CN107100713A - Vehicle and its engine - Google Patents
Vehicle and its engine Download PDFInfo
- Publication number
- CN107100713A CN107100713A CN201610099245.3A CN201610099245A CN107100713A CN 107100713 A CN107100713 A CN 107100713A CN 201610099245 A CN201610099245 A CN 201610099245A CN 107100713 A CN107100713 A CN 107100713A
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- China
- Prior art keywords
- water jacket
- control valve
- coolant
- engine
- body water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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 engine, engine includes cooling system, and it includes：First water pump, the first control valve, body water jacket, cooler for engine oil, the second control valve, pipeline, which is passed sequentially through, on the flow direction of coolant connects into closed loop, second control valve includes first, second and third entrance, first entrance is connected by pipeline with cooler for engine oil, and second entrance is connected by pipeline with the delivery port of body water jacket；Radiator, is connected by delivery port, the 3rd entrance of two articles of pipelines respectively with body water jacket.The engine of technical solution of the present invention shortens warm-up period.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of vehicle and its engine.
Background technology
The function of engine-cooling system is engine is held at appropriate temperature model under all operating modes
In enclosing, it should prevent engine overheat, also avoid engine from being subcooled.After engine cold starting,
Cooling system will also ensure that engine is brought rapidly up, and normal operating temperature is reached as early as possible, by engine
It is referred to as engine warm-up process from cold start to the process for being increased to normal temperature.
During engine warm-up, parts wear aggravation within the engine, deterioration of emission, work are deposited
Make the problems such as rough, engine power decline, fuel consumption increase.Therefore, engine warm-up time
It is shorter better.But, available engine can not often meet the requirement.
The content 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 invention provides a kind of engine, including cooling system, the cooling
System includes：
First water pump, the first control valve, body water jacket, cooler for engine oil, the second control valve,
Pipeline, which is passed sequentially through, on the flow direction of coolant connects into closed loop, wherein, first control
Valve is connected by pipeline with the outlet of the first water pump, and second control valve includes first, second and third entrance,
The first entrance is connected by pipeline with cooler for engine oil, the second entrance by pipeline with
The delivery port connection of body water jacket；
Radiator, is connected by delivery port, the 3rd entrance of two articles of pipelines respectively with the body water jacket
Connect；
When the coolant of the delivery port of the body water jacket is the first temperature range, first control valve
For being closed down so that completely cut off between first water pump and body water jacket；
When the coolant of the delivery port of the body water jacket is second temperature scope, first control valve
For in open mode, second control valve be used for be in the first open mode so that coolant according to
Secondary flow through is divided into two parts, a part of coolant after first water pump, the first control valve, body water jacket
Successively the first water pump, another part cooling are flowed back to via the cooler for engine oil, the second control valve
Liquid directly flows back to the first water pump via second control valve；
When the coolant of the delivery port of the body water jacket is three temperature range, first control valve
For in open mode, second control valve be used for be in the second open mode so that coolant according to
Secondary flow through is divided into two parts, a part of coolant after first water pump, the first control valve, body water jacket
Successively the first water pump, another part cooling are flowed back to via the cooler for engine oil, the second control valve
Liquid flows back to the first water pump via the radiator, the second control valve successively；
In first, second and third temperature range, first temperature range is minimum, the 3rd temperature
Scope is maximum.
Alternatively, the cooling system also includes：Warm-air drier, by two pipelines respectively with the body
The entrance connection of the delivery port of water jacket, first water pump；
The warm-air drier is provided with first switch valve, and the first switch valve is used for when user has heating demand
In open mode so that coolant passes through from after body water jacket outflow and flows back to the first water pump by warm-air drier；
The first switch valve is used to be closed when user does not warm oneself demand so that the warm-air drier
Completely cut off between the delivery port of body water jacket, between the entrance of the warm-air drier and the first water pump.
Alternatively, 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, and the body water jacket enters water
Mouth, the delivery port of the body water jacket are 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 of the first water pump outflow flows to the water inlet of the body water jacket, described first successively
Water jacket outlet, the second water jacket entrance, the second water jacket outlet, the first water jacket entrance, the body water jacket
Delivery port；
The cooling system also includes：Second water pump and the first check valve, second water pump are located at warm wind
On pipeline between the delivery port of machine and body water jacket, first check valve by two pipelines respectively with
The outlet of warm-air drier, the outlet of the first water jacket are connected, and first check valve is cold for uni-directionally limiting
But liquid flows to the outlet of the first water jacket from warm-air drier.
