CN103615333A - Engine cylinder block water jacket - Google Patents
Engine cylinder block water jacket Download PDFInfo
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- CN103615333A CN103615333A CN201310674214.2A CN201310674214A CN103615333A CN 103615333 A CN103615333 A CN 103615333A CN 201310674214 A CN201310674214 A CN 201310674214A CN 103615333 A CN103615333 A CN 103615333A
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Abstract
The invention relates to an engine cylinder block water jacket which comprises a cylinder block water jacket main body and a cylinder head water jacket main body. A cooling circulation system comprises a small circulating cooling system and a large circulating cooling system. The cylinder block water jacket main body is divided into an exhaust side cylinder block water jacket body and an air intake side cylinder block water jacket body through two opposite partition plates, the exhaust side cylinder block water jacket body is not communicated with the air intake side cylinder block water jacket body, an internally-installed water jacket body is arranged on the periphery of the outer side of the lower portion of the cylinder block water jacket main body, the inlet of the internally-installed water jacket body is connected with a water outlet of the cylinder block water jacket main body, and a water outlet of the internally-installed water jacket body is connected with a thermostat. The problem that four cylinders of an engine are poor in cooling effect is solved, meanwhile the number of water jacket bodies is reduced, heating of the engine can be quickened, requirements of a water pump for performance can also be reduced, and power consumption of the engine is reduced.
Description
Technical field
The invention belongs to engine art, specifically refer to a kind of cylinder body water jacket of engine.
Background technique
Engine-cooling system is pressed and delivered to engine water jacket by water pump by cooling liquid at present, and cooling liquid is carried out cooling to motor in the mode of thermoconvection by engine water jacket.By the cooling liquid of engine water jacket, different according to engine water outlet, the parts of different demands are carried out to cooling or heating, wherein the cooling liquid of most of cooled engine enters car load radiator, by radiator and extraneous temperature of carrying out heat exchange reduction cooling liquid, cooling liquid after cooling and the cooling liquid of other passages are collected and are entered water pump, thereby realize cool cycles.
Along with the raising of engine technology level, the cylinder body of motor is also in continuous lightweight, and the lightweight of cylinder body must cause the cylinder body water jacket degree of depth to shoal, and impels the cooling pressure of cylinder body increasing, need to design the water jacket of brand new.
The type of cooling of existing motor has following two kinds substantially:
A kind of, cooling liquid after supercharging, enters the cylinder body water jacket of motor in water pump through distributed water pipe.Cooling liquid around flows through and heats up from water jacket wall heat absorption from water jacket wall.Then upwards flow into cylinder head jacket, after the heat absorption of cylinder head water jacket wall, through thermostat, as lower in the temperature of cooling liquid, at this moment thermostat flows to cooling liquid the pathway closure of radiator, makes the cooling water pump that directly returns; As higher in the temperature of cooling liquid, the passage that at this moment thermostat flows to radiator by cooling liquid is opened, and cooling liquid is through hose, radiator inlet inflow radiator.In radiator, cooling liquid is lowered the temperature to flowing through the heat radiation of radiator ambient air, and last cooling liquid is returned to water pump through radiator outlet hoese.
On the cylinder body water jacket of engine of this structure, only arrange water intake, and water outlet is generally arranged on cylinder cap, so just need to cooling liquid be incorporated into water pump by pipeline, then reenter cylinder body water jacket, such design, had both been unfavorable for the fast rise of water temperature when motor has just started needing again to arrange pipeline, increase layout difficulty and the cost of motor, simultaneously the improper risk that also has leakage of line arrangement.
Another kind is that cooling liquid after supercharging, enters cylinder body water jacket through distributed water pipe from the air inlet side of motor in water pump.Cooling liquid around flows through from the water jacket wall of air inlet side, and heats up from water jacket wall heat absorption.Then upwards flow into cylinder cover water jacket, after the heat absorption of cylinder head water jacket wall, flow into cylinder body water jacket exhaust side, then from side of cylinder block, flow into air inlet side, through thermostat, as lower in the temperature of cooling liquid, at this moment thermostat flows to cooling liquid the pathway closure of radiator, makes the cooling water pump that directly returns; As higher in the temperature of cooling liquid, the passage that at this moment thermostat flows to radiator by cooling liquid is opened, and cooling liquid is through hose, radiator inlet inflow radiator.In radiator, cooling liquid is lowered the temperature to flowing through the heat radiation of radiator ambient air, and last cooling liquid is returned to water pump through radiator outlet hoese.
In this structure cylinder body water jacket adjacent with cylinder body body front end cylinder hole, be provided with front water jacket partition, in the cylinder body water jacket adjacent with cylinder hole, cylinder body body rear end, be provided with rear water jacket partition, front water jacket partition and rear water jacket partition are divided into water inlet portion and water part part by cylinder body water jacket.
