CN103470405A - Device with changeable gas injection direction and orifice number - Google Patents

Device with changeable gas injection direction and orifice number Download PDF

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Publication number
CN103470405A
CN103470405A CN2013104403030A CN201310440303A CN103470405A CN 103470405 A CN103470405 A CN 103470405A CN 2013104403030 A CN2013104403030 A CN 2013104403030A CN 201310440303 A CN201310440303 A CN 201310440303A CN 103470405 A CN103470405 A CN 103470405A
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China
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gas jet
jet orifice
sealing bolt
gas
orifice
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CN2013104403030A
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王忠恕
李伟峰
刘忠长
韩永强
许允
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Jilin University
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Jilin University
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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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Abstract

The invention discloses a device with a changeable gas injection direction and a changeable orifice number, and aims to solve the problems that the gas injection direction and the orifice number cannot be changed in the prior art. The device with the changeable gas injection direction and orifice number is composed of a nozzle (1) and a sealing bolt subassembly. The nozzle (1) is a cylinder type structural member formed by a circular cylinder and a spherical end face; gas orifices are formed in the spherical end face. The sealing bolt subassembly is composed of a No. 1-1 sealing bolt (3), a No. 1-2 sealing bolt (4), a No. 1-3 sealing bolt (2), ellipsis, a No.1-M sealing bolt, a No. 2-1 sealing bolt, a No. 2-2 sealing bolt, ellipsis, a No.2-M sealing bolt, ellipsis, a No. N-1 sealing bolt, a No. N-2 sealing bolt, a No. N-3 sealing bolt, ellipsis, and a No. N-M sealing bolt, wherein the screws of all the sealing bolts are provided with external threads; the sealing bolt subassembly is arranged in the gas orifices on the nozzle (1) in a threaded connection manner.

Description

Fuel gas injection direction and spray orifice are counted variset
Technical field
The present invention relates to a kind ofly for the fuel gas ejecting device on gaseous propellant engine, more particularly, the present invention relates to a kind of fuel gas injection direction and spray orifice and count variset.
Background technique
Gaseous propellant engine has also greatly reduced NO when reducing petroleum fuel consumption xwith the discharge of PM, for improving vehicle exhaust to the pollution of environment and alleviating countries in the world, oil-fired dependence has been made to huge contribution.Flowing in cylinder is very large to the combustion effects of gaseous fuel with the CONCENTRATION DISTRIBUTION of the interior combustion gas of cylinder.Gaseous propellant engine the gas inlet mode that generally adopts be the intake duct multi-point injection.Up-to-date result of study shows, when fuel enters in cylinder in the mode of intake duct multi-point injection, and just as in-cylinder direct injection, combustion gas and air non-uniform mixing.The change of the difference of injection direction and spray orifice number, can form mixed gas state in different cylinders, when spray orifice approaches intake valve, by adjusting the injection direction of combustion gas, make it avoid bumping with intake duct wall or intake valve, can directly combustion gas be sprayed in cylinder, in cylinder, can form the stratified mixtures body; In like manner, also can pass through the adjustment of fuel gas injection direction, make combustion gas and intake duct wall or intake valve bumps or angled with air flow, in cylinder, can form mixed gas relatively uniformly.Therefore injection direction and the spray orifice number of combustion gas in intake duct will greatly affect in cylinder the CONCENTRATION DISTRIBUTION flowed with fuel, thereby in the formation cylinder, even mixed combustion or port injection type layering are to different lean combustion modes such as gas firings, this will produce impact greatly to engine combustion and emission performance.
At present, carried out the research work to the alternative-fuel engine correlation technique both at home and abroad, the supply mode of gaseous propellant engine combustion gas adopts the mode of intake duct multi-point injection more, the Chinese patent notification number is CN101545418, the day for announcing is on September 30th, 2009, the patent that invention and created name is " electric-controlled injection lean burn natural gas engine gas injection apparatus and ejection control method " has been announced a kind of natural gas engine gas injection apparatus, a feature wherein is: a large flow natural gas nozzle, the rock gas nozzle is arranged on cylinder cap or intake manifold, a gas diversion pipe is installed in rock gas nozzle below, the internal diameter of gas diversion pipe is identical with rock gas nozzle outlet internal diameter, gas diversion tube hub line and intake valve center line are two and are not parallel to each other or crossing space line.But the position of this device nozzle is fixed on cylinder cap or intake manifold, can not change the injection direction of combustion gas, and the spray orifice number can not change.
