CN106884706A - Water-jacket typ pre-burning device - Google Patents
Water-jacket typ pre-burning device Download PDFInfo
- Publication number
- CN106884706A CN106884706A CN201710057959.2A CN201710057959A CN106884706A CN 106884706 A CN106884706 A CN 106884706A CN 201710057959 A CN201710057959 A CN 201710057959A CN 106884706 A CN106884706 A CN 106884706A
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- CN
- China
- Prior art keywords
- water
- cooling water
- precombustion chamber
- jacket
- burning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a kind of water-jacket typ pre-burning device, it is fixedly installed in the inner chamber of the cylinder head of internal combustion engine, it is characterised in that including：Precombustion chamber part, is fixedly installed in the lumen, including embedded pre-burning room housing in the lumen and the spark plug in pre-burning room housing vertically；And precombustion chamber water jacket, it is enclosed within pre-burning room housing, through hole is provided between its outer wall and the inwall of cylinder head, the through hole is used as intake tunnel, wherein, there is the gap of annular, the gap connects as the first cooling water channel with intake tunnel between the inwall of pre-burning room housing and precombustion chamber water jacket, intake tunnel is introduced into cooling water in the first cooling water channel via outside engine cycle pipeline, the cooling water ring around precombustion chamber housing fluid exchanged heat after outflow.Water-jacket typ pre-burning device of the invention can allow cooling water energy to be flowed out from top after being flowed into from bottom, it is to avoid flow blind angle, can be to the cooling of pre-burning room housing, radiating, and radiating efficiency is high, long service life.
Description
Technical field
The present invention relates to internal combustion engine, and in particular to a kind of pre-burning device 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 the mixture of spark ignition fuel gas and air to produce 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 for firing room housing is up to several Baidu.
The high temperature of pre-burning room housing occurs many problems, on the one hand, too high temperature is possible to reach fuel gas and mixes
The burning-point of compound, such that fuel gas mixture will burn 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 cause to be burnt 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.
The content of the invention
The present invention is carried out to solve the above problems, it is therefore intended that a kind of radiating efficiency of offer is high, service life
It is long, pre-burning room housing can be allowed to carry out effective temperature-reducing, the water-jacket typ pre-burning device of radiating.
The invention provides a kind of water-jacket typ pre-burning device, it is fixedly installed in the inner chamber of the cylinder head of internal combustion engine, it is special
Levy and be, including：Precombustion chamber part, is fixedly installed in the lumen, including embedded pre-burning room housing and peace in the lumen vertically
Spark plug in pre-burning room housing；And precombustion chamber water jacket, it is enclosed within pre-burning room housing, the inwall of its outer wall and cylinder head
Between be provided with through hole, the through hole as intake tunnel, wherein, between the inwall of pre-burning room housing and precombustion chamber water jacket have ring
The gap of shape, the gap connects as the first cooling water channel with intake tunnel, and intake tunnel is via outside engine cycle pipe
Pass enters cooling water in the first cooling water channel, the cooling water ring around precombustion chamber housing fluid exchanged heat after flow out.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, wherein, precombustion chamber
Housing is cylindrical, including the precombustion chamber seat of honour that sets gradually from top to bottom and connected pre-chamber cavity housing, precombustion chamber
The inside of cavity shell is in back taper, and the bottom of pre-chamber cavity housing has hemispherical nozzle, is provided with least on the nozzle
One spray orifice.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, the number of spray orifice is
6~8, this 6~8 spray orifices are circumferentially evenly spaced on nozzle.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, in the precombustion chamber seat of honour
Multiple through holes are provided with, multiple through holes are connected as the second cooling water channel and the first cooling water channel.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, through hole has six
Individual, six through holes are circumferentially evenly spaced in the precombustion chamber seat of honour.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, precombustion chamber water jacket
First annular groove is provided with outer wall, the inner wall sealing of sealing shroud and cylinder head, pre-burning are arranged with the first annular groove
The second annular groove is provided with the outer wall at the room seat of honour, it is interior with precombustion chamber water jacket to be arranged with sealing shroud on second annular groove
Wall is sealed.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, pre-chamber cavity housing
Outer wall be fixedly installed radiating fin, the radiating fin be used for strengthen conduct heat.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, intake tunnel cut
Face is square, and width is 2~10mm, and the width of the first cooling water channel is 2~10mm, and the section of the second cooling water channel is circle,
Internal diameter is 1~10mm.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that：Wherein, the inwall of cylinder head
On be provided with slot block, through hole is arranged on the slot block.
