CN105569869A - Four-valve cylinder cover for lightweight engine - Google Patents
Four-valve cylinder cover for lightweight engine Download PDFInfo
- Publication number
- CN105569869A CN105569869A CN201510993484.9A CN201510993484A CN105569869A CN 105569869 A CN105569869 A CN 105569869A CN 201510993484 A CN201510993484 A CN 201510993484A CN 105569869 A CN105569869 A CN 105569869A
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- water jacket
- lower water
- light duty
- oil sprayer
- 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.)
- Pending
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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
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
- F02F1/4221—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder particularly for three or more inlet valves
-
- 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
Abstract
The invention relates to the technical field of diesel cylinders and discloses a four-valve cylinder cover for a lightweight engine. Push rod holes and water jackets are arranged in the cylinder cover; air inlet channels are formed in one side of the cylinder cover; air exhaust channels are formed in the other side of the cylinder cover; the interior of the cylinder cover is divided into four partition cylinders; the water jackets include an upper water jacket and lower water jackets; the upper water jacket is arranged on the upper side in the cylinder cover; the lower water jackets are arranged on the lower side in the cylinder cover; a water channeling hole for communicating the upper water jacket and the lower water jackets is formed between the upper water jacket and the lower water jackets; two adjacent partition cylinders share one air inlet channel; and the push rod holes are arranged close to the corresponding air inlet channels. The four-valve cylinder cover can prevent intake flows from mutually interfering so as to improve the air inlet efficiency, can prevent the ageing problem of lubricating oil and can also improve the cooling efficiency.
Description
Technical field
The present invention relates to cylinder of diesel engine technical field, particularly relate to a kind of light duty engine Four-valve cylinder head.
Background technique
Along with the lifting of power and the upgrading of discharge, heat load and the reinforcing degree of light duty engine are also more and more higher.Adopt the cylinder head of conventional construction can not meet the requirement of following high power density, high strengthening light duty engine in Performance And Reliability.
The intake duct of current light duty engine Four-valve cylinder head generally adopts combination intake structure, every cylinder intake duct 1, as shown in Figure 1, can there is the situation that two-way air inlet is disturbed mutually, affect intake efficiency in intake process; Current OHV cylinder head push-rod hole 3 is generally positioned at air outlet flue 2 side, easily causes aging when lubricant oil flows through exhaust side high-temperature zone.As shown in Figure 2, the cylinder head cooling jacket 4 of existing light duty engine generally adopts not stratified structure, cause the cooling water flow that flows through cylinder head ridge area and flow velocity not high, higher cooling effectiveness cannot be obtained.Existing light pneumatic cylinder cap adopts non-inductive windings and riser structure simultaneously, and structural strength is lower, and the maximum explosive pressure born is limited, limits the lifting of motor reinforcing degree.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention one how to avoid charge air flow mutually to disturb, and improves intake efficiency; Two is how to avoid oil ageing problem, and three is how to improve cooling effectiveness.
(2) technological scheme
In order to solve the problems of the technologies described above, the invention provides a kind of light duty engine Four-valve cylinder head, described cylinder head inside is provided with push-rod hole and water jacket, the side of described cylinder head is provided with intake duct, opposite side is provided with air outlet flue, described cylinder head interior separation be four every cylinder, described water jacket is divided into upper water sleeve and lower water jacket, described upper water sleeve is arranged on the upper inside of described cylinder head, described lower water jacket is arranged on the inner lower of described cylinder head, described upper water sleeve be provided with the channeling water hole both being communicated with between lower water jacket; Between cylinder, share an intake duct described in adjacent, described push-rod hole is arranged near described intake duct.
Wherein, the level that is also provided with between described upper water sleeve and lower water jacket is to the intermediate clapboard arranged, and described channeling water hole is vertically located on described intermediate clapboard.
Wherein, described upper water sleeve and lower water jacket adopt the mode of casting separately to cast out, and described channeling water hole also adopts the mode of casting to be communicated with described upper water sleeve and lower water jacket.
Wherein, described cylinder head inside is also provided with oil sprayer processing department, and described oil sprayer processing department is processed with the vertical oil sprayer bottom outlet arranged, for installing oil sprayer.
Wherein, described oil sprayer processing department and described upper water sleeve and lower water jacket integrally casting shaping.
