CN107084076A - A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission - Google Patents
A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission Download PDFInfo
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- CN107084076A CN107084076A CN201710504573.1A CN201710504573A CN107084076A CN 107084076 A CN107084076 A CN 107084076A CN 201710504573 A CN201710504573 A CN 201710504573A CN 107084076 A CN107084076 A CN 107084076A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
It is an object of the invention to provide a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission, gaseous fuel is transported to the present apparatus by the road, first passes through fuel gas injection valve, actuator is by controlling the control to valve element to realize the control being opened and closed to valve；The stability that valve is opened and closed, the response that intensifier is supplied and died ensure that by guide finger, pressure compensation opening, relief groove and pressure stabilizing cavity；By the mixed admission mode of the main direct air inlet of air drain in axial direction and circumferential tonifying Qi gas inlet hole in valve, big flow is realized, while air-flow can be avoided to interfere, realizes that device supplies stability；By fuel anemostat cavity structure, fuel is distributed in whole device, realize the continuity and response of feeder supply；By branch pipe flume structure, make the gaseous fuel formation vortex of ejection, promote the mixability of fuel and air, be conducive to burning, improve device service behaviour.
Description
Technical field
The present invention relates to the inlet duct of a kind of inlet duct, specifically gaseous propellant engine.
Background technology
The discharge standard of continuous improvement and increasingly serious problem of energy crisis propose new challenge to engine technology,
The alternative fuel of many gaseous fuels as engine using headed by natural gas becomes grinding for domestic and international many researchers
Study carefully emphasis, gaseous propellant engine also becomes widely studied object.A whole set of inlet duct, including from fuel gas injection valve to
Inlet manifold arrives many parts such as cylinder valve, property of each part that fuel and air are flowed through for gaseous propellant engine again
Can be all significant.For the injection of gaseous fuel, it should require that injection flow is big, ejection efficiency is high, while also requiring
Jetting stability, response are good；And the flowing for gaseous fuel and air is, it is necessary to make gaseous fuel and air enter cylinder
It can sufficiently be mixed before, energy resource consumption is saved to improve fuel economy.Therefore, in order to reach object above,
So the present invention specially devises a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission.This air inlet
The whole individual inlet duct function of integrated system lifting, with the characteristics of fuel supply response is fast, stability is high, flow is big, and
Fuel can be made to be sufficiently mixed before cylinder is entered with air, efficiency of combustion is improved.
To realize the high responsiveness and fuel of fuel supply and being sufficiently mixed for air, many researchers have studied one
Serial gas handling system, although these system architectures provide a kind of preferable method for fuel gas supply, there is also one simultaneously
It is a little not enough.For example：Described in CN106050479A patents " a kind of fuel gas injection valve and injection tubular construction, mounting arrangements method "
A kind of engine gas injection valve and nozzle structure, its feature are on the wall of jet pipe side to have opened up many row's spouts, each to arrange spray
Mouthful it is interspersed, necessarily into the mixing that fuel and air are enhanced in degree, but gaseous fuel from spout after spraying,
The gas concentration of air intake duct in the radial direction can be reduced gradually, and this will also result in fuel and air undercompounding.
The content of the invention
It is an object of the invention to provide fuel and air mixability is good, a kind of high combustion efficiency collection of mixed admission
Accepted way of doing sth ring manifold wall gaseous fuel jet mixing device.
The object of the present invention is achieved like this：
A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission of the present invention, it is characterized in that：Bag
Include fuel gas injection valve, connection gas hood, fuel anemostat；
The fuel gas injection valve includes valve body, valve seat, electromagnet, valve element assembly, and electromagnet is arranged on valve body, valve body
On valve seat, wound around coil in valve space, electromagnet, valve element combination position are formed between electromagnet, valve body and valve seat
In in valve space and being arranged on below electromagnet, described valve element assembly includes armature, spring base, bottom plate, valve element, guiding
Pin, armature, bottom plate, valve element arrange that spring base is located at outside armature simultaneously while being linked together by fastening bolt from top to bottom
Formed between armature and annular groove is set inside annular groove, electromagnet, the two ends of master reset spring are arranged in electromagnet
In the annular groove of annular groove and spring base, guide finger is installed in armature center, and guide finger is stretched in electromagnet, set in electromagnet
Auxiliary back-moving spring is put, the two ends of auxiliary back-moving spring are contacted respectively sets pressure compensation opening, bottom in electromagnet and guide finger, guide finger
Relief groove is set on plate, and valve element is to set center pressure stabilizing cavity on the valve seat below hollow structure, valve element, and the outer end of valve seat is set
End pressure stabilizing cavity is put, pressure compensation opening, relief groove, the hollow space of valve element and center pressure stabilizing cavity communicate and constitute inside
Seal band is set on space, valve element, and seal band forms ring cavity, and valve element upper surface is opened up to be provided with axially main air drain, fin
Outlet annulus is set on circumferential tonifying Qi hole, and the setting diversion angle of cone at tonifying Qi hole, valve seat, and outlet annulus is located at below ring cavity,
Venthole is set below outlet annulus；
The fuel anemostat includes tracheae main body, and tracheae main body includes supervisor and branch pipe, is responsible for the annulus knot for cavity
Set on structure, circular ring structure in the middle part of supervisor's intercommunicating pore, annulus is main tube hub hole, the front end of branch pipe and the circular ring structure phase being responsible for
Logical, supervisor is connected and communicated be connected gas hood, is responsible for centre bore and connects free-air diffuser, is responsible for the branch pipe region at centre bore rear
Combustion gas mixing area is constituted, all branch pipes are affixed on the inside of the distribution of inlet manifold tube wall surrounding, branch pipe and open up skewed slot；
Venthole connection connection gas hood.
The present invention can also include：
1st, it is wavy shaped configuration above one end of supervisor's connection gas hood, it is frustum cone structure to be responsible at intercommunicating pore.
2nd, the end of branch pipe sets semicircle perforate, and the skewed slot on each branch pipe is four, its folder with inlet manifold axis
Angle is respectively 30 °, 30 °, 45 °, 60 °.
The 3rd, extension is set on valve body, and extension sets and sets diversion cavity in the valve body below air inlet, air inlet,
Air inlet, diversion cavity are communicated and constitute exterior space, and exterior space is communicated with inner space；
Combustion gas vertically flows into diversion cavity through air inlet, and exterior space and inside full of valve inner are flowed into along diversion cavity
Space, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；
In the fuel gas injection valve course of work, when coil is not powered on, in the pretightning force of master reset spring and auxiliary back-moving spring
Under effect, the upper surface of seal band and valve seat on valve element is fitted close, valve inner of the combustion gas full of fuel gas injection valve
Exterior space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset
Moved upwards after spring, the pretightning force of auxiliary back-moving spring, valve element is separated with valve base surface, fuel gas injection valve is opened, gas circuit is opened,
Combustion gas is flowed into by the mixed admission mode in axially main air drain and circumferential tonifying Qi hole, by ring cavity, is vertically flowed out and gone forward side by side by venthole
Enter and connect gas hood, afterwards incoming fuel anemostat, combustion gas is spread in the circular ring structure of supervisor, then is flowed into each branch pipe,
The combustion gas for being flowed into branch pipe is injected to combustion gas mixing area by each skewed slot, and at the same time air passes through from free-air diffuser and is responsible for
Centre bore enters combustion gas mixing area, in the presence of vortex, and combustion gas is mixed with air and is flowed into inlet manifold；Coil blackout
Afterwards, under the pretightning force effect of master reset spring and auxiliary back-moving spring, armature is moved downward, the overall fortune downwards of valve element assembly
It is dynamic, until spool face is fitted with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.
Advantage of the invention is that：The present invention not only has the characteristics of fuel injection stability is high, flow is big, also with combustion
Material with air mixability is good, high combustion efficiency advantage；Pass through guide finger, pressure compensation opening, relief groove and pressure stabilizing cavity
It ensure that the stability of valve opening and closing, the response that intensifier is supplied and died；Pass through the axially main direct air inlet of air drain in valve
With the mixed admission mode of circumferential tonifying Qi gas inlet hole, big flow is realized, while air-flow can be avoided to interfere, realizes that device supply is steady
It is qualitative；By fuel anemostat cavity structure, fuel is distributed in whole device, realize the continuity of feeder supply
And response；By branch pipe flume structure, make the gaseous fuel formation vortex of ejection, promote the mixability of fuel and air,
Be conducive to burning, improve device service behaviour.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is fuel gas injection valve general illustration；
Fig. 3 is valve element assembly schematic diagram；
Fig. 4 is fuel anemostat stereogram；
Fig. 5 is fuel anemostat front view；
Fig. 6 is the flow graph of gaseous fuel.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1-6, a kind of integrated form ring manifold wall gaseous fuel injection mixing of mixed admission in the present invention is filled
Put, be divided into fuel gas injection valve 1, connection gas hood 2 and fuel anemostat 3.Fuel gas injection valve 1 is main by electromagnet 4, master reset spring
5th, auxiliary back-moving spring 6, valve element assembly 7, valve body 8 and valve seat 9 are constituted, and electromagnet 4 is fixed on valve body 8 by fixing bolt,
And center is provided with the straight trough of certain depth, straight trough inner top arranges auxiliary back-moving spring 6, and coil is wrapped in inside electromagnet 4
In annular groove；There is valve element assembly 7 in electromagnet arranged beneath, the lower section of valve element assembly 7 is the structure of valve seat 9；Valve seat 9 and valve body 8
Between be bolted to connection together, mating surface therebetween realizes sealing by O-ring seal.The effect of gas hood 2
It is original mixed airway being divided into two parts, respectively circulated gases fuel and air, gas hood uses big fillet structure,
Avoid the restriction loss that angular structures are caused, intensifier gas supply capacity.The one end of gas hood 2 is exported with fuel gas injection valve 1 closely to be connected
Connect, the other end is then closely connected with fuel anemostat 3, fuel sprays from fuel gas injection valve 1 enters anemostat 3 through gas hood 2.Fuel
Anemostat 3 is located in inlet manifold, is close to inlet manifold arrangement, can be divided into supervisor 20 and branch pipe 21, supervisor according to design feature
20 be the toroidal cavity structure of a connection gas hood 2, and supervisor's centre bore is connected to free-air diffuser；Connect in the opposite side of supervisor 20
Then some branch pipes 21, supervisor 20 and branch pipe 21 are interconnected.Opened up on the madial wall of branch pipe 21 a series of angles not wait it is oblique
Groove 22, angle of bevel uses gradual change form, and gaseous fuel from each branch pipe 21 can be flowed into combustion by this series of skewed slot
Gas mixed zone, and make to be vortexed from the gaseous fuel formation that branch pipe 21 is ejected into mixed zone, accelerate the mixing of fuel and air；Branch pipe
End is provided with semi-circular hole, to prevent gaseous fuel to be arrested in branch pipe.
Fig. 3 is that valve element assembly 7 is located among valve body 8, mainly by guide finger 11, armature 12, spring base 13, bottom plate 14
Constituted with valve element 18, it is characterized in that：Armature 12, spring base 13, bottom plate 14 and valve element 18 pass through fastening bolt connection
Together, the side surface inside spring base 13 is in contact with the side surface of armature 12, and master reset spring 5 is located at electromagnet 4 and bullet
In annular groove between spring abutment 13；Guide finger 11, wherein one end are arranged between the center straight trough of electromagnet 4 and the centre bore of armature 12
Pin 11 is directed to using jump ring to be fixed up with armature 12, other end is withstood on the auxiliary back-moving spring 6 in the straight trough of electromagnet 4,
So valve element assembly 7 can be made to keep perpendicularity in motion process, strengthen the reliability of its work；Meanwhile, in guide finger 11
Inside is provided with pressure compensation opening 16, and pressure compensation opening 16 is connected by the relief groove 17 on bottom plate 14 and the external space of valve element 18
It is logical, the internal and external pressure balance of valve element 18 is realized, can so avoid armature 12 by axial force, improve the response speed of armature 12；Valve
Core 18 is made up of valve element main body 18, fin 19 and seal band 15, and circumferential tonifying Qi hole 25 is opened on the fin 19 of valve element 18, and then
Reduce air current flow interference simultaneously in increase fuel circulation；
In the fuel gas injection valve course of work, when coil is not powered on, in master reset spring 5 and the pretension of auxiliary back-moving spring 6
Under power effect, valve element assembly 7 remains motionless in initial position, under the seal band 15 of the valve element 18 in valve element assembly 7
Surface and the upper surface of the outlet annulus 10 of valve seat 9 are brought into close contact, and now outlet annulus 10 not yet connects with the inner space of valve body 8
It is logical, the whole space inside valve body 8 of the combustion gas full of fuel gas injection valve.
