CN107143416A - Water cooling air-cooled type pre-burning ignition system - Google Patents
Water cooling air-cooled type pre-burning ignition system Download PDFInfo
- Publication number
- CN107143416A CN107143416A CN201710176569.7A CN201710176569A CN107143416A CN 107143416 A CN107143416 A CN 107143416A CN 201710176569 A CN201710176569 A CN 201710176569A CN 107143416 A CN107143416 A CN 107143416A
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- Prior art keywords
- air
- air inlet
- water
- cooling
- cooling water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
- F01P1/10—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
- F01P3/16—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
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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
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention provides a kind of water cooling air-cooled type pre-burning ignition system, have the feature that, including：Pre-chamber cavity housing, insertion is in the lumen；The precombustion chamber seat of honour, is set in the lumen, inside has the through hole for being used for installing spark plug；Flame-thrower nozzle, is removably mounted on pre-chamber cavity housing；Spark plug pitman, is arranged in through hole；Precombustion chamber water jacket, is enclosed on pre-chamber cavity housing and the precombustion chamber seat of honour；Air inlet unit, and cooling water inlet unit.The water jacket air-cooled type pre-burning ignition system of the present invention can not only be to the cooling of the precombustion chamber seat of honour, spark plug, pre-chamber cavity housing and nozzle, radiating, and can realize that alternating is passed through cooling air and cooling water, it can prevent pre-chamber cavity housing from situation about being quenched occur, increase its service life.
Description
Technical field
The present invention relates to internal combustion engine, and in particular to a kind of pre-burning ignition system of internal combustion engine.
Background technology
Huge discharge gas internal-combustion engine typically uses precombustion-chamber ignition technology, after a small amount of fuel gas is conveyed to precombustion chamber,
Spark plug in pre-burning room housing produces spark ignition fuel gas and the mixture of air produces flame and sprayed by nozzle,
The flame of ejection ignites substantial amounts of fuel gas mixture, and then work by combustion in a combustion chamber.
In the prior art, the cylinder head of internal combustion engine is brought into close contact with pre-burning room housing, forms an integral thickness larger
Structure, pre-burning room housing almost completely cuts off with the external world, radiating effect extreme difference, and causes precombustion chamber after the work of a period of time, in advance
The temperature of combustion room housing is up to several Baidu, while the temperature of spark plug is also very high.
Many problems occur in the high temperature of pre-burning room housing, on the one hand, too high temperature is possible to reach that fuel gas is mixed
The burning-point of compound, such that fuel gas mixture will be burnt immediately when being contacted with housing, without by spark plug
The control of igniting, that is to say, that the pre-burning room housing of high temperature can to burn always inside gas internal-combustion engine, and can not be by spark
Plug lights a fire normally to control simultaneously work by combustion, i.e., can not normally work.On the other hand, too high temperature, can cause pre-
Combustion room nozzle melts damage because of overheat or the direction of spray orifice shifts, and causes internal combustion engine cisco unity malfunction；And
The service life of spark plug can also be greatly shortened.In addition, the high temperature of spark plug can also cause dangerous, fire of gently then leaping up of lighting a fire
Phenomenon, more serious words, may burst because of thermal deformation.
In order to be cooled down to pre-burning room housing and spark plug, a kind of method is to carry out single water cooling, however, the boiling of water
Point is at normal atmospheric pressure 100 DEG C, when cooling water is contacted with the pre-burning room housing of up to several Baidu, pre-chamber cavity shell
Body occurs to be quenched and be possible to damage, so that the service life of pre-chamber cavity housing is substantially reduced；Another method is
Progress is individually air-cooled, and still, the specific heat capacity of air is very small, and when cooling to pre-burning room housing, needs are passed through a large amount of cold
But air, substantial amounts of cooling air can dilute gas concentration in pre-chamber cavity so that the flame that pre-chamber cavity sprays, which diminishes, to shorten,
Jet power is not enough, so that the gaseous mixture in combustion chamber can not burn completely.Even precombustion chamber gaseous mixture is excessively dilute and cause pre-
Combustion room can not light a fire.
The content of the invention
The present invention is carried out to solve the above problems, it is therefore intended that provide a kind of radiating efficiency height, service life
Long, the water cooling that can be alternately passed through cooling water and cooling air to cool to spark plug, precombustion chamber nozzle, radiate is empty
Cold type pre-burning ignition system.
