CN202645705U - Cooling system of petrol engine - Google Patents
Cooling system of petrol engine Download PDFInfo
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- CN202645705U CN202645705U CN 201220283704 CN201220283704U CN202645705U CN 202645705 U CN202645705 U CN 202645705U CN 201220283704 CN201220283704 CN 201220283704 CN 201220283704 U CN201220283704 U CN 201220283704U CN 202645705 U CN202645705 U CN 202645705U
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Abstract
The utility model relates to a cooling system of a petrol engine. The cooling system comprises a radiator, a cylinder cover water jacket, a cylinder body water jacket, a water pump and an expansion water tank; the cooling system further comprises a thermosistor valve seat, and a thermosistor is arranged inside the thermosistor valve seat; the thermosistor valve seat is provided with five inlets and an outlet F; a first inlet A is communicated with a launching chamber of the radiator; a second inlet B is communicated with an outlet of a fan heater; a third inlet C is communicated with an outlet of an air damper; a fourth inlet D is communicated with an outlet of a distributive pipe through a minor cycle loop; a fifth inlet E is communicated with the expansion water tank through a water replenishing loop; the outlet F is communicated with a water inlet of the water pump; and the thermosistor is a double valve wax type thermosistor and comprises a main valve and an auxiliary valve, the main valve is mounted at the first inlet A of the thermosistor valve seat, and the auxiliary valve faces to the fourth inlet D of the thermosistor valve seat. The cooling system of the petrol engine can remove the gas in the cooling liquid, prevents the water pump from cavitating, improves the cooling performance of the cooling system, prevents an engine from overheating and prevents the thermal shock from generating in the cooling system.
Description
Technical field
The utility model relates to a kind of engine-cooling system, relates in particular to a kind of enclosed Forced water cooling petrol engine cooling system.
Background technique
Existing petrol engine cooling system, cooling liquid generally is directly to be pumped in the cylinder block by water pump, enter into cylinder head from the water hole of head gasket, then from cylinder head out, after the radiator cooling, get back to water pump from pump intake by thermoregulator and form major cycle, perhaps directly get back to water pump formation short circle through warm-air drier and closure; Wherein thermoregulator is single valve wax formula thermoregulator, is usually placed in pump intake, and concrete principle as shown in Figure 4.Yet in a kind of like this cooling system, when cylinder block and head was cooled, the part of cooling water was evaporated, and the bubble that produces is passed to water pump, and air intake occurs in water pump the result, thereby is easy to reduce the cooling performance of cooling system.Simultaneously, thermoregulator is arranged in pump intake, reaction to engine outlet water temperature relatively lags behind, and owing to directly get back to water pump from the cooling liquid of warm-air drier and closure, cooling liquid can not rest on around the heat responsive element of thermoregulator, can not carry out abundant preheating to thermoregulator, and the thermoregulator main valve can not in time be opened, major cycle can not in time be opened, and motor is overheated easily.In addition, this cooling system is in the engine warm-up process, and the frequent opening and closing of thermoregulator main valve cause the unusual fluctuations of engine temperature easily, prolongs the engine warm-up time, causes discharging and the fuel economy variation of motor; Simultaneously in cooling system, produce thermal shock, descended to the working life of related components.
The model utility content
Cavitate, prevent engine overheat and prevent from cooling system, producing thermal shock that for fear of water pump by architecture advances, the utility model provides a kind of engine-cooling system that improves structure.
