CN107100713B - Vehicle and its engine - Google Patents
Vehicle and its engine Download PDFInfo
- Publication number
- CN107100713B CN107100713B CN201610099245.3A CN201610099245A CN107100713B CN 107100713 B CN107100713 B CN 107100713B CN 201610099245 A CN201610099245 A CN 201610099245A CN 107100713 B CN107100713 B CN 107100713B
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- Prior art keywords
- water jacket
- coolant liquid
- water
- control valve
- outlet
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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
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
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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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
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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
- F01P2050/00—Applications
- F01P2050/22—Motor-cars
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of vehicle and its engines, engine includes cooling system, comprising: the first water pump, the first control valve, body water jacket, cooler for engine oil, the second control valve, piping connection is passed sequentially through on the flow direction of coolant liquid into closed loop, second control valve includes the first, second and third entrance, first entrance is connect by pipeline with cooler for engine oil, and second entrance is connect by pipeline with the water outlet of body water jacket；Radiator is connect with the water outlet of body water jacket, third entrance respectively by two pipelines.The engine of technical solution of the present invention shortens warm-up period.
Description
Technical field
The present invention relates to automobile technical fields, more particularly to a kind of vehicle and its engine.
Background technique
The function of engine-cooling system is to be held at engine under all operating conditions within the scope of appropriate temperature,
Engine overheat should be prevented, also to avoid engine from being subcooled.After engine cold starting, cooling system will also guarantee, hair
Motivation is brought rapidly up, and reaches normal operating temperature as early as possible, and engine is claimed from cold start to the process for being increased to normal temperature
For engine warm-up process.
During engine warm-up, parts wear aggravation within the engine, deterioration of emission, rough running, hair are deposited
The problems such as decline of motivation power, fuel consumption rate increase.Therefore, engine warm-up time is shorter better.But available engine
Often it is unable to satisfy the requirement.
Summary of the invention
The problem to be solved in the present invention is: available engine warm-up period is longer.
To solve the above problems, the present invention provides a kind of engine, including cooling system, the cooling system include:
First water pump, the first control valve, body water jacket, cooler for engine oil, the second control valve, in the stream of coolant liquid
Pass sequentially through piping connection into closed loop on dynamic direction, wherein first control valve by pipeline and the first water pump out
Mouth connection, second control valve include the first, second and third entrance, and the first entrance passes through pipeline and engine motor oil cooling
Device connection, the second entrance are connect by pipeline with the water outlet of body water jacket；
Radiator is connect with the water outlet of the body water jacket, the third entrance respectively by two pipelines；
When the coolant liquid of the water outlet of the body water jacket is the first temperature range, first control valve is for being in
Under closed state, so that completely cutting off between first water pump and body water jacket；
When the coolant liquid of the water outlet of the body water jacket is second temperature range, first control valve is for being in
Opening state, second control valve are used to be in the first opening state, so that coolant liquid is followed by first water pump, the
It is divided into two parts after one control valve, body water jacket, a part of coolant liquid is successively via the cooler for engine oil, the second control
Valve processed flows back to the first water pump, and another part coolant liquid directly flows back to the first water pump via second control valve；
When the coolant liquid of the water outlet of the body water jacket is third temperature range, first control valve is for being in
Opening state, second control valve are used to be in the second opening state, so that coolant liquid is followed by first water pump, the
It is divided into two parts after one control valve, body water jacket, a part of coolant liquid is successively via the cooler for engine oil, the second control
Valve processed flows back to the first water pump, and another part coolant liquid successively flows back to the first water pump via the radiator, the second control valve；
In first, second and third temperature range, first temperature range is minimum, and the third temperature range is maximum.
Optionally, the cooling system further include: warm-air drier passes through the water outlet with the body water jacket respectively of two pipelines
The entrance connection of mouth, first water pump；
The warm-air drier is equipped with first switch valve, and the first switch valve is used for when user has heating demand in opening
State, so that coolant liquid is from after body water jacket outflow through flowing back to the first water pump by warm-air drier；The first switch valve is used for
Be in close state when user does not warm oneself demand so that between the warm-air drier and the water outlet of body water jacket, it is described warm
Completely cut off between blower and the entrance of the first water pump.
Optionally, the body water jacket includes the cylinder body water jacket and cylinder cover water jacket of connection；
There is the cylinder body water jacket the first water jacket entrance, the first water jacket to export, water inlet, the machine of the body water jacket
The water outlet of body water jacket is arranged on cylinder body water jacket；
There is the cylinder cover water jacket the second water jacket entrance, the second water jacket to export；
The coolant liquid of the first water pump outflow successively flows to the water inlet of the body water jacket, first water jacket goes out
Mouth, the outlet of the second water jacket entrance, the second water jacket, the first water jacket entrance, the body water jacket water outlet；
The cooling system further include: the second water pump and the first check valve, second water pump are located at warm-air drier and body
On pipeline between the water outlet of water jacket, first check valve by two pipelines respectively with the outlet of warm-air drier, the first water
Set outlet is connected, and first check valve flows to the outlet of the first water jacket from warm-air drier for uni-directionally limiting coolant liquid.
Optionally, the cooling system further include: booster, outlet and the entrance of the first water pump positioned at the warm-air drier
Between pipeline on, from the warm-air drier flow out coolant liquid flow back to the first water pump via booster.
Optionally, the cooling system further include: second one-way valve is gone out with first water jacket respectively by two pipelines
Pipeline between mouth, warm-air drier and booster is connected, and the second one-way valve is for uni-directionally limiting coolant liquid from first
Water jacket outlet flows to booster.
Optionally, first water pump is mechanical pump, and by engine driving.
Optionally, second water pump is electronic pump.
Optionally, the cooling system further include: speed changer oil cooler, by two pipelines respectively with the body
The entrance connection of the water outlet of water jacket, first water pump；
The speed changer oil cooler is equipped with second switch valve, and the second switch valve is used in the third temperature model
It is in the open state under enclosing, so that coolant liquid is from after body water jacket outflow through flowing back to the first water by speed changer oil cooler
Pump；The second switch valve under first and second temperature range for being in close state, so that the speed changer machine oil is cold
But completely cut off between device and the water outlet of body water jacket, between the speed changer oil cooler and the entrance of the first water pump.
Optionally, further includes:
Detection unit, the coolant temperature of the water outlet for detecting the body water jacket；
Control unit, for controlling first and second control valve according to the testing result of the detection unit:
When the testing result is first temperature range, controls first control valve and be in close state；
When the testing result is the second temperature range, control that first control valve is in the open state, institute
It states the second control valve and is in first opening state；
When the testing result is the third temperature range, control that first control valve is in the open state, institute
It states the second control valve and is in second opening state.
In addition, the present invention also provides a kind of vehicles comprising any of the above-described engine.
Compared with prior art, technical solution of the present invention has the advantage that
The warming-up process of engine includes two stages, in the first stage, when the temperature of engine is lower so that body water
When the coolant liquid of set water outlet is in first temperature range, the first control valve is for being in close state, so that cooling system
Coolant liquid in system is remain stationary, and engine is rapidly heated in the case where itself is because of produced heat.In second stage, when engine liter
When the coolant liquid of temperature to body water jacket water outlet is in the second temperature range, the first control valve in the open state,
Second control valve is used to be in the first opening state, so that coolant liquid is followed by the first water pump, the first control valve, body water jacket
After be divided into two parts, a part of coolant liquid successively flows back to the first water pump via cooler for engine oil, the second control valve, another
Part coolant liquid directly flows back to the first water pump via the second control valve.When coolant liquid flows through body water jacket, coolant liquid can absorb
Heat caused by engine operation, so that the coolant liquid of body water jacket water outlet has relatively high temperature.So,
Coolant liquid with comparative high temperature can transfer heat to engine motor oil when flowing through cooler for engine oil cooling
Machine oil in device, makes machine oil quickly be increased to required temperature, shortens the warm-up period of engine, reduces engine friction pair
Frictional work and oil consumption.
Detailed description of the invention
Fig. 1 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
Operation principle schematic diagram under first temperature range；
Fig. 2 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
Operation principle schematic diagram under second temperature range；
Fig. 3 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
Operation principle schematic diagram under third temperature range；
Fig. 4 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
First temperature range and user have operation principle schematic diagram when heating demand；
For Fig. 2 into Fig. 4, solid line with the arrow indicates that the flow path of coolant liquid, dotted line indicate that coolant liquid is static and do not flow.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
As shown in Figure 1, the engine of the present embodiment is by taking four cylinder engine as an example, and including cooling system, the cooling system
System includes the first water pump 1, the first control valve 2, body water jacket 3, cooler for engine oil 9, the second control valve 10 and heat dissipation
Device 11.Wherein: the first water pump 1, the first control valve 2, body water jacket 3, cooler for engine oil 9, the second control valve 10 are cold
But pipeline (not identifying) is passed sequentially through on the flow direction of liquid and connects into closed loop, and the first control valve 2 passes through pipeline and first
The outlet of water pump 1 connects, and there are three entrance, respectively first entrance I1, second entrance I2, third entrances for the second control valve 10 tool
I3, first entrance I1 are connect by pipeline with cooler for engine oil 9, and second entrance I2 passes through pipeline and body water jacket 3
Water outlet K2 connection.Radiator 11 by two pipelines respectively with another water outlet K2 of body water jacket 3, the second control valve 10
The I3 connection of third entrance.In the present embodiment, there are two water outlet K2 for the tool of body water jacket 3, but it should be noted that, of the invention
In technical solution, this limitation should not be done to the water outlet K2 quantity of body water jacket 3, quantity can be set to any.
In the present embodiment, the first water pump 1 is mechanical pump, and by engine driving, so, once engine operation
The first water pump 1 can be driven to work, the first water pump 1 is driven to work without additional power source.It in other embodiments, is machine
First water pump 1 of tool pump can not also be by engine driving, alternatively, the first water pump 1 may be set to be electronic pump.
The coolant temperature of the water outlet K2 of body water jacket 3 can characterize temperature of the engine under current working.At this
In the technical solution of invention, the coolant temperature range by engine in all 3 water outlet K2 of operating condition lower body water jacket is divided into
First, second and third temperature range, first temperature range is minimum, and second range is placed in the middle, and the third temperature range is most
Greatly, engine operating condition corresponding to first temperature range is running on the lower load (including state of starting operating), the second temperature
Engine operating condition corresponding to range is middle load condition, and engine operating condition corresponding to the third temperature range is high load capacity
Operating condition.
In the present embodiment, first temperature range be less than 75 degrees Celsius, the second temperature range be greater than etc.
In 75 degrees Celsius, be less than or equal to 105 degrees Celsius, the third temperature range be greater than 105 degrees Celsius.But it should be noted that
In the solution of the present invention, the size of first, second and third temperature should not be limited only to the present embodiment, can be according to specific feelings
Condition makes adaptable adjusting.
In the inventive solutions, when the coolant liquid of the water outlet K2 of body water jacket 3 is in different temperatures, the first control
Valve 2 processed, the second control valve 10 configure as follows:
When the coolant liquid of the water outlet K2 of body water jacket 3 is in first temperature range, the first control valve 2 is for being in
Closed state, so that the coolant liquid in cooling system is remain stationary (as shown in phantom in Figure 1), engine is at itself because produced by
It heats up under heat.Since the coolant liquid in cooling system is static, therefore coolant liquid will not take away heat produced by engine, thus make
Obtaining engine can be rapidly heated, and then realize the warm-up period for shortening engine.When the coolant liquid of 3 water outlet K2 of body water jacket
When in first temperature range, even if engine has work and drives the operating of the first water pump 1, since the first control valve 2 is
It closes, therefore coolant liquid can not be delivered to body water jacket 3 by the first water pump 1, so that the coolant liquid in cooling system is static.
Fig. 2 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
Operation principle schematic diagram under second temperature range, in Fig. 2, solid line with the arrow indicates the flow path of coolant liquid, dotted line table
Show that coolant liquid is static not flow.As shown in Fig. 2, when the coolant liquid of 3 water outlet K2 of body water jacket is in the second temperature range,
First control valve 2 is in the open state, and the second control valve 10 is used to be in the first opening state, i.e. the second control valve 10
Only have first entrance I1 and second entrance I2 in three entrances to be connected to the outlet of the second control valve 10, and third entrance I3
It is not connected to the outlet of the second control valve 10, so that coolant liquid is followed by the first water pump 1, the first control valve 2, body water
It is divided into two parts after set 3, a part of coolant liquid successively flows back to the first water via cooler for engine oil 9, the second control valve 10
Pump 1, another part coolant liquid directly flow back to the first water pump 1 via the second control valve 10, and the flow path of coolant liquid is band in figure
Arrow it is shown in solid.When coolant liquid flows through body water jacket 3, coolant liquid can absorb heat caused by engine operation, make
The coolant liquid for obtaining 3 water outlet K2 of body water jacket has relatively high temperature.So, with the cooling of comparative high temperature
Liquid stream keeps machine oil quick through that can transfer heat to the machine oil in cooler for engine oil 9 when cooler for engine oil 9
It is increased to required temperature, shortens the warm-up period of engine, reduces frictional work and the oil consumption of engine friction pair.It needs
Bright, in the present invention, coolant liquid flows through body water jacket 3 and refers to that coolant liquid flows to machine from the water inlet K1 of body water jacket 3
The water outlet K2 of body water jacket 3.
When the coolant liquid of 3 water outlet K2 of body water jacket is in the second temperature range, why make from body water jacket 3
A part of coolant liquid of water outlet K2 outflow successively flows back to the first water pump via cooler for engine oil 9, the second control valve 10
1, the reason of another part coolant liquid directly flows back to the first water pump 1 via the second entrance I2 of the second control valve 10, is:
On the one hand, the coolant liquid of cooler for engine oil 9 is flowed through there are the pressure loss, if coolant liquid is all via starting
Machine oil cooler 9, the second control valve 10 flow back to the first water pump 1, without flowing back to via the second entrance I2 of the second control valve 10
First water pump 1, then flowing back into the coolant liquid of the first water pump 1, there are the biggish pressure losses, so, in order to guarantee engine
It can work in the normal temperature range, the flow of the first water pump 1 need to be increased.And in the technical scheme of this embodiment, due to certainly
A part of coolant liquid of the water outlet K2 outflow of body water jacket 3 flows back to the first water pump via the second entrance I2 of the second control valve 10
1, and the pressure loss is not present in a part of coolant liquid for flowing through the second control valve 10, therefore can to flow back into the first water pump 1
The pressure loss of coolant liquid is smaller, also can guarantee in the case where not increasing the first 1 flow of water pump and starts function in normal temperature
Work in range.
On the other hand, coolant liquid can cause temperature because transferring heat to machine oil when flowing through cooler for engine oil 9
Decline, if coolant liquid all flows back to the first water pump 1 via cooler for engine oil 9, the second control valve 10, without via second
The second entrance I2 of control valve 10 flows back to the first water pump 1, then the temperature of coolant liquid can decline more, causes in cooling system
Coolant liquid can not be rapidly heated, and then cannot achieve rapid warming-up.And in the technical scheme of this embodiment, due to from body water
A part of coolant liquid of the water outlet K2 outflow of set 3 flows back to the first water pump 1 via the second entrance I2 of the second control valve 10, and flows
A part of coolant temperature through the second control valve 10 will not decline, thus the coolant liquid in cooling system can be made quickly to rise
Temperature, and then realize rapid warming-up.
Fig. 3 is that the cooling system of engine in one embodiment of the present of invention is in the coolant liquid of the water outlet of body water jacket
Operation principle schematic diagram under third temperature range, in Fig. 3, solid line with the arrow indicates the flow path of coolant liquid, dotted line table
Show that coolant liquid is static not flow.As shown in figure 3, when the coolant liquid of 3 water outlet K2 of body water jacket is in the third temperature range,
First control valve 2 is in the open state, and the second control valve 10 is used to be in the second opening state, i.e. the second control valve 10
Only have first entrance I1 and third entrance I3 in three entrances to be connected to the outlet of the second control valve 10, and second entrance I2
It is not connected to the outlet of the second control valve 10, so that coolant liquid is followed by the first water pump 1, the first control valve 2, body water
It is divided into two parts after set 3, a part of coolant liquid successively flows back to the first water via cooler for engine oil 9, the second control valve 10
Pump 1, another part coolant liquid successively flows back to the first water pump 1, the flow path of coolant liquid via radiator 11, the second control valve 10
It is with the arrow shown in solid in figure.The coolant liquid flowed out from the water outlet K2 of body water jacket 3 flows through after radiator 11 at temperature
Drop, the coolant liquid after temperature decline flows through body water jacket 3 via the first water pump 1, to take away heat produced by engine, so that hair
Motivation temperature is not too high.
It can be seen from the above, compared with prior art, technical solution of the present invention has the advantage that
The warming-up process of engine includes two stages, in the first stage, when the temperature of engine is lower so that body water
When covering the coolant liquid of 3 water outlet K2 and being in first temperature range, the first control valve 2 is for being in close state, so that cold
But the coolant liquid in system is remain stationary, and engine is rapidly heated in the case where itself is because of produced heat.In second stage, when starting
When the coolant liquid that machine is warming up to 3 water outlet K2 of body water jacket is in the second temperature range, the first control valve 2 is used to be in and beat
Open state, the second control valve 10 is used to be in the first opening state, so that coolant liquid controls followed by the first water pump 1, first
It is divided into two parts after valve 2, body water jacket 3, a part of coolant liquid is successively via cooler for engine oil 9, the second control valve 10
The first water pump 1 is flowed back to, another part coolant liquid directly flows back to the first water pump 1 via the second control valve 10.Machine is flowed through in coolant liquid
When body water jacket 3, coolant liquid can absorb heat caused by engine operation, so that the coolant liquid of 3 water outlet K2 of body water jacket has
There is relatively high temperature.It so, can be with when the coolant liquid with comparative high temperature flows through cooler for engine oil 9
The machine oil in cooler for engine oil 9 is transferred heat to, machine oil is made quickly to be increased to required temperature, shortens engine
Warm-up period reduces frictional work and the oil consumption of engine friction pair.
Certainly, also can be by engine warms to suitable temperature only with the warming-up process of above-mentioned first stage, but compare
In the program, the present invention has an advantage that the warming-up mistake in the first stage using the warming-up process in above-mentioned two stage
Cheng Zhong, with the raising of engine temperature, the coolant temperature in cooling system is also and then increased.Coolant liquid is increased to certain temperature
Gas, bubble can be generated after degree, wherein generated gas can be trapped in the local position of engine because coolant liquid is stationary
It sets.With the extension of warm-up period, the local temperature that generated gas easilys lead to engine is excessively high so that engine office
Portion is easy to burst, and generated bubble is easy to explosion so that causing to damage to the partial structurtes of engine.In the present invention,
By first carrying out the warming-up process of first stage, then the warming-up process of second stage is carried out, the warming-up of first stage can be shortened
Time, thus avoid the problem of engine local temperature is excessively high, partial structurtes of engine are damaged.In addition,
In the warming-up process of two-stage, since the coolant liquid in cooling system is described in the coolant liquid for flowing, therefore flowing can be taken away
Gas avoids the gas from being always trapped in the local location of engine, thus further avoids engine local temperature mistake
High problem occurs.
Certainly, also can be by engine warms to suitable temperature only with the warming-up process of above-mentioned second stage, but compare
In the program, the present invention is had an advantage that in warming-up process in the first stage using the warming-up process in above-mentioned two stage,
Coolant liquid in cooling system be it is stationary, heat produced by engine, thus the heating rate of engine will not be taken away
It is faster than the heating rate of engine in second stage.Therefore, the present invention uses the warming-up process spent time in above-mentioned two stage
Less than the warming-up process spent time only with above-mentioned second stage, warming-up speed is improved.
In the present embodiment, body water jacket 3 includes the cylinder body water jacket 32 and cylinder cover water jacket 31 of connection, and cylinder body water jacket 32 is arranged
In cylinder block, cylinder cover water jacket 31 is arranged in cylinder cover, and the cylinder block and cylinder cover constitute cylinder body.Wherein；Cylinder body water jacket
32 there is the first water jacket entrance K4, the first water jacket to export K3, and water inlet K1, the water outlet K2 of body water jacket 3 of body water jacket 3 are equal
It is arranged on cylinder body water jacket 32；There is cylinder cover water jacket 31 second water jacket entrance K5, the second water jacket to export K6.The outflow of first water pump 1
Coolant liquid successively flow to the water inlet K1 of body water jacket 3, the first water jacket outlet K3, the second water jacket entrance K5, the second water jacket go out
Mouthful K6, the first water jacket entrance K4, body water jacket 3 water outlet K2, that is, the coolant liquid flowed out from the first water pump 1 first flows to cylinder body
Water jacket 32, then cylinder cover water jacket 31 is flowed to, cylinder body water jacket 32 is then flowed back to by cylinder cover water jacket 31, and flow out from cylinder body water jacket 32.?
In other embodiments, the coolant liquid flowed out from the first water pump 1 can also first flow to cylinder body water jacket 32, then flow to cylinder cover water jacket 31,
And it is directly flowed out from cylinder cover water jacket 31.
In the present embodiment, the coolant temperature of 3 water outlet K2 of body water jacket can be by the electronic control unit of automobile
(ECU) ring according to locating for the load of sensor engine obtained each on automobile, the revolving speed of engine, speed, automobile
Border temperature, the temperature of motor body, six parameters such as oil temperature of engine are calculated and are obtained.Alternatively, body water jacket 3 is discharged
The coolant temperature of mouth K2 can also be measured by temperature sensor.
In the present embodiment, engine further include: detection unit, for detecting the coolant liquid of 3 water outlet K2 of body water jacket
Temperature；Control unit, for controlling the first control valve 2, the second control valve 10 according to the testing result of the detection unit.Institute
State testing result be first temperature range when, described control unit control the first control valve 2 be in close state.Described
When testing result is the second temperature range, the first control valve of described control unit control 2 is in the open state, second controls
Valve 10 is in first opening state；When the testing result is the third temperature range, described control unit control
First control valve is 2 in the open state, the second control valve 10 is in second opening state.
In the present embodiment, the first control valve 2, the second control valve 10 are ball valve.Wherein, the second control valve 10 has shell
Body and it is located at the intracorporal spool of shell, the first entrance I1 of the second control valve 10, second entrance I2, third entrance I3 and outlet are equal
Setting on the housing, by the rotation of control valve core, can control connection between first entrance I1 and the outlet or
The connection between connection or isolation, and/or third entrance I3 and the outlet between isolation, second entrance I2 and the outlet
Or isolation.In other embodiments, the first control valve 2, the second control valve 10 can also use other kinds of valve.
As shown in figure 4, in the present embodiment, the cooling system further includes that warm-air drier 6, the second water pump 13 and first are unidirectional
Valve 4.Warm-air drier 6 by two pipelines respectively with the water outlet K2 of body water jacket 3,
The entrance of first water pump 1 connects.Second water pump 13 is located between warm-air drier 6 and the water outlet K2 of body water jacket 3
On pipeline, the first check valve 4 exports K3 with the outlet of warm-air drier 6, the first water jacket respectively by two pipelines and is connected, and first is single
It is flowed to valve 4 for uni-directionally limiting coolant liquid from warm-air drier 6
First water jacket exports K3.
Warm-air drier 6 can use heat produced by engine and heat to the passenger compartment of vehicle.Warm-air drier 6 is equipped with first switch
Valve 60, first switch valve 60 in the open state to heat into passenger compartment when user has heating demand, for
Family do not warm oneself demand when be in close state with stop heat into passenger compartment.It is in the open state in first switch valve 60
Under, coolant liquid flows to warm-air drier 6 from the water outlet K2 of body water jacket 3.In the case where first switch valve 60 is in close state, warm up
Completely cut off between blower 6 and the water outlet K2 of body water jacket 3, between warm-air drier 6 and the entrance of the first water pump 1, so that coolant liquid
Warm-air drier 6 can not be flowed to from the water outlet K2 of body water jacket 3.
Vapour in the case where the coolant liquid of 3 water outlet K2 of body water jacket is in first temperature range, where cylinder cover water jacket 31
Cylinder cap temperature is generally greater than the cylinder temperature where cylinder body water jacket 32, at this time by starting the second water pump 13, and makes warm-air drier 6
First switch valve 60 it is in the open state, can use heat produced by cylinder cover to meet the heating demand of user.Specifically
Implementation is as follows: under the action of the second water pump 13, the coolant liquid flowed out from warm-air drier 6 flows to cylinder via the first check valve 4
First water jacket of body water jacket 32 exports K3, then exports the second water jacket entrance K5 that K3 flows to cylinder cover water jacket 31 from the first water jacket,
Coolant liquid flows out after flowing through cylinder cover water jacket 31 from the second water jacket outlet K6, and when flowing through cylinder cover water jacket 31, vapour is can be absorbed in coolant liquid
Heat produced by cylinder body and temperature increase.The first water jacket of cylinder body water jacket 32 is flowed to from the coolant liquid of the second water jacket outlet K6 outflow
Entrance K4, and flowed out from the water outlet K2 of body water jacket 3.The coolant liquid of outflow flows to warm-air drier 6 via the second water pump 13, due to
Coolant liquid absorbs heat produced by cylinder block when flowing through cylinder cover water jacket 31 and temperature increases, therefore warm from the flow direction of body water jacket 3
The coolant liquid of blower 6 can transfer heat to warm-air drier 6, to form hot wind.In the process, due to coolant liquid do not flow through it is whole
A cylinder body water jacket 32, therefore coolant liquid will not take away the excessive heat of cylinder block, so that cylinder temperature will not be relatively low.
As shown in Fig. 2, being warmed up in the case where the coolant liquid of 3 water outlet K2 of body water jacket is in the second temperature range by making
The first switch valve 60 of blower 6 is in the open state, can use heat produced by engine also to meet the heating need of user
It asks.Specific implementation is as follows: under the action of the first water pump 1, the coolant liquid in cooling system is circulated, from body water jacket
The coolant temperature of 3 water outlet K2 outflow is higher, and therefore, the coolant liquid flowed out from the water outlet K2 of body water jacket 3 is flowing through
Can carry out heat exchange with warm-air drier 6 when warm-air drier 6, to form hot wind, coolant liquid from temperature decline after the outflow of warm-air drier 6 and according to
It is secondary to flow to the first water pump 1, body water jacket 3, to cool down engine.At this point, since coolant liquid can be under the action of the first water pump 1
It circulates, therefore the second water pump 13 is without starting.
Certainly, in the case where the coolant liquid of 3 water outlet K2 of body water jacket is in the third temperature range, by making warm-air drier 6
First switch valve 60 it is in the open state, can use heat produced by engine also to meet the heating demand of user,
Specific implementation refers to implementation shown in Fig. 2, and details are not described herein.
Second water pump 13 can be set to mechanical pump driven by the engine, may be set to be electronic pump, in this implementation
In example, using the technical solution of the latter, reason is: when the second water pump 13 is set as mechanical pump driven by the engine, needing to increase
Add transmission device that the power that engine exports is transferred to mechanical pump to provide power, in addition, the transmission device in order to prevent
Structure it is excessively complicated, it is more demanding to the installation site of the second water pump 13, it is desirable that power of second water pump 13 apart from engine
Output end is closer.And when setting electronic pump for the second water pump 13, it can directly be powered using vehicle power supply for it, without increasing
The transmission device, electronic pump can arbitrarily select installation site.
