CN108035818A - The cylinder head of pre-chamber spark plug - Google Patents
The cylinder head of pre-chamber spark plug Download PDFInfo
- Publication number
- CN108035818A CN108035818A CN201711147653.2A CN201711147653A CN108035818A CN 108035818 A CN108035818 A CN 108035818A CN 201711147653 A CN201711147653 A CN 201711147653A CN 108035818 A CN108035818 A CN 108035818A
- Authority
- CN
- China
- Prior art keywords
- spark plug
- water
- water cavity
- cap body
- hole
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- 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)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention belongs to technical field of engines, it is related to a kind of cylinder head of pre-chamber spark plug, including cylinder cap body, is distributed air intake duct, exhaust duct in cylinder cap body, spark plug sleeve is set in the mounting hole of cylinder cap body, and the bottom surface that spark plug sleeve is corresponded on cylinder cap body sets precombustion chamber；Cooling water cavity is formed in cylinder cap body, cooling water cavity is divided into upper water cavity and lower water cavity by partition plate, precombustion chamber is stretched into lower water cavity, spark plug is put on equipped with the 5th water hole, cylinder cap body is equipped with the 6th water hole of connection upper water cavity, 5th water hole upper end connects the 6th water hole, the lower water cavity of the 5th water hole lower end connection.The cylinder head optimizes the flow field of cylinder head water channel, used the structure of pre-chamber spark plug, add spark plug, precombustion chamber cooling water passage, solve the problems, such as cylinder head spark plug cooling it is insufficient, to improve the service life of spark plug, the use cost of engine is reduced.
Description
Technical field
The invention belongs to technical field of engines, is related to a kind of cylinder head of pre-chamber spark plug.
Background technology
Existing gas engine uses spark ignitor, and spark plug installation is close to cylinder head bottom surface, in gas engine work
It is subject to high temperature and pressure in work, bigger thermic load is generated to spark plug, traditional cylinder head cooling water channel cannot be effective
The thermic load around spark plug is reduced, causes the reduction of spark plug service life, increases the use cost of gas engine.
The content of the invention
For the present invention in view of the above-mentioned problems, providing a kind of cylinder head of pre-chamber spark plug, which optimizes cylinder head
The flow field of water channel, has used the structure of pre-chamber spark plug, add spark plug, precombustion chamber cooling water passage, solve
The problem of cooling of cylinder head spark plug is insufficient, to improve the service life of spark plug, reduces the use cost of engine.
Technical solution according to the invention：A kind of cylinder head of pre-chamber spark plug, including cylinder cap body, in cylinder cap body
It is distributed air intake duct, exhaust duct, it is characterised in that：Spark plug sleeve is set in the mounting hole of cylinder cap body, is corresponded on cylinder cap body
The bottom surface of spark plug sleeve sets precombustion chamber；Cooling water cavity is formed in cylinder cap body, cooling water cavity is divided into upper water cavity with by partition plate
Water cavity, precombustion chamber are stretched into lower water cavity, and spark plug is put on equipped with the 5th water hole, and cylinder cap body is equipped with the 6th of connection upper water cavity
Water hole, the 5th water hole upper end connect the 6th water hole, the lower water cavity of the 5th water hole lower end connection, and partition plate is equipped with connection upper water cavity with
First water hole of water cavity；Cylinder cap body bottom surface is equipped with the inlet opening of the lower water cavity of several connections, and cylinder cap bodies top is equipped with connection
The water outlet of upper water cavity.
As a further improvement on the present invention, the first spark plug sleeve is set between the spark plug sleeve lower end and cylinder cap body
Sealing ring, is additionally provided with the second spark plug sealing ring and the 3rd spark plug sealing ring between spark plug sleeve and cylinder cap body, and second
Spark plug sealing ring, the 3rd spark plug sealing ring are placed in the both sides of the 5th water hole and the 6th water hole connectivity part.
As a further improvement on the present invention, precombustion chamber sealing ring, pre-burning are equipped between the precombustion chamber and spark plug sleeve
Precombustion chamber gasket is set between room lower end step surface and cylinder cap body.
As a further improvement on the present invention, the spark plug sleeve is fixed on cylinder cap body by briquetting, bolt.
As a further improvement on the present invention, the inlet opening includes the first inlet opening, the second inlet opening, the 3rd water inlet
Hole, the 4th inlet opening, the 5th inlet opening, the 6th inlet opening, wherein the first inlet opening, the second inlet opening are arranged under exhaust duct
Side, the 3rd inlet opening, the 4th inlet opening are arranged on cylinder cap body close to two two side positions of exhaust valve, the 5th inlet opening, the
Six inlet openings are arranged on the downside of air intake duct.
