CN102337981A - Cylinder cover cooling structure of four-stroke engine - Google Patents
Cylinder cover cooling structure of four-stroke engine Download PDFInfo
- Publication number
- CN102337981A CN102337981A CN201110223828XA CN201110223828A CN102337981A CN 102337981 A CN102337981 A CN 102337981A CN 201110223828X A CN201110223828X A CN 201110223828XA CN 201110223828 A CN201110223828 A CN 201110223828A CN 102337981 A CN102337981 A CN 102337981A
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- China
- Prior art keywords
- cooling water
- cooling
- cylinder head
- channel
- cylinder cover
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- 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
- 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
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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
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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)
Abstract
The invention relates to a cylinder cover cooling structure of a four-stroke engine. A fuel injector sleeve is arranged at the center of a cylinder cover, and four valve seats distributed uniformly along the circumferential direction are arranged around the fuel injector sleeve. The cylinder cover cooling structure is characterized in that the bottom surface of the cylinder cover is provided with a cooling water inlet which is used for introducing cooling water from a machine body into the cylinder cover; the cylinder cover is internally provided with a cooling water channel communicated with the cooling water inlet, the cooling water channel is arranged around the four valve seats; a cooling cavity used for cooling a fuel injector and an inlet/outlet channel is arranged around the fuel injector sleeve and is positioned above the cooling water channel and communicated with the cooling water channel through a cooling water inlet channel, the cooling water inlet channel is arranged near the surrounding of the fuel injector sleeve, and the top of the cooling cavity is provided with a cooling water outlet used for introducing cooling water to flow outside. According to the cylinder cover cooling structure, the mechanical load and heat load carrying capacity of the cylinder cover is greatly improved, and all parts of the cylinder are efficiently cooled.
Description
Technical field
The invention belongs to technical field of engines, relate to a kind of cooling water trend and Structure Designing Problem of four stroke engine cylinder head, specifically is a kind of cylinder head cooling structure of four stroke engine.
Background technique
Along with the continuous development of engine technology, the reinforcing degree of motor continues to increase, and the mechanical load and the heat load that cause engine component to bear improve constantly, and how guaranteeing that engine component is worked has reliably become engineering department's difficult problem.Cylinder head is as the strength member of motor; On the motor that height is strengthened; Defectives such as crackle in use appear in the cylinder head of traditional experience design owing to heat load is too high through regular meeting, the intensity that how to adopt measure effectively to reduce its heat load assurance cylinder head has become the key issue that technical field of engines needs to be resolved hurrily.
Summary of the invention
The objective of the invention is to the deficiency in the cylinder head cooling structure design of the prior art; Thereby a kind of cylinder head cooling structure that is applicable to four stroke engine reasonable in design is provided; Promptly to the design of the turnover location arrangements of the cooling water channel shape and structure of cylinder head and cooling water; Through fluid analysis, the cooling structure that draws.
According to technological scheme provided by the invention: a kind of cylinder head cooling structure of four stroke engine; At the cylinder head center oil sprayer cover is housed; Around the oil sprayer cover, be provided with four circumferential equally distributed valve seats in edge; It is characterized in that: said cylinder head has cooling water intake on the bottom surface, and its cooling water that is used for body is come out is introduced cylinder head; Be provided with the cooling water channel that is connected with cooling water intake in the said cylinder head, cooling water channel is arranged in around four valve seats; Be provided with the cooling chamber that is used to cool off oil sprayer and import/exhaust road around the said oil sprayer cover, cooling chamber is positioned at the cooling water channel top, and is connected with cooling water channel through the cooling water inlet channel, near said cooling water inlet channel is arranged on around the oil sprayer cover; Said cooling chamber top offers the cooling water outlet that is used to cooling water flow out of.
As further improvement of the present invention, the plane parallel at said cooling water channel place is in the cylinder head bottom surface.
As further improvement of the present invention, said cooling water inlet channel has four, and their edges circumferentially are evenly distributed on around the oil sprayer cover, and the cooling water inlet channel is bottom-up to tilt to the oil sprayer cover.
As further improvement of the present invention, said cooling water channel processes from the side of cylinder head, and the outer end of cooling water channel is with silently smothering shutoff.
The present invention compared with prior art; Advantage is: the present invention passes through fluid analysis; The cooling water channel shape and structure of cylinder head and the turnover position of cooling water are carried out appropriate design; Make the mechanical load and the heat load ability of cylinder head improve greatly, can efficiently accomplish cooling the cylinder head each several part; Cylinder head of the present invention can adopt casting, and production technology is simple, and yield rate improves.
Description of drawings
Fig. 1 is a cylinder head front view of the present invention.
Fig. 2 is a cylinder head plan view of the present invention.
Fig. 3 is that A-A among Fig. 2 is to sectional view.
Fig. 4 is that B-B among Fig. 3 is to sectional view.
Description of reference numerals: 1-cylinder head, 1a-cooling water intake, 1b-cooling water channel, 1c-cooling water inlet channel, 1d-cooling chamber, 1e-cooling water outlet, 2-oil sprayer cover, 3-silently, 4-valve seat.
