CN203335154U - Diesel inlet valve rocker arm assembly - Google Patents
Diesel inlet valve rocker arm assembly Download PDFInfo
- Publication number
- CN203335154U CN203335154U CN2013203922878U CN201320392287U CN203335154U CN 203335154 U CN203335154 U CN 203335154U CN 2013203922878 U CN2013203922878 U CN 2013203922878U CN 201320392287 U CN201320392287 U CN 201320392287U CN 203335154 U CN203335154 U CN 203335154U
- Authority
- CN
- China
- Prior art keywords
- inlet valve
- arm shaft
- rocker arm
- valve rocker
- oil duct
- 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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- 238000000034 method Methods 0.000 claims description 9
- 238000005461 lubrication Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 90
- 239000000314 lubricant Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a diesel inlet valve rocker arm assembly. The diesel inlet valve rocker arm assembly comprises an inlet valve rocker arm, a ball head combination part and a valve adjusting screw pair. The inlet valve rocker arm is provided with a rocker arm shaft sleeve, a rocker arm shaft fastening bolt opening is formed in the upper side of the rocker arm shaft sleeve, a rocker arm shaft support bayonet is formed in the lower side of the rocker arm shaft sleeve, the two inner side faces of the rocker arm shaft support bayonet are an inlet valve rocker arm first positioning face and an inlet valve rocker arm second positioning face, the inlet valve rocker arm first positioning face and a rocker arm shaft support first positioning face are positioned and installed, and the inlet valve rocker arm second positioning face and a rocker arm shaft support second positioning face are positioned and installed. The ball head combination part is arranged at one end of the inlet valve rocker arm, oil is taken out from an oil channel inside the inlet valve rocker arm to lubricate the working face of the ball head combination part. The valve adjusting screw pair comprises a valve adjusting screw and a locking nut, the valve adjusting screw is connected with the other end of the inlet valve rocker arm through threaded cooperation and is locked through the locking nut, and the oil is taken out from the oil channel inside the inlet valve rocker arm to lubricate the working face of the valve adjusting screw. The rocker arm assembly is positioned through the cooperation of the inlet valve rocker arm and a rocker arm shaft support, and the assembling and positioning precision is high.
Description
Technical field
The utility model relates to engine art, particularly a kind of diesel engine inlet valve rocker arm assembly.
Background technique
The timing gear of motor, camshaft, servo-actuated post, valve stem, rocking arm (the apneustic push rod of side-mounted valve and rocking arm), intake valve, exhaust valve etc. have formed the gas distribution system of motor jointly.Motor (take four cylinder engine as the example) camshaft that takes two turns turns around, on the different amount that corresponding each cylinder is spent at camshaft circumference 360, one has two cams, it two be in cam shaft to diverse location, be responsible for respectively unlatching, intake valve and exhaust valve, after valve is opened certain hour (time of cam jack-up) (cam push up after), valve leans on valve spring automatically to close.Camshaft often turns around, and intake valve and exhaust valve (closing at ordinary times) are respectively opened once,, exhaust air-breathing for motor.When camshaft rotates, the servo-actuated post of convex portion jack-up, valve stem, rocking arm (overhead valve has valve stem, rocking arm), make rocker arms roll, and the other end of rocking arm is depressed valve (intake valve or exhaust valve) opens valve, air inlet or exhaust.
Wherein, existing inlet valve rocker assembly comprises: pitman arm shaft and configuration rocking arm thereon; rocking arm is around pitman arm shaft swing work, but this inlet valve rocker modular construction complexity, assembling and positioning low precision, lubrication effect are bad, has a strong impact on the service behaviour of inlet valve rocker assembly and motor.
The model utility content
The utility model is in order to overcome defect in above-mentioned prior art, provides a kind of simple and reasonable, and the assembling and positioning precision is high, the diesel engine inlet valve rocker arm assembly of high lubricating effect.
For achieving the above object, provide a kind of diesel engine inlet valve rocker arm assembly according to the utility model, comprising:
Inlet valve rocker, it has swing arm sleeve; the swing arm sleeve upside offers pitman arm shaft clamping bolt opening; downside offers the rocker arm shaft support bayonet socket, and rocker arm shaft support bayonet socket two inner side surfaces are to distinguish inlet valve rocker the first locating face, inlet valve rocker second locating face of location and installation with rocker arm shaft support the first locating face, rocker arm shaft support the second locating face;
The bulb conjunction, it is laid in inlet valve rocker one end, adopts from the inner oil duct of inlet valve rocker and gets its working surface of oil lubrication;
The valve adjuster pair, it comprises: valve adjuster and locking nut, valve adjuster is connected with the inlet valve rocker the other end by screw-thread fit, and locks with locking nut; The working surface of oil lubrication valve adjuster is got in employing from the inner oil duct of inlet valve rocker.
