CN106246418B - A kind of control valve of automobile exhaust gas recirculating system - Google Patents
A kind of control valve of automobile exhaust gas recirculating system Download PDFInfo
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- CN106246418B CN106246418B CN201610729576.0A CN201610729576A CN106246418B CN 106246418 B CN106246418 B CN 106246418B CN 201610729576 A CN201610729576 A CN 201610729576A CN 106246418 B CN106246418 B CN 106246418B
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Abstract
The present invention provides a kind of control valves of automobile exhaust gas recirculating system, comprising: shell；Conduction mechanism is detachably connected positioned at the side of shell, and by gasket and shell；Trigger mechanism is detachably connected positioned at the other side of shell, and with shell；Transmission mechanism is nested in the inside of shell, and one end of transmission mechanism is connected with conduction mechanism, and the other end of transmission mechanism is connected with trigger mechanism.The control valve of automobile exhaust gas recirculating system provided by the invention, magnetic field is generated by the coil being wound on reel, so that armature is under the influence of a magnetic field, band ovable valve stem is mobile, additionally by the offset deviation between the magnet and Hall chip being embedded on sliding block, the mobile position of valve rod is controlled, thus the channel aperture between the first circular hole of control and third circular hole, and then rationally control tail gas NOx emission.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of control valve, and especially a kind of automobile exhaust gas recirculating system is used
Control valve.
Background technique
With being continuously increased for car ownership, vehicle emission pollution is also risen year by year；Exhaust gas recycles abbreviation egr system
(Exhaust Gas Recirculation) is a kind of current effective measures for reducing NOx emission, it is to draw a part of exhaust gas
Enter to enter after air inlet pipe is mixed with fresh air and burns to realize exhaust gas recycle theory in cylinder.Research shows that egr system
NOx emission is reduced by reducing the oxygen concentration in ignition temperature and air inlet, a large amount of indifferent gas contained in the exhaust gas of recycling
Body has reacted inhibition to the combustion chemistry of gaseous mixture, slows down so that delay period extends combustion process and inhibits burning warm
Degree, simultaneously because EGR gas reduces the oxygen concentration in the gas that spouts instead of a part of fresh air to reduce NOx emission.
The present invention is the core component EGR valve of egr system, and ECU system is passed by the revolving speed, throttle, temperature of system feedback
The relevant parameters such as sensor carry out closed-loop control to EGR valve, intelligence is adjusted in conjunction with the feedback voltage signal that EGR valve valve body exports
The aperture of valve body is finally reached the purpose of control tail gas NOx emission.
In conclusion tail gas NOx can rationally be controlled by needing to design one kind to solve the deficiency on existing control valve arrangement
The control valve of the automobile exhaust gas recirculating system of discharge.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, tail gas can rationally be controlled by proposing one kind
The control valve of the automobile exhaust gas recirculating system of NOx emission.
Object of the invention can be realized by the following technical scheme: a kind of control of automobile exhaust gas recirculating system
Valve, comprising:
Shell；
Conduction mechanism is detachably connected positioned at the side of the shell, and by gasket and the shell；
Trigger mechanism is detachably connected positioned at the other side of the shell, and with the shell；
Transmission mechanism is nested in the inside of the shell, and one end of the transmission mechanism is connected with the conduction mechanism,
The other end of the transmission mechanism is connected with the trigger mechanism.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the shell is in revolving body cylinder, and one
Hold hollow, other end sealing, comprising:
Several connecting holes, along the axis direction circular array setting of the sealed end of the shell；
Several adjustment holes, along the axis direction circular array setting of the sealed end of the shell；
Wherein, an adjustment hole is set between adjacent two connecting holes.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the conduction mechanism includes:
Block is connected, the thickness direction along the conducting block offers the first circular hole；
Link block is integrally formed positioned at one end of the conducting block, and with the lateral wall of the conducting block；
Wherein, be provided with the second circular hole on the conducting block of described link block the same end, and second circular hole with
First circular hole is interconnected；Third circular hole, and the third circular hole and institute are offered along the thickness direction of the link block
The second circular hole is stated to be interconnected.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the axis direction of first circular hole and institute
The axis direction for stating the second circular hole is mutually perpendicular to；The axis direction phase of the axis direction of first circular hole and the third circular hole
It is mutually parallel.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the trigger mechanism includes:
Triggering cover, comprising: in rotational-like cover and with the integrally formed protrusion of lateral wall of the cover, and it is described
The opening direction of cover and the opening direction of the protrusion are mutually perpendicular to；
Several plug insertion pins, and one end of the plug insertion pin is connected to the open end of the cover, the plug is inserted
The other end of needle is connected to the open end of the protrusion；
Capping, and it is nested in the open end of the cover；
Ring type seal is connected between the open end of the cover and the capping.
Axis direction in a kind of control valve of above-mentioned automobile exhaust gas recirculating system, along the cover open end
Circular array is provided with several gap, and the position of the gap is corresponding with the position of card slot in the capping.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the transmission mechanism includes:
Detection components are connected with the trigger mechanism；
Valve rod, one end are connected with the detection components, and the other end penetrates in second circular hole；
First baffle ring is nested on the valve rod for protruding into second circular hole one end；
Second baffle ring is nested on the valve rod, and close first baffle ring, and the opening phase with second circular hole
Clamping；
First spring is nested on the valve rod, and one end of first spring offsets with second baffle ring, described
The other end of first spring offsets with the detection components；
Armature is nested on the valve rod；
Valve pocket is nested on the armature；
Reel is nested on the valve pocket, and the edge of the side of the reel is provided with slot, with the plug
Contact pin matches；
First end cover, and be nested on the reel, and offer a notch along the outer of the first end cover；
Second end cover is nested on the valve rod, and the frustum wedge of one end of the second end cover and described valve pocket one end
Shape cooperation.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the transmission mechanism further include:
Wave shape sealing ring is nested on the valve rod, and between second baffle ring and the reel；
Two third baffle rings, and the third baffle ring is nested on the valve rod, and is nested with the armature.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the detection components include:
Sliding block, one end is long round bar, and is mutually touched with the valve rod, and the other end of the sliding block is polygon column block, and
The polygon column block is connected with triggering cover；
Block plate is nested on the long round bar, and the side of the block plate offsets with first spring；
Second spring is nested on the long round bar, and the other side phase of one end of the second spring and the block plate
It supports；
Hall chip is installed on the plug insertion pin, and is located at the lower section of the sliding block；
Magnet on the polygon column block, and is located at the top of the Hall chip.
In a kind of control valve of above-mentioned automobile exhaust gas recirculating system, the axis direction along the first end cover is in
Annular array is provided with several location holes, matches with the cylinder on the reel.
Compared with prior art, the control valve of automobile exhaust gas recirculating system provided by the invention, by be wound in around
Coil in spool generates magnetic field, so that armature is under the influence of a magnetic field, band ovable valve stem is mobile, additionally by what is be embedded on sliding block
Offset deviation between magnet and Hall chip, the mobile position of control valve rod, thus the first circular hole of control and third circular hole it
Between channel aperture, and then rationally control tail gas NOx emission.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the embodiment of the control valve of automobile exhaust gas recirculating system of the present invention.
Fig. 2 is a kind of scattered structural schematic diagram of the embodiment of the control valve of automobile exhaust gas recirculating system of the present invention.
When Fig. 3 in a preferred embodiment of the present invention shell structural schematic diagram.
Fig. 4 is the structural schematic diagram of conduction mechanism in a preferred embodiment of the present invention.
Fig. 5 is the structural schematic diagram at another visual angle of conduction mechanism shown in Fig. 4.
Fig. 6 is the scattered structural schematic diagram of trigger mechanism in a preferred embodiment of the present invention.
Fig. 7 is the scattered structural schematic diagram of transmission mechanism in a preferred embodiment of the present invention.
Fig. 8 is the partial enlarged view of part A in Fig. 7.
In figure, 100, shell；110, connecting hole；120, adjustment hole；130, through slot；140, annular groove；200, machine is connected
Structure；210, block is connected；211, the first circular hole；212, the second circular hole；213, threaded hole；220, link block；221, third circular hole；
222, fixation hole；300, trigger mechanism；310, triggering cover；311, cover；311a, gap；312, raised；320, plug insertion pin；
330, it covers；331, card slot；340, ring type seal；400, transmission mechanism；410, detection components；411, sliding block；412, block plate；
413, second spring；414, Hall chip；415, magnet；420, valve rod；430, the first baffle ring；440, the second baffle ring；450,
One spring；460, armature；470, valve pocket；480, reel；481, slot；482, cylinder；490, first end cover；491, notch；
492, location hole；490A, second end cover；490B, wave shape sealing ring；490C, third baffle ring.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As depicted in figs. 1 and 2, the present invention provides a kind of control valves of automobile exhaust gas recirculating system, comprising: shell
100；Conduction mechanism 200 is detachably connected positioned at the side of shell 100, and by gasket with shell 100；Trigger mechanism 300,
It is detachably connected positioned at the other side of shell 100, and with shell 100；Transmission mechanism 400 is nested in the interior of shell 100, and passes
One end of motivation structure 400 is connected with conduction mechanism 200, and the other end of transmission mechanism 400 is connected with trigger mechanism 300, works as triggering
Mechanism 300 is powered, so that the movement of transmission mechanism 400, to realize opening and closing for conduction mechanism 200.
Preferably, as shown in Figures 2 and 3, shell 100 is in revolving body cylinder, and one end is hollow, other end sealing, wherein
The axis direction circular array of sealed end is provided with several connecting holes 110 and several adjustment holes 120, and adjacent two connect
It connects and an adjustment hole 120 is set between hole 110, wherein interconnecting piece of the connecting hole 110 as shell 100 and conduction mechanism 200；It adjusts
Positioning region when knothole 120 is connected as shell 100 with conduction mechanism 200.
Preferably, as shown in Figures 2 and 3, the axis direction circular array of shell 100 is provided with several through slots
130, and through slot 130 is located on 100 side wall of shell of sealed end, to observe the operating condition of transmission mechanism 400.
Preferably, as shown in Figures 2 and 3, the axis direction along shell 100 is provided with an annular groove 140, to snapping
Trigger mechanism 300.
Preferably, as shown in Figure 4 and Figure 5, conduction mechanism 200 includes a conducting block 210 and a link block 220, and is connected
Block 220 is located at one end of conducting block 210, and is integrally formed with the lateral wall of conducting block 210；Wherein, along the thickness of conducting block 210
Direction offers one first circular hole 211；It is provided with one second circular hole 212 on the conducting block 210 of 220 the same end of link block, and
Second circular hole 212 and the first circular hole 211 are interconnected；Third circular hole 221, and are offered along the thickness direction of link block 220
Three circular holes 221 and the second circular hole 212 are interconnected.
Preferably, as shown in Figure 4 and Figure 5, the axis direction phase of the axis direction of the first circular hole 211 and the second circular hole 212
It is mutually vertical；The axis direction of the axis direction and third circular hole 221 of first circular hole 211 is parallel to each other.
Preferably, as shown in Figure 2 and Figure 4, the second circular hole 212 is multisection type stepped hole；To cooperate transmission mechanism 400.
Preferably, as shown in Figure 3 and Figure 4, several threaded holes are offered in array along the axis direction of the second circular hole 212
213, and the position of threaded hole 213 is corresponding with the position of connecting hole 110 on shell 100, as conduction mechanism 200 and shell
Interconnecting piece between 100.
