CN100487236C - Exhaust gas recirculation valve - Google Patents
Exhaust gas recirculation valve Download PDFInfo
- Publication number
- CN100487236C CN100487236C CNB200410095436XA CN200410095436A CN100487236C CN 100487236 C CN100487236 C CN 100487236C CN B200410095436X A CNB200410095436X A CN B200410095436XA CN 200410095436 A CN200410095436 A CN 200410095436A CN 100487236 C CN100487236 C CN 100487236C
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- CN
- China
- Prior art keywords
- valve
- cam
- exhaust gas
- gas recirculation
- rotary actuator
- 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.)
- Expired - Fee Related
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- 230000033001 locomotion Effects 0.000 abstract description 23
- 230000005540 biological transmission Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
-
- 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
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Exhaust gas recirculation valve (10) comprises a rotary drive (12), and a valve element (14) that can be rotated between an open and a closed position. A cam element (24) with a cam curve (26) transfers the rotational movement from the rotary drive to the valve element.
Description
Technical field
A kind of exhaust gas recirculation valve of the present invention.
Automotive engineering with particularly with improve the engine exhaust value and reduce the relevant field of fuel consumption, knownly utilize exhaust gas recirculation to carry fresh air to internal-combustion engine.
Background technique
As everyone knows, can open and close exhaust gas recirculation valve in a different mode of operation.Aspect the motion of valve part, just valve element and its valve seat are separated and are the reversing motion aspect of throttle down, known principle is that the valve part that for example valve disc is such separates by translational motion and its valve seat.Relevant therewith EP 0 856 657 B1 disclose a kind of cam, but it drive by a transmission device rotation and mesh like this with the valve tappet of translational motion, make valve tappet translational motion and for example when opening, promoting when the rotatablely moving of cam from its valve seat.
EP 1 245 820 A1 disclose a kind of above-mentioned exhaust gas recirculation valve.In this regard, rotatablely moving is delivered on the such valve part of for example hinged valve disc by suitable transmission device, and valve disc is between open position and closed position and the counterrotating campaign.
Summary of the invention
The objective of the invention is to, a kind of exhaust gas recirculation valve with simple and compact structure is provided.
For this reason, the present invention proposes a kind of exhaust gas recirculation valve, it have a rotary actuator and one can be between open position and closed position the valve part of rotary manipulation, wherein, cam part with cam curve is set, this cam part is delivered to rotatablely moving of rotary actuator on the valve part, and the cam curve of cam part covers 70 ° to 360 ° angle.
Therefore, the valve part that has a rotary actuator and a rotary manipulation between open position and closed position according to exhaust gas recirculation valve of the present invention.In other words, these parts are not the translational motions that is converted to valve part with rotatablely moving.Specifically, rotatablely moving of rotary actuator is delivered on the valve part by rights like this, makes the same rotation of these parts and moves between open position and closed position by rotatablely moving.What need replenish this is that this valve part can carry out translational motion.For example this translational motion can produce the opening and closing effect of valve self, and the effect that rotatablely moves that valve part carries out between open position and closed position equally is, these parts are for example rotated to take out stains on its valve seat.For the present invention, importantly which kind of mode to produce the formed rotation of valve part with.Thus, " rotary actuator " of employed each parts of notion is interpreted as, and rotation is delivered on the valve part by means of the following parts that also will introduce in detail from these parts.In this case, rotary actuator can be a turning motor or by the gear of turning motor transmission.But it is contemplated that equally real transmission device at first produces a kind of translational motion, by suitable conversion equipment this movement conversion is become the rotation of parts then, these parts are rotary actuator in this manual.It should be noted that in context this valve part can be the identical parts of the sort of and above-mentioned EP 1 245 820.Particularly the disclosure of the document is being considered the theme that belongs to the application under the formation situation of valve part.
According to the present invention,, have alleged the rotatablely moving of transmission for the first time and have the cam part of cam curve for rotatablely moving of rotary actuator is delivered on the rotatablely moving of valve part.In this case, cam part both can be a transmission part, also can be driven member.Under first kind of situation, cam part for example utilizes gear to do to be connected with rotary actuator middle the connection with driving mechanism when needing by rights.Under second kind of situation, cam part is driven by rotary actuator by rights and is connected with valve part, thereby the turning effort that cam part produces is in the rotation of valve part.In addition, have parts with suitable shape, the such acting in conjunction of the cam curve of these parts and cam part makes it can produce described rotation.As following also to introduce in detail, a roller that for example can be fixed on the lever rolls on cam curve.But also it is contemplated that any other structure with the coefficient parts of cam curve.
