CN105275572A - Engine cooling system - Google Patents
Engine cooling system Download PDFInfo
- Publication number
- CN105275572A CN105275572A CN201510311756.2A CN201510311756A CN105275572A CN 105275572 A CN105275572 A CN 105275572A CN 201510311756 A CN201510311756 A CN 201510311756A CN 105275572 A CN105275572 A CN 105275572A
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- water pump
- pressing plate
- engine
- axle sleeve
- pump cover
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Abstract
The invention discloses an engine cooling system and aims at providing an engine cooling system capable of meeting the cooling water amount needed for high-speed and high-load running of an engine and also capable of effectively shortening the engine heating time in the cold start process of the engine. The engine cooling system comprises a cooling water circulation pipeline and a water pump arranged on the cooling water circulation pipeline. The water pump comprises a water pump shell, a drive shaft arranged on the water pump shell, and a shaft sleeve coaxially arranged on the drive shaft. One end of the shaft sleeve extends into an inner cavity of the water pump shell, and the other end of the shaft sleeve is located outside the water pump shell. The shaft sleeve is rotationally arranged on the water pump shell, and the shaft sleeve and the drive shaft can relatively rotate. The drive shaft is provided with a first impeller, and the first impeller is located in the inner cavity of the water pump shell. The shaft sleeve is provided with a second impeller, and the second impeller is located in the inner cavity of the water pump shell. The drive shaft is provided with a drive belt wheel, and the drive belt wheel is located outside the water pump shell.
Description
Technical field
The present invention relates to engine-cooling system field, be specifically related to a kind of water-cooled system engine-cooling system.
Background technique
During engine operation, the gas temperature in cylinder can up to 1727-2527 degree Celsius, if cool not in time, engine component temperature will be caused too high, especially the part directly contacted with high-temperature gas, can, because of the normal matching gap of thermal expansion effects, cause movement parts to be obstructed even stuck; In addition, high temperature also can cause the mechanical strength of engine component to decline, and makes lubricant oil ineffective; Thus arranging of engine-cooling system has vital impact to engine performance and safe handling.
Water-cooled system engine-cooling system is a kind of engine-cooling system conventional at present.The cooling medium of water-cooled system engine-cooling system is cooling water (cooling liquid), it makes cooling water circulate in cooling water circulation pipeline by water pump, the partial heat that Heating Components absorbs is distributed in time, ensures that motor works under optimum state of temperature.
The design of the water pump water output in current engine-cooling system is all often to provide enough cooling water inflows when ensureing high engine speeds full load, so water pump actual water supply can more than theoretical water output as a rule; This causes in engine cold-start process, and ubiquity warm-up period is partially long, and engine long time service at low temperatures; Especially in the winter time, motor is when cold start-up, and warm-up period is longer, and this is not only bad for engine work, easily causes the damage of engine movements parts, and wastes the energy.
Such as, China Patent Publication No. CN201953458U, publication date on August 31st, 2011, the name of innovation and creation is called engine-cooling system, comprises cylinder body, cools back water pipe, thermostat, pump water inlet and water pump.The engine-cooling system of this application case exists in engine cold-start process equally, there is warm-up period partially long, and the engine long time works at low temperatures and is unfavorable for engine work, easily causes the damage of engine movements parts; And waste the problem of the energy.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, there is provided a kind of and can not only meet cooling water inflow required under high engine speeds high load running, but also the warm-up period that can effectively shorten in engine cold-start process, be conducive to improving energy utilization rate and increasing service life of engine, and structure simple, be easy to the engine-cooling system that realizes.
Technological scheme of the present invention is:
The water pump that a kind of engine-cooling system comprises cooling water circulation pipeline and is arranged on cooling water circulation pipeline, described water pump comprises water pump cover, be arranged on the live axle on water pump cover and the coaxial axle sleeve arranged on the driving shaft, one end of described axle sleeve extends in the inner chamber of water pump cover, the other end is positioned at outside water pump cover, axle sleeve is rotating to be arranged on water pump cover, can relatively rotate between axle sleeve and live axle; Described live axle is provided with the first impeller, and the first impeller is positioned at the inner chamber of water pump cover, and described axle sleeve is provided with the second impeller, and the second impeller is positioned at the inner chamber of water pump cover; Described live axle is provided with driving pulley, and driving pulley is positioned at outside water pump cover, described axle sleeve is provided with pressing plate, described pressing plate can moving axially along axle sleeve, and be connected by key between pressing plate with axle sleeve, pressing plate is positioned at outside water pump cover, and pressing plate and axle sleeve are positioned at the same side of driving pulley, and being provided with the first friction disk towards the driving pulley side of pressing plate, described first friction disk parallels with pressing plate; Also be provided with clutch actuating device between described water pump cover and pressing plate, this clutch actuating device is for driving pressing plate to be pressed on the first friction disk or driving pressing plate to be separated with the first friction disk; In engine working process, cooling water circulates in cooling water circulation pipeline; When the entering water temp of motor is lower than setting temperature T, clutch actuating device drives pressing plate to be separated with the first friction disk; When the entering water temp of motor is higher than setting temperature T, clutch actuating device drives pressing plate to be pressed on the first friction disk.
