CN104975931A - Whole-sealing internal circulation water cooling structure of motorcycle water-cooled engine - Google Patents
Whole-sealing internal circulation water cooling structure of motorcycle water-cooled engine Download PDFInfo
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- CN104975931A CN104975931A CN201510368387.0A CN201510368387A CN104975931A CN 104975931 A CN104975931 A CN 104975931A CN 201510368387 A CN201510368387 A CN 201510368387A CN 104975931 A CN104975931 A CN 104975931A
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Abstract
The invention discloses a whole-sealing internal circulation water cooling structure of a motorcycle water-cooled engine. The whole-sealing internal circulation water cooling structure comprises a cylinder body and a cylinder head, the cylinder body and the cylinder head are provided with cooling water channels communicated with each other, the cylinder head is provided with the upper half portion of a combustion chamber, the cylinder body is provided with the lower half portion of the combustion chamber, the combustion chamber is surrounded by the cooling water channels in the cylinder body and the cylinder head, the combined faces of the cylinder head and the cylinder body are sealed through an a sealing gasket and are provided with annular grooves respectively, the annular groove in the cylinder body is located between the lower half portion of the combustion chamber and the cooling water channel in the cylinder body, the annular groove in the cylinder head is located between the upper half portion of the combustion chamber and the cooling water channel in the cylinder head, the combined faces of the cylinder head and the cylinder body are provided with gas release grooves respectively, one end of each gas release groove is communicated with the corresponding annular groove, and the other end of each gas release groove is communicated with external atmosphere. By means of the whole-sealing internal circulation water cooling structure, fuel gas can be prevented from entering a water cooling circulation system, the total amount of cooling water in the water cooling circulation system is stable, and the normal working of the engine is ensured.
Description
Technical field
The present invention relates to cooling engine for motor cycle water field, particularly relate to a kind of totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water.
Background technique
Existing cooling motorcycle engine water generally adopts closed circulation system, and namely cooling water is at a closed space Inner eycle, cooled engine.During engine operation, pressure in the circulatory system is change, when pressure reaches a setting value, cooling water in the circulatory system can enter secondary water tank by an one-way valve, otherwise, when the pressure in the circulatory system reduces to a certain extent, the cooling water in secondary water tank can be filled in the circulatory system by another one-way valve.Like this, the cooling water in the circulatory system remains certain pressure and amount, ensures the reliability of cooling.During engine work, between the circulatory system and secondary water tank, this exchange capacity of cooling water is less, and thus the design volume of secondary water tank is also very limited.
Existing cooling motorcycle engine water, seals with a gasket seal between cylinder head and cylinder body, and this sealing gasket should high temperature, the high-pressure gas of sealing combustion indoor, seals the cooling water in cylinder head and cylinder block passage again, as shown in Figure 1.Because the reliability of same sealing gasket sealing high temperature, high-pressure gas is lower than the reliability of sealing cooling water, therefore, gas leakage in reality and situation that cooling water does not leak happens occasionally.A small amount of gas leakage affects the power performance of motor hardly, therefore, for air cooling engine, can not with comprehend, but for water cooled engine, the combustion gas of a small amount of leakage constantly can enter water-cooling circulating system, the pressure in water-cooling circulating system is raised, finally makes cooling water constantly enter secondary water tank.Due to the finite capacity of secondary water tank, when cooling water acquires a certain degree, can overflow from the vent of secondary water tank, like this, the cooling water in water-cooling circulating system can constantly reduce, and cooling effect is deteriorated, and motor cannot normally can work or damage because of overheated.Therefore, existing structure requires higher to component workmanship, assembly quality and gasket material, and not easily management and control in production in enormous quantities, exists certain risk.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water is provided.It can prevent combustion gas from entering in water-cooling circulating system, the cooling water total amount in water-cooling circulating system is stablized, ensures engine work.