Wherein, described upper water sleeve and lower water jacket are arranged around described oil sprayer processing department respectively, described oil sprayer bottom outlet and leave one section of wall thickness between upper water sleeve and lower water jacket.
Wherein, described in each, in cylinder, be equipped with a described lower water jacket, be positioned at the adjacent described of each described lower water jacket periphery and be provided with reinforcement riser every the joint of cylinder.
Wherein, described inlet mouth adopts machining to form smooth surface.
(3) beneficial effect
Compared with prior art, the present invention has the following advantages:
A kind of light duty engine Four-valve cylinder head provided by the invention, water jacket is divided into upper water sleeve and lower water jacket, described upper water sleeve is arranged on the upper inside of cylinder head, is mainly used in top board, air flue etc. on the upside of cooling air cylinder cap; Described lower water jacket is arranged on the inner lower of described cylinder head, is mainly used in the base plate on the downside of cooling air cylinder cap, air flue etc.; Described upper water sleeve be provided with the channeling water hole both being communicated with between lower water jacket; First cooling water enters lower water jacket, is aggregated into channeling water hole surrounding, enters upper water sleeve by channeling water hole, effectively improve the cooling effectiveness of cylinder head after successively flowing through intake and exhaust ridge area; Between cylinder, share an intake duct described in adjacent, avoid the charge air flow of combination intake mutually to disturb; Described push-rod hole is arranged near described intake duct, and lubricating oil return is without high-temperature zone thus, effectively prevent oil ageing problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of the combination intake of prior art motor Four-valve cylinder head;
Fig. 2 is the jacket structure for water schematic diagram of prior art motor Four-valve cylinder head;
Fig. 3 is inlet and outlet road and the push-rod hole schematic diagram of a kind of light duty engine Four-valve cylinder head of the present invention;
Fig. 4 is the jacket structure for water schematic diagram of a kind of light duty engine Four-valve cylinder head of the present invention;
Fig. 5 is the inlet mouth schematic diagram of a kind of light duty engine Four-valve cylinder head of the present invention;
Fig. 6 is that the cooling water flow of a kind of light duty engine Four-valve cylinder head of the present invention is to schematic diagram.
In figure: 1: intake duct; 2: air outlet flue; 3: push-rod hole; 4: water jacket; 41: upper water sleeve; 42: lower water jacket; 5: channeling water hole; 6: intermediate clapboard; 7: oil sprayer bottom outlet; 8: inlet mouth; 9: strengthen riser; 10: cooling water flow to.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
As shown in Figure 3 and Figure 4, for a kind of light duty engine Four-valve cylinder head provided by the invention, described cylinder head inside is provided with push-rod hole 3 and water jacket 4, the side of described cylinder head is provided with intake duct 1, opposite side is provided with air outlet flue 2, described intake duct 1 is for setting up the passage between intake manifold and combustion chamber of air cylinder, certain flow is provided, and form certain airflow pattern for burning, described cylinder head interior separation is that overall in matrix pattern four are every cylinder, described water jacket is divided into upper water sleeve 41 and lower water jacket 42, described upper water sleeve 41 is arranged on the upper inside of described cylinder head, be mainly used in top board on the upside of cooling air cylinder cap, air flue etc., described lower water jacket 42 is arranged on the inner lower of described cylinder head, be mainly used in the base plate on the downside of cooling air cylinder cap, air flue etc., described upper water sleeve 41 be provided with the channeling water hole 5 both being communicated with between lower water jacket 42, first cylinder head cooling water enters lower water jacket 42 by exhaust side, the air outlet flue 2 that preferential chilling temperature is higher and exhaust ridge area, then each ridge area is flowed through, reached by the actual internal area controlling each water inlet entrance and control the effect that zones of different flows into the cooling liquid of different flow, the cooling effectiveness of effective raising cylinder head entirety, final cooling water enters upper water sleeve 41, then effluent gases cylinder cap by the channeling water hole 5 between the upper water sleeve 41 of air inlet side and lower water jacket 42, between cylinder, share an intake duct 1 described in adjacent, adopt and share intake duct 1 structure every cylinder, avoid the charge air flow of combination intake 1 mutually to disturb, described push-rod hole 3 is arranged near described intake duct 1, and lubricating oil return is without high-temperature zone thus, effectively avoids oil ageing problem, effectively can promote the maintenance drain period.
