CN104879232A - Cylinder head of engine and cooling structure of bridge zone - Google Patents
Cylinder head of engine and cooling structure of bridge zone Download PDFInfo
- Publication number
- CN104879232A CN104879232A CN201510279594.9A CN201510279594A CN104879232A CN 104879232 A CN104879232 A CN 104879232A CN 201510279594 A CN201510279594 A CN 201510279594A CN 104879232 A CN104879232 A CN 104879232A
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- Prior art keywords
- cooling
- ridge area
- cylinder head
- channel
- cooling structure
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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
- F02F1/26—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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- 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 discloses a cooling structure for a bridge zone of a cylinder head of an engine. The cooling structure only comprises one cooling channel, wherein one port of the cooling channel is communicated to a cylinder block channel of a cylinder block of the engine; the other port of the cooling channel guides cooling water to the bridge zone; the cooling channel is a pipeline formed by smooth curve transition from a cylinder block channel end to a bridge zone end. Through the cooling structure, the temperature of the bridge zone can be lowered effectively and rapidly, so that the cooling requirement of the cylinder head is met, and the working performance of the engine is ensured. On this basis, the other core of the invention is to provide an engine cylinder head having the cooling structure.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of cylinder head of motor and the cooling structure of ridge area thereof.
Background technique
Motor produces a large amount of heats in the course of the work, and its high-temperature gas, by the intake and exhaust channel etc. in cylinder head, forms high-temperature area around it, therefore, needs the cooling effect of lifting cylinder lid, to guarantee the service behaviour of motor.Especially, the entity area between the inner intake and exhaust channel of cylinder head, i.e. the cylinder head ridge area of motor, complex structure, heat radiation difficulty cause temperature higher.Therefore, improve the cooling effect to cylinder head ridge area, guarantee that the service behaviour of motor becomes one of emphasis of cylinder head cooling day by day.
In the prior art, patent ZL201210087286.2 " a kind of engine cylinder cap cooling jacket " proposes structure cylinder head ridge area being arranged to independent cooling channel 10 ', shown in composition graphs 1, which disclose and process with one heart vertically water channel 11 ' in cylinder block 20 ' and cylinder head 30 ', position level of processing water channel 12 ' parallel with ridge area 31 ' in cylinder head 30 ', horizontal penstock 12 ' is through with vertical water channel 11 '; Cooling water enters cylinder head 30 ' cool ridge area 31 ' through vertical water channel 11 ', horizontal penstock 12 '; The termination of horizontal penstock 12 ' is provided with bowl-type plug 13 ', avoids cooling water flow out of cylinder head 30 '.
The cooling channel 10 ' of above-mentioned cooling ridge area 31 ' temperature, cylinder head 30 ' comprises two orthogonal water channels, namely horizontal penstock 12 ' and vertical water channel 11 ' is comprised, both intersections are sharp-pointed right angle, the flowing of cooling water is caused to be stopped, constrain the flow velocity of cooling water, flow, poor to the cooling effect of ridge area 31 ', cannot cool ridge area 31 ' quickly and efficiently.
Further, due to the particularity that horizontal penstock 12 ' is processed, structure is caused to there is certain defect, so, need to arrange Bowl Plug 13 ' in its termination, closely cooperated by Bowl Plug 13 ' and horizontal penstock 12 ', thus sealed horizontal water channel 12 ', avoid cooling water flow out of cylinder head 30 '.But Bowl Plug 13 ' is installed on the inner horizontal penstock 12 ' of cylinder head 30 ', its operating difficulties, and processing technology difficulty is large, and, still there is the risk that horizontal penstock 12 ' reveals cooling water.
In view of this, urgently for above-mentioned technical problem, design is optimized to ridge area of the prior art cooling structure, reduces the temperature of ridge area effectively and rapidly, meet the cooling requirement of cylinder head.
