CN201461114U - Water jacket structure of cylinder block of diesel engine - Google Patents
Water jacket structure of cylinder block of diesel engine Download PDFInfo
- Publication number
- CN201461114U CN201461114U CN2009201328855U CN200920132885U CN201461114U CN 201461114 U CN201461114 U CN 201461114U CN 2009201328855 U CN2009201328855 U CN 2009201328855U CN 200920132885 U CN200920132885 U CN 200920132885U CN 201461114 U CN201461114 U CN 201461114U
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- Prior art keywords
- water
- jacket
- exhaust side
- water jacket
- cylinder
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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.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 230000007704 transition Effects 0.000 claims abstract description 6
- 210000003205 muscle Anatomy 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract description 19
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 abstract 1
- 210000000476 body water Anatomy 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Abstract
A water jacket structure of a cylinder block of a diesel engine comprises a ring-shaped cylinder block water jacket which is arranged between the cylinder block and a cylinder jacket and is encircled by a water jacket rear end, a water jacket front end, an air inlet side water jacket and an air exhaust side water jacket. The air inlet side water jacket is provided with a water pump water supply hole, a water supply transition region and a group of air inlet side cylinder cover upper water holes. The air exhaust side water jacket is provided with a group of air exhaust side cylinder cover upper water holes and a group of air exhaust side bridge zones. The water jacket structure is characterized in that the bridge zone cylinder cover upper water holes are arranged in the air exhaust side bridge zones and are communicated with the air inlet side water jacket through oblique water pipes. An exhaust gas recirculation (EGR) cooler water intake is arranged in the air exhaust side bridge zones. The air exhaust side cylinder cover upper water holes are more than the air inlet side cylinder cover upper water holes. The water supply holes, the bridge zone cylinder cover upper water holes and the single-row linear oblique water pipes are adopted, thus strengthening cooling of the air exhaust side bridge zones. The EGR cooler water intake is arranged in the retardation area where the air exhaust side cooling liquid flows, thus arranging the water intake and eliminating the retardation area simultaneously.
Description
Technical field
The utility model relates to a kind of cylinder body water jacket of engine, particularly relates to a kind of water jacket structure of diesel cylinder block.
Background technique
Chinese patent 200320127288.6 discloses a kind of water jacket structure of diesel cylinder block, comprise manger board, water inlet, knuckle, cylinder hole water jacket, water hole on water hole, the air inlet side cylinder cap on cylinder hole, taper jacket structure for water, the exhaust side cylinder cap down, it is characterized in that cylinder hole jacket structure for water application jet pipe principle, be designed to down go up little taper jacket structure for water greatly, accelerate flow velocity when forcing cooling water from the bottom up.Move a height on the following cylinder hole, thereby make cylinder hole water jacket shorten a height, strengthen the cylinder sleeve middle part and support, reduced the vibration deformation at cylinder sleeve middle part.The water inlet is tangential water inlet, makes the cylinder sleeve ambient water even.There are manger board and knuckle in the place in the water inlet, makes part cooling water changed course exhaust side.The position, water hole is lower on the exhaust side cylinder cap, and the position, water hole is higher on the air inlet side cylinder cap, has accelerated the exhaust side water velocity, has controlled the cavitation pitting of exhaust side cylinder bore wall effectively.Advantage is to overcome the high-power diesel engine cylinder liner cavitation, has prolonged the working life of diesel engine.
Chinese patent 200620093081.5 discloses the novel block jacket of a kind of motor car engine, it includes a circular cylinder water jacket that is provided with between cylinder block and cylinder liner, its technological points is: be provided with an arc boss that makes the current direction upper punch in the bottom of the inboard of water jacket body water inlet, the joint between adjacent two cylinder liner is provided with a water-flowing trough that both sides water jacket body is connected.The bottom of water inlet increases arc boss, makes the current upper punch, increases the water yield of going into that flows into the cylinder cap water jacket.The utility model can cool off the cylinder sleeve joint owing to increase the cylinder sleeve water-flowing trough, prevents the too high and disabler of cylinder sleeve joint Yin Wendu; Bottom at water inlet increases arc boss, makes the current upper punch, increases the water yield of going into that flows into the cylinder cap water jacket.Rational in infrastructure, advantages such as entry is unobstructed, the cylinder cap water filling good, the cooling of cylinder sleeve joint is good, long service life that the utility model also has.
At present, the reinforcing degree of motor is more and more higher, but causes the cooling liquid flowing space to diminish, and heat load is increasing, makes engine life not reach re-set target.In order to keep the normal operation of motor, must farthest optimize the cooling jacket of motor.