The water intake of cylinder body water jacket is arranged in air inlet side, compares the type of cooling of the first, and cooling liquid can heat up relatively rapidly, but cooling liquid is introduced into air inlet side, and air inlet side temperature is lower with respect to exhaust side temperature.If water intake is arranged in to exhaust side, can also improve faster warming velocity.
The shortcoming of this type of cooling is, because water intake is arranged in air inlet side, water jacket partition is provided with two or more apertures, and when guaranteeing that motor has just started, cooling liquid can enter exhaust side by this aperture, guarantees the cooling of now cylinder body and piston assembly.Now water jacket partition from water outlet very close to, after current are flowed through from rear water jacket partition, directly from water outlet, flow out, do not play cooling effect.
Summary of the invention
The object of the invention is in order to solve the poor problem of motor four cylinder cooling effect, reducing of water jacket, not only can accelerate warming-up simultaneously, also can reduce pump performance requirement, reduces motor power consumption.
The present invention is achieved by the following technical solutions:
A cylinder body water jacket of engine, includes cylinder body water jacket and cylinder cover water jacket; Described cooling recirculation system includes short circle cooling system and major cycle cooling system; Described cylinder body water jacket by with respect to two baffle for separatings become disconnected exhaust side cylinder body water jacket and air inlet side cylinder body water jacket; Lower outside periphery at cylinder body water jacket is provided with a built-in water jacket; The entrance of described built-in water jacket is connected with the water outlet of cylinder body water jacket, and the water outlet of described built-in water jacket is connected with thermostat;
Short circle cooling system is by short circle water inlet, to enter cylinder body exhaust side water jacket after cooling liquid is pressurizeed by water pump, flow to the exhaust side water jacket of cylinder cap, cooling water is flowed to the air inlet side water jacket of cylinder cap in cylinder cap by exhaust side, by the air inlet side water jacket of cylinder cap, flowed into again the air inlet side water jacket of cylinder body, by air inlet side water outlet, enter built-in water jacket, water outlet by built-in water jacket enters into thermostat, and now thermostat is directly connected with water pump, completes short circle cooling system;
Major cycle cooling system is, thermostat is opened major cycle cooling water channel, close short circle cooling water channel, cooling liquid enters exhaust side cylinder body water jacket after water pump pressurization, exhaust side cylinder body water jacket upwards flows into cylinder cap exhaust side water jacket, cooling liquid is from cylinder cap exhaust side water jacket flows to cylinder cap air inlet side water jacket, flow to cylinder body air inlet side water jacket, and flow to built-in water jacket through the water outlet of cylinder body air inlet side water jacket, built-in water jacket water outlet enters into thermostat, thermostat is communicated with radiator, cooling liquid after heat radiation flow back into the temperature-conserving valve seat of cylinder body exhaust side, enter water pump, complete the major cycle of cooling system.
Described water pump and the integrated setting of thermostat valve seat, and be arranged at the exhaust side of engine block.
Two dividing plates in described cylinder body water jacket are for being relatively symmetrical arranged, and can be also the volumes that the volume of the cylinder body exhaust side water jacket of two baffle for separatings is greater than cylinder body air inlet side water jacket.
Cylinder body water outlet coordinates cylinder body precast hole to form pipeline with built-in water jacket water inlet by aluminum casting.
The invention has the beneficial effects as follows:
1, cylinder body water jacket is divided into intake and exhaust two-part, and cooling liquid is coolant exhaust side first, has solved the poor problem of traditional cylinder body water jacket four cylinder cooling effect.
2, cylinder body water jacket is divided into intake and exhaust two-part, and cylinder body and cylinder cover water jacket volume can farthest reduce, and accelerates warm-up period.
3, reducing of water jacket, reduces pump performance requirement, reduces motor power consumption.
4, after cylinder body water jacket water outlet, at the opposite side of water intake, therefore need to guide cooling water into exhaust side from air inlet side, by brief built-in water jacket, realize, thereby reduced the layout of exterior line.
Accompanying drawing explanation
Fig. 1 is the block diagram of cylinder body water jacket of engine of the present invention.
Fig. 2 is the cylinder body water jacket structural representation of motor of the present invention.
Embodiment
Describe by the following examples technological scheme of the present invention in detail, should be understood that, following examples are only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not to be interpreted as are the restrictions to technical solution of the present invention.
In the present embodiment, all the other cooling circuits of engine-cooling system, as cooling in pressurized machine, oil cooler is cooling etc. is all conventional cooling, has not just described.
As depicted in figs. 1 and 2, water pump 10 and thermostat valve seat Integrated design, be arranged on the body exhaust side 1 of motor.Cooling liquid, after water pump pressurization, enters body exhaust side water jacket from water pump water inlet.
In the cylinder body water jacket 6 of motor, be provided with two dividing plates 9, cylinder body water jacket 6 is separated into independently cylinder body exhaust side water jacket and cylinder body air inlet side water jacket.Two dividing plates in cylinder body water jacket are for being relatively symmetrical arranged, and can be also the volumes that the volume of the cylinder body exhaust side water jacket of two baffle for separatings is greater than cylinder body air inlet side water jacket.Described dividing plate is the cold rolled stainless steel sheet with knuckle.
Lower outside at cylinder body water jacket 6, typically refer to the first cylinder body of four cylinder engine machine or the outer lower portion of the 4th cylinder body and be provided with a built-in water jacket 8 being structure as a whole with cylinder body 5, the water inlet of built-in water jacket 8 coordinates cylinder body precast hole to form pipeline 7 with cylinder body water outlet 13 by aluminum casting and connects, and the water outlet of built-in water jacket 8 is connected with thermostat 11 by pipeline.In other embodiments of the invention, built-in water jacket also can be structure as a whole by different engine cylinder-bodies.
Cooling liquid enters cylinder cover water jacket 2 exhaust sides in the rear cooling liquid of cooling whole body exhaust side 1, flows over and enter body air inlet side water jacket to cylinder cap 3 air inlet sides 4.At this moment cooling system includes two circulatory systems, i.e. short circle cooling system and major cycle cooling system.
Short circle cooling system is by short circle water inlet 14, to enter cylinder body exhaust side water jacket after cooling liquid is pressurizeed by water pump 10, flow to the exhaust side water jacket of cylinder cap 3, cooling water is flowed to the air inlet side water jacket of cylinder cap 3 in cylinder cap 3 by exhaust side 1, air inlet side water jacket by cylinder cap flows into cylinder body air inlet side water jacket again, by air inlet side water outlet 13, enter built-in water jacket 8, water outlet by built-in water jacket 8 enters into thermostat 11, and now thermostat is directly connected with water pump, completes short circle cooling system.
Major cycle cooling system is, thermostat 11 is opened major cycle cooling water channel, close short circle cooling water channel, cooling liquid enters exhaust side cylinder body water jacket after water pump 10 pressurizations, exhaust side cylinder body water jacket upwards flows into cylinder cap exhaust side water jacket, cooling liquid is from cylinder cap exhaust side water jacket flows to cylinder cap air inlet side water jacket, flow to cylinder body air inlet side water jacket, and flow to built-in water jacket 8 through the water outlet 13 of cylinder body air inlet side water jacket, built-in water jacket 8 water outlets enter into thermostat 11, thermostat 11 is communicated with radiator 12, cooling liquid after heat radiation flow back into the temperature-conserving valve seat of cylinder body exhaust side, enter water pump 10, complete the major cycle of cooling system.
In the present embodiment, the cooling jacket of cylinder cap also can design separately, and a cooling liquid position important from valve guide bushing, air valve seat ring and firing chamber etc. is around flow through, and has farthest reduced the total measurement (volume) of water jacket, improves cooling effect.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (4)
1. a cylinder body water jacket of engine, is characterized in that: include cylinder body water jacket and cylinder cover water jacket; Described cooling recirculation system includes short circle cooling system and major cycle cooling system; Described cylinder body water jacket by with respect to two baffle for separatings become disconnected exhaust side cylinder body water jacket and air inlet side cylinder body water jacket; Lower outside periphery at cylinder body water jacket is provided with a built-in water jacket; The entrance of described built-in water jacket is connected with the water outlet of cylinder body water jacket, and the water outlet of described built-in water jacket is connected with thermostat;
Short circle cooling system is by short circle water inlet, to enter cylinder body exhaust side water jacket after cooling liquid is pressurizeed by water pump, flow to the exhaust side water jacket of cylinder cap, cooling water is flowed to the air inlet side water jacket of cylinder cap in cylinder cap by exhaust side, by the air inlet side water jacket of cylinder cap, flowed into again the air inlet side water jacket of cylinder body, by air inlet side water outlet, enter built-in water jacket, water outlet by built-in water jacket enters into thermostat, and now thermostat is directly connected with water pump, completes short circle cooling system;
Major cycle cooling system is, thermostat is opened major cycle cooling water channel, close short circle cooling water channel, cooling liquid enters exhaust side cylinder body water jacket after water pump pressurization, exhaust side cylinder body water jacket upwards flows into cylinder cap exhaust side water jacket, cooling liquid is from cylinder cap exhaust side water jacket flows to cylinder cap air inlet side water jacket, flow to cylinder body air inlet side water jacket, and flow to built-in water jacket through the water outlet of cylinder body air inlet side water jacket, built-in water jacket water outlet enters into thermostat, thermostat is communicated with radiator, cooling liquid after heat radiation flow back into the temperature-conserving valve seat of cylinder body exhaust side, enter water pump, complete the major cycle of cooling system.
2. the cooling recirculation system of new structure according to claim 1, is characterized in that: described water pump and the integrated setting of thermostat valve seat, and be arranged at the exhaust side of engine block.
3. the cooling recirculation system of new structure according to claim 1, it is characterized in that: two dividing plates in described cylinder body water jacket are for being relatively symmetrical arranged, can be also the volume that the volume of the cylinder body exhaust side water jacket of two baffle for separatings is greater than cylinder body air inlet side water jacket.
4. according to the cooling recirculation system of the new structure described in claim 1 or 3, it is characterized in that: cylinder body water outlet coordinates cylinder body precast hole to form pipeline with built-in water jacket water inlet by aluminum casting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310674214.2A CN103615333B (en) | 2013-12-10 | 2013-12-10 | Engine cylinder block water jacket |
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| CN201310674214.2A CN103615333B (en) | 2013-12-10 | 2013-12-10 | Engine cylinder block water jacket |
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| CN103615333A true CN103615333A (en) | 2014-03-05 |
| CN103615333B CN103615333B (en) | 2017-01-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454127A (en) * | 2014-11-10 | 2015-03-25 | 上海中船三井造船柴油机有限公司 | Cold corrosion preventing bypass type cooling water system pipeline for cylinder sleeve of diesel engine |
| CN104454214A (en) * | 2014-11-28 | 2015-03-25 | 长城汽车股份有限公司 | Engine cooling system and vehicle |
| CN106988851A (en) * | 2017-05-11 | 2017-07-28 | 广西玉柴动力机械有限公司 | A kind of reverse circulating type cooling structure of engine and the type of cooling |
| CN107956590A (en) * | 2017-11-28 | 2018-04-24 | 东风商用车有限公司 | A kind of engine-cooling system and its cooling means |
| CN114592986A (en) * | 2021-02-09 | 2022-06-07 | 长城汽车股份有限公司 | Engine for vehicle and vehicle |
Citations (5)
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| JPS61237866A (en) * | 1985-04-12 | 1986-10-23 | Mitsubishi Heavy Ind Ltd | Cooling structure of water-cooled type internal-combustion engine |
| JPH0517373Y2 (en) * | 1987-08-25 | 1993-05-11 | ||
| WO2011052041A1 (en) * | 2009-10-27 | 2011-05-05 | トヨタ自動車株式会社 | Internal combustion engine |
| CN202370642U (en) * | 2011-12-16 | 2012-08-08 | 北京汽车动力总成有限公司 | Thermostat seat |
| KR101316338B1 (en) * | 2007-07-18 | 2013-10-08 | 현대자동차주식회사 | Cooling water circulation structure of engine |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237866A (en) * | 1985-04-12 | 1986-10-23 | Mitsubishi Heavy Ind Ltd | Cooling structure of water-cooled type internal-combustion engine |
| JPH0517373Y2 (en) * | 1987-08-25 | 1993-05-11 | ||
| KR101316338B1 (en) * | 2007-07-18 | 2013-10-08 | 현대자동차주식회사 | Cooling water circulation structure of engine |
| WO2011052041A1 (en) * | 2009-10-27 | 2011-05-05 | トヨタ自動車株式会社 | Internal combustion engine |
| CN202370642U (en) * | 2011-12-16 | 2012-08-08 | 北京汽车动力总成有限公司 | Thermostat seat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454127A (en) * | 2014-11-10 | 2015-03-25 | 上海中船三井造船柴油机有限公司 | Cold corrosion preventing bypass type cooling water system pipeline for cylinder sleeve of diesel engine |
| CN104454214A (en) * | 2014-11-28 | 2015-03-25 | 长城汽车股份有限公司 | Engine cooling system and vehicle |
| CN106988851A (en) * | 2017-05-11 | 2017-07-28 | 广西玉柴动力机械有限公司 | A kind of reverse circulating type cooling structure of engine and the type of cooling |
| CN107956590A (en) * | 2017-11-28 | 2018-04-24 | 东风商用车有限公司 | A kind of engine-cooling system and its cooling means |
| CN114592986A (en) * | 2021-02-09 | 2022-06-07 | 长城汽车股份有限公司 | Engine for vehicle and vehicle |
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| Publication number | Publication date |
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| CN103615333B (en) | 2017-01-25 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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