CN103615302A - Cooling system of engine - Google Patents
Cooling system of engine Download PDFInfo
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- CN103615302A CN103615302A CN201310652502.8A CN201310652502A CN103615302A CN 103615302 A CN103615302 A CN 103615302A CN 201310652502 A CN201310652502 A CN 201310652502A CN 103615302 A CN103615302 A CN 103615302A
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Abstract
The invention relates to a cooling system of an engine. The cooling system comprises a high-temperature waterway cooling system and a low-temperature waterway cooling system. The high-temperature waterway cooling system is used for cooling an engine cylinder body and an oil cooler and comprises a mechanical water pump, a thermostat, a high-temperature radiator, the engine cylinder body, a cylinder cover cooling water channel, an oil cooler cooling channel and a connecting pipeline. The low-temperature waterway cooling system is used for cooling an engine intercooler and a booster and comprises an electronic water pump, a low-temperature radiator, the intercooler, a booster cooling water channel and a connecting pipeline. By cooling of high-low-temperature waterways, stability and reliability of the cooling system are guaranteed. The effect of a low-temperature cooling loop is cooling an intercooling system and a boosting system, and compared with air cooling, more reliability and more stability are achieved.
Description
Technical field
The invention belongs to engine art, specifically refer to a kind of cooling system of direct fuel-injection engine.
Background technique
Along with the development of car engine machine technology, powerful motor constantly promotes, and technology such as the supercharging technology, direct injection technology etc. that promote accordingly engine performance are also just more and more employed.Be accompanied by the powerful performance of motor, thing followed cooling system also becomes increasingly complex.A lot of cooling systems also develop into more stable water-cooled by original air cooling, and the cooling water channel of motor becomes increasingly complex.
The water cooling system of existing utilization is to use a set of cooling system to need cooling part to carry out cooling, such structural advantages to motor to be, can to reduce parts always, is conducive to the layout of motor, and reduces cooling line.Shortcoming is, when cooling water carries out when cooling intercooler, pressurized machine, the temperature of cooling water is higher, can cause sucking the expansion of gas, affects air inflow.
Summary of the invention
The object of the invention is, by existing engine-cooling system being proposed to improve technological scheme, to adopt two-way cooling system, in the situation that reduce the pump load cooling to engine cylinder-body, improve the cooling effect to intercooler and pressurized machine.
The present invention is achieved by the following technical solutions:
A cooling system for motor, includes high-temperature water line cooling system and low temperature water line cooling system;
Described high-temperature water line cooling system is for providing cooling to engine cylinder-body, machine oil cooler; Include mechanical water pump, thermostat, high temperature heat sink, engine cylinder-body and Cooling of Cylinder Head water channel, machine oil cooler cooling channel and connecting tube;
Described low temperature water line cooling system, for providing cooling to engine intercooler and pressurized machine, includes water pump, low-temperature radiator, intercooler and pressurized machine cooling water passage and connecting tube.
The cooling system of described motor also includes water charging system and off gas system; Described water charging system includes water tank and water pipe, and described water pipe includes high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe; Described off gas system includes water tank, degasification pipeline and degasification point.
Described water tank is an expansion kettle or independently high-temperature water tank and low temperature water tank mutually.
The rising pipe of described expansion kettle connects high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe by threeway; And in high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe, be provided with one-way valve, to guarantee in high-low-temperature road that cooling liquid is without channelling.
One end of described high-temperature water line cooling system water pipe is connected to the front end of mechanical water pump; One end of described low temperature water line cooling system water pipe is connected to the front end of water pump.
Totally three of described degasification points, lay respectively at low-temperature radiator feed-water end, high temperature heat sink feed-water end and engine cylinder cover, and above-mentioned three degasification points connect with water tank by threeway and degasification pipeline.
In the degasification pipeline that connects low-temperature radiator and high temperature heat sink, be provided with one-way valve.
In the degasification pipeline that connects low-temperature radiator and high temperature heat sink, be provided with throttle valve.