Preferably, as shown in Figure 4 and Figure 5, the both ends of link block 220 are each provided with a fixation hole 222, and each is fixed
Hole 222 is opened up along the thickness direction of link block 220, the fixed part as control valve.
Preferably, as shown in fig. 6, trigger mechanism 300 includes: triggering cover 310, including being in rotational-like 311 He of cover
With the lateral wall of cover 311 integrally formed raised 312, and the opening direction of cover 311 and protrusion 312 opening direction it is mutual
Vertically；Several plug insertion pins 320, it is L-shaped, and one end of plug insertion pin 320 is connected to the open end of cover 311, plug is inserted
The other end of needle 320 is connected to the open end of protrusion 312；Capping 330 is in rotational-like, and is nested in the opening of cover 311
End.
Preferably, as shown in fig. 6, the open end of cover 311 and the junction of capping 330 are provided with a ring type seal
340, improve the leakproofness between cover 311 and capping 330.
Preferably, as shown in fig. 6, the axis direction circular array along 311 open end of cover is provided with several gap
311a, and the position of gap 311a is corresponding with the position of card slot 331 in capping 330, convenient between capping 330 and cover 311
Connection.
Preferably, as shown in Figure 7 and Figure 8, transmission mechanism 400 includes: detection components 410, is connected with trigger mechanism 300；
Valve rod 420, one end are connected with detection components 410, and the other end penetrates in the second circular hole 212；First baffle ring 430, is nested in and protrudes into
On the valve rod 420 of 212 one end of the second circular hole, realized between the first circular hole 211 and third circular hole 221 by the first baffle ring 430
The size in space is connected；Second baffle ring 440, is nested on valve rod 420, and close to the first baffle ring 430, and with the second circular hole 212
Opening be mutually clamped；First spring 450, is nested on valve rod 420, and one end of the first spring 450 and 440 phase of the second baffle ring
It supports, the other end and the detection components 410 of the first spring 450 offset；Armature 460 is nested on valve rod 420；Valve pocket 470, it is nested
In on armature 460；Reel 480 is nested on valve pocket 470, and the edge of the side of reel 480 is provided with slot 481, with
Plug insertion pin 320 matches；First end cover 490 is in rotational-like, and is nested on reel 480, and along first end cover 490
Outer offer a notch 491, the adapted space as slot 481；Second end cover 490A is nested on valve rod 420, and the
One end of two end cap 490A and the frustum wedge-like engagement of 470 one end of valve pocket, thus position of the fixed valve pocket 470 on armature 460.
When control valve is powered, the coil being wound on reel 480 is powered, and generates magnetic field, work of the armature 460 in magnetic field
It moves down under, to be moved down with ovable valve stem 420, and then is connected logical between the first circular hole 211 and third circular hole 221
Road；Conversely, magnetic field disappears when control valve power-off, valve rod 420 moves back under the action of the first spring 450, to block first
Channel between circular hole 211 and third circular hole 221.
Preferably, as shown in Figure 7 and Figure 8, transmission mechanism 400 further includes a waveform sealing being nested on valve rod 420
490B is enclosed, and between the second baffle ring 440 and reel 480, to improve the leakproofness of transmission mechanism 400.
Preferably, as shown in Figure 7 and Figure 8, transmission mechanism further includes two third baffle ring 490C, and third baffle ring 490C is embedding
It is placed on valve rod 420, and is nested with armature 460, so that armature 460 when moving on valve rod 420, is kept and valve rod 420
Axis direction is parallel.
Preferably, as shown in Figure 7 and Figure 8, detection components 410 include: sliding block 411, and one end is long round bar, and and valve rod
420 phases are touched, and the other end of sliding block 411 is polygon column block, and polygon column block is connected with triggering cover 310；Block plate 412, it is embedding
It is placed on long round bar, and the side of block plate 412 offsets with the first spring 450；Second spring 413 is nested on long round bar, and the
One end of two springs 413 and the other side of block plate 412 offset；Hall chip 414 is installed on plug insertion pin 320, and is located at and is slided
The lower section of block 411；Magnet 415 on polygon column block, and is located at the top of Hall chip 414.