As following also to introduce in detail, can reach a kind of structure of very compact type by described cam part.Particularly transmission device can be provided with like this with valve part and particularly relative its spin axis, and therefore this transmission device is almost centered, thereby needs less structure space.In addition, the opening and closing mechanism that can be preferably valve by cam part realizes diversified feature.For example when beginning, opening procedure can apply the power when being higher than opening procedure continuation variation.In addition, by using other higher transmission conversion equipments of cam part avoidable expenses, for example as leverage and gear.Generally speaking, produce a kind of being improved thus, the exhaust gas recirculation valve of simple and compact structure.
In particular for a kind of mode of execution regulation, this mode of execution needs few especially structure space, and wherein, at least two spin axiss of rotary actuator, cam part and valve part are parallel to each other.All preferred alleged three spin axiss are parallel to each other.The particularly suitable setting of the cam part by transferring rotational motion, the spin axis of rotary actuator can also be as far as possible center with the spin axis of valve part.In alleged any scheme, structure space only needs the spin axis of elongate valve parts, and the zone of side can keep to a great extent therewith.
Such as mentioned, have suitable cam curve by making cam part, so that when opening transmission power, can reach desired performance.
For this reason, the also corresponding therewith angle of passing through when opening of cam curve covering can be adjusted by rights.Angle generation favourable outcome in about here 70 ° of-360 ° of scopes during test.The cam part at 90 ° of driven angles particularly, just the valve part half-twist both can have less than the angle that also can have greater than 90 °.Thus, the effect for also introducing in detail below obtaining promptly can strengthen velocity ratio and also can reduce velocity ratio.
For the advantage of reliably opening exhaust gas recirculation valve and providing is, cam curve smooth variation during from the closed condition beginning of valve.In this case, cam part produces valve part with the angle rotation less than the cam part angle of rotation with the rotation of determining angle.In other words, the velocity ratio below producing when the beginning of opening procedure at least promptly utilize bigger the rotatablely moving of rotary actuator to produce valve part small rotation by contrast, and because mechanical rule is transmitted higher power in this case.This power is effectively utilized when opening valve part, so that unclamp issuable bonding.In addition, applying higher power also helps opening valve part against the air pressure that exists.In addition, particularly be issued to very high adjustment quality in the very little situation of open angle.This point reaches thus, and promptly " actuator " embodies a kind of bigger angular region, and valve part rotates with small angle range, and therefore can accurately adjust the angle of valve part in the scope of " actuator " rotation.
Cam part can design cam curve in any way in principle.For example, in a narrow sense can be the cam that constitutes cam curve on a kind of its circumference.But considering compact structure and simultaneously under the reliable in function situation special advantage be, for the cam part of disc cam mode shows the cam curve that the inside has the gap mode.This gap can be used as the groove that has the bottom and constitutes, and perhaps also can be used as the coherent formation of opening or perforate.
In addition, considering under the situation of simple structure preferred cam parts and a rotatable roller acting in conjunction that is installed on the lever.In this case, how many rollers can roll on the cam curve and transmit motion on the lever.Can between rotary actuator and valve part, continue transferring rotational motion thus.
Description of drawings
Mode of execution by accompanying drawing elaborates to the present invention for example below.Wherein:
Fig. 1 illustrates the perspective exploded view according to exhaust gas recirculation valve first mode of execution of the present invention;
Fig. 2 a-d illustrates the diverse location of Fig. 1 exhaust gas recirculation valve transferring rotational motion parts;
Fig. 3 illustrates the perspective exploded view according to exhaust gas recirculation valve second mode of execution of the present invention;
Fig. 4 illustrates the top view of Fig. 3 exhaust gas recirculation valve transferring rotational motion parts.
Embodiment
Exhaust gas recirculation valve 10 shown in Fig. 1 at first has a rotary actuator 12, for example can be torque motor or revolution motor.Speak of rotatablely moving of rotary actuator 12 be transferred to valve part before, should at first introduce valve part.
This valve part is a kind of safety check, basically can be according to top alleged claimant's the described formation of application.For purpose of the present invention, the important valve disc 14 that only is rotatablely moves between open position and closed position around the axis 16 that is in the valve disc outside.In other words, from the closed condition shown in Fig. 1, the outlying observation person is rotated around axis 16 in the illustrated case, and this axis promotes valve disc 14 from its valve seat, meanwhile makes it through-flow and can utilize in the edge area of pipeline of valve disc 14 sealings and move to a certain extent.