In the water-jacket typ pre-burning device that the present invention is provided, can also have the feature that, also include：Precombustion chamber briquetting
Component, is arranged in cylinder head, for fixing precombustion chamber part, is provided with the annular water outlet connected with the second cooling water channel
Groove, the annular effluent trough be used for exchange heat after cooling water flow out of.
The effect of invention and effect
According to water-jacket typ pre-burning device involved in the present invention, because the pre-burning device has being enclosed within pre-burning room housing
Precombustion chamber water jacket, cooling water can be introduced and be entered intake tunnel by outside engine cycle pipeline, then be entered from intake tunnel
Enter to the first cooling water channel, cooling water ring around precombustion chamber housing fluid and pre-burning room housing exchanged heat after flow out, due to water
Specific heat capacity is larger, and maximum temperature after being warmed is 100 DEG C, can be shifted the heat of pre-burning room housing, so, the present invention
Water-jacket typ pre-burning device cooling water energy can not only be allowed to be flowed into from bottom after directly flowed out from top, it is to avoid flow blind angle,
Mobility is increased, and effective temperature-reducing, radiating can be carried out to pre-burning room housing, radiating efficiency is high, long service life.
Brief description of the drawings
Fig. 1 is total sectional structure chart of water-jacket typ pre-burning device and cylinder head in embodiments of the invention；
And
Fig. 2 is the cutaway view Amplified image in A-A directions in Fig. 1.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed water-jacket typ pre-burning device of the invention.
Fig. 1 is total sectional structure chart of water-jacket typ pre-burning device and cylinder head in embodiments of the invention.
As shown in figure 1, water-jacket typ pre-burning device 100 (is schemed with the engine cycle pipeline in water-jacket typ pre-burning ignition system
In be not drawn into) connection, water-jacket typ pre-burning device 100 is vertically embedded in the inner chamber of cylinder head 200 of internal combustion engine, and it includes pre-
Combustion room part 10, precombustion chamber water jacket 20 and precombustion chamber briquetting component 30.
Precombustion chamber part 10 includes pre-burning room housing 11 and spark plug 12.
Pre-burning room housing 11 is cylindrical, and it is vertically embedded in the inner chamber of cylinder head 200, as shown in figure 1, precombustion chamber
Housing 11 includes the precombustion chamber seat of honour 111 and the pre-chamber cavity housing 112 that are sequentially connected from top to bottom.In the present embodiment, pre-burning
The height of room housing 11 is 232mm.
Fig. 2 is the cutaway view Amplified image in A-A directions in Fig. 1.
As shown in Figure 1, 2, the inside at the precombustion chamber seat of honour 111 has the cavity of cylinder, and the cavity is used for accommodating spark plug
12, the circular through hole 111a that six internal diameters are 1~10mm, six are vertically provided with the side wall at the precombustion chamber seat of honour 111
Through hole 111a is circumferentially uniformly arranged on the side wall at the precombustion chamber seat of honour 111, and this six through hole 111a are cold as second
But water channel, additionally, setting fluted on the outer wall of the bottom of the precombustion chamber seat of honour 111, is arranged with sealing shroud 21 and precombustion chamber on groove
The inner wall sealing of cavity shell 112, in the present embodiment, the internal diameter of the second cooling water channel is 3mm.