In the engine-cooling system working procedure of this programme: when the entering water temp of motor is lower than setting temperature T, clutch actuating device drives pressing plate to be separated with the first friction disk, now, second impeller does not work, the first impeller work is only had to be that cooling system supplies water, like this in engine cold-start process, engine temperature can be made to be climbed within the scope of normal working temperature, thus effectively can shorten the warm-up period in engine cold-start process, be conducive to improving energy utilization rate and increasing service life of engine.
When the entering water temp of motor is higher than setting temperature T, clutch actuating device drives pressing plate to be pressed on the first friction disk; Now, the first impeller and the second impeller co-operation, to meet cooling water inflow required under high engine speeds high load running, make engine temperature keep within the scope of normal working temperature.
On the other hand, this programme makes pressing plate be pressed on the first friction disk by clutch actuating device or pressing plate is separated with the first friction disk, thus realizes the first impeller and the second impeller co-operation or the second impeller and do not work; And then reach and can not only meet cooling water inflow required under high engine speeds high load running, but also the warm-up period that can effectively shorten in engine cold-start process, be conducive to the object improving energy utilization rate and increasing service life of engine, its structure is simple, be easy to realize.
As preferably, the first impeller often turn that discharge capacity is less than the second impeller often turn discharge capacity.Due to the first impeller often turn that discharge capacity is less than the second impeller often turn discharge capacity, like this in engine cold-start process, warm-up period can be shortened further, make engine temperature be climbed within the scope of normal working temperature; When high engine speeds high load running, cooling water inflow required under effectively can meeting again high engine speeds high load running, makes engine temperature keep within the scope of normal working temperature.
As preferably, clutch actuating device comprises the electromagnet be arranged on water pump cover and the permanent magnet be arranged on pressing plate, and described electromagnet and permanent magnet are positioned at the same side of pressing plate, and the N pole of permanent magnet or S pole are towards electromagnet.
As preferably, be provided with the sliding sleeve coaxial with axle sleeve in the middle part of pressing plate, axle sleeve is plugged in sliding sleeve, and described sliding sleeve can moving axially along axle sleeve, and described key connects and is arranged between sliding sleeve and axle sleeve.
As preferably, the inwall of water pump cover is provided with dividing plate, and this dividing plate is between the first impeller and the second impeller.
As preferably, the pressing plate upper side towards the first friction disk is provided with the second friction disk.
As preferably, axle sleeve is arranged on water pump cover by bearing is rotating.
As preferably, setting temperature T is 80 to 90 degrees Celsius.
As preferably, between axle sleeve and live axle, be provided with inner seal ring, between axle sleeve and water pump cover, be provided with exterior seal ring.
The invention has the beneficial effects as follows: cooling water inflow required under high engine speeds high load running can not only be met, but also the warm-up period that can effectively shorten in engine cold-start process, be conducive to improving energy utilization rate and increasing service life of engine, and structure simple, be easy to realize.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
In figure: water pump cover 1, dividing plate 2, water outlet 3, electromagnet 4, permanent magnet 5, pressing plate 6, the second friction disk 7, driving pulley 8, the first friction disk 9, axle sleeve 10, live axle 11, the second impeller 12, water intake 13, the first impeller 14, sliding sleeve 15.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, a kind of engine-cooling system, comprises cooling water circulation pipeline, temperature transducer and the water pump be arranged on cooling water circulation pipeline.Temperature transducer is for detecting the entering water temp (entering water temp of motor refers to temperature when cooling water enters motor water cavity) of motor.
