CN106762193B - High-efficient refrigerated four-valve engine cylinder head - Google Patents
High-efficient refrigerated four-valve engine cylinder head Download PDFInfo
- Publication number
- CN106762193B CN106762193B CN201611193116.7A CN201611193116A CN106762193B CN 106762193 B CN106762193 B CN 106762193B CN 201611193116 A CN201611193116 A CN 201611193116A CN 106762193 B CN106762193 B CN 106762193B
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- Prior art keywords
- water jacket
- water
- lower water
- cylinder head
- jacket
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 183
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 239000000446 fuel Substances 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 206010022000 influenza Diseases 0.000 claims description 14
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005192 partition Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
Landscapes
- 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)
Abstract
A high-efficiency cooled four-valve engine cylinder cover comprises a body, wherein an oil injector mounting hole position is formed in the center of the body, which is internally provided with an upper water jacket and a lower water jacket, an oil injector sleeve is arranged in the oil injector mounting hole position, the oil injector sleeve vertically penetrates through the centers of the upper water jacket and the lower water jacket, four air passages are arranged in the body around the oil injector mounting hole position, the upper water jacket, the lower water jacket and the four air passages are in a completely isolated state, the lower water jacket is communicated with a cooling water inlet pipe through water inlet holes positioned on the outer sides of the four air passages, the upper water jacket is communicated with a cooling water outlet pipe through water outlet holes, and the upper water jacket is communicated with; and a middle water baffle is arranged in the lower water jacket between the oil sprayer sleeve and the outer wall of a certain air passage close to the water inlet hole. The cylinder cover of the invention connects each thermal key area of the lower water jacket in series, and has the advantages of high water flow utilization rate, good cooling effect and good use effect.
Description
Technical field
The present invention relates to a kind of efficiently cooling four-valve engine cylinder head, belong to engine component technical field.
Background technique
Medium or severe type diesel engine is faced with serious cylinder head thermal fatigue failure problem.How cylinder head anti-is improved
Thermal fatigue property has become the main points of current Medium or severe type diesel engine machine Cylinder head design.
Chinese invention patent (Authorization Notice No.: 101413459 B of CN, authorized announcement date: on September 1st, 2010, title:
High strength cylinder cap with double-layer water stream channel) a kind of engine cylinder cap is disclosed, the cylinder head is in upper plate and bottom
It is equipped with mounting hole of oil sprayer position between plate, several air flues are offered around mounting hole of oil sprayer position in cylinder head, in lower plate
On offer inlet opening, apopore is offered on upper plate, offers cooling water cavity, upper plate around air flue in cylinder head
Cooling cavities between lower plate is divided into independent upper water cavity and lower water cavity, the edge of middle partition and cooling by middle partition
The side wall integrally connected of water cavity is provided on the middle partition between mounting hole of oil sprayer position and air flue and is connected to upper water cavity and lower water cavity
Intercommunicating pore.
The cylinder head, can be to a certain extent by the reasonable Arrangement of hierarchical design and upper and lower cavity lead to the hole site to cooling chamber
The thermal stress for promoting cooling effect, reducing cylinder cap lower plate and air flue.But the cylinder head of the structure can not have cooling water
The water stream channel of the guidance of effect, each hot key area is parallel port, and all cooling waters into cylinder head are each flowing through it
After phase near-thermal key area, it is just directly pooled to central region, intercommunicating pore enters upper water cavity from middle part, and there are water flow benefits for the design
With the defect that rate is low, whole cooling effect is poor, using effect is not good enough.
Summary of the invention
The purpose of the present invention is being directed to the drawbacks described above of available engine cylinder head, a kind of efficiently cooling Four valve is provided
Engine cylinder cap, the cylinder head have the advantages that water flow utilization rate height, good cooling results, using effect are good.
To achieve the above object, the technical solution of the invention is as follows:
A kind of efficiently cooling four-valve engine cylinder head, including ontology, is set inside the body upper water sleeve and is lauched
Set, the center of ontology offers mounting hole of oil sprayer position, fuel injector casing, fuel injector casing is disposed in mounting hole of oil sprayer position
The vertical center for running through upper water sleeve and lower water jacket is set there are four air flue around mounting hole of oil sprayer position in ontology, upper water sleeve and under
In the state completely cut off completely between water jacket and four air flues, lower water jacket is by being located at inlet opening and cooling on the outside of four air flues
Water inlet pipe is connected, and upper water sleeve is connected by apopore and cooling water outlet tube, and upper water sleeve and lower water jacket are by being located at body central
Water stream channel is connected；In lower water jacket, middle part is provided between the outer wall of a certain air flue of fuel injector casing and close inlet opening
Water fender.
