CN102086803A - Engine and engine oil cooling circulation system thereof - Google Patents
Engine and engine oil cooling circulation system thereof Download PDFInfo
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- CN102086803A CN102086803A CN 201110042836 CN201110042836A CN102086803A CN 102086803 A CN102086803 A CN 102086803A CN 201110042836 CN201110042836 CN 201110042836 CN 201110042836 A CN201110042836 A CN 201110042836A CN 102086803 A CN102086803 A CN 102086803A
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Abstract
The invention discloses an engine oil cooling circulation system used for an engine. The engine oil cooling circulation system provided by the invention comprises a motive power component and an engine oil cooler, wherein the motive power drives a cooling medium to circulate; the engine oil cooler is used for containing the heat exchange of the cooling medium and the engine oil; a first outlet of the motive power component is communicated with the engine body inlet of the engine; a second outlet of the motive power component is communicated with the inlet of the engine oil cooler; the outlet of the engine body is communicated with a first inlet of the motive power component; and the motive power component also comprises a second inlet, and the outlet of the engine oil cooler is directly communicated with the second inlet of the motive power. The flow rate of the cooling medium in the engine oil cooler can be improved obviously, thus the heat exchange efficiency of the cooling medium and the engine oil can be improved obviously, and the cooling efficiency of the engine oil can be improved effectively. The circulation system has the following advantages: on the basis of keeping the cooling cost of the engine oil unchanged, the cooling efficiency is improved obviously, thus the working performance and reliability of the engine can be improved. The invention also provides an engine comprising the circulation system.
Description
Technical field
The present invention relates to machine oil cooling field, particularly relate to a kind of engine oil cooling circulation system that is used for motor.In addition, the invention still further relates to a kind of motor that comprises the said engine oil cooling recirculation system.
Background technique
Engine motor oil is used to reduce the friction and wear of each moving parts of motor, takes away because fricative heat etc., and general motor has lubricated, cooling, sealing, function such as anticorrosion with machine oil.Temperature can raise when machine oil was worked in motor, as not cooling off, had following hidden danger:
Easy oxidation deterioration when 1) oil temperature is high, corrosion engine part, broken ring engine work;
Viscosity can reduce when 2) oil temperature was high, was difficult to set up oil film between each movement parts of motor, thereby can't reduce friction, wearing and tearing, caused the movement parts wear-out failure, and motor can't continue proper functioning.
General employing machine oil cooler is cooled off the machine oil of motor in the prior art, machine oil cooler is similar to radiator (being commonly called as water tank), radiator of motor etc., be generally pipe type, the machine oil slave oil inlet of heat enters machine oil cooler, flows in the tube core in cooler then.Cooling water enters from the machine oil cooler water inlet, flows outside the tube core of cooler then.Because cooling water temperature is lower, oil temperature is higher, and two kinds of liquid carry out exchange heat inside and outside the tube core of cooler, makes oil temperature reduce, and cooling water temperature raises.Machine oil after temperature reduces enters and carries out work in the engine body, and the cooling water after temperature raises is got back to engine water outlet and circulated.(cooling water all is to get back to engine water outlet or body water cavity after heating up traditionally, so also need pass through engine radiator again through after the circulation in body, just gets back to pump intake.
Please refer to Fig. 1, Fig. 1 is a kind of representative engine machine oil cooling water recirculation system schematic representation in the prior art, and direction shown in the arrow is the direction of flow of cooling water among the figure.
After cooling water cools off in radiator 15, by water pump 13 to its pressurization, be divided into two bursts of water routes then, most of water directly enters diesel-engine body 11, fraction water enters machine oil cooler 14, to after the machine oil cooling, the water with the body 11 of flowing through passes through thermostat 12 together again in machine oil cooler 14.This moment, then all water entered water pump 13 if water temperature is lower than the unlatching temperature of thermostat 12, and periodic duty is continued in the pressurization back in water pump 13; Open temperature if water temperature is higher than thermostat 12, after then cooling water cools off through radiator 5, enter water pump 13 pressurizations again, carry out water cycle.