Further, the level that is also provided with between described upper water sleeve 41 and lower water jacket 42 is to the intermediate clapboard 6 arranged, and this intermediate clapboard 6 has significant contribution to the bulk strength and rigidity that improve cylinder head, and described channeling water hole 5 is vertically located on described intermediate clapboard 6.
Wherein, described upper water sleeve 41 and lower water jacket 42 adopt the mode of casting separately to cast out, and can form complete intermediate clapboard 6 in the middle of upper and lower water jacket 42, and described channeling water hole 5 also adopts the mode of casting to be communicated with described upper water sleeve 41 and lower water jacket 42.
Described cylinder head inside is also provided with oil sprayer processing department, and described oil sprayer processing department is processed with the vertical oil sprayer bottom outlet 7 arranged, for installing oil sprayer; Thus the installation of convenient oil sprayer, avoid, by increasing extra oil sprayer assembling set, improving the strength and stiffness of cylinder head entirety.
For the ease of manufacturing, described oil sprayer processing department and described upper water sleeve 41 and lower water jacket 42 integrally casting shaping.
Wherein, described upper water sleeve 41 and lower water jacket 42 are arranged around described oil sprayer processing department respectively, described oil sprayer bottom outlet 7 and leave one section of wall thickness between upper water sleeve 41 and lower water jacket 42; For separating oil sprayer and cooling water.
As shown in Figure 6, be equipped with a described lower water jacket 42 described in each in cylinder, adjacent described being provided with every the joint of cylinder being positioned at each described lower water jacket 42 periphery strengthens riser 9; In figure, arrow direction is that cooling water flow is to 10; For reducing each interactional integral rigidity increasing cylinder head every cylinder simultaneously; Intermediate clapboard 6, reinforcement riser 9 and the oil sprayer bottom outlet 7 directly cast out can effectively improve cylinder head strength and stiffness, reduce cylinder cap distortion, and can increase head gasket sealability, meet the high requirement of strength strengthening light pneumatic cylinder cap.
As shown in Figure 5, described inlet mouth 8 adopts machining to form smooth surface, reduces the problem because the air inlet that casting tolerance causes is dammed, promotes intake efficiency.
For the layout of different air valve angle, the technological scheme sharing an intake duct 1 every cylinder is applicable equally.
As can be seen from the above embodiments, the present invention can not only avoid charge air flow mutually to disturb, and improves intake efficiency; Also can avoid oil ageing problem, and can cooling effectiveness be improved.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a light duty engine Four-valve cylinder head, described cylinder head inside is provided with push-rod hole and water jacket, the side of described cylinder head is provided with intake duct, opposite side is provided with air outlet flue, described cylinder head interior separation be four every cylinder, it is characterized in that, described water jacket is divided into upper water sleeve and lower water jacket, and described upper water sleeve is arranged on the upper inside of described cylinder head, described lower water jacket is arranged on the inner lower of described cylinder head, described upper water sleeve be provided with the channeling water hole both being communicated with between lower water jacket; Between cylinder, share a described intake duct described in adjacent, described push-rod hole is arranged near described intake duct.
2. light duty engine Four-valve cylinder head according to claim 1, is characterized in that, the level that is also provided with between described upper water sleeve and lower water jacket is to the intermediate clapboard arranged, and described channeling water hole is vertically located on described intermediate clapboard.
3. light duty engine Four-valve cylinder head according to claim 1, is characterized in that, described upper water sleeve and lower water jacket adopt the mode of casting separately to cast out, and described channeling water hole also adopts the mode of casting to be communicated with described upper water sleeve and lower water jacket.
4. light duty engine Four-valve cylinder head according to claim 1, is characterized in that, described cylinder head inside is also provided with oil sprayer processing department, and described oil sprayer processing department is processed with the vertical oil sprayer bottom outlet arranged, for installing oil sprayer.
5. light duty engine Four-valve cylinder head according to claim 4, is characterized in that, described oil sprayer processing department and described upper water sleeve and lower water jacket integrally casting shaping.