When magnet 415 and Hall chip 414 are subjected to displacement deviation, feedback voltage is exported by Hall chip 414, thus
The mobile displacement of valve rod 420 is detected, and then controls the channel aperture between the first circular hole 211 and third circular hole 221.
Preferably, as shown in Figure 7 and Figure 8, the axis direction circular array of first end cover 490 several are provided with to determine
Position hole 492, matches, positioning region when being connected as reel 480 with end cap 460 with the cylinder 482 on reel 480.
The working principle of the control valve of automobile exhaust gas recirculating system provided by the invention: when control valve obtains it is electric when, twine
The coil being around on reel 480 is powered, and magnetic field is generated, so that armature 460 moves down under the influence of a magnetic field, to drive
Valve rod 420 moves down, and then the channel between the first circular hole 211 and third circular hole 221 is connected, while passing through 420 band of valve rod
Movable slider 411 moves down, so that deviation is subjected to displacement between magnet 415 and Hall chip 414, to pass through Hall chip
Displacement signal is transformed into voltage signal output by 414, controls the displacement of valve rod 420, and then control the first circular hole 211 and third
Channel aperture between circular hole 221；When control valve power-off, magnetic field disappears, and valve rod 420 returns under the action of the first spring 450
It moves, so that sliding block 411 be pushed to move back, changes the offset deviation between magnet 415 and Hall chip 414, and then control valve rod 420
The distance of return.
The control valve of automobile exhaust gas recirculating system provided by the invention passes through the coil being wound on reel 480
Magnetic field is generated, so that armature 460 is under the influence of a magnetic field, band ovable valve stem 420 is mobile, additionally by the magnetic being embedded on sliding block 411
Offset deviation between iron 415 and Hall chip 414, the mobile position of control valve rod 420, thus control 211 He of the first circular hole
Channel aperture between third circular hole 221, and then rationally control tail gas NOx emission.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of control valve of automobile exhaust gas recirculating system characterized by comprising
Shell；
Conduction mechanism is detachably connected positioned at the side of the shell, and by gasket and the shell；
Trigger mechanism is detachably connected positioned at the other side of the shell, and with the shell；
Transmission mechanism is nested in the inside of the shell, and one end of the transmission mechanism is connected with the conduction mechanism, described
The other end of transmission mechanism is connected with the trigger mechanism；
The conduction mechanism, comprising:
Block is connected, the thickness direction along the conducting block offers the first circular hole；
Link block is integrally formed positioned at one end of the conducting block, and with the lateral wall of the conducting block；
Wherein, be provided with the second circular hole on the conducting block of described link block the same end, and second circular hole with it is described
First circular hole is interconnected；Third circular hole is offered along the thickness direction of the link block, and the third circular hole and described the
Two circular holes are interconnected；
The trigger mechanism includes:
Triggering cover, comprising: in rotational-like cover and with the integrally formed protrusion of lateral wall of the cover, and the cover
Opening direction and the opening direction of the protrusion be mutually perpendicular to；
Several plug insertion pins, and one end of the plug insertion pin is connected to the open end of the cover, the plug insertion pin
The other end is connected to the open end of the protrusion；
Capping, and it is nested in the open end of the cover；
Ring type seal is connected between the open end of the cover and the capping；
The transmission mechanism includes:
Detection components are connected with the trigger mechanism；
Valve rod, one end are connected with the detection components, and the other end penetrates in second circular hole；
First baffle ring is nested on the valve rod for protruding into second circular hole one end；
Second baffle ring is nested on the valve rod, and close to first baffle ring, and is mutually blocked with the opening of second circular hole
It connects；
First spring is nested on the valve rod, and one end of first spring offsets with second baffle ring, and described first
The other end of spring offsets with the detection components；
Armature is nested on the valve rod；
Valve pocket is nested on the armature；
Reel is nested on the valve pocket, and the edge of the side of the reel is provided with slot, with the plug insertion pin
It matches；
First end cover is nested on the reel, and offers a notch along the outer of the first end cover；
Second end cover is nested on the valve rod, and one end of the second end cover and the frustum wedge shape of described valve pocket one end are matched
It closes.
2. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that the shell
Body, one end is hollow, other end sealing, comprising:
Several connecting holes, along the axis direction circular array setting of the sealed end of the shell；
Several adjustment holes, along the axis direction circular array setting of the sealed end of the shell；
Wherein, an adjustment hole is set between adjacent two connecting holes.
3. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that described first
The axis direction of circular hole and the axis direction of second circular hole are mutually perpendicular to；The axis direction of first circular hole and described the
The axis direction of three circular holes is parallel to each other.
4. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that along the cover
The axis direction circular array of body open end is provided with several gap, and card slot in the position of the gap and the capping
Position it is corresponding.
5. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that the transmission
Mechanism further include:
Wave shape sealing ring is nested on the valve rod, and between second baffle ring and the reel；
Two third baffle rings, and the third baffle ring is nested on the valve rod, and is nested with the armature.
6. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that the detection
Component includes:
Sliding block, one end is long round bar, and is mutually touched with the valve rod, and the other end of the sliding block is polygon column block, and described
Polygon column block is connected with triggering cover；
Block plate is nested on the long round bar, and the side of the block plate offsets with first spring；
Second spring is nested on the long round bar, and one end of the second spring and the other side of the block plate offset；
Hall chip is installed on the plug insertion pin, and is located at the lower section of the sliding block；
Magnet on the polygon column block, and is located at the top of the Hall chip.
7. a kind of control valve of automobile exhaust gas recirculating system according to claim 1, which is characterized in that along described
The axis direction circular array of one end cap is provided with several location holes, matches with the cylinder on the reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729576.0A CN106246418B (en) | 2016-08-25 | 2016-08-25 | A kind of control valve of automobile exhaust gas recirculating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729576.0A CN106246418B (en) | 2016-08-25 | 2016-08-25 | A kind of control valve of automobile exhaust gas recirculating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246418A CN106246418A (en) | 2016-12-21 |
| CN106246418B true CN106246418B (en) | 2019-02-22 |
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ID=57596236
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729576.0A Active CN106246418B (en) | 2016-08-25 | 2016-08-25 | A kind of control valve of automobile exhaust gas recirculating system |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299130B1 (en) * | 1999-10-14 | 2001-10-09 | Siemens Canada Limited | EEGR valve with flexible bearing |
| US6439214B1 (en) * | 2001-08-14 | 2002-08-27 | Siemens Automotive Inc. | Linear solenoid automotive emission control valve |
| US6715475B2 (en) * | 2001-10-26 | 2004-04-06 | Siemens Vdo Automotive, Incorporated | Exhaust gas recirculation valve |
| CN202250477U (en) * | 2011-10-19 | 2012-05-30 | 黄山市汽车电器股份公司 | EGR linear valve of car |
| CN202867029U (en) * | 2012-10-24 | 2013-04-10 | 昌辉汽车电器（黄山）股份公司 | Exhaust gas recirculation (EGR) valve |
| KR20140146915A (en) * | 2013-06-18 | 2014-12-29 | 한국델파이주식회사 | Exhaust gas recirculation Valve |
| CN203347945U (en) * | 2013-07-23 | 2013-12-18 | 无锡隆盛科技股份有限公司 | Hall-type linear power-driven EGR (exhaust gas recirculation) valve |
| CN204299725U (en) * | 2014-12-09 | 2015-04-29 | 淄博泰展机电有限公司 | A kind of automobile EGR valve |
-
2016
- 2016-08-25 CN CN201610729576.0A patent/CN106246418B/en active Active
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| CN106246418A (en) | 2016-12-21 |
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