Summary of the invention
Technical problem to be solved by this invention is to have overcome the immutable and immutable problem of spray orifice number of fuel gas injection direction that prior art exists, provides a kind of fuel gas injection direction and the spray orifice to count variset.
For solving the problems of the technologies described above, the present invention adopts following technological scheme to realize: described fuel gas injection direction and spray orifice are counted variset and are comprised of nozzle and sealing bolt assembly.
Described sealing bolt assembly is arranged in the gas jet orifice on nozzle as being threaded.
Nozzle described in technological scheme is the cylinder mode part, left section of nozzle is the annulus cylindrical shell, right section is spherical end, the internal diameter of the inner sphere radius of spherical end and annulus cylindrical shell equates, the outer spherical surface radius of spherical end and the external diameter of annulus cylindrical shell equate, be processed with gas jet orifice on spherical end, be to be processed with the 1-1 gas jet orifice on spherical end, the 1-2 gas jet orifice, ..., the 1-M gas jet orifice, the 2-1 gas jet orifice, the 2-2 gas jet orifice, ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... with the N-M gas jet orifice, all gas jet orifices all are processed with internal thread, wherein: N is for passing through the number of planes of fuel gas inlet rotational axis, 1≤N≤4, the rotational axis number that M is gas jet orifice on the N plane, O≤M≤7, total gas injection hole count is more than or equal to 1.
Being processed with gas jet orifice on spherical end described in technological scheme refers to: the intersection of No. 1 plane of the rotational axis by fuel gas inlet and the spherical end of nozzle is No. 1 circular segment, choose the 1-1 point on No. 1 circular segment, the 1-2 point, the 1-3 point, ... with the 1-M point, with the 1-1 point, the 1-2 point, the 1-3 point, ... with the 1-M Dian Wei center of circle, and with the 1-1 point, the 1-2 point, the 1-3 point, ... with the line of 1-M point and the spherical end centre of sphere be that axis is processed respectively the 1-1 gas jet orifice, the 1-2 gas jet orifice, the 1-3 gas jet orifice, ... with the 1-M gas jet orifice, 1-1 gas jet orifice wherein, the 1-2 gas jet orifice, the 1-3 gas jet orifice, ... be respectively α with the angle of the rotational axis of the axis of 1-M gas jet orifice and fuel gas inlet 1-1, α 1-2, α 1-3... with α 1-M, 0 °≤α 1-M≤ 90 °, choose rotational axis by fuel gas inlet and with No. 1 plane included angle be β nthe N plane, the intersection of N plane and spherical end is the N circular segment, choose the N-1 point on the N circular segment, the N-2 point, the N-3 point, ... with the N-M point, with the N-1 point, the N-2 point, the N-3 point, ... with the N-M Dian Wei center of circle, with the N-1 point, the N-2 point, the N-3 point, ... with the line of N-M point and the spherical end centre of sphere be that axis is processed respectively the N-1 gas jet orifice, the N-2 gas jet orifice, the N-3 gas jet orifice, ... with the N-M gas jet orifice, N-1 gas jet orifice wherein, the N-2 gas jet orifice, the N-3 gas jet orifice, ... be respectively α with the angle of the rotational axis of the axis of N-M gas jet orifice and fuel gas inlet n-1, α n-2, α n-3... α n-M, 0 °≤ α n-M≤ 90 °.
On N plane described in technological scheme, the difference of the angle of the rotational axis of the rotational axis of two adjacent gas jet orifices and fuel gas inlet is more than or equal to 15 degree, i.e. α n-M-α n-( m-1)>=15 degree; The gas jet orifice quantity M of rotational axis on the N plane is less than or equal to 7, i.e. 0≤M≤7, and total gas jet orifice quantity should be more than or equal to 1, and number of planes N is less than or equal to 4, i.e. 1≤N≤4; N plane and No. 1 plane included angle are β n, 0 °≤β n≤ 90 °, adjacent two planes are that N plane and N-1 plane are more than or equal to 10 degree, i.e. β with the difference of the angle on No. 1 plane respectively n-β n-1>=10 °.