Summary of the invention
Object of the present invention, for providing a kind of cooling structure of engine cylinder cap ridge area, by this cooling structure, can reduce the temperature of ridge area effectively and rapidly, to meet the cooling requirement of cylinder head, guarantee the service behaviour of motor.On this basis, another object of the present invention is for providing a kind of cylinder head with the motor of this cooling structure.
For solving the problems of the technologies described above, the invention provides a kind of cooling structure of engine cylinder cap ridge area, described cooling structure only comprises a cooling channel, the Single port of described cooling channel is communicated with the cylinder body passage being arranged at the cylinder block of described motor, and cooling water is drained to described ridge area by another port; Described cooling channel is the pipeline formed by described cylinder body tunnel ends to described ridge area end smooth curved transition.
Adopt the cylinder head of said structure, in the process that ridge area is cooled, after cooling water vertically flows into cooling channel by the cylinder body passage of cylinder block, the inner-walls of duct flowing that cooling water is formed along smoothed curve.So, cooling water, without ground, obvious turning, mild flowing, effectively improves stability, the continuity in the flow velocity of cooling water current, flow and direction, substantially increases the cooling effect of ridge area; Further, cooling structure only comprises a cooling channel, its good sealing effect, and two port is communicated with cylinder body passage, ridge area respectively, improves sealing, effectively evades cooling water and overflows cylinder head.
Alternatively, described cooling channel is the pipeline of arcuation.
Alternatively, described cooling channel comprises horizontal segment passage and vertical section passage, the joining place arc transition of described horizontal segment passage and described vertical section passage.
Alternatively, the diameter of described cooling channel is greater than the diameter of described cylinder body passage.
Alternatively, described cooling channel and the casting integrated formation of described cylinder head.
The present invention also provides a kind of engine cylinder cap, described cylinder be covered with as described in cooling structure.
Because above-mentioned cooling structure has above technique effect, therefore, the engine cylinder cap with this cooling structure also should have identical technique effect.
Accompanying drawing explanation
Fig. 1 is the cooling structure schematic diagram of ridge area in prior art;
Fig. 2 is the cooling structure schematic diagram of ridge area in specific embodiment;
Fig. 3 is the schematic cross-section that cooling water flow out of end axial direction in Fig. 2 along cooling channel.
Fig. 1:
Cooling channel 10 ', vertically water channel 11 ', horizontal penstock 12 ', Bowl Plug 13 ';
Cylinder block 20 ';
Cylinder head 30 ', ridge area 31 '.
In Fig. 2 and Fig. 3:
Cooling channel 10, cylinder body passage 20, cylinder head 30, cylinder block 40;
Ridge area 31, intake duct 32, air outlet flue 33.
Embodiment
Core of the present invention, for providing a kind of cooling structure of engine cylinder cap ridge area, by this cooling structure, can reduce the temperature of ridge area effectively and rapidly, thus meet the cooling requirement of cylinder head, guarantee the service behaviour of motor.On this basis, another core of the present invention is for providing a kind of cylinder head with the motor of this cooling structure.
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2 and Fig. 3, wherein, Fig. 2 is the cooling structure schematic diagram of ridge area in specific embodiment; Fig. 3 is the schematic cross-section that cooling water flow out of end axial direction in Fig. 2 along cooling channel.
The invention provides a kind of cooling structure of engine cylinder cap 30 ridge area 31, this cooling structure only comprises a cooling channel 10, as the designated lane of cooling ridge area 31, effectively can reduce the temperature of ridge area 31.
In a kind of embodiment, as shown in Figures 2 and 3, the Single port of this cooling channel 10 is communicated with cylinder body passage 20, cooling water flows into cooling channel 10 by the cylinder body passage 20 of the cylinder block 40 of motor, be guided to another port, this port is just to the ridge area 31 between intake duct 32, air outlet flue 33.The pipeline that this cooling channel 10 is formed for smooth curved transition, after its cooling water has vertical cylinder body passage 20 to enter cooling channel 10, slowly can flow along level and smooth inner-walls of duct, evade the impact of sharp corner to current, stability, the continuity of effective lifting cooling water flow velocity, flow and flow direction, and then the cooling effect improving ridge area 31.