6. light duty engine Four-valve cylinder head according to claim 5, is characterized in that, described upper water sleeve and lower water jacket are arranged around described oil sprayer processing department respectively, described oil sprayer bottom outlet and leave one section of wall thickness between upper water sleeve and lower water jacket.
7. light duty engine Four-valve cylinder head according to claim 1, is characterized in that, is equipped with a described lower water jacket described in each in cylinder, is positioned at the adjacent described of each described lower water jacket periphery and is provided with reinforcement riser every the joint of cylinder.
8. light duty engine Four-valve cylinder head according to claim 1, is characterized in that, described inlet mouth adopts machining to form smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993484.9A CN105569869A (en) | 2015-12-25 | 2015-12-25 | Four-valve cylinder cover for lightweight engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993484.9A CN105569869A (en) | 2015-12-25 | 2015-12-25 | Four-valve cylinder cover for lightweight engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105569869A true CN105569869A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510993484.9A Pending CN105569869A (en) | 2015-12-25 | 2015-12-25 | Four-valve cylinder cover for lightweight engine |
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| Country | Link |
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| CN (1) | CN105569869A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971757A (en) * | 2016-06-23 | 2016-09-28 | 重庆长安汽车股份有限公司 | Water jacket structure of cylinder cover covering exhaust manifold |
| CN109915274A (en) * | 2019-03-05 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of braided channel cylinder head of anti-carbonization of oil |
| CN111102094A (en) * | 2018-10-29 | 2020-05-05 | 丰田自动车株式会社 | Cylinder cover |
| CN111706441A (en) * | 2020-06-18 | 2020-09-25 | 东风商用车有限公司 | Cylinder head and engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19746222A1 (en) * | 1996-11-24 | 1998-05-28 | Alireza Ziabazmi | Cylinder head for four=stroke engine |
| JP3796472B2 (en) * | 2002-09-20 | 2006-07-12 | 株式会社クボタ | Engine with glow plug |
| CN101280733A (en) * | 2007-04-04 | 2008-10-08 | 中国第一汽车集团公司 | Double-air-intake type intake duct |
| CN102235263A (en) * | 2010-04-29 | 2011-11-09 | 广西玉柴机器股份有限公司 | Air cylinder cover for four-valve diesel engine |
| CN202203005U (en) * | 2011-07-26 | 2012-04-25 | 浙江吉利汽车研究院有限公司 | Double-helix air intake port |
| CN202611909U (en) * | 2012-05-15 | 2012-12-19 | 南车玉柴四川发动机股份有限公司 | Medium-speed diesel engine cylinder head |
| CN103291487A (en) * | 2013-05-27 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Cooling water system for cylinder heads of engine |
-
2015
- 2015-12-25 CN CN201510993484.9A patent/CN105569869A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19746222A1 (en) * | 1996-11-24 | 1998-05-28 | Alireza Ziabazmi | Cylinder head for four=stroke engine |
| JP3796472B2 (en) * | 2002-09-20 | 2006-07-12 | 株式会社クボタ | Engine with glow plug |
| CN101280733A (en) * | 2007-04-04 | 2008-10-08 | 中国第一汽车集团公司 | Double-air-intake type intake duct |
| CN102235263A (en) * | 2010-04-29 | 2011-11-09 | 广西玉柴机器股份有限公司 | Air cylinder cover for four-valve diesel engine |
| CN202203005U (en) * | 2011-07-26 | 2012-04-25 | 浙江吉利汽车研究院有限公司 | Double-helix air intake port |
| CN202611909U (en) * | 2012-05-15 | 2012-12-19 | 南车玉柴四川发动机股份有限公司 | Medium-speed diesel engine cylinder head |
| CN103291487A (en) * | 2013-05-27 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Cooling water system for cylinder heads of engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971757A (en) * | 2016-06-23 | 2016-09-28 | 重庆长安汽车股份有限公司 | Water jacket structure of cylinder cover covering exhaust manifold |
| CN111102094A (en) * | 2018-10-29 | 2020-05-05 | 丰田自动车株式会社 | Cylinder cover |
| CN109915274A (en) * | 2019-03-05 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of braided channel cylinder head of anti-carbonization of oil |
| CN111706441A (en) * | 2020-06-18 | 2020-09-25 | 东风商用车有限公司 | Cylinder head and engine |
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Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |