CN102168604B - Motor vehicle with cooled front shaft transmission system - Google Patents
Motor vehicle with cooled front shaft transmission system Download PDFInfo
- Publication number
- CN102168604B CN102168604B CN201110042945.6A CN201110042945A CN102168604B CN 102168604 B CN102168604 B CN 102168604B CN 201110042945 A CN201110042945 A CN 201110042945A CN 102168604 B CN102168604 B CN 102168604B
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- cooler
- transmission system
- shaft transmission
- motor vehicle
- front shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 119
- 238000001816 cooling Methods 0.000 claims abstract description 171
- 239000000498 cooling water Substances 0.000 claims abstract description 94
- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 6
- 239000000659 freezing mixture Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 244000082490 Proboscidea louisianica Species 0.000 description 1
- 235000015926 Proboscidea louisianica ssp. fragrans Nutrition 0.000 description 1
- 235000015925 Proboscidea louisianica subsp. louisianica Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0475—Engine and gearing, i.e. joint lubrication or cooling or heating thereof
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- General Details Of Gearings (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a motor vehicle, comprising a combustion engine (2) and a cooling system (1) for the combustion engine (2). The cooling system (1) comprises at least one cooler (3) installed at the head part of the motor vehicle, a plurality of pipelines (4, 5) for conveying cooling water and a pump (8) for conveying the cooling water to pass through the pipelines (4, 5) and the cooler (3). The motor vehicle is also provided with a front shaft transmission system (12) having a cooling device (13). According to the motor vehicle, the cooling water passes the cooling device (13) of the front shaft transmission system (12), and the cooling device (13) is connected to the cooling system (1) of the combustion engine (2). The motor vehicle with such a structure can ensure to achieve an ideal cooling effect no matter what aerodynamic flowing situation of the front shaft transmission system is.
Description
Technical field
The present invention relates to a kind of motor vehicle, the full wheel driving ejector half motor vehicle that particularly have internal-combustion engine and be used for the cooling system of this internal-combustion engine, wherein, described cooling system comprise at least one be installed in the cooler of motor vehicle head part, a plurality of for delivery of cooling water pipeline and one for delivery of the pump of cooling water by pipeline and cooler, and described motor vehicle have a front shaft transmission system that configures cooling unit.
Background technique
For the full wheel driving ejector half motion car with rear-mounted or central engine, the part of engine power is to transmit by the front shaft transmission system that is configured to front axle differential.The heat that machine oil in the differential casing produces is delivered to the air that flows at the base plate place, and this air flows along the radiated rib of differential casing, thereby described radiated rib has consisted of the cooling unit of front shaft transmission system.
Above-mentioned air cooling can cause following problem when increased power: cooling off required air quantity increases.Therefore consequently, the opening on the base plate is inevitable more and more large in order to reach the purpose of cooling front axle differential.Thus, flow resistance coefficient (Cw value) meeting variation, thus the front axle Driving force is had a negative impact.The air that flows below motor vehicle only has small backpressure, and therefore heat radiation runs into the limit of a physics.
The full wheel driving ejector half motion car type of affiliated technical field is known in the practice.
Also known from practice in addition, with the transmission system of water quench motor vehicle.
Described a kind of transmission device in DE 32 01 443 A1, this device comprises an internal-combustion engine and a gear unit, and this gear unit is provided with heat exchanger.Here, the temperature of described gear unit is to regulate by at least one heat exchanger.At this, described gear unit comprises a speed changer and a main transmission device, and wherein, the temperature of main transmission device is to regulate by an extra heat exchanger.No matter be cooling or the heating to gear unit, all need cooling water is taken out and takes out from the cooling system of internal-combustion engine whereby from the chilled(cooling) water return (CWR), wherein, the cooling water that is used for gear unit takes out from the cooling jacket of internal-combustion engine.The cooling water of drawing from gear unit then is transported in the cooler reflow pipe.For this reason, in the delivery (pipe) line of gear unit, be provided with a recycle pump.
A kind of cooling system of motor vehicle has been described in DE 100 23 519 A1, in this cooling system, be provided with a heat exchanger in order to cool off a kind of transmission device, described heat exchanger selectively is installed in cooler intake pipe or the cooler reflow pipe.
Summary of the invention
The motor vehicle that the present invention is intended to this paper is started described type improve, and make it to guarantee cooling effect that it is desirable and regardless of the aerodynamics flow condition of front shaft transmission system.
Described purpose be by front shaft transmission system cooling unit by cooling water flow through and be connected on the cooling system of internal-combustion engine and realize.
So, thereby for example in full wheel driving ejector half motor vehicle, can carry out front shaft transmission system cooling and regardless of the aerodynamics flow condition of front shaft transmission system.With respect to air cooling, by the cooling of the front shaft transmission system of cooling water, (described cooling water flow is through the cooling unit of front shaft transmission system), substantially more effective.Therefore, in order to cool off front shaft transmission system, except at least one is installed in the cooler in the motor vehicle head part by standard, on front shaft transmission system, also be provided with a cooling unit that separates.
On at least one is installed in cooler in the motor vehicle head part, introduces pipeline before the cooler to cooler especially, and from cooler, draw a cooler reflow pipe.There is circulation to be connected between the cooling water tank circuit of these pipelines and internal-combustion engine etc.
Described cooler reflow pipe preferably disposes a temperature controller, and this temperature controller opens and closes described cooler reflow pipe according to temperature.Especially in heat engine stage of internal-combustion engine, another pipeline connects the front pipeline of cooler and cooler reflow pipe: at this moment, cooling water is carried without the cooler that is installed in the motor vehicle head part, but control described cooler reflow pipe and above-mentioned another pipeline by temperature controller, make cooling water a bit of length by pipeline before the cooler from internal-combustion engine, and pass through therefrom described another Pipeline transport in the cooler reflow pipe, and again arrive in the internal-combustion engine by a bit of length of described cooler reflow pipe.In its open position, at valve of control from described another pipeline to temperature controller described in the transition of cooler reflow pipe.If cooling requirement increases, just close described valve by temperature controller, thereby stop cooling water to flow through through described another pipeline.
Described cooling system is especially so arranged, so that before described pump was arranged on internal-combustion engine, particularly described pump was in the current side of temperature controller back.Therefore cooling liquid is passed through the cooling tank circuit of internal-combustion engine etc. with high-pressure delivery, and carry through the supercooler intake pipe with relatively high pressure therefrom again, and after flowing through the cooler that is installed in the motor vehicle head part, be recycled in the pump through the supercooler reflow pipe with relatively low pressure conveying.
The cooling unit of front shaft transmission system can be connected on the cooling system of internal-combustion engine with method in a different manner.Like this some have determined to be particularly advantageous at the extremely low additional mode of execution that expends aspect cost and the weight especially.The below is elaborated to these alternative alternate embodiments:
Propose according to first flexible program, the intake pipe of the cooling unit of front shaft transmission system is connected on the cooler reflow pipe, and the reflow pipe of the cooling unit of front shaft transmission system is connected to before the cooler on the pipeline, and the connecting tube that forms between the pipeline before cooler reflow pipe and cooler disposes one for delivery of the carried wet of cooling water flow through the cooling unit of front shaft transmission system.
The extracting position place of cooling water on the cooler reflow pipe takes out.Then, carry the cooling water that is heated before the cooler in the pipeline.Because the pressure in the pressure ratio cooler reflow pipe before the cooler in the pipeline is large, so this flexible program need in order to overcome the carried wet of pressure difference, can also additionally produce certain delivering power with described carried wet.Because cooling water temperature raises, can be discharged into more heat in the cooler that is installed in the motor vehicle head part, thereby the engine cooling water system is produced favorable influence.If before temperature controller cooling water is shunted from the cooler reflow pipe, the state ground that just can be independent of temperature controller cools off.It is suitable configuring a valve for attaching troops to a unit in the cooling unit connecting pipeline of front shaft transmission system, and this valve especially is arranged between cooling unit and the front pipeline of cooler.This valve can be controlled, and it closes connecting tube when front shaft transmission system need not to cool off, and perhaps stops the cooling water flow of heat through the cooling unit of front shaft transmission system when pump is closed.
For example described motor vehicle are implemented as and arrange two coolers in motor vehicle head parts, and these two coolers are located beyond being arranged at the motor vehicle middle part, from but the side cooler.In this case, pipeline suitably is connected by two coolers of a three-way pipe and this before the cooler, and correspondingly, the cooler reflow pipe is connected with the cooler reflow pipe by a three-way pipe.In this case, the interface of connecting tube that is used for the cooling unit of front shaft transmission system advantageously is connected to the three-way pipe of two side coolers.As alternative replacement scheme, also can be on the link that is directly connected on the connecting pipeline.
Thereby by means of above-mentioned flexible program, can reach desirable cooling effectiveness in order to make front shaft transmission system, wherein, only need small change is done on the cooling water pipe of engine road, particularly, only need to adopt two side coolers to change this two three-way pipes.The arrangement of described cooling unit and engine-cooling system is produced a kind of active influence with being connected of cooling system.Yet, owing to must overcome the pressure difference of engine cooling circuit between the front pipeline of cooler and the cooler reflow pipe, need to adopt the relatively powerful pump of power, consequently power consumption is relatively high, weight large and cost increases.