Summary of the invention
The purpose of this utility model is the deficiency that exists in the available engine cylinder body water jacket to provide a kind of diesel engine cylinder body jacket structure for water, solves the flow proportional problem in the Rational flow of cooling liquid in the water jacket and reasonable distribution water hole on each.Not only prevent the appearance of stagnant regions (promptly preventing cavitation phenomenon), and prolong the life-span of diesel engine.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of diesel engine cylinder body jacket structure for water, it comprises and is arranged on the circular cylinder water jacket that is encircled into by water jacket rear end, water jacket front end, air inlet side water jacket and exhaust side water jacket between cylinder block and the cylinder liner, water hole on water pump water supply hole, water supply transition region and the one group of air inlet side cylinder cap is arranged on the described air inlet side water jacket, water hole on one group of exhaust side cylinder cap, one group of exhaust side bridge of the nose district are arranged on the described exhaust side water jacket; It is characterized in that: in the exhaust side bridge of the nose district water hole on the bridge of the nose district cylinder cap is set, the water hole connects by oblique water pipe in bridge of the nose district and air inlet side water jacket on the described bridge of the nose district cylinder cap.
Further, for eliminating stagnant regions, exhaust gas recirculation (EGR) cooler intake is set in exhaust side bridge of the nose district in the exhaust side coolant flow.
Further, for the flow direction and the flow velocity of adjusting cooling liquid in the water jacket, and reduce the temperature of cylinder block exhaust side as much as possible, prevent that intake and exhaust side temperature difference is excessive and the cylinder block thermal change type that causes, the water hole is more than water hole on the air inlet side cylinder cap on the described exhaust side cylinder cap.
Good effect of the present utility model: comprise water hole and the oblique water pipe of single straight line on water supply hole, place, the bridge of the nose district cylinder cap owing to adopt, strengthened the cooling in exhaust side bridge of the nose district.Stagnant regions in the exhaust side coolant flow is provided with the cooler for recycled exhaust gas intake, and the layout intake kills two birds with one stone with the elimination stagnant regions.Front end at water jacket has the water pump water supply hole, has the bigger transition region of fillet to connect water jacket and water supply hole, reduces the kinetic energy rejection of cooling liquid.The flow proportional in flowing of cooling liquid and reasonable distribution water hole on each is optimized in the variation (increase cylinder muscle) of water jacket rear end by structure.Water supply hole is opened in water jacket air inlet side, and the water hole utilizes the flow direction and the flow velocity of water in the structural advantage intensity water jacket more than water hole on the air inlet side cylinder cap on the exhaust side cylinder cap.The advantage of comparing with the prior art scheme is the restriction that has overcome the jacket structure for water of high reinforcing degree diesel engine, prevents that not only stagnant regions from occurring, and promptly prevents the appearance of cavitation phenomenon, and good cooling results, prolongs the life-span of diesel engine.
Below with reference to drawings and Examples, the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the D structure schematic representation of cylinder of diesel engine water jacket.
Fig. 2 be Fig. 1 plan view.
Fig. 3 is an A-A cross-sectional view among Fig. 2.The cross section of signal water jacket.
Fig. 4 is the right elevation of Fig. 2, signal water jacket ear end face.
Fig. 5 distributes schematic representation for the water jacket coolant flow.
Embodiment
Further, for the flow direction and the flow velocity of adjusting cooling liquid in the water jacket, the water hole is more than water hole on the air inlet side cylinder cap on the described exhaust side cylinder cap.
As shown in Figure 5, by engineering analysis and verification experimental verification, the utility model is a kind of cooling jacket structure of high reinforcing degree diesel engine, comprise the water pump water inlet, air inlet side water jacket, water hole on the air inlet side cylinder cap, the exhaust side water jacket, exhaust side cylinder cap water hole, water hole in oblique water hole, bridge of the nose district and the bridge of the nose district. by going up the control of the size in water hole on jacket structure for water and the head gasket, make cooling liquid as much as possible according to desirable flow direction and reach desirable flow distribution. concrete flow is: (remaining cooling liquid is used for the cooling of machine oil to the cooling liquid of 86.5%-89.5%, without cylinder body water jacket) enter water supply transition zone 2 by water pump water supply hole 1, cooling liquid along water jacket 47.5%-48.5% enters exhaust side water jacket 8 by water jacket front end 11, remaining cooling liquid enters cooling liquid that air inlet side water jacket 5. enters air inlet side water jacket to be had about 7.5%-8% and enters the cylinder head cooling water cover by water hole 3 on the air inlet side cylinder cap, and the cooling liquid of 2.5%-3% arrives water hole 7 in the bridge of the nose districts by oblique water hole 4, bridge of the nose district; The cooling liquid of 29%-30% enters exhaust side water jacket 8.61%-63% by water jacket rear end 10 cooling liquid enters cylinder cap water jacket (among the figure shown in the B) by water hole 7 in water hole on the exhaust side 6 and the bridge of the nose district. and remaining cooling liquid is by intake 12 inflow exhaust gas recycle coolers (among the figure shown in the A), eliminate sluggish, optimize current. cooling liquid is when walking around 9 places, exhaust side bridge of the nose district, because reducing of cross section (because the water hole is bigger in the bridge of the nose district, for housing structure intensity is considered, reduced the height of water jacket herein), and force water velocity to be accelerated, quicken the speed of circulation of cooling water. force the flow direction of cooling liquid in that the size of leading to water hole on the water jacket of cylinder cap is set on the cylinder pad. the utility model can calculate definite according to assignment of traffic when concrete flow passage structure size design with engineering fluid mechanics. that is to say, on the described exhaust side in water hole 6 and the bridge of the nose district flow sum structure in water hole 7 account for the 61%-63% total discharge.