The 1-1 gas jet orifice of processing on spherical end described in technological scheme, 1-2 gas jet orifice ... 1-M gas jet orifice, 2-1 gas jet orifice, 2-2 gas jet orifice ..., the 2-M gas jet orifice ..., N-1 gas jet orifice, N-2 gas jet orifice ... and in the N-M gas jet orifice between adjacent both limit, hole the shortest distance should be greater than the radius of gas jet orifice.
The left end of the annulus cylindrical shell described in technological scheme is processed into fuel gas inlet, the area of the internal diameter circle of fuel gas inlet is more than or equal to the area of the internal diameter circle of gas inlet joint or jet pipe, and the area of fuel gas inlet external diameter circle is less than or equal to 1/10th of intake duct cross-section area.
Sealing bolt assembly described in technological scheme by 1-1 sealing bolt, 1-2 sealing bolt, 1-3 sealing bolt ..., 1-M sealing bolt, 2-1 sealing bolt, 2-2 sealing bolt ..., the 2-M sealing bolt ..., N-1 sealing bolt, N-2 sealing bolt, N-3 sealing bolt ... form with the N-M sealing bolt, and all be processed with outside thread on all sealing bolt screw rods.The 1-1 sealing bolt, the 1-2 sealing bolt, the 1-3 sealing bolt, ... the 1-M sealing bolt, the 2-1 sealing bolt, the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... with the N-M sealing bolt, be arranged on successively in the gas jet orifice on nozzle, be arranged on successively the 1-1 gas jet orifice on nozzle, the 1-2 gas jet orifice, ..., the 1-M gas jet orifice, the 2-1 gas jet orifice, the 2-2 gas jet orifice, ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... with in the N-M gas jet orifice and for being threaded, wherein: O≤M≤7, 1≤N≤4, total gas jet orifice quantity is more than or equal to 1.
1-1 gas jet orifice described in technological scheme, the 1-2 gas jet orifice, ..., the 1-M gas jet orifice, the 2-1 gas jet orifice, the 2-2 gas jet orifice, ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... identical with the structure of N-M gas jet orifice, the 1-1 sealing bolt, the 1-2 sealing bolt, the 1-3 sealing bolt, ..., the 1-M sealing bolt, 2-1 sealing bolt (5), the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... identical with the structure of N-M sealing bolt, all by screw rod and nut, formed.Described 1-1 sealing bolt, the 1-2 sealing bolt, the 1-3 sealing bolt, ..., the 1-M sealing bolt, the 2-1 sealing bolt, the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... with any one sealing bolt and the 1-1 gas jet orifice in the N-M sealing bolt, the 1-2 gas jet orifice, ..., the 1-M gas jet orifice, the 2-1 gas jet orifice, the 2-2 gas jet orifice, ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... equipped and be connected for thread seal mutually with any one gas jet orifice in the N-M gas jet orifice.
Compared with prior art the invention has the beneficial effects as follows:
1. fuel gas injection direction of the present invention and spray orifice are counted variset and can be changed the injection direction of combustion gas in intake duct.
2. fuel gas injection direction of the present invention and spray orifice are counted the spray orifice number that variset can change nozzle, and the direction of each spray orifice gas jet fuel is different.
3. fuel gas injection direction of the present invention and spray orifice are counted the electronic control that variset is intake port injection direction-agile technology and spray orifice number variable technique and are established solid foundation.
4. fuel gas injection direction of the present invention and spray orifice are counted variset the application on gas engine are provided technical guarantee to lean combustion modes such as gas firings in order to probe in cylinder evenly mixed combustion or port injection type layering.
5. to count variset simple in structure for fuel gas injection direction of the present invention and spray orifice, easy to process, to the motor original structure almost without any change, can obviously save development cost, shorten the R&D cycle, because sealing bolt can mount and dismount and can reuse, saved material simultaneously.
6. fuel gas injection direction of the present invention and spray orifice are counted variset and are widely used, and are applicable to the various gaseous fuel port injection type motors such as rock gas, liquefied petroleum gas (LPG), hydrogen, coal gas.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is that described fuel gas injection direction and spray orifice are counted the whole-cutaway view on the plan view that the variset structure forms;
Fig. 2 is that described fuel gas injection direction and spray orifice are counted the axonometric projection graph that the variset structure forms;
Fig. 3 is the right elevation that described fuel gas injection direction and spray orifice are counted the nozzle arrangements composition adopted in variset
Wherein: 1. nozzle, 2.1-3 sealing bolt, 3.1-1 sealing bolt, 4.1-2 sealing bolt, 5.2-1 number sealing bolt, 6.1-3 gas jet orifice, 7.1-1 gas jet orifice, 8.2-2 gas jet orifice, 9.1-2 number gas jet orifice, 10.2-1 gas jet orifice, 11. fuel gas inlets.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Consult Fig. 1 and Fig. 2, fuel gas injection direction of the present invention and spray orifice are counted variset and are comprised of nozzle 1 and sealing bolt assembly two-part.