According to second flexible program, an intake pipe and a return line of the cooling unit of front shaft transmission system are connected on the cooler return line, and, the distribution pipeline of the cooling unit of front shaft transmission system disposes a carried wet, flows through the cooling unit of front shaft transmission system in order to carry cooling water.Therefore, according to this flexible program, cooling water takes out in the cooler return line, and wherein, the cooling water that is heated is transported to again in the cooler return line.Carried wet used in this flexible program only need to produce essential delivering power.Be drawn out of as " cold " water in the engine cooling water loop of cooling water after cooler, described carried wet is carried this cooling water the cooling unit of process front shaft transmission system, and the cooling water that will be heated sends in the cooler return line, in the cold pipeline of namely engine cooling water loop.By this connecting means, cooling is to carry out when temperature controller is opened, thereby namely cooler on the motor vehicle head part carries out during to internal-combustion engine by the cooler return line flow from being installed at cooling water.It is significant that this application and a characteristic family temperature controller are combined, and described characteristic family temperature controller can be opened according to the temperature of front shaft transmission system.Thus, front shaft transmission system disposes a temperature transducer.Valve that suitably arranges is used for not have in the situation of conveying at the cooling unit and the pump that do not wish water and flow through front shaft transmission system, guarantee not have the cooling arrangement that water flows through front shaft transmission system, this valve disposes the pipeline from cooler reflow pipe fork for the cooler of front shaft transmission system.
In this flexible program, suppose that in principle the temperature controller on the internal-combustion engine is opened the cooling circuit of motor vehicle.Owing to following travelling state (for example extremely low external temperature) may occur, wherein front shaft transmission system acutely heats up, but internal-combustion engine only drives by short-circuit cycle and Heating Cyclic, that is to say that temperature controller remains closes, according to a kind of modification of this second flexible program, cooling system starts refrigerating function automatically to this running state so.For this reason, can set up a bypass that when front shaft transmission system cools off, can be opened as required around temperature controller in principle, also can propose directly to control temperature controller by the cooling unit of front shaft transmission system.Yet the two all means the brute force intervention to the adjusting of car load cooling system.
For being very difficult for this to happen, another pipeline can be set, this pipeline can make freezing mixture flow to the front pipeline of cooling system from the cooling unit of front shaft transmission system in the situation that temperature controller cuts out.Because in this case, between the front pipeline of cooler and reflow pipe, there is not pressure difference, so can utilize carried wet that the reflow pipe of freezing mixture from cooling system is transported to the front pipeline of motor vehicle cooling system through the cooling unit of front shaft transmission system.Can provide from the cooling water in the cooling system reflow pipe to the cooling unit of front shaft transmission system with regard to having guaranteed like this.To carry again in the reflow pipe of getting back to cooling system by the cooling unit of front shaft transmission system from the water in the cooling system reflow pipe for preventing carried wet, in the cooling unit of front shaft transmission system and the reflow pipe between the cooling system reflow pipe, be provided with valve, especially a mushroom valve.In addition, open at temperature controller, and when not wishing liquid and flowing through the cooling unit of front shaft transmission system, described valve can also stop cooling water flow through the cooling unit of front shaft transmission system.Because the pressure difference that exists when temperature controller is opened can cause freezing mixture along being flowed by heat to cold direction, for preventing the generation of this situation, in the cooling unit of front shaft transmission system and the reflow pipe between the cooling system reflow pipe, safety check is set especially.
This system all can be used to from the cooling water that cools off system's reflow pipe the cooling unit of front shaft transmission system be implemented cooling in all working point as required, and need not temperature controller is controlled or adjunction shunt on temperature controller.Therefore, this system has for another of the cooling unit of front shaft transmission system and is connected to the reflow pipe on the pipeline before the cooler, in addition, also is provided with the device that is used to open or close reflow pipe and another reflow pipe.
If what adopt is the side cooler, then in this flexible program, an interface of distribution pipeline can realize at the three-way pipe that is used for two side coolers are shunted, and another interface is then realized at the water-cooling tube of the cooler reflow pipe that is connected with described three-way pipe.
In this flexible program, can not exert an influence to engine cooling circuit, and can obtain desirable cooling effectiveness for front shaft transmission system.It needs one only to need relatively low power carried wet and a valve.But it need to do large-scale the change to the cooler reflow pipe, and it can cause the increase to controlling cost, particularly in the situation that adopt the characteristic family temperature controller.
Propose according to the 3rd flexible program, an intake pipe that is used for the cooling unit of front shaft transmission system is connected to the front pipeline of cooler, and a reflow pipe that is used for the cooling unit of front shaft transmission system is connected to the cooler reflow pipe.Therefore, cooling water takes out from the front pipeline of cooler, and wherein, the cooling water that has been heated is transported in the cooler reflow pipe.Because in this flexible program, pressure in the front pipeline of cooler in the existing pressure ratio cooler reflow pipe is high, since the existence of pressure difference, thus do not need pump to transmit cooling water through the cooling unit of front shaft transmission system, thereby do not need carried wet yet.If partly arrange two side coolers at motor vehicle head, the interface that then is used for the pipeline of two cooling units that flow to front shaft transmission system is implemented at three-way pipe, is used for the shunting on two side coolers.The cooling of cooling unit realizes when temperature controller is opened.A characteristic family temperature controller should be set in this flexible program, and this temperature controller can be opened according to the temperature of front shaft transmission system.Should be noted that the limiting temperature of engine cooling water herein.
Therefore this possibility is arranged, as long as the oil temperature of front shaft transmission system is lower than the temperature of cooling water, with regard to the lubricant oil of the enough cooling water heating of energy front shaft transmission system in this flexible program.Whereby, can shorten the high loss zone of high friction (viscosity) in the blowdown firing.The prerequisite of this function is the through-flow of cooling system.When opening, the cooling water reflow pipe of being regulated by temperature controller meets this precondition.But adopt film to ring the temperature controller of the characteristic family of its lift for this reason.
In described flexible program, the cooling front shaft transmission system requires the cooling circuit of motor vehicle to open, and especially temperature controller is opened the cooling circuit of motor vehicle on the motor.But, owing to following travelling state (for example extremely low external temperature) may occur, wherein front shaft transmission system acutely heats up, but internal-combustion engine only drives by short-circuit cycle and Heating Cyclic, that is to say that temperature controller remains closes, and can automatically start refrigerating function for the described system of this running state so.Therefore, according to a modification of the 3rd flexible program, in the cooling water pipeline of the cooling unit that leads to front shaft transmission system, introduce a carried wet.Then, this carried wet is delivered to from the front pipeline of cooling system cooling water the reflow pipe side of cooling system through the cooling unit of front shaft transmission system.Because the reflow pipe that is connected on the motor is closed by temperature controller, so water can flow to cooler, then flow back into again therefrom front pipeline side, and stress newly to be inhaled into from this front pipeline.Under this running state, through the flow direction of supercooler reversing has occured also.If now main cooling system is opened gradually, so, carried wet or cooperate as auxiliary device, perhaps the pressure difference in main cooling system enough is closed in the large situation.In this state, the cooling of front shaft transmission system after basically as described to the 3rd flexible program, turn round.
In addition, the temperature that can also see cooling water in the front pipeline unnecessarily heats the machine oil in the front shaft transmission system and therefore increases a kind of running state of loading.Although close carried wet, it still keeps flowing through certain surplus water as flowing-passed pump.For this running state, need to additionally in the cooling line of cooling unit of front shaft transmission system a shut off valve be installed to block cooling line flowing into or flow out.Therefore in the modification of described the 3rd flexible program, the ram's horns of the cooling unit of front shaft transmission system disposes a carried wet, in order to carry cooling water through the cooling unit of front shaft transmission system, wherein, in the situation that the reflow pipe that leads to internal-combustion engine is closed, described carried wet is transported to cooling water the reflow pipe side of cooler.
Above-mentioned the 3rd flexible program is characterised in that its low cost (especially owing to abandoned carried wet), low additional weight and to the seldom change of water-cooling tube, these change in fact with the first flexible program in corresponding, but more than in the second flexible program.Yet the cooling line in the 3rd flexible program is very little, and this is because they depend on the pressure difference between the pipeline and cooler reflow pipe before the cooler, and the cooling water temperature in the front pipeline is obviously higher.
According to a preferred embodiment, the cooling unit of front shaft transmission system mainly is that the housing by front shaft transmission system consists of with a tank that links to each other with described housing below, and this tank has the cooling water connector for cooling water inlet pipe and reflow pipe.The housing of front shaft transmission system has radiated rib especially, and these radiated ribs extend into and are formed between housing and the bottom and among the slot space between the sidewall of described tank.Guarantee that thus the heat transmission between the housing of cooling water and front shaft transmission system has good especially efficient.
Description of drawings
Shown the preferred embodiments of the present invention in the accompanying drawing, the below will be described in detail these embodiments.In the accompanying drawings:
Fig. 1 schematically shows the first flexible program of the cooling system of full wheel driving ejector half motor vehicle,
Fig. 2 shows in the motor vehicle head part shown in Figure 1 and the structural design of the cooling system of front shaft transmission system with worm's eye view,
Fig. 3 and Fig. 4 illustrate according to the diagram of part illustrated in figures 1 and 2 at the second flexible program,
A kind of very little modification of the second flexible program among the schematically illustrated Fig. 3 of Fig. 5,
Fig. 6 and Fig. 7 illustrate according to Fig. 1 and Fig. 2 and Fig. 3 and part shown in Figure 4 diagram at the 3rd flexible program, and
A kind of very little modification of the 3rd flexible program among the schematically illustrated Fig. 6 of Fig. 8.
Embodiment
The cooling system of hereinafter the three basic flexible program being set forth relates to a kind of full wheel drive motor vehicle, relate in particular to and have moving vehicle rear-mounted or central engine and all wheel driving apparatus, in described all wheel driving apparatus, the part in the power of IC engine is by a front shaft transmission system transmission.This moving vehicle partly has two side coolers at headstock, wherein, in Fig. 1, Fig. 3 and schematic diagram shown in Figure 5, has only shown a cooler in order to simplify.
