting on injection apparatus housing, control oil-in and low pressure drain tap, be provided with fuel oil fitering element in fuel inlet fitting, fuel gas inlet is on injection apparatus upper end cover.Control part mainly includes injection apparatus inner core, controls gas electromagnetic valve, combustion gas needle-valve gag lever post, combustion gas needle valve spring, combustion gas needle control chamber, fuel pin push rod, pressure spring, pressure regulating screw, lock nut etc., and each parts all position, are arranged in injection apparatus inner core.Wherein, pressure spring is arranged between pressure regulating screw and push rod, is threaded connection between pressure regulating screw and injection apparatus inner core, is pressed in by pressure spring on fuel pin push rod.Crosspointer valve nozzle part mainly includes combustion gas needle-valve, fuel pin, needle-valve base, sealing ring, nozzle cage etc., and combustion gas needle-valve and fuel pin share a needle-valve base.
Control gas electromagnetic valve and mainly include sealed base on electromagnetic valve body, electric magnet, coil, armature, electromagnetic valve valve rod, valve rod, valve rod lower seal base, electromagnetic valve spring, locating snap ring etc..Form electromagnetism valve pocket on electromagnetic valve body and valve rod between sealed base, valve rod is formed between sealed base and valve rod lower seal base groove cavity.Electric magnet is arranged in electromagnetism valve pocket, and armature is positioned at below electric magnet, and its one end is stuck on armature by locating snap ring, and the other end runs through sealed base on the valve rod below armature, is pressed on valve rod lower seal base.On valve rod, sealed base is designed with two oil ducts, an oil duct communication groove chamber and electromagnetism valve pocket, and another oil duct connection electromagnetism valve pocket and low pressure drain tap, draining oil circuit flows through electromagnetic valve body.Valve rod lower seal base is designed with two oil ducts, an oil duct connection hydraulic oil annulus and combustion gas needle control chamber, oil pocket and low pressure drain tap below another oil duct connection electromagnetic valve valve rod.
Controlling to be designed with two annular oil bands on gas electromagnetic valve valve rod, lower endless oil band controls oil-in by oil duct connection, and upper annular oil band connects low pressure drain tap by oil duct.
Control to be designed with two sealing cones, upper sealing cone sealing low pressure oil ring band, lower seal conical surface seal hydraulic oil annulus on gas electromagnetic valve valve rod.Electromagnetic valve valve rod is taken a seat, and high-pressure oil passage is turned off, combustion gas needle control chamber connection low pressure oil way；Electromagnetic valve valve rod lifts, and low pressure oil way turns off, combustion gas needle control chamber connection high-pressure oil passage.
Combustion gas needle-valve upper end is designed with annular step, combustion gas needle control chamber is formed between needle-valve and injection apparatus body below annular step, combustion gas needle-valve gag lever post lower end is enclosed within inside the annular step of combustion gas needle-valve, combustion gas needle-valve gag lever post and combustion gas needle-valve arrange central oil passage along axis, and combustion gas needle control chamber is communicated by oil duct and electromagnetic valve groove cavity.
Hydraulic injection part and combustion gas control one low pressure drain tap of partial common.It is designed with annular oil groove, by oil duct connection return flow oil chamber, gas electromagnetic valve chamber and low pressure drain tap between injection apparatus body and injection apparatus inner core.
Above the fuel chamber of gas nozzle, it is designed with annular sealing strip between combustion gas needle-valve and needle-valve base, needle-valve base has annular oil groove and oil duct, part is controlled oil and introduces annular sealing strip.
Claims (3)
1. combined mechanical oil spout-electromagnetism jet hybrid fuel jet device, is characterized in that: include injection dress
Put body, injection apparatus upper end cover, injection apparatus inner core, needle-valve base, fuel oil spout part, fuel gas injection
Part, injection apparatus upper end cover is arranged on above injection apparatus body, and needle-valve base is arranged on spray by nozzle cage
Below injection device body, injection apparatus inner tube installation is in injection apparatus body, and described needle-valve base includes at the bottom of fuel oil
Seat and combustion gas base；
Described fuel oil spout part include lock nut, pressure regulating screw, regulation spring, fuel pin push rod,
Fuel pin, lock nut is arranged on outside pressure regulating screw, and pressure regulating screw is threadeded with injection apparatus inner core,
Lock nut, pressure regulating screw are arranged in injection apparatus body, arrange fuel pin top in injection apparatus inner core
Bar, installs pressure spring, arranges fuel pin in fuel oil base between fuel pin push rod and pressure regulating screw,
Fuel pin is positioned at below fuel pin push rod, and fuel oil base end arranges fuel oil spray orifice, fuel pin and combustion
Form oil holding slot between oil base, injection apparatus body be respectively provided with fuel oil fuel inlet fitting, low pressure drain tap,
Fuel oil fuel inlet fitting connection oil holding slot, injection apparatus inner core arranges annular oil groove, and annular oil groove is respectively communicated with
Lock nut place cavity and low pressure drain tap；
Described fuel gas injection part includes control gas electromagnetic valve, the combustion gas pin being arranged in injection apparatus inner core
Valve gag lever post and the combustion gas needle-valve being arranged in combustion gas base, described control gas electromagnetic valve includes electromagnetic valve
Sealed base, valve rod lower seal base, electromagnetic valve spring, electromagnetic valve on body, electric magnet, armature, valve rod
Valve rod, electromagnetic valve body, valve rod upper seal support, valve rod bottom sealing socket and combustion gas needle-valve gag lever post are from top to bottom
Arrange, electromagnetic valve body and valve rod are formed between sealed base electromagnetism valve pocket, sealed base and valve rod on valve rod
Forming groove cavity between lower seal base, electric magnet is arranged in electromagnetism valve pocket, and armature is positioned at below electric magnet,
One end of electromagnetic valve valve rod is stuck on armature by locating snap ring, and the other end runs through sealing on the valve rod below armature
Base, and match with valve rod lower seal base, electromagnetic valve valve rod is respectively provided with and sealed base on valve rod
The upper sealing cone that coordinates and with the lower seal conical surface of valve rod lower seal base engagement, electromagnetic valve valve rod and valve
The part that on bar, sealed base matches forms low pressure oil annulus, electromagnetic valve valve rod and valve rod lower seal base phase
The part coordinated forms hydraulic oil annulus, and valve rod arranges on sealed base the first oil duct and the 4th oil duct, valve
Second oil duct and the 3rd oil duct are set on bar lower seal base, the 5th oil duct is set in injection apparatus inner core, spray
Control oil-in, the first oil duct connection electromagnetism valve pocket and low pressure drain tap, the second oil duct are set on injection device body
Connection hydraulic oil annulus and control oil-in, arrange central oil passage in combustion gas needle-valve gag lever post, and the 3rd oil duct is even
Logical groove cavity and central oil passage, the 4th oil duct connection low pressure oil annulus electromagnetism valve pocket, combustion gas needle-valve is positioned at combustion gas
Below needle-valve gag lever post, formed respectively between combustion gas needle-valve and combustion gas base and seal circuit and fuel chamber, seal
Circuit controls oil-in by the 5th oil duct connection, and fuel chamber is by the blast tube in injection apparatus inner core even
Fuel gas inlet on logical injection apparatus upper end cover, combustion gas base end arranges gas jet orifice.
Combined mechanical oil spout the most according to claim 1-electromagnetism jet hybrid fuel jet device,
It is characterized in that: combustion gas needle-valve upper end is designed with annular step, below annular step and injection apparatus body it
Between formed combustion gas needle control chamber, combustion gas needle-valve gag lever post lower end is enclosed within inside the annular step of combustion gas needle-valve,
Combustion gas needle control chamber and groove cavity communicate.
Combined mechanical oil spout the most according to claim 1 and 2-electromagnetism jet hybrid fuel jet dress
Put, it is characterized in that: when control gas electromagnetic valve is not powered on, electromagnetic valve valve rod is pressed on valve rod lower seal base,
Hydraulic oil annulus is closed, low pressure oil annulus is opened, and combustion gas needle control chamber connects with low pressure drain tap；Control
During gas electromagnetic valve energising, electromagnetic valve valve rod lifts and is pressed on valve rod on sealed base, the closedown of low pressure oil annulus,
Hydraulic oil annulus is opened, and combustion gas needle control chamber connects with controlling oil-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338989.1U CN205714524U (en) | 2016-04-21 | 2016-04-21 | Combined mechanical oil spout-electromagnetism jet hybrid fuel jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338989.1U CN205714524U (en) | 2016-04-21 | 2016-04-21 | Combined mechanical oil spout-electromagnetism jet hybrid fuel jet device |
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| Publication Number | Publication Date |
|---|---|
| CN205714524U true CN205714524U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620338989.1U Withdrawn - After Issue CN205714524U (en) | 2016-04-21 | 2016-04-21 | Combined mechanical oil spout-electromagnetism jet hybrid fuel jet device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756832A (en) * | 2016-04-21 | 2016-07-13 | 哈尔滨工程大学 | Combined mechanical fuel oil injection and electromagnetic fuel gas injection mixed fuel injection device |
-
2016
- 2016-04-21 CN CN201620338989.1U patent/CN205714524U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756832A (en) * | 2016-04-21 | 2016-07-13 | 哈尔滨工程大学 | Combined mechanical fuel oil injection and electromagnetic fuel gas injection mixed fuel injection device |
| CN105756832B (en) * | 2016-04-21 | 2018-01-19 | 哈尔滨工程大学 | Combined mechanical oil spout electromagnetism jet hybrid fuel jet device |
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Granted publication date: 20161123 Effective date of abandoning: 20180119 |