CN101718217A - Fluid-cooled internal combustion engine with oil cooler and its operating method - Google Patents
Fluid-cooled internal combustion engine with oil cooler and its operating method Download PDFInfo
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- CN101718217A CN101718217A CN200910179724A CN200910179724A CN101718217A CN 101718217 A CN101718217 A CN 101718217A CN 200910179724 A CN200910179724 A CN 200910179724A CN 200910179724 A CN200910179724 A CN 200910179724A CN 101718217 A CN101718217 A CN 101718217A
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- Prior art keywords
- discharge pipe
- oil cooler
- freezing mixture
- coolant
- internal combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
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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
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a fluid-cooled internal combustion engine with an oil cooler and its operating method and discloses the fluid-cooled internal combustion engine with a coolant loop. The loop comprises a coolant casing integrated in a cylinder cover, a supply line for supplying the coolant to the coolant casing and a discharge line for discharging the coolant. The discharge line opens out upstream to a pump that is arranged in the supply line for conveying coolant under formation of the loop in the supply line. A three-two-way valve is provided between a bypass line and the discharge line and connects the pump with an oil cooler by the bypass and discharge lines in a first switching condition. The valve separates the discharge line from the supply line and the bypass line from the discharge line in another condition and connects the cooler with the supply line upstream to the pump via the discharge line. The fuel consumption and friction are optimized in a preheating stage after a cold starting of the internal combustion engine.
Description
Technical field
The present invention relates to have the fluid-cooled internal combustion engine of coolant circuit, this coolant circuit comprises coolant jackets, the supply tube to the coolant jackets supply coolant, the discharge pipe of discharging freezing mixture and the oil cooler of freezing mixture operation that is integrated in the cylinder head.The invention still further relates to the method for the explosive motor of the described type of operation.
Background technique
The explosive motor of the above-mentioned type for example is used in the motor vehicle.At this, the cooling of explosive motor may be designed to the form of air-cooling apparatus or Control device of liquid cooling basically.Because the liquid heat capacity is higher, use the Control device of liquid cooling may be than using the air-cooling apparatus bigger heat that leaves.
For this reason, consider the stable fact that increases of thermal load of motor, the explosive motor of prior art is equipped with Control device of liquid cooling more continually.
Another reason to this is that explosive motor provides supercharging day by day, and for may the most intensive assembling, more the member of big figure for example gas exhaust manifold be integrated in the cylinder head, cause for example bigger increase of thermal load of explosive motor of motor.
Control device of liquid cooling requires explosive motor or cylinder head that coolant jackets is installed promptly must provide the coolant conduit of conveying freezing mixture by cylinder head.Heat needn't at first be transported to cylinder head surface so that dissipate as air cooled situation.Heat has been dissipated to the freezing mixture in the inside of cylinder head, is essentially the water that provides additive.At this, by the pump supply coolant in the supply tube that is arranged on coolant circuit so as the circulation.In this way, the heat that is dissipated to freezing mixture absorbs from freezing mixture from the inside discharging of cylinder head and from the outside of cylinder head once more by discharge pipe, for example by heat exchanger or by absorb some other uses of the freezing mixture of heat from freezing mixture.Therefore the heater of freezing mixture operation might be provided to the passenger cabin of vehicle, and the freezing mixture heating that the heater utilization of this freezing mixture operation is heated in cylinder head is fed to passenger cabin's air, thereby reduces the temperature of freezing mixture.
Yet freezing mixture can also be used to cool off the engine oil of the heating in the equipment that for example cools off other, particularly cooled exhaust gas recirculation (EGR) device or the cooling explosive motor basically.The engine oil of the heating in the cooling explosive motor can use the oil cooler of freezing mixture operation to produce, and this situation in explosive motor is a theme of the present invention, will provide oil cooled general explanation hereinafter for this reason.
Except coolant circuit, the explosive motor of liquid cooling also has oil return line.
Be the moving member of lubricated explosive motor particularly piston, connecting rod, bent axle, camshaft, valve etc., explosive motor provides oil lubrication.For this reason, main fuel supply line extends along cylinder block basically, and particularly crankshaft main bearing is from this main fuel supply line supply oil.
