CN107542605A - Triple valve and vehicle for D-EGR systems - Google Patents
Triple valve and vehicle for D-EGR systems Download PDFInfo
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- CN107542605A CN107542605A CN201610486191.6A CN201610486191A CN107542605A CN 107542605 A CN107542605 A CN 107542605A CN 201610486191 A CN201610486191 A CN 201610486191A CN 107542605 A CN107542605 A CN 107542605A
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- valve body
- row stomata
- air admission
- valve
- admission hole
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Abstract
The invention provides a kind of triple valve and vehicle for D egr systems, triple valve includes：Valve body, valve body have air admission hole, first row stomata and second row stomata, and air admission hole connects with the exhaust outlet of any one cylinder in engine, and first row stomata connects with gas handling system, and second row stomata connects with gas extraction system；Switching device, switching device are arranged in valve body；Drive device, drive device are arranged for driving switching device axial movement to turn on air admission hole and first row stomata or air admission hole and second row stomata.So in engine cold-start, switching device can turn on air admission hole and second row stomata, so that the waste gas in in-engine multiple cylinders all flows to catalyst converter, catalyst converter can be caused to be rapidly achieved operating temperature, and then the discharge of pernicious gas can be reduced, the environmental-protecting performance of vehicle can be improved.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly to a kind of triple valve for D-EGR systems and with the triple valve
Vehicle.
Background technology
D-EGR (waste gas recycling special Dedicated Exhaust Gas Recirculation-) research and development, which are contemplated, to be come from
In South West USA research institute, it is contemplated that only participated in exhaust gas recirculation event with single cylinder, recycled with this to reduce waste gas
The excess energy expended in journey.In engine operation process, the waste gas in only one cylinder enters in EGR line, by combustion
Participated in after burning room in exhaust cycle, that is to say, that this system will provide constant 25% ER EGR Rate (abbreviation EGR
Rate).Due to that can maintain that than relatively high and stable EGR rate, engine steady operation can be carried out under higher compression,
So D-EGR can improve Fuel Economy while discharge is reduced.
But D-EGR have one it is obvious the shortcomings that, exactly discharged in cold start-up it is very poor, main cause be exhausted air quantity reduce 25%,
Catalyst converter can not reach operating temperature in a short time, and the waste gas without catalysis is exhausted directly in air, so causing to discharge poor.
How to improve cold start emission is the problem that D-EGR engines must solve.
The content of the invention
In view of this, discharged the present invention is directed to propose a kind of triple valve for D-EGR systems, during solving engine cold-start
The problem of poor.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of triple valve for D-EGR systems, the vehicle include engine, gas handling system and gas extraction system, the threeway
Valve includes：Valve body, the valve body have air admission hole, first row stomata and second row stomata, the air admission hole and the engine
In any one cylinder exhaust outlet connection, the first row stomata connects with the gas handling system, the second row stomata and
The gas extraction system connection；Switching device, the switching device are arranged in the valve body；Drive device, the drive device
It is arranged for driving the switching device axial movement to turn on the air admission hole and the first row stomata or the air admission hole
With the second row stomata.
Further, the drive device includes：Actuator and the body of rod, the actuator drive the body of rod along the body of rod
Axial movement, the body of rod are stretched into the valve body, and the switching device is arranged on the body of rod.
Further, boss is provided with the valve body, through hole is provided with the boss, the body of rod is stretched through the through hole
Enter in the valve body.
Further, the switching device includes：First sealing gasket and the second sealing gasket, first sealing gasket and described second
Sealing gasket is spaced apart on the body of rod and set, and first sealing gasket is suitable to seal the first row stomata, second sealing
Pad is suitable to seal the second row stomata.
Further, the edge of first sealing gasket has the first guiding surface, and the edge of second sealing gasket has second
Guiding surface.
Further in the valve body includes：First valve body and the second valve body, have on first valve body air admission hole and
Second row stomata, there is first row stomata on second valve body, first valve body is fixedly connected with second valve body.
Further, the first valve body generally V-shaped, the generally straight shape of the second valve body.
Further, the angle between the air admission hole and the first row stomata is more than the air admission hole and the second row stomata
Between angle, and more than 90 °.
Further, the valve body, the switching device are made by stainless steel alloy material.
Relative to prior art, triple valve of the present invention has the advantage that：
According to the triple valve for D-EGR systems of the present invention, the triple valve can turn on the row of any one cylinder of engine
The exhaust outlet and gas extraction system of any one cylinder of gas port and gas handling system or conducting engine, so that vehicle exists
Waste gas during cold start-up operating mode in cylinder all flows to the catalyst converter of gas extraction system, and catalyst converter can be caused to be rapidly achieved work temperature
Degree, and then the discharge of pernicious gas can be reduced, the environmental-protecting performance of vehicle can be improved, and during normal vehicle operation,
The combustion chambers burn that waste gas in one cylinder can be entered back into each cylinder by gas handling system, so as to reduce waste gas
In amount of nitrogen oxides, the environmental-protecting performance and fuel economy of vehicle can be improved.
Another object of the present invention is to propose a kind of vehicle.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of vehicle, including above-mentioned triple valve.
Vehicle according to the invention, including the above-mentioned triple valve for D-EGR systems, due to being used for D-EGR with above-mentioned
The triple valve of system, vehicle noxious gas emission in cold start-up is few, and in normal work, discharged nitrous oxides are few, so as to
Lift environmental-protecting performance and fuel economy.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, illustrative examples of the invention and
It illustrates to be used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the connection diagram of the triple valve described in the embodiment of the present invention and engine, gas handling system and gas extraction system；
Fig. 2 is a sectional view of the triple valve described in the embodiment of the present invention；
Fig. 3 is another sectional view of the triple valve described in the embodiment of the present invention.
Description of reference numerals：
Triple valve 100；Engine 200；Cylinder 210；Gas handling system 300；Gas extraction system 400；
Valve body 10；Air admission hole a；First row stomata b；Second row stomata c；Boss 11；First valve body 12；Second valve body 13；
Switching device 20；First sealing gasket 21；First guiding surface 211；Second sealing gasket 22；Second guiding surface 221；
Drive device 30；Actuator 31；The body of rod 32.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can be mutually combined.
Describe the triple valve 100 of the embodiment of the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments, the triple valve 100 can
To apply in the D-EGR systems of vehicle, for example, as shown in figure 1, vehicle includes engine 200, the and of gas handling system 300
Gas extraction system 400, triple valve 100 are connected between engine 200, gas handling system 300 and gas extraction system 400, so as to
To control gas flow.
As shown in Figures 2 and 3, the triple valve 100 for D-EGR systems according to embodiments of the present invention can include：Valve body
10th, switching device 20 and drive device 30, valve body 10 have air admission hole a, first row stomata b and second row stomata c, such as
Shown in Fig. 1, air admission hole a connects with the exhaust outlet of any one cylinder 210 in engine 200, and first row stomata b is with entering
Gas system 300 connects, and second row stomata c connects with gas extraction system 400.Wherein, engine 200 can include multiple cylinders
The exhaust outlet of 210, air admission hole a only with a cylinder 210 in multiple cylinders 210 is connected, it is preferable that the cylinder 210
Positioned at the side of other cylinders 210, so waste gas of other cylinders 210 can flow to gas extraction system 400 by exhaust manifold
Catalyst converter, by catalyst converter catalyst effect after, waste gas is discharged into air, and the exhaust outlet of the cylinder 210 with
The air admission hole a connections of triple valve 100, so the waste gas of the cylinder 210 can select to arrange to air inlet system by first row stomata b
System 300 is arranged into the catalyst converter of gas extraction system 400 by second row stomata c.
As shown in Figures 2 and 3, switching device 20 is arranged in valve body 10, and drive device 30 is arranged for driving switching dress
20 axial movements are put to turn on air admission hole a and first row stomata b or air admission hole a and second row stomata c.Axial direction is drive device
30 axial direction, below content will be described in detail.It is understood that drive device 30 can drive switching device 20
Axial movement, switching device 20 can seal second row stomata c, and now switching device 20 can turn on air admission hole a and first
Steam vent b, the waste gas in cylinder 210 entered from air admission hole a can be arranged to gas handling system 300 by first row stomata b
In pipeline, and the waste gas participates in the burning of combustion chamber, the switching with being entered after other gas mixings in each cylinder 210
Pattern goes for normal vehicle operation process, and the nitrogen oxides in the waste gas of such vehicle discharge significantly reduces, so as to
Improve the environmental-protecting performance and fuel economy of vehicle.