A kind of petrol engine cooling system comprises radiator 1, cylinder head jacket 2, block jacket 3, water pump 4 and swelling water tank 10; The upper tank of radiator 1 is being communicated with the water intake of swelling water tank 10, the water outlet of cylinder head jacket 2 is being communicated with respectively the upper tank of radiator 1 and the water intake of distributed water pipe 9 by three-way pipe, and the outlet of second on the distributed water pipe 9 and the first outlet are being communicated with respectively the import of closure 7 and the import of warm-air drier 8; The water intake of the water outlet of block jacket 3 and cylinder head jacket 2 is communicated with; The water outlet of water pump 4 is being communicated with the water intake of block jacket 3; Also comprise thermoregulator valve seat 5, be provided with thermoregulator 6 in it; Described thermoregulator valve seat 5 is provided with five entrances and an outlet F, and five entrances are respectively the first entrance A, the second entrance B, the 3rd entrance C, the 4th entrance D and the 5th entrance E; Described the first entrance A is being communicated with the lower header of radiator 1, described the second entrance B is being communicated with the outlet of warm-air drier 8, described the 3rd entrance C is being communicated with the outlet of closure 7, described the 4th entrance D is being communicated with the outlet of distributed water pipe 9 by short circle loop 12, and described the 5th entrance E is being communicated with swelling water tank 10 by moisturizing loop 11; The water intake of described water pump 4 is being communicated with the outlet F of thermoregulator valve seat 5; Described thermoregulator 6 is bivalve wax formula thermoregulator, comprises main valve 61 and secondary valve 62, and the first entrance A place that described main valve 61 is installed in thermoregulator valve seat 5 controls the opening and closing of the first entrance A; The 4th entrance D that described secondary valve 62 faces thermoregulator valve seat 5 controls the opening and closing of the 4th entrance D; All the other second entrance B, the 3rd entrance C, the 5th entrance E and outlet F are not subjected to the control of thermoregulator 6, are normally open.
Described distributed water pipe 9 is provided with three outlets, i.e. the first outlet, the second outlet and the 3rd outlet, and the first outlet is being communicated with the import of warm-air drier 8, and the second outlet is being communicated with the import of closure 7, and the 3rd outlet is being communicated with the 4th entrance D of thermoregulator valve seat 5 by short circle loop 12.
Standard-sized sheet lift 〉=the 8mm of described thermoregulator 6, the distance＜8mm between the 4th entrance D of secondary valve 62 and thermoregulator valve seat 5.
Useful technique effect of the present utility model is embodied in following several aspect:
1, before water pump, is provided with connecting pipeline for the moisturizing pressure exhaust, can removes the gas in the cooling liquid, avoid water pump to cavitate, thereby improve the cooling performance of cooling system;
2, increased simultaneously independently short circle loop, improved the structure of thermoregulator valve seat, make cooling liquid from engine water outlet can rest on the thermoregulator heat responsive element around, thermoregulator is carried out abundant preheating, thereby the assurance major cycle can in time be opened, and prevents engine overheat;
3, be conducive to reduce the thermoregulator open frequency, shorten the warm-up period of motor, reduce fuel consume and the discharging of motor, prevent from cooling system, producing thermal shock.
Description of drawings
Fig. 1 is the utility model cooling system short circle schematic diagram.
Fig. 2 is the utility model cooling system major cycle schematic diagram.
Fig. 3 is the partial enlarged drawing of Fig. 1.
Fig. 4 is existing cooling system circulation theory figure.
Sequence number among the upper figure: radiator 1, cylinder head jacket 2, block jacket 3, water pump 4, thermoregulator valve seat 5, thermoregulator 6, main valve 61, secondary valve 62, closure 7, warm-air drier 8, distributed water pipe 9, swelling water tank 10, moisturizing loop 11, short circle loop 12.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment the utility model is further described.
Embodiment:
Referring to Fig. 1, a kind of petrol engine cooling system comprises radiator 1, cylinder head jacket 2, block jacket 3, water pump 4 and swelling water tank 10.The upper tank of radiator 1 is being communicated with the water intake of swelling water tank 10, the water outlet of cylinder head jacket 2 is being communicated with respectively the upper tank of radiator 1 and the water intake of distributed water pipe 9 by three-way pipe, and the outlet of second on the distributed water pipe 9 and the first outlet are being communicated with respectively the import of closure 7 and the import of warm-air drier 8; The water intake of the water outlet of block jacket 3 and cylinder head jacket 2 is communicated with; The water outlet of water pump 4 is being communicated with the water intake of block jacket 3.Referring to Fig. 3, thermoregulator 6 is installed in the thermoregulator valve seat 5, thermoregulator valve seat 5 is provided with five entrances and an outlet F, and five entrances are respectively the first entrance A, the second entrance B, the 3rd entrance C, the 4th entrance D and the 5th entrance E; The first entrance A is being communicated with the lower header of radiator 1, the second entrance B is being communicated with the outlet of warm-air drier 8, the 3rd entrance C is being communicated with the outlet of closure 7, and the 4th entrance D is being communicated with the 3rd outlet of distributed water pipe 9 by short circle loop 12, and the 5th entrance E is being communicated with swelling water tank 10 by moisturizing loop 11; The water intake of water pump 4 is being communicated with the outlet F of thermoregulator valve seat 5.Thermoregulator 6 is bivalve wax formula thermoregulator, comprises main valve 61 and secondary valve 62, and the first entrance A place that main valve 61 is installed in thermoregulator valve seat 5 controls the opening and closing of the first entrance A; Secondary valve 62 faces the 4th entrance D of thermoregulator valve seat 5, and the distance between the 4th entrance D is controlled the opening and closing of the 4th entrance D less than 8mm; All the other second entrance B, the 3rd entrance C, the 5th entrance E and outlet F are not subjected to the control of thermoregulator 6, are normally open.