The invention provides a kind of water cooling air-cooled type pre-burning ignition system, for the internal combustion engine for the cylinder head with inner chamber
Radiating, it is characterised in that including：Pre-chamber cavity housing, in the lumen, inside has pre-chamber cavity for insertion；The precombustion chamber seat of honour, if
Put in the lumen, one end is connected with pre-chamber cavity housing, inside has the through hole for being used for installing spark plug；Flame-thrower nozzle, can
Releasably it is arranged on pre-chamber cavity housing, including the cylindrical tube with cavity；Spark plug pitman, is arranged on through hole
Interior, one end is connected with spark plug, has first annular gap between the spark plug pitman and the inwall at the precombustion chamber seat of honour, and this
One annular gap is used as air inlet passage；Precombustion chamber water jacket, is enclosed on pre-chamber cavity housing and the precombustion chamber seat of honour, its one end
First through hole is provided between outer wall and the inwall of cylinder head, the first through hole is used as intake tunnel；Air inlet unit, passes through
Air inlet pipeline is connected with air inlet passage, for sucking the air in the external world and blasting air into air inlet passage；With
And cooling water inlet unit, with water inlet end and water side, for conveying cooling water, including the water circulation connected with intake tunnel
Pipeline and the water circulating pump being arranged on the water circulation pipe, wherein, the flame that a plurality of insertion is provided with cylindrical tube leads to
Road and some nozzle cooling water channels of the setting that is staggered with a plurality of passage of flame, inwall and the pre-chamber cavity shell of precombustion chamber water jacket
The outer wall of body has the second annular gap, and second annular gap is connected as the first cooling water channel with nozzle cooling water channel, in advance
Multiple second through holes are provided with the wall for firing the room seat of honour, second through hole is used as the second cooling water channel, its one end and the first cooling
Water channel is connected, and at least one third through-hole, one end of the third through-hole and air inlet are additionally provided with the wall at the precombustion chamber seat of honour
Passage is connected, and the other end is connected with pre-chamber cavity, and intake tunnel is introduced into cooling water into nozzle cooling water channel by water circulation pipe,
The cooling water is flowed into the first cooling water channel from nozzle cooling water channel, then is flowed into from the first cooling water channel after the second cooling water channel
Discharge, air inlet unit is blasted air into air inlet passage by air inlet pipeline after ambient inlet air, air
Entered to from air inlet passage after third through-hole and enter pre-chamber cavity from third through-hole again, and by after pre-chamber cavity from flame
Passage is discharged.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that, in addition to：Extremely
Few two control valves, are separately positioned on air inlet pipeline and water circulation pipe, for controlling.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that, in addition to：Extremely
Few two controllers, are accordingly connected, the open and close for controlling control valve with control valve.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, control
Device is time controller, between the duration and time of the break-make that controls air inlet unit and cooling water inlet unit
Every.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that, in addition to：In advance
Chamber pressure block is fired, is fixedly connected, for fixing the precombustion chamber seat of honour and precombustion chamber water jacket, sets thereon with the other end at the precombustion chamber seat of honour
There is fresh air inlet, one end of the fresh air inlet is connected with air inlet passage, and the other end is connected with air inlet pipeline.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, air
Air admission unit also includes air accumulator, and the air accumulator is connected by air inlet pipeline with air inlet passage, for storing compressed air
And provide air in air inlet passage.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, air
Air admission unit also includes air compressor, and the air compressor is connected with air accumulator, for compressing and storing extraneous air
Into air accumulator.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, air inlet
Valve for pressure difference is provided with pipeline, the valve for pressure difference is used to control the admission pressure on air inlet pipeline.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, cylinder
There are six spray orifices, this six spray orifices are equably arranged on the perisporium of the cylindrical tube of sustained height on the perisporium of cylinder, spray
Hole is used as passage of flame.
In the water cooling air-cooled type pre-burning ignition system that the present invention is provided, it can also have the feature that：Wherein, cylinder
The inwall of lid bottom is provided with slot block, and first through hole is arranged on slot block.
The effect of invention and effect
According to water cooling air-cooled type pre-burning ignition system involved in the present invention, because the pre-burning ignition system has precombustion chamber
Cavity shell, the precombustion chamber seat of honour, flame-thrower nozzle, spark plug pitman, precombustion chamber water jacket, air inlet unit and cooling water water inlet
Unit, one side intake tunnel can be introduced cooling water to nozzle cooling water channel by water circulation pipe, and cooling water is then from nozzle
Cooling water channel is flowed into the first cooling water channel, then is flowed into discharge after the second cooling water channel from the first cooling water channel；On the other hand,
Air inlet unit is blasted air into air inlet passage by air inlet pipeline after ambient inlet air, and air is from air
Inlet channel is entered to after third through-hole enters pre-chamber cavity from third through-hole again, and by being discharged after pre-chamber cavity from spray orifice.
