CN103306843A - Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head - Google Patents
Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head Download PDFInfo
- Publication number
- CN103306843A CN103306843A CN2013102621191A CN201310262119A CN103306843A CN 103306843 A CN103306843 A CN 103306843A CN 2013102621191 A CN2013102621191 A CN 2013102621191A CN 201310262119 A CN201310262119 A CN 201310262119A CN 103306843 A CN103306843 A CN 103306843A
- Authority
- CN
- China
- Prior art keywords
- main oil
- engine cylinder
- oil gallery
- core
- tappet
- 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.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000005266 casting Methods 0.000 claims description 19
- 238000003754 machining Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 114
- 238000000034 method Methods 0.000 abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 abstract description 14
- 239000004411 aluminium Substances 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 10
- 239000003595 mist Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000000465 moulding Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an engine cylinder head and a processing method of main oil gallery tappet holes of the engine cylinder head. The engine cylinder head comprises two main oil galleries, tappet holes and valve spring mounting holes, and is specialized in that the cross sections of the main oil galleries are long circle-shaped; the long axis direction of the long circles is in the width direction of the engine cylinder head; the short axis of the long circles is in the height direction of the engine cylinder head; and the main oil galleries are communicated with the tappet holes through cross structures. The method has the advantages as follows: 1. through the change of the sand mold structure, the main oil galleries and the tappet holes adopt cast formation, the processing technology is simplified, no deep hole processing equipment is needed, the processing time is reduced, and the manufacturing cost and the processing difficulty are reduced, 2.the opening directions and the sizes of oil draining holes at the bottom of the tappet holes are adjusted, the problem of aluminium skimming cleaning difficulty is solved, and the cost waste caused by cleaning the aluminium skimming is reduced, and 3. the addition of oil draining grooves in the valve spring mounting holes cannot increase the manufacturing cost, and can effectively reduce the oil mist problem produced due to the lubricating oil gathering in counter bores.
Description
Technical field
The present invention relates to the processing method of a kind of automobile component, particularly engine cylinder cap and described cylinder head main oil gallery and tappet hole, belong to automobile technical field.
Background technique
Engine cylinder cap is the important feature assembly that consists of motor.Its purposes mainly is closed cylinder top, consists of the firing chamber. and also have the support of air inlet-outlet pipe as camshaft and pitman arm shaft, air is drawn onto cylinder interior, mixed gas drives the piston acting in the outburst of firing chamber internal combustion, and waste gas is discharged from outlet pipe.Be provided with main oil gallery and oil sump on the Modern Engine cylinder head, then lubricant oil collect the oil sump that lubricant oil is back to engine bottom by oil sump by parts such as main oil gallery camshaft lubrication, tappet, rocking arms.Be furnished with the structures such as tappet hole, valve spring mounting hole, back oil road, cylinder bolt installation base on the cylinder head oil sump, the tappet hole intermediate section communicates with main oil gallery, high pressure oil is provided for the hydraulic pressure tappet, the bottom have drain pan with lubricant oil earial drainage unnecessary in the tappet hole to oil sump; The valve spring mounting hole mainly is to support valve spring, and valve spring is played leading role.
At present, engine cylinder cap has following problem in structural design and processing method: 1. the cylinder head main oil gallery of motor all adopts the machining moulding, and the main oil gallery that will run through cylinder head by Deep-Hole Drilling Technology processes.Owing to main oil gallery is carefully grown, the deep hole processing difficulty is large, and technological requirement is high, wastes time and energy; 2. main oil gallery and tappet hole are realized connecting by machine-tooled method, very easily form sharp edge, burr in the perforation position, in most cases these sharp edges, burr need the special device cleaning, and can't accomplish to remove thoroughly, these burrs easily come off in the motor using process, enter each kinematic pair with lubricant oil, the lighter causes kinematic pair scuffing, abnormal sound, severe one causes the kinematic pair inordinate wear until stuck, and stopping suddenly appears in motor, affects service life of aeroengine.3. the bottom of the tappet hole in cylinder head oil sump drain pan opening direction forward and little with cylinder head bolt lug gap, in the cylinder cap course of working, produce a large amount of aluminium bits, it is unclean that the aluminium bits can be stuck in the interior cleaning of drain pan, aluminium is considered lubricated oil to be worth doing and is cleaned out with lubricant oil and enter main oil gallery in engine operation process, causes the movement parts inordinate wears such as bent axle, camshaft, piston; 4. for guaranteeing the guiding of valve spring, the valve spring mounting hole is designed to counterbore, parts of lubricating oil enters in the valve spring mounting hole and can't discharge in engine operation process, because moving up and down of valve spring, lubricant oil in the counterbore is splashed, cause oil moisture content surge in the oil sump, mist of oil enters deaerator on the valve mechanism cover with crankcase waste gas, the work load of deaerator is increased, cause the oil gas sub-argument unclear, mist of oil enters the firing chamber and participates in burning, and the problem of burn oil appears in motor.