Described high temperature heat sink and low-temperature radiator are arranged in juxtaposition, after wherein high temperature heat sink is positioned at low-temperature radiator.
The cooling system of described motor also includes cooling fan.
The invention has the beneficial effects as follows:
Cooling by high-low-temperature road, guarantees that cooling system is reliable and stable.Wherein coolant cooling circuit act as cooling ICS intercooler system, more reliable compared with air cooling, stable.
Accompanying drawing explanation
Fig. 1 is the cooling system plan view of patent of the present invention;
Fig. 2 is the cooling system axonometric drawing of patent of the present invention;
Fig. 3 is the systematic schematic diagram of patent of the present invention;
Fig. 4 is the refrigerating function module diagram of patent of the present invention;
Fig. 5 is the moisturizing schematic diagram of patent of the present invention;
Fig. 6 is the degasification point of patent of the present invention;
Fig. 7 is that the low temperature degasification water route valve body of patent of the present invention is arranged;
Fig. 8 is that the high-temperature degassing water route valve body of patent of the present invention is arranged.
Embodiment
Describe by the following examples technological scheme of the present invention in detail, should be understood that, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
As shown in Figures 1 to 8, a kind of cooling system of motor, includes high-temperature water line cooling system and low temperature water line cooling system;
Described high-temperature water line cooling system is for providing cooling to engine cylinder-body, machine oil cooler; Include mechanical water pump and drive, thermostat, high temperature heat sink, engine cylinder-body and Cooling of Cylinder Head water channel, machine oil cooler cooling channel and connecting tube; Its working method is:
In high temperature water route water temperature lower than thermostat 11 open temperature time, engine-cooling system is in short circle pattern, the cooling water high temperature heat sink of not flowing through, now cooling system is inoperative, the rapid warming-up of motor.
When in high temperature water route, water temperature is higher than the opening of thermostat 11, the major cycle of engine cooling water route is opened, and short circle pattern is closed, and cooling water is by engine cylinder cover 22 high temperature heat sink 32 of flowing through.Cooling water, can engine cylinder-body 21 through 12 dozens, mechanical water pump after the heat exchange with air, participates in the cooling of heating component.
Described low temperature water line cooling system, for providing cooling to engine intercooler and pressurized machine, includes electronic water pump 13, low-temperature radiator 31, intercooler 24 and pressurized machine 23 cooling water passages and connecting tube, and its workpiece mode is:
Cooling water is got by electronic water pump 13, continues to flow into pressurized machine 23 and intercooler 24, enters low-temperature radiator 31 after heat exchange.Cooling water, after the heat exchange with air, then is got through electronic water pump 13, forms coolant cooling circuit.
The cooling system of described motor also includes water charging system and off gas system; Described water charging system includes water tank and water pipe, and described water pipe includes high-temperature water line cooling system water pipe 72 and low temperature water line cooling system water pipe 73; Described off gas system includes water tank 71, degasification pipeline and degasification point.
Described water tank is an expansion kettle 71 or independently high-temperature water tank and low temperature water tank mutually.In the present embodiment, use is expansion kettle 71 structures.If independently high-temperature water tank and the low temperature water tank mutually that adopt, high-temperature water tank and low temperature water tank are arranged in juxtaposition, and wherein high-temperature water tank leans on rear layout.
One end of described high-temperature water line cooling system water pipe 72 is connected to the front end of mechanical water pump; One end of described low temperature water line cooling system water pipe 73 is connected to the front end of electronic water pump.Its Placement is for jointly to cause expansion kettle water supplement port (see figure 5) by three-port structure by two moisturizing points, and owing to there being less possible moisturizing channelling situation between mechanical water pump 12 and electronic water pump 13, can be chosen in water pipe or threeway 74 and increase one-way valve structures.