In technique scheme, the bulb conjunction is pressed in inlet valve rocker by temperature differential method.
In technique scheme, bulb conjunction and inlet valve rocker interference fit.
In technique scheme, the pitman arm shaft coordinated with the diesel engine inlet valve rocker arm assembly has pitman arm shaft the first oil duct and pitman arm shaft the second oil duct, and pitman arm shaft the first annular oil groove and pitman arm shaft the second annular oil groove that by pitman arm shaft the 3rd oil duct and pitman arm shaft the 4th oil duct, with pitman arm shaft the first oil duct and pitman arm shaft the second oil duct, are communicated with respectively.
In technique scheme; pitman arm shaft the first annular oil groove and inlet valve rocker the first oil duct connect; inlet valve rocker the first oil duct and bulb conjunction annular oil groove connect; bulb conjunction the first oil duct and bulb conjunction the second oil duct connect with bulb conjunction annular oil groove respectively, and the bulb conjunction is lubricated to its working surface by bulb conjunction the first oil duct and bulb conjunction the second oil duct.
In technique scheme, pitman arm shaft the second annular oil groove and inlet valve rocker the second oil duct connect, and valve adjuster is lubricated to its working surface by inlet valve rocker the second oil duct.
Compared with prior art, the utlity model has following beneficial effect: this diesel engine inlet valve rocker arm assembly coordinates location by inlet valve rocker and rocker arm shaft support, and the assembling and positioning precision is high; In addition, its bulb conjunction is got lubricant oil from the inlet valve rocker oil circuit, the working surface of lubricated bulb conjunction, the lubricant oil that valve adjuster oozes out from the inlet valve rocker oil circuit, the working surface of lubricated valve adjuster, high lubricating effect.
The accompanying drawing explanation
The assembly structure schematic diagram that Fig. 1 is diesel engine inlet valve rocker arm assembly of the present utility model;
The inlet valve rocker structural representation that Fig. 2 is diesel engine inlet valve rocker arm assembly of the present utility model;
The rocker arm shaft support structural representation that Fig. 3 is diesel engine inlet valve rocker arm assembly of the present utility model;
The lubricant oil road structure schematic diagram that Fig. 4 is diesel engine inlet valve rocker arm assembly of the present utility model;
The bulb conjunction lubricant oil road structure schematic diagram that Fig. 5 is diesel engine inlet valve rocker arm assembly of the present utility model;
The secondary lubricant oil road structure schematic diagram of the valve adjuster that Fig. 6 is diesel engine inlet valve rocker arm assembly of the present utility model;
The 1-inlet valve rocker, 11-inlet valve rocker the first locating face, 12-inlet valve rocker the second locating face, 13-inlet valve rocker the first supporting surface, 14-inlet valve rocker the second supporting surface, 15-inlet valve rocker the first oil duct, 16-inlet valve rocker the second oil duct, 2-bulb conjunction, 21-bulb conjunction annular oil groove, 22-bulb conjunction the first oil duct, 23-bulb conjunction the second oil duct, the 3-rocker arm shaft support, 31-rocker arm shaft support the first locating face, 32-rocker arm shaft support the second locating face, 33-pitman arm shaft clamping bolt mounting hole, hydraulic fluid port on 34-machine oil, 4-pitman arm shaft clamping bolt, the 5-pitman arm shaft, 51-pitman arm shaft the first oil duct, 52-pitman arm shaft the second oil duct, 53-pitman arm shaft the 3rd oil duct, 54-pitman arm shaft the 4th oil duct, 55-pitman arm shaft the first annular oil groove, 56-pitman arm shaft the second annular oil groove, the 61-valve adjuster, the 62-locking nut.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only for convenience of explanation, do not represent the restriction to the concrete technological scheme of the utility model.
Diesel engine inlet valve rocker arm assembly of the present utility model coordinates location by inlet valve rocker and rocker arm shaft support, and the assembling and positioning precision is high; In addition, its bulb conjunction is got lubricant oil from the inlet valve rocker oil circuit, the working surface of lubricated bulb conjunction, the lubricant oil that valve adjuster oozes out from the inlet valve rocker oil circuit, the working surface of lubricated valve adjuster, high lubricating effect.