Preferably, two edges of middle part water fender in the horizontal direction respectively adjacent with above-mentioned specified air flue other two
The outer wall of a air flue is connected, and above-mentioned specified air flue refers between its outer wall and fuel injector casing that of water fender in the middle part of setting
A air flue.
Preferably, middle part water fender runs through entire lower water jacket in the height direction.
Preferably, and in the lower water jacket that middle part water fender is connected and the outer wall of the air flue closer to inlet opening is adjacent thereto
Peripheral water fender is equipped between wall.
Preferably, peripheral water fender originates from the bottom surface of lower water jacket, highly 1/2~1 for lower water jacket height.
Preferably, water retaining ribs are equipped between the outer wall of above-mentioned specified air flue lower water jacket inner wall adjacent thereto.
Preferably, water retaining ribs originate from the bottom surface of lower water jacket, are equal to or less than the 1/2 of lower water jacket height in height.
Preferably, upper water sleeve and lower water jacket are connected by the water stream channel between fuel injector casing and middle part water fender
It is logical.
Preferably, in four air flues, two air flues close to inlet opening are air intake duct, and two air flues far from inlet opening are outlet
Road.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention the middle part of lower water jacket be provided with middle part water fender, middle part water fender can first by from peripheral inlet opening into
Enter at cooling water guiding other peripheral region of lower water jacket and the two of them air flue bridge of the nose of cylinder head, then again through other two
Air flue ridge area focuses on central region, enters upper water sleeve finally by the water stream channel for being set to middle part；It is designed in this way, realizes
The series connection of cylinder head lower water jacket hot key area is cooling, and the cooling capacity and whole water flow of hot key area greatly improved
Utilization rate reduces water flow tissue to the sensibility of cylinder head casting deviation, and then effectively reduces the operating temperature of cylinder head,
Improve the thermal fatigue resistance of cylinder head.
2. the present invention is also provided with peripheral water fender and water retaining ribs in lower water jacket periphery, pass through the cooperation with middle part water fender
With the arrangement of height, it is more to force in the allocation proportion in each regional flow channel which can effectively control cooling water
Cooling water can effectively extend the flow distance of cooling water entirety sequentially through the hot key area in lower water jacket；The design
The flow of each hot key area cooling water of lower water jacket is further improved, to further increase whole water flow utilization rate, is promoted
Water velocity reduces the operating temperature of cylinder head, improves the thermal fatigue resistance of cylinder head.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is B-B sectional view in Fig. 1；
In figure: upper water sleeve 1, lower water jacket 2, mounting hole of oil sprayer position 3, fuel injector casing 4, exhaust duct 5, exhaust duct 6, air inlet
Road 7, air intake duct 8, cylinder bolt hole 9, inlet opening 10, middle part water fender 11, water stream channel 12, water retaining ribs 13, peripheral water fender
14。
Specific embodiment
The present invention is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1 to Fig. 3, a kind of efficiently cooling four-valve engine cylinder head, including ontology is set inside the body
Upper water sleeve 1 and lower water jacket 2, the center of ontology offer mounting hole of oil sprayer position 3, dispose oil spout in mounting hole of oil sprayer position 3
Device casing 4, fuel injector casing 4 vertically run through the center of upper water sleeve 1 and lower water jacket 2, set in ontology around mounting hole of oil sprayer position 3
There are four, in the state completely cut off completely, lower water jacket 2 is by being located at four between air flue, upper water sleeve 1 and lower water jacket 2 and four air flues
Inlet opening 10 and cooling water inlet pipe on the outside of a air flue are connected, and upper water sleeve 1 is connected by apopore and cooling water outlet tube, upper water sleeve
1 is connected with lower water jacket 2 by being located at the water stream channel of body central；In lower water jacket 2, fuel injector casing 4 and close inlet opening
Middle part water fender 11 is provided between the outer wall of 10 a certain air flue.
As a preferred technical solution, middle part two edges in the horizontal direction of water fender 11 respectively with above-mentioned specified gas
The outer wall of other two adjacent air flue of road is connected, and above-mentioned specified air flue refers to be arranged between its outer wall and fuel injector casing 4
That air flue of middle part water fender 11.
Middle part water fender 11 runs through entire lower water jacket 2 in the height direction as a preferred technical solution,.
Be connected as a preferred technical solution, with middle part water fender 11 and closer to the outer wall of the air flue of inlet opening 10 with
Peripheral water fender 14 is equipped between its adjacent 2 inner wall of lower water jacket.
Peripheral water fender 14 originates from the bottom surface of lower water jacket 2 as a preferred technical solution, is highly 2 height of lower water jacket
1/2~1.
Water blocking is equipped between the outer wall of above-mentioned specified air flue 2 inner wall of lower water jacket adjacent thereto as a preferred technical solution,
Muscle 13.