By so-called oil exit pipe and return tube, the oil of assembling at a plurality of points of explosive motor is back to crankcase, promptly enters food tray or enters into the oil sump that is positioned at food tray.Food tray is used as storage vessel and is used for sinking deciding, and wherein oil should cool off in food tray.
Oil cooling but can be realized by oil cooler.At this, oil sump preferably should be installed to improve the dissipation of heat, use radiating fin to increase surface area.The dissipation of heat mainly produces by the convection current of air stream, and air stream is because mobile conveying of travelling of vehicle passed through food tray.Can select to be used to produce the material of food tray with respect to the dissipation of improved heat.
If need, be the bigger heat that dissipates, oil can be fed to oil cooler, and wherein oil cooler itself absorbs heat by air cooling or by liquid cooling from oil.
The oil cooler that theme of the present invention is to use the freezing mixture of the Control device of liquid cooling of explosive motor to operate from the freezing mixture of oil absorption heat, i.e. liquid cooling oil cooler.
According to prior art, for supply coolant arrives oil cooler, freezing mixture is from supply tube branch and be fed to oil cooler, and wherein said freezing mixture reduces the temperature of the oil that flows through oil cooler.
Be essentially the heating explosive motor, promptly after cold starting, make explosive motor reach operating temperature as quickly as possible.In this way, at first demand reduces the discharging of unburned hydrocarbon (HC).Secondly, the exhaust after treatment system that provides requires the minimum temperature of conversion pollutant matter usually.
In fact the target with the fastest possible heating of explosive motor is opposite in the cooling of the engine oil of the warm-up phase of explosive motor.In fact, engine oil should reach specific minimum temperature as quickly as possible at the certain hour after the cold starting of explosive motor, so that oil viscosity has for the favourable value of friction, reduce between the mobile member of oil lubrication of explosive motor and the friction on it.
Friction has considerable influence to the fuel consumption of explosive motor, and reduces the power by the chemical reversion acquisition of fuel, thereby lowers efficiency.Friction consumes the elementary object that reduces so be the reduction fuel consumption.
Secondly, oil should not surpass the maximum temperature that allows, because along with the rising of temperature, viscosity further reduces, the further deterioration of frictional behavior.Too high oil temperature is also quickened oil deterioration, thereby makes the lubrication property deterioration of oil.
Summary of the invention
In aforesaid background, target of the present invention provides the explosive motor of the above-mentioned type, and the warm-up phase of this explosive motor after cold starting allows the optimized operation for fuel consumption and friction.
The target of another part of the present invention is the method that proposes the explosive motor of operation the above-mentioned type.
Realize the target of first portion by the fluid-cooled internal combustion engine with coolant circuit, this coolant circuit comprises the coolant jackets that is integrated in the cylinder head, to the supply tube of coolant jackets supply coolant, and the discharge pipe of discharging freezing mixture, wherein
The upstream that discharge pipe passes the oil cooler of freezing mixture operation and be used for the pump of supply coolant from be arranged on supply tube is communicated to supply tube so that form the loop;
Bypass tube is from the supply tube branch in pump downstream and be communicated to discharge pipe between oil cooler and pump, and
Three/Twoway valves (three/two-way valve) are provided between bypass tube and the discharge pipe, this three/Twoway valves is connected pump to oil cooler by bypass tube with discharge pipe in first switching state, and separate supply tube and discharge pipe, and in second switching state, separate discharge pipe and bypass tube, thus oil cooler connected to supply tube by discharge pipe in the upstream of pump.
In explosive motor according to the present invention, the flow direction that the freezing mixture of carrying by oil cooler flows is reversible, so that engine oil can heat or cool off on request in the oil cooler that uses freezing mixture.
At this, relatively the freezing mixture of low temperature absorbs and is fed to oil cooler so that cooled engine oil from the supply tube in the downstream of pump, or the freezing mixture of introducing relatively-high temperature by discharge pipe to oil cooler so that add deep fat.According to the present invention, particularly according to the switching state of valve, the passing by the fluid in the both direction to small part of oil cooler and discharge pipe.
Reverse for what realize flowing to, use three/Twoway valves promptly to have the valve of three ports and two switching states according to the present invention.
In first switching state of three/Twoway valves, cooled engine oil in the oil cooler of freezing mixture operation.For this reason, the freezing mixture of drawing from the supply tube in the downstream of pump by bypass tube is introduced into discharge pipe and carries by discharge pipe and passes through oil cooler.In described switching state, discharge pipe separates with supply tube, so that the path only by cooler can obtain freezing mixture.Freezing mixture can be supplied in the various uses in the downstream of oil cooler or directly be back to supply tube.The oil of carrying by oil cooler is being back in the supply tube of pump upstream after can being the loop of any special design.
In second switching state of three/Twoway valves, by the freezing mixture heated engine oil in oil cooler that in explosive motor, has heated.For this reason, freezing mixture is carried by oil cooler by discharge pipe after by explosive motor and further is introduced in the supply tube of pump upstream by discharge pipe.In second switching state, bypass tube separates with discharge pipe, and oil cooler is connected to supply tube by discharge pipe.
At the warm-up phase of explosive motor, when valve was in second switching state, freezing mixture was as the acceleration heating of engine oil, so explosive motor reaches its operating temperature quickly after cold starting.Can advantageously reduce friction loss and fuel consumption.
Use according to explosive motor of the present invention can realize the present invention based on the target of first portion, be in particular the warm-up phase that is provided at after the cold starting and allow explosive motor for the optimized operation of fuel consumption and friction.
For forming according to explosive motor of the present invention, carry out from the fluid-cooled internal combustion engine of routine, only need two extra members, be in particular three/Twoway valves and bypass tube, can draw and be introduced into the discharge pipe from supply tube by above-mentioned member freezing mixture.Aspect this, the measure that proposes according to the present invention also is suitable for the explosive motor on the market is carried out retrofit.
According to explosive motor of the present invention, proposition is used for the cost of the pre-thermal property of optimization explosive motor and effectively conceives.The freezing mixture that provides in the explosive motor of liquid cooling not only is used for cooled engine oil as known in the art in principle, but also is used for adding deep fat at warm-up phase.
Particularly also because the additional member of lesser amt, additional member itself only have less relatively component volume, require the modification of coolant circuit is not violated the compact design of explosive motor according to the present invention, so that may the most intensive assembling can the realizing not changing of whole driver element.
The advantageous embodiment of explosive motor comprises that the outlet pipe of cylinder preferably forms common whole outlet pipe in conjunction with at least one gas exhaust manifold that forms in the cylinder head.
The explosive motor thermal load that outlet pipe is combined in the cylinder head is higher, therefore carry by explosive motor or the freezing mixture by cylinder head and also have higher temperature, it is more substantial heat, when freezing mixture is discharged to discharge pipe, can utilize heat promptly to can be used for heated engine oil, this further assists and promptly impels the heating of engine oil in the oil cooler in the warm-up phase of explosive motor.
The advantageous embodiment of explosive motor comprises, coolant circuit promptly particularly discharge pipe, supply tube and/or bypass tube are integrated in the cylinder head at least in part to small part.At first, this design of guaranteeing explosive motor is compact as far as possible.Secondly, may prevent advantageously also that in this way freezing mixture from leaking.
The housing of coolant pump for example directly flange be installed to cylinder head, or can form single member with cylinder head.Two embodiments are characterised in that supply tube constitutes fully-integrated pipe and are followed by pump case and/or cylinder head and form.
In a similar fashion, oil cooler can directly be fixed to explosive motor, promptly is fixed to cylinder block or cylinder head, and that carries discharge pipe by oil cooler can be integrated into contiguous member to small part.
The bypass tube that can be fixed to cylinder head or similar association according to three/Twoway valves provided by the invention is integrated in the cylinder head.
Below the advantageous embodiment of explosive motor will be discussed further.
The advantageous embodiment of explosive motor comprises, provide in parallel with oil cooler of heater of freezing mixture operation.The heater of freezing mixture operation is used for the passenger cabin of heater motor vehicle, and absorbs heat from freezing mixture.The heater that is provided for the passenger cabin is available always, and therefore the closing element of the heater of stopping using preferably is not provided in coolant circuit.
For the same reason, the heater setting of should not connecting with oil cooler is passed through so that heater be can't help the freezing mixture of relative low temperature as oil cooler but be parallel to oil cooler.
Aspect this, the advantageous embodiment of explosive motor comprises, the heater of freezing mixture operation is arranged in the supply tube, and when valve was in first switching state, this supply tube was from discharge pipe branch, particularly in the downstream of oil cooler.Freezing mixture is transported to the supply tube of pump upstream after by heater.
Perhaps, supply tube can also be directly from the coolant jackets of explosive motor or from some other pipe branches of the freezing mixture of carrying relatively-high temperature, as separator tube.
The advantageous embodiment of explosive motor also comprises, the cooler for recycled exhaust gas of freezing mixture operation is provided, and when three/Twoway valves was in second switching state, the cooler for recycled exhaust gas of this freezing mixture operation was arranged in the discharge pipe of upstream of oil cooler.
Exhaust gas recirculatioon (EGR) i.e. recirculation from the exhaust end of explosive motor to the combustion gas of inlet end is the measurement according to the limits value of the limits value in future, particularly discharged nitrous oxides of pollutant emission.Along with the increase of exhaust gas recirculation rate, discharged nitrous oxides might reduce significantly.
For obtaining enough minimizings of discharged nitrous oxides, require high exhaust gas recirculation rate, can be x
EGRThe order of magnitude of ≈ 60% to 70%.
The cooling exhaust gas recirculation helps to realize high cycling rate.Temperature in the exhaust reduces and causes density to increase and less exhaust volume for identical exhaust quality.
Because high exhaust temperature, might be the exhaust of cooling recirculation, the freezing mixture of the relatively-high temperature that uses the freezing mixture of relative low temperature and heated in explosive motor, the setting so that cooler for recycled exhaust gas is connected with the oil cooler in the discharge pipe is particularly basically in the upstream or the downstream of oil cooler.Exhaust gas recirculation is cooled off in two switching positions of valve then, and no matter the flow direction of freezing mixture.
Yet,, when three/Twoway valves is in second switching state, be favourable if cooler for recycled exhaust gas is arranged in the discharge pipe of oil cooler upstream for oil cooler.When three/Twoway valves is in second switching state, the oil that use has been heated in explosive motor adds deep fat, cooler for recycled exhaust gas can advantageously be used for additionally heats coolant before freezing mixture enters oil cooler then particularly, promptly further improve coolant temperature, this promotes the heating of the engine oil in the oil cooler.
When three/Twoway valves is in first switching state, wherein use coolant cools oil, guarantee the setting by the selection of cooler for recycled exhaust gas, freezing mixture is not entered oil cooler at described freezing mixture so that the circuit thermal exhaust heats before the cooled engine oil, and heating will have the opposite effect.
The advantageous embodiment of explosive motor comprises, the short circuit pipe is provided, and this short circuit pipe is from discharge pipe branch and lead to thermostat.The short circuit pipe is characterized in that being specifically designed to makes freezing mixture be back to thermostat, promptly is provided with for pipe at short circuit Guan Zhongwei and disposes and be provided with the device that needs consideration.For this reason, the short circuit pipe makes and himself is integrated at least in part in the member of cylinder head and/or adjacency.
Perhaps, the short circuit pipe is also directly from the coolant jackets of explosive motor or from some other pipe branches of the freezing mixture of carrying relatively-high temperature, as separator tube.
The advantageous embodiment of explosive motor comprises, provides heat exchanger so that absorb heat from freezing mixture.Although heat can also pass through other suitable uses basically, for example the heater by the freezing mixture operation absorbs from freezing mixture, yet provides heat exchanger to be mainly used in a large amount of relatively heat of dissipation.
For vehicle traction, heat exchanger is equipped with and drives or the powerful fan motor of rotary fan impeller, so that can even stop promptly in stationary vehicle or the heat exchanger of sufficiently high MAF to coolant circuit only is provided under low car speed.Fan motor is electric operating basically.
The advantageous embodiment of explosive motor comprises that heat exchanger is a radiator.
About this point, the advantageous embodiment of explosive motor comprises that heat exchanger is arranged in the reflow pipe, and when three/Twoway valves was in second switching state, this reflow pipe was from the discharge pipe branch of the upstream of oil cooler and lead to thermostat.
Perhaps, reflow pipe can also be directly from the coolant jackets of explosive motor or from some other pipe branches of the freezing mixture of carrying relatively-high temperature, as separator tube.
Thermostat for example based on the thermostat of wax element supply with a certain amount of and be blended in the inflow under the different temperatures freezing mixture stream so that from thermostat that flow out and freezing mixture stream that be fed to coolant pump basically subsequently to have predetermined be desired temperatures.
The advantageous embodiment of explosive motor comprises that charge air cooler is arranged in the coolant circuit.Freezing mixture is used for reducing the temperature of the air inlet of introducing and may compressing, thereby increases the density of air.In the air inlet exchange, also may introduce the cylinder of bigger air quality to explosive motor.Charge air cooler helps to improve the air inlet of firing chamber subsequently, is similar to the supercharging of explosive motor.
The advantageous embodiment of explosive motor comprises, ventilation duct is provided, and when three/Twoway valves was in second switching position, this ventilation duct was from the discharge pipe branch of oil cooler upstream and lead to cooling fluid tank.
Perhaps, ventilation duct can also be directly from the coolant jackets of explosive motor or from some other pipe branches of the freezing mixture of carrying relatively-high temperature, as separator tube.Ventilation duct preferably leads to thermostat from cooling fluid tank.
The present invention based on the method for target by a kind of explosive motor of operating the above-mentioned type of second portion realize that wherein the warm-up phase of explosive motor after cold starting operated with three/Twoway valves in second switching state.
Be applied to the method according to this invention equally about the described content of explosive motor according to the present invention.
When three/Twoway valves was in second switching state, at least a portion of freezing mixture was being carried by oil cooler by discharge pipe after coolant jackets is discharged, and engine oil heats in oil cooler by the freezing mixture that has heated in explosive motor.After passing through oil cooler, freezing mixture further is transported to coolant pump by discharge pipe and enters in the supply tube.
Favourable distinct methods comprises that also when explosive motor reached predetermined minimum temperature, three/Twoway valves switched to first switching state from second switching state.In described switching state, the coolant cools engine oil by relative low temperature in oil cooler.
Based on the present invention of Fig. 1 to Fig. 4 more detailed description.
Description of drawings
Schematically illustrated first embodiment of Fig. 1 with explosive motor of the part of coolant circuit and three/Twoway valves in first switching state;
The schematically illustrated embodiment of Fig. 2 with explosive motor as shown in Figure 1 of three/Twoway valves in second switching state;
Schematically illustrated second embodiment of Fig. 3 with explosive motor of the coolant circuit of sealing and three/Twoway valves in first switching state;
The schematically illustrated embodiment of Fig. 4 with explosive motor as shown in Figure 3 of three/Twoway valves in second switching state.
Reference character
1 oil cooler
2 pumps
3 discharge pipes
4 supply tubes
5 bypass tubes
6 three/Twoway valves
7 heaters
8 supply tubes
The 9EGR cooler
10 short circuit pipes
11 thermostats
12 reflow pipes
13 heat exchangers
14 radiators
15 one-way valves
16 explosive motors
17 coolant circuits
18 cooling fluid tanks
19 ventilation ducts
Embodiment
Schematically illustrated first embodiment of Fig. 1 with fluid-cooled internal combustion engine 16 of the part of coolant circuit 17 and the three/Twoway valves 6 in first switching state.
The Control device of liquid cooling of explosive motor 16 comprises the coolant jackets that is integrated in the cylinder head, to the supply tube 4 of coolant jackets supply coolant, and the discharge pipe 3 of discharging freezing mixture.
Freezing mixture is by being arranged on pump 2 supplies in the supply tube 4, and discharge pipe 3 passes the oil cooler 1 of freezing mixture operation and the upstream of the pump from be arranged on supply tube 42 is communicated to supply tube 4 so that form the loop.Bypass tube 5 is from supply tube 4 branches in pump 2 downstreams and be communicated to discharge pipe 3 between oil cooler 1 and pump 2.Three/Twoway valves 6 is provided between bypass tube 5 and the discharge pipe 3.
When three/Twoway valves 6 was in first switching state shown in Figure 1, pump 2 or supply tube 4 were connected to oil cooler 1 by bypass tube 5 and discharge pipe 3, and discharge pipe 3 separates with supply tube 4.The part that discharge pipe 3 is stopped using in described switching state is by shown in the dotted line.
When three/Twoway valves 6 was in first switching state, engine oil is cooling in the oil cooler 1 of freezing mixture operation.Downstream at pump 2 before the coolant jackets that enters explosive motor 16 is drawn freezing mixture by bypass tube 5 from supply tube 4, and freezing mixture enters into discharge pipe 3 and carries by oil cooler 1 by discharge pipe 3.Because discharge pipe 3 separates with supply tube 4, only the path by cooler 1 can obtain freezing mixture.Freezing mixture can be supplied further to be used in the downstream of oil cooler 1.The interface of discharge pipe 3, supply tube 4 is represented by bend pipe.
The embodiment of the schematically illustrated explosive motor 16 as shown in Figure 1 of Fig. 2, wherein three/Twoway valves 6 is in second switching state.The difference that is relevant to switching state is as shown in Figure 1 only described, for this reason with reference to figure 1.Identical reference character is used for identical member.
In second switching state, three/Twoway valves 6 separates bypass tube 5 and is connected the supply tube 4 of oil cooler 1 to the upstream of pump 2 with discharge pipe 3 and by discharge pipe 3.Bypass tube 5 and discharge pipe 3 are separated from one another.The bypass tube 5 of stopping using in described switching state is by shown in the dotted line.
When three/Twoway valves 6 was in described second switching state, engine oil heated in oil cooler 1 by already heated freezing mixture in explosive motor 16.For this reason, freezing mixture is passing through oil cooler 1 by carrying by discharge pipe 3 after the explosive motor 16, and further is introduced in the supply tube 4 of upstream of pump 2 by discharge pipe 3.
Schematically illustrated second embodiment of Fig. 3 with explosive motor 16 of sealing coolant circuit and the three/Twoway valves 6 in first switching position.Difference with respect to as shown in Figure 1 embodiment is only described, for this reason with reference to figure 1.Identical reference character is used for identical member.
When three/Twoway valves 6 was in first switching state shown in Figure 3, the cooler for recycled exhaust gas 9 of freezing mixture operation was arranged in the discharge pipe 3 in downstream of oil cooler 1.
When three/two-way valve 6 is in first switching position, use coolant cools oil, guarantee setting by the selection of cooler for recycled exhaust gas, in the downstream of oil cooler 1, the thermal exhaust heating that freezing mixture was not refluxed be used in the oil cooler 1 with cooled engine oil at described freezing mixture before.
The heater 7 and oil cooler 1 in parallel providing of freezing mixture operation, the heater 7 of this freezing mixture operation is from freezing mixture absorption heat and be arranged on the supply tube 8, and supply tube 8 is from discharge pipe 3 branches and be communicated to the supply tube 4 of the upstream of pump 2.The heater 7 that is provided for the passenger cabin is available always, and the closing element of the heater 7 of stopping using is not provided in coolant circuit 17 for this reason.
Radiator 14 as heat exchanger 13 is set, so that absorb heat from the freezing mixture reflow pipe 12, when three/Twoway valves 6 was in first switching position, reflow pipe 12 was from discharge pipe 3 branches in the downstream of oil cooler 1 and lead to thermostat 11.
The embodiment of the schematically illustrated explosive motor 16 as shown in Figure 3 of Fig. 4, wherein three/Twoway valves 6 is in second switching state.
For the physical Design of the illustrated embodiment of explosive motor 16, with reference to figure 3.Identical reference character is used for identical member.
For the three/Twoway valves 6 in second switching state, with reference to figure 2.