Summary of the invention
The object of the invention is to the drawback for prior art, a kind of engine cylinder cap that is difficult for accumulating machining chips, reduces mist of oil in the oil sump is provided; The engine cylinder cap main oil gallery tappet hole processing method that another object of the present invention provides a kind of good manufacturability, is easy to process.
Problem of the present invention realizes with following technical proposals:
A kind of engine cylinder cap, it comprises two main oil gallerys, tappet hole, cylinder bolt platform and valve spring mounting hole, its specialization is, the cross section of described main oil gallery is long-round-shape, this oblong long axis direction is along the engine cylinder cap width direction, this oblong minor axis is along the engine cylinder cap short transverse, and main oil gallery is communicated with tappet hole through connecting bridge.
Above-mentioned engine cylinder cap, described connecting bridge and main oil gallery and tappet hole connection smooth transition.
Above-mentioned engine cylinder cap, described tappet hole bottom is provided with the draining hole, draining hole opening deflection cylinder bolt platform one side, draining hole height dimension B is the 9-10 millimeter.
Above-mentioned engine cylinder cap, the side edge of described valve spring mounting hole is provided with oil unloading trough.
Above-mentioned engine cylinder cap main oil gallery tappet hole processing method, described main oil gallery is formed by casting, and described tappet hole is formed by casting and machining, and the connecting bridge that is formed by casting between main oil gallery and the tappet hole connects.
Above-mentioned engine cylinder cap main oil gallery tappet hole processing method, the casting sand core structure comprises oil pocket core, tappet hole core, connecting bridge core and main oil gallery core, wherein, the main oil gallery core be arranged two in parallel, each bar main oil gallery core is affixed through eight connecting bridge cores and eight tappet hole cores respectively, and an end of each tappet hole core is affixed with the oil pocket core respectively.
Above-mentioned engine cylinder cap main oil gallery tappet hole processing method, described tappet hole core is Step Shaft shape, the diameter of tappet hole core root and oil pocket core connection part is larger.
Above-mentioned engine cylinder cap main oil gallery tappet hole processing method, described main oil gallery core cross section is long-round-shape, and its cross-sectional dimension longitudinal axis L is 11 millimeters, and minor axis H is 7 millimeters.
Above-mentioned engine cylinder cap main oil gallery tappet hole processing method, the diameter at described tappet hole core larger diameter place is 9 millimeters, the diameter at small diameter place is 8 millimeters.
Major advantage of the present invention is as follows: 1, by changing sand mould structure, main oil gallery and tappet hole are adopted casting, simplified processing process need not deep hole processing equipment, reduces process time, reduces manufacture cost and difficulty of processing; 2, main oil gallery directly communicates by connecting bridge with tappet hole, reduces the burr that course of working produces, and avoids the burr rear scuffing to movement parts that comes off; 3. by to tappet hole bottom draining hole opening direction and size adjusting, solve aluminium bits cleaning hard problem, reduced the cost waste that causes because of cleaning aluminium bits; Can avoid again causing the inordinate wear problem that does not thoroughly cause because of the cleaning of aluminium bits, improve product reliability; 4. the drain pan of valve spring mounting hole increase can effectively reduce under the condition that does not increase cost of production because of the lubricant oil in the counterbore and assemble generation mist of oil problem, fundamentally avoids the generation of burn oil problem.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention (plan view);
Fig. 2 is the A-A sectional view (amplification) of Fig. 1;
Fig. 3 is structural representation of the present invention (front view);
Fig. 4 is Fig. 3 D place zoomed-in view;
Fig. 5 is the casting sand core schematic diagram;
Fig. 6 is that the E of Fig. 5 is to view;
Fig. 7 is the C-C sectional view (amplification) of Fig. 6.
Each list of reference numerals is among the figure: 1, engine cylinder cap, 2, main oil gallery, 3, connecting bridge, 4, tappet hole, 5, valve spring mounting hole, 6, oil unloading trough, 7, the cylinder bolt platform, 8, draining hole, 9, oil pocket core, 10, the main oil gallery core, 11, the tappet hole core, 12, connecting bridge core, 13, main oil gallery is communicated with oil duct.
Embodiment
Referring to Fig. 1-3, engine cylinder cap 1 of the present invention comprises two main oil gallerys 2, tappet hole 4, cylinder bolt platform 7 and valve spring mounting hole 5.Article two, main oil gallery is communicated with oil duct 13 connections by main oil gallery.The cross section of described main oil gallery 2 is long-round-shape, and this oblong long axis direction is along the engine cylinder cap width direction, and this oblong minor axis is along the engine cylinder cap short transverse.Be communicated with the connection rounding off of connecting bridge and main oil gallery and tappet hole through connecting bridge 3 between main oil gallery and the tappet hole 4.
Referring to Fig. 3, Fig. 4, be provided with draining hole 8 in the bottom of tappet hole 4, the described draining of difference from prior art hole is not arranged under the tappet hole, but opening deflection cylinder bolt platform 7 one sides, draining hole height dimension B is the 9-10 millimeter.Produce a large amount of aluminium bits in the cylinder cap course of working, the aluminium bits can be stuck in and be difficult to cleaning in the draining hole, and aluminium is considered lubricated oil to be worth doing and cleaned out with lubricant oil and enter main oil gallery in engine operation process, causes the movement parts inordinate wears such as bent axle, camshaft, piston.For the problems referred to above, the present invention has changed position and the size in draining hole, increases the height dimension in draining hole, because aluminium bits diameter 5-8mm, draining hole height is that 9-10mm considers diameter to be worth doing greater than aluminium, makes the aluminium bits can not be stuck in place, draining hole, be easy to cleaning, realize the clean requirement of cylinder cap cleaning.
Referring to Fig. 1, be provided with four groups of valve spring mounting holes at engine cylinder cap 1, every group comprises four valve spring mounting holes 5, for guaranteeing the guiding of valve spring, the valve spring mounting hole is counterbore.The problem of accumulating lubricant oil for solving the valve spring mounting hole, the present invention has cast an oil unloading trough 6 at the side of each valve spring mounting hole, lubricant oil is in time flowed out from drain pan, avoid valve spring to evoke the lubricant oil that accumulates in the counterbore when pumping doing, produce thereby reduce a large amount of mist of oils.
As an important improvement technology of the present invention, be that main oil gallery is improved to casting by the conventional method of machining moulding, connecting bridge also is casting, tappet hole is machining moulding after the first casting.The structure of main oil gallery is elongated hole, and diameter is at the 5-8 millimeter, approximately 450 millimeters of length, and directly the problem that exists of casting is: elongated main oil gallery sand core strength is excessively low, and is difficult to the location.Although the machining deep hole has a lot of problems, owing to not finding suitable casting method, the main oil gallery of engine cylinder cap also all is to adopt the method for machining to finish all the time.For the difficulty of main oil gallery casting, the method that the present invention takes is as follows: referring to Fig. 5-7, suitably increase the cross-section area of main oil gallery core 10, to improve its intensity, main oil gallery core sectional dimension increases, and the sectional dimension of main oil gallery also increases naturally.Common main oil gallery is circular cross-section, and its diameter is at the 5-8 millimeter.The present invention is designed to long round section with main oil gallery, and namely the main oil gallery core is all long round section, and the cross-sectional dimension longitudinal axis L of main oil gallery core 10 is 11 millimeters, and minor axis H is 7 millimeters.Like this, the size of main oil gallery core cross section is increased, intensity increases.The long axis direction of main oil gallery long round section can not have influence on the overall structure of engine cylinder cap along the engine cylinder cap width direction when main oil gallery cross-section area size increases.The present invention casts the tappet hole of engine cylinder cap in the casting main oil gallery in the lump, and casts out between main oil gallery and tappet hole and be communicated with the two connecting bridge.By Fig. 5, Fig. 6 as seen, main oil gallery core 10 be arranged two in parallel, and each bar main oil gallery core is affixed through eight connecting bridge cores 12 and eight tappet hole cores 11 respectively, and an end of each tappet hole core 11 is affixed with the oil pocket core respectively.Said structure, the location of realizing the main oil gallery core by connecting bridge core and tappet hole core on the one hand, make on the other hand the main oil gallery core that a plurality of strong points have been arranged, further improved its intensity, in addition, realize smooth transition by connecting bridge between tappet hole and the main oil gallery, reduced machining allowance, avoided making engine operation more smooth and easy because machining forms sharp edge, burr.For improving the join strength of tappet hole core 11 and oil pocket core 9, tappet hole core 11 is Step Shaft shape, and the root diameter (RD) of tappet hole core and oil pocket core joint is larger, is 9 millimeters; The diameter at tappet hole core small diameter place is 8 millimeters, is the working position of tappet hole behind this minor diameter position casting.Adopt the inventive method, the engine cylinder cap main oil gallery adopts the one-step casting moulding, has greatly reduced workload and the difficulty of machining, and simplified processing process need not deep hole processing equipment, reduces process time, thereby reduces manufacture cost.Main oil gallery communicates by connecting bridge with tappet hole, reduces the burr that course of working produces, and avoids the burr rear scuffing to movement parts that comes off.
Claims (9)
1. engine cylinder cap, it comprises two main oil gallerys, tappet hole, cylinder bolt platform and valve spring mounting hole, it is characterized in that, the cross section of described main oil gallery (2) is long-round-shape, this oblong long axis direction is along the engine cylinder cap width direction, this oblong minor axis is along the engine cylinder cap short transverse, and main oil gallery is communicated with tappet hole (4) through connecting bridge (3).
2. engine cylinder cap according to claim 1 is characterized in that, described connecting bridge and main oil gallery and tappet hole connection smooth transition.
3. engine cylinder cap according to claim 2 is characterized in that, described tappet hole (4) bottom is provided with draining hole (8), draining hole opening deflection cylinder bolt platform (7) one sides, and draining hole height dimension B is the 9-10 millimeter.
4. engine cylinder cap according to claim 3 is characterized in that, the side edge of described valve spring mounting hole (5) is provided with oil unloading trough (6).
5. according to claim 1,2,3 or 4 described engine cylinder cap main oil gallery tappet hole processing methods, it is characterized in that, described main oil gallery is formed by casting, and described tappet hole is formed by casting and machining, and the connecting bridge that is formed by casting between main oil gallery and the tappet hole connects.
6. engine cylinder cap main oil gallery tappet hole processing method according to claim 7, it is characterized in that, the casting sand core structure comprises oil pocket core (9), tappet hole core (11), connecting bridge core (12) and main oil gallery core (10), wherein, the main oil gallery core be arranged two in parallel, each bar main oil gallery core is affixed through eight connecting bridge cores and eight tappet hole cores respectively, and an end of each tappet hole core is affixed with the oil pocket core respectively.
7. engine cylinder cap main oil gallery tappet hole processing method according to claim 6 is characterized in that, described tappet hole core (11) is Step Shaft shape, and the diameter of tappet hole core root and oil pocket core connection part is larger.
8. engine cylinder cap main oil gallery tappet hole processing method according to claim 7 is characterized in that, described main oil gallery core cross section is long-round-shape, and its cross-sectional dimension longitudinal axis L is 11 millimeters, and minor axis H is 7 millimeters.