Alternatively, the cooling system also includes：Booster, positioned at the outlet of the warm-air drier and first
On pipeline between the entrance of water pump, the coolant flowed out from the warm-air drier via booster flows back to first
Water pump.
Alternatively, the cooling system also includes：Second check valve, by two pipelines respectively with it is described
Pipeline between the outlet of first water jacket, warm-air drier and booster is connected, and second check valve is used for list
Limit to direction coolant and flow to booster from the outlet of the first water jacket.
Alternatively, first water pump is mechanical pump, and by engine driving.
Alternatively, second water pump is electronic pump.
Alternatively, the cooling system also includes：Speed changer oil cooler, is distinguished by two pipelines
Delivery port, the entrance of first water pump with the body water jacket are connected；
The speed changer oil cooler is provided with second switch valve, and the second switch valve is used for described the
Open mode is under three temperature ranges so that coolant is passed through by speed changer from after body water jacket outflow
Oil cooler flows back to the first water pump；The second switch valve is used under first and second temperature range
It is closed so that between the delivery port of radiator and the body water jacket, the radiator and
Completely cut off between the entrance of one water pump.
Alternatively, in addition to：
Detection unit, the coolant temperature of the delivery port 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 to be in and close
State；
When the testing result is the second temperature scope, controls first control valve to be in and open
State, second control valve are in first open mode；
When the testing result is three temperature range, controls first control valve to be in and open
State, second control valve are in second open mode.
In addition, present invention also offers a kind of vehicle, it includes any of the above-described described engine.
Compared with prior art, technical scheme has advantages below：
The warming-up process of engine includes two stages, in the first stage, makes when the temperature of engine is relatively low
When the coolant for obtaining body water jacket delivery port is in first temperature range, the first control valve is used to be in
Closed mode so that the coolant remains stationary in cooling system, engine heat because produced by itself
Under be rapidly heated.In second stage, when the coolant of engine warms to body water jacket delivery port is in institute
When stating second temperature scope, the first control valve is used to be in open mode, and the second control valve is used in the
One open mode so that coolant is divided into after flowing through the first water pump, the first control valve, body water jacket successively
Two parts, a part of coolant flows back to the first water via cooler for engine oil, the second control valve successively
Pump, another part coolant directly flows back to the first water pump via the second control valve.Body is flowed through in coolant
During water jacket, coolant can absorb engine work produced by heat so that body water jacket delivery port it is cold
But liquid has of a relatively high temperature.So, the coolant with comparative high temperature, which is flowed through, starts
The machine oil that can be transferred heat in cooler for engine oil during machine oil cooler, makes machine oil quick
Required temperature is increased to, the warm-up period of engine is shortened, the secondary frictional work of engine friction is reduced
And oil consumption.
Brief description of the drawings
Fig. 1 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is the operation principle schematic diagram under the first temperature range；
Fig. 2 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is the operation principle schematic diagram under second temperature scope；
Fig. 3 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is the operation principle schematic diagram under the 3rd temperature range；
Fig. 4 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is operation principle schematic diagram when the first temperature range and user have heating demand；
Fig. 2 is into Fig. 4, and the solid line with arrow represents the flow path of coolant, and dotted line represents coolant
It is static not flow.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is 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 includes the first water pump 1, the first control valve 2, body water jacket 3, engine motor oil cooling
Device 9, the second control valve 10 and radiator 11.Wherein：First water pump 1, the first control valve 2, machine
Body water jacket 3, cooler for engine oil 9, the second control valve 10 on the flow direction of coolant successively
Closed loop is connected into by pipeline (not identifying), the first control valve 2 passes through pipeline and the first water pump 1
Outlet connection, the second control valve 10 has three entrances, respectively first entrance I1, second entrance I2,
3rd entrance I3, first entrance I1 is connected by pipeline with cooler for engine oil 9, second entrance I2
It is connected by pipeline with the delivery port K2 of body water jacket 3.Radiator 11 by two pipelines respectively with machine
Another delivery port K2 of body water jacket 3, the 3rd entrance I3 connections of the second control valve 10.In the present embodiment
In, body water jacket 3 has two delivery port K2, but it should be noted that, in the inventive solutions,
Delivery port K2 quantity to body water jacket 3 should not do this limitation, and its quantity could be arranged to any.