Also, air intake conduit and water circulation pipe can by controller control, so, water jacket air-cooled type pre-burning igniting of the invention
System can not only be to the cooling of the precombustion chamber seat of honour, spark plug, pre-chamber cavity housing and nozzle, radiating, and can realize
Alternating is passed through cooling air and cooling water, by first leading to cooling air to pre-chamber cavity housing precooling, then is passed through cooling water and enters one
Step cooling, so as to prevent pre-chamber cavity housing from situation about being quenched occur, increases its service life.
Brief description of the drawings
Fig. 1 is the structural representation of water cooling air-cooled type pre-burning ignition system in embodiments of the invention；
Fig. 2 is the cutaway view Amplified image in B-B directions in Fig. 1；
Fig. 3 is the cutaway view Amplified image in C-C directions in Fig. 1；
Fig. 4 is the structural representation of embodiments of the invention Flame nozzle, wherein, Fig. 4 a face for flame-thrower nozzle
Figure, Fig. 4 b are Fig. 4 a top view, and Fig. 4 c are the sectional view in D-D directions in Fig. 4 b, and Fig. 4 d are the section view in E-E directions in Fig. 4 b
Figure, Fig. 4 e are the sectional view in F-F directions in Fig. 4 a；And
Fig. 5 is the structural representation of water cooling air-cooled type pre-burning ignition system in variation of the invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed the water cooling air-cooled type pre-burning ignition system of the present invention.
Fig. 1 is the structural representation of water cooling air-cooled type pre-burning ignition system in embodiments of the invention.
As shown in figure 1, water cooling air-cooled type pre-burning ignition system 100 is used for radiating for internal combustion engine (not shown), and it is interior
There is inner chamber in the cylinder head 200 of combustion engine.Water cooling air-cooled type pre-burning ignition system 100 includes pre-chamber cavity housing 10, precombustion chamber
It is the seat of honour 20, flame-thrower nozzle 30, spark plug pitman 40, precombustion chamber water jacket 50, precombustion chamber briquetting 60, air inlet unit 70, cold
But water inlet unit 80, control valve 90 and controller (not shown).
Pre-chamber cavity housing 10 is vertically embedded in the inner chamber of cylinder head 200, and it is in back taper that its inside, which has one,
Pre-chamber cavity 11, be welded with spiral radiating fin (not shown), the radiating on the outer wall of pre-chamber cavity housing 10
Fin conducts heat for strengthening pre-chamber cavity housing 10.
Fig. 2 is the cutaway view Amplified image in B-B directions in Fig. 1.
Fig. 3 is the cutaway view Amplified image in C-C directions in Fig. 1.
As shown in Figure 1, 2, 3, the precombustion chamber seat of honour 20 is arranged in the inner chamber of cylinder head 200, its lower end and pre-chamber cavity
The upper end of housing 10 is fixed by socket, and the inside at the precombustion chamber seat of honour 20 has through hole, and the through hole is used for installing spark plug 21, fire
The lower end of flower plug 21 is sealed with the internal whorl of the precombustion chamber seat of honour 20.Between the inwall and spark plug pitman 40 at the precombustion chamber seat of honour 20
With first annular gap, the first annular gap is used as air inlet passage 22.It is additionally provided with the wall at the precombustion chamber seat of honour 20
Multiple second through holes 23, second through hole 23 is used as the second cooling water channel.In addition, being provided with least in the wall at the precombustion chamber seat of honour 20
One third through-hole 24, the upper end of third through-hole 24 is connected with air inlet passage 22, the lower end of third through-hole 24 and pre-burning
Chamber 11 is connected.In the present embodiment, third through-hole 24 has four, and the second through hole 23 has six, four third through-holes 24,
Two through holes 23 are circumferentially arranged in the wall at the precombustion chamber seat of honour 20.
Two fourth holes 25 are additionally provided with the wall at the precombustion chamber seat of honour 20, two fourth holes 25 enter with extraneous combustion gas
Feed channel (not shown) is connected, and two fourth holes 25 are as gas inlet passage and symmetrical in the precombustion chamber seat of honour 20
Set, two gas inlet passages, four third through-holes 24 and six the second cooling water channels are staggered setting.The precombustion chamber seat of honour 20
Top outer wall on be provided with the second annular groove, be arranged with O-ring 26 on second annular groove so that the precombustion chamber seat of honour
The outer wall on 20 top and the inner wall sealing of precombustion chamber water jacket 50；There is the 3rd annular on the outer wall of the bottom at the precombustion chamber seat of honour 20
O-ring 26 is arranged with groove, the 3rd annular groove so that the outer wall of the bottom at the precombustion chamber seat of honour 20 and pre-chamber cavity housing
10 inner sealing.In addition, being provided with check valve 27 in four third through-holes 24 so that air is unidirectional out of third through-hole 24
Enter in pre-chamber cavity 11.