Below detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that various aspect of the present disclosure can be by independent realization or the realization of being combined with other aspects.This specification clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the inventive principle of describing in this specification.When describing element or feature and/or embodiment, be intended to expression titled with " one " " one " " be somebody's turn to do " and " described " and there are one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
As shown in Figure 1, the concrete structure of this diesel engine inlet valve rocker arm assembly comprises: inlet valve rocker 1, and the valve adjuster pair and the bulb conjunction 2 that are laid in inlet valve rocker 1 two ends.Wherein, inlet valve rocker 1 is fixed on rocker arm shaft support by pitman arm shaft, pitman arm shaft clamping bolt, around pitman arm shaft, rotates.
As shown in Figures 2 and 3, inlet valve rocker 1 has the swing arm sleeve of cross setting, and the swing arm sleeve upside offers pitman arm shaft clamping bolt opening, and downside offers the rocker arm shaft support bayonet socket.Have respectively the rocking arm deck with the two ends of the rocker arm shaft support 3 of inlet valve rocker 1 adaptation, rocker arm shaft support bayonet socket and rocking arm deck are adaptive to be installed; The both sides of rocking arm deck have respectively rocker arm shaft support the first locating face 31, rocker arm shaft support the second locating face 32 with the axial quadrature of swing arm sleeve, its center of top offers pitman arm shaft clamping bolt mounting hole 33, and the bottom nozzle of pitman arm shaft clamping bolt mounting hole 33 is hydraulic fluid port 34 on machine oil; Rocker arm shaft support bayonet socket two inner side surfaces are to distinguish adaptive inlet valve rocker the first locating face 11, inlet valve rocker the second locating face 12 with rocker arm shaft support the first locating face 31, rocker arm shaft support the second locating face 32; swing arm sleeve is positioned at rocker arm shaft support bayonet socket both sides and has respectively inlet valve rocker the first supporting surface 13, inlet valve rocker the second supporting surface 14, and inlet valve rocker 1 rotates around pitman arm shaft by inlet valve rocker the first supporting surface 13, inlet valve rocker the second supporting surface 14.
During assembling, the rocker arm shaft support bayonet socket of inlet valve rocker 1 snaps in the rocking arm deck of rocker arm shaft support 3, and by pitman arm shaft clamping bolt 4, pitman arm shaft 5, inlet valve rocker 1 is fixed on rocker arm shaft support 3, the installation location of the two is different with traditional orientation type, coordinate and realize by inlet valve rocker the first locating face 11, inlet valve rocker the second locating face 12 and rocker arm shaft support the first locating face 31, rocker arm shaft support the second locating face 32, this orientation type makes inlet valve rocker assembly more accurate positioning.The rocker arm shaft support bayonet socket of inlet valve rocker 1 and the rocking arm deck of rocker arm shaft support 3 adopt Spielpassung, its gap is controlled at (0.1～0.35) mm, be that the distance of inlet valve rocker the first supporting surface 13,14 two locating faces of inlet valve rocker the second supporting surface is than distance bigger (0.1～0.35) mm of rocker arm shaft support the first locating face 31,32 two locating faces of rocker arm shaft support the second locating face, to avoid at the inlet valve rocker assembly when pitman arm shaft moves, because gap is not enough, cause stuckly, the inlet valve rocker assembly loses its effect.Pass through as shown in Figure 4; pitman arm shaft 5 has pitman arm shaft the first oil duct 51 and pitman arm shaft the second oil duct 52, and respectively pitman arm shaft the first annular oil groove 55 and pitman arm shaft the second annular oil groove 56 that pitman arm shaft the 3rd oil duct 53 and pitman arm shaft the 4th oil duct 54 are communicated with pitman arm shaft the first oil duct 51 and pitman arm shaft the second oil duct 52.