The object of the present invention is achieved like this:
A kind of totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water, comprise the cylinder body of cooling engine for motor cycle water, cylinder head, described cylinder body, cylinder head is respectively equipped with cooling water channel, cooling water channel on cylinder body, cooling water channel on cylinder head is connected, the side of described cylinder body or cylinder head is provided with water intake, this water intake is communicated with corresponding cooling water channel, the side of described cylinder head is provided with water outlet, this water outlet is communicated with the cooling water channel on cylinder head, the bottom of described cylinder head is provided with upper half part of firing chamber, the top of described cylinder body is provided with lower half portion of firing chamber, cooling water channel on described cylinder body surrounds lower half portion of firing chamber, cooling water channel on described cylinder head surrounds upper half part of firing chamber, cylinder body, sealed by sealing gasket between the junction plane of cylinder head, described cylinder body, the junction plane of cylinder head is respectively equipped with a circular groove, circular groove on described cylinder body is between the cooling water channel in lower half portion and cylinder body of firing chamber, circular groove on described cylinder head is between the cooling water channel in upper half part and cylinder head of firing chamber, described cylinder body, the junction plane of cylinder head is respectively equipped with a disappointing groove, one end of each disappointing groove is communicated with corresponding circular groove, the other end is communicated with outside atmosphere.
In order to form cooling water circulation, preferably, also comprise cooling waterpump, radiator, secondary water tank, the first water-cooling tube, the second water-cooling tube, the 3rd water-cooling tube, the waterexit end of described cooling waterpump is communicated with described water intake by described first water-cooling tube, the feed-water end of described radiator is communicated with described water outlet by described second water-cooling tube, and the waterexit end of described radiator is communicated with the feed-water end of cooling waterpump by described 3rd water-cooling tube.
Certain pressure and amount is remained in order to make the cooling water in the circulatory system, ensure the reliability of cooling, preferably, described radiator is equipped with radiator pressure cap, radiator pressure cap is provided with the contrary one-way valve of both direction, and each one-way valve regulates water pipe to be communicated with secondary water tank respectively by one.
In order to make the cooling water channel on cylinder body, the cooling water channel on cylinder head is connected, simultaneously, the making space of disappointing groove is provided, the junction plane of described cylinder body, cylinder head is equipped with some successive watercourse respectively, some successive watercourse on cylinder body, cylinder head are mutually corresponding, successive watercourse on described cylinder body is communicated with the cooling water channel on cylinder body, on described cylinder head, successive watercourse is communicated with the cooling water channel on cylinder head, described each disappointing slot is between corresponding any two adjacent successive watercourse, and it is corresponding with each successive watercourse that described sealing gasket is provided with some cooling water passing hole.
Owing to have employed technique scheme, the present invention has following beneficial effect:
1. the combustion gas owing to leaking in firing chamber can enter air by circular groove, the groove that loses heart successively, can prevent the combustion gas in firing chamber from entering in cooling recirculation system and the pressure in the circulatory system is raised, therefore, cooling water can not be got into secondary water tank by combustion gas, ensure that the cooling water total amount in the circulatory system is stablized, cooling effect is protected, and motor cannot normally can not work or damage because of overheated.
2., because this structure makes combustion gas not enter in cooling recirculation system again, the requirement of the workmanship of cylinder body, cylinder head, assembly quality and gasket material is reduced, so water cooled engine entirety reduce fabricating cost.
3. motor does not increase outside connecting water pipe, structure is more simple, compact, and the installing space of needs is less, and fabricating cost is lower.
Accompanying drawing explanation
Fig. 1 is the water-cooling structure of existing cooling engine for motor cycle water;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the schematic top plan view of cylinder body in Fig. 2.
Reference character
In accompanying drawing, 1 is cylinder body, and 2 is cylinder head, and 3 is cooling water channel, 4 is water intake, and 5 is water outlet, and 6 is firing chamber, 7 is sealing gasket, and 8 is circular groove, and 9 is the groove that loses heart, 10 is cooling waterpump, and 11 is radiator, and 12 is secondary water tank, 13 is the first water-cooling tube, and 14 is the second water-cooling tube, and 15 is the 3rd water-cooling tube, 16 for regulating water pipe, and 17 is junction plane, and 18 is successive watercourse.