The first flexible program sees Fig. 1 and Fig. 2:
The schematic diagram of cooling system 1 has illustrated internal-combustion engine 2 and cooler 3, also illustrates one and internal-combustion engine 2 is connected to pipeline 4 before the cooler on the cooler 3 and one cooler 3 is connected to cooler reflow pipe 5 on the internal-combustion engine 2.Before cooler in the pipeline 4, before cooler 3, exist than in the cooler reflow pipe 5 after cooler 3 the cooling water pressure p of not far existence
2Larger cooling water pressure p
1The current of cooler reflow pipe 5 of flowing through can be controlled by temperature controller 6, and described temperature controller is also controlled the current of the pipeline 7 of flowing through, this pipeline with cooler before pipeline 4 connect together with cooler reflow pipe 5.Especially, in the hot operation phase of internal-combustion engine 2, close at the cooler reflow pipe 5 of temperature controller 6 upstreams, like this, the downstream area with respect to temperature controller 6 of pipeline 4, pipeline 7 and cooler reflow pipe 5 is transported to internal-combustion engine 2 to cooling water before supercooler.If need cooler 3 with full load cooler Power operation, then need pipeline 7 is closed.In the downstream of temperature controller 6, cooler reflow pipe 5 disposes pump 8, to carry cooling water in cooling circuit.Pump 8 makes the cooling line of cooling water process internal-combustion engine 2 etc. with the pressure that improves, and is transported to cooler 3 by pipeline before the cooler 4, then sends back in the cooler reflow pipe 5.
Cooler reflow pipe 5 has bypass conduit 9 in the zone of temperature controller 6, this pipeline disposes valve 10 in order to open and close pipeline 9.Described pipeline 9 is connected on the cooling unit 11 of the motor vehicle transmission that is connected with internal-combustion engine 2.
Described full wheel driving ejector half motor vehicle dispose a front shaft transmission system 12, drive the front-wheel that front axle passes through front shaft transmission system driving machine motor vehicle again by described front shaft transmission system.Described front shaft transmission system is constructed to front axle differential.Front shaft transmission system 12 has cooling unit 13, this cooling unit is made of with the tank 24 that described housing 25 links to each other with a bottom the housing 25 of front shaft transmission system 12 in fact, and this tank has the cooling water connector 23,26 that flows into and flow out for cooling water.
Fig. 1 illustrates, and the intake pipe 14 of cooling unit 13 is connected on the cooler reflow pipe 5, and the reflow pipe 15 of cooling unit 13 is connected on the front pipeline 4 of cooler.Be configured carried wet 16 to this intake pipe for delivery of cooling water through apparatus for supercooling 13.Reflow pipe 15 disposes valve 17.Therefore, for the cooling unit 13 that cools off front shaft transmission system 12, be removed as cold water in the engine cooling water loop of cooling water after cooler 3.Pump 16 overcomes the pressure difference on the cooler, carry cooling water through the cooling unit 13 of front shaft transmission system 12, and the cooling water that will be heated is injected into before the cooler in the pipeline 4.At this, the chilled(cooling) water return (CWR) that the quilt that need to mark is shunted represents with arrow 18.
Fig. 2 illustrates according to the motor vehicle of Fig. 1 cooling principle structural design in the headstock part.
Front shaft transmission system 12 shown in the figure has a torque arm 19, wherein, front shaft transmission system 12 by force closure be connected in the output of internal-combustion engine 2.This kind motor vehicle have two not shown coolers that are arranged in the motor vehicle head part, therefore, pipeline 4 is told forward in the zone of three-way pipe 20 before the cooler, and cooler reflow pipe 5 is also told forward in the zone of three-way pipe 21, thereby so that each cooler correspondingly be connected on described intake pipe and the outlet pipe.The three-way pipe 21 of reflow pipe disposes an extra interface 22, and intake pipe 14 is connected with this interface, and this intake pipe is attached troops to a unit the cooling water connector 23 of carried wet 16 and connection water channel 24, and described tank is connected with the housing 25 of front shaft transmission system 12.Housing 25 has some cooling fins, and described cooling fin stretches into and is formed between housing 25 and the bottom and in the slot space between the sidewall of tank 24.At the diagonal angle of cooling water connector 23, tank 24 has a cooling water connector 26, and reflow pipe 15 links to each other with this cooling water connector.Corresponding with the interface 22 on the three-way pipe 21, three-way pipe 20 has the interface 27 that links to each other with reflow pipe 15.
Fig. 3 and the second flexible program shown in Figure 4 and the difference of flexible program illustrated in figures 1 and 2 only be, cooling unit 13 is in the connection on the cooling system.Therefore, for the purpose of simplifying, the parts consistent with described the first flexible program refer to identical label.
In the flexible program of Fig. 3, intake pipe 14 is connected with cooler reflow pipe 5 equally, yet a lower-powered pump 16 is but arranged.Yet reflow pipe 15 reconnects with cooling water reflow pipe 5 again in the downstream of intake pipe 14.Like this, take out cold cooling water the engine cooling circuit of this less carried wet 16 after cooler 3 and simultaneously it is carried cooling unit 13 through front shaft transmission system 12, and the cooling water that will be heated is transported in the cooler reflow pipe 5 again in the upstream of temperature controller 6 with bypass line 9.Based on such Placement, cooling is to carry out under the state that temperature controller 6 is opened.It is significant that this application is combined with a characteristic family temperature controller, and this characteristic family temperature controller can be opened according to the temperature of the temperature transducer of front shaft transmission system 12.