As shown in Figure 5, bulb conjunction 2 is pressed in inlet valve rocker by temperature differential method, and both belong to interference fit.In order to meet the usage requirement of bulb conjunction, effectively lubricate the working surface of bulb conjunction 2.Employing is got oil lubrication from the inner oil duct of inlet valve rocker 1.The flow direction of lubricant oil is: hydraulic fluid port 34 on the machine oil that lubricant oil is installed bottom surface from rocker arm shaft support 3, by the gap between rocker arm shaft support 3 and pitman arm shaft clamping bolt 4, enter in pitman arm shaft the first oil duct 51, pitman arm shaft the first oil duct 51 and pitman arm shaft the 3rd oil duct 53 intersect, lubricant oil flows in pitman arm shaft the 3rd oil duct 53, pitman arm shaft the 3rd oil duct 53 and pitman arm shaft the first annular oil groove 55 connect, further arrive in pitman arm shaft the first annular oil groove 55, arrive again inlet valve rocker the first oil duct 15 with its perforation, inlet valve rocker the first oil duct 15 connects with bulb conjunction annular oil groove 21, lubricant oil is full of bulb conjunction annular oil groove, and then enter in bulb conjunction the first oil duct 22 and bulb conjunction the second oil duct 23, then the working surface that reaches lubricated bulb conjunction is lubricated.
As shown in Figure 6, the valve adjuster pair comprises: valve adjuster 61 and locking nut 62, valve adjuster 61 is connected with inlet valve rocker 1 by screw-thread fit, and locks with locking nut 62.The working surface of oil lubrication valve adjuster is got in employing from the inner oil duct of inlet valve rocker 1.Hydraulic fluid port 34 on the machine oil that lubricant oil is installed bottom surface from rocker arm shaft support 3, by the gap between rocker arm shaft support 3 and pitman arm shaft clamping bolt 4, enter in pitman arm shaft the second oil duct 52, pitman arm shaft the second oil duct 52 and pitman arm shaft the 4th oil duct 54 intersect, lubricant oil flows in pitman arm shaft the 4th oil duct 54, pitman arm shaft the 4th oil duct 54 and pitman arm shaft the second annular oil groove 56 connect, further arrive in pitman arm shaft the second annular oil groove 56, arrive inlet valve rocker the second oil duct 16 with its perforation, the gap of lubricant oil between valve adjuster 61 and inlet valve rocker 1 oozed out, and flow to the working surface of valve adjuster.
To sum up, this diesel engine inlet valve rocker arm assembly coordinates location by inlet valve rocker and rocker arm shaft support, and the assembling and positioning precision is high; In addition, its bulb conjunction is got lubricant oil from the inlet valve rocker oil circuit, the working surface of lubricated bulb conjunction, the lubricant oil that valve adjuster oozes out from the inlet valve rocker oil circuit, the working surface of lubricated valve adjuster, high lubricating effect.
Above disclosed be only several specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (6)
1. a diesel engine inlet valve rocker arm assembly, is characterized in that, comprising:
Inlet valve rocker, it has swing arm sleeve, described swing arm sleeve upside offers pitman arm shaft clamping bolt opening, downside offers the rocker arm shaft support bayonet socket, and described rocker arm shaft support bayonet socket two inner side surfaces are to distinguish inlet valve rocker the first locating face, inlet valve rocker second locating face of location and installation with rocker arm shaft support the first locating face, rocker arm shaft support the second locating face;
The bulb conjunction, it is laid in inlet valve rocker one end, adopts from the inner oil duct of inlet valve rocker and gets its working surface of oil lubrication;
The valve adjuster pair, it comprises: valve adjuster and locking nut, described valve adjuster is connected with the inlet valve rocker the other end by screw-thread fit, and locks with locking nut; The working surface of oil lubrication valve adjuster is got in employing from the inner oil duct of described inlet valve rocker.
2. diesel engine inlet valve rocker arm assembly according to claim 1, it is characterized in that: described bulb conjunction is pressed in described inlet valve rocker by temperature differential method.
3. diesel engine inlet valve rocker arm assembly according to claim 1 and 2, is characterized in that: described bulb conjunction and inlet valve rocker interference fit.
4. diesel engine inlet valve rocker arm assembly according to claim 1, it is characterized in that: the pitman arm shaft coordinated with described diesel engine inlet valve rocker arm assembly has pitman arm shaft the first oil duct and pitman arm shaft the second oil duct, and pitman arm shaft the first annular oil groove and pitman arm shaft the second annular oil groove that by pitman arm shaft the 3rd oil duct and pitman arm shaft the 4th oil duct, with pitman arm shaft the first oil duct and pitman arm shaft the second oil duct, are communicated with respectively.
5. diesel engine inlet valve rocker arm assembly according to claim 4, it is characterized in that: described pitman arm shaft the first annular oil groove and inlet valve rocker the first oil duct connect, described inlet valve rocker the first oil duct and bulb conjunction annular oil groove connect, described bulb conjunction the first oil duct and bulb conjunction the second oil duct connect with described bulb conjunction annular oil groove respectively, and described bulb conjunction is lubricated to its working surface by bulb conjunction the first oil duct and bulb conjunction the second oil duct.