This cooling structure only comprises a cooling channel 10, and, by means of only two ports, namely one be communicated with cylinder body passage 20 cooling water intake, another be the coolant outlet cooling ridge area 31.So, cooling water is only along being the flow direction flowing that ridge area 31 cools, namely the strict oriented flow of cooling water is to ridge area 31, evade the sealing difference of other ports in prior art and the cooling water overflow phenomenon that causes, and, without the need to another plus seal, its structure is simple, sealing strong, can guarantee reliable and stable cooling ridge area 31.
In another specific embodiment, above-mentioned cooling channel 10 is the pipeline of arcuation, that is, the one section segmental arc pipeline of this cooling channel 10 for seamlessly transitting, its whole cooling channel 10 is the mild arcuation pipeline of continuous print, cooling water can be mild in cooling channel 10 flowing, improving the stability of flow of cooling water further, providing safeguard for promoting ridge area 31 cooling effect.
In another specific embodiment, its cooling channel 10 comprises horizontal segment passage and vertical section passage, and the joining place arc transition of two sections; That is, the corner of cooling channel 10 is linked up smoothly by circular arc, avoids cooling water to be impacted through right angle, the restriction flow velocity of cooling water, the stability of flow.Setting like this, its structure can guarantee the cooling effect of ridge area 31, in turn simplify processing technology, is convenient to be shaped.
It should be noted that, the pipeline seamlessly transitting curve formation comprises the pipeline of arcuation, is connected and the pipeline formed in joining place arc transition with vertical section passage by horizontal segment passage, that is, seamlessly transitting curve, to include whole segment pipe be the curve that radius of curvature is identical, also be included in and connect by straightway the pipeline only utilizing arc transition at joining place, certainly, in addition to the implementation, the pipeline seamlessly transitting curve formation can also comprise the pipeline be connected to form by the curve smoothing of different curvature radius.
For above embodiment, also can to cooling channel 10 optimal design further.Particularly, as shown in the figure, the diameter of this cooling channel 10 is greater than the diameter of cylinder body passage 20.Setting like this, when cooling water can be made to enter cylinder head 30 from cylinder block 40, evades the resistance of cylinder head 30 bottom surface, thus enters in cooling channel 10 smoothly, ensures the flow of cooling water, the stability of flow velocity further.
Adopt said structure, efficiently solve cylinder body passage 20 when there is deviation with the port of cooling channel 10, cooling water still can enter in the cooling channel 10 of cylinder head 30 smoothly.Therefore, compared with prior art, reduce the required precision of processing, assembling, and then saved cost.
In a particular embodiment, the diameter of this cooling channel 10 and the difference of cylinder body passage 20 are set to 2mm, certainly, this difference is not limited thereto, also can be arranged within the scope of 1.5mm ~ 2.5mm, when guaranteeing that the diameter of cooling channel 10 is greater than the diameter of cylinder body passage 20, guarantee that cylinder block 40 is connected with the reliable of cylinder head 30.
In the above-described embodiments, its cooling channel 10 is integrally formed with cylinder head 30 by the mode of casting, on the one hand, is convenient to the pipeline of formation smooth curved transition, guarantees the smoothness of flow of cooling water; On the other hand, evade the troublesome operation adopting the secondary operations such as machining, save processing cost.
Further, adopt the cooling structure of said structure, conserve space, be easy to arrange, evade cooling channel 10 and the interference of other structures of cylinder head 30, guarantee the intensity of cylinder head 30 structure.
In addition, the present invention also provides a kind of engine cylinder cap 30, and this engine cylinder cap 30 has above-mentioned cooling structure, and other structure and working principle are please also refer to prior art.
Because above-mentioned cooling structure has above technique effect, therefore, the engine cylinder cap 30 with this cooling structure also should have identical technique effect.