Claims (4)
1. diesel engine cylinder body jacket structure for water, it comprises and is arranged on the circular cylinder water jacket that is encircled into by water jacket rear end (10), water jacket front end (11), air inlet side water jacket (5) and exhaust side water jacket (8) between cylinder block and the cylinder liner, water hole (3) on water pump water supply hole (1), water supply transition region (2) and the one group of air inlet side cylinder cap is arranged on the described air inlet side water jacket (5), water hole (6) on one group of exhaust side cylinder cap, one group of exhaust side bridge of the nose district (9) are arranged on the described exhaust side water jacket (8); It is characterized in that: be provided with in exhaust side bridge of the nose district (9) water hole (7) on the bridge of the nose district cylinder cap, water hole (7) connects by oblique water pipe in bridge of the nose district (4) and air inlet side water jacket (5) on the described bridge of the nose district cylinder cap.
2. diesel engine cylinder body jacket structure for water according to claim 1 is characterized in that: cooler for recycled exhaust gas intake (12) and water jacket rear end cylinder muscle (13) are set in exhaust side bridge of the nose district (9).
3. diesel engine cylinder body jacket structure for water according to claim 1 and 2 is characterized in that: the water hole is more than water hole on the air inlet side cylinder cap on the described exhaust side cylinder cap.
4. diesel engine cylinder body jacket structure for water according to claim 1 is characterized in that: the flow sum structure of water hole (7) accounts for the 61%-63% total discharge in water hole on the described exhaust side (6) and the bridge of the nose district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328855U CN201461114U (en) | 2009-06-18 | 2009-06-18 | Water jacket structure of cylinder block of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328855U CN201461114U (en) | 2009-06-18 | 2009-06-18 | Water jacket structure of cylinder block of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461114U true CN201461114U (en) | 2010-05-12 |
Family
ID=42388468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201328855U Expired - Fee Related CN201461114U (en) | 2009-06-18 | 2009-06-18 | Water jacket structure of cylinder block of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461114U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678368A (en) * | 2012-05-28 | 2012-09-19 | 长城汽车股份有限公司 | Engine |
| CN102877931A (en) * | 2012-10-12 | 2013-01-16 | 辽宁星际动力总成有限公司 | Turbo supercharged engine |
| CN106870196A (en) * | 2015-12-14 | 2017-06-20 | 现代自动车株式会社 | For the water jacket of cylinder block |
| CN107044356A (en) * | 2016-12-30 | 2017-08-15 | 广西玉柴机器股份有限公司 | The jacket structure for water of the valve diesel of four cylinder two |
| CN107199312A (en) * | 2017-07-13 | 2017-09-26 | 广西玉柴机器股份有限公司 | The quick cast and manufacturing process of integrated cylinder cap |
| CN110836138A (en) * | 2018-08-17 | 2020-02-25 | 北汽福田汽车股份有限公司 | Engine cooling system, engine and vehicle |
| CN110886645A (en) * | 2018-09-11 | 2020-03-17 | 丰田自动车株式会社 | Internal combustion engine body |
-
2009
- 2009-06-18 CN CN2009201328855U patent/CN201461114U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678368A (en) * | 2012-05-28 | 2012-09-19 | 长城汽车股份有限公司 | Engine |
| CN102678368B (en) * | 2012-05-28 | 2015-09-23 | 长城汽车股份有限公司 | Motor |
| CN102877931A (en) * | 2012-10-12 | 2013-01-16 | 辽宁星际动力总成有限公司 | Turbo supercharged engine |
| CN106870196A (en) * | 2015-12-14 | 2017-06-20 | 现代自动车株式会社 | For the water jacket of cylinder block |
| CN106870196B (en) * | 2015-12-14 | 2020-06-16 | 现代自动车株式会社 | Water jacket for cylinder block |
| CN107044356A (en) * | 2016-12-30 | 2017-08-15 | 广西玉柴机器股份有限公司 | The jacket structure for water of the valve diesel of four cylinder two |
| CN107199312A (en) * | 2017-07-13 | 2017-09-26 | 广西玉柴机器股份有限公司 | The quick cast and manufacturing process of integrated cylinder cap |
| CN107199312B (en) * | 2017-07-13 | 2023-05-09 | 广西玉柴机器股份有限公司 | Rapid casting and forming method of integrated cylinder cover |
| CN110836138A (en) * | 2018-08-17 | 2020-02-25 | 北汽福田汽车股份有限公司 | Engine cooling system, engine and vehicle |
| CN110886645A (en) * | 2018-09-11 | 2020-03-17 | 丰田自动车株式会社 | Internal combustion engine body |
| CN110886645B (en) * | 2018-09-11 | 2022-03-18 | 丰田自动车株式会社 | Internal combustion engine body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130618 |