Embodiment
To combine the embodiment in the accompanying drawing that the present invention is further described below.
Like Fig. 1 ~ shown in Figure 4, the oil sprayer cover 2 that is used to install oil sprayer is equipped with at said cylinder head 1 center, around oil sprayer cover 2, is provided with four circumferential equally distributed valve seats 4 in edge; Said cylinder head has cooling water intake 1a on 1 bottom surface, and its cooling water that is used for body is come out is introduced cylinder head 1; Be provided with the cooling water channel 1b that is connected with cooling water intake 1a in the said cylinder head 1, cooling water channel 1b is arranged in around four valve seats 4; Be provided with the cooling chamber 1d that is used to cool off oil sprayer and import/exhaust road around the said oil sprayer cover 2; Cooling chamber 1d is positioned at cooling water channel 1b top; And be connected with cooling water channel 1b through cooling water inlet channel 1c, near said cooling water inlet channel 1c is arranged on around the oil sprayer cover 2; Said cooling chamber 1d top offers the cooling water outlet 1e that is used to cooling water flow out of.
Like Fig. 1, Fig. 3, shown in Figure 4, described cooling water intake 1a processes from cylinder head 1 bottom surface.The plane parallel at said cooling water channel 1b place is in cylinder head 1 bottom surface, and cooling water channel 1b is that the side from cylinder head 1 processes, and the outer end of cooling water channel 1b is with silently 3 smothering shutoff.Said cooling water inlet channel 1c has four; They overlap around 2 along circumferentially being evenly distributed on oil sprayer; Cooling water inlet channel 1c processes from the hole direction that oil sprayer overlaps 2 tops is installed, and they are bottom-up to tilt to oil sprayer cover 2, thereby can ensure the cooling to oil sprayer cover 2.Said cooling chamber 1d and cooling water outlet 1e are the sandbox chambeies, can adopt casting.
During concrete work; Cooling water comes out from body, and four cooling water intake 1a on cylinder head 1 bottom surface get in the cylinder head 1, through cooling water channel 1b around the cylinder head 1 to center flow; Cylinder head 1 bottom is cooled off; Four cooling water inlet channel 1c around oil sprayer cover 2 get in the cooling chamber 1d then, and oil sprayer and import/exhaust road are cooled off, and flow out from cooling water outlet 1e at last; Get into water return pipeline, thereby accomplished cooling cylinder head 1 bottom, valve seat 4, oil sprayer and import/exhaust road.
Claims (4)
1. the cylinder head cooling structure of a four stroke engine; At cylinder head (1) center oil sprayer cover (2) is housed; Be provided with four circumferential equally distributed valve seats in edge (4) on every side at oil sprayer cover (2); It is characterized in that: said cylinder head (1) has cooling water intake (1a) on the bottom surface, and its cooling water that is used for body is come out is introduced cylinder head (1); Be provided with the cooling water channel (1b) that is connected with cooling water intake (1a) in the said cylinder head (1), cooling water channel (1b) is arranged in four valve seats (4) on every side; Said oil sprayer cover (2) is provided with the cooling chamber (1d) that is used to cool off oil sprayer and import/exhaust road on every side; Cooling chamber (1d) is positioned at cooling water channel (1b) top; And be connected with cooling water channel (1b) through cooling water inlet channel (1c), said cooling water inlet channel (1c) be arranged on oil sprayer cover (2) on every side near; Said cooling chamber (1d) top offers the cooling water outlet (1e) that is used to cooling water flow out of.
2. the cylinder head cooling structure of four stroke engine as claimed in claim 1 is characterized in that: the plane parallel at said cooling water channel (1b) place is in cylinder head (1) bottom surface.
3. the cylinder head cooling structure of four stroke engine as claimed in claim 1; It is characterized in that: said cooling water inlet channel (1c) has four; They are along circumferentially being evenly distributed on oil sprayer cover (2) all around, and cooling water inlet channel (1c) is bottom-up to tilt to oil sprayer cover (2).