In the present embodiment, the first water pump 1 is mechanical pump, and by engine driving, so, one
The work of denier engine can drive the first water pump 1 to work, and the first water pump 1 is driven without extra power source
Work.In other embodiments, be mechanical pump the first water pump 1 can not also by engine driving, or
Person, the first water pump 1 is it can also be provided that electronic pump.
The delivery port K2 of body water jacket 3 coolant temperature can characterize temperature of the engine under current working
Degree.In the inventive solutions, by engine all delivery port K2's of operating mode lower body water jacket 3
Coolant temperature scope is divided into first, second and third temperature range, and first temperature range is minimum, institute
State the second scope placed in the middle, the 3rd temperature range is maximum, starting corresponding to first temperature range
Machine operating mode is running on the lower load (including state of starting operating), the engine work corresponding to the second temperature scope
Condition is middle load condition, and the engine operating condition corresponding to the 3rd temperature range is high load capacity operating mode.
In the present embodiment, first temperature range is the second temperature scope less than 75 degrees Celsius
For more than or equal to 75 degrees Celsius, less than or equal to 105 degrees Celsius, the 3rd temperature range is more than 105
Degree Celsius.But it should be noted that, in the solution of the present invention, the size of first, second and third temperature
The present embodiment should not be limited only to, adaptable regulation can be made as the case may be.
In the inventive solutions, the delivery port K2 of body water jacket 3 coolant is in different temperatures
When, the first control valve 2, the second control valve 10 configure as follows：
When the delivery port K2 of body water jacket 3 coolant is in first temperature range, the first control valve
2 are used to be closed so that the coolant remains stationary (as shown in phantom in Figure 1) in cooling system,
Engine heats up under itself heat because produced by.Because the coolant in cooling system is static, therefore cooling
Liquid will not take away heat produced by engine, so that engine can be rapidly heated, and then realize contracting
The warm-up period of short engine.When the delivery port K2 of body water jacket 3 coolant is in the first temperature model
When enclosing, even if engine has work and drives the first water pump 1 to operate, because the first control valve 2 is to close
, therefore coolant can not be delivered to body water jacket 3 by the first water pump 1 so that the coolant in cooling system
It is static.
Fig. 2 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is the operation principle schematic diagram under second temperature scope, in Fig. 2, and the solid line with arrow represents cold
But the flow path of liquid, dotted line represents that coolant is static and not flowed.As shown in Fig. 2 body water jacket 3 goes out
When mouth of a river K2 coolant is in the second temperature scope, the first control valve 2 is used to be in open mode,
Second control valve 10 is used in three entrances in the first open mode, i.e. the second control valve 10 only
First entrance I1 and second entrance I2 is connected with the outlet of the second control valve 10, and the 3rd entrance I3
Do not connected with the outlet of the second control valve 10 so that coolant flows through the first water pump 1, first successively
It is divided into two parts after control valve 2, body water jacket 3, a part of coolant is cooled down via engine motor oil successively
Device 9, the second control valve 10 flow back to the first water pump 1, and another part coolant is directly via the second control valve
10 flow back to the first water pump 1, and the flow path of coolant is with the shown in solid of arrow in figure.In coolant
When flowing through body water jacket 3, coolant can absorb the heat produced by engine work so that body water jacket 3
Delivery port K2 coolant has of a relatively high temperature.So, with the cold of comparative high temperature
But it can be transferred heat in cooler for engine oil 9 when liquid flows through cooler for engine oil 9
Machine oil, makes machine oil quickly be increased to required temperature, shortens the warm-up period of engine, reduces and start
The frictional work of machine friction pair and oil consumption.It should be noted that, in the present invention, coolant flows through body water
Set 3 refers to that coolant flows to the delivery port K2 of body water jacket 3 from the water inlet K1 of body water jacket 3.