Cooling water in water pump 13 pressurized after, most of water enters diesel-engine body 11, fraction water enters machine oil cooler 14, passes through thermostat 12 and radiator 15 together to after the machine oil cooling then, and then circulates through water pump 13 pressurizations.If most of water is still higher through hydraulic pressure behind the diesel engine, promptly machine oil cooler 14 backwater end hydraulic pressure are also higher, and then the pressure reduction imported and exported of machine oil cooler 14 is less, and the water flow that causes entering machine oil cooler 14 is less, and is relatively poor to oil-cooled effect.In order to strengthen the cooling effect of machine oil, can increase the volume of machine oil cooler 14, increase heat diffusion area, but can increase the cooling cost of motor, increase the difficulty of engine design, layout.
Therefore, how as far as possible cheaply under the prerequisite, improving oil-cooled efficient, improve efficiency of engine and reliability, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of engine oil cooling circulation system that is used for motor, this circulatory system can not increase the cooling cost of machine oil, can effectively improve the cooling effectiveness of machine oil simultaneously.Another object of the present invention provides a kind of motor that comprises the said engine oil cooling recirculation system, and this efficiency of engine is improved.
For achieving the above object, the invention provides a kind of engine oil cooling circulation system that is used for motor, comprise the machine oil cooler that drives cooling medium circuit power unit and hold described cooling medium and machine oil heat exchange; First outlet of described power unit is communicated with the body inlet of described motor, and second outlet is communicated with the inlet of described machine oil cooler; The outlet of described body is communicated with first inlet of described power unit, and described power unit also comprises second inlet, and the outlet of described machine oil cooler directly is communicated with second inlet of described power unit.
Preferably, also comprise temperature control parts and the radiator all be located between described body and the described power unit, the inlet of these temperature control parts is communicated with the outlet of described body; Described power unit also comprises the 3rd inlet, first outlet of described temperature control parts is communicated with the 3rd inlet of described power unit, second outlet of described temperature control parts is communicated with the inlet of described radiator, and the outlet of described radiator is communicated with first inlet of described power unit; First outlet and second outlet of described temperature control parts are opened, and another person closes.
Preferably, also comprise the fan corresponding with described heat sink location.
Preferably, described temperature control parts are specially thermostat.
Preferably, described cooling medium is specially water, and described power unit is specially water pump.
The present invention also provides a kind of motor, comprises machine oil that is used to lubricate and the circulatory system of cooling off described machine oil, and the described circulatory system is as above-mentioned each described engine oil cooling circulation system.
Preferably, be specially diesel engine.
The circulatory system provided by the present invention is used for the machine oil of cooled engine, and the oil temperature of motor is remained within the zone of reasonableness, guarantees the motor proper functioning, improves the reliability of motor.This circulatory system comprises power unit and machine oil cooler, and power unit provides circulation power for cooling medium, and cooling medium is circulated in motor; Cooling medium and machine oil heat exchange in the machine oil cooler reduce oil temperature, and coolant temperature raises; First outlet of described power unit is communicated with the body inlet of described motor, and second outlet is communicated with the inlet of described machine oil cooler; First inlet of the outlet of described body and described power unit is communicated with, unlike the prior art be, power unit provided by the present invention also comprises second inlet, the outlet of described machine oil cooler enters the mouth with second of described power unit and directly is communicated with.Cooling medium carries out exchange heat with machine oil in machine oil cooler after, cooling medium comes back to second inlet of power unit, enters in the cooling recirculation system once more after the power unit pressurization.In the prior art, cooling medium enters the body of motor through the outlet of machine oil cooler, owing to itself have certain pressure in the body, otherwise cooling medium can not be circulated back to power unit through body, and this pressure forms the back pressure of machine oil cooler.Cooling medium is directly got back to power unit through machine oil cooler can make the back pressure of machine oil cooler be reduced to zero, even may to have back pressure be situation about bearing.Therefore, the flowing velocity of the cooling medium in the machine oil cooler can obviously improve, and the heat exchange efficiency of cooling medium and machine oil also is improved significantly, thereby effectively improves the cooling effectiveness of machine oil.This circulatory system does not need to change existing machine oil cooler size, its heat diffusion area also remains unchanged, promptly keeping on the basic basis of invariable of oil-cooled cost, cooling effectiveness is improved significantly, thereby the service behaviour of motor and reliability also are improved.