For rotatablely moving of rotary actuator 12 is delivered to valve part 14, on the axis 18 of rotary actuator 12, fixedly mount a lever 20 on the one hand.Shown in situation under, the rotatable roller 22 that is provided with on the free end of lever 20.This roller 22 cam curve 26 actings in conjunction that constitute with penetrating in the cam part 24.Cam part 24 itself is fixedlyed connected with the axis 16 of valve part 14.
In an illustrated embodiment, roller 22 is a driver part when transferring rotational motion, and cam part 24 then is driven.From the state shown in Fig. 1, lever 20 rotates towards the observer together with superincumbent roller 22 is installed, and roller 22 is so in this regard and cam curve 26 actings in conjunction, makes cam part 24 outlying observation persons, turns clockwise from top observation.
This point is replenished from Fig. 2 a-d and is embodied.The initial state of valve closing at first is shown among Fig. 2 a.Under the situation shown in Fig. 2 b, lever 20 has been rotated counterclockwise 20 °.Roller 22 meanwhile is pressed on the radially built-in side of cam curve 26.Because the spin axis 16 of cam curve convergence cam part, so cam part 24 can produce rotation in the clockwise direction thus.Cam curve is selected in this case like this, makes lever 20 for example rotate 20 ° and only makes cam part rotation (in an illustrated embodiment) 11.7 °.In other words, under the situation of considering the power of can transmitting, produce a kind of velocity ratio, method be at least in opening this part of motion driver part show the angle bigger than driven member.Consequent enhancing power can effectively be utilized, so that unclamp valve part 14 possible bonding on its valve seat, even perhaps also can reliably open valve at gas pressure under the situation of valve.In addition, can reach very high adjustment quality by suitable design parameter.In other words, can the little amount of exhaust gas recirculation of accurate quantification by little valve open angle adjustment.
In the further variation of opening motion, these characteristics can obtain coupling equally by rights, and cam curve 26 particularly can constitute like this, opening motion when closing to an end, and produces cam part 24 and valve parts 14 rotate on a large scale by lever 20 quite little rotations.Under the situation of Fig. 2 c, for example lever 20 rotations are 50 °, and cam part 24 has moved about 59 °, is 58.7 ° specifically.In other words, compare with the situation shown in Fig. 2 b, the rotation of cam part 24 is greater than driven lever 20.Enhancing power here so no longer obtains utilizing.But do not need enhancing power usually, because occur bonding never again in opening this scope of motion, and air pressure is not had obvious effect again to the valve part 14 that has partially opened yet yet.
Fig. 2 d illustrates done state, just the state opened fully of valve part.Roller 22 on the lever 20 reaches the end of cam curve 26, and lever 20 presents for example 70 ° angle in this case.But cam part 24 and valve part 14 have rotated 90 °, thereby valve part 14 swings in the side regions of through-flow channel like this, make its tangible never again flow resistance.In closing closed procedure, from the state shown in Fig. 2 d, roller 22 is pressed on this side when rolling on the radially external side of cam curve 26 and it rotates on clockwise direction in this case like this, makes the closed position of cam part 24 counterclockwise return movements to valve part 14.Particularly as shown in Figure 2, can very closely be provided with each other with the spin axis 18 of the corresponding lever 20 of the spin axis of rotary actuator 12 with the spin axis 16 of the corresponding cam part of spin axis of valve part 14.Rotary actuator 12 can be to a certain extent be provided with valve part 14 and 16 pairs of centers of spin axis thereof thus, need not like this to use complicated gear transmission conversion equipment and the structure that forms a kind of compact type.
This point also is applicable to the mode of execution shown in Fig. 3 and 4, wherein in Fig. 1 cam part 24 are the driven members that are connected with valve part 14, and specifically, cam part 124 is driver parts.In the exhaust gas recirculation valve 110 of Fig. 3, real rotary actuator 112 is laterally disposed a little, and its rotatablely move shown in situation under by gear transmission to cam part 124.For this purpose in this embodiment, the circumference of the cam part 124 of annular has gear profile 128 basically.As in the mode of execution of Fig. 1, cam part 124 have shown in situation under penetrate the cam curve 126 of itself, constitute but can be used as the groove that has the bottom equally.Cam curve 126 and roller 122 actings in conjunction and rotatable being bearing on the lever 120 that are arranged in the cam curve 126.Lever 120 is on the spin axis 116 that is installed in valve part 114 in the mode of execution of Fig. 1, thereby lever 120 will be delivered on the valve part 114 by means of cam part 124 rotatablely moving of transmission from rotary actuator 112 as driven member.
Fig. 4 replenishes to illustrate with top view and can transmit this situation about rotatablely moving under the situation that constitutes a kind of specific characteristic.At first, Fig. 4 illustrates cam curve 126 and covers about 360 ° angle in this case.But it is emphasized that angle also can less than or greater than 360 °, and the cam part 24 of Fig. 1 and 2 mode of execution cam curve that only has 70 ° of angular regions.But the formation by selected cam curve 126 among Fig. 3 and 4 embodiments can produce large-scale enhancing power in definite stage of opening procedure.This point for example produces thus, and promptly cam curve 126 is when it begins, and just the closed position from valve is very mild.In other words, 126 pairs of cam curves are opened the effective inner side surface of motion and are only changed in diametrically the very small circumference when the beginning of cam curve 126.Corresponding therewith, cam part 124 rotation in a big way is 70 ° of open mode under situation shown in Figure 4, also produces lever 120 small rotation.Only 6 ° of rotations in an illustrated embodiment.By the velocity ratio of this very big scope, in this stage of opening procedure, can reach large-scale power and strengthen.Can unclamp the bonding of valve part 114 when particularly applied force needs, and the air pressure that exists of opposing and open this valve part.When cam part 124 continued rotation on clockwise direction, roller 122 continued to external compression, and lever 120 is rotated counterclockwise.Generally speaking, Unclosing structure makes cam part 124 rotations cause the valve part half-twist for 360 ° in this embodiment, thereby breaking force is enhanced.In addition, guarantee the low-angle high quality of adjusting when beginning, reach the good quantitative of EGR gas amount by opening.
From full open position, cam part 124 is rotated counterclockwise, and the radial outer side of cam curve 126 constantly inwardly compresses roller 122, thereby lever 120 and valve part 114 are pushed back in the closed position.Concerning this embodiment, by Fig. 4 as can be seen, the spin axis 116 of valve part and the spin axis 130 of cam part can be arranged close to each other, thereby can form a kind of structure of compact type.
Claims (5)
1. exhaust gas recirculation valve (10,110), has a rotary actuator (12,112) and one can be between open position and closed position the valve part (14 of rotary manipulation, 114), it is characterized in that, cam part (24,124) with cam curve (26,126) is set, this cam part is delivered to rotatablely moving of rotary actuator (12,112) on the valve part (14,114), cam part (24,124) cam curve (26,126) covers 70 ° to 360 ° angle.
2. by the described exhaust gas recirculation valve of claim 1, it is characterized in that at least two spin axiss (16,116,18,118,130) of rotary actuator (12,112), cam part (24,124) and valve part (14,114) are parallel to each other.
3. by claim 1 or 2 described exhaust gas recirculation valve, it is characterized in that, cam curve (26,126) smooth variation when closed condition begins, thereby rotary actuator (12,112) rotation makes valve part (14,114) with the angle rotation less than rotary actuator (12,112) angle of rotation with the angle of rotation of determining.
4. by claim 1 or 2 described exhaust gas recirculation valve, it is characterized in that cam part (24,124) is a kind of disc cam with curve disc, wherein have the cam curve (26,126) of form of grooves.