Described sealing bolt assembly is arranged in the gas jet orifice on nozzle 1 as being threaded.
Described nozzle 1 is the cylinder mode part, left section of nozzle 1 is the annulus cylindrical shell, right section is spherical end, the annulus cylindrical shell of left section is connected with the spherical end of right section, be processed into fuel gas inlet 11 on the left side of annulus cylindrical shell, the area of the internal diameter circle of fuel gas inlet 11 is more than or equal to the area of the internal diameter circle of gas inlet joint or jet pipe, the area of fuel gas inlet 11 external diameter circles is less than or equal to 1/10th of intake duct cross-section area, in order to avoid affect the air inlet amount because the volume in intake duct is excessive; The inner sphere radius of the spherical end of right section should with fuel gas inlet 11(or annulus cylindrical shell) internal diameter equate, the outer spherical surface radius of spherical end should with fuel gas inlet 11(or annulus cylindrical shell) external diameter equate, the rotational axis of spherical end and annulus cylindrical shell rotational axis conllinear; Can be processed with as required gas jet orifice on spherical end, be on spherical end, be processed with 1-1 gas jet orifice 7,1-2 gas jet orifice 9 ..., 1-M gas jet orifice, 2-1 gas jet orifice 10,2-2 gas jet orifice 8 ... the 2-M gas jet orifice ..., N-1 gas jet orifice, N-2 gas jet orifice ... with the N-M gas jet orifice, all gas jet orifice diameters are identical, and are processed with the internal thread that structure is identical on each gas jet orifice.Distance the shortest between the limit, hole of adjacent gas jet orifice should be greater than the gas jet orifice radius.Will be by fuel gas inlet 11(or annulus cylindrical shell) No. 1 plane of rotational axis and the intersection of the spherical end of right section of nozzle 1 as No. 1 circular segment, choose the 1-1 point on No. 1 circular segment, the 1-2 point, the 1-3 point, ... the 1-M point, with the 1-1 point, the 1-2 point, the 1-3 point, ... the 1-M Dian Wei center of circle, and with the 1-1 point, the 1-2 point, the 1-3 point, ... the line of 1-M point and the right-hand member sphere centre of sphere is that axis is processed respectively 1-1 gas jet orifice 7, 1-2 gas jet orifice 9, 1-3 gas jet orifice 6, ... the 1-M gas jet orifice, wherein the 1-1 gas jet orifice 7, 1-2 gas jet orifice 9, 1-3 gas jet orifice 6, ... the less angle of the rotational axis of the axis of 1-M gas jet orifice and fuel gas inlet 11 is respectively α 1-1, α 1-2, α 1-3... α 1-M, i.e. 0 °≤α 1-M≤ 90 °.Wherein when the axis of two gas jet orifices equates with the less angle of the rotational axis of fuel gas inlet 11, both should be that rotational axis with fuel gas inlet 11 is for being distributed in symmetrically on the right-hand member sphere.Using No. 1 plane as reference level, choose the N plane, the N plane is by fuel gas inlet 11(or annulus cylindrical shell) rotational axis and with No. 1 less angle in plane be β n.The intersection of the spherical end of N plane and right section is the N circular segment, choose the N-1 point on the N circular segment, the N-2 point, the N-3 point, ... with the N-M point, with the N-1 point, the N-2 point, the N-3 point, ... with the N-M Dian Wei center of circle, with the N-1 point, the N-2 point, the N-3 point, ... with the line of N-M point and the right-hand member sphere centre of sphere be that axis is processed respectively the N-1 gas jet orifice, the N-2 gas jet orifice, the N-3 gas jet orifice, ... with the N-M gas jet orifice, N-1 gas jet orifice wherein, the N-2 gas jet orifice, the N-3 gas jet orifice, ... be respectively α with the less angle of the rotational axis of the axis of N-M gas jet orifice and fuel gas inlet 11 n-1, α n-2, α n-3... α n-M, i.e. 0 °≤α n-M≤ 90 °.Wherein when the axis of two gas jet orifices equates with the less angle of the rotational axis of fuel gas inlet 11, both should be that rotational axis with fuel gas inlet 11 is for