4. the cylinder head cooling structure of four stroke engine as claimed in claim 1, it is characterized in that: said cooling water channel (1b) processes from the side of cylinder head (1), and the outer end of cooling water channel (1b) smothers shutoff with silently (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223828XA CN102337981A (en) | 2011-08-05 | 2011-08-05 | Cylinder cover cooling structure of four-stroke engine |
| PCT/CN2012/001029 WO2013020357A1 (en) | 2011-08-05 | 2012-07-31 | Structure for cooling cylinder head of four-stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223828XA CN102337981A (en) | 2011-08-05 | 2011-08-05 | Cylinder cover cooling structure of four-stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102337981A true CN102337981A (en) | 2012-02-01 |
Family
ID=45513895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110223828XA Pending CN102337981A (en) | 2011-08-05 | 2011-08-05 | Cylinder cover cooling structure of four-stroke engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102337981A (en) |
| WO (1) | WO2013020357A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020357A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Structure for cooling cylinder head of four-stroke engine |
| CN103953454A (en) * | 2014-04-03 | 2014-07-30 | 中国北方发动机研究所(天津) | Water cavity structure of air cylinder cover of internal combustion engine |
| CN105257424A (en) * | 2015-10-23 | 2016-01-20 | 力帆实业(集团)股份有限公司 | Air cylinder cover for motorcycle water cooled engine |
| CN105464831A (en) * | 2014-09-29 | 2016-04-06 | 通用汽车环球科技运作有限责任公司 | Engine assembly including thermal barrier |
| CN110242435A (en) * | 2019-07-02 | 2019-09-17 | 重庆潍柴发动机有限公司 | A kind of cylinder cover for diesel engine |
| CN114962050A (en) * | 2021-12-16 | 2022-08-30 | 中国船舶重工集团公司第七一一研究所 | Cylinder head cooling water cavity structure, cylinder head and diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1108324A (en) * | 1964-08-21 | 1968-04-03 | List Hans | Cylinder head for water-cooled, valve-controlled fuel injection type internal combustion engines |
| CN2866866Y (en) * | 2006-01-24 | 2007-02-07 | 潍柴动力股份有限公司 | Cylinder head cooling waterway |
| CN201092896Y (en) * | 2007-10-26 | 2008-07-30 | 上海柴油机股份有限公司 | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap |
| CN101413459A (en) * | 2008-11-12 | 2009-04-22 | 无锡动力工程股份有限公司 | High strength cylinder cap with double-layer water stream channel |
| CN202220672U (en) * | 2011-08-05 | 2012-05-16 | 无锡开普动力有限公司 | Cylinder cap cooling structure of four-stroke engine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3802886A1 (en) * | 1987-02-04 | 1988-08-18 | Avl Verbrennungskraft Messtech | Cylinder head for water-cooled internal combustion engines |
| DE4420130C1 (en) * | 1994-06-09 | 1995-11-16 | Mtu Friedrichshafen Gmbh | Cylinder head for an internal combustion engine |
| US6279516B1 (en) * | 2000-02-16 | 2001-08-28 | Deere & Company | Cylinder head with two-plane water jacket |
| CN2628738Y (en) * | 2003-06-06 | 2004-07-28 | 浙江星月柴油机有限公司 | Air cylinder head installed with reinforced cooled water channel at nose bridge zone |
| FR2906571B1 (en) * | 2006-10-02 | 2012-01-06 | Renault Sas | CULASSE WITH INSERTS FOR INTERNAL COMBUSTION ENGINES |
| CN201306225Y (en) * | 2008-11-07 | 2009-09-09 | 无锡动力工程股份有限公司 | High-strength cylinder cover with two layers of water channels |
| CN201326468Y (en) * | 2008-12-09 | 2009-10-14 | 奇瑞汽车股份有限公司 | Cylinder cover with cooling water jacket |
| CN201396222Y (en) * | 2009-03-31 | 2010-02-03 | 南通柴油机股份有限公司 | One-cylinder one-cover four-valve series diesel engine cylinder cover |
| CN102337981A (en) * | 2011-08-05 | 2012-02-01 | 无锡开普动力有限公司 | Cylinder cover cooling structure of four-stroke engine |
-
2011
- 2011-08-05 CN CN201110223828XA patent/CN102337981A/en active Pending
-
2012
- 2012-07-31 WO PCT/CN2012/001029 patent/WO2013020357A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1108324A (en) * | 1964-08-21 | 1968-04-03 | List Hans | Cylinder head for water-cooled, valve-controlled fuel injection type internal combustion engines |
| CN2866866Y (en) * | 2006-01-24 | 2007-02-07 | 潍柴动力股份有限公司 | Cylinder head cooling waterway |
| CN201092896Y (en) * | 2007-10-26 | 2008-07-30 | 上海柴油机股份有限公司 | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap |
| CN101413459A (en) * | 2008-11-12 | 2009-04-22 | 无锡动力工程股份有限公司 | High strength cylinder cap with double-layer water stream channel |
| CN202220672U (en) * | 2011-08-05 | 2012-05-16 | 无锡开普动力有限公司 | Cylinder cap cooling structure of four-stroke engine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020357A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Structure for cooling cylinder head of four-stroke engine |
| CN103953454A (en) * | 2014-04-03 | 2014-07-30 | 中国北方发动机研究所(天津) | Water cavity structure of air cylinder cover of internal combustion engine |
| CN105464831A (en) * | 2014-09-29 | 2016-04-06 | 通用汽车环球科技运作有限责任公司 | Engine assembly including thermal barrier |
| CN105257424A (en) * | 2015-10-23 | 2016-01-20 | 力帆实业(集团)股份有限公司 | Air cylinder cover for motorcycle water cooled engine |
| CN110242435A (en) * | 2019-07-02 | 2019-09-17 | 重庆潍柴发动机有限公司 | A kind of cylinder cover for diesel engine |
| CN114962050A (en) * | 2021-12-16 | 2022-08-30 | 中国船舶重工集团公司第七一一研究所 | Cylinder head cooling water cavity structure, cylinder head and diesel engine |
| CN114962050B (en) * | 2021-12-16 | 2023-10-13 | 中国船舶集团有限公司第七一一研究所 | Cylinder head cooling water cavity structure, cylinder head and diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013020357A1 (en) | 2013-02-14 |
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Application publication date: 20120201 |