Pressure stabilizing cavity 26 is respectively provided with the center of valve seat 9 and periphery, can effectively suppress gaseous-pressure inside fuel gas injection valve
Fluctuation ventilation can be made uniform, realize the steady operation of air-flow, reliably working realizes high response speed.
When engine enters induction stroke, coil electricity, electromagnet 4, armature 12 are magnetized, electromagnet 4 and armature 12
Between form magnetic loop, armature 12 is acted on by electromagnetic force overcomes the pretightning force of master reset spring 5 and auxiliary back-moving spring 6 backward
Upper motion, motion is separated band movable valve plug 18 with the surface of valve seat 9 upwards, upper surface and the following table of electromagnet 4 until spring base 13
Face is in contact, in whole motion process, the axial movement of armature 12 and circumferentially positioned by between guide finger 11 and electromagnet 4
Cooperation control to realize, now, gas circuit is opened, and magnetic valve is opened, gas is rapidly by axially main air drain 24 and circumferential tonifying Qi hole
25 mixed admission mode is flowed into, and this intake method can increase charge flow rate coefficient, realize big flow, be effectively improved
The supply efficiency of device, while air-flow can be avoided to interfere, realizes balancing, stably for gas circuit；Afterwards, by multiple tracks ring cavity 27,
It is last vertically to be flowed out by gas outlet 28；
Fuel flows into fuel anemostat 3 by gas hood 2, and gaseous fuel spreads in the circular ring structure of supervisor 20, then flows into
Into each branch pipe 21, the gaseous fuel for being flowed into branch pipe 21 is injected to combustion gas mixing area by each skewed slot 22, at the same time
Fresh air enters combustion gas mixing area from free-air diffuser by supervisor's centre bore, because branch pipe is distributed in inlet manifold
Position, destroy manifold wall formation boundary layer of air, increase air flow tubulence energy, additionally due to the skewed slot on branch pipe
22 take the angle design of gradual change, therefore gaseous fuel can produce vortex when being injected to mixed zone, in the presence of vortex, combustion
Material can be carried out sufficiently mixing and is flowed into again in cylinder with air.
After engine induction stroke terminates, the interior loop of fuel gas injection valve 1 power-off, the electromagnetic force that armature 12 is subject to disappears,
The work of the auxiliary back-moving spring 6 between master reset spring 5 and guide finger 11 and electromagnet 4 between electromagnet 4 and spring base 13
Under, armature 12 is moved downward, and band movable valve plug 18 is moved downward, until the surface of valve element 18 is fitted with the surface of valve seat 9, armature 12 is extensive
Initial position is arrived again, and gas circuit is closed, and fuel gas injection valve 1 is closed.Flowing of the fuel in fuel anemostat 3 also just basic stopping,
Fuel is just stored in gas hood 2, supervisor 20 and each branch pipe 21.Until during next induction stroke, fuel gas injection valve 1 and cylinder
Air valve is opened, and combustion gas mixing area can be pushed to by follow-up fuel by being stored in gas hood 2, supervisor 20, the fuel in branch pipe 21, with
Enter cylinder after air mixing, which thereby enhance the response of whole inlet duct supply.