Embodiment
See Fig. 2, Fig. 3, for a kind of preferred embodiment of the totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water, comprise the cylinder body 1 of cooling engine for motor cycle water, cylinder head 2, cylinder body 1, cylinder head 2 is bolted to connection, described cylinder body 1, cylinder head 2 is respectively equipped with cooling water channel 3, cooling water channel 3 on cylinder body 1, cooling water channel 3 on cylinder head 2 is connected, the side of described cylinder body 1 is provided with water intake 4, this water intake 4 is communicated with the cooling water channel 3 on cylinder body 1, the side of described cylinder head 2 is provided with water outlet 5, this water outlet 5 is communicated with the cooling water channel 3 on cylinder head 2, water intake 4, the position of water outlet 5 is contrary.Certainly, described water intake 4 also can be arranged on the side of cylinder head 2.The bottom of described cylinder head 2 is provided with upper half part of firing chamber 6, the top of described cylinder body 1 is provided with lower half portion of firing chamber 6, in order to fully cool around firing chamber 6, promote the cooling effect to motor, cooling water channel 3 on described cylinder body 1 surrounds lower half portion of firing chamber 6, cooling water channel 3 on described cylinder head 2 surrounds upper half part of firing chamber 6, is sealed, form the sealing to firing chamber between the junction plane 17 of cylinder body 1, cylinder head 2 by sealing gasket 7.The junction plane 17 of described cylinder body 1, cylinder head 2 is respectively equipped with a circular groove 8, between cooling water channel 3 on lower half portion in firing chamber 6 of circular groove 8 on described cylinder body 1 and cylinder body 1, between cooling water channel 3 on upper half part in firing chamber 6 of circular groove 8 on described cylinder head 2 and cylinder head 2, the junction plane 17 of described cylinder body 1, cylinder head 2 is respectively equipped with a disappointing groove 9, one end of each disappointing groove 9 is communicated with corresponding circular groove 8, and the other end is communicated with outside atmosphere.In the present embodiment, the junction plane 17 of described cylinder body 1, cylinder head 2 is equipped with some successive watercourse 18 respectively, some successive watercourse 18 on cylinder body 1, cylinder head 2 are mutually corresponding, successive watercourse 18 on described cylinder body 1 is communicated with the cooling water channel 3 on cylinder body 1, on described cylinder head 2, successive watercourse 18 is communicated with the cooling water channel 3 on cylinder head 2, described each disappointing groove 9 is between corresponding any two adjacent successive watercourse 18, and it is corresponding with each successive watercourse 18 that described sealing gasket 7 is provided with some cooling water passing hole.Certainly, the cooling water channel 3 on cylinder body 1, cylinder head 2 also can be set to water annulus, the junction plane of cylinder body 1, cylinder head 2 arranges assembly department respectively and is cut off by water annulus, and the groove 9 that loses heart two is arranged on corresponding assembly department.
Also comprise cooling waterpump 10, radiator 11, secondary water tank 12, first water-cooling tube 13, second water-cooling tube 14, 3rd water-cooling tube 15, described cooling waterpump 10 is bolted on cylinder head 2, and be connected with the camshaft power of water cooled engine, the waterexit end of described cooling waterpump 10 is communicated with the water intake 4 of described cylinder body 1 by described first water-cooling tube 13, the feed-water end of described radiator 11 is communicated with the water outlet 5 of described cylinder head 2 by described second water-cooling tube 14, the waterexit end of described radiator 11 is communicated with the feed-water end of cooling waterpump 10 by described 3rd water-cooling tube 15, the water outlet of described cylinder head is provided with thermostat.Described radiator 11 is equipped with radiator pressure cap (not shown), and radiator pressure cap is provided with the contrary one-way valve (not shown) of both direction, and each one-way valve regulates water pipe 16 to be communicated with secondary water tank 12 respectively by one.The camshaft of cooling engine for motor cycle water is positioned at upper position of engine, and the close together between cooling waterpump, can directly be connected with cooling waterpump, structure is more compact, the cooling structure of cooling engine for motor cycle water is all positioned at top or the sidepiece of motor, do not prolong and the bottom of motor, therefore, cooling water flow path is short, the cooling structure of cooling engine for motor cycle water is more simple, compact, simultaneously, accelerate the flow velocity of cylinder block passage inner cooling water, avoid localized hyperthermia, make whole temperature field more even, good heat dissipation effect, can preferably to cylinder body, cylinder head cools, can use on comparatively large-duty engine.