Water retaining ribs 13 originate from the bottom surface of lower water jacket 2 as a preferred technical solution, are equal to or less than be lauched in height
Cover the 1/2 of 2 height.
Upper water sleeve 1 and lower water jacket 2 are by being located at fuel injector casing 4 and middle part water fender 11 as a preferred technical solution,
Between water stream channel 12 be connected to.
As a preferred technical solution, in four air flues, two air flues close to inlet opening 10 are air intake duct, far from inlet opening
10 two air flues are gas off-take.
Embodiment 1:
Referring to Fig. 1 and Fig. 3, the four-valve engine cylinder head efficiently cooled down, including cylinder head ontology, body interior are opened up
There are upper water sleeve 1 and lower water jacket 2, cylinder head is provided centrally with mounting hole of oil sprayer position 3, is mounted in mounting hole of oil sprayer position 3
Fuel injector casing 4, fuel injector casing 4 vertically run through the center of upper water sleeve 1 and lower water jacket 2, arrange around mounting hole of oil sprayer position 3
There are exhaust duct 5, exhaust duct 6 and air intake duct 7, air intake duct 8, the peripheral sidewall of cylinder head arranges several bolts hole 9.Lower water jacket
2 bottoms are disposed with inlet opening 10 in air inlet side.Upper water sleeve 1 passes through 12 phase of water stream channel around fuel injector casing 4 with lower water jacket 2
Connection.
Region is disposed with middle part water fender 11 near fuel injector casing 4 in lower water jacket 2, and middle part water fender 11 is located at oil spout
Between 4 outer wall of device casing and the outer wall of air intake duct 7, the both sides of middle part water fender 11 in the horizontal direction respectively with exhaust duct 5
Outer wall is connected with the outer wall of air intake duct 8, and middle part water fender 11 runs through entire lower water jacket 2 in the height direction.
The design of middle part water fender 11 is by the water between the water stream channel of lower water jacket peripheral region, air intake duct 7 and air intake duct 8
The water stream channel of 3 near zone of circulation road and mounting hole of oil sprayer position is together in series, to be forced into the cooling water of lower water jacket 2
Sequentially flow through the peripheral region of air inlet side, two air intake duct ridge areas, the peripheral region at the water fender of middle part, the external zones for going out gas side
Domain, the interior of middle part water fender enclose region, enter cylinder head upper water sleeve 1 finally by the water stream channel 12 around fuel injector casing 4.
The series connection for realizing the hot key area of cylinder head lower water jacket is cooling, and the cooling capacity and entirety of hot key area greatly improved
Water flow utilization rate.
The peripheral region of lower water jacket 2 is disposed with water retaining ribs 13, and water retaining ribs 13 are located at the outer wall and neighbouring bolt hole of air intake duct 7
Between 9 outer wall.Water retaining ribs 13 originate from cylinder head bottom plate, are no more than the half of 2 height of lower water jacket in the height direction.It is lauched
The peripheral region of set 2 is disposed with peripheral water fender 14, and peripheral water fender 14 is located at the outer wall and neighbouring bolt hole 9 of air intake duct 8
Between outer wall, peripheral water fender 14 runs through entire lower water jacket 2 in the height direction.
The design of water retaining ribs 13 and peripheral water fender 14 can be further increased by diversion mode by air intake duct 7 with into
Between air flue 8 between the cooling water flow and air intake duct 7 and exhaust duct 5 of ridge area ridge area cooling water flow, thus into one
Step improves whole water flow utilization rate, reduces the operating temperature of cylinder head, improves the thermal fatigue resistance of cylinder head.
The above content is the further descriptions for combining specific embodiment to be the present invention, must not believe that the present invention
Specific implementation be only limited to these instructions, for those of ordinary skill in the art to which the present invention belongs, do not departing from
Under the premise of present inventive concept, the simple replacement made all shall be regarded as belonging to protection scope of the present invention.