Switching device 20 can seal first row stomata b, and now switching device 20 can turn on air admission hole a and second row stomata
C, the waste gas out of air admission hole a air inlets cylinder 210 can arrange the catalyst converter to gas extraction system 400 by second row stomata c
Interior, the switch mode goes for vehicle cold-start operating mode, and the waste gas in so multiple cylinders 210 is all arranged to catalyst converter,
So that catalyst converter is rapidly achieved operating temperature, the discharge of pernicious gas can be avoided, the feature of environmental protection of vehicle can be improved
Energy.
As shown in Figures 2 and 3, drive device 30 can include：Actuator 31 and the body of rod 32, actuator 31 and the body of rod 32
It is connected, actuator 31 drives axial direction of the body of rod 32 along the body of rod 32 to move, and the axial direction of above-mentioned drive device 30 is
The axial direction of the body of rod 32, the body of rod 32 are stretched into valve body 10, and switching device 20 is arranged on the body of rod 32.Thus, drive
Part 31 can drive length direction (i.e. axial direction) of the body of rod 32 along the body of rod 32 mobile, so as to which switching device 20 can be with
The body of rod 32 to move axially.Wherein, actuator 31 can be electromagnetic driver.
Specifically, as shown in Figures 2 and 3, boss 11 can be provided with valve body 10, through hole, bar are provided with boss 11
Body 32 is stretched into valve body 10 through through hole.Wherein through hole is fitted close with the body of rod 32, so as to avoid the leakage of waste gas.
And boss 11 can improve the structural strength of valve body 10 at least to some extent.
As shown in Figures 2 and 3, switching device 20 can include：First sealing gasket 21 and the second sealing gasket 22, the first sealing
The sealing gasket 22 of pad 21 and second is spaced apart on the body of rod 32 and set, and the first sealing gasket 21 is suitable to sealing first row stomata b, the
Two sealing gaskets 22 are suitable to sealing second row stomata c., can be with least one by setting the first sealing gasket 21 and the second sealing gasket 22
Determine the shift motion of the shortening body of rod 32 in degree, so that switching device 20 switches rapidly, triple valve 100 can be caused
It is quick on the draw, and the shift motion burden of electromagnetic driver can be reduced, the functional reliability of electromagnetic driver can be improved.
Wherein, when the first sealing gasket 21 seal first row stomata b when, vehicle is in cold start-up operating mode, now exhaust gas pressure compared with
It is small, so as to the exhaust gas leakage amount very little between through hole and the body of rod 32, when the second sealing gasket 22 seals second row stomata c, car
Normally travel state is in, now exhaust gas pressure is larger, but through hole and waste gas are kept apart by the second sealing gasket 22, so as to
There is no exhaust leak.
Alternatively, as shown in Figures 2 and 3, the edge of the first sealing gasket 21 can have the first guiding surface 211, and second is close
The edge of packing 22 can have the second guiding surface 221.First guiding surface 211 can seal in order to the first sealing gasket 21
First row stomata b, and sealing reliability of first sealing gasket 21 to first row stomata b, the second guiding surface can be improved
221 can seal second row stomata c in order to the second sealing gasket 22, and can improve the second sealing gasket 22 to second row stomata c
Sealing reliability.
According to the specific embodiment of the present invention, as shown in Figures 2 and 3, valve body 10 can include：The He of first valve body 12
Second valve body 13, there is air admission hole a and second row stomata c on the first valve body 12, there is first row stomata on the second valve body 13
B, the first valve body 12 are fixedly connected with the second valve body 13.First valve body 12 and the second valve body 13 can be docked by flange face,
Flange face can be bolted to connection.In an assembling process, the body of rod 32 and switching device 20 can stretch into the first valve body 12
Interior, the second valve body 13 is fixedly connected after the body of rod 32 and switching device 20 place with the first valve body 12, so that
Valve body 10 is reasonable in design, can improve the packaging efficiency of triple valve 100.As shown in Figures 2 and 3, the first valve body 12 can be with
Generally V-shaped, the second valve body 13 can be with generally straight shapes.It can so make it that the overall structure of valve body 10 is simple, can drop
The production difficulty of low valve body 10, the production efficiency of valve body 10 can be improved.