After motor runs, when the set temperature is reached, thermostat is opened, cooling water starts major cycle, the cooling water pumped by the shaft-driven water pump of cylinder head overhead cam, the first water-cooling tube is entered by water pump cover, enter the ozzle formula water intake on cylinder body again, enter cylinder block cooling water road successively, in cylinder head cooling water channel, then by the ozzle formula water outlet on cylinder head, second water-cooling tube inflow radiator, take away heat, play the effect of cooling, last cooling water is communicated with the feed-water end of cooling waterpump by the 3rd water-cooling tube, form the water cooling labyrinth of cooling engine for motor cycle water.
What finally illustrate is, above preferred embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (4)
1. the totally-enclosed Inner eycle water-cooling structure of a cooling engine for motor cycle water, comprise the cylinder body of cooling engine for motor cycle water, cylinder head, described cylinder body, cylinder head is respectively equipped with cooling water channel, cooling water channel on cylinder body, cooling water channel on cylinder head is connected, the side of described cylinder body or cylinder head is provided with water intake, this water intake is communicated with corresponding cooling water channel, the side of described cylinder head is provided with water outlet, this water outlet is communicated with the cooling water channel on cylinder head, the bottom of described cylinder head is provided with upper half part of firing chamber, the top of described cylinder body is provided with lower half portion of firing chamber, cooling water channel on described cylinder body surrounds lower half portion of firing chamber, cooling water channel on described cylinder head surrounds upper half part of firing chamber, cylinder body, sealed by sealing gasket between the junction plane of cylinder head, it is characterized in that: described cylinder body, the junction plane of cylinder head is respectively equipped with a circular groove, circular groove on described cylinder body is between the cooling water channel in lower half portion and cylinder body of firing chamber, circular groove on described cylinder head is between the cooling water channel in upper half part and cylinder head of firing chamber, described cylinder body, the junction plane of cylinder head is respectively equipped with a disappointing groove, one end of each disappointing groove is communicated with corresponding circular groove, the other end is communicated with outside atmosphere.
2. the totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water according to claim 1, it is characterized in that: also comprise cooling waterpump, radiator, secondary water tank, the first water-cooling tube, the second water-cooling tube, the 3rd water-cooling tube, the waterexit end of described cooling waterpump is communicated with described water intake by described first water-cooling tube, the feed-water end of described radiator is communicated with the water outlet of described cylinder head by described second water-cooling tube, and the waterexit end of described radiator is communicated with the feed-water end of cooling waterpump by described 3rd water-cooling tube.
3. the totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water according to claim 2, it is characterized in that: described radiator is equipped with radiator pressure cap, radiator pressure cap is provided with the contrary one-way valve of both direction, and each one-way valve regulates water pipe to be communicated with secondary water tank respectively by one.
4. the totally-enclosed Inner eycle water-cooling structure of cooling engine for motor cycle water according to claim 1, it is characterized in that: the junction plane of described cylinder body, cylinder head is respectively equipped with some successive watercourse, some successive watercourse on cylinder body, cylinder head are mutually corresponding, successive watercourse on described cylinder body is communicated with the cooling water channel on cylinder body, on described cylinder head, successive watercourse is communicated with the cooling water channel on cylinder head, described each disappointing slot is between corresponding any two adjacent successive watercourse, and it is corresponding with each successive watercourse that described sealing gasket is provided with some cooling water passing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368387.0A CN104975931B (en) | 2015-06-29 | 2015-06-29 | The totally-enclosed interior recirculated water cooling structure of cooling engine for motor cycle water |