Water pump comprises water pump cover 1, is arranged on the live axle 11 on water pump cover 1, is coaxially located at the axle sleeve 10 on live axle 11 and the water intake 13 be arranged on water pump cover 1 and water outlet 3.One end of axle sleeve 10 extends in the inner chamber of water pump cover 1, and the other end is positioned at outside water pump cover 1.Axle sleeve 10 is arranged on water pump cover 1 by bearing is rotating.Can relatively rotate between axle sleeve 10 and live axle 11.Inner seal ring is provided with between axle sleeve 10 and live axle 11.Exterior seal ring is provided with between axle sleeve 10 and water pump cover 1.
Live axle 11 is provided with the first impeller 14.First impeller 14 is positioned at the inner chamber of water pump cover 1.Axle sleeve 10 is provided with the second impeller 12.Second impeller 12 is positioned at the inner chamber of water pump cover 1.The inwall of water pump cover 1 is provided with dividing plate 2.Dividing plate 2 is between the first impeller 14 and the second impeller 12.First impeller 14 often turn that discharge capacity is less than the second impeller 12 often turn discharge capacity.
Live axle 11 is provided with driving pulley 8.Driving pulley 8 is positioned at outside water pump cover 1.Axle sleeve 10 is provided with pressing plate 6.Pressing plate 6 can moving axially along axle sleeve 10.Be connected by key between pressing plate 6 with axle sleeve 10, specifically, be provided with the sliding sleeve 15 coaxial with axle sleeve 10 in the middle part of pressing plate 6, axle sleeve 10 is plugged in sliding sleeve 15, and sliding sleeve 15 can moving axially along axle sleeve 10, is connected between sliding sleeve 15 with axle sleeve 10 by key.Key linkage structure in the present embodiment between sliding sleeve 15 and axle sleeve 10 is spline connection structure.Pressing plate 6 is positioned at outside water pump cover 1.Pressing plate 6 and axle sleeve 10 are positioned at the same side of driving pulley 8, and are provided with the first friction disk 9 towards driving pulley 8 side of pressing plate 6.First friction disk 9 parallels with pressing plate 6.Pressing plate 6 upper side towards the first friction disk 9 is provided with the second friction disk 7.First friction disk 9 parallels with the second friction disk 7.
Also be provided with clutch actuating device between water pump cover 1 and pressing plate 6, this clutch actuating device is for driving pressing plate 6 to be pressed on the first friction disk 9 or driving pressing plate 6 to be separated with the first friction disk 9.Clutch actuating device comprises the electromagnet 4 be arranged on water pump cover 1 and the permanent magnet 5 be arranged on pressing plate 6.Electromagnet 4 and permanent magnet 5 are positioned at the same side of pressing plate 6, and the N pole of permanent magnet 5 or S pole are towards electromagnet 4.
In engine working process, cooling water circulates in cooling water circulation pipeline; When the entering water temp of motor is lower than setting temperature T, clutch actuating device drives pressing plate 6 to be separated with the first friction disk 9, is that the second friction disk 7 is separated with the first friction disk 9 specifically.When the entering water temp of motor is higher than setting temperature T, clutch actuating device drives pressing plate 6 to be pressed on the first friction disk 9, is that the second friction disk 7 is pressed on the first friction disk 9 specifically.Setting temperature T is 80 to 90 degrees Celsius.
The specific works process of engine-cooling system of the present invention is as follows:
In engine working process, cooling water circulates in cooling water circulation pipeline.
When the entering water temp of motor is lower than setting temperature T, electromagnet 4 energising makes to produce suction between electromagnet 4 and permanent magnet 5 and (such as when the coil of electromagnet 4 leads to forward current, produces suction between electromagnet 4 and permanent magnet 5; When the coil of electromagnet 4 leads to negative current, repulsion is produced) between electromagnet 4 and permanent magnet 5, thus permanent magnet 5, pressing plate 6 and the second friction disk 7 are moved toward electromagnet 4 direction, thus the second friction disk 7 is separated with the first friction disk 9, now, second impeller 12 does not work, and only has the first impeller 14 to work as cooling system supplies water; Like this in engine cold-start process (temperature in engine cold-start process is lower than setting temperature T:80 to 90 degree Celsius), the water output of cooling water can be effectively reduced, engine temperature is made to be climbed within the scope of normal working temperature, thus effectively can shorten the warm-up period in engine cold-start process, be conducive to improving energy utilization rate and increasing service life of engine.