Totally three of described degasification points, lay respectively at low-temperature radiator feed-water end, high temperature heat sink feed-water end and engine cylinder cover, and above-mentioned three degasification points connect with water tank by threeway and degasification pipeline.Its Connecting format is shown in Fig. 6, and after wherein being connected and gathered by threeway between low-temperature radiator degasification point 61, high temperature heat sink degasification point 62 and engine cylinder cover degasification point 63, degassed water flows to expansion kettle 34.
Due to different in different operating mode downforce between three degasification points, there is pressure reduction, wherein engine cylinder cover degasification point 63 is whole system pressure biggest place.Correct for guaranteeing that degasification water route flows to, there is not adverse current phenomenon, need in the degasification pipeline of low-temperature radiator 31, arrange in the degasification pipeline of one-way valve 82 and high temperature heat sink 32 one-way valve 84 is set.Reasonable for guaranteeing except throughput, make cooling performance better, the object of degasification flow shunt minimum need arrange cryogenic throttle valve 81 and high temperature throttle valve 83 in the degasification pipeline of low-temperature radiator 31 and high temperature heat sink 32.The setting type of one-way valve and throttle valve is shown in Fig. 7, Fig. 8.
High temperature heat sink and low-temperature radiator are arranged in juxtaposition, and wherein high temperature heat sink is positioned at low-temperature radiator afterwards and is integrated with cooling fan.High temperature heat sink and low-temperature radiator are corrugated tube type or fin-inserted radiator conventional in automobile.Engine-cooling system need to mate corresponding electronic fan or mechanical fans.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (10)
1. a cooling system for motor, is characterized in that: include high-temperature water line cooling system and low temperature water line cooling system;
Described high-temperature water line cooling system is for providing cooling to engine cylinder-body, machine oil cooler; Include mechanical water pump, thermostat, high temperature heat sink, engine cylinder-body and Cooling of Cylinder Head water channel, machine oil cooler cooling channel and connecting tube;
Described low temperature water line cooling system, for providing cooling to engine intercooler and pressurized machine, includes water pump, low-temperature radiator, intercooler and pressurized machine cooling water passage and connecting tube.
2. the cooling system of motor according to claim 1, is characterized in that: the cooling system of described motor also includes water charging system and off gas system; Described water charging system includes water tank and water pipe, and described water pipe includes high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe; Described off gas system includes water tank, degasification pipeline and degasification point.
3. the cooling system of motor according to claim 2, is characterized in that: described water tank is an expansion kettle or independently high-temperature water tank and low temperature water tank mutually.
4. the cooling system of motor according to claim 3, is characterized in that: the rising pipe of described expansion kettle connects high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe by threeway; And in high-temperature water line cooling system water pipe and low temperature water line cooling system water pipe, be provided with one-way valve, to guarantee in high-low-temperature road that cooling liquid is without channelling.
5. the cooling system of motor according to claim 2, is characterized in that: one end of described high-temperature water line cooling system water pipe is connected to the front end of mechanical water pump; One end of described low temperature water line cooling system water pipe is connected to the front end of water pump.
6. the cooling system of motor according to claim 2, it is characterized in that: totally three of described degasification points, lay respectively at low-temperature radiator feed-water end, high temperature heat sink feed-water end and engine cylinder cover, above-mentioned three degasification points connect with water tank by threeway and degasification pipeline.
7. according to the cooling system of the motor described in claim 2 or 6, it is characterized in that: in the degasification pipeline that connects low-temperature radiator and high temperature heat sink, be provided with one-way valve.
8. according to the cooling system of the motor described in claim 2 or 6, it is characterized in that: in the degasification pipeline that connects low-temperature radiator and high temperature heat sink, be provided with throttle valve.
9. according to the cooling system of the motor described in claim 1 or 6, it is characterized in that: described high temperature heat sink and low-temperature radiator are arranged in juxtaposition, after wherein high temperature heat sink is positioned at low-temperature radiator.
10. the cooling system of motor according to claim 1 and 2, is characterized in that: the cooling system of described motor also includes cooling fan.
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