When the delivery port K2 of body water jacket 3 coolant is in the second temperature scope, why make from machine
A part of coolant of the delivery port K2 outflows of body water jacket 3 is successively via cooler for engine oil 9, the
Two control valves 10 flow back to the first water pump 1, and another part coolant is directly via the second of the second control valve 10
The reason for entrance I2 flows back to the first water pump 1 is：
On the one hand, there is the pressure loss in the coolant for flowing through cooler for engine oil 9, if coolant is complete
The first water pump 1 is flowed back to via cooler for engine oil 9, the second control valve 10 in portion, and not via second
The second entrance I2 of control valve 10 flows back to the first water pump 1, then the coolant for flowing back into the first water pump 1 is present
The larger pressure loss, so, in order to ensure to start function to be worked in normal temperature range, is needed
Increase the flow of the first water pump 1.And in the technical scheme of the present embodiment, due to from body water jacket 3
A part of coolant of delivery port K2 outflows flows back to the first water via the second entrance I2 of the second control valve 10
Pump 1, and flow through the second control valve 10 a part of coolant be not present the pressure loss, therefore can cause stream
The pressure loss for being back to the coolant of the first water pump 1 is smaller, and the situation of the flow of the first water pump 1 is not being increased
Under also can guarantee that and start function to be worked in normal temperature range.
On the other hand, coolant can be because transferring heat to machine oil when flowing through cooler for engine oil 9
And temperature drop is caused, if coolant is all flowed back to via cooler for engine oil 9, the second control valve 10
First water pump 1, and flow back to the first water pump 1 not via the second entrance I2 of the second control valve 10, then cool down
The temperature of liquid can decline more, cause the coolant in cooling system not to be rapidly heated, and then can not
Realize rapid warming-up.And in the technical scheme of the present embodiment, due to the delivery port K2 from body water jacket 3
A part of coolant of outflow flows back to the first water pump 1, and stream via the second entrance I2 of the second control valve 10
A part of coolant temperature through the second control valve 10 will not decline, thus can cause in cooling system
Coolant is rapidly heated, and then realizes rapid warming-up.
Fig. 3 is delivery port of the cooling system in body water jacket of engine in one embodiment of the present of invention
Coolant is the operation principle schematic diagram under the 3rd temperature range, in Fig. 3, and the solid line with arrow represents cold
But the flow path of liquid, dotted line represents that coolant is static and not flowed.As shown in figure 3, body water jacket 3 goes out
When mouth of a river K2 coolant is in three temperature range, the first control valve 2 is used to be in open mode,
Second control valve 10 is used in three entrances in the second open mode, i.e. the second control valve 10 only
First entrance I1 and the 3rd entrance I3 are connected with the outlet of the second control valve 10, and second entrance I2
Do not connected with the outlet of the second control valve 10 so that coolant flows through the first water pump 1, first successively
It is divided into two parts after control valve 2, body water jacket 3, a part of coolant is cooled down via engine motor oil successively
Device 9, the second control valve 10 flow back to the first water pump 1, another part coolant successively via radiator 11,
Second control valve 10 flows back to the first water pump 1, and the flow path of coolant is with the shown in solid of arrow in figure.
Temperature drop after radiator 11 is flowed through from the delivery port K2 of body water jacket 3 coolants flowed out, at a temperature of
Coolant after drop flows through body water jacket 3 via the first water pump 1, with heat produced by taking away engine, makes
Obtaining engine temperature will not be too high.
From the foregoing, compared with prior art, technical scheme has advantages below：
The warming-up process of engine includes two stages, in the first stage, makes when the temperature of engine is relatively low
When the coolant for obtaining the delivery port K2 of body water jacket 3 is in first temperature range, the first control valve 2 is used
In being closed so that the coolant remains stationary in cooling system, engine is at itself because being produced
It is rapidly heated under heat amount.It is cold when engine warms to the delivery port K2 of body water jacket 3 in second stage
But when liquid is in the second temperature scope, the first control valve 2 is used to be in open mode, the second control
Valve 10 is used to be in the first open mode so that coolant flows through the first water pump 1, the first control valve successively
2nd, be divided into two parts after body water jacket 3, a part of coolant successively via cooler for engine oil 9,
Second control valve 10 flows back to the first water pump 1, and another part coolant is directly flowed back to via the second control valve 10
First water pump 1.When coolant flows through body water jacket 3, coolant can be absorbed produced by engine work
Heat so that the delivery port K2 of body water jacket 3 coolant has of a relatively high temperature.So,
Coolant with comparative high temperature can transfer heat to hair when flowing through cooler for engine oil 9
Machine oil in motivation oil cooler 9, makes machine oil quickly be increased to required temperature, shortens engine
Warm-up period, reduces the secondary frictional work of engine friction and oil consumption.
Certainly, only with the above-mentioned first stage warming-up process also can by engine warms to suitable temperature,
But compared to the program, the present invention is had the advantage that using the warming-up process tool in above-mentioned two stage：Institute
In the warming-up process for stating the first stage, with the rise of engine temperature, the cooling liquid temperature in cooling system
Degree is also and then raised.Coolant is increased to after certain temperature that gas, bubble can be produced, wherein, it is produced
Gas the local location of engine can be trapped in because of coolant transfixion.With prolonging for warm-up period
Long, the local temperature that produced gas easilys lead to engine is too high so that engine is locally easy to
Explosion, produced bubble is easy to explosion so that the partial structurtes to engine cause damage.In this hair
In bright, by first carrying out the warming-up process of first stage, then the warming-up process of second stage is carried out, can be with
Shorten the warm-up period of first stage, thus avoid that engine local temperature is too high, engine part
The problem of structure is damaged.In addition, in the warming-up process of second stage, due in cooling system
Coolant be flowing, therefore flowing coolant can take away the gas, it is to avoid the gas is always
The local location of engine is trapped in, thus further avoid the problem of engine local temperature is too high and is sent out
It is raw.
Certainly, only with above-mentioned second stage warming-up process also can by engine warms to suitable temperature,
But compared to the program, the present invention is had the advantage that using the warming-up process tool in above-mentioned two stage：
In the warming-up process in one stage, the coolant in cooling system is actionless, will not take away engine
Produced heat, thus the programming rate of engine is faster than the programming rate of engine in second stage.Cause
This, the present invention is less than only with above-mentioned second stage using the warming-up process spent time in above-mentioned two stage
Warming-up process spent time, improve warming-up speed.
In the present embodiment, body water jacket 3 includes the cylinder body water jacket 32 and cylinder cover water jacket 31 of connection, cylinder body
Water jacket 32 is arranged in cylinder block, and cylinder cover water jacket 31 is arranged in cylinder cover, the cylinder block and cylinder
Lid constitutes cylinder body.Wherein；Cylinder body water jacket 32 has the first water jacket entrance K4, the first water jacket outlet K3,
The water inlet K1 of body water jacket 3, the delivery port K2 of body water jacket 3 are arranged on cylinder body water jacket 32；
Cylinder cover water jacket 31 has the second water jacket entrance K5, the second water jacket outlet K6.It is cold that first water pump 1 flows out
But liquid flow to successively the water inlet K1 of body water jacket 3, the first water jacket outlet K3, the second water jacket entrance K5,
Second water jacket outlet K6, the first water jacket entrance K4, the delivery port K2 of body water jacket 3, i.e. from first
The coolant that water pump 1 flows out first flows to cylinder body water jacket 32, then flows to cylinder cover water jacket 31, then by cylinder head water
Set 31 flows back to cylinder body water jacket 32, and is flowed out from cylinder body water jacket 32.In other embodiments, from the first water
The coolant that pump 1 flows out can also first flow to cylinder body water jacket 32, then flow to cylinder cover water jacket 31, and directly from
Cylinder cover water jacket 31 flows out.
In the present embodiment, the delivery port K2 of body water jacket 3 coolant temperature can by automobile electronics control
Unit (ECU) processed turns according to the load for the engine that each sensor is obtained on automobile, engine
Speed, speed, environment temperature, the temperature of motor body, the oil temperature of engine residing for automobile etc.
Six parameters, which are calculated, to be obtained.Or, the delivery port K2 of body water jacket 3 coolant temperature can also be by temperature
Sensor is measured.
In the present embodiment, engine also includes：Detection unit, for detecting the delivery port of body water jacket 3
K2 coolant temperature；Control unit, for being controlled according to the testing result of detection unit control first
Valve 2 processed, the second control valve 10.When the testing result is first temperature range, the control
Unit controls the first control valve 2 to be closed.It is the second temperature scope in the testing result
When, described control unit controls the first control valve 2 to be in open mode, the second control valve 10 in described
First open mode；When the testing result is three temperature range, described control unit control
First control valve 2 is in open mode, the second control valve 10 and is in second open mode.
In the present embodiment, the first control valve 2, the second control valve 10 are ball valve.Wherein, the second control
Valve 10 processed has housing and the valve element in housing, the first entrance I1 of the second control valve 10, second
Entrance I2, the 3rd entrance I3 and outlet are respectively provided with the housing, by controlling the rotation of valve element,
Connection or isolation between first entrance I1 and the outlet, second entrance I2 and the outlet can be controlled
Between connection or isolation, and/or the 3rd entrance I3 and the outlet between connection or isolation.At other
In embodiment, 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 also includes warm-air drier 6, the second water pump
13 and first check valve 4.Warm-air drier 6 by two pipelines delivery port K2 respectively with body water jacket 3,
The entrance connection of first water pump 1.Second water pump 13 is located at the delivery port of warm-air drier 6 and body water jacket 3
On pipeline between K2, the first check valve 4 passes through the outlet respectively with warm-air drier 6 of two pipelines, first
Water jacket outlet K3 is connected, and the first check valve 4 is used for uni-directionally restriction coolant and flowed to from warm-air drier 6
First water jacket exports K3.
Warm-air drier 6 can be heated using heat produced by engine to the passenger compartment of vehicle.Warm-air drier 6 is set
Have a first switch valve 60, first switch valve 60 be used for when user has heating demand in open mode with to
Heated in passenger compartment, for being closed when user does not warm oneself demand to stop into passenger compartment
Heating.It is in first switch valve 60 under open mode, delivery port K2 of the coolant from body water jacket 3
Flow to warm-air drier 6.In the case where first switch valve 60 is closed, warm-air drier 6 and body water jacket
Completely cut off between 3 delivery port K2, between the entrance of the water pump 1 of warm-air drier 6 and first so that coolant
Warm-air drier 6 can not be flowed to from the delivery port K2 of body water jacket 3.
It is in the delivery port K2 of body water jacket 3 coolant under first temperature range, cylinder cover water jacket
Cylinder head temperature where 31 is generally greater than the cylinder temperature where cylinder body water jacket 32, now by starting
Second water pump 13, and the first switch valve 60 of warm-air drier 6 is in open mode, it is possible to use cylinder cover
Produced heat meets the heating demand of user.Specific implementation is as follows：In the work of the second water pump 13
Under, the coolant flowed out from warm-air drier 6 flows to the first water of cylinder body water jacket 32 via the first check valve 4
Set outlet K3, then exports the second water jacket entrance K5 that K3 flows to cylinder cover water jacket 31 from the first water jacket,
Coolant is flowed through from the second water jacket outlet K6 outflows after cylinder cover water jacket 31, cold when flowing through cylinder cover water jacket 31
But heat produced by liquid can absorb cylinder block and temperature are raised.The cooling of K6 outflows is exported from the second water jacket
Liquid flows to the first water jacket entrance K4 of cylinder body water jacket 32, and is flowed out from the delivery port K2 of body water jacket 3.
The coolant of outflow flows to warm-air drier 6 via the second water pump 13, because coolant is flowing through cylinder cover water jacket 31
When absorb cylinder block produced by heat and temperature raise, therefore flow to the cold of warm-air drier 6 from body water jacket 3
But liquid can transfer heat to warm-air drier 6, to form hot blast.In the process, because coolant does not flow
Through whole cylinder body water jacket 32, therefore coolant will not take away the excessive heat of cylinder block so that cylinder temperature
Will not be relatively low.
As shown in Fig. 2 the coolant in the delivery port K2 of body water jacket 3 is under the second temperature scope,
By making the first switch valve 60 of warm-air drier 6 be in open mode, heat produced by engine can also be utilized
Measure to meet the heating demand of user.Specific implementation is as follows：It is cold in the presence of the first water pump 1
But the coolant in system is circulated, the coolant temperature flowed out from the delivery port K2 of body water jacket 3 compared with
Height, therefore, the coolant flowed out from the delivery port K2 of body water jacket 3 can be with when flowing through warm-air drier 6
Warm-air drier 6 carries out heat exchange, to form hot blast, coolant from temperature drop 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.Now, because coolant is in the first water
It can be circulated in the presence of pump 1, therefore the second water pump 13 is without starting.
Certainly, it is under the 3rd temperature range, passes through in the delivery port K2 of body water jacket 3 coolant
Make warm-air drier 6 first switch valve 60 be in open mode, can also using heat produced by engine come
The heating demand of user is met, its specific implementation refers to the implementation shown in Fig. 2, herein no longer
Repeat.
