CN107740736A - A kind of EGR valve - Google Patents
A kind of EGR valve Download PDFInfo
- Publication number
- CN107740736A CN107740736A CN201710791908.2A CN201710791908A CN107740736A CN 107740736 A CN107740736 A CN 107740736A CN 201710791908 A CN201710791908 A CN 201710791908A CN 107740736 A CN107740736 A CN 107740736A
- Authority
- CN
- China
- Prior art keywords
- valve
- sliding block
- valve rod
- motor
- adapter sleeve
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/68—Closing members; Valve seats; Flow passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/72—Housings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention relates to a kind of EGR valve, including motor assembly, the motor assembly includes motor shaft, it is characterised in that：Described motor shaft one end is connected with the plug-assembly other end and is connected with valve component, the valve component includes valve rod, described valve rod one end is connected with valve plate, the other end of the relative connection valve plate of the valve rod is plugged in sliding block by adapter sleeve, the valve rod can opposing slider axial wobble by adapter sleeve, the relative other end for being connected to adapter sleeve of the sliding block and motor axis connection, it is in 90 ° that the sliding block intersects with motor shaft, and beneficial effects of the present invention are：Using torque motor, the size of reduction valve body cumulative volume, built-in active control chip reduces the requirement to ECU, and overall structure is simple, occupies little space, and the response time is fast.
Description
Technical field
The present invention relates to EGR technology field, and in particular to a kind of EGR valve.
Background technology
Gas recirculation system (Exhaust Gas Recirculation) abbreviation EGR, it is by diesel engine or gasoline engine production
The sub-fraction of raw waste gas sends cylinder back to again.EGR gas is due to will retarded combustion process with inertia, that is to say, that
Burning velocity will slow down so as to cause the pressure initiation process in combustion chamber to slow down, here it is oxynitrides can reduction master
Want reason.Can reduce total exhaust gas flow (mass flow) in addition, improving ER EGR Rate, thus it is total in waste gas discharge
Pollutant output quantity relative will reduce.The task of egr system is exactly the recirculation volume for making waste gas in each operating point
Reach optimum, so that combustion process is in optimal situation all the time, the final succession ensured in emission is most
It is low.
Appropriate engine combustion waste gas can be reintroduced back to air inlet pipe by electric control EGR, be entered after being mixed with fresh air
Cylinder carries out second-time burning, so as to reduce gas in-cylinder combustion temperature, to reduce NOx generations and discharge capacity, general peace
Between exhaust manifold and inlet manifold.Existing linear reciprocating electric control EGR valve is after long-play, valve week
Enclose and be easy to produce carbon distribution and can not clear up, it is slower and slower and then stuck to ultimately result in EGR valve response speed, Wu Fazheng
Often open.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of EGR valve.
To achieve the above object, the invention provides following technical scheme：A kind of EGR valve, including motor assembly, the electricity
Machine assembly includes motor shaft, it is characterised in that：Described motor shaft one end is connected with the plug-assembly other end and is connected with valve body group
Part, the valve component include valve rod, and described valve rod one end is connected with valve plate, the other end of the relative connection valve plate of the valve rod
Sliding block is plugged in by adapter sleeve, the valve rod by adapter sleeve can opposing slider axial wobble, the sliding block is relative to be connected to
The other end of adapter sleeve and motor axis connection, the sliding block intersect with motor shaft in 90 °.
Using above-mentioned technical proposal, using torque motor as motor assembly, not only the response time is fast, torque fluctuations are small,
And it is in 90 ° of vertical direction that valve component, which is arranged on motor, reduces whole valve body space-consuming, reduces the volume of valve body.
A kind of above-mentioned EGR valve can be further arranged to：The adapter sleeve includes annular portion, and the valve rod is plugged in circle
Ring portion, the one end of the annular portion away from valve rod, which stretches out, is provided with the relative contiguous block set up, and has between the contiguous block
With sliding block thickness identical gap, the adapter sleeve is connected by contiguous block with sliding block.