A kind of preferred embodiment in, the circulatory system provided by the present invention also comprises temperature control parts and the radiator of all being located between described body and the described power unit, the inlet of these temperature control parts is communicated with the outlet of described body; Described power unit also comprises the 3rd inlet, first outlet of described temperature control parts is communicated with the 3rd inlet of described power unit, second outlet of described temperature control parts is communicated with the inlet of described radiator, and the outlet of described radiator is communicated with first inlet of described power unit; Described temperature control parts are controlled its first outlet or second port opening according to the temperature of described cooling medium.The temperature control parts can detect the temperature of cooling medium, and when the temperature of cooling medium during greater than predetermined value, first port opening of temperature control parts, cooling medium enters radiator, enters power unit after the cooling again, and circulation is lowered the temperature to machine oil; When the temperature of cooling medium during less than predetermined value, second port opening of temperature control parts is communicated with the 3rd inlet of power unit, and cooling medium directly enters power unit, repetitive cycling.Like this, when the temperature of cooling medium is not high, can save part circulating path in the radiator, improve cooling effectiveness.
In another preferred embodiment, the circulatory system provided by the present invention also comprises the fan corresponding with described heat sink location, and when the detected temperature of temperature control parts was too high, fan can be lowered the temperature by additional cooler, makes the cooling-down effect of system better.
Providing on the basis of the above-mentioned circulatory system, the present invention also provides a kind of motor that comprises the above-mentioned circulatory system; Because the circulatory system has above-mentioned technique effect, the motor with this circulatory system also has the corresponding techniques effect.
Description of drawings
Fig. 1 is a kind of representative engine machine oil cooling water recirculation system schematic representation in the prior art;
Fig. 2 is the fundamental diagram of a kind of embodiment of engine oil cooling circulation system provided by the present invention;
Fig. 3 is the fundamental diagram of the another kind of embodiment of engine oil cooling circulation system provided by the present invention.
Embodiment
Core of the present invention provides a kind of engine oil cooling circulation system that is used for motor, and this circulatory system can not increase the cooling cost of machine oil, can effectively improve the cooling effectiveness of machine oil simultaneously.Another core of the present invention provides a kind of motor that comprises the above-mentioned circulatory system, and this efficiency of engine is improved.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the fundamental diagram of a kind of embodiment of engine oil cooling circulation system provided by the present invention, and direction shown in the arrow is the circulating direction of cooling medium among the figure.
Need to prove that machine oil as herein described means the lubricant oil in the motor; Connection as herein described comprises direct connection, also comprises indirect communication.The circulatory system provided by the present invention is used for the machine oil of cooled engine, and the oil temperature of motor is remained within the zone of reasonableness, guarantees the motor proper functioning, improves the reliability of motor.
This circulatory system comprises power unit 3 and machine oil cooler 4, and power unit 3 circulates cooling medium for cooling medium provides circulation power in motor; Cooling medium and machine oil heat exchange in the machine oil cooler 4 reduce oil temperature, and coolant temperature raises; First outlet 321 of power unit 3 is communicated with body 2 inlet 21 of motor, and second exports 322 is communicated with the inlet 41 of machine oil cooler 4; First inlet 311 of the outlet 22 of body 2 and power unit 3 is communicated with, unlike the prior art be, power unit 3 provided by the present invention also comprises second inlet 312, the outlet 42 of machine oil cooler 4 and second of power unit 3 enter the mouth and 312 directly are communicated with.Cooling medium carries out exchange heat with machine oil in machine oil cooler 4 after, cooling medium directly comes back to second inlet 312 of power unit 3, enters in the cooling recirculation system once more after power unit 3 pressurizations.Obviously, the connecting tube between second inlet 312 of the outlet 42 of machine oil cooler 4 and power unit 3 does not influence direct-connected effect, and direct connection herein can be understood as any parts that are not provided with between the two except that valve and pipeline.