As from the second flexible program shown in Figure 4 as seen, the embodiment of the second flexible program is compared with the mode of execution of the first flexible program shown in Figure 2, its difference only is at three-way pipe 20 interface 27 not to be set, but cooling water connector is arranged on the cooler reflow pipe 5 in three-way pipe 21 downstreams, and reflow pipe 15 is connected with the cooling water connector 26 of tank 24 by cooling water connector 27.Fig. 5 has shown the minor modifications according to Fig. 3 and described the second flexible program of Fig. 4.Embodiment shown in Figure 5 and embodiment shown in Figure 3 difference are, another reflow pipe 28 of the cooling unit 13 of front shaft transmission system 12 is to be connected on the front pipeline 4 of cooler, this reflow pipe 28 has a safety check 29, described safety check have that preamble mentions from cooling unit 13 to cooler before the circulating direction of pipeline 4.In addition, the mushroom valve 30 in the reflow pipe 15 is to be placed between cooling unit 13 and the cooler reflow pipe 5.Described another reflow pipe 28 so that freezing mixture when temperature controller 6 cuts out, still can flow.Owing to not having pressure difference between the front pipeline of cooler 3 and the reflow pipe in this case, so can utilize carried wet 16 that the reflow pipe of freezing mixture from cooling system is transported to the front pipeline of cooling system by cooling unit 13.Mushroom valve 30 stops carried wet 16 that the reflow pipe of water from cooling system is transported to the reflow pipe of cooling system again by cooling unit 13.In addition, when temperature controller 6 was opened and do not wished liquid and flows through cooling unit 13, described mushroom valve can stop cooling water flow through cooling unit 13.Because the pressure difference that exists when temperature controller 6 is opened can cause freezing mixture along being flowed by heat to cold direction, so need to safety check 29 be installed to prevent this from occurring in reflow pipe 28.
Fig. 6 and the 3rd flexible program of being connected also only are cooling unit 13 being connected on cooling circuit with difference between previously described two flexible programs.Therefore, the parts consistent with described first, second flexible program of preamble also refer to identical label.
As from schematic diagram shown in Figure 6 as seen, cooling water takes out the pipeline 4 before cooling water, the cooling water that therefore takes out is hot.This cooling water is guided through the cooling unit 13 of front shaft transmission system 12, and is transported to again in the cooler reflow pipe of temperature controller 6 and the upstream of bypass line 9.Because existing pressure difference on the cooler 3, thereby do not need to come guide cooling water to pass through cooling unit 13 with pump, do not need with pump cooling water to be transported in the cooler reflow pipe yet.As from embodiment shown in Figure 7 as seen, the interface 22 of water inlet 14 on three-way pipe 20 is advanced to interface 23, and 15 the interfaces 27 on three-way pipe 20 that reflux are advanced to interface 26.
Fig. 8 illustrates the tiny modification with reference to Fig. 6 and the 3rd flexible program illustrated in fig. 7.In modification shown in Figure 8, the intake pipe 14 that leads to the cooling unit 13 of front shaft transmission system 12 has carried wet 16, and reflow pipe 15 has shut off valve/mushroom valve 30.If temperature controller 6 cuts out, and travelling state to be front shaft transmission system 12 be subjected to heat intensive, internal-combustion engine 2 just can start refrigerating function for this running state by means of the scheme of this modification automatically fully by short-circuit cycle and Heating Cyclic running.At this, described carried wet 16 is transported to cooling water pipeline 4 before cooler the cooling unit 13, and is transported to therefrom in the cooler reflow pipe 5 again.Because the reflow pipe that is connected on the internal-combustion engine 2 is closed by temperature controller 6, so water flows to cooler 3, then again flow back into therefrom in the front pipeline 4 of cooler, and here again sucked again.Under this running state, reversing has also occured in the flow direction by cooler 3.If at this moment main cooling system is opened gradually, so, carried wet 16 or cooperate as auxiliary device, perhaps pressure difference is closed when enough large and pump 8 is in initiate mode in cooling system 1.In this state, the cooling of front shaft transmission system 12 is as moving with reference to the basic flexible program of Fig. 6 and Fig. 7 explanation.The temperature that it is also conceivable that cooling water in the front pipeline has unnecessarily heated the machine oil in the front shaft transmission system and has therefore increased the running state of loading.Even carried wet 16 is closed and also still be can be used as flowing-passed pump and allow surplus water Free-flow mistake.For this running state, flowing into or flowing out in the cooling line (reflow pipe 15 in mode of execution shown in Figure 8) of front shaft transmission system, shut off valve 30 also additionally is installed to stop it.