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| CN201510368387.0A CN104975931B (en) | 2015-06-29 | 2015-06-29 | The totally-enclosed interior recirculated water cooling structure of cooling engine for motor cycle water |
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| CN104975931A true CN104975931A (en) | 2015-10-14 |
| CN104975931B CN104975931B (en) | 2018-04-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246395A (en) * | 2016-08-01 | 2016-12-21 | 周家全 | A kind of cylinder block cooling system and process thereof |
| CN106640319A (en) * | 2015-11-04 | 2017-05-10 | 盐城市明天机械有限公司 | Cyclic cooling structure of diesel engine body |
| CN107701323A (en) * | 2017-09-22 | 2018-02-16 | 力帆实业(集团)股份有限公司 | Cooling engine for motor cycle water air cylinder head structure |
| CN107725208A (en) * | 2017-09-22 | 2018-02-23 | 力帆实业(集团)股份有限公司 | Cooling engine for motor cycle water |
| CN108757201A (en) * | 2018-06-29 | 2018-11-06 | 力帆实业(集团)股份有限公司 | A kind of motorcycle engine coolant circulation system and engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343837A (en) * | 1993-07-27 | 1994-09-06 | Caterpillar Inc. | Cylinder head sealing system and method |
| US6293245B1 (en) * | 2000-01-12 | 2001-09-25 | Caterpillar Inc. | Sealing-fail safe leakage control in a cylinder head joint |
| CN1651729A (en) * | 2004-02-04 | 2005-08-10 | 光阳工业股份有限公司 | Water cooling device of engine cylinder head |
| CN203022903U (en) * | 2012-12-17 | 2013-06-26 | 安徽华菱汽车有限公司 | Water cooling engine and cylinder covers of water cooling engine |
| CN103670657A (en) * | 2012-09-13 | 2014-03-26 | 北京汽车动力总成有限公司 | Engine cooling system, engine and vehicle |
| CN203769918U (en) * | 2014-01-27 | 2014-08-13 | 江苏宗申三轮摩托车制造有限公司 | Double-effect cooling system and right three-wheeled motorcycle |
-
2015
- 2015-06-29 CN CN201510368387.0A patent/CN104975931B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343837A (en) * | 1993-07-27 | 1994-09-06 | Caterpillar Inc. | Cylinder head sealing system and method |
| US6293245B1 (en) * | 2000-01-12 | 2001-09-25 | Caterpillar Inc. | Sealing-fail safe leakage control in a cylinder head joint |
| CN1651729A (en) * | 2004-02-04 | 2005-08-10 | 光阳工业股份有限公司 | Water cooling device of engine cylinder head |
| CN103670657A (en) * | 2012-09-13 | 2014-03-26 | 北京汽车动力总成有限公司 | Engine cooling system, engine and vehicle |
| CN203022903U (en) * | 2012-12-17 | 2013-06-26 | 安徽华菱汽车有限公司 | Water cooling engine and cylinder covers of water cooling engine |
| CN203769918U (en) * | 2014-01-27 | 2014-08-13 | 江苏宗申三轮摩托车制造有限公司 | Double-effect cooling system and right three-wheeled motorcycle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640319A (en) * | 2015-11-04 | 2017-05-10 | 盐城市明天机械有限公司 | Cyclic cooling structure of diesel engine body |
| CN106246395A (en) * | 2016-08-01 | 2016-12-21 | 周家全 | A kind of cylinder block cooling system and process thereof |
| CN107701323A (en) * | 2017-09-22 | 2018-02-16 | 力帆实业(集团)股份有限公司 | Cooling engine for motor cycle water air cylinder head structure |
| CN107725208A (en) * | 2017-09-22 | 2018-02-23 | 力帆实业(集团)股份有限公司 | Cooling engine for motor cycle water |
| CN107725208B (en) * | 2017-09-22 | 2024-02-27 | 力帆实业(集团)股份有限公司 | Water-cooled engine for motorcycle |
| CN107701323B (en) * | 2017-09-22 | 2024-03-01 | 力帆实业(集团)股份有限公司 | Cylinder head structure of motorcycle water-cooled engine |
| CN108757201A (en) * | 2018-06-29 | 2018-11-06 | 力帆实业(集团)股份有限公司 | A kind of motorcycle engine coolant circulation system and engine |
| CN108757201B (en) * | 2018-06-29 | 2019-10-29 | 力帆实业(集团)股份有限公司 | A kind of motorcycle engine coolant circulation system and engine |
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| CN104975931B (en) | 2018-04-20 |
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Effective date of registration: 20151103 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Applicant after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: 400054 Huaxi Industrial Park, Banan District, Chongqing Road, No. 1 Applicant before: Chongqing Jianshe Motorcycle Co., Ltd. |
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