A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission in the present invention, is divided into combustion gas
Injection valve, connection gas hood and fuel anemostat.Fuel gas injection valve is main by electromagnet, major-minor back-moving spring, valve element assembly, valve
Body and valve seat composition, electromagnet is fixed on valve body by fixing bolt, and center is provided with the straight trough of certain depth, straight trough
The auxiliary back-moving spring of top layout, coil is wrapped in the annular groove inside electromagnet；There is valve element assembly in electromagnet arranged beneath,
Valve element assembly is located among valve body, is mainly made up of guide finger, armature, spring base, bottom plate and valve element, armature, spring base, bottom
Plate and valve element pass through fastening bolt and linked together, and the side surface inside spring base connects with the side surface of armature
Touch, master reset spring is located in the annular groove between electromagnet and spring base；Electromagnet center straight trough and armature centre bore it
Between arrange guide finger, wherein one end is directed to pin using jump ring and is fixed up with armature, and other end is withstood in electromagnet straight trough
Auxiliary back-moving spring on, so valve element assembly can be made to keep perpendicularity in motion process, strengthen the reliability of its work；Valve
Core is made up of valve element main body, fin and seal band, and circumferential tonifying Qi hole is opened on the fin of valve element, and then in increase fuel circulation
Amount reduces air current flow interference simultaneously；It is valve seat construction below valve element；It is bolted to connection between valve seat and valve body one
Rise, mating surface therebetween realizes sealing by O-ring seal.The effect of gas hood is original mixed airway being divided into
Two parts, difference circulated gases fuel and air.Gas hood one end is closely connected with fuel gas injection valve outlet, the other end then with combustion
Material anemostat is closely connected, and fuel sprays from fuel gas injection valve enters anemostat through gas hood.Fuel anemostat is located at inlet manifold
It is interior, it is close to inlet manifold arrangement, supervisor and branch pipe can be divided into according to design feature, supervisor is the toroidal cavity of a connection gas hood
Structure, supervisor's centre bore is connected to free-air diffuser；Some branch pipes are connected in the opposite side of supervisor, supervisor mutually interconnects with branch pipe
It is logical.A series of skewed slot that angles are not waited is opened up on branch pipe madial wall, angle of bevel uses gradual change form, and gaseous fuel can lead to
Cross this series of inclined hole and be flowed into combustion gas mixing area from each branch pipe, and make gaseous fuel shape that mixed zone is ejected into from branch pipe
Into vortex, accelerate the mixing of fuel and air；Branch pipe end is provided with semi-circular hole, to prevent gaseous fuel to be arrested in branch pipe.
Pin part is oriented in fuel gas injection valve, among electromagnet and armature central channel, and pressure is opened up in center
Dynamic balance hole, the circumferential pressure compensating groove that pressure compensation opening is opened up with bottom plate below guide finger is communicated, and reaches inside and outside gas circuit flat
Combustion gas no pressure is poor inside and outside weighing apparatus, valve element assembly, it is to avoid by extra axial force during from motion.
Valve element assembly and valve seat junction part, are interspersed using seal band and outlet annulus in fuel gas injection valve
Form carry out face sealing, while big zonary structure can reduce architecture quality, reduce impact, improve device working stability
Property.
The center and periphery of fuel gas injection valve seat are provided with pressure stabilizing cavity, pressure stabilizing cavity and the valve element group of valve seat center in device
Combustion gas space inside zoarium is connected, and the pressure stabilizing cavity at valve seat periphery is connected with the diversion cavity in valve body, can be effective
The fluctuation of check valve internal gas pressure, improves device job stability, realizes device high response speed.
Fuel injection exit passageway part in device, main air drain, valve element floor centre bore, seal spool annular groove in valve body
Go out compression with valve seat to constitute；When fuel gas injection valve is closed, closure gasket groove and go out compression interlacing contact, formed
Sealing surface, prevents fuel from entering inlet manifold；When fuel gas injection valve is opened, fuel can enter compression from main air drain,
Compression can be entered from the sealed annular groove of floor centre bore；This mixed admission mode, increases charge flow rate coefficient, realizes dress
The big flow put, effectively improves the supply efficiency of inlet duct, while air-flow can be avoided to interfere, realizes whole device
Supply stability.
Gas hood part in device, its surface texture uses larger radius of curvature, it is to avoid more sharp angular structures,
Fuel can so be reduced from injection valve through the restriction loss during gas hood penetrating tracheae main part.
Each branch pipe in device in fuel anemostat, is evenly arranged in the position of gas manifold tube wall, such knot
Structure design can destroy the boundary layer of air of manifold wall formation in gas circulation, increase the tubulence energy of air flow, to strengthen
Mixing between fuel and air.
A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission can strengthen fuel supply sound
Ying Xing, first fuel gas injection valve open response using guide finger and pressure balance pore structure enhancing valve element；Work as fuel gas injection valve
Open, fuel is flowed into dyestuff anemostat through gas hood, flow into inlet manifold by a series of effect of skewed slots and form vortex, with
Air is sufficiently mixed, and is finally flowed into cylinder；After fuel gas injection valve and cylinder valve are all closed, due to the present apparatus
Fuel and air can be subjected to certain isolation, can will be sprayed from injection valve but fail to timely enter the gas combustion of cylinder
Material, which is stored in the cavity of fuel anemostat, prevents divergence loss, after next snifting valve and cylinder valve are opened, the part gas
Fluid fuel, which can be promptly supplied in cylinder, to be used to burn, and improves fuel supply response.
Claims (5)
1. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission, it is characterized in that：Including gas injection
Penetrate valve, connection gas hood, fuel anemostat；
The fuel gas injection valve includes valve body, valve seat, electromagnet, valve element assembly, and electromagnet is arranged on valve body, and valve body is installed
On valve seat, wound around coil in valve space, electromagnet is formed between electromagnet, valve body and valve seat, valve element assembly is located at valve
In space and it is arranged on below electromagnet, described valve element assembly includes armature, spring base, bottom plate, valve element, guide finger, rank
Iron, bottom plate, valve element arrange that spring base is located at outside armature and and armature while being linked together by fastening bolt from top to bottom
Between form annular groove, annular groove is set inside electromagnet, and the two ends of master reset spring are arranged in the annular groove of electromagnet
In the annular groove of spring base, guide finger is installed in armature center, and guide finger is stretched in electromagnet, sets auxiliary multiple in electromagnet
Position spring, the two ends of auxiliary back-moving spring contact to set in electromagnet and guide finger, guide finger respectively and set on pressure compensation opening, bottom plate
Relief groove is put, valve element is that center pressure stabilizing cavity is set on the valve seat below hollow structure, valve element, and the outer end of valve seat sets end
Pressure stabilizing cavity, pressure compensation opening, relief groove, the hollow space of valve element and center pressure stabilizing cavity communicate and constitute inner space,
Seal band is set on valve element, and seal band formation ring cavity, valve element upper surface opens up and is provided with circumferential benefit on axially main air drain, fin
Outlet annulus is set on stomata, and the setting diversion angle of cone at tonifying Qi hole, valve seat, and outlet annulus is located at below ring cavity, goes out compression ring
Band lower section sets venthole；
The fuel anemostat includes tracheae main body, and tracheae main body includes supervisor and branch pipe, is responsible for the circular ring structure for cavity, circle
It is main tube hub hole to be set on ring structure in the middle part of supervisor's intercommunicating pore, annulus, and the front end of branch pipe is communicated with the circular ring structure being responsible for, main
Pipe is connected and communicated be connected gas hood, and supervisor's centre bore connects free-air diffuser, is responsible for the branch pipe region composition at centre bore rear
Combustion gas mixing area, all branch pipes are affixed on the inside of the distribution of inlet manifold tube wall surrounding, branch pipe and open up skewed slot；
Venthole connection connection gas hood.
2. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission according to claim 1,
It is characterized in that：It is wavy shaped configuration above one end of supervisor's connection gas hood, it is frustum cone structure to be responsible at intercommunicating pore.
3. a kind of integrated form ring manifold wall gaseous fuel injection mixing dress of mixed admission according to claim 1 or 2
Put, it is characterized in that：The end of branch pipe sets the skewed slot on semicircle perforate, each branch pipe to be four, itself and inlet manifold axis
Angle is respectively 30 °, 30 °, 45 °, 60 °.
4. a kind of integrated form ring manifold wall gaseous fuel injection mixing dress of mixed admission according to claim 1 or 2
Put, it is characterized in that：Extension is set on valve body, and extension sets and sets water conservancy diversion in the valve body below air inlet, air inlet
Chamber, air inlet, diversion cavity are communicated and constitute exterior space, and exterior space is communicated with inner space；
Combustion gas vertically flows into diversion cavity through air inlet, and exterior space and inside sky full of valve inner are flowed into along diversion cavity
Between, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；
In the fuel gas injection valve course of work, when coil is not powered on, acted in the pretightning force of master reset spring and auxiliary back-moving spring
Under, the upper surface of seal band and valve seat on valve element is fitted close, the outside of valve inner of the combustion gas full of fuel gas injection valve
Space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset bullet
Moved upwards after spring, the pretightning force of auxiliary back-moving spring, valve element is separated with valve base surface, fuel gas injection valve is opened, gas circuit is opened, combustion
Gas is flowed into by the mixed admission mode in axially main air drain and circumferential tonifying Qi hole, by ring cavity, is vertically flowed out into by venthole
Gas hood is connected, afterwards incoming fuel anemostat, combustion gas is spread in the circular ring structure of supervisor, then is flowed into each branch pipe, stream
Enter the combustion gas to branch pipe and combustion gas mixing area be injected to by each skewed slot, at the same time air from free-air diffuser by supervisor
Heart hole enters combustion gas mixing area, in the presence of vortex, and combustion gas is mixed with air and is flowed into inlet manifold；Coil blackout
Afterwards, under the pretightning force effect of master reset spring and auxiliary back-moving spring, armature is moved downward, the overall fortune downwards of valve element assembly
It is dynamic, until spool face is fitted with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.
5. a kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission according to claim 3,
It is characterized in that：Extension is set on valve body, and extension sets and sets diversion cavity in the valve body below air inlet, air inlet,
Air inlet, diversion cavity are communicated and constitute exterior space, and exterior space is communicated with inner space；
Combustion gas vertically flows into diversion cavity through air inlet, and exterior space and inside sky full of valve inner are flowed into along diversion cavity
Between, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；
In the fuel gas injection valve course of work, when coil is not powered on, acted in the pretightning force of master reset spring and auxiliary back-moving spring
Under, the upper surface of seal band and valve seat on valve element is fitted close, the outside of valve inner of the combustion gas full of fuel gas injection valve
Space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset bullet
Moved upwards after spring, the pretightning force of auxiliary back-moving spring, valve element is separated with valve base surface, fuel gas injection valve is opened, gas circuit is opened, combustion
Gas is flowed into by the mixed admission mode in axially main air drain and circumferential tonifying Qi hole, by ring cavity, is vertically flowed out into by venthole
Gas hood is connected, afterwards incoming fuel anemostat, combustion gas is spread in the circular ring structure of supervisor, then is flowed into each branch pipe, stream
Enter the combustion gas to branch pipe and combustion gas mixing area be injected to by each skewed slot, at the same time air from free-air diffuser by supervisor
Heart hole enters combustion gas mixing area, in the presence of vortex, and combustion gas is mixed with air and is flowed into inlet manifold；Coil blackout
Afterwards, under the pretightning force effect of master reset spring and auxiliary back-moving spring, armature is moved downward, the overall fortune downwards of valve element assembly
It is dynamic, until spool face is fitted with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.
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| CN201710504573.1A CN107084076B (en) | 2017-06-28 | 2017-06-28 | Integrated annular manifold wall surface gas fuel injection mixing device for mixed air intake |
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| CN201710504573.1A CN107084076B (en) | 2017-06-28 | 2017-06-28 | Integrated annular manifold wall surface gas fuel injection mixing device for mixed air intake |
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| CN107084076B CN107084076B (en) | 2023-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828206A (en) * | 2021-07-13 | 2021-12-24 | 重庆大学 | Jet flow stirring paddle capable of improving fluid mixing effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229578A (en) * | 1994-02-16 | 1995-08-29 | Unisia Jecs Corp | Gas injection valve |
| CN106121867A (en) * | 2016-08-31 | 2016-11-16 | 重庆红江机械有限责任公司 | A kind of gaseous propellant engine fuel gas electric spray valve |
| CN206816411U (en) * | 2017-06-28 | 2017-12-29 | 哈尔滨工程大学 | A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission |
-
2017
- 2017-06-28 CN CN201710504573.1A patent/CN107084076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229578A (en) * | 1994-02-16 | 1995-08-29 | Unisia Jecs Corp | Gas injection valve |
| CN106121867A (en) * | 2016-08-31 | 2016-11-16 | 重庆红江机械有限责任公司 | A kind of gaseous propellant engine fuel gas electric spray valve |
| CN206816411U (en) * | 2017-06-28 | 2017-12-29 | 哈尔滨工程大学 | A kind of integrated form ring manifold wall gaseous fuel jet mixing device of mixed admission |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828206A (en) * | 2021-07-13 | 2021-12-24 | 重庆大学 | Jet flow stirring paddle capable of improving fluid mixing effect |
| CN113828206B (en) * | 2021-07-13 | 2024-03-22 | 重庆大学 | Jet-type jet stirring paddle for improving fluid mixing effect |
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| CN107084076B (en) | 2023-06-09 |
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