Claims (6)
1. a kind of efficiently cooling four-valve engine cylinder head, including ontology, it is described be set inside the body upper water sleeve (1) and
Lower water jacket (2), the center of the ontology offer mounting hole of oil sprayer position (3), placement in the mounting hole of oil sprayer position (3)
Fuel injector casing (4), the fuel injector casing (4) vertically run through upper water sleeve (1) and lower water jacket (2) center, the ontology
Interior to set around mounting hole of oil sprayer position (3) there are four air flue, the lateral inner wall of the side walls of four air flues and lower water jacket (2) is not
Contact, in the state completely cut off completely, the lower water jacket (2) between the upper water sleeve (1) and lower water jacket (2) and four air flues
By being located at inlet opening (10) and the connection of cooling water inlet pipe on the outside of air flue, the upper water sleeve (1) and cooling water outlet tube are connected, institute
The upper water sleeve (1) stated and lower water jacket (2) are connected by being located at the water stream channel of body central；It is characterized by: in lower water jacket (2)
It is interior, middle part water fender (11) is provided between the outer wall of a certain air flue of the fuel injector casing (4) and close inlet opening (10),
Two edges of the middle part water fender (11) in the horizontal direction other two air flue adjacent with specified air flue respectively it is outer
Wall is connected, and the specified air flue refers to, that gas of setting middle part water fender (11) between outer wall and fuel injector casing (4)
Road；It is connected with middle part water fender (11) and lower water jacket (2) side that the outer wall of the air flue closer to inlet opening (10) is adjacent thereto
Peripheral water fender (14) is equipped between inward wall, between outer wall lower water jacket adjacent thereto (2) lateral inner wall of above-mentioned specified air flue
Equipped with water retaining ribs (13).
2. a kind of efficiently cooling four-valve engine cylinder head according to claim 1, it is characterised in that: the middle part
Water fender (11) runs through entire lower water jacket (2) in the height direction.
3. a kind of efficiently cooling four-valve engine cylinder head according to claim 1, it is characterised in that: the periphery
Water fender (14) originates from the bottom surface of lower water jacket (2), highly 1/2~1 for lower water jacket (2) height.
4. a kind of efficiently cooling four-valve engine cylinder head according to claim 1, it is characterised in that: the gear
Water muscle (13) originates from the bottom surface of lower water jacket (2), is equal to or less than the 1/2 of lower water jacket (2) height in height.
5. a kind of efficiently cooling four-valve engine cylinder head according to claim 1, it is characterised in that: described is upper
Water jacket (1) and lower water jacket (2) are connected by the water stream channel (12) between fuel injector casing (4) and middle part water fender (11)
It is logical.
6. a kind of efficiently cooling four-valve engine cylinder head according to claim 1, it is characterised in that: described four
In a air flue, two air flues close to inlet opening (10) are air intake duct, and two air flues far from inlet opening (10) are gas off-take.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193116.7A CN106762193B (en) | 2016-12-21 | 2016-12-21 | High-efficient refrigerated four-valve engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193116.7A CN106762193B (en) | 2016-12-21 | 2016-12-21 | High-efficient refrigerated four-valve engine cylinder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762193A CN106762193A (en) | 2017-05-31 |
| CN106762193B true CN106762193B (en) | 2019-01-04 |
Family
ID=58893784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611193116.7A Active CN106762193B (en) | 2016-12-21 | 2016-12-21 | High-efficient refrigerated four-valve engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762193B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681340A (en) * | 2019-02-15 | 2019-04-26 | 广西玉柴机器股份有限公司 | Engine cylinder cap |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693619A1 (en) * | 1994-07-19 | 1996-01-24 | Isuzu Motors Limited | Cylinder head of engine |
| EP0897057A2 (en) * | 1997-08-14 | 1999-02-17 | DEUTZ Aktiengesellschaft | Four valve cylinderhead for an internal combustion engine |
| CN103597194A (en) * | 2011-01-27 | 2014-02-19 | Avl里斯脱有限公司 | Liquid-cooled internal combustion engine |
| CN204239082U (en) * | 2014-11-05 | 2015-04-01 | 潍柴动力股份有限公司 | Gas machine cylinder head |
| CN206513451U (en) * | 2016-12-21 | 2017-09-22 | 东风商用车有限公司 | High-efficient refrigerated four-valve engine cylinder head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT413860B (en) * | 2003-11-27 | 2006-06-15 | Avl List Gmbh | CYLINDER HEAD FOR A LIQUID-COOLED MULTI-CYLINDER INTERNAL COMBUSTION ENGINE |
-
2016
- 2016-12-21 CN CN201611193116.7A patent/CN106762193B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693619A1 (en) * | 1994-07-19 | 1996-01-24 | Isuzu Motors Limited | Cylinder head of engine |
| EP0897057A2 (en) * | 1997-08-14 | 1999-02-17 | DEUTZ Aktiengesellschaft | Four valve cylinderhead for an internal combustion engine |
| CN103597194A (en) * | 2011-01-27 | 2014-02-19 | Avl里斯脱有限公司 | Liquid-cooled internal combustion engine |
| CN204239082U (en) * | 2014-11-05 | 2015-04-01 | 潍柴动力股份有限公司 | Gas machine cylinder head |
| CN206513451U (en) * | 2016-12-21 | 2017-09-22 | 东风商用车有限公司 | High-efficient refrigerated four-valve engine cylinder head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762193A (en) | 2017-05-31 |
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