The reference number inventory
1 cooling system
2 internal-combustion engines
3 coolers
Pipeline before 4 coolers
5 cooler reflow pipes
6 temperature controllers
7 pipelines
8 pumps
9 bypass lines
10 valves
11 speed changers
12 front shaft transmission systems
13 cooling units
14 intake pipes
15 reflow pipes
16 carried wets
17 valves
18 cooling circuits
19 torque arms
20 three-way pipes
21 three-way pipes
22 interfaces
23 interfaces
24 tanks
25 housings
26 interfaces
27 interfaces
28 reflow pipes
29 safety check
30 mushroom valves
Claims (17)
1. motor vehicle, described motor vehicle have an internal-combustion engine (2) and a cooling system (1) that is used for this internal-combustion engine (2), wherein said cooling system (1) comprises that at least one is installed in the cooler (3) of described motor vehicle head part, a plurality of pipelines (4 for delivery of cooling water, 5) and one carry cooling water through described pipeline (4,5) and the pump (8) of described cooler (3), and described motor vehicle also have a front shaft transmission system (12), this front shaft transmission system disposes a cooling unit (13), it is characterized in that, cooling water flows through the cooling unit (13) of described front shaft transmission system (12), and described cooling unit is connected on the cooling system (1) of described internal-combustion engine (2).
2. motor vehicle according to claim 1 is characterized in that, introduce the front pipeline (4) of a cooler to described cooler (3), and draw a cooler reflow pipe (5) from described cooler (3).
3. motor vehicle according to claim 2 is characterized in that, described cooler reflow pipe (5) disposes a temperature controller (6), are used for opening and closing described cooler reflow pipe (5) according to temperature.
4. each described motor vehicle in 3 according to claim 1 is characterized in that, with reference to cooling water through described internal-combustion engine (2), at the front pump (8) that arranged of described internal-combustion engine (2).
5. motor vehicle according to claim 2, it is characterized in that, an intake pipe (14) of described cooling unit for front shaft transmission system (12) (13) is connected to described cooler reflow pipe (5), and a reflow pipe (15) of the cooling unit (13) of front shaft transmission system (12) is connected on the front pipeline (4) of described cooler, and the connecting pipeline (14 that before cooler reflow pipe (5) and cooler, forms between the pipeline (4), 15) dispose a carried wet (16), be used for carrying cooling water through being used for the cooling unit (13) of front shaft transmission system (12).
6. motor vehicle according to claim 5 is characterized in that, described connecting pipeline (14,15) disposes a shut off valve (17).
7. motor vehicle according to claim 3, it is characterized in that, an intake pipe (14) and a reflow pipe (15) of described cooling unit for front shaft transmission system (12) (13) are connected to described cooler reflow pipe (5), and be used for the distribution pipeline (14 of the cooling unit (13) of described front shaft transmission system (12), 15) dispose a carried wet (16), be used for carrying cooling water through being used for the cooling unit (13) of described front shaft transmission system (12).
8. motor vehicle according to claim 7, it is characterized in that, another reflow pipe (28) of described cooling unit for front shaft transmission system (12) (13) is connected to the front pipeline (4) of described cooler, but also is provided with the device that is used to open or close described reflow pipe (15) and described another reflow pipe (28).
9. motor vehicle according to claim 2, it is characterized in that, an intake pipe (14) that is used for the cooling unit (13) of described front shaft transmission system (12) is connected to pipeline (4) before the described cooler, and a reflow pipe (15) that is used for the cooling unit (13) of described front shaft transmission system (12) is connected to described cooler reflow pipe (5).
10. motor vehicle according to claim 9, it is characterized in that, the distribution pipeline (14 that is used for the cooling unit (13) of described front shaft transmission system (12), 15) dispose a carried wet (16), in order to carry cooling water to pass through cooling unit (13) for described front shaft transmission system (12), wherein when the reflow pipe that flows to internal-combustion engine (2) was closed, described carried wet (16) was transported to cooling water the reflow pipe side of described cooler.
11. motor vehicle according to claim 3, it is characterized in that, through-flow with reference to cooler reflow pipe (5), the pipeline (14,15) that is used for the cooling unit (13) of described front shaft transmission system (12) is connected with described cooler reflow pipe (5) in the front of described temperature controller (6).
12. motor vehicle according to claim 1 and 2, it is characterized in that, headstock part at these motor vehicle is equipped with a plurality of coolers (3), and be provided with distribution devices (20,21), described distribution devices is used for that cooling water is assigned to these coolers (3) and is used for converging cooling water from these coolers (3), wherein at least one distribution devices (20 or 21) disposes an extra interface (22,27) to be used for the cooling unit (13) of described front shaft transmission system (12).
13. motor vehicle according to claim 1 and 2, it is characterized in that, the cooling unit (13) of described front shaft transmission system (12) is in fact to be made of the tank (24) that the housing (25) of described front shaft transmission system (12) and a bottom link to each other with described housing (25), described tank has the cooling water connector (23,26) for described cooling water inlet pipe (14) and reflow pipe (15).
14. motor vehicle according to claim 13, it is characterized in that, the housing (25) of described front shaft transmission system (12) has radiated rib, and these radiated ribs extend into and are formed between described housing (25) and the bottom and in the slot space between each sidewall of described tank (24).
15. motor vehicle according to claim 1 is characterized in that, described motor vehicle are full wheel driving ejector half motor vehicle.
16. motor vehicle according to claim 4 is characterized in that, described pump (8) is after flow side is arranged in described temperature controller (6).