In the prior art, cooling medium enters the body 2 of motor through the outlet 42 of machine oil cooler 4, owing to itself have certain pressure in the body 2, otherwise cooling medium can not be circulated back to power unit 3 through body 2, this pressure forms the back pressure of machine oil cooler 4.Cooling medium is directly got back to power unit 3 through machine oil cooler 4 can make the back pressure of machine oil cooler 4 be reduced to zero, even may to have back pressure be situation about bearing.
Therefore, the flowing velocity of the cooling medium in the machine oil cooler 4 can obviously improve, and the heat exchange efficiency of cooling medium and machine oil also is improved significantly, thereby effectively improves the cooling effectiveness of machine oil.This circulatory system does not need to change existing machine oil cooler 4 sizes, its heat diffusion area also remains unchanged, promptly keeping on the basic basis of invariable of oil-cooled cost, cooling effectiveness is improved significantly, thereby the service behaviour of motor and reliability also are improved.
Please refer to Fig. 3, Fig. 3 is the fundamental diagram of the another kind of embodiment of engine oil cooling circulation system provided by the present invention, and direction shown in the arrow is the circulating direction of cooling medium among the figure.
In a kind of concrete mode of execution, the circulatory system provided by the present invention also comprises temperature control parts 6 and radiator 5, and temperature control parts 6 and radiator 5 all are located between body 2 and the power unit 3.Wherein, the inlet 61 of temperature control parts 6 is communicated with the outlet 22 of body 2; Power unit 3 also comprises the 3rd inlet 313, first outlet 621 of temperature control parts 6 is communicated with the 3rd inlet 313 of power unit 3, second outlet 622 of temperature control parts 6 is communicated with the inlet 51 of radiator 5, and the outlet 52 of radiator 5 and first of power unit 3 enter the mouth and 311 be communicated with; Temperature control parts 6 are controlled its first outlet, 621 or second outlet 622 according to the temperature of cooling medium and are opened.
Temperature control parts 6 can detect the temperature of cooling medium, and when the temperature of cooling medium during greater than predetermined value, first outlet 621 of temperature control parts 6 is opened, be communicated with the inlet 51 of radiator, cooling medium enters radiator 5, enters power unit 3 after the cooling again, and circulation is lowered the temperature to machine oil; When the temperature of cooling medium during less than predetermined value, second outlet 622 of temperature control parts 6 is opened, and is communicated with the 3rd inlet 313 of power unit 3, and cooling medium directly enters power unit 3, repetitive cycling.Like this, when the temperature of cooling medium is not high, can save 5 li part circulating paths of radiator, improve cooling effectiveness.
Further, the circulatory system provided by the present invention also comprises the fan 7 corresponding with radiator 5 positions, and when temperature control parts 6 detected temperature were too high, fan 7 can be lowered the temperature by additional cooler 5, makes the cooling-down effect of system better.
In a kind of concrete mode of execution, temperature control parts 6 as herein described are specifically as follows thermostat, and thermostat can be gathered the temperature of cooling medium, and convert temperature signal to power signal, make unlatchings in first outlet, 621 and second outlet 622, another person closes.Thereby directly circulate when making coolant temperature low and enter power unit 3, enter radiator 5 when temperature is higher, after the cooling cooling, enter power unit 3 again.Frequent when so both having avoided coolant temperature not high through radiator 5 circulations, form energy dissipation; Avoid the too high motor proper functioning that influences of coolant temperature again.
Thermostat is a workpiece commonly used, is easy to buying, can reduce the cost of the circulatory system, also reduces the cost of motor simultaneously.Obviously, temperature control parts 6 include but not limited to thermostat, for example utilize temperature transducer, controller and two-position three way magnetic valve also can realize above-mentioned functions, temperature transducer collecting temperature signal, temperature signal is sent to controller, controller forms control signal according to predetermined policy and is sent to two-position three way magnetic valve, and one in the body 2 that makes motor and power unit 3 and the radiator 5 is communicated with.Obviously, the structure of above-mentioned control function also should belong to protection scope of the present invention.