6. diesel engine inlet valve rocker arm assembly according to claim 4 is characterized in that: described pitman arm shaft the second annular oil groove and inlet valve rocker the second oil duct connect, and described valve adjuster is lubricated to its working surface by inlet valve rocker the second oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203922878U CN203335154U (en) | 2013-07-03 | 2013-07-03 | Diesel inlet valve rocker arm assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203922878U CN203335154U (en) | 2013-07-03 | 2013-07-03 | Diesel inlet valve rocker arm assembly |
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| Publication Number | Publication Date |
|---|---|
| CN203335154U true CN203335154U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203922878U Expired - Fee Related CN203335154U (en) | 2013-07-03 | 2013-07-03 | Diesel inlet valve rocker arm assembly |
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| Country | Link |
|---|---|
| CN (1) | CN203335154U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033201A (en) * | 2014-07-07 | 2014-09-10 | 广西玉柴机器股份有限公司 | Rocker arm assembly of V-type engine |
| CN105569756A (en) * | 2015-03-18 | 2016-05-11 | 第一拖拉机股份有限公司 | Diesel engine single overhead camshaft driven valve rocker mechanism |
| CN107939467A (en) * | 2017-12-28 | 2018-04-20 | 潍柴动力股份有限公司 | Valve intake and exhaust rocker structure and diesel engine |
| CN108223048A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | The lubricating system of engine valve rocker arm component |
| CN111271147A (en) * | 2020-04-10 | 2020-06-12 | 安徽航瑞航空动力装备有限公司 | Engine valve rocker mounting structure |
| CN111734510A (en) * | 2020-07-31 | 2020-10-02 | 广西玉柴机器股份有限公司 | Engine rocker arm |
| CN114575955A (en) * | 2022-04-14 | 2022-06-03 | 广西玉柴机器股份有限公司 | A rocker arm seat and rocker arm shaft assembly |
| CN114753901A (en) * | 2022-04-24 | 2022-07-15 | 第一拖拉机股份有限公司 | Rocker shaft assembly for diesel engine valve actuating mechanism |
-
2013
- 2013-07-03 CN CN2013203922878U patent/CN203335154U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033201A (en) * | 2014-07-07 | 2014-09-10 | 广西玉柴机器股份有限公司 | Rocker arm assembly of V-type engine |
| CN105569756A (en) * | 2015-03-18 | 2016-05-11 | 第一拖拉机股份有限公司 | Diesel engine single overhead camshaft driven valve rocker mechanism |
| CN105569756B (en) * | 2015-03-18 | 2018-01-12 | 第一拖拉机股份有限公司 | Arranged on top of diesel engine single camshaft drives Valve Rocker Organization |
| CN107939467A (en) * | 2017-12-28 | 2018-04-20 | 潍柴动力股份有限公司 | Valve intake and exhaust rocker structure and diesel engine |
| CN107939467B (en) * | 2017-12-28 | 2023-12-15 | 潍柴动力股份有限公司 | Valve air inlet and outlet rocker arm structure and diesel engine |
| CN108223048B (en) * | 2018-02-07 | 2023-09-29 | 广西玉柴机器股份有限公司 | Lubrication system for engine valve rocker assembly |
| CN108223048A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | The lubricating system of engine valve rocker arm component |
| CN111271147A (en) * | 2020-04-10 | 2020-06-12 | 安徽航瑞航空动力装备有限公司 | Engine valve rocker mounting structure |
| CN111271147B (en) * | 2020-04-10 | 2022-05-24 | 安徽航瑞航空动力装备有限公司 | Engine valve rocker mounting structure |
| CN111734510A (en) * | 2020-07-31 | 2020-10-02 | 广西玉柴机器股份有限公司 | Engine rocker arm |
| CN114575955A (en) * | 2022-04-14 | 2022-06-03 | 广西玉柴机器股份有限公司 | A rocker arm seat and rocker arm shaft assembly |
| CN114575955B (en) * | 2022-04-14 | 2025-03-11 | 广西玉柴机器股份有限公司 | A rocker arm seat and rocker arm shaft assembly |
| CN114753901A (en) * | 2022-04-24 | 2022-07-15 | 第一拖拉机股份有限公司 | Rocker shaft assembly for diesel engine valve actuating mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
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| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 21, 2023, the expiration and termination of 39 volumes and 2902 issues of patents Number: 29-02 Volume: 39 |
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| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |