CN104912647B - Failure saves device and saves the internal-combustion engine cooling system of device with failure - Google Patents
Failure saves device and saves the internal-combustion engine cooling system of device with failure Download PDFInfo
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- CN104912647B CN104912647B CN201510069621.XA CN201510069621A CN104912647B CN 104912647 B CN104912647 B CN 104912647B CN 201510069621 A CN201510069621 A CN 201510069621A CN 104912647 B CN104912647 B CN 104912647B
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- vacuum chamber
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- 238000001816 cooling Methods 0.000 title claims abstract description 99
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 77
- 239000002826 coolant Substances 0.000 claims abstract description 175
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 239000000110 cooling liquid Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 5
- 230000008450 motivation Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Abstract
Device is saved the invention discloses a kind of failure and the internal-combustion engine cooling system of device is saved with failure.It includes cooling passage room, vacuum chamber and guiding channel that failure, which saves device, and the guiding channel is connected between cooling passage room and vacuum chamber.Valve member is mounted on the inside of cooling passage room, and vacuum driving component is mounted on the inside of the vacuum chamber.Failure, which saves device, can provide a kind of stand-by channel, for guiding coolant liquid from radiator to internal combustion engine in the case where the cold-start phase coolant liquid adjuster of internal combustion engine breaks down.
Description
Technical field
This patent disclosure relates generally to a kind of internal-combustion engine cooling system more particularly to a kind of bypass channels with interrupt function
Internal-combustion engine cooling system.
Background technique
Normally, internal-combustion engine cooling system includes cooling device, and coolant liquid flows through hair by radiator in cooling device
Motivation.Cooling device further includes interrupting bypass channel, is opened during the engine cold-start stage, so that coolant liquid is via side
Paths are recycled by engine, without being recycled by radiator.
Traditionally, the flowing of thermostatic valve (thermostatic valve) system control coolant liquid, and be equipped at least
One thermostatic valve driven by so-called thermal expansion member is equipped with bypass valve in thermal expansion member.Thermostatic valve and bypass valve are used
Following manner interconnects: during the engine cold-start stage, under the relatively low temperature of setting, and thermostatic valve closure and bypass valve
It opens, so that coolant liquid bypassed radiator.With the rising of temperature, thermostatic valve will open and bypass valve will be gradually closed,
So that coolant liquid is recycled before entering internal combustion engine by radiator.
In order to further decrease cooling liquid stream during the engine heating period and therefore heat engine faster,
Relatively new cooling device closure bypass is to form the coolant liquid without flowing in the heating period of engine.These are relatively new
Cooling device generally no longer have thermal expansion member because control assignment of traffic valve will be controlled by ECU.Just in case cooling
Plant failure, engine damage, these cooling devices need setting to prevent failure function cooling logical with direct unlatching in order to prevent
Road is to radiator, so that engine can obtain initial cooling.
Accordingly, it is desirable to provide a kind of more structurally sound internal-combustion engine cooling system, was used to during the engine cold-start stage
Control the bypass channel of interrupt function.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of internal-combustion engine cooling system, using simple structure and is adjusting
Valve or thermostatic valve terminate cold-start phase in the case where cannot opening.
In order to achieve the above object, a kind of failure redemption for internal-combustion engine cooling system is provided in the first aspect present invention
Device, which is characterized in that failure saves device and includes:
Cooling passage room, with coolant inlet and cooling liquid outlet；
Vacuum chamber, with vacuum inlet hole；
Valve member is mounted on the inside of the cooling passage room；And
Vacuum driving component is mounted on the inside of the vacuum chamber.
Failure described above saves device, in which:
Valve member includes valve plate and valve rod, and the valve rod extends out from the back side of the valve plate；
Vacuum driving component includes evacuated panel and vacuum chamber valve rod, and the vacuum chamber valve rod prolongs from the back side of the evacuated panel
It stretches.
Failure described above is saved device and is installed wherein the valve member further includes spring arrangement by the valve rod
In the inside of the cooling passage room, so that one end of the spring arrangement engages the back side of the valve plate, the spring dress
The other end set engages the inner wall of the cooling passage room.
Failure described above saves device, and wherein valve member is characterized in that: the valve plate is contacted with coolant liquid.
Failure described above saves device, wherein failure redemption device includes:
Path of navigation, between the cooling passage room and the vacuum chamber；
Wherein the valve rod and the vacuum chamber valve rod extend both facing to the path of navigation, so that the valve rod is rigidly
Being connected to the formation of vacuum chamber valve-stem integrated or the valve rod can be connected on the vacuum chamber valve rod with being mutually shifted.
Failure described above saves device, wherein the vacuum chamber valve rod includes:
Hole on the end of hollow reservoir and the vacuum chamber valve rod；
Wherein the valve rod extends into the hollow reservoir by the hole in the vacuum chamber valve stem end, thus institute
Stating valve rod can move reciprocatingly inside the hollow reservoir of the vacuum chamber valve rod.
Failure described above saves device, further includes:
Valve seal member is mounted on around the valve plate, for sealing the coolant liquid in the cooling passage room；With
And
Vacuum sealing component is mounted on around the evacuated panel, for maintaining the vacuum environment in the vacuum chamber.
Failure described above saves device, further includes:
Positive infundibulate neck, the interconnecting piece between the coolant inlet and the cooling passage room are formed just
To infundibulate neck.
Failure described above saves device, in which:
When applying vacuum to the vacuum chamber, the valve plate is closed the coolant inlet；
When not applying vacuum to the vacuum chamber, the valve plate opens the coolant inlet.
Failure described above saves device, further includes:
Reversed infundibulate neck, the interconnecting piece between the coolant inlet and the cooling passage room are formed instead
To infundibulate neck.
Failure described above saves device, in which:
When applying vacuum to the vacuum chamber, the valve plate opens the coolant inlet；
When not applying vacuum to the vacuum chamber, the valve plate is closed the coolant inlet.
Failure described above saves device and enters coolant liquid wherein the spring arrangement is adjusted in response to coolant liquid and enter
The preset pressure of mouth is to open the valve plate.
Failure described above saves device, wherein the evacuated panel, in response to the vacuum in the vacuum chamber, be pulled with
Open valve plate.
Failure described above saves device, it is characterised in that:
The failure is saved device and is used in internal-combustion engine cooling system, the internal-combustion engine cooling system include internal combustion engine and
Radiator；
Wherein the coolant inlet be connected to lead to the coolant drain mouth of radiator radiator coolant output it is logical
Road, and the cooling liquid outlet is connected to and leads to the coolant liquid of internal combustion engine and enter the engine coolant of entrance and enter channel.
Failure described above saves device, it is characterised in that:
The internal-combustion engine cooling system further includes vacuum generator；
Wherein the vacuum inlet hole is connected to the vacuum generator.
In order to achieve the above object, in second aspect, the present invention also provides a kind of internal-combustion engine cooling systems, comprising:
Failure saves device, with coolant inlet, cooling liquid outlet and vacuum inlet hole；
Internal combustion engine enters entrance and coolant drain mouth with coolant liquid；
Radiator enters entrance and coolant drain mouth with coolant liquid；
Coolant liquid adjuster has the first coolant inlet, the second coolant inlet and cooling liquid outlet；
Vacuum generator is exported with vacuum；And
Radiator coolant enters channel, is connected to the coolant drain mouth and the radiator of the internal combustion engine
The coolant liquid enter between entrance；Bypass branch is connected to the coolant drain mouth and the cooling of the internal combustion engine
Between first coolant inlet of liquid adjuster；Radiator coolant output channel is connected to the institute of the radiator
It states between coolant drain mouth and second coolant inlet of the coolant liquid adjuster；Engine coolant enters logical
The coolant liquid in road, the cooling liquid outlet and the internal combustion engine that are connected to the coolant liquid adjuster enters between entrance；
Failure saves bypass branch, saves device by the failure and is connected to the radiator coolant output channel and leads to
Enter between channel to the engine coolant of the internal combustion engine；And the vacuum pipeline, it is connected to the vacuum
Between ingate and vacuum output.
Internal-combustion engine cooling system described above, in which:
The coolant inlet is connected to the radiator coolant output channel, and the cooling liquid outlet is connected to
The engine coolant enters channel.
Internal-combustion engine cooling system described above further include:
Valve member is mounted on inside the coolant liquid adjuster；And
Engine controller is connected between the internal combustion engine and the coolant liquid adjuster, for the valve structure
Part provides driving.
In order to achieve the above object, in the third aspect, the present invention also provides a kind of failures for internal-combustion engine cooling system
Save device, characterized by comprising:
Cooling passage room, with coolant inlet and cooling liquid outlet；
Vacuum chamber, with vacuum inlet hole.
Valve member is mounted on the inside of cooling passage room, for being closed and opening coolant inlet；And
Vacuum driving component, vacuum driving component are mounted on the inside of vacuum chamber；
Wherein when apply vacuum arrive vacuum chamber when, vacuum driving component be activated with drive valve member unlatching coolant liquid enters
Mouthful, or
When apply vacuum arrive vacuum chamber when, vacuum driving component be activated with drive valve member closure coolant inlet.
In order to achieve the above object, in fourth aspect the present invention also provides a kind of internal-combustion engine cooling system, feature exists
In including the redemption device of failure described in the above third aspect.
In order to achieve the above object, at the 5th aspect, the present invention also provides a kind of coolings for internal-combustion engine cooling system
Liquid overpressure relief device, characterized by comprising:
Cooling passage room, with coolant inlet and cooling liquid outlet；
Valve member is mounted on the inside of the cooling passage room；
Wherein the valve member is contacted with coolant liquid, and the valve member is driven on by coolant liquid superpressure,
To connect the coolant inlet and the cooling liquid outlet to establish additional coolant liquid branch.
Coolant liquid overpressure relief device described above, in which:
The valve member further includes valve plate, valve rod and spring.
Coolant liquid overpressure relief device described above, in which:
The coolant inlet is connected to the discharge outlet of radiator, and the cooling liquid outlet is connected to the hair of internal combustion engine
Motivation coolant inlet.
By providing above structure, the present invention can achieve above-mentioned purpose.
Detailed description of the invention
The present invention will be described with reference to the drawings, in which:
Figure 1A illustrates the internal-combustion engine cooling system that device 115 is saved with failure according to one embodiment of present invention
100；
Figure 1B shows the valve 129 in cooling system 100 and is actuated to open bypass branch 120 and is closed radiator output
Channel 117；
Fig. 1 C shows the valve 129 in cooling system 100 and is actuated to closure bypass branch 120 and opens radiator output
Channel 117；
Fig. 2 shows the enlarged cross-sectional views that failure shown in Fig. 1 saves device 115；
Fig. 3 shows the case where valve member 221 is pulled upwardly when applying in vacuum to vacuum chamber 210 in Fig. 2；
Fig. 4 shows the case where valve member 221 is pushed up by the superpressure of coolant liquid in Fig. 2；
Fig. 5 is the three-dimensional cutaway view that failure shown in Fig. 1 saves device 115；And
Fig. 6-7 shows failure according to another embodiment of the invention and saves device 115 '.
Specific embodiment
Referring now to specific embodiment, its example is shown in the accompanying drawings.In the detailed description of specific embodiment, directionality art
Language, such as " top ", " bottom ", " top ", " lower section ", " left side ", the direction that " the right " etc. is described with reference to the accompanying figures come using.
Since the component of the embodiment of the present invention can be configured to many different directions, directional terminology is used as the purpose aided in illustrating
And it limits by no means.As much as possible, the same or similar label and symbol used in all attached drawings indicate the same or similar
Part.
Figure 1A illustrates the internal-combustion engine cooling system that device 115 is saved with failure according to one embodiment of present invention
100.As shown in Figure 1, internal-combustion engine cooling system 100 includes internal combustion engine 110, radiator 114, failure is saved device 115 and (is shown
In dotted line frame), coolant liquid adjuster 116, engine controller 118 and vacuum generator 124.Internal combustion engine 110 includes coolant liquid
Pump 112, be used to that coolant liquid to be driven to recycle in internal-combustion engine cooling system 100, and internal combustion engine 110 have be connected to engine
The coolant liquid of coolant inlet enters channel 123, also has the coolant liquid flow pass for being connected to engine coolant outlet
119.Engine coolant flow pass 119 is also connected to entrance channel 121 and the bypass branch 120 of radiator 114.It is cooling
Liquid adjuster 116 has the first entrance for being connected to bypass branch 120, is connected to the second of the output channel 117 of radiator 114
Entrance, and it is connected to the outlet that engine coolant enters channel 123.Coolant liquid adjuster 116 further includes valve 129, energy
It is enough to be rotated in coolant liquid adjuster 116 around pivot (or axis) 125.Engine controller 118 is connected to internal combustion engine 110 and cold
But between liquid adjuster 116, so as to the actuating unit (not shown) provided a signal in coolant liquid adjuster 116.It rings
(should be not shown, such as worm driving device etc.) from the driving of actuating unit (not shown), driver rotary valve 129 open or
It is closed to change the cooling circuit of coolant liquid adjuster 116.Failure is saved device 115 and is exported with radiator coolant is connected to
The access road 140 in channel 117, and it is connected to the exit passageway 141 of bypass branch 122.Bypass branch 122 is also connected to hair
Motivation coolant liquid enters channel 123 to form failure and save channel.
Structure as shown in Figure 1A, in normal operating, internal-combustion engine cooling system 100 can make to cool down by two passes
Liquid is recycled into internal combustion engine 110, it may be assumed that (1) passes through coolant liquid adjuster 116 to hair from radiator coolant output channel 117
Motivation coolant liquid enters channel 123, or (2) from bypass branch 120 by coolant liquid adjuster 116 to engine coolant into
Enter channel 123.If coolant liquid adjuster 116 is in fault condition, the failure in internal-combustion engine cooling system 100 of the invention is drawn
The offer failure redemption bypass branch 122 of device 115 is provided and enters channel 123 to engine coolant, makes coolant liquid from radiator 114
It is recycled to internal combustion engine 110.
In operation, start during cold-start phase when internal combustion engine 110 and the monitoring of engine controller 118 (uses
Unshowned suitable sensor) when being lower than first predetermined value to the temperature of internal combustion engine 110, engine controller 118 provides the
One driving signal is closed all coolant liquid circulation loops to coolant liquid adjuster 116.In this way, internal combustion engine 110 can be faster
It is heated to operation temperature, to reduce fuel consumption and exhaust gas discharge.When engine controller 118 monitors the temperature of internal combustion engine 110
When degree is greater than or equal to second predetermined value, engine controller 118 provides the second driving signal to coolant liquid adjuster 116 to open
It opens the first entrance for being connected to bypass branch 120 and closure is connected to the second entrance of radiator output channel 117, so as to cold
But liquid, which does not pass through radiator 114, can be recycled into internal combustion engine 110.When engine controller 118 monitors internal combustion engine 110
Temperature be greater than or equal to third predetermined value when, engine controller 118 provide third driving signal come rotate coolant liquid adjust
Device 116, to open its second entrance for being connected to radiator coolant output channel 117 and closure is connected to bypass branch
120 first entrance, so that coolant liquid is recycled into internal combustion engine 110 by radiator 114.
If coolant liquid adjuster 116 is in malfunction for some reason, coolant liquid adjuster 116 cannot open it
In any circuit；Or not by radiator 114, and just coolant liquid flow pass 119 is connected merely by bypass branch 120
Sending and receiving motivation 110.When coolant liquid can be recycled not at all or by radiator 114 to recycle when, if not of the invention
Failure saves device 115, it may occur that the danger that internal combustion engine 110 overheats.In the present invention, when engine controller 118 monitors
When causing the temperature of engine to be greater than predetermined value due to the fault condition of coolant liquid adjuster 116 (overheat condition), engine control
Device 118 processed provides a signal to trigger vacuum generator 124, saves device 115 to failure to apply vacuum.In response to true
Power caused by sky, failure save device 115 and open its valve plate 230 (see Fig. 2) to save bypass branch 122 by failure come even
It connects radiator coolant output channel 117 and enters channel 123 to engine coolant.Using the present invention, even if coolant liquid is adjusted
Device 116 is in malfunction, and coolant liquid still is able to be recycled to internal combustion engine 110 by radiator 114, to prevent internal combustion engine 110
Overheat.
Figure 1B is shown, and under the control of engine controller 118, valve 129 is actuated to open bypass branch 120 and close
Close radiator coolant output channel 117；And Fig. 1 C is shown, and under the control of engine controller 118, valve 129 is driven
It moves to be closed bypass branch 120 and open radiator coolant output channel 117.
According to one embodiment of present invention, Fig. 2 shows the enlarged sections that failure shown in Figure 1A-C saves device 115
Figure.As shown in Fig. 2, failure, which saves device 115, includes vacuum chamber 210, cooling passage room 212, and it is connected to vacuum chamber 210
Path of navigation 214 between cooling passage room 212.At the top of vacuum chamber 210, have through hose shown in Figure 1A-C
126 are connected to the ingate 240 of vacuum generator 124.Extend from the bottom (with reference to the direction of Fig. 2) of cooling passage room 212
Entrance pipe 140 is connected to radiator coolant output channel 117 shown in Figure 1A-C.And from cooling passage room 212
Side (with reference to the direction of Fig. 2) extend outlet 141, be connected to failure shown in Figure 1A-C save bypass branch 122.
Valve member 221 is installed inside cooling passage room 212.Valve member 221 is including valve plate 230 and is located at valve plate
The valve seal member (or ring) 232 of 230 perimeters.Valve rod 224 extends out from the back side of valve plate 230, and shoulder 225 is from valve
It extends out beside the end of bar 224 (with reference to the direction of Fig. 2).Connection between inlet tube 140 and cooling passage room 212
Portion forms reversed infundibulate neck 231, it means that the diameter D1 of cooling passage room 212 is greater than the diameter of inlet tube 140
D2, so that the diameter of infundibulate neck 231 is gradually reduced from cooling passage room 212 to the direction of inlet tube 140 (see Fig. 3).
Periphery around valve plate 230 forms infundibulate edge 233 (see Fig. 3-4), and reversed infundibulate neck 231 is complementary, so as to
When the edge of valve plate 230 233 engages reversed infundibulate neck 231, the infundibulate edge 233 can be in containment member
Seal failure saves bypass branch 122 under 232 assistance.And in 212 the inside of cooling passage room, spring arrangement 234 is passed through
It valve rod 224 and is installed between valve plate 230 and the upper base wall (or bar shoulder 225) of cooling passage room 212.Spring dress
Set the back side of 234 one end engagement valve plate 230, the top bottom of the other end engagement cooling passage room 212 of spring arrangement 234
Wall.
Vacuum driving component 235 is installed inside vacuum chamber 210.Vacuum driving component 235 includes evacuated panel 236 and position
In the vacuum sealing component (or ring) 238 of 236 perimeter of evacuated panel.Vacuum chamber valve rod 239 extends from the bottom of evacuated panel 236
Out (with reference to the direction of Fig. 2).The size (or diameter) of vacuum chamber valve rod 239 is arranged to lead to along guidance (or being suitable for)
Road 214 moves back and forth, and evacuated panel 236 is sized to move back and forth along vacuum chamber 210 (or being suitable for).When
When evacuated panel 236 is moved back and forth along vacuum chamber 210, vacuum sealing component 238 will maintain the vacuum environment of vacuum chamber 210.Very
Empty room valve rod 239 includes hollow reservoir 252 to accommodate valve rod 224.The size (or diameter) of bar shoulder 225 is provided so that valve
Bar 224 can move back and forth (or being suitable for) along the cavity 252 of vacuum chamber valve rod 239.The diameter ratio of bar shoulder 225 (see Fig. 1)
Hole 254 on 239 end of vacuum chamber valve rod is big (see Fig. 3), in order to when vacuum drive member 235 moves up, bar shoulder
225 rest on the inner wall in the hole 254 on 239 end of vacuum chamber valve rod, in order to which evacuated panel 236 can be to correspondingly pull-up valve
Component 221 (with reference to the direction of Fig. 2)；When vacuum drive member 235 moves down while not moving (but vacuum chamber valve rod 239),
Bar shoulder 225 may exit off the inner wall in the hole 254 on 239 end of vacuum chamber valve rod, in order to which evacuated panel 236 can not need
It is moved down in the case where mobile (or shock) valve member 221 (such as seeing Fig. 4).It is similar, when valve member 221 moves up
While not moving (but vacuum driving component 235) does not need mobile (or shock) vacuum driving component 235 (as shown in Figure 4).Valve rod
Bar shoulder 225 on 224 can be put into the cavity of vacuum chamber valve rod 239 in the form of buckle.
Fig. 3 shows the case where valve member 221 is pulled upwardly when applying vacuum to vacuum chamber 210 (with reference to the side of Fig. 3
To).Specifically, when engine controller 118 monitors that the fault condition due to (for example) coolant liquid adjuster 116 causes to start
When machine temperature is greater than predetermined value (i.e. overheat condition), provide driving signal to trigger vacuum generator 124, apply vacuum to
Vacuum chamber 210.The vacuum of 210 the inside of vacuum chamber applies suction to evacuated panel 236, moves up vacuum driving component 235,
Overcome the bias force of spring arrangement 234, and valve member 221 pulled up by the stress of bar shoulder 225, opens inlet tube 140,
Enter (such as Figure 1A-the C of channel 123 in order to which coolant liquid can flow into engine coolant by inlet tube 140 and outlet 141
It is shown).In vacuum after the disappearance of vacuum chamber 210, the downward past valve member 221 that pushes back of the bias force from spring arrangement 234 is with weight
Newly contacts and be closed inlet tube 140.Vacuum source can come from existing inlet manifold, oil-sealed rotary pump, whirlpool in internal-combustion engine system
Air inlet pipe, etc. before wheel pressurization.
Fig. 4 shows the case where valve member 221 is pushed upwardly by the over-voltage of coolant liquid (with reference to the direction of Fig. 4).Such as
Fruit coolant pump 112 is mechanically driven and stops it without clutch during the interrupt phase of cooling liquid stream, may
The over-voltage of coolant liquid can be generated.Specifically, when the over-voltage of coolant liquid occurs, it is cooling it is hydraulic can to 230 applied force of valve plate with
Overcome the bias force of spring arrangement 234 and push up valve member 221 to open inlet tube 140, allows coolant liquid from entering
Mouth pipe 140 and outlet 141 are flowed into engine coolant and enter channel 123, to reduce the over-voltage of coolant liquid.When coolant liquid
When pressure returns to normal value, the bias force from spring arrangement 234 is downwards toward valve member 221 is pushed back, to contact and be closed again
Inlet tube 140.By the cracking pressure for suitably adjusting the adjustable coolant liquid of spring arrangement 234.In order to further avoid wanting
The complication for considering the adjustment process of spring caused by the frictional force from containment member 238, by valve plate 230 and evacuated panel 236
The vacuum chamber valve rod 239 being connected is configured to have hollow reservoir 252, and vacuum chamber valve rod 224 is movably mounted at
In vacuum chamber valve rod 239.It has a structure in which, in the case where coolant liquid over-voltage, when valve plate 230 is in cooling passage room
When moving in 212, the evacuated panel 236 with containment member 238 does not move in vacuum chamber 210.
As shown in Fig. 2, spring arrangement 234 pushes down on valve when not applying vacuum to evacuated panel 236 (or vacuum chamber 210)
Plate 230, so that the infundibulate neck 231 that the edge join of valve plate 230 is reversed, to be closed inlet tube 140.As shown in figure 3, working as
When applying vacuum to evacuated panel 236 (or vacuum chamber 210), evacuated panel 236 pulls up valve plate 230 to overcome spring arrangement 234
Bias force, to open inlet tube 140.
Fig. 5 is the three-dimensional cutaway view that failure shown in Figure 1A-C saves device 115.In the case where the diagram of Fig. 5 helps, in Fig. 2-4
Component shape and configuration show it is apparent.As shown in figure 5, it includes cylinder vacuum room that failure, which saves device 115,
210, cylindrical cooling passage room 212 and the cylinder being connected between vacuum chamber 210 and cooling passage room 212 guide
Access 214.Valve member 221 is installed inside cooling passage room 212 comprising valve rod 224, valve plate 230, valve seal member
232 and spring arrangement 234.Vacuum driving component 235 is installed inside vacuum chamber 210 comprising evacuated panel 236, vacuum
Containment member 238 and vacuum chamber valve rod 239.
As alternative embodiment, thus it is possible to vary some designs, valve plate 230 can be operated in opposite form.Specifically
, when applying vacuum and arriving vacuum chamber 210, valve plate 230 can remain closed position, and when vacuum is from the disappearance of vacuum chamber 210
When, valve plate 230 can be moved to open position.
Fig. 6-7 shows failure according to another embodiment of the invention and saves device 115 '.
In embodiment shown in Fig. 6-7, all components therein all with it is shown in Figure 2 identical, in addition to the neck in Fig. 6-7
Portion 231 ' and valve plate 230 ' from Fig. 2 neck 231 and valve plate 230 it is different；That is, the neck 231 ' in Fig. 6 is positive
Infundibulate, and the neck 231 in Fig. 2 is reversed infundibulate.Specifically, in Fig. 6, the diameter D1 ' of cooling passage room 212
The diameter of infundibulate neck 231 ' less than the diameter D2 ' and forward direction of inlet tube 140 is from cooling passage room 212 to inlet tube
140 increase.Infundibulate edge 233 ', and positive 231 ' complementation of infundibulate neck are formed around the periphery of valve plate 230 ', with
When edge join infundibulate neck 231 ' of convenient valve plate 230 ', the infundibulate edge can be in the assistance of containment member 232 '
Lower seal failure saves bypass branch 122.
As shown in fig. 6, spring arrangement 234 pushes down on valve when not applying vacuum to evacuated panel 236 (or vacuum chamber 210)
Plate 230 ', so that the edge of valve plate 230 ' leaves positive infundibulate neck 231 ', to open inlet tube 140.Such as Fig. 7 institute
Show, when applying vacuum to evacuated panel 236 (or vacuum chamber 210), evacuated panel 236 pulls up valve plate 230 ' to overcome spring arrangement
234 bias force, so as to the infundibulate neck 231 ' of the edge join forward direction of valve plate 230 ', to be closed inlet tube 140.
The advantage of Fig. 6-7 illustrated embodiment is: even if vacuum source breaks down, preventing defective valves 115 ' from still acting as
With making that defective valves is prevented to be better able to prevent failure.
It should be noted that the over-voltage of coolant liquid can damage certain components or reduction internal combustion engine 110 in internal combustion engine 110
The service life of interior certain components.The structure that failure of the invention saves device 115 can play failure simultaneously and save and drop
The function (or effect) of low over-voltage.
It is also to be noted that in alternative embodiments, when valve member 221 and vacuum driving component 235 pass through suitably
When ground adjusts spring arrangement 234 and is manufactured to one (or one), task/purpose of the invention still can be executed/reached.
It should also be noted that some existing cooling systems interrupt the cooling of internal combustion engine completely during cold-start phase
Liquid circulation.During such circulation stops, because coolant liquid does not pass through cycle of engine, Bu Nengzai during cold-start phase
Implement to control by thermal expansion member, and therefore the transient temperature information of engine cannot be passed to thermal expansion member to guarantee
It is cold-started the timely termination stopped.It should also be noted that some other existing cooling systems are by using being driven by motor
Control valve to adjust the amount of coolant liquid, thus the cold start-up needed for completing.Coolant liquid adjuster is driven by engine controller,
And engine controller also receives its temperature data from suitable sensor.But using for example being protected with the spring biases strength
It holds in the structure of positional relationship, the regulating valve of electric drive is very expensive, because driving must be supported enduringly in operation
It is anti-can prolonged work and fail-safe spring, and it also requires adjusting the position of driving, both of which is expensive.
It is well known that failure known to major part save valve using expansion (or waxed) component operate, it is described expansion (or
Person is waxed) component needs some volume flows (liquid cooled heat) to detect temperature and work.At the dead head condition, without volume
It flow and therefore cannot be worked by using expansion (or waxed) component.In contrast, structure of the invention is in zero delivery
In the case of work it is good.Also, expanding (or waxed) component is expensive component, be removed from the present invention with reduce at
This.Most of component of the invention prevents from being also necessary, therefore the present invention and existing in failure system at " waxed component "
Structure and component are compatible, it is possible that reducing manufacturing cost well.
Additionally, it is known that cooling system be very expensive using the biggish vacuum valve with extremely complex device,
It therefore is infeasible.In contrast, structure of the invention is more simple and is more reliable solution.
Currently, zero delivery is used without many cooler regulators, but it is many in development, and therefore do not have
Much prevent fault solution available on the market.Currently, " waxed component " structure be only mass production can
Use solution.The present invention is economical to be a kind of feasible with preventing the zero-flow condition of error protection from providing, simpler
With reliable solution.
In the case where not departing from claimed purport, various modifications and variations are done to this field to embodiment described here
Technical staff is obvious.Therefore, this specification is intended to cover the modifications and variations of variable embodiment described herein,
Such modification and variation are provided in the range of additional requirement and its equivalent.
Claims (20)
1. a kind of failure for internal-combustion engine cooling system saves device (115,115 '), which is characterized in that the failure is saved
Device includes:
Cooling passage room (212), the cooling passage room (212) have coolant inlet (140) and cooling liquid outlet
(141)；
Vacuum chamber (210), the vacuum chamber (210) have vacuum inlet hole (240)；
Valve member (221), the valve member (221) is mounted on the inside of the cooling passage room (212), for being closed and opening
Open the coolant inlet (140)；And
Vacuum driving component (235), the vacuum driving component (235) are mounted on the inside of the vacuum chamber (210).
2. failure according to claim 1 saves device, in which:
The valve member (221) includes valve plate (230,230 ') and valve rod (224), the valve rod (224) from the valve plate (230,
230 ') the back side extends out；
The vacuum driving component (235) includes evacuated panel (236) and vacuum chamber valve rod (239), the vacuum chamber valve rod (239)
It extends out from the back side of the evacuated panel (236).
3. failure according to claim 2 saves device, wherein the valve member (221) further include:
Spring arrangement (234), the spring arrangement (234) are mounted on the cooling passage room by the valve rod (224)
(212) the inside, so that one end of the spring arrangement (234) engages the back side of the valve plate (230,230 '), it is described
The other end of spring arrangement (234) engages the inner wall of the cooling passage room (212).
4. failure according to claim 3 saves device, wherein the valve member (221) is characterized in that:
The valve plate (230,230 ') contacts with coolant liquid.
5. failure according to claim 2 saves device, wherein failure redemption device includes:
Path of navigation (214), the path of navigation (214) are located at the cooling passage room (212) and the vacuum chamber (210)
Between；
Wherein the valve rod (224) and the vacuum chamber valve rod (239) extend both facing to the path of navigation (214), thus institute
It states valve rod (224) and is rigidly connected to that the vacuum chamber valve rod (239) is integrally formed or the valve rod (224) can be mutually shifted ground
It is connected on the vacuum chamber valve rod (239).
6. failure according to claim 2 saves device, wherein the vacuum chamber valve rod (239) be characterized in that include:
Hole on the end of hollow reservoir (252) and the vacuum chamber valve rod (239)；
The hole on the end that wherein valve rod (224) passes through the vacuum chamber valve rod (239) extends into institute
Hollow reservoir (252) are stated, so that the valve rod (224) can be inside the hollow reservoir of the vacuum chamber valve rod (239)
It moves reciprocatingly.
7. failure according to claim 2 saves device, it is characterised in that the failure saves device further include:
Valve seal member (232), the valve seal member (232) is mounted on around the valve plate (230,230 '), for sealing
Coolant liquid in the cooling passage room (212)；And
Vacuum sealing component (238), the vacuum sealing component (238) is mounted on around the evacuated panel (236), for maintaining
Vacuum environment in the vacuum chamber (210).
8. failure according to claim 1 saves device, it is characterised in that the failure saves device further include:
Positive infundibulate neck (231 '), between the coolant inlet (140) and the cooling passage room (212)
Interconnecting piece forms the infundibulate neck (231 ') of the forward direction.
9. failure according to claim 2 saves device, wherein
When applying vacuum to the vacuum chamber (210), the valve plate (230 ') is closed the coolant inlet (140)；
When not applying vacuum to the vacuum chamber (210), the valve plate (230 ') opens the coolant inlet (140).
10. failure according to claim 1 saves device, it is characterised in that the failure saves device further include:
Reversed infundibulate neck (231), between the coolant inlet (140) and the cooling passage room (212)
Interconnecting piece forms the reversed infundibulate neck (231).
11. failure according to claim 2 saves device, wherein
When applying vacuum to the vacuum chamber (210), the valve plate (230) opens the coolant inlet (140)；
When not applying vacuum to the vacuum chamber (210), the valve plate (230) is closed the coolant inlet (140).
12. failure according to claim 3 saves device, it is characterised in that:
Wherein the spring arrangement (234) is adjusted, and the preset pressure of the coolant inlet (140) is entered in response to coolant liquid
To open the valve plate (230).
13. failure according to claim 2 saves device, it is characterised in that:
The wherein evacuated panel (236) is pulled in response to the vacuum in the vacuum chamber (210) to open the valve plate
(230)。
14. -13 described in any item failures save device according to claim 1, it is characterised in that:
The failure is saved device and is used in internal-combustion engine cooling system (100), and the internal-combustion engine cooling system (100) includes interior
Combustion engine (110) and radiator (114)；
Wherein the coolant inlet (140) be connected to lead to the coolant drain mouth of the radiator (114) radiator it is cold
But liquid output channel (117), and the cooling liquid outlet (141) be connected to lead to the coolant liquid of the internal combustion engine (110) into
The engine coolant of entrance enters channel (123).
15. failure according to claim 14 saves device, it is characterised in that:
The internal-combustion engine cooling system (100) further includes vacuum generator (124)；
Wherein the vacuum inlet hole (240) is connected to the vacuum generator (124).