Above a kind of cylinder head of motor provided by the present invention and the cooling structure of ridge area thereof are described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. the cooling structure of an engine cylinder cap ridge area, it is characterized in that, described cooling structure only comprises a cooling channel (10), the Single port of described cooling channel (10) is communicated with the cylinder body passage (20) being arranged at the cylinder block (40) of described motor, and cooling water is drained to described ridge area (31) by another port; Described cooling channel (10) is hold by described cylinder body passage (20) pipeline holding smooth curved transition to be formed to described ridge area (31).
2. the cooling structure of engine cylinder cap ridge area according to claim 1, is characterized in that, the pipeline that described cooling channel (10) are arcuation.
3. the cooling structure of engine cylinder cap ridge area according to claim 1, it is characterized in that, described cooling channel (10) comprises horizontal segment passage and vertical section passage, the joining place arc transition of described horizontal segment passage and described vertical section passage.
4. the cooling structure of the engine cylinder cap ridge area according to any one of claim 1-3, is characterized in that, the diameter of described cooling channel (10) is greater than the diameter of described cylinder body passage (20).
5. the cooling structure of the engine cylinder cap ridge area according to any one of claim 1-3, is characterized in that, described cooling channel (10) and described cylinder head (30) casting integrated formation.
6. a cylinder head for motor, is characterized in that, described cylinder head (30) is provided with the cooling structure according to any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279594.9A CN104879232A (en) | 2015-05-27 | 2015-05-27 | Cylinder head of engine and cooling structure of bridge zone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279594.9A CN104879232A (en) | 2015-05-27 | 2015-05-27 | Cylinder head of engine and cooling structure of bridge zone |
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| Publication Number | Publication Date |
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| CN104879232A true CN104879232A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510279594.9A Pending CN104879232A (en) | 2015-05-27 | 2015-05-27 | Cylinder head of engine and cooling structure of bridge zone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888874A (en) * | 2016-06-14 | 2016-08-24 | 广西玉柴机器股份有限公司 | Cylinder cover |
| WO2020192043A1 (en) * | 2019-03-28 | 2020-10-01 | 广西玉柴机器股份有限公司 | Three-way cylinder head cooling structure having partially tapered exhaust channel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN200964902Y (en) * | 2006-11-02 | 2007-10-24 | 广西玉柴机器股份有限公司 | Water-jetting passage structure of diesel cylinder lid |
| CN201778909U (en) * | 2010-09-02 | 2011-03-30 | 安徽全柴动力股份有限公司 | Diesel engine cylinder cover with pipe laying channel |
| CN202468047U (en) * | 2012-02-09 | 2012-10-03 | 奇瑞汽车股份有限公司 | Cooling structure for nose bridge area of cylinder cover of two-valve diesel engine |
| CN204783303U (en) * | 2015-05-27 | 2015-11-18 | 潍柴动力股份有限公司 | Cylinder head of engine and cooling structure in bridge of nose district thereof |
-
2015
- 2015-05-27 CN CN201510279594.9A patent/CN104879232A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN200964902Y (en) * | 2006-11-02 | 2007-10-24 | 广西玉柴机器股份有限公司 | Water-jetting passage structure of diesel cylinder lid |
| CN201778909U (en) * | 2010-09-02 | 2011-03-30 | 安徽全柴动力股份有限公司 | Diesel engine cylinder cover with pipe laying channel |
| CN202468047U (en) * | 2012-02-09 | 2012-10-03 | 奇瑞汽车股份有限公司 | Cooling structure for nose bridge area of cylinder cover of two-valve diesel engine |
| CN204783303U (en) * | 2015-05-27 | 2015-11-18 | 潍柴动力股份有限公司 | Cylinder head of engine and cooling structure in bridge of nose district thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888874A (en) * | 2016-06-14 | 2016-08-24 | 广西玉柴机器股份有限公司 | Cylinder cover |
| WO2020192043A1 (en) * | 2019-03-28 | 2020-10-01 | 广西玉柴机器股份有限公司 | Three-way cylinder head cooling structure having partially tapered exhaust channel |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150902 |