Using above-mentioned technical proposal, can be connected on sliding block by this special adapter sleeve valve rod and and motor
Axle is connected to motor shaft so as to which relative thirty years of age contiguous block for following motor rotational motion to set can perfectly connect in 90 ° of directions
It is connected on sliding block, and part interference will not occurs.
A kind of above-mentioned EGR valve can be further arranged to：The sliding block is provided with motor shaft connecting portion, the motor axis connection
Portion side is provided with arc link slot, be provided with the arc link slot can opposing arcuate link slot axial slip ball axle
Hold, the contiguous block is connected to sliding block by ball bearing and can the sliding of opposing arcuate link slot.
Using above-mentioned technical proposal, the motor shaft connecting portion set on sliding block and motor axis connection, in motor axis connection
Portion side set arc link slot in be connected with can opposing arcuate link slot radial motion bearing, by valve rod by being connected to
On bearing and can arcuately link slot radial motion, not only cause the valve rod life-span it is longer, and cause valve entirety flow it is bigger.
A kind of above-mentioned EGR valve can be further arranged to：The motor shaft is provided with turn close to one end of sliding block, described
Motor assembly is connected with aluminium seat on turn same plane, and the aluminium seat is provided with valve rod connecting cavity, and the valve rod is arranged in aluminium
In the valve rod connecting cavity of seat.
Using above-mentioned technical proposal, the aluminium seat of setting can not only play a part of protecting valve component and profile is more beautiful
See.
A kind of above-mentioned EGR valve can be further arranged to：The plug-assembly is provided with chip with motor assembly junction.
Beneficial effects of the present invention are：Use torque motor, the size of reduction valve body cumulative volume, built-in active control chip
Reduce the requirement to ECU, overall structure is simple, occupies little space, and the response time is fast.
The present invention is described in further detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the embodiment of the present invention.
Fig. 2 is the exploded perspective view of the embodiment of the present invention.
Fig. 3 is the connecting jacket structure schematic diagram of the embodiment of the present invention.
Fig. 4 is the slide block structure schematic diagram of the embodiment of the present invention.
Fig. 5 is the valve rod and sliding block attachment structure schematic diagram of the embodiment of the present invention.
Embodiment
Referring to shown in Fig. 1-Fig. 5：A kind of EGR valve, including motor assembly 1, motor assembly 1 include motor shaft, motor shaft
One end is connected with the other end of plug-assembly 2 and is connected with valve component 3, and valve component 3 includes valve rod 31, the connection of the one end of valve rod 31
There is valve plate 32, the other end of the relative connection valve plate 32 of valve rod 31 is plugged in sliding block 34 by adapter sleeve 33, and valve rod 31 passes through connection
Set 33 can the axial wobble of opposing slider 34, the relative other end for being connected to adapter sleeve 33 of sliding block 34 and motor axis connection, sliding block 34
Intersect with motor shaft in 90 °, adapter sleeve 33 includes annular portion 331, and valve rod 31 is plugged in annular portion 331, and annular portion 331 is remote
One end of valve rod 31, which stretches out, is provided with the relative contiguous block 332 set up, and has between contiguous block 332 identical with the thickness of sliding block 34
Gap 333, adapter sleeve 33 is connected by contiguous block 332 with sliding block 34, and sliding block 34 is provided with motor shaft connecting portion 341, motor shaft
The side of connecting portion 341 is provided with arc link slot 342, and being provided with arc link slot 342 can the axial cunning of opposing arcuate link slot 342
The ball bearing 343 of shifting, contiguous block 332 by ball bearing 343 be connected to sliding block 34 and can opposing arcuate link slot 342 slide
Move, motor shaft 11 is provided with turn 12 close to one end of sliding block 34, and motor assembly 1 is connected with aluminium on the same plane of turn 12
Seat 4, aluminium seat 4 is provided with valve rod connecting cavity 41, and valve rod 31 is arranged in the valve rod connecting cavity 41 of aluminium seat 4, and plug-assembly 2 and motor are total
Chip 21 is provided with into 1 junction.