16. a kind of internal-combustion engine cooling system (100), it is characterised in that the internal-combustion engine cooling system (100) includes:
Failure saves device (115,115 '), and the failure, which saves device (115,115 '), to be had such as any one of claim 1-13
The coolant inlet (140), cooling liquid outlet (141) and vacuum inlet hole (240)；
There is coolant liquid to enter entrance and coolant drain mouth for internal combustion engine (110), the internal combustion engine (110)；
There is coolant liquid to enter entrance and coolant drain mouth for radiator (114), the radiator (114)；
Coolant liquid adjuster (116), the coolant liquid adjuster (116) have the first coolant inlet, the second coolant inlet
And cooling liquid outlet；
Vacuum generator (124), the vacuum generator (124) export with vacuum；And
Radiator coolant enters channel (121), and the radiator coolant enters channel (121) and is connected to the internal combustion engine
(110) coolant liquid of the coolant drain mouth and the radiator (114) enters between entrance；Bypass branch
(120), the bypass branch (120) is connected to the coolant drain mouth and the coolant liquid tune of the internal combustion engine (110)
Between first coolant inlet for saving device (116)；Radiator coolant output channel (117), the radiator coolant
Output channel (117) is connected to the coolant drain mouth and the coolant liquid adjuster (116) of the radiator (114)
Between second coolant inlet；Engine coolant enters channel (123), and the engine coolant enters channel
(123) cooling liquid outlet of the coolant liquid adjuster (116) and the coolant liquid of the internal combustion engine (110) are connected to
Into between entrance；Failure saves bypass branch (122), and the failure is saved bypass branch (122) and saved by the failure
It device (115,115 ') and is connected to the radiator coolant output channel (117) and leads to the internal combustion engine (110)
The engine coolant enters between channel (123)；And vacuum pipeline (126), the vacuum pipeline (126) are connected to institute
It states between vacuum inlet hole (240) and vacuum output.
17. internal-combustion engine cooling system (100) according to claim 16, it is characterised in that:
The coolant inlet (140) is connected to the radiator coolant output channel (117), and the cooling liquid outlet
(141) it is connected to the engine coolant and enters channel (123).
18. internal-combustion engine cooling system (100) according to claim 17, it is characterised in that the internal-combustion engine cooling system
(100) further include:
Valve member (129), the valve member (129) are mounted on inside the coolant liquid adjuster (116)；And
Engine controller (118), the engine controller (118) are connected to the internal combustion engine (110) and the coolant liquid
Between adjuster (116), for providing driving to the valve member (129).
19. a kind of failure for internal-combustion engine cooling system saves device (115,115 '), it is characterised in that the failure is saved
Device (115,115 ') includes:
Cooling passage room (212), the cooling passage room (212) have coolant inlet (140) and cooling liquid outlet
(141)；
Vacuum chamber (210), the vacuum chamber (210) have vacuum inlet hole (240)；
Valve member (221), the valve member (221) is mounted on the inside of the cooling passage room (212), for being closed and opening
Open the coolant inlet (140)；And
Vacuum driving component (235), the vacuum driving component (235) are mounted on the inside of the vacuum chamber (210)；
Wherein when applying vacuum to the vacuum chamber (210), the vacuum driving component (235) is activated to drive the valve
Component (221) opens the coolant inlet (140), or
When applying vacuum to the vacuum chamber (210), the vacuum driving component (235) is activated to drive the valve member
(221) it is closed the coolant inlet (140).
20. a kind of internal-combustion engine cooling system (100), it is characterised in that the internal-combustion engine cooling system (100) includes claim
Failure described in 19 saves device (115,115 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069621.XA CN104912647B (en) | 2014-03-10 | 2015-02-10 | Failure saves device and saves the internal-combustion engine cooling system of device with failure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086323 | 2014-03-10 | ||
| CN2014100863237 | 2014-03-10 | ||
| CN201510069621.XA CN104912647B (en) | 2014-03-10 | 2015-02-10 | Failure saves device and saves the internal-combustion engine cooling system of device with failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104912647A CN104912647A (en) | 2015-09-16 |
| CN104912647B true CN104912647B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510069621.XA Expired - Fee Related CN104912647B (en) | 2014-03-10 | 2015-02-10 | Failure saves device and saves the internal-combustion engine cooling system of device with failure |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10119499B2 (en) * | 2017-01-27 | 2018-11-06 | Ford Global Technologies, Llc | Exhaust gas recirculation system and method for operation thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545333A (en) * | 1983-06-08 | 1985-10-08 | Nissan Motor Co., Ltd. | System for controlling coolant temperature of internal combustion engine |
| CN1806141A (en) * | 2003-04-24 | 2006-07-19 | 特拉华兰科有限公司 | Stepper motor driven fluid valve |
| CN201013438Y (en) * | 2007-03-30 | 2008-01-30 | 刘立华 | Automobile engine forced-circulation type water-cooling system |
| CN101349187A (en) * | 2007-03-16 | 2009-01-21 | 万国引擎知识产权有限责任公司 | Engine thermostat having bypass pressure-dampening fluid passage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4530008B2 (en) * | 2007-08-22 | 2010-08-25 | 株式会社デンソー | Failure diagnosis device for thermal control system for internal combustion engine |
-
2015
- 2015-02-10 CN CN201510069621.XA patent/CN104912647B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545333A (en) * | 1983-06-08 | 1985-10-08 | Nissan Motor Co., Ltd. | System for controlling coolant temperature of internal combustion engine |
| CN1806141A (en) * | 2003-04-24 | 2006-07-19 | 特拉华兰科有限公司 | Stepper motor driven fluid valve |
| CN101349187A (en) * | 2007-03-16 | 2009-01-21 | 万国引擎知识产权有限责任公司 | Engine thermostat having bypass pressure-dampening fluid passage |
| CN201013438Y (en) * | 2007-03-30 | 2008-01-30 | 刘立华 | Automobile engine forced-circulation type water-cooling system |
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|---|---|
| CN104912647A (en) | 2015-09-16 |
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