Fig. 4 is the structural representation of embodiments of the invention Flame nozzle, wherein, Fig. 4 a face for flame-thrower nozzle
Figure, Fig. 4 b are Fig. 4 a top view, and Fig. 4 c are the sectional view in D-D directions in Fig. 4 b, and Fig. 4 d are the section view in E-E directions in Fig. 4 b
Figure, Fig. 4 e are the sectional view in F-F directions in Fig. 4 a.
As shown in figs. 4a-4e, flame-thrower nozzle 30 is connected with the bottom of pre-chamber cavity housing 10, and it includes installation set 31 and circle
Column casing body 32.
The outer wall of the upper end of installation set 31 has is provided with O-ring 26 and pre-burning on annular groove (not marked in figure), annular groove
The inner wall sealing of room water jacket 50, the upper end and the lower end of pre-chamber cavity housing 10 of installation set 31 connect together, for the company of sealing
Connect installation set 31 and pre-chamber cavity housing 10.In the present embodiment, the external diameter of installation set 31 is 65mm.
The upper end of cylindrical tube 32 is connected with the lower end of installation set 31, and it is the six of 1~8mm that width is provided with its perisporium
Individual spray orifice, this six spray orifices are equably arranged in the upper of sustained height of cylindrical tube 32, and this six spray orifices are used as passage of flame
321, the flame in cylindrical tube is sprayed from passage of flame 321, and the flame with six insertions is additionally provided with cylindrical tube 32
Passage 321, which mutually staggers, sets some nozzle cooling water channels 322, and in the present embodiment, nozzle cooling water channel 322 has six
Bar, the external diameter 35mm of cylindrical tube 32, cylindrical tube 32 is integrally formed with installation set 31, and the width of passage of flame 321 is
5mm。
Spark plug pitman 40 is arranged in the through hole at the precombustion chamber seat of honour 20, and its lower end and the upper end of spark plug 21 cover
Connect, upper end is stretched out from precombustion chamber briquetting 60, and the lower end of spark plug pitman 40 is provided with circular hole, this circular hole is used for accommodating spark
Plug 21, the inwall of spark plug 21, which is provided with first annular groove, first annular groove, is provided with O-ring 26 so that spark plug
Pitman 40 is tightly connected with spark plug 21, the upper end of spark plug 21 also have one through spark plug pitman 40 and with the external world
The connected spark plug connecting line 28 of high-voltage ignition coil, high-voltage ignition coil is controlled by the ignition module (being not drawn into figure) of internal combustion engine
System igniting.In the present embodiment, spark plug pitman 40 is made of polytetrafluoroethylene (PTFE).
Precombustion chamber water jacket 50 is enclosed on pre-chamber cavity housing 10 and the precombustion chamber seat of honour 20, its outer wall and cylinder head 200
The square first through hole for having that width is 2~10mm on the slot block 51 that can be plugged, slot block 51 is provided between inwall
(being not drawn into figure), the first through hole is as intake tunnel, and the cooling water in water circulation pipe enters from intake tunnel, in this reality
Apply in example, the width of intake tunnel is 4mm.
There is the second annular gap, second ring between the inwall of precombustion chamber water jacket 50 and the outer wall of pre-chamber cavity housing 10
Shape gap is connected as the first cooling water channel 52, the lower end of the first cooling water channel 52 with six nozzle cooling water channels 322, upper end with
Second cooling water channel is connected.The outer wall on the top of precombustion chamber water jacket 50 is provided with fourth annular groove, is arranged with the groove O-shaped
Circle 26, for the inner wall sealing with cylinder head 200.
The upper end at precombustion chamber briquetting 60 and the precombustion chamber seat of honour 20 is fixed by screw, and it is used for fixing the precombustion chamber seat of honour 20,
Fresh air inlet 61 is horizontally arranged with precombustion chamber briquetting 60, the right-hand member of fresh air inlet 61 is connected with air inlet passage 22, fresh air inlet 61
Left end connected with air inlet pipeline.Annular effluent trough 62 is additionally provided with precombustion chamber briquetting 60, annular effluent trough 62 and second is cold
But water channel is connected, and the cooling water after heat exchange is flowed in annular effluent trough 62 from the second cooling water channel, then is flowed by annular effluent trough 62
Go out.