Distributed water pipe 9 supervisor's internal diameters are Φ 15mm, and a bore of connecting joint valve 7 is Φ 6mm, and a bore that connects short circle loop 12 is Φ 11.5mm.
The pipeline internal diameter in moisturizing loop 11 is Φ 11.5mm.
The utility model working procedure: when engine start, water pump 4 is started working, and cooling liquid begins circulation by water pump 4 pressurizations.Cooling liquid at first enters block jacket 3, and then the water hole from head gasket enters into cylinder head jacket 2, then from cylinder head jacket 2 out.Because this moment, coolant temperature was lower, the main valve 61 of thermoregulator 6 is closed, secondary valve 62 is opened, namely the first entrance A closes fully, the 4th entrance D opens fully, cooling liquid enters respectively short circle loop 12, warm-air drier 8 and closure 7 by distributed water pipe 9, then imports thermoregulator valve seat 5 from the 4th entrance D, the second entrance B and the 3rd entrance C respectively, before final outlet F from thermoregulator valve seat 5 flows out and gets back to water pump 4.This circulation is exactly the cooling system short circle, as shown in Figure 1.By increasing short circle loop 12, make sufficient high temperature coolant thermoregulator 6 heat responsive elements of constantly flowing through, thermoregulator 6 is carried out abundant preheating, thereby when coolant temperature reached predefined value, thermoregulator 6 main valves can be opened in time, prevent engine overheat;
When the temperature continuation rising of cooling liquid reaches more than 95 ℃, the main valve 61 of thermoregulator 6 is opened fully, secondary valve 62 cuts out fully, namely the first entrance A opens fully, the 4th entrance D closes fully, short circle loop 12 is closed fully, cooling liquid more than 65% enters radiator 1 from cylinder head jacket 2, after radiator 1 cooling, enter thermoregulator valve seat 5 by the first entrance A, then before getting back to water pump 4 from the outlet F outflow of thermoregulator valve seat 5, this circulation is exactly the cooling system major cycle, and as shown in Figure 2, but warm-air drier 8 and closure 7 loops are in normally open all the time.
When coolant temperature was between 82 ℃ to 95 ℃, thermoregulator 6 main valves 61 parts were opened, and secondary valve 62 parts are closed, and namely the first entrance A partially opens, and the 4th entrance D partly closes, and were in short circle this moment to the transition state of major cycle.At this moment, because fully preheating of thermoregulator 6, the lower cooling liquid of portion temperature that enters thermoregulator valve seat 5 from the first entrance A can not cause thermoregulator 6 coolant temperature rapid drawdowns on every side, just can not cause thermoregulator 6 frequent opening and closing yet, thereby the warm-up period of shortening motor, reduce fuel consume and the discharging of motor, prevent from cooling system, producing thermal shock.