9. engine cylinder cap main oil gallery tappet hole processing method according to claim 8 is characterized in that, the diameter at described tappet hole core (11) larger diameter place is 9 millimeters, and the diameter at small diameter place is 8 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262119.1A CN103306843B (en) | 2013-06-27 | 2013-06-27 | Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262119.1A CN103306843B (en) | 2013-06-27 | 2013-06-27 | Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306843A true CN103306843A (en) | 2013-09-18 |
| CN103306843B CN103306843B (en) | 2015-07-01 |
Family
ID=49132466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310262119.1A Expired - Fee Related CN103306843B (en) | 2013-06-27 | 2013-06-27 | Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306843B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035819A (en) * | 2017-12-04 | 2018-05-15 | 杨程日 | The wide arc gap side through hole of cylinder cover of automobile engine tappet bore |
| CN111974947A (en) * | 2019-05-21 | 2020-11-24 | 长城汽车股份有限公司 | Forming method of oil return channel of cylinder cover and cylinder cover with oil return channel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080110332A1 (en) * | 2006-11-14 | 2008-05-15 | Jea Woong Yi | Oil supply structure for reducing friction of cam shaft |
| CN101344024A (en) * | 2008-08-22 | 2009-01-14 | 奇瑞汽车股份有限公司 | Engine with novel oilway |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
| CN101886583A (en) * | 2010-06-17 | 2010-11-17 | 重庆长安汽车股份有限公司 | Variable valve timing engine cylinder cover |
-
2013
- 2013-06-27 CN CN201310262119.1A patent/CN103306843B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080110332A1 (en) * | 2006-11-14 | 2008-05-15 | Jea Woong Yi | Oil supply structure for reducing friction of cam shaft |
| CN101344024A (en) * | 2008-08-22 | 2009-01-14 | 奇瑞汽车股份有限公司 | Engine with novel oilway |
| CN101482044A (en) * | 2008-12-22 | 2009-07-15 | 奇瑞汽车股份有限公司 | Engine camshaft bearing cover |
| CN101886583A (en) * | 2010-06-17 | 2010-11-17 | 重庆长安汽车股份有限公司 | Variable valve timing engine cylinder cover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035819A (en) * | 2017-12-04 | 2018-05-15 | 杨程日 | The wide arc gap side through hole of cylinder cover of automobile engine tappet bore |
| CN111974947A (en) * | 2019-05-21 | 2020-11-24 | 长城汽车股份有限公司 | Forming method of oil return channel of cylinder cover and cylinder cover with oil return channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103306843B (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108331907B (en) | Lubricating system oil circuit structure of vertical high-speed box | |
| CN202810991U (en) | Lubricating oil-way system of multi-cylinder aerodynamic engine | |
| CN103306843B (en) | Engine cylinder head and processing method of main oil gallery tappet holes of engine cylinder head | |
| CN103452619A (en) | Oil way system for aerodynamic engine | |
| CN203308544U (en) | Engine multi-channel oil returning structure, engine with engine multi-channel oil returning structure and automobile with engine multi-channel oil returning structure | |
| CN206884082U (en) | A kind of mould for being used to process ball-type valve block | |
| CN204186516U (en) | Superhigh pressure jetting system tappet body | |
| CN201187329Y (en) | Cam shaft bush mounting structure | |
| CN208778498U (en) | Engine connecting rod bearing bush | |
| CN101205944A (en) | Engine link | |
| CN202560341U (en) | Air power engine oil system | |
| CN201198793Y (en) | Automobile, motorcycle and four-stroke petrol engine pistons | |
| CN203214116U (en) | Oil way system of rotating engine | |
| CN203805341U (en) | Hydraulic punching machine | |
| CN219809074U (en) | Cylinder liner, engine and vehicle | |
| CN202578818U (en) | Engine cylinder lubricating oil circuit | |
| CN203547945U (en) | Automobile engine cylinder block additionally provided with oil returning channel oil collecting groove | |
| CN219993799U (en) | Engine cylinder cover, engine and vehicle | |
| CN101363338A (en) | Engine oil nozzle hole for cooling and lubricating piston of horizontal diesel engine | |
| CN111207002A (en) | Piston | |
| CN219994161U (en) | Anti-jamming connecting rod and compressor | |
| CN201277072Y (en) | Piston cooling and lubricating engine oil nozzle of horizontal diesel engine | |
| CN201874970U (en) | Diesel engine crank with lubricating oil ducts with reasonable structures | |
| CN201277071Y (en) | Engine oil nozzle of diesel engine | |
| CN204098999U (en) | A kind of motor and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150701 |