Particularly, above-mentioned cooling medium is specially water, and power unit 3 is specially water pump.Water is low as its cost of cooling medium, is easy to realize, and also less to existing engine motor oil cooling system change, help popularization of the present invention.Obviously, other can also can realize purpose of the present invention with the medium of the effective heat exchange of machine oil, also should be within protection scope of the present invention.
Except the said engine oil cooling recirculation system, the present invention also provides a kind of motor that comprises the said engine oil cooling recirculation system, and the structure of these other each several parts of motor please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned motor can be a diesel engine.
More than motor provided by the present invention and engine oil cooling circulation system thereof are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (7)
1. an engine oil cooling circulation system that is used for motor comprises the machine oil cooler that drives cooling medium circuit power unit and hold described cooling medium and machine oil heat exchange; First outlet of described power unit is communicated with the body inlet of described motor, and second outlet is communicated with the inlet of described machine oil cooler; The outlet of described body is communicated with first inlet of described power unit, it is characterized in that described power unit also comprises second inlet, and the outlet of described machine oil cooler directly is communicated with second inlet of described power unit.
2. the engine oil cooling circulation system that is used for motor according to claim 1 is characterized in that, also comprises temperature control parts and the radiator all be located between described body and the described power unit, and the inlet of these temperature control parts is communicated with the outlet of described body; Described power unit also comprises the 3rd inlet, first outlet of described temperature control parts is communicated with the 3rd inlet of described power unit, second outlet of described temperature control parts is communicated with the inlet of described radiator, and the outlet of described radiator is communicated with first inlet of described power unit; First outlet and second outlet of described temperature control parts are opened, and another person closes.
3. the engine oil cooling circulation system that is used for motor according to claim 2 is characterized in that, also comprises the fan corresponding with described heat sink location.
4. the engine motor oil cooling recirculation system that is used for according to claim 3 is characterized in that described temperature control parts are specially thermostat.
5. according to each described engine oil cooling circulation system that is used for motor of claim 1 to 4, it is characterized in that described cooling medium is specially water, described power unit is specially water pump.
6. a motor comprises machine oil that is used to lubricate and the circulatory system of cooling off described machine oil, it is characterized in that the described circulatory system is as each described engine oil cooling circulation system of claim 1 to 5.
7. motor according to claim 6 is characterized in that, is specially diesel engine.
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| CN 201110042836 CN102086803A (en) | 2011-02-17 | 2011-02-17 | Engine and engine oil cooling circulation system thereof |
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| CN 201110042836 CN102086803A (en) | 2011-02-17 | 2011-02-17 | Engine and engine oil cooling circulation system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412582A (en) * | 2013-07-05 | 2013-11-27 | 中国煤炭科工集团太原研究院 | Engine oil temperature control circulation system of explosion-proof diesel engine performance test platform |
| CN105370377A (en) * | 2014-08-13 | 2016-03-02 | 通用汽车环球科技运作有限责任公司 | Coolant pump control systems and methods for backpressure compensation |
| CN105987860A (en) * | 2015-02-05 | 2016-10-05 | 上海日立电器有限公司 | Method and apparatus for measuring solubility of refrigerant in refrigerant oil |
| US10480391B2 (en) | 2014-08-13 | 2019-11-19 | GM Global Technology Operations LLC | Coolant control systems and methods to prevent coolant boiling |
| CN111663989A (en) * | 2020-07-02 | 2020-09-15 | 潍柴动力股份有限公司 | Engine cooling system and vehicle |
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| US10480391B2 (en) | 2014-08-13 | 2019-11-19 | GM Global Technology Operations LLC | Coolant control systems and methods to prevent coolant boiling |
| CN105987860A (en) * | 2015-02-05 | 2016-10-05 | 上海日立电器有限公司 | Method and apparatus for measuring solubility of refrigerant in refrigerant oil |
| CN105987860B (en) * | 2015-02-05 | 2019-07-12 | 上海海立电器有限公司 | Measure the method and device of refrigerant solubility in refrigerator oil |
| CN111663989A (en) * | 2020-07-02 | 2020-09-15 | 潍柴动力股份有限公司 | Engine cooling system and vehicle |
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Application publication date: 20110608 |