When the entering water temp of motor is higher than setting temperature T, electromagnet 4 energising makes to produce repulsion between electromagnet 4 and permanent magnet 5, thus permanent magnet 5, pressing plate 6 and the second friction disk 7 are moved toward the first friction disk 9 direction, thus make the second friction disk 7 compress on the first friction disk 9, now, first impeller 14 and the second impeller 12 co-operation, for cooling system provides enough cooling water inflows, to meet cooling water inflow required under high engine speeds high load running, engine temperature is kept within the scope of normal working temperature.
Claims (9)
1. an engine-cooling system, the water pump comprising cooling water circulation pipeline and be arranged on cooling water circulation pipeline, it is characterized in that, described water pump comprises water pump cover (1), be arranged on the live axle (11) on water pump cover and the coaxial axle sleeve (10) arranged on the driving shaft, one end of described axle sleeve extends in the inner chamber of water pump cover, and the other end is positioned at outside water pump cover, axle sleeve is rotating to be arranged on water pump cover, can relatively rotate between axle sleeve and live axle; Described live axle is provided with the first impeller (14), and the first impeller is positioned at the inner chamber of water pump cover, and described axle sleeve is provided with the second impeller (12), and the second impeller is positioned at the inner chamber of water pump cover; Described live axle is provided with driving pulley (8), and driving pulley is positioned at outside water pump cover,
Described axle sleeve is provided with pressing plate (6), described pressing plate can moving axially along axle sleeve, and be connected by key between pressing plate with axle sleeve, pressing plate is positioned at outside water pump cover, pressing plate and axle sleeve are positioned at the same side of driving pulley, and being provided with the first friction disk (9) towards the driving pulley side of pressing plate, described first friction disk parallels with pressing plate; Also be provided with clutch actuating device between described water pump cover and pressing plate, this clutch actuating device is for driving pressing plate to be pressed on the first friction disk or driving pressing plate to be separated with the first friction disk; In engine working process, cooling water circulates in cooling water circulation pipeline; When the entering water temp of motor is lower than setting temperature T, clutch actuating device drives pressing plate to be separated with the first friction disk; When the entering water temp of motor is higher than setting temperature T, clutch actuating device drives pressing plate to be pressed on the first friction disk.
2. a kind of engine-cooling system according to claim 1, is characterized in that, described first impeller often turn that discharge capacity is less than the second impeller often turn discharge capacity.
3. a kind of engine-cooling system according to claim 1, it is characterized in that, described clutch actuating device comprises the electromagnet (4) be arranged on water pump cover and the permanent magnet (5) be arranged on pressing plate, described electromagnet and permanent magnet are positioned at the same side of pressing plate, and the N pole of permanent magnet or S pole are towards electromagnet.
4. a kind of engine-cooling system according to claim 1 or 2 or 3, it is characterized in that, be provided with the sliding sleeve (15) coaxial with axle sleeve in the middle part of described pressing plate, axle sleeve is plugged in sliding sleeve, described sliding sleeve can moving axially along axle sleeve, and described key connects and is arranged between sliding sleeve and axle sleeve.
5. a kind of engine-cooling system according to claim 1 or 2 or 3, is characterized in that, the inwall of described water pump cover is provided with dividing plate (2), and this dividing plate is between the first impeller and the second impeller.
6. a kind of engine-cooling system according to claim 1 or 2 or 3, is characterized in that, the pressing plate upper side towards the first friction disk is provided with the second friction disk (7).
7. a kind of engine-cooling system according to claim 1 or 2 or 3, is characterized in that, described axle sleeve is arranged on water pump cover by bearing is rotating.
8. a kind of engine-cooling system according to claim 1 or 2 or 3, is characterized in that, described setting temperature T is 80 to 90 degrees Celsius.