Second water pump 13 could be arranged to mechanical pump driven by the engine, it can also be provided that electronic pump,
In the present embodiment, using the technical scheme of the latter, reason is：Second water pump 13 is set to by starting
Machine driving mechanical pump when, need to increase transmission device by the power that engine is exported be transferred to mechanical pump with
Power is provided, in addition, in order to prevent the structure of the transmission device excessively complicated, to the peace of the second water pump 13
Holding position requires higher, it is desirable to which the second water pump 13 is nearer apart from the clutch end of engine.And by second
When water pump 13 is set to electronic pump, directly it can be powered using vehicle power for it, without increasing the biography
Dynamic device, electronic pump can arbitrarily select installation site.
In the present embodiment, the cooling system also includes the check valve 5 of booster 7 and second, booster 7
On the pipeline between outlet and the entrance of the first water pump 1 positioned at warm-air drier 6, flowed out from warm-air drier 6
Coolant flows back to the first water pump 1 via booster 7.Booster 7 is used for the admission pressure for increasing engine,
To increase the air inflow of engine.Second check valve 5 by two articles of pipelines respectively with cylinder body water jacket 32
One water jacket outlet K3, warm-air drier 6 are connected with the pipeline between booster 7, and the second check valve 5 is used for
Uni-directionally limit coolant and flow to booster 7 from the first water jacket outlet K3.
As shown in Figure 2 or Figure 3, a part of cold of K3 outflows is exported from the first water jacket of cylinder body water jacket 32
But liquid flows through cylinder cover water jacket 31 with cold to cylinder cover progress from the second water jacket entrance K5 of cylinder cover water jacket 31
But, another part coolant flows to booster 7 from the second check valve 5, because this part coolant is flowed only through
Cylinder body water jacket 32, and cylinder cover water jacket 31 is not flowed through, thus temperature is less than the temperature of booster 7 so that from
The coolant of second check valve 5 outflow can be cooled down to booster 7.
With continued reference to shown in Fig. 3, in the present embodiment, the cooling system also includes expansion tank 8, expansion
Case 8 has the 4th entrance (not identifying), the 5th entrance (not identifying) and outlet, and the 4th entrance leads to
The steam vent that pipeline is crossed with the cylinder body of engine is connected, and the 5th entrance is connected by pipeline with radiator 11
Logical, the outlet of expansion tank 8 is entered by pipeline with being connected to radiator 11 with the 3rd of the second control valve 10
Pipeline connection between mouth I3.The gas discharged in steam vent, radiator 11 from cylinder body can flow to swollen
The inner chamber of swell 8, to avoid the hypertonia of cooling system.When the chamber pressure of expansion tank 8 exceedes in advance
If during value, the valve in expansion tank 8 can be opened so that the coolant in expansion tank 8 is via the second control
Valve 10 flows back to the first water pump 1.
In the present embodiment, the cooling system also includes speed changer oil cooler 12, passes through two pipes
Delivery port K2, the entrance of the first water pump 1 of road respectively with body water jacket 3 are connected.Speed changer machine oil is cooled down
Device 12 is provided with second switch valve 120, and second switch valve 120 is used to be under the 3rd temperature range
Open mode so that coolant is from after the delivery port K2 outflows of body water jacket 3 through being cooled down by speed changer machine oil
Device 12 flows back to the first water pump 1.Understood according to noted earlier, from coolant from the delivery port of body water jacket 3
The coolant of K2 outflows has higher temperature, therefore, and change is being flowed through from the delivery port K2 coolants flowed out
The machine oil that can be transferred heat in speed changer oil cooler 12 during fast device oil cooler 12, makes
Machine oil is quickly increased to required temperature.Second switch valve 120 is used under first and second temperature range
Be closed so that between radiator 11 and the delivery port K2 of body water jacket 3, radiator 11 with
Completely cut off between the entrance of first water pump 1, so, can avoid because heat produced by engine is used
The machine oil that comes in heating transmission oil cooler 12 and extend warm-up period.
In addition, present invention also offers a kind of vehicle, it includes above-mentioned engine.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (10)
1. a kind of engine, including cooling system, it is characterised in that the cooling system includes：
First water pump, the first control valve, body water jacket, cooler for engine oil, the second control valve,
Pipeline, which is passed sequentially through, on the flow direction of coolant connects into closed loop, wherein, first control
Valve is connected by pipeline with the outlet of the first water pump, and second control valve includes first, second and third entrance,
The first entrance is connected by pipeline with cooler for engine oil, the second entrance by pipeline with
The delivery port connection of body water jacket；
Radiator, is connected by delivery port, the 3rd entrance of two articles of pipelines respectively with the body water jacket
Connect；
When the coolant of the delivery port of the body water jacket is the first temperature range, first control valve
For being closed down so that completely cut off between first water pump and body water jacket；
When the coolant of the delivery port of the body water jacket is second temperature scope, first control valve
For in open mode, second control valve be used for be in the first open mode so that coolant according to
Secondary flow through is divided into two parts, a part of coolant after first water pump, the first control valve, body water jacket
Successively the first water pump, another part cooling are flowed back to via the cooler for engine oil, the second control valve
Liquid directly flows back to the first water pump via second control valve；
When the coolant of the delivery port of the body water jacket is three temperature range, first control valve
For in open mode, second control valve be used for be in the second open mode so that coolant according to
Secondary flow through is divided into two parts, a part of coolant after first water pump, the first control valve, body water jacket
Successively the first water pump, another part cooling are flowed back to via the cooler for engine oil, the second control valve
Liquid flows back to the first water pump via the radiator, the second control valve successively；
In first, second and third temperature range, first temperature range is minimum, the 3rd temperature
Scope is maximum.
2. engine according to claim 1, it is characterised in that the cooling system also includes：Warm wind
Machine, is connected by the entrance of two pipelines delivery port respectively with the body water jacket, first water pump
Connect；
The warm-air drier is provided with first switch valve, and the first switch valve is used for when user has heating demand
In open mode so that coolant passes through from after body water jacket outflow and flows back to the first water pump by warm-air drier；
The first switch valve is used to be closed when user does not warm oneself demand so that the warm-air drier
Completely cut off between the delivery port of body water jacket, between the entrance of the warm-air drier and the first water pump.
3. engine according to claim 2, it is characterised in that the body water jacket includes the cylinder of connection
Body water jacket and cylinder cover water jacket；
There is the cylinder body water jacket the first water jacket entrance, the first water jacket to export, and the body water jacket enters water
Mouth, the delivery port of the body water jacket are 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 of the first water pump outflow flows to the water inlet of the body water jacket, described first successively
Water jacket outlet, the second water jacket entrance, the second water jacket outlet, the first water jacket entrance, the body water jacket
Delivery port；
The cooling system also includes：Second water pump and the first check valve, second water pump are located at warm wind
On pipeline between the delivery port of machine and body water jacket, first check valve by two pipelines respectively with
The outlet of warm-air drier, the outlet of the first water jacket are connected, and first check valve is cold for uni-directionally limiting
But liquid flows to the outlet of the first water jacket from warm-air drier.
4. engine according to claim 3, it is characterised in that the cooling system also includes：Supercharging
On device, the pipeline between outlet and the entrance of the first water pump positioned at the warm-air drier, from the warm wind
The coolant of machine outflow flows back to the first water pump via booster.
5. engine according to claim 4, it is characterised in that the cooling system also includes：Second
Check valve, is exported, between warm-air drier and booster first water jacket respectively by two pipelines
Pipeline is connected, and second check valve is used to uni-directionally limit coolant and export from the first water jacket to flow
To booster.
6. engine according to claim 3, it is characterised in that first water pump is mechanical pump, and
By engine driving.
7. engine according to claim 6, it is characterised in that second water pump is electronic pump.
8. engine according to claim 1, it is characterised in that the cooling system also includes：Speed change
Device oil cooler, passes through delivery port, first water of two pipelines respectively with the body water jacket
The entrance connection of pump；
The speed changer oil cooler is provided with second switch valve, and the second switch valve is used for described the
Open mode is under three temperature ranges so that coolant is passed through by speed changer from after body water jacket outflow
Oil cooler flows back to the first water pump；The second switch valve is used under first and second temperature range
It is closed so that between the delivery port of radiator and the body water jacket, the radiator and
Completely cut off between the entrance of one water pump.
9. the engine according to any one of claim 1 to 8, it is characterised in that also include：
Detection unit, the coolant temperature of the delivery port 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 to be in and close
State；
When the testing result is the second temperature scope, controls first control valve to be in and open
State, second control valve are in first open mode；
When the testing result is three temperature range, controls first control valve to be in and open
State, second control valve are in second open mode.
10. a kind of vehicle, it is characterised in that including the engine described in any one 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099245.3A CN107100713B (en) | 2016-02-23 | 2016-02-23 | Vehicle and its engine |
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| CN107100713B CN107100713B (en) | 2019-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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