Pre-chamber cavity housing 112 is in back taper, and its inside also has the cavity of back taper, pre- pre-chamber cavity housing 112
Inside connected by intercommunicating pore 112a with the inside at the precombustion chamber seat of honour 111, additionally, the outside weldings of pre-chamber cavity housing 112
There is spiral radiating fin (not shown).In the present embodiment, the external diameter of pre-chamber cavity housing 112 is 62mm.
There is hemispherical nozzle 113 on the bottom of pre-chamber cavity housing 112,6~8 are provided with nozzle 113 circular
Spray orifice 114, the aperture of spray orifice 114 be 5mm.In the present embodiment, spray orifice 114 has 6, and this 6 spray orifices 114 are circumferentially uniform to be arranged
Cloth is on nozzle 113.
Spark plug 12 is engaged with intercommunicating pore 112a, and its lower end is threadedly secured on intercommunicating pore 112a, and upper end is stretched
Enter in the cylindrical cavity in the precombustion chamber seat of honour 111.
Precombustion chamber water jacket 20 is enclosed within pre-burning room housing 11, and being provided between its outer wall and the inwall of cylinder head 200 can
With the slot block 22 for plugging, with the square through hole (not shown) that width is 2~10mm on slot block 22, the through hole is used as entering
Aquaporin, the cooling water in engine cycle pipeline enters from intake tunnel, and in the present embodiment, the width of intake tunnel is
4mm。
The inwall of precombustion chamber water jacket 20 and the outer wall of pre-chamber cavity housing 112 have width be 2~10mm it is annular between
Gap, the gap connects as the first cooling water channel, the first cooling water channel with intake tunnel, and the first cooling water channel is also with second
Cooling water channel is connected, and the first cooling water channel and the second cooling water channel connectivity part have in 90 degree of bending segment.Additionally, precombustion chamber water
The height of set 20 is 202mm, and in the present embodiment, the width of the first cooling water channel is 2mm.
There is first annular groove on the outer wall of precombustion chamber water jacket 20, sealing shroud 21 and cylinder are arranged with first annular groove
The inner wall sealing of lid 200, is provided with the second annular groove on the outer wall at the precombustion chamber seat of honour 111, be arranged on second annular groove
There is the inner wall sealing of sealing shroud 21 and precombustion chamber water jacket 20.
The bottom of precombustion chamber water jacket 20 has eight projection (not shown), and eight projections are used for allowing precombustion chamber water jacket
20 are embedded in cylinder head 200 vertically.
Precombustion chamber briquetting component 30 is fixed by screws in cylinder head 200, and it is used for fixing precombustion chamber part 10, such as schemes
Shown in 2, annular effluent trough 31 is provided with precombustion chamber briquetting component 30, annular effluent trough 31 is connected with the second cooling water channel, changed
During cooling water after heat flows into annular effluent trough 31 from the second cooling water channel, then the internal combustion engine being flowed into from annular effluent trough 31 is followed
In endless tube road.
The operation principle of water-jacket typ pre-burning device 100 of the invention is：
Short arrow represents cooling water water (flow) direction in Fig. 1, and the cooling water pumped into from engine cycle pipeline is by water inlet
Passage enters into the first cooling water channel, then enters the second cooling water channel by the first cooling water channel, and cooling water is in the first cooling water channel
With, around precombustion chamber housing 11, the high temperature in pre-burning room housing 11 is passed in cooling water in the second cooling water channel, so as to pre-burning
Room housing 11 is lowered the temperature, is radiated, and annular effluent trough 31 of the cooling water after heat transfer again from precombustion chamber briquetting 30 flows out, finally
Into in outside engine cycle pipeline.