17. motor vehicle according to claim 12 is characterized in that, each distribution devices (20,21) all disposes an extra interface (22,27) to be used for the cooling unit (13) of described front shaft transmission system (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010009508.7 | 2010-02-26 | ||
| DE102010009508.7A DE102010009508B4 (en) | 2010-02-26 | 2010-02-26 | Motor vehicle with cooled front axle drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168604A CN102168604A (en) | 2011-08-31 |
| CN102168604B true CN102168604B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110042945.6A Active CN102168604B (en) | 2010-02-26 | 2011-02-18 | Motor vehicle with cooled front shaft transmission system |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102168604B (en) |
| DE (1) | DE102010009508B4 (en) |
| IT (1) | IT1403330B1 (en) |
| RU (1) | RU107758U1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9796244B2 (en) | 2014-01-17 | 2017-10-24 | Honda Motor Co., Ltd. | Thermal management system for a vehicle and method |
| WO2017081217A1 (en) | 2015-11-13 | 2017-05-18 | Borgwarner Sweden Ab | Controlling lubrication in a stand-alone rear axle drive |
| DE102017008076A1 (en) | 2017-08-25 | 2018-01-25 | Daimler Ag | Cooling device and motor vehicle |
| CN112444049A (en) * | 2019-09-03 | 2021-03-05 | 株洲中车时代电气股份有限公司 | Transmission system cooling device and method based on independent refrigerant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4204293C1 (en) * | 1992-02-13 | 1993-08-26 | Steyr-Daimler-Puch Ag, Wien, At | Auxiliary drive for four-wheel drive vehicle - is liquid filled friction coupling using thermostatically controlled radiator by=pass line in engine cooling water circuit |
| US6349680B1 (en) * | 1999-09-09 | 2002-02-26 | Dr. Ing. H.C.F. Porsche Ag | Cooling device for an internal combustion engine |
| CN200988424Y (en) * | 2006-12-21 | 2007-12-12 | 王春海 | Improved structure of four wheel vehicle cooling system |
| DE102008029340A1 (en) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Cooling circuit arrangement for motor vehicle, has engine cooling circuit for cooling internal-combustion engine, in which engine heat transducer and engine coolant pump are arranged |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201443A1 (en) | 1982-01-19 | 1983-05-19 | Daimler-Benz Ag, 7000 Stuttgart | Drive unit, especially for motor vehicles |
| DE3331131A1 (en) | 1983-08-30 | 1985-03-07 | Volkswagenwerk Ag, 3180 Wolfsburg | Cooling device for drive axles |
| DE19625357B4 (en) | 1996-06-25 | 2009-06-18 | Zf Friedrichshafen Ag | Transmission integrated heat exchanger |
| DE10023519A1 (en) | 2000-05-13 | 2002-01-03 | Zahnradfabrik Friedrichshafen | Cooling system for vehicles |
| DE10301564A1 (en) | 2003-01-16 | 2004-08-12 | Behr Gmbh & Co. Kg | Cooling circuit of an internal combustion engine with low-temperature radiator |
| DE202005005452U1 (en) | 2005-04-06 | 2006-08-17 | Getriebebau Nord Gmbh & Co. Kg | Gear cooler e.g. for cooling gear, has housing wall having exterior surface and inner surface with cooling agent line provided, being in connection with only exterior surface of housing wall |
| DE102007005391A1 (en) | 2007-02-03 | 2008-08-07 | Behr Gmbh & Co. Kg | Radiator arrangement for a drive train of a motor vehicle |
-
2010
- 2010-02-26 DE DE102010009508.7A patent/DE102010009508B4/en active Active
-
2011
- 2011-02-18 CN CN201110042945.6A patent/CN102168604B/en active Active
- 2011-02-21 RU RU2011106503/11U patent/RU107758U1/en active
- 2011-02-21 IT ITMI2011A000260A patent/IT1403330B1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4204293C1 (en) * | 1992-02-13 | 1993-08-26 | Steyr-Daimler-Puch Ag, Wien, At | Auxiliary drive for four-wheel drive vehicle - is liquid filled friction coupling using thermostatically controlled radiator by=pass line in engine cooling water circuit |
| US6349680B1 (en) * | 1999-09-09 | 2002-02-26 | Dr. Ing. H.C.F. Porsche Ag | Cooling device for an internal combustion engine |
| CN200988424Y (en) * | 2006-12-21 | 2007-12-12 | 王春海 | Improved structure of four wheel vehicle cooling system |
| DE102008029340A1 (en) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Cooling circuit arrangement for motor vehicle, has engine cooling circuit for cooling internal-combustion engine, in which engine heat transducer and engine coolant pump are arranged |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20110260A1 (en) | 2011-08-27 |
| CN102168604A (en) | 2011-08-31 |
| DE102010009508B4 (en) | 2023-01-12 |
| RU107758U1 (en) | 2011-08-27 |
| IT1403330B1 (en) | 2013-10-17 |
| DE102010009508A1 (en) | 2011-09-01 |
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