Preferably, as shown in Figures 2 and 3, the angle between air admission hole a and first row stomata b can be more than air admission hole a and
Angle between second row stomata c, and more than 90 °.Because vehicle is in, normally travel state is more, and such second seals
The time that pad 22 seals second row stomata c is longer, in other words, the time of the connection between air admission hole a and first row stomata b
It is longer, by rationally setting the angle between air admission hole a and first row stomata b, exhaust flow impedance can be preferably reduced,
So as to improve waste gas flowing smoothness.
In addition, it is necessary to explanation, triple valve 100 can be directly installed on engine 200, because EGT is higher,
The EGT of diesel engine is close to 800 DEG C, and the EGT of gasoline engine is close to 1000 DEG C, therefore triple valve 100 is required to bear
High temperature, valve body 10, switching device 20 can be made by resistant to elevated temperatures stainless steel alloy material.
Triple valve 100 for D-EGR systems according to embodiments of the present invention, the triple valve 100 can turn on engine 200
Any one cylinder 210 exhaust outlet and gas handling system 300 or turn on engine 200 any one cylinder 210 row
Gas port and gas extraction system 400, so that waste gas of the vehicle in cold start-up operating mode in cylinder 210 all flows to exhaust system
The catalyst converter of system 400, can cause catalyst converter to be rapidly achieved operating temperature, and then can reduce the discharge of pernicious gas, can be with
The environmental-protecting performance of vehicle is improved, and during normal vehicle operation, the waste gas in a cylinder 210 can pass through air inlet system
The combustion chambers burns that enter back into each cylinder 210 of system 300, can be with so as to reduce the amount of nitrogen oxides in waste gas
Improve the environmental-protecting performance and fuel economy of vehicle.
Vehicle according to embodiments of the present invention, include the triple valve 100 for D-EGR systems of above-described embodiment, due to
The triple valve 100 for D-EGR systems of above-described embodiment, vehicle noxious gas emission in cold start-up is few, in normal work
When discharged nitrous oxides it is few, so as to lift environmental-protecting performance and fuel economy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in the spiritual and former of the present invention
Within then, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. triple valve (100) for D-EGR systems, it is characterised in that the vehicle include engine (200), Gas handling system (300) and gas extraction system (400), the triple valve (100) include：Valve body (10), the valve body (10) have air admission hole (a), first row stomata (b) and second row stomata (c), institute The exhaust outlet that air admission hole (a) is stated with any one cylinder (210) in the engine (200) connects, the first row Stomata (b) connects with the gas handling system (300), and the second row stomata (c) connects with the gas extraction system (400)；Switching device (20), the switching device (20) are arranged in the valve body (10)；Drive device (30), the drive device (30) be arranged for driving the switching device (20) axial movement with Turn on the air admission hole (a) and the first row stomata (b) or the air admission hole (a) and the second row stomata (c).
- 2. the triple valve (100) according to claim 1 for D-EGR systems, it is characterised in that the driving dress Putting (30) includes：Actuator (31) and the body of rod (32), the actuator (31) drive the body of rod (32) along described The axial movement of the body of rod (32), the body of rod (32) are stretched into the valve body (10), switching device (20) installation On the body of rod (32).
- 3. the triple valve (100) according to claim 2 for D-EGR systems, it is characterised in that the valve body (10) On be provided with boss (11), is provided with through hole in the boss (11), the body of rod (32) stretches into institute through the through hole State in valve body (10).
- 4. the triple valve (100) according to claim 2 for D-EGR systems, it is characterised in that the switching dress Putting (20) includes：First sealing gasket (21) and the second sealing gasket (22), first sealing gasket (21) and described second Sealing gasket (22) is spaced apart on the body of rod (32) and set, and first sealing gasket (21) is suitable to seal the first row Stomata (b), second sealing gasket (22) are suitable to seal the second row stomata (c).
- 5. the triple valve (100) according to claim 4 for D-EGR systems, it is characterised in that described first is close The edge of packing (21) has the first guiding surface (211), and the edge of second sealing gasket (22) has second to be oriented to tiltedly Face (221).
- 6. the triple valve (100) according to claim 1 for D-EGR systems, it is characterised in that the valve body (10) Including：First valve body (12) and the second valve body (13), there is the air admission hole (a) and the on first valve body (12) Two steam vents (c), there is first row stomata (b), first valve body (12) and described on second valve body (13) Two valve bodies (13) are fixedly connected.
- 7. the triple valve (100) according to claim 6 for D-EGR systems, it is characterised in that first valve Body (12) generally V-shaped, the generally straight shape of second valve body (13).