Air inlet unit 70 is connected by air inlet pipeline 71 with fresh air inlet 61, and it is used for sucking the air in the external world and by sky
Tympanites enters into fresh air inlet 61, then is entered by fresh air inlet 61 in air inlet passage 22, and air inlet unit 70 includes pumping
Equipment 72, air filtering core 73 and aerial cooler 74.
Air-extractor 72 has air inlet and gas outlet, and it is used for drawing the air in the external world, and in the present embodiment, pumping is set
Standby 72 be turbocharger, and the high-temp waste gas that it is produced by internal combustion engine itself drives, and so, realizes the effective and reasonable land productivity of resource
With, it is to avoid the wasting of resources that other configuration equipment is caused.
Air filtering core 73 is mounted by means of bolts at the air inlet of turbocharger, and it is used for filtering out the ash in air
Dirt, the grains of sand.In the present embodiment, air filtering core 73 is air filter filter core.
Aerial cooler 74 is connected with the gas outlet of turbocharger, and the air that it is used for sucking turbocharger is carried out
Cool.The gas outlet of aerial cooler 74 is connected with air inlet pipeline 71.
Cooling water inlet unit 80 includes water circulation pipe 81 and water circulating pump 82.
Water circulation pipe 81 is used for conveying cooling water, and the water after being exchanged heat with pre-chamber cavity housing 10 and the precombustion chamber seat of honour 20 exists
Cooled down in water circulation pipe 81 and by outside air-cooler (being not drawn into figure), the water after cooling returns again to logical to water inlet
In road, nozzle cooling water channel 322, the first cooling duct 52 and the second cooling duct, so as to pre-chamber cavity housing 10 and in advance
The combustion room seat of honour 20 is cooled down, cooled again, realizes recycling for water, and water circulation pipe 81 has water inlet end and water side, entered
Water end (W.E.) is connected with annular effluent trough 62, and water side is connected with intake tunnel, in the present embodiment, and water circulation pipe 81 is by stainless steel
Pipe is formed by connecting, further, it is also possible to using copper pipe or rubber tube.
Water circulating pump 82 is arranged on water circulation pipe 81, and it is used for pressurizeing to cooling water and pumping cooling water, makes
Cooling water is obtained to enter in intake tunnel by water circulation pipe 81.In the present embodiment, water circulating pump 82 uses high temperature magnetic force
Pump, further, it is also possible to using high-temperature centrifugal pump.
Two control valves 90 are separately positioned on air inlet pipeline 71 and water circulation pipe 81, are respectively intended to control cooling air
With being passed through for cooling water, two control valves 90 can be opened individually also while opening.
Controller (not shown) is connected with two control valves 90, for controlling unlatching and the pass of two control valves 90
Close, in the present embodiment, controller is time controller, it can control air inlet unit to be passed through cooling air and control cold
But water inlet unit is passed through duration and the time interval of cooling water so that cooling water and cooling air are alternately passed through, for example,
Controller, which works, causes the control valve 90 on air inlet pipeline 71 to open, and 81 control valve 90 is closed on water circulation pipe, is first passed through
The cooling air of ten minutes enters precooling to pre-chamber cavity housing, and then controller work causes the control valve on water circulation pipe
90 are opened, and the control valve 90 on air inlet pipeline 71 is closed, and is passed through cooling water within ensuing ten minutes so that cooling water and cooling are empty
Gas is alternately passed through, and can also be passed through cooling water and cooling air simultaneously certainly, the time being passed through can also be by setting time control
Device is changed.
The operation principle of the water cooling air-cooled type pre-burning ignition system 100 of the present embodiment is：
The water cooling air-cooled type pre-burning device 100 of this implementation is respectively adopted cooling water and cooling air and alternately spark plug is connected
Rod 40, spark plug 21, the precombustion chamber seat of honour 20, pre-chamber cavity housing 10 and flame-thrower nozzle 30 are cooled, radiated.