As a further improvement on the present invention, set on the air intake duct partition plate being connected in lower water cavity with exhaust duct the first hole,
Second hole.
As a further improvement on the present invention, the second water is set between the lower water cavity and upper water cavity of cylinder cap body air exit
Hole, the 3rd water hole.
As a further improvement on the present invention, water hole, second also are connected by first between the lower water cavity and upper water cavity
Connection water hole is connected.
As a further improvement on the present invention, the lower water cavity is provided with the first water hole, the 4th water on the outside of inlet valve port
Hole.
The technical effects of the invention are that：For the present invention by designing layering water cavity in Water Cavity of Cylinder Head, cylinder cap bottom 6 is fixed
The design of point inlet opening, the connection water hole of lower floor's water cavity and upper strata water cavity are designed, spark plug jacket water hole connection lower floor's water cavity with
The design of upper strata water cavity, precombustion chamber and the mounting design of spark plug sleeve, make cylinder cap lower floor water cavity cooling water cool down as far as possible it is pre-
The outer surface of room is fired, covering upper water hole by spark plug flows to upper strata water cavity, sufficiently cool spark plug head high-temperature area, optimization
The flow field of cylinder cap water channel, solves the problems, such as that the cooling of cylinder head spark plug is insufficient, to improve the service life of spark plug, drop
The low use cost of engine.
Brief description of the drawings
Fig. 1 is the cylinder head planing surface structure diagram of the present invention.
Fig. 2 is the cylinder cover base water cavity top view of the present invention.
Fig. 3 is the cylinder cover top water cavity top view of the present invention.
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
In Fig. 1 ~ 3, including exhaust duct 1, air intake duct 2, lower water cavity 3, partition plate 4, precombustion chamber gasket 5, precombustion chamber 6, precombustion chamber
Sealing ring 7, the first spark plug sleeve sealing ring 8, the first water hole 9, the 5th water hole 10, the 6th water hole 11, the fire of spark plug sleeve 12, second
Flower plug sleeve sealing ring 13, briquetting 14, spark plug 15, bolt 16, upper water cavity 17, water outlet 18, the 3rd spark plug sleeve sealing ring 19,
First inlet opening 20, the second inlet opening 21, the 3rd inlet opening 22, the 4th inlet opening 23, the 5th inlet opening 24, the 6th inlet opening
25th, the second water hole 26, the 3rd water hole 27, the first hole 28, the second hole 29, first connection water hole 30, second connect water hole the 31, the 4th
Water hole 32 etc..
As shown in Fig. 1 ~ 3, the present invention is a kind of cylinder head of pre-chamber spark plug, including cylinder cap body, in cylinder cap body
Air intake duct 2, exhaust duct 1 are distributed, spark plug sleeve 12 is set in the mounting hole of cylinder cap body, corresponds to spark plug sleeve on cylinder cap body
12 bottom surface sets precombustion chamber 6；Cooling water cavity is formed in cylinder cap body, cooling water cavity is divided into upper water cavity 17 and lower water by partition plate 4
Chamber 3, precombustion chamber 6 are stretched into lower water cavity 3, and spark plug sleeve 12 is equipped with the 5th water hole 10, and cylinder cap body is equipped with connection upper water cavity
17 the 6th water hole 11,10 upper end of the 5th water hole connect the 6th water hole 11, the lower water cavity 3 of 10 lower end of the 5th water hole connection, on partition plate 4
The first water hole 9 equipped with connection upper water cavity 17 with lower water cavity 3；Cylinder cap body bottom surface is equipped with the water inlet of the lower water cavity 3 of several connections
Hole, cylinder cap bodies top are equipped with the water outlet 18 of connection upper water cavity 17.
First spark plug sleeve sealing ring 8, spark plug sleeve 12 and cylinder cap are set between 12 lower end of spark plug sleeve and cylinder cap body
The second spark plug sealing ring 13 and the 3rd spark plug sealing ring 19, the second spark plug sealing ring 13, are additionally provided between body
Three spark plug sealing rings 19 are placed in the 5th water hole 10 and the both sides of 11 connectivity part of the 6th water hole.
Precombustion chamber sealing ring 7,6 lower end step surface of precombustion chamber and cylinder cap body are equipped between precombustion chamber 6 and spark plug sleeve 12
Between precombustion chamber gasket 5 is set.
Spark plug sleeve 12 is fixed on cylinder cap body by briquetting 14, bolt 16.
Inlet opening include the first inlet opening 20, the second inlet opening 21, the 3rd inlet opening 22, the 4th inlet opening the 23, the 5th into
Water hole 24, the 6th inlet opening 25, wherein the first inlet opening 20, the second inlet opening 21 are arranged at the downside of exhaust duct 1, the 3rd inlet opening
22nd, the 4th inlet opening 23 is arranged on cylinder cap body close to two two side positions of exhaust valve, the 5th inlet opening 24, the 6th inlet opening
25 are arranged at the downside of air intake duct 2.
First hole 28, the second hole 29 are set on the air intake duct partition plate being connected in lower water cavity 3 with exhaust duct.
Second water hole 26, the 3rd water hole 27 are set between the lower water cavity 3 and upper water cavity 17 of cylinder cap body air exit.
Also water hole 31 is connected between lower water cavity 3 and upper water cavity 17 by the first connection water hole 30, second to be connected.
Lower water cavity 3 is provided with the first water hole 9, the 4th water hole 32 on the outside of inlet valve port.
The course of work of the present invention is as follows：Cylinder head cooling water enters water cavity 3 under cylinder cap from 6 inlet openings respectively, first into
The cooling water that water hole 20, the second inlet opening 21 flow into by around exhaust duct, cylinder cap ridge area flow into the first connection water hole 30, the
Two connection water holes 31 flow into upper water cavity 17, have part cooling water to flow into upper water cavity 17 through the second water hole 26, the 3rd water hole 27；3rd
The cooling water that inlet opening 22, the 4th inlet opening 23 flow into passes through around exhaust duct, cylinder cap ridge area flows into the first connection water hole 30,
Second connection water hole 31, then flows into upper water cavity 17；The cooling water that 5th inlet opening 24, the 6th inlet opening 25 flow into passes through air inlet
Around road, cylinder cap ridge area flow into the first connection water hole 30, second connection water hole 31 and flow into upper water cavity 17, have part cooling water warp
The 4th inlet opening 23, the 5th inlet opening 24 the first hole 28 of inflow, the second hole 29 inflow upper water cavity 17 are crossed, has part cooling water to pass through
First water hole 9, the 4th water hole 32 flow into upper water cavity 17.Flow through 6 outer surface of cooling water cooling precombustion chamber of cylinder cap ridge area, part
Cooling water flows into upper water cavity 17 by the 5th water hole 10 on spark plug sleeve 12, and cooling water converges through cooling water outlet in upper water cavity 17
18 outflow Water Cavity of Cylinder Head.
The design of this layering water cavity and pre-chamber spark plug structure, makes cylinder head cooling water be cooled down as far as possible in cylinder cap
Cylinder cap bottom, and the cooling water for the lower floor's water cavity that converges passes through bridge of the nose high-temperature area, makes the cooling water of cylinder cap lower floor water cavity as far as possible
Cooling precombustion chamber outer surface, upper water hole is covered by spark plug and flows to upper strata water cavity, sufficiently cool spark plug head high temperature
Region, optimizes the flow field of cylinder cap water channel, solves the problems, such as that the cooling of cylinder head spark plug is insufficient, to improve making for spark plug
With the service life, the use cost of engine is reduced.
Claims (9)
1. a kind of cylinder head of pre-chamber spark plug, including cylinder cap body, the interior distribution air intake duct of cylinder cap body（2）, exhaust duct
（1）, it is characterised in that：Spark plug sleeve is set in the mounting hole of cylinder cap body（12）, correspond to spark plug sleeve on cylinder cap body
（12）Bottom surface set precombustion chamber（6）；Cooling water cavity, partition plate are formed in cylinder cap body（4）Cooling water cavity is divided into upper water cavity
（17）With lower water cavity（3）, precombustion chamber（6）Stretch into lower water cavity（3）In, spark plug sleeve（12）It is equipped with the 5th water hole（10）, cylinder cap
Body is equipped with connection upper water cavity（17）The 6th water hole（11）, the 5th water hole（10）Upper end connects the 6th water hole（11）, the 5th
Water hole（10）The lower water cavity of lower end connection（3）, partition plate（4）It is equipped with connection upper water cavity（17）With lower water cavity（3）The first water hole
（9）；Cylinder cap body bottom surface is equipped with the lower water cavity of several connections（3）Inlet opening, cylinder cap bodies top be equipped with connection upper water cavity
（17）Water outlet（18）.
2. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The spark plug sleeve（12）Lower end with
First spark plug sleeve sealing ring is set between cylinder cap body（8）, spark plug sleeve（12）Second is additionally provided between cylinder cap body
Spark plug sealing ring（13）With the 3rd spark plug sealing ring（19）, the second spark plug sealing ring（13）, the 3rd spark plug sealing ring
（19）Be placed in the 5th water hole（10）With the 6th water hole（11）The both sides of connectivity part.
3. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The precombustion chamber（6）With spark plug
Set（12）Between be equipped with precombustion chamber sealing ring（7）, precombustion chamber（6）Precombustion chamber gasket is set between lower end step surface and cylinder cap body
（5）.
4. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The spark plug sleeve（12）Pass through pressure
Block（14）, bolt（16）It is fixed on cylinder cap body.
5. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The inlet opening includes the first water inlet
Hole（20）, the second inlet opening（21）, the 3rd inlet opening（22）, the 4th inlet opening（23）, the 5th inlet opening（24）, the 6th inlet opening
（25）, wherein the first inlet opening（20）, the second inlet opening（21）It is arranged at exhaust duct（1）Downside, the 3rd inlet opening（22）, the 4th
Inlet opening（23）It is arranged on cylinder cap body close to two two side positions of exhaust valve, the 5th inlet opening（24）, the 6th inlet opening
（25）It is arranged at air intake duct（2）Downside.
6. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：Lower water cavity（3）In with exhaust duct phase
The first hole is set on air intake duct partition plate even（28）, the second hole（29）.
7. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The lower water of cylinder cap body air exit
Chamber（3）With upper water cavity（17）Between the second water hole is set（26）, the 3rd water hole（27）.
8. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The lower water cavity（3）With upper water cavity
（17）Between also pass through first connection water hole（30）, second connection water hole（31）It is connected.
9. the cylinder head of pre-chamber spark plug as claimed in claim 1, it is characterised in that：The lower water cavity（3）In inlet valve
The first water hole is provided with the outside of hole（9）, the 4th water hole（32）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147653.2A CN108035818B (en) | 2017-11-17 | 2017-11-17 | Cylinder head for a prechamber spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147653.2A CN108035818B (en) | 2017-11-17 | 2017-11-17 | Cylinder head for a prechamber spark plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108035818A true CN108035818A (en) | 2018-05-15 |
| CN108035818B CN108035818B (en) | 2021-02-05 |
Family
ID=62092789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711147653.2A Active CN108035818B (en) | 2017-11-17 | 2017-11-17 | Cylinder head for a prechamber spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035818B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854403A (en) * | 2018-12-21 | 2019-06-07 | 潍柴动力股份有限公司 | Cylinder head and engine with it |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
| CN112502847A (en) * | 2020-11-27 | 2021-03-16 | 潍柴动力股份有限公司 | Engine cylinder cover and natural gas engine |
| CN113969825A (en) * | 2020-07-23 | 2022-01-25 | 广州汽车集团股份有限公司 | Split type precombustion chamber |
| CN115013141A (en) * | 2022-06-15 | 2022-09-06 | 一汽解放汽车有限公司 | Pre-combustion chamber structure and gas internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436066A (en) * | 1979-05-23 | 1984-03-13 | Fiat Veicoli Industriali S.P.A. | Cylinder head for compression-ignition internal combustion engine |
| CN201496140U (en) * | 2009-06-25 | 2010-06-02 | 南车资阳机车有限公司 | Active differential-type pre-combustion system |
| 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 |
| CN106870117A (en) * | 2017-01-23 | 2017-06-20 | 江苏盛源燃气动力机械有限公司 | Water-cooled pre-burning device |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
-
2017
- 2017-11-17 CN CN201711147653.2A patent/CN108035818B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436066A (en) * | 1979-05-23 | 1984-03-13 | Fiat Veicoli Industriali S.P.A. | Cylinder head for compression-ignition internal combustion engine |
| CN201496140U (en) * | 2009-06-25 | 2010-06-02 | 南车资阳机车有限公司 | Active differential-type pre-combustion system |
| 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 |
| CN106870117A (en) * | 2017-01-23 | 2017-06-20 | 江苏盛源燃气动力机械有限公司 | Water-cooled pre-burning device |
| CN107061045A (en) * | 2017-01-25 | 2017-08-18 | 无锡开普机械有限公司 | The sealing structure of spark plug |
Non-Patent Citations (2)
| Title |
|---|
| 吉林省建筑工程学校和张家口建筑工程学校: "《中等专业学校适用教材 内燃机与汽车底盘》", 31 December 1980 * |
| 陈国储等: "《小型柴油机使用维修技术》", 31 December 1997 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854403A (en) * | 2018-12-21 | 2019-06-07 | 潍柴动力股份有限公司 | Cylinder head and engine with it |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
| CN113969825A (en) * | 2020-07-23 | 2022-01-25 | 广州汽车集团股份有限公司 | Split type precombustion chamber |
| CN112502847A (en) * | 2020-11-27 | 2021-03-16 | 潍柴动力股份有限公司 | Engine cylinder cover and natural gas engine |
| CN115013141A (en) * | 2022-06-15 | 2022-09-06 | 一汽解放汽车有限公司 | Pre-combustion chamber structure and gas internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108035818B (en) | 2021-02-05 |
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