- 8. the triple valve (100) according to claim 1 for D-EGR systems, it is characterised in that the air admission hole (a) angle between the first row stomata (b) is more than between the air admission hole (a) and the second row stomata (c) Angle, and more than 90 °.
- 9. the triple valve (100) according to claim 1 for D-EGR systems, it is characterised in that the valve body (10), The switching device (20) is made by stainless steel alloy material.
- 10. a kind of vehicle, it is characterised in that including being used for D-EGR systems according to any one of claim 1-9 Triple valve (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486191.6A CN107542605A (en) | 2016-06-28 | 2016-06-28 | Triple valve and vehicle for D-EGR systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486191.6A CN107542605A (en) | 2016-06-28 | 2016-06-28 | Triple valve and vehicle for D-EGR systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542605A true CN107542605A (en) | 2018-01-05 |
Family
ID=60962308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610486191.6A Pending CN107542605A (en) | 2016-06-28 | 2016-06-28 | Triple valve and vehicle for D-EGR systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706448A (en) * | 2019-03-18 | 2020-09-25 | 丰田自动车株式会社 | Exhaust gas recirculation valve preheating device |
| CN114060182A (en) * | 2020-08-04 | 2022-02-18 | 深圳臻宇新能源动力科技有限公司 | Engine with EGR system, control method and vehicle |
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| GB1073412A (en) * | 1963-08-06 | 1967-06-28 | Gulde Regelarmaturen Verwaltun | Improvements in or relating to three way fluid control valves |
| US3860033A (en) * | 1973-04-13 | 1975-01-14 | M & J Valve Co | Flow diverting apparatus and method |
| CN2168139Y (en) * | 1993-04-28 | 1994-06-08 | 王永理 | Tube-like three-way valve with high sealing performance |
| CN2331799Y (en) * | 1997-09-05 | 1999-08-04 | 青岛第六橡胶厂 | Three-way confluent stop valve |
| CN104884764A (en) * | 2012-06-28 | 2015-09-02 | 康明斯有限公司 | Techniques for controlling a dedicated egr engine |
| CN105370450A (en) * | 2014-08-07 | 2016-03-02 | 福特环球技术公司 | Dedicated-egr cylinder with variable charge motion |
| CN205225496U (en) * | 2015-12-23 | 2016-05-11 | 吉林大学 | Realize cold, controllable introducing device of hot EGR |
| CN105683542A (en) * | 2013-11-04 | 2016-06-15 | 卡明斯公司 | Systems and methods for controlling EGR flow during transient conditions |
-
2016
- 2016-06-28 CN CN201610486191.6A patent/CN107542605A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1073412A (en) * | 1963-08-06 | 1967-06-28 | Gulde Regelarmaturen Verwaltun | Improvements in or relating to three way fluid control valves |
| US3860033A (en) * | 1973-04-13 | 1975-01-14 | M & J Valve Co | Flow diverting apparatus and method |
| CN2168139Y (en) * | 1993-04-28 | 1994-06-08 | 王永理 | Tube-like three-way valve with high sealing performance |
| CN2331799Y (en) * | 1997-09-05 | 1999-08-04 | 青岛第六橡胶厂 | Three-way confluent stop valve |
| CN104884764A (en) * | 2012-06-28 | 2015-09-02 | 康明斯有限公司 | Techniques for controlling a dedicated egr engine |
| CN105683542A (en) * | 2013-11-04 | 2016-06-15 | 卡明斯公司 | Systems and methods for controlling EGR flow during transient conditions |
| CN105370450A (en) * | 2014-08-07 | 2016-03-02 | 福特环球技术公司 | Dedicated-egr cylinder with variable charge motion |
| CN205225496U (en) * | 2015-12-23 | 2016-05-11 | 吉林大学 | Realize cold, controllable introducing device of hot EGR |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706448A (en) * | 2019-03-18 | 2020-09-25 | 丰田自动车株式会社 | Exhaust gas recirculation valve preheating device |
| CN111706448B (en) * | 2019-03-18 | 2022-05-10 | 丰田自动车株式会社 | Exhaust gas recirculation valve preheating device |
| CN114060182A (en) * | 2020-08-04 | 2022-02-18 | 深圳臻宇新能源动力科技有限公司 | Engine with EGR system, control method and vehicle |
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Application publication date: 20180105 |