5. by claim 1 or 2 described exhaust gas recirculation valve, it is characterized in that cam part (24,124) cooperatively interacts with a rotatable roller (22,122) that is installed on the lever (20,120).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03024509A EP1526272B2 (en) | 2003-10-24 | 2003-10-24 | Exhaust gas recirculation valve |
| EP03024509.6 | 2003-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1641204A CN1641204A (en) | 2005-07-20 |
| CN100487236C true CN100487236C (en) | 2009-05-13 |
Family
ID=34384636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410095436XA Expired - Fee Related CN100487236C (en) | 2003-10-24 | 2004-10-24 | Exhaust gas recirculation valve |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1526272B2 (en) |
| KR (1) | KR100677942B1 (en) |
| CN (1) | CN100487236C (en) |
| AT (1) | ATE353400T1 (en) |
| DE (1) | DE50306462D1 (en) |
| ES (1) | ES2280668T5 (en) |
| PT (1) | PT1526272E (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031028A1 (en) * | 2006-07-05 | 2008-01-10 | Gustav Wahler Gmbh U. Co. Kg | Valve e.g. exhaust gas reconducting valve, operating device for internal combustion engine, has drive motor and eccentric drive for lifting operation of actuator with valve unit, and driven drive unit that is in connection with rotary drive |
| PT1876348E (en) * | 2006-07-06 | 2009-11-04 | Cooper Standard Automotive D | Exhaust gas recirculation valve |
| DE102009053428A1 (en) * | 2009-11-19 | 2011-06-09 | Pierburg Gmbh | Actuator for converting a rotary motion into a linear motion |
| DE102010025538B4 (en) * | 2010-06-29 | 2013-07-18 | Pierburg Gmbh | locking device |
| FR2962511B1 (en) | 2010-07-12 | 2013-07-26 | Sonceboz Automotive Sa | IMPROVED VALVE, AND APPLICATION |
| KR101011643B1 (en) * | 2010-09-08 | 2011-01-28 | 주식회사 유니크 | Exhaust gas recirculation valve for vehicle |
| DE102010050784A1 (en) | 2010-11-10 | 2012-05-10 | Pierburg Gmbh | locking device |
| FR2978998B1 (en) | 2011-08-08 | 2013-07-26 | Sonceboz Automotive Sa | COMPACT DOSING DEVICE |
| US20130269664A1 (en) * | 2012-04-12 | 2013-10-17 | Kamtec Inc. | Exhaust gas recirculation valve and method of manufacturing cam thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1176433B (en) * | 1959-01-16 | 1964-08-20 | Paul Vulliez | Actuating device for a cock of a cock that can be moved in two stages |
| DE1750293B1 (en) * | 1968-04-19 | 1971-07-29 | Emil Haselhofer Feinmechanik E | MIXING VALVE WITH CONTROL CAM DISCS |
| DE3417612A1 (en) † | 1984-05-23 | 1985-11-14 | Csongrád Megyei Víz- és Csatornamü Vállalat, Szentes | Controlled flow regulator |
| DE19704091A1 (en) * | 1997-02-04 | 1998-08-06 | Wahler Gmbh & Co Gustav | Exhaust gas recirculation valve for an internal combustion engine |
| LU90480B1 (en) * | 1999-11-29 | 2001-05-30 | Delphi Tech Inc | Exhaust gas re-circulation device for an internal combustion engine |
| US20030136930A1 (en) † | 2002-01-23 | 2003-07-24 | Dowden David E. | Non-coaxial rotary linkage |
-
2003
- 2003-10-24 EP EP03024509A patent/EP1526272B2/en not_active Expired - Lifetime
- 2003-10-24 ES ES03024509T patent/ES2280668T5/en not_active Expired - Lifetime
- 2003-10-24 PT PT03024509T patent/PT1526272E/en unknown
- 2003-10-24 DE DE50306462T patent/DE50306462D1/en not_active Expired - Lifetime
- 2003-10-24 AT AT03024509T patent/ATE353400T1/en active
-
2004
- 2004-10-24 CN CNB200410095436XA patent/CN100487236C/en not_active Expired - Fee Related
- 2004-10-25 KR KR1020040085409A patent/KR100677942B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| KR100677942B1 (en) | 2007-02-06 |
| EP1526272A1 (en) | 2005-04-27 |
| EP1526272B1 (en) | 2007-02-07 |
| ES2280668T5 (en) | 2012-10-15 |
| PT1526272E (en) | 2007-03-30 |
| ATE353400T1 (en) | 2007-02-15 |
| CN1641204A (en) | 2005-07-20 |
| ES2280668T3 (en) | 2007-09-16 |
| KR20050039683A (en) | 2005-04-29 |
| EP1526272B2 (en) | 2012-04-11 |
| DE50306462D1 (en) | 2007-03-22 |
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Owner name: HALLA VISTEON CLIMATE CONTROL CORP. Free format text: FORMER OWNER: COOPER STANDARD AUTOMOTIVE DEU Effective date: 20141113 |
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Effective date of registration: 20141113 Address after: South Korea field wide area Patentee after: Halla Climate Control Corp Address before: German schelklingen Patentee before: Cooper Standard Automotive Deu |
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Address after: South Korea field wide area Patentee after: Hanang System Co., Ltd. Address before: South Korea field wide area Patentee before: Halla Climate Control Corp |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: South Korea field wide area Patentee after: Hanang Beijing Great Automotive Components Company Limited Address before: South Korea field wide area Patentee before: Hanang System Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20201024 |