In the present embodiment, the cooling system further includes booster 7 and second one-way valve 5, and booster 7 is located at warm-air drier
On pipeline between 6 outlet and the entrance of the first water pump 1, the coolant liquid flowed out from warm-air drier 6 flows back to first via booster 7
Water pump 1.Booster 7 is used to increase the admission pressure of engine, to increase the air inflow of engine.Second one-way valve 5 passes through two
Pipeline is connected with the first water jacket of cylinder body water jacket 32 outlet K3, warm-air drier 6 with the pipeline between booster 7 respectively, and second
Check valve 5 flows to booster 7 from the first water jacket outlet K3 for uni-directionally limiting coolant liquid.
As shown in Figure 2 or Figure 3, from a part of coolant liquid of the first water jacket of cylinder body water jacket 32 outlet K3 outflow from cylinder head water
Second water jacket entrance K5 of set 31 flows through cylinder cover water jacket 31 to cool down to cylinder cover, and another part coolant liquid is unidirectional from second
Valve 5 flows to booster 7, and due to this part, coolant liquid flows only through cylinder body water jacket 32, and does not flow through cylinder cover water jacket 31, thus temperature is small
In the temperature of booster 7, the coolant liquid flowed out from second one-way valve 5 is cooled down to booster 7.
With continued reference to shown in Fig. 3, in the present embodiment, the cooling system further includes expansion tank 8, and expansion tank 8 has the
Four entrances (not identifying), the 5th entrance (not identifying) and outlet, the row that the 4th entrance passes through pipeline and the cylinder body of engine
Stomata connection, the 5th entrance are connected to by pipeline with radiator 11, and the outlet of expansion tank 8 by pipeline and is connected to heat dissipation
Pipeline connection between device 11 and the third entrance I3 of the second control valve 10.From what is be discharged in the gas vent, radiator 11 of cylinder body
Gas can flow to the inner cavity of expansion tank 8, to avoid the hypertonia of cooling system.When the chamber pressure of expansion tank 8 is more than pre-
If when value, the valve in expansion tank 8 can be opened, so that the coolant liquid in expansion tank 8 flows back to the first water via the second control valve 10
Pump 1.
In the present embodiment, the cooling system further includes speed changer oil cooler 12, by two pipelines respectively with
The entrance connection of the water outlet K2 of body water jacket 3, the first water pump 1.Speed changer oil cooler 12 is equipped with second switch valve 120,
Second switch valve 120 is in the open state under the third temperature range, so that water outlet of the coolant liquid from body water jacket 3
Through flowing back to the first water pump 1 by speed changer oil cooler 12 after mouth K2 outflow.According to noted earlier it is found that from coolant liquid from body
The coolant liquid of the water outlet K2 outflow of water jacket 3 has higher temperature, and therefore, the coolant liquid flowed out from water outlet K2 is flowing through speed change
The machine oil in speed changer oil cooler 12 can be transferred heat to when device oil cooler 12, and machine oil is made quickly to be increased to institute
Need temperature.Second switch valve 120 under first and second temperature range for being in close state, so that speed changer machine oil is cold
But between device 12 and the water outlet K2 of body water jacket 3, between speed changer oil cooler 12 and the entrance of the first water pump 1 every
Absolutely, so, can to avoid the heat produced by engine be used to heating transmission oil cooler 12 in machine oil due to prolong
Long warm-up period.
In addition, the present invention also provides a kind of vehicles comprising above-mentioned engine.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of engine, including cooling system, the cooling system includes body water jacket, cooler for engine oil；It is special
Sign is, the cooling system further include:
First water pump, the first control valve, the second control valve pass sequentially through piping connection into closed loop on the flow direction of coolant liquid
Circuit, wherein first control valve is connect by pipeline with the outlet of the first water pump, second control valve including first,
Two, three entrance, the first entrance are connect by pipeline with cooler for engine oil, and the second entrance passes through pipeline and machine
The water outlet of body water jacket connects；
Radiator is connect with the water outlet of the body water jacket, the third entrance respectively by two pipelines；
When the coolant liquid of the water outlet of the body water jacket is the first temperature range, first control valve is used in closing
Under state, so that completely cutting off between first water pump and body water jacket；
When the coolant liquid of the water outlet of the body water jacket is second temperature range, first control valve is used in opening
State, second control valve are used to be in the first opening state, so that coolant liquid is followed by first water pump, the first control
It is divided into two parts after valve processed, body water jacket, a part of coolant liquid is successively via the cooler for engine oil, the second control valve
The first water pump is flowed back to, another part coolant liquid directly flows back to the first water pump via second control valve；
When the coolant liquid of the water outlet of the body water jacket is third temperature range, first control valve is used in opening
State, second control valve are used to be in the second opening state, so that coolant liquid is followed by first water pump, the first control
It is divided into two parts after valve processed, body water jacket, a part of coolant liquid is successively via the cooler for engine oil, the second control valve
The first water pump is flowed back to, another part coolant liquid successively flows back to the first water pump via the radiator, the second control valve；
In first, second and third temperature range, first temperature range is minimum, and the third temperature range is maximum.
2. engine according to claim 1, which is characterized in that the cooling system further include: warm-air drier passes through two
Pipeline is connect with the entrance of the water outlet of the body water jacket, first water pump respectively；
The warm-air drier is equipped with first switch valve, and the first switch valve is used to be in open shape when user has heating demand
State, so that coolant liquid is from after body water jacket outflow through flowing back to the first water pump by warm-air drier；The first switch valve is used for
User do not warm oneself demand when be in close state so that between the warm-air drier and the water outlet of body water jacket, the warm wind
Completely cut off between machine and the entrance of the first water pump.
3. engine according to claim 2, which is characterized in that the body water jacket includes the cylinder body water jacket and cylinder of connection
Lid water jacket；
There is the cylinder body water jacket the first water jacket entrance, the first water jacket to export, the water inlet of the body water jacket, the body water
The water outlet of set is arranged on cylinder body water jacket；
There is the cylinder cover water jacket the second water jacket entrance, the second water jacket to export；
The coolant liquid of first water pump outflow successively flows to the water inlet of the body water jacket, first water jacket outlet, the
Two water jacket entrances, the outlet of the second water jacket, the first water jacket entrance, the body water jacket water outlet；
The cooling system further include: the second water pump and the first check valve, second water pump are located at warm-air drier and body water jacket
Water outlet between pipeline on, first check valve is gone out with the outlet of warm-air drier, the first water jacket respectively by two pipelines
Mouth is connected, and first check valve flows to the outlet of the first water jacket from warm-air drier for uni-directionally limiting coolant liquid.
4. engine according to claim 3, which is characterized in that the cooling system further include: booster is located at described
On pipeline between the outlet of warm-air drier and the entrance of the first water pump, the coolant liquid flowed out from the warm-air drier is via booster stream
Return the first water pump.
5. engine according to claim 4, which is characterized in that the cooling system further include: second one-way valve passes through
Pipeline of two pipelines respectively between first water jacket outlet, warm-air drier and booster is connected, and the second one-way valve
Booster is flowed to from the outlet of the first water jacket for uni-directionally limiting coolant liquid.
6. engine according to claim 3, which is characterized in that first water pump is mechanical pump, and is driven by engine
It is dynamic.
7. engine according to claim 6, which is characterized in that second water pump is electronic pump.
8. engine according to claim 1, which is characterized in that the cooling system further include: speed changer machine oil is cooling
Device is connect with the entrance of the water outlet of the body water jacket, first water pump respectively by two pipelines；
The speed changer oil cooler is equipped with second switch valve, and the second switch valve is used under the third temperature range
It is in the open state, so that coolant liquid is from after body water jacket outflow through flowing back to the first water pump by speed changer oil cooler；
The second switch valve under first and second temperature range for being in close state, so that the speed changer machine oil is cooling
Completely cut off between device and the water outlet of body water jacket, between the speed changer oil cooler and the entrance of the first water pump.
9. engine according to any one of claims 1 to 8, which is characterized in that further include:
Detection unit, the coolant temperature of the water outlet for detecting the body water jacket；
Control unit, for controlling first and second control valve according to the testing result of the detection unit:
When the testing result is first temperature range, controls first control valve and be in close state；
When the testing result is the second temperature range, control first control valve it is in the open state, described the
Two control valves are in first opening state；
When the testing result is the third temperature range, control first control valve it is in the open state, described the
Two control valves are in second opening state.
10. a kind of vehicle, which is characterized in that including the described in any item engines of claim 1 to 9.
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| CN201610099245.3A CN107100713B (en) | 2016-02-23 | 2016-02-23 | Vehicle and its engine |
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|---|---|---|---|
| CN201610099245.3A CN107100713B (en) | 2016-02-23 | 2016-02-23 | Vehicle and its engine |
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| CN107100713B true CN107100713B (en) | 2019-05-17 |
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| CN107905879A (en) * | 2017-10-30 | 2018-04-13 | 安徽江淮汽车集团股份有限公司 | A kind of engine-cooling system |
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| 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 |
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| CN103362631A (en) * | 2012-03-30 | 2013-10-23 | 福特环球技术公司 | Engine cooling system control |
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| CN105275538A (en) * | 2014-06-25 | 2016-01-27 | 上海汽车集团股份有限公司 | Engine |
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| 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 |
| CN102052137A (en) * | 2009-11-05 | 2011-05-11 | 福特环球技术公司 | Cooling systems |
| JP2013096301A (en) * | 2011-10-31 | 2013-05-20 | Toyota Motor Corp | Cooling controller for engine |
| CN103362631A (en) * | 2012-03-30 | 2013-10-23 | 福特环球技术公司 | Engine cooling system control |
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