9. a kind of engine-cooling system according to claim 1 or 2 or 3, is characterized in that, be provided with inner seal ring, be provided with exterior seal ring between axle sleeve and water pump cover between described axle sleeve and live axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311756.2A CN105275572A (en) | 2015-06-09 | 2015-06-09 | Engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311756.2A CN105275572A (en) | 2015-06-09 | 2015-06-09 | Engine cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105275572A true CN105275572A (en) | 2016-01-27 |
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ID=55145274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311756.2A Pending CN105275572A (en) | 2015-06-09 | 2015-06-09 | Engine cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105275572A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736451A (en) * | 2016-03-30 | 2016-07-06 | 无锡美羊动力科技有限公司 | Diesel engine automobile water pump capable of draining water through two impellers |
| CN105736114A (en) * | 2016-03-30 | 2016-07-06 | 无锡美羊动力科技有限公司 | Automobile water pump with multiple large and small impeller sets for draining water |
| CN108487982A (en) * | 2018-04-17 | 2018-09-04 | 苏州奥沃汽车配件有限公司 | A kind of forerunner's fan clutch |
| CN108518270A (en) * | 2018-04-17 | 2018-09-11 | 苏州奥沃汽车配件有限公司 | A kind of electromagnetic fan clutch from cooling |
| WO2019030658A1 (en) * | 2017-08-07 | 2019-02-14 | Magna Powertrain Inc. | Hybrid coolant pump |
| CN109958627A (en) * | 2017-12-26 | 2019-07-02 | 宁波方太厨具有限公司 | A kind of water pump and dual-purpose stove |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336686A (en) * | 1998-05-26 | 1999-12-07 | Aisin Seiki Co Ltd | Water pump |
| CN2753907Y (en) * | 2004-12-14 | 2006-01-25 | 闫家林 | Vertical series-parallel centrifugal pump |
| CN101782012A (en) * | 2009-01-18 | 2010-07-21 | 龙口市汽车风扇离合器厂 | Permanent-magnet electromagnetic clutch |
| CN102072170A (en) * | 2009-11-23 | 2011-05-25 | 昆山隆中麦士格瑞汽车部件有限公司 | Electromagnetic clutch water pump |
| CN102086799A (en) * | 2009-12-08 | 2011-06-08 | 华纳圣龙（宁波）有限公司 | Electronic cooling water pump of variable-flow engine |
| CN202628261U (en) * | 2012-03-22 | 2012-12-26 | 浙江吉利汽车研究院有限公司 | Water pump of automobile engine |
| CN204082295U (en) * | 2014-07-09 | 2015-01-07 | 昆山隆中麦士格瑞汽车部件有限公司 | A kind of changeable flow magnetic clutch cooling waterpump |
-
2015
- 2015-06-09 CN CN201510311756.2A patent/CN105275572A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336686A (en) * | 1998-05-26 | 1999-12-07 | Aisin Seiki Co Ltd | Water pump |
| CN2753907Y (en) * | 2004-12-14 | 2006-01-25 | 闫家林 | Vertical series-parallel centrifugal pump |
| CN101782012A (en) * | 2009-01-18 | 2010-07-21 | 龙口市汽车风扇离合器厂 | Permanent-magnet electromagnetic clutch |
| CN102072170A (en) * | 2009-11-23 | 2011-05-25 | 昆山隆中麦士格瑞汽车部件有限公司 | Electromagnetic clutch water pump |
| CN102086799A (en) * | 2009-12-08 | 2011-06-08 | 华纳圣龙（宁波）有限公司 | Electronic cooling water pump of variable-flow engine |
| CN202628261U (en) * | 2012-03-22 | 2012-12-26 | 浙江吉利汽车研究院有限公司 | Water pump of automobile engine |
| CN204082295U (en) * | 2014-07-09 | 2015-01-07 | 昆山隆中麦士格瑞汽车部件有限公司 | A kind of changeable flow magnetic clutch cooling waterpump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736451A (en) * | 2016-03-30 | 2016-07-06 | 无锡美羊动力科技有限公司 | Diesel engine automobile water pump capable of draining water through two impellers |
| CN105736114A (en) * | 2016-03-30 | 2016-07-06 | 无锡美羊动力科技有限公司 | Automobile water pump with multiple large and small impeller sets for draining water |
| WO2019030658A1 (en) * | 2017-08-07 | 2019-02-14 | Magna Powertrain Inc. | Hybrid coolant pump |
| US11280249B2 (en) | 2017-08-07 | 2022-03-22 | Hanon Systems EFP Canada Ltd. | Hybrid coolant pump |
| CN109958627A (en) * | 2017-12-26 | 2019-07-02 | 宁波方太厨具有限公司 | A kind of water pump and dual-purpose stove |
| CN109958627B (en) * | 2017-12-26 | 2024-01-16 | 宁波方太厨具有限公司 | Water pump and dual-purpose stove |
| CN108487982A (en) * | 2018-04-17 | 2018-09-04 | 苏州奥沃汽车配件有限公司 | A kind of forerunner's fan clutch |
| CN108518270A (en) * | 2018-04-17 | 2018-09-11 | 苏州奥沃汽车配件有限公司 | A kind of electromagnetic fan clutch from cooling |
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Application publication date: 20160127 |
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