being distributed in symmetrically on the right-hand member sphere.For the rotational axis of all gas jet orifices and the rotational axis of fuel gas inlet 11, than clip angle α, all between 0 degree and 90 degree, change, i.e. 0 °≤α≤90 °.On the N plane, the difference of the angle of the rotational axis of the rotational axis of two adjacent gas jet orifices and fuel gas inlet 11 should be more than or equal to 15 degree, i.e. α n-M-α n-(M-1)>=15 degree.The gas jet orifice quantity M of rotational axis on the N plane is less than or equal to 7, i.e. 0≤M≤7, but total gas jet orifice quantity should be more than or equal to 1.Number of planes N is less than or equal to 4, i.e. 1≤N≤4.The less angle of N plane and datum plane is β n, 0 °≤β n≤ 90 °, while equating with the less angle of datum plane for two planes, these two planes are to distribute symmetrically with respect to datum plane.Adjacent two planes are that N plane and N-1 plane are more than or equal to 10 degree, β with the difference of the less angle of datum plane respectively n-β n-1>=10 °.Be processed with 1-1 gas jet orifice 7 in embodiment, 1-2 gas jet orifice 9, 1-3 gas jet orifice 6, in 2-1 gas jet orifice 10 and 2-2 gas jet orifice 8, the rotational axis of 1-2 gas jet orifice 9 and 1-3 gas jet orifice 6 intersects and the rotational axis of residing No. 1 plane and 2-1 gas jet orifice 10 and 2-2 gas jet orifice 8 intersects and residing No. 2 planes intersect vertically mutually, the rotational axis conllinear of the intersection on two planes and fuel gas inlet 11, 1-1 gas jet orifice 7, 1-2 gas jet orifice 9, 1-3 gas jet orifice 6, the angle of the rotational axis of the rotational axis of 2-1 gas jet orifice 10 and 2-2 gas jet orifice 8 and fuel gas inlet 11 is followed successively by 0 degree, 40 degree, 50 degree, 60 degree and 70 degree.
The sealing bolt assembly by 1-1 sealing bolt 3,1-2 sealing bolt 4,1-3 sealing bolt 2 ... the 1-M sealing bolt, 2-1 sealing bolt 5,2-2 sealing bolt ..., the 2-M sealing bolt ..., N-1 sealing bolt, N-2 sealing bolt, N-3 sealing bolt ... with the N-M sealing bolt, form, each sealing bolt structure is identical, all by screw rod and nut, formed, all be processed with outside thread on the screw rod of all sealing bolts, and externally threaded structure is identical with structure and the length of length and gas jet orifice internal thread.Be processed with 1-1 sealing bolt 3,1-2 sealing bolt 4,1-3 sealing bolt 2 and 2-1 sealing bolt 5 in embodiment.1-1 sealing bolt 3,1-2 sealing bolt 4,1-3 sealing bolt 2 and 2-1 sealing bolt 5 are respectively with on mode stuck-at-１-No. 1 gas jet orifice 7,1-2 gas jet orifice 9,1-3 gas jet orifice 6 and the 2-1 gas jet orifice 10 that are threaded.1-1 sealing bolt 3 in this device, 1-2 sealing bolt 4,1-3 sealing bolt 2 and 2-1 sealing bolt 5 can with all gas jet orifices in any one gas jet orifice match.Fuel gas injection direction of the present invention and spray orifice are counted variset and are fixed on gas inlet joint or jet pipe by fuel gas inlet 11, means of fixation is determined according to the material of gas joint or jet pipe, if can machining screw, means of fixation employing thread connecting mode on gas joint or jet pipe.
Fuel gas injection direction of the present invention and spray orifice are counted on the rock gas air input joint or jet pipe that variset is arranged on motor, and extend in intake duct, it is a plurality of owing to can processing on the spherical end surface of nozzle that (the gas jet orifice quantity M of rotational axis on the N plane is less than or equal to 7, i.e. 0≤M≤7, but total gas jet orifice quantity should be more than or equal to 1, number of planes N by fuel gas inlet 11 rotational axis is less than or equal to 4, i.e. 1≤N≤4) different direction (all changes than clip angle α for the rotational axis of all gas jet orifices and the rotational axis of fuel gas inlet 11 between 0 degree and 90 degree, 0 degree≤α≤90 are spent.) spray orifice and sealing bolt can mount and dismount, thereby can realize multiple working procedure.