Less short arrow represents the control valve on cooling air flow direction, controller control air inlet pipeline 71 in Fig. 1
90 are opened, and the control valve 90 on water circulation pipe 81 is closed, and the cooling air sucked from ambient air source passes through air inlet pipeline 71
Enter in fresh air inlet 61, then entered by fresh air inlet 61 in air inlet passage 22, then, cooling air is from air inlet
Passage 22 is entered in four third through-holes 24, then by the control of check valve 27, is entered in pre-chamber cavity 11, in precombustion chamber
Lighted a fire in chamber 11 with the fuel gas mixing being passed through from gas inlet passage, flame sprays from six passage of flames 321, this
During, cooling air realize to spark plug pitman 30, spark plug 21, the precombustion chamber seat of honour 20, pre-chamber cavity housing 10 with
And cooling, the radiating of flame-thrower nozzle 30.
Larger short arrow represents the control valve 90 on flow of cooling water direction, controller control air inlet pipeline 71 in Fig. 1
Close, the control valve 90 on water circulation pipe 81 is opened, the cooling water flowed into from water circulation pipe 81 is flowed into by intake tunnel
In six nozzle cooling water channels 322, cooling water is flowed into the first cooling water channel 52 from nozzle cooling water channel 322 again, then by
One cooling water channel 52 is flowed into the second cooling water channel, then flows in annular effluent trough 62, finally returns to from the second cooling water channel
Into water circulation pipe 81, this process, cooling water is simultaneously to the precombustion chamber seat of honour 20, pre-chamber cavity housing 10 and flame-thrower nozzle
30 contact heat-exchangings, so as to cool to the precombustion chamber seat of honour 20, pre-chamber cavity housing 10 and nozzle 12, radiate.
<Variation>
Fig. 5 is the structural representation of water cooling air-cooled type pre-burning ignition system in variation of the invention.
As shown in figure 5, in this variation, give identical to this variation of structure same as the previously described embodiments and compile
Number, and save identical explanation.
Air inlet unit 70 includes air-extractor 72, air filtering core 73, aerial cooler 74, air accumulator 75, air pressure
Contracting machine 76 and valve for pressure difference 77.
It is divided into two pipelines on air inlet pipeline 71, a pipeline is connected with the gas outlet of air accumulator 75, air accumulator 75 enters
Gas port is connected with air compressor 76, and air compressor 76 is as air inlet source, and the air that it has compressed enters air accumulator 75
Store.
Structure in another pipeline is identical with structure in embodiment, and the infall between two pipelines is provided with valve for pressure difference
77, sub-cooled air is automatically adjusted into admission line 71 through valve for pressure difference 77, is finally sent into pre-chamber cavity 11.In this pipe
Lu Shang, air is drawn into turbocharger by air filtering core 73, the sub-cooled air after being cooled down through aerial cooler 74
It is used as the control pressure of valve for pressure difference 77.The pressure difference of valve for pressure difference 77 is adjusted by the adjusting nut in valve for pressure difference so that valve for pressure difference 77
The pressure of admission line 71 is consistently greater than turbocharger supercharged 0.2~0.5Kg of pressure after control, so can be to precombustion chamber
Chamber 11 preferably carries out scavenging, so that preferably to spark plug pitman 30, spark plug 21, the precombustion chamber seat of honour 20, pre-chamber cavity
Housing 10 and flame are cooled down, cooled, radiated.
The effect of embodiment and effect
Water cooling air-cooled type pre-burning ignition system according to involved by the present embodiment, because the pre-burning ignition system has pre-burning
Chamber housing, the precombustion chamber seat of honour, flame-thrower nozzle, spark plug pitman, precombustion chamber water jacket, air inlet unit and cooling water enter
Gas unit, one side intake tunnel can be introduced cooling water to nozzle cooling water channel by water circulation pipe, and cooling water is then from spray
Mouth cooling water channel is flowed into the first cooling water channel, then is flowed into discharge after the second cooling water channel from the first cooling water channel；The opposing party
Face, air inlet unit is blasted air into air inlet passage by air inlet pipeline after ambient inlet air, air from
Air inlet passage is entered to after third through-hole enters pre-chamber cavity from third through-hole again, and by being arranged after pre-chamber cavity from spray orifice
Go out.Also, air intake conduit and water circulation pipe can by controller control, so, the water jacket air-cooled type of the present embodiment is pre-
Fire cooling, radiating, Er Qieneng that ignition system can not only be to the precombustion chamber seat of honour, spark plug, pre-chamber cavity housing and nozzle
Enough realize alternately is passed through cooling air and cooling water, by first leading to cooling air to pre-chamber cavity housing precooling, then is passed through cooling
Water is further cooled down, and so as to prevent pre-chamber cavity housing from situation about being quenched occur, increases its service life.
In addition, in the present embodiment, due to being provided with check valve in four third through-holes, cooling air can only be from
Three through holes enter in pre-chamber cavity, and are unable to reverse movement, so ensure that the gas safe mixing in pre-chamber cavity, pre-burning
The flame that room blast is produced can not be tempered the inflow precombustion chamber seat of honour and its pipeline, so as to ensure the safe operation of internal combustion unit.
In addition, in the present embodiment, because spark plug pitman lower end encases spark plug upper end, and spark plug and connection
Rod is sealed with O-ring, in such manner, it is possible to prevent air from being spilt from spark plug pitman, spark plug pitman uses polytetrafluoroethylene (PTFE)
Material, heatproof insulation prevents spark plug from altering fire.
In addition, in the present embodiment, because the outer wall of the bottom at the precombustion chamber seat of honour is provided with the 3rd annular groove, the 3rd annular
Inner wall sealing of the groove provided with O-ring and pre-chamber cavity housing so that the precombustion chamber seat of honour can intactly with pre-chamber cavity shell
Body palette, prevents cooling air from spilling, and prevents from causing danger in pre-burning, the extension precombustion chamber seat of honour and pre-chamber cavity housing
Service life.
In addition, in the present embodiment, what can be plugged due to being provided between cylinder head inwall and precombustion chamber water jacket inserts
Geosynclinal block, when introducing cooling water for a long time from engine cycle pipeline, the incrustation scale in cooling water can remain in the through hole of slot block
In, cooling effect be likely to it is impacted, at this point it is possible to extract slot block and it is cleaned so that cooling water can be suitable
Smooth enters from intake tunnel, and cooling effectiveness is uprised.
In addition, in the present embodiment, because the outer wall of pre-chamber cavity housing is provided with radiating fin, on the one hand, so that connecing
Tactile area increase so that the heat of high temperature on pre-chamber cavity housing can quickly pass to it is cold in the first cooling water channel
But in water；On the other hand, radiating fin can strengthen the flowing of water, produce stronger sinuous flow, and heat transfer coefficient is bigger, radiating effect
Also it is more preferable.Because such setting enables to pre-burning room housing preferably to radiate, internal combustion engine is prevented to be burned.
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. a kind of water cooling air-cooled type pre-burning ignition system, for the internal combustion engine radiating for the cylinder head with inner chamber, its feature exists
In, including：
Pre-chamber cavity housing, is embedded in the inner chamber, and inside has pre-chamber cavity；
The precombustion chamber seat of honour, is arranged in the inner chamber, and one end is connected with the pre-chamber cavity housing, and inside, which has, to be used to install fire
Hua Sai through hole；
Flame-thrower nozzle, is removably mounted on the pre-chamber cavity housing, including the cylindrical tube with cavity；
Spark plug pitman, is arranged in the through hole, and one end is connected with the spark plug, the spark plug pitman with it is described
There is first annular gap, the first annular gap is used as air inlet passage between the inwall at the precombustion chamber seat of honour；
Precombustion chamber water jacket, is enclosed on the pre-chamber cavity housing and the precombustion chamber seat of honour, the outer wall of its one end and the cylinder
First through hole is provided between the inwall of lid, the first through hole is used as intake tunnel；
Air inlet unit, is connected by air inlet pipeline with the air inlet passage, for sucking the air in the external world and by sky
Tympanites enters into the air inlet passage；And
Cooling water inlet unit, with water inlet end and water side, for conveying cooling water, including connected with the intake tunnel
Water circulation pipe and the water circulating pump being arranged on the water circulation pipe,
Wherein, the passage of flame of a plurality of insertion is provided with the cylindrical tube and is staggered setting with a plurality of passage of flame
Some nozzle cooling water channels,
The outer wall of the inwall of the precombustion chamber water jacket and the pre-chamber cavity housing has between the second annular gap, second annular
Gap is connected as the first cooling water channel with the nozzle cooling water channel,
Multiple second through holes are provided with the wall at the precombustion chamber seat of honour, second through hole is used as the second cooling water channel, its one end
Connected with first cooling water channel,
At least one third through-hole is additionally provided with the wall at the precombustion chamber seat of honour, one end of the third through-hole is entered with the air
Gas passage is connected, and the other end is connected with the pre-chamber cavity,
The intake tunnel is introduced into cooling water into the nozzle cooling water channel by the water circulation pipe, and the cooling water is from described
Nozzle cooling water channel is flowed into first cooling water channel, then is flowed into second cooling water channel from first cooling water channel
After discharge,
The air inlet unit is blasted air to the air inlet passage by air inlet pipeline after ambient inlet air
In, air is entered to after the third through-hole from the air inlet passage enters the precombustion chamber from the third through-hole again
Chamber, and by being discharged after the pre-chamber cavity from the passage of flame.
2. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that also include：
At least two control valves, are separately positioned on the air inlet pipeline and the water circulation pipe, for controlling.
3. water cooling air-cooled type pre-burning ignition system according to claim 2, it is characterised in that also include：
At least two controllers, are accordingly connected with the control valve, the open and close for controlling the control valve.
4. water cooling air-cooled type pre-burning ignition system according to claim 3, it is characterised in that：
Wherein, the controller is time controller, for controlling the air inlet unit and the cooling water inlet unit
Break-make duration and time interval.
5. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that also include：
Precombustion chamber briquetting, is fixedly connected with the other end at the precombustion chamber seat of honour, for fixing the precombustion chamber seat of honour and described
Precombustion chamber water jacket, is provided with fresh air inlet, and one end of the fresh air inlet is connected with the air inlet passage, the other end with it is described
Air inlet pipeline is connected.
6. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that：
Wherein, the air inlet unit also includes air accumulator, and the air accumulator passes through the air inlet pipeline and the air inlet
Passage is connected, and for storing compressed air and is provided air in the air inlet passage.
7. water cooling air-cooled type pre-burning ignition system according to claim 6, it is characterised in that：
Wherein, the air inlet unit also includes air compressor, and the air compressor is connected with the air accumulator, for inciting somebody to action
Extraneous air compresses and is stored into the air accumulator.
8. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that：
Wherein, valve for pressure difference is provided with the air inlet pipeline, the valve for pressure difference is used to control the admission pressure on the air inlet pipeline.
9. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that：
Wherein, there are six spray orifices, this six spray orifices are equably arranged in the institute of sustained height on the perisporium of the cylindrical tube
State on the perisporium of cylindrical tube, the spray orifice is used as the passage of flame.
10. water cooling air-cooled type pre-burning ignition system according to claim 1, it is characterised in that：
Wherein, the inwall of the cylinder head bottom is provided with slot block, and the first through hole is arranged on the slot block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176569.7A CN107143416B (en) | 2017-03-23 | 2017-03-23 | Water cooling air-cooled type pre-burning ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176569.7A CN107143416B (en) | 2017-03-23 | 2017-03-23 | Water cooling air-cooled type pre-burning ignition system |
Publications (2)
| Publication Number | Publication Date |
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| CN107143416A true CN107143416A (en) | 2017-09-08 |
| CN107143416B CN107143416B (en) | 2019-06-04 |
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| CN201710176569.7A Active CN107143416B (en) | 2017-03-23 | 2017-03-23 | Water cooling air-cooled type pre-burning ignition system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074224A1 (en) * | 2008-12-26 | 2010-07-01 | 三菱重工業株式会社 | Gas engine with bore cool holes having spark plug |
| CN103821606A (en) * | 2014-03-03 | 2014-05-28 | 潍柴西港新能源动力有限公司 | Pre-combustion generator |
| CN104454220A (en) * | 2013-09-25 | 2015-03-25 | Ge延巴赫两合无限公司 | CYLINDER HEAD and internal combustion engine comprising the same |
| CN104454129A (en) * | 2013-09-25 | 2015-03-25 | Ge延巴赫两合无限公司 | Arrangement comprising a cylinder head and a prechamber system |
| US20160333771A1 (en) * | 2015-05-11 | 2016-11-17 | Caterpillar Inc. | Fuel Combustion System, Nozzle for Prechamber Assembly Having Coolant Passage, and Method of Making Same |
-
2017
- 2017-03-23 CN CN201710176569.7A patent/CN107143416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074224A1 (en) * | 2008-12-26 | 2010-07-01 | 三菱重工業株式会社 | Gas engine with bore cool holes having spark plug |
| CN104454220A (en) * | 2013-09-25 | 2015-03-25 | Ge延巴赫两合无限公司 | CYLINDER HEAD and internal combustion engine comprising the same |
| CN104454129A (en) * | 2013-09-25 | 2015-03-25 | Ge延巴赫两合无限公司 | Arrangement comprising a cylinder head and a prechamber system |
| CN103821606A (en) * | 2014-03-03 | 2014-05-28 | 潍柴西港新能源动力有限公司 | Pre-combustion generator |
| US20160333771A1 (en) * | 2015-05-11 | 2016-11-17 | Caterpillar Inc. | Fuel Combustion System, Nozzle for Prechamber Assembly Having Coolant Passage, and Method of Making Same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107143416B (en) | 2019-06-04 |
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