The effect of embodiment and effect
Water-jacket typ pre-burning device according to involved by the present embodiment, because the pre-burning device has being enclosed within pre-burning room housing
Precombustion chamber water jacket, cooling water can introduce and be entered intake tunnel by outside engine cycle pipeline, then from intake tunnel
Enter into the first cooling water channel, cooling water ring around precombustion chamber housing fluid and pre-burning room housing exchanged heat after flow out, due to water
Specific heat capacity it is larger, and maximum temperature after being warmed is 100 DEG C, can be shifted the heat of pre-burning room housing, so, this reality
Directly flowed out from top after applying the water-jacket typ pre-burning device of example cooling water energy can not only being allowed to be flowed into from bottom, it is to avoid flowing is dead
Angle, increased mobility, and effective temperature-reducing, radiating can be carried out to pre-burning room housing, and radiating efficiency is high, long service life.
In the present embodiment, because the outer wall of pre-chamber cavity housing is provided with radiating fin, on the one hand, so that the face of contact
Product increase, so that the cooling water that the heat of high temperature on pre-chamber cavity housing can be passed to quickly in the first cooling water channel
In；On the other hand, radiating fin can strengthen the flowing of water, produce stronger sinuous flow, and heat transfer coefficient is bigger, and radiating effect is also more
It is good.Because such setting enables to pre-burning room housing preferably to radiate, internal combustion engine is prevented to be burned.
In the present embodiment, because the outer wall of precombustion chamber water jacket is provided with first annular groove, first annular groove is provided with
Sealing shroud and cylinder head are sealed so that precombustion chamber water jacket can intactly with cylinder head palette, prevent cooling water from leaking into
In cylinder head, prevent cylinder head, precombustion chamber water jacket from being corroded, increase the service life of precombustion chamber water jacket.
In the present embodiment, due to being provided with the slot block that can be plugged between cylinder head inwall and precombustion chamber water jacket,
When cooling water is introduced for a long time from engine cycle pipeline, the incrustation scale in cooling water can be remained in the through hole of slot block, cold
But 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 smoothly from
Intake tunnel enters, and cooling effectiveness is uprised.
Above-mentioned implementation method is preferred case of the invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. a kind of water-jacket typ pre-burning device, is fixedly installed in the inner chamber of the cylinder head of internal combustion engine, it is characterised in that including：
Precombustion chamber part, is fixedly installed in the inner chamber, including is embedded in pre-burning room housing and peace in the inner chamber vertically
Spark plug in the pre-burning room housing；And
Precombustion chamber water jacket, is enclosed within the pre-burning room housing, and through hole is provided between the inwall of its outer wall and the cylinder head, should
Through hole as intake tunnel,
Wherein, there is the gap of annular, the gap is used as the between the inwall of the pre-burning room housing and the precombustion chamber water jacket
One cooling water channel is connected with the intake tunnel,
The intake tunnel is introduced into cooling water in first cooling water channel via outside engine cycle pipeline, the cooling
Water ring around the precombustion chamber housing fluid exchanged heat after flow out.
2. water-jacket typ pre-burning device according to claim 1, it is characterised in that：
Wherein, the pre-burning room housing is cylindrical, including the precombustion chamber seat of honour that sets gradually from top to bottom and connected
Pre-chamber cavity housing,
The inside of the pre-chamber cavity housing is in back taper, and the bottom of the pre-chamber cavity housing has hemispherical nozzle,
At least one spray orifice is provided with the nozzle.
3. water-jacket typ pre-burning device according to claim 2, it is characterised in that：
Wherein, the number of the spray orifice is 6~8, and this 6~8 described spray orifices are circumferentially evenly spaced on the nozzle.
4. water-jacket typ pre-burning device according to claim 2, it is characterised in that：
Wherein, multiple through holes are vertically provided with the precombustion chamber seat of honour, multiple through holes are used as the second cooling water
Road is connected with first cooling water channel.
5. water-jacket typ pre-burning device according to claim 4, it is characterised in that：
Wherein, the through hole has six, and six through holes are circumferentially evenly spaced in the precombustion chamber seat of honour.