1. change the fuel gas injection direction of a spray orifice:
1-2 sealing bolt 4 is pulled down from 1-2 gas jet orifice 9, and it is arranged on 2-2 gas jet orifice 8, keep 1-1 sealing bolt 3,1-3 sealing bolt 2 and the mounting point of 2-1 sealing bolt 5 on nozzle 1 constant simultaneously.
During work, combustion gas sprays into fuel gas inlet 11 by rock gas air input joint or jet pipe, and combustion gas is afterwards sprayed to have become by 1-2 gas jet orifice 9 by 2-2 gas jet orifice 8 and sprayed, thereby has changed the injection direction of combustion gas.
2. the gas injection hole count becomes 2 by 1:
1-1 sealing bolt 3 is pulled down from 1-1 gas jet orifice 7, kept 1-3 sealing bolt 2,1-2 sealing bolt 4 and the mounting point of 2-1 sealing bolt 5 on nozzle 1 constant simultaneously.
During work, combustion gas sprays into fuel gas inlet 11 by rock gas air input joint or jet pipe, is sprayed to have become by 2-2 gas jet orifice 8 and 1-1 gas jet orifice 7 by 2-2 gas jet orifice 8 afterwards and sprays, and the gas injection hole count becomes 2 by 1, thereby has changed the spray orifice number.
3. the change of many nozzle hole numbers and injection direction:
Can process according to actual needs a plurality of identical gas jet orifices on the spherical end of nozzle 1, can on spherical end, process 1-1 gas jet orifice 7,1-2 gas jet orifice 9 ..., 1-M gas jet orifice, 2-1 gas jet orifice 10,2-2 gas jet orifice 8 ..., the 2-M gas jet orifice ..., N-1 gas jet orifice, N-2 gas jet orifice ... with the N-M gas jet orifice, and be processed with identical internal thread in each spray orifice, wherein: O≤M≤7,1≤N≤4, but total gas jet orifice quantity is more than or equal to 1.Process a plurality of sealing bolts that can match with the gas jet orifice screw thread simultaneously.Distance the shortest between the limit, hole of adjacent gas jet orifice should be greater than the gas jet orifice radius.
During work, select as required the gas jet orifice of different direction, sealing bolt is installed on remaining gas jet orifice to be sealed, combustion gas sprays into fuel gas inlet 11 by rock gas air input joint or jet pipe, to spray in intake duct along different directions from different gas jet orifices afterwards, realize the change of gas jet orifice number and injection direction.
The area of the internal diameter circle of fuel gas inlet 11 is more than or equal to the area of the internal diameter circle of gas inlet joint or jet pipe, and the area of fuel gas inlet 11 external diameter circles is less than or equal to 1/10th of intake duct cross-section area.
The inner sphere radius of the spherical end of right section should with fuel gas inlet 11(or annulus cylindrical shell) internal diameter equate, the outer spherical surface radius should equate with the external diameter of left section annulus cylindrical shell.

Claims (8)

1. a fuel gas injection direction and spray orifice are counted variset, it is characterized in that, described fuel gas injection direction and spray orifice are counted variset and be comprised of nozzle (1) and sealing bolt assembly;
Described sealing bolt assembly is arranged in the gas jet orifice on nozzle (1) as being threaded.
2. count variset according to fuel gas injection direction claimed in claim 1 and spray orifice, it is characterized in that, described nozzle (1) is the cylinder mode part, left section of nozzle (1) is the annulus cylindrical shell, right section is spherical end, the internal diameter of the inner sphere radius of spherical end and annulus cylindrical shell equates, the outer spherical surface radius of spherical end and the external diameter of annulus cylindrical shell equate, be processed with gas jet orifice on spherical end, be to be processed with 1-1 gas jet orifice (7) on spherical end, 1-2 gas jet orifice (9), ..., the 1-M gas jet orifice, 2-1 gas jet orifice (10), 2-2 gas jet orifice (8), ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... with the N-M gas jet orifice, all gas jet orifices all are processed with internal thread, wherein: N is for passing through the number of planes of fuel gas inlet (11) rotational axis, 1≤N≤4, the rotational axis number that M is gas jet orifice on the N plane, O≤M≤7, total gas injection hole count is more than or equal to 1.
3. count variset according to fuel gas injection direction claimed in claim 2 and spray orifice, it is characterized in that, be processed with gas jet orifice on described spherical end and refer to:
The intersection of No. 1 plane of the rotational axis by fuel gas inlet (11) and the spherical end of nozzle (1) is No. 1 circular segment, choose the 1-1 point on No. 1 circular segment, the 1-2 point, the 1-3 point, ... with the 1-M point, with the 1-1 point, the 1-2 point, the 1-3 point, ... with the 1-M Dian Wei center of circle, and with the 1-1 point, the 1-2 point, the 1-3 point, ... with the line of 1-M point and the spherical end centre of sphere be that axis is processed respectively 1-1 gas jet orifice (7), 1-2 gas jet orifice (9), 1-3 gas jet orifice (6), ... with the 1-M gas jet orifice, 1-1 gas jet orifice (7) wherein, 1-2 gas jet orifice (9), 1-3 gas jet orifice (6), ... be respectively α with the angle of the rotational axis of the axis of 1-M gas jet orifice and fuel gas inlet (11) 1-1, α 1-2, α 1-3... with α 1-M, 0 °≤α 1-M≤ 90 °, choose rotational axis by fuel gas inlet (11) and with No. 1 plane included angle be β nthe N plane, the intersection of N plane and spherical end is the N circular segment, choose the N-1 point on the N circular segment, the N-2 point, the N-3 point, ... with the N-M point, with the N-1 point, the N-2 point, the N-3 point, ... with the N-M Dian Wei center of circle, with the N-1 point, the N-2 point, the N-3 point, ... with the line of N-M point and the spherical end centre of sphere be that axis is processed respectively the N-1 gas jet orifice, the N-2 gas jet orifice, the N-3 gas jet orifice, ... .. and N-M gas jet orifice, N-1 gas jet orifice wherein, the N-2 gas jet orifice, the N-3 gas jet orifice, ... be respectively α with the angle of the rotational axis of the axis of N-M gas jet orifice and fuel gas inlet (11) n-1, α n-2, α n-3... α n-M, 0 °≤α n-M≤ 90 °.
4. count variset according to fuel gas injection direction claimed in claim 3 and spray orifice, it is characterized in that, on described N plane, the difference of the angle of the rotational axis of the rotational axis of two adjacent gas jet orifices and fuel gas inlet (11) is more than or equal to 15 degree, i.e. α n-M -α n-(M-1)>=15 degree; The gas jet orifice quantity M of rotational axis on the N plane is less than or equal to 7, i.e. 0≤M≤7, and total gas jet orifice quantity should be more than or equal to 1, and number of planes N is less than or equal to 4, i.e. 1≤N≤4; N plane and No. 1 plane included angle are β n, 0 °≤β n≤ 90 °, adjacent two planes are that N plane and N-1 plane are more than or equal to 10 degree, i.e. β with the difference of the angle on No. 1 plane respectively n -β n-1>=10 degree.
5. count variset according to fuel gas injection direction claimed in claim 2 and spray orifice, it is characterized in that, the 1-1 gas jet orifice (7) of processing on described spherical end, 1-2 gas jet orifice (9) ..., 1-M gas jet orifice, 2-1 gas jet orifice (10), 2-2 gas jet orifice (8) ..., the 2-M gas jet orifice ..., N-1 gas jet orifice, N-2 gas jet orifice ... and in the N-M gas jet orifice between adjacent both limit, hole the shortest distance should be greater than the radius of gas jet orifice.
6. count variset according to fuel gas injection direction claimed in claim 2 and spray orifice, it is characterized in that, the left end of described annulus cylindrical shell is processed into fuel gas inlet (11), the area of the internal diameter circle of fuel gas inlet (11) is more than or equal to the area of the internal diameter circle of gas inlet joint or jet pipe, and the area of fuel gas inlet (11) external diameter circle is less than or equal to 1/10th of intake duct cross-section area.
7. count variset according to fuel gas injection direction claimed in claim 2 and spray orifice, it is characterized in that, described sealing bolt assembly by 1-1 sealing bolt (3), 1-2 sealing bolt (4), 1-3 sealing bolt (2) ..., 1-M sealing bolt, 2-1 sealing bolt (5), 2-2 sealing bolt ..., the 2-M sealing bolt ..., N-1 sealing bolt, N-2 sealing bolt, N-3 sealing bolt ... form with the N-M sealing bolt, on all sealing bolt screw rods, all be processed with outside thread;
1-1 sealing bolt (3), 1-2 sealing bolt (4), 1-3 sealing bolt (2), ..., the 1-M sealing bolt, 2-1 sealing bolt (5), the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... with the N-M sealing bolt, be arranged on successively in the gas jet orifice on nozzle (1), be arranged on successively the 1-1 gas jet orifice (7) on nozzle (1), 1-2 gas jet orifice (9), ..., the 1-M gas jet orifice, 2-1 gas jet orifice (10), 2-2 gas jet orifice (8), ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... with in the N-M gas jet orifice and for being threaded, wherein: 0≤M≤7, 1≤N≤4, total gas jet orifice quantity is more than or equal to 1.
8. count variset according to fuel gas injection direction claimed in claim 7 and spray orifice, it is characterized in that, described 1-1 gas jet orifice (7), 1-2 gas jet orifice (9), ..., the 1-M gas jet orifice, 2-1 gas jet orifice (10), 2-2 gas jet orifice (8), ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... identical with the structure of N-M gas jet orifice, 1-1 sealing bolt (3), 1-2 sealing bolt (4), 1-3 sealing bolt (2), ..., the 1-M sealing bolt, 2-1 sealing bolt (5), the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... identical with the structure of N-M sealing bolt, all by screw rod and nut, formed,
Described 1-1 sealing bolt (3), 1-2 sealing bolt (4), 1-3 sealing bolt (2), ..., the 1-M sealing bolt, 2-1 sealing bolt (5), the 2-2 sealing bolt, ..., the 2-M sealing bolt, ..., the N-1 sealing bolt, the N-2 sealing bolt, the N-3 sealing bolt, ... with any one sealing bolt and the 1-1 gas jet orifice (7) in the N-M sealing bolt, 1-2 gas jet orifice (9), ..., the 1-M gas jet orifice, 2-1 gas jet orifice (10), 2-2 gas jet orifice (8), ..., the 2-M gas jet orifice, ..., the N-1 gas jet orifice, the N-2 gas jet orifice, ... equipped and be connected for thread seal mutually with any one gas jet orifice in the N-M gas jet orifice.
CN2013104403030A 2013-09-24 2013-09-24 Device with changeable gas injection direction and orifice number Pending CN103470405A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775952A (en) * 2015-05-05 2015-07-15 吉林大学 Dual-fuel engine inlet 45-degree four-hole spray pipe
CN107061061A (en) * 2017-06-28 2017-08-18 哈尔滨工程大学 A kind of integrated form of mixed admission intersects annular groove gaseous fuel jet mixing device

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US20040256495A1 (en) * 1998-09-16 2004-12-23 Baker S. Michael Dual fuel injection valve and method of operating a dual fuel injection valve
CN1723343A (en) * 2002-10-02 2006-01-18 韦斯特波特研究公司 Control method and apparatus for gaseous fuelled internal combustion engine
CN101094978A (en) * 2004-11-02 2007-12-26 西港能源公司 Method of injecting a gaseous fuel into an internal combustion engine
DE102012012450A1 (en) * 2011-06-24 2012-12-27 Caterpillar Inc. Two-fuel injector for a common-rail system
CN203532100U (en) * 2013-09-24 2014-04-09 吉林大学 Device enabling fuel gas spraying direction and number of spray holes to be variable

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Publication number Priority date Publication date Assignee Title
US20040256495A1 (en) * 1998-09-16 2004-12-23 Baker S. Michael Dual fuel injection valve and method of operating a dual fuel injection valve
CN1723343A (en) * 2002-10-02 2006-01-18 韦斯特波特研究公司 Control method and apparatus for gaseous fuelled internal combustion engine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775952A (en) * 2015-05-05 2015-07-15 吉林大学 Dual-fuel engine inlet 45-degree four-hole spray pipe
CN107061061A (en) * 2017-06-28 2017-08-18 哈尔滨工程大学 A kind of integrated form of mixed admission intersects annular groove gaseous fuel jet mixing device

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Application publication date: 20131225