Claims (3)
1. a petrol engine cooling system comprises radiator (1), cylinder head jacket (2), block jacket (3), water pump (4) and swelling water tank (10); The upper tank of radiator (1) is being communicated with the water intake of swelling water tank (10), the water outlet of cylinder head jacket (2) is being communicated with respectively the upper tank of radiator (1) and the water intake of distributed water pipe (9) by three-way pipe, and the outlet of second on the distributed water pipe (9) and the first outlet are being communicated with respectively the import of closure (7) and the import of warm-air drier (8); The water intake of the water outlet of block jacket (3) and cylinder head jacket (2) is communicated with; The water outlet of water pump (4) is being communicated with the water intake of block jacket (3), it is characterized in that: also comprise thermoregulator valve seat (5), be provided with thermoregulator (6) in it; Described thermoregulator valve seat (5) is provided with five entrances and an outlet F, and five entrances are respectively the first entrance A, the second entrance B, the 3rd entrance C, the 4th entrance D and the 5th entrance E; Described the first entrance A is being communicated with the lower header of radiator (1), described the second entrance B is being communicated with the outlet of warm-air drier (8), described the 3rd entrance C is being communicated with the outlet of closure (7), described the 4th entrance D is being communicated with the outlet of distributed water pipe (9) by short circle loop (12), and described the 5th entrance E is being communicated with swelling water tank (10) by moisturizing loop (11); The water intake of described water pump (4) is being communicated with the outlet F of thermoregulator valve seat (5); Described thermoregulator (6) is bivalve wax formula thermoregulator, comprises main valve (61) and secondary valve (62), and the first entrance A place that described main valve (61) is installed in thermoregulator valve seat (5) controls the opening and closing of the first entrance A; The 4th entrance D that described secondary valve (62) faces thermoregulator valve seat (5) controls the opening and closing of the 4th entrance D; All the other second entrance B, the 3rd entrance C, the 5th entrance E and outlet F are not subjected to the control of thermoregulator (6), are normally open.
2. a kind of petrol engine cooling system according to claim 1, it is characterized in that: described distributed water pipe (9) is provided with three outlets, i.e. the first outlet, the second outlet and the 3rd outlet, and the first outlet is being communicated with the import of warm-air drier (8), the second outlet is being communicated with the import of closure (7), and the 3rd outlet is being communicated with the 4th entrance D of thermoregulator valve seat (5) by short circle loop (12).
3. a kind of petrol engine cooling system according to claim 1 is characterized in that: the standard-sized sheet lift 〉=8mm of described thermoregulator (6), the distance＜8mm between the 4th entrance D of secondary valve (62) and thermoregulator valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283704 CN202645705U (en) | 2012-06-18 | 2012-06-18 | Cooling system of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283704 CN202645705U (en) | 2012-06-18 | 2012-06-18 | Cooling system of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645705U true CN202645705U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220283704 Expired - Fee Related CN202645705U (en) | 2012-06-18 | 2012-06-18 | Cooling system of petrol engine |
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| Country | Link |
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| CN (1) | CN202645705U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705055A (en) * | 2012-06-18 | 2012-10-03 | 安徽江淮汽车股份有限公司 | Gasoline engine cooling system |
| CN105745411A (en) * | 2014-01-23 | 2016-07-06 | 宝马股份公司 | Heat management system for an internal combustion engine |
| CN105736116A (en) * | 2016-04-18 | 2016-07-06 | 江苏大学 | Anti-cavitation intelligent controllable water pump |
| CN107013296A (en) * | 2016-01-28 | 2017-08-04 | 长城汽车股份有限公司 | Engine |
| CN109057937A (en) * | 2018-10-09 | 2018-12-21 | 威马智慧出行科技（上海）有限公司 | A kind of coolant circulation system |
-
2012
- 2012-06-18 CN CN 201220283704 patent/CN202645705U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705055A (en) * | 2012-06-18 | 2012-10-03 | 安徽江淮汽车股份有限公司 | Gasoline engine cooling system |
| CN102705055B (en) * | 2012-06-18 | 2014-06-25 | 安徽江淮汽车股份有限公司 | Gasoline engine cooling system |
| CN105745411A (en) * | 2014-01-23 | 2016-07-06 | 宝马股份公司 | Heat management system for an internal combustion engine |
| US10023025B2 (en) | 2014-01-23 | 2018-07-17 | Bayerische Motoren Werke Aktiengesellschaft | Heat management system for an internal combustion engine |
| CN105745411B (en) * | 2014-01-23 | 2018-10-12 | 宝马股份公司 | Heat management system for internal combustion engine |
| CN107013296A (en) * | 2016-01-28 | 2017-08-04 | 长城汽车股份有限公司 | Engine |
| CN107013296B (en) * | 2016-01-28 | 2020-07-03 | 长城汽车股份有限公司 | Engine |
| CN105736116A (en) * | 2016-04-18 | 2016-07-06 | 江苏大学 | Anti-cavitation intelligent controllable water pump |
| CN109057937A (en) * | 2018-10-09 | 2018-12-21 | 威马智慧出行科技（上海）有限公司 | A kind of coolant circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20190618 |