6. water-jacket typ pre-burning device according to claim 2, it is characterised in that：
Wherein, first annular groove is provided with the outer wall of the precombustion chamber water jacket, sealing is arranged with the first annular groove
The inner wall sealing with the cylinder head is covered,
The second annular groove is provided with the outer wall at the precombustion chamber seat of honour, sealing shroud and institute are arranged with second annular groove
State the inner wall sealing of precombustion chamber water jacket.
7. water-jacket typ pre-burning device according to claim 2, it is characterised in that：
Wherein, the outer wall of the pre-chamber cavity housing is fixedly installed radiating fin, and the radiating fin is used to strengthen heat transfer.
8. water-jacket typ pre-burning device according to claim 4, it is characterised in that：
Wherein, the section of the intake tunnel is square, and width is 2~10mm,
The width of first cooling water channel is 2~10mm,
The section of second cooling water channel is circle, and internal diameter is 1~10mm.
9. water-jacket typ pre-burning device according to claim 1, it is characterised in that：
Wherein, slot block is provided with the inwall of the cylinder head, the through hole is arranged on the slot block.
10. water-jacket typ pre-burning device according to claim 4, it is characterised in that also include：
Precombustion chamber briquetting component, is arranged in the cylinder head, for fixing the precombustion chamber part, be provided with it is described
Second cooling water channel connection annular effluent trough, the annular effluent trough be used for exchange heat after cooling water flow out of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057959.2A CN106884706B (en) | 2017-01-23 | 2017-01-23 | Water jacket type pre-burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057959.2A CN106884706B (en) | 2017-01-23 | 2017-01-23 | Water jacket type pre-burning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884706A true CN106884706A (en) | 2017-06-23 |
| CN106884706B CN106884706B (en) | 2019-12-10 |
Family
ID=59176091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057959.2A Active CN106884706B (en) | 2017-01-23 | 2017-01-23 | Water jacket type pre-burning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884706B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828216A (en) * | 2020-06-28 | 2020-10-27 | 上海中船三井造船柴油机有限公司 | Cooling structure of fuel injector precombustion chamber of dual-fuel diesel engine |
| CN114856797A (en) * | 2021-02-05 | 2022-08-05 | 广州汽车集团股份有限公司 | Engine combustion chamber structure and engine |
| CN115324716A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Pre-combustion chamber |
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| US20110271930A1 (en) * | 2008-12-26 | 2011-11-10 | Mitsubishi Heavy Industries, Ltd. | Gas engine with spark plug and bore-cooling holes |
| 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 |
| DE102014219144A1 (en) * | 2014-09-23 | 2016-03-24 | Robert Bosch Gmbh | Laser spark plug for an internal combustion engine |
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2017
- 2017-01-23 CN CN201710057959.2A patent/CN106884706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110271930A1 (en) * | 2008-12-26 | 2011-11-10 | Mitsubishi Heavy Industries, Ltd. | Gas engine with spark plug and bore-cooling holes |
| 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 |
| CN103821606A (en) * | 2014-03-03 | 2014-05-28 | 潍柴西港新能源动力有限公司 | Pre-combustion generator |
| DE102014219144A1 (en) * | 2014-09-23 | 2016-03-24 | Robert Bosch Gmbh | Laser spark plug for an internal combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828216A (en) * | 2020-06-28 | 2020-10-27 | 上海中船三井造船柴油机有限公司 | Cooling structure of fuel injector precombustion chamber of dual-fuel diesel engine |
| CN114856797A (en) * | 2021-02-05 | 2022-08-05 | 广州汽车集团股份有限公司 | Engine combustion chamber structure and engine |
| CN114856797B (en) * | 2021-02-05 | 2023-09-29 | 广州汽车集团股份有限公司 | Engine combustion chamber structure and engine |
| CN115324716A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Pre-combustion chamber |
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| Publication number | Publication date |
|---|---|
| CN106884706B (en) | 2019-12-10 |
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