Claims (5)
1. a kind of EGR valve, including motor assembly, the motor assembly includes motor shaft, it is characterised in that：The motor shaft one
End is connected with the plug-assembly other end and is connected with valve component, and the valve component includes valve rod, valve rod one end connection
There is valve plate, the other end of the relative connection valve plate of the valve rod is plugged in sliding block by adapter sleeve, and the valve rod can by adapter sleeve
Opposing slider axial wobble, the relative other end for being connected to adapter sleeve of the sliding block and motor axis connection, the sliding block and motor
Intersecting axle is in 90 °.
A kind of 2. EGR valve according to claim 1, it is characterised in that：The adapter sleeve includes annular portion, the valve rod
Annular portion is plugged in, the one end of the annular portion away from valve rod stretches out provided with the relative contiguous block set up, the contiguous block
Between have be connected with sliding block thickness identical gap, the adapter sleeve by contiguous block with sliding block.
A kind of 3. EGR valve according to claim 2, it is characterised in that：The sliding block is provided with motor shaft connecting portion, the electricity
Arbor connecting portion side is provided with arc link slot, and being provided with the arc link slot can opposing arcuate link slot axial slip
Ball bearing, the contiguous block are connected to sliding block by ball bearing and can the slidings of opposing arcuate link slot.
A kind of 4. EGR valve according to claim 3, it is characterised in that：The motor shaft is provided with bullet close to one end of sliding block
Spring coil, the motor assembly are connected with aluminium seat on turn same plane, and the aluminium seat is provided with valve rod connecting cavity, the valve rod
It is arranged in the valve rod connecting cavity of aluminium seat.
A kind of 5. EGR valve according to claim 1, it is characterised in that：The plug-assembly is set with motor assembly junction
There is chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791908.2A CN107740736A (en) | 2017-09-05 | 2017-09-05 | A kind of EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791908.2A CN107740736A (en) | 2017-09-05 | 2017-09-05 | A kind of EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107740736A true CN107740736A (en) | 2018-02-27 |
Family
ID=61235394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791908.2A Pending CN107740736A (en) | 2017-09-05 | 2017-09-05 | A kind of EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740736A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747485U (en) * | 2010-08-17 | 2011-02-16 | 无锡隆盛科技有限公司 | Electric EGR valve |
| CN202250475U (en) * | 2011-08-19 | 2012-05-30 | 温州市品一车辆配件有限公司 | Automobile engine EGR valve |
| CN102661216A (en) * | 2012-06-04 | 2012-09-12 | 南岳电控(衡阳)工业技术有限公司 | Valve used for diesel engine exhaust gas recirculation system |
| CN203584619U (en) * | 2013-11-12 | 2014-05-07 | 联创汽车电子有限公司 | Exhaust gas recirculation valve |
| CN203584618U (en) * | 2013-09-27 | 2014-05-07 | 东风康明斯发动机有限公司 | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control |
| CN207485564U (en) * | 2017-09-05 | 2018-06-12 | 温州市温纳汽车配件有限公司 | A kind of EGR valve |
-
2017
- 2017-09-05 CN CN201710791908.2A patent/CN107740736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747485U (en) * | 2010-08-17 | 2011-02-16 | 无锡隆盛科技有限公司 | Electric EGR valve |
| CN202250475U (en) * | 2011-08-19 | 2012-05-30 | 温州市品一车辆配件有限公司 | Automobile engine EGR valve |
| CN102661216A (en) * | 2012-06-04 | 2012-09-12 | 南岳电控(衡阳)工业技术有限公司 | Valve used for diesel engine exhaust gas recirculation system |
| CN203584618U (en) * | 2013-09-27 | 2014-05-07 | 东风康明斯发动机有限公司 | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control |
| CN203584619U (en) * | 2013-11-12 | 2014-05-07 | 联创汽车电子有限公司 | Exhaust gas recirculation valve |
| CN207485564U (en) * | 2017-09-05 | 2018-06-12 | 温州市温纳汽车配件有限公司 | A kind of EGR valve |
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