Claims (10)
1. fluid-cooled internal combustion engine (16) with coolant circuit (17), described coolant circuit (17) comprises the coolant jackets that is integrated in the cylinder head, to the supply tube (4) of coolant jackets supply coolant, and the discharge pipe (3) of discharging freezing mixture, wherein
The upstream that discharge pipe (3) passes the oil cooler (1) of freezing mixture operation and be used for the pump (2) of supply coolant from be arranged on supply tube (4) is communicated to supply tube (4) so that form the loop,
Bypass tube (5) is from supply tube (4) branch in pump (2) downstream and be communicated to discharge pipe (3) between oil cooler (1) and pump (2), and
Three/Twoway valves (6) are provided between bypass tube (5) and the discharge pipe (3), described three/Twoway valves (6) is connected pump (2) to oil cooler (1) by bypass tube (5) with discharge pipe (3) in first switching state, and separate discharge pipe (3) and supply tube (4), and in second switching state, separate discharge pipe (3) and bypass tube (5), thus oil cooler (1) connected to supply tube (4) by discharge pipe (3) in the upstream of pump (2).
2. fluid-cooled internal combustion engine as claimed in claim 1 (16) is characterized in that, the heater (7) and in parallel the providing of oil cooler (1) of freezing mixture operation.
3. fluid-cooled internal combustion engine as claimed in claim 2 (16), it is characterized in that, the heater (7) of freezing mixture operation is arranged in the supply tube (8), when three/Twoway valves (6) is in first switching state, supply tube (8) in the downstream of oil cooler (1) from discharge pipe (3) branch.
4. as the described fluid-cooled internal combustion engine (16) in the above-mentioned claim, it is characterized in that, the cooler for recycled exhaust gas (9) of freezing mixture operation is provided, when three/Twoway valves (6) was in second switching state, the cooler for recycled exhaust gas (9) of described freezing mixture operation was arranged in the discharge pipe (3) of upstream of oil cooler (1).
5. as the described fluid-cooled internal combustion engine (16) in the above-mentioned claim, it is characterized in that short circuit pipe (10) is provided, and described short circuit pipe (10) is from discharge pipe (3) branch and lead to thermostat (11).
6. as the described fluid-cooled internal combustion engine (16) in the above-mentioned claim, it is characterized in that, provide heat exchanger (13) so that absorb heat from freezing mixture.
7. fluid-cooled internal combustion engine as claimed in claim 6 (16) is characterized in that, heat exchanger (13) is radiator (14).
8. as claim 6 or 7 described fluid-cooled internal combustion engines (16), it is characterized in that, heat exchanger (13) is arranged in the reflow pipe (12), when three/Twoway valves (6) was in second switching state, described reflow pipe (12) was from discharge pipe (3) branch of the upstream of oil cooler (1) and lead to thermostat (11).
9. the method for the described fluid-cooled internal combustion engine (16) in an operation such as the above-mentioned claim, wherein, the warm-up phase of explosive motor (16) after cold starting operated with the three/Twoway valves (6) in second switching state.
10. method as claimed in claim 9 is characterized in that, when explosive motor (16) when reaching predetermined minimum temperature, three/Twoway valves (6) switch to first switching state from second switching state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810042660 DE102008042660A1 (en) | 2008-10-08 | 2008-10-08 | Fluid-cooled internal combustion engine for motor vehicle, has three-two-way valve separating bypass line from discharge line in switching condition and connecting oil cooler with supply line upstream to pump via discharge line |
| DE102008042660.1 | 2008-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101718217A true CN101718217A (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910179724A Pending CN101718217A (en) | 2008-10-08 | 2009-09-30 | Fluid-cooled internal combustion engine with oil cooler and its operating method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101718217A (en) |
| DE (1) | DE102008042660A1 (en) |
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| CN103422967A (en) * | 2012-05-14 | 2013-12-04 | 福特环球技术公司 | Internal combustion engine with coolant circuit |
| CN103511051A (en) * | 2012-06-19 | 2014-01-15 | 福特环球技术公司 | Liquid-cooled internal combustion engine with afterrun cooling, and method for operating internal combustion engine of said type |
| CN105051333A (en) * | 2013-03-19 | 2015-11-11 | 洋马株式会社 | Internal combustion engine and cogeneration device |
| CN106481433A (en) * | 2015-08-25 | 2017-03-08 | 现代自动车株式会社 | There is the engine system of coolant control valve |
| CN110959067A (en) * | 2019-08-07 | 2020-04-03 | 株式会社小松制作所 | Engine cooling device and engine system |
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| DE102009036603B4 (en) * | 2009-07-30 | 2020-07-16 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling system for an internal combustion engine |
| CN102086803A (en) * | 2011-02-17 | 2011-06-08 | 潍柴动力股份有限公司 | Engine and engine oil cooling circulation system thereof |
| EP2557292A1 (en) * | 2011-08-10 | 2013-02-13 | Ford Global Technologies, LLC | Liquid cooled internal combustion engine equipped with an exhaust gas turbo charger |
| FR3002979B1 (en) * | 2013-03-06 | 2016-07-15 | Snecma | LUBRICATION SYSTEM FOR TURBOPROPULSEUR |
| US9068496B2 (en) | 2013-05-09 | 2015-06-30 | Ford Global Technologies, Llc | System for cooling an engine block cylinder bore bridge |
| KR20200040946A (en) * | 2018-10-10 | 2020-04-21 | 현대자동차주식회사 | Engine cooling system for a vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995001500A1 (en) * | 1993-07-01 | 1995-01-12 | Scania Cv Aktiebolag | Cooling system for a vehicle equipped with a retarder |
| DE10146313A1 (en) * | 2001-09-20 | 2003-04-17 | Daimler Chrysler Ag | Coolant circulation system has flow direction in branch circuit reversible by means of pump or valve |
| US20080017353A1 (en) * | 2006-07-17 | 2008-01-24 | Behr Gmbh & Co. Kg | Valve for controlling a coolant flow for a heating element of a motor vehicle and system with at least one valve |
| CN101184910A (en) * | 2005-07-28 | 2008-05-21 | 奥迪股份公司 | Cooling system for a vehicle, and method for the operation of a cooling system |
-
2008
- 2008-10-08 DE DE200810042660 patent/DE102008042660A1/en not_active Withdrawn
-
2009
- 2009-09-30 CN CN200910179724A patent/CN101718217A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995001500A1 (en) * | 1993-07-01 | 1995-01-12 | Scania Cv Aktiebolag | Cooling system for a vehicle equipped with a retarder |
| DE10146313A1 (en) * | 2001-09-20 | 2003-04-17 | Daimler Chrysler Ag | Coolant circulation system has flow direction in branch circuit reversible by means of pump or valve |
| CN101184910A (en) * | 2005-07-28 | 2008-05-21 | 奥迪股份公司 | Cooling system for a vehicle, and method for the operation of a cooling system |
| US20080017353A1 (en) * | 2006-07-17 | 2008-01-24 | Behr Gmbh & Co. Kg | Valve for controlling a coolant flow for a heating element of a motor vehicle and system with at least one valve |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422967A (en) * | 2012-05-14 | 2013-12-04 | 福特环球技术公司 | Internal combustion engine with coolant circuit |
| CN103422967B (en) * | 2012-05-14 | 2017-10-03 | 福特环球技术公司 | Internal combustion engine with coolant circuit |
| CN103511051A (en) * | 2012-06-19 | 2014-01-15 | 福特环球技术公司 | Liquid-cooled internal combustion engine with afterrun cooling, and method for operating internal combustion engine of said type |
| CN103511051B (en) * | 2012-06-19 | 2017-11-03 | 福特环球技术公司 | With the liquid-cooled explosive motor cooled down after operating and the method for running the type explosive motor |
| CN105051333A (en) * | 2013-03-19 | 2015-11-11 | 洋马株式会社 | Internal combustion engine and cogeneration device |
| CN105051333B (en) * | 2013-03-19 | 2017-07-11 | 洋马株式会社 | Internal combustion engine and cogeneration system |
| CN106481433A (en) * | 2015-08-25 | 2017-03-08 | 现代自动车株式会社 | There is the engine system of coolant control valve |
| CN106481433B (en) * | 2015-08-25 | 2020-08-11 | 现代自动车株式会社 | Engine system with coolant control valve |
| CN110959067A (en) * | 2019-08-07 | 2020-04-03 | 株式会社小松制作所 | Engine cooling device and engine system |
| US11047291B2 (en) | 2019-08-07 | 2021-06-29 | Komatsu Ltd. | Engine cooling device and engine system |
| CN110959067B (en) * | 2019-08-07 | 2021-10-15 | 株式会社小松制作所 | Engine cooling device and engine system |
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| Publication number | Publication date |
|---|---|
| DE102008042660A1 (en) | 2010-04-15 |
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