CN201010924Y - Automatic fast cooling system for excavator hydraulic oil - Google Patents
Automatic fast cooling system for excavator hydraulic oil Download PDFInfo
- Publication number
- CN201010924Y CN201010924Y CNU2007200787845U CN200720078784U CN201010924Y CN 201010924 Y CN201010924 Y CN 201010924Y CN U2007200787845 U CNU2007200787845 U CN U2007200787845U CN 200720078784 U CN200720078784 U CN 200720078784U CN 201010924 Y CN201010924 Y CN 201010924Y
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- Prior art keywords
- hydraulic oil
- compressor
- hydraulic
- hydraulic pressure
- excavator
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- Expired - Fee Related
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- 239000010720 hydraulic oil Substances 0.000 title claims description 47
- 238000001816 cooling Methods 0.000 title abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000009347 mechanical transmission Effects 0.000 claims description 7
- 241001463139 Vitta Species 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a drab hydraulic pressure oil automatic and quick heat eliminating device. The utility model comprises a hydraulic pressure driving system which consists of a hydraulic pressure oil box, a hydraulic pressure pump and a working device, a cold winter radiator; further comprises a refrigerating device which consists of a compressor, a condenser, capillaries and an evaporator. A hydroturbine is also arranged on the hydraulic pressure vitta path on the back of the working device, one section of the hydraulic pressure vitta path of the exit of the hydroturbine is a serpentinepipe which is arranged in a cooling box; the output axes of the hydroturbine is connected with the axes of the compressor by a mechanical driving mechanism and an electromagnetism clutch is arranged between the axes of the compressor and the mechanical driving mechanism; and a temperature controlling device which controls the jointing of the electromagnetism clutch to start the compressor, a temperature sensor of the temperature controlling device is arranged on the hydraulic pressure vitta path which is on the back of the working device. The utility model can refrigerate the hydraulic pressure oil when the hydraulic pressure oil exceeding the scheduled value, to keep the hydraulic pressure oil in a normal temperature range and to ensure the drab always in a normal working state.
Description
Technical field
The utility model relates to the hydraulic system of excavator, particularly has the excavator hydraulic system of quick heat radiating function.
Background technology
Full hydraulic excavator is a kind of broad-spectrum engineering machinery.It is that medium is realized power conversion with hydraulic oil.So the quality requirements to hydraulic oil is quite high.Hydraulic oil is for excavator hydraulic system: be sliding agent be again coolant.Hydraulic oil has a lot of important characteristics, the most important thing is viscosity.Hydraulic oil viscosity changes with the variation of oil temperature, oily temperature rise, and after viscosity descended, fluid made the oil film breakdown at each movable position through hydraulic system, and frictional force increases, and causes system's heating, and thermal expansion is excessive, and leaking increases.Cause operating rate slow, the complete machine operating efficiency obviously descends.
According to the data introduction: when hydraulic oil temperature surpasses 55 ℃, fluid oxidation aggravation, shorten application life, at this moment, if 9 ℃ of warm every risings of oil, can shorten half the application life of oil, viscosity is almost lost, lubricity reduces greatly, thereby causes whole hydraulic system aggravation wearing and tearing, shortens excavator application life.This shows the complete machine performance of hydraulic oil cooling system and excavator and crucial relation is arranged application life.
At present, excavator hydraulic pressure cooling system adopts air-cooled: use the engine blower air draught, the wind-force outside making is blown over hydraulic oil radiator and is cooled off hydraulic oil.Radiating mode DeGrain like this.Because hydraulic oil radiator leans against engine radiator, is subjected to engine radiator conduction of heat and external working environment thermal convection current and thermal-radiating the influence, especially when working environment surpassed 30 ℃, its heat radiation cooling effect was very undesirable.
The utility model content
The purpose of this utility model is to provide the automatic quick heat radiating of a kind of excavator hydraulic oil system at the problem of prior art existence, to solve the problem of hydraulic oil heat radiation.
This novel purpose is realized by the following technical programs: the automatic quick heat radiating of a kind of excavator hydraulic oil system, comprise the Hydraulic Power Transmission System of forming by hydraulic oil container and hydraulic pump and equipment, air-cooled radiator, also have by compressor, condenser, dryer, capillary tube and evaporimeter and connect in turn by the road and first connection of tail and the refrigerating plant formed, evaporimeter is arranged in the cooler bin; Also be provided with the hydraulic turbine on the hydraulic oil pipeline of equipment back, have one section to be coil pipe in the hydraulic oil pipeline of hydraulic turbine outlet, coil pipe is arranged in the cooler bin; The output shaft of the hydraulic turbine is connected with the axle of compressor through mechanical transmission mechanism, and is provided with electromagnetic clutch between the axle of compressor and the mechanical transmission mechanism; Be used to control the temperature control equipment that electromagnetic clutch engages starting compressor thereby also have, the temperature pick up of temperature control equipment is arranged on the hydraulic oil pipeline of equipment back.
This novel main points are to increase by one to the hydraulic oil refrigerating plant, the Refrigeration Technique that this refrigerating plant adopts current refrigerator of fast cooling in short-term in the existing Hydraulic Power Transmission System of excavator.Its cooler bin is equivalent to the refrigerating chamber of current refrigerator, evaporimeter can adopt aluminum composite plate formula evaporimeter, tube-in-sheet evaporator (steel pipe that curves U-shaped is fixed on the in type metal shell outside wall surface, places cooler bin again), fin tubular evaparator (being formed by the tube bending that has fin) or fin pipe-coil type evaporator.
During excavator work, hydraulic oil circulates in the Hydraulic Power Transmission System of being made up of hydraulic oil container, hydraulic pump and equipment (being the hydraulic cylinder class), and when hydraulic fluid temperature was lower than setting control point (as 55 ℃), temperature control equipment was not powered to electromagnetic clutch.Though the hydraulic turbine rotates under the impulsion of hydraulic oil, because electromagnetic clutch is in off-state, compressor is in halted state, and whole refrigerating plant is not worked; When the temperature of hydraulic oil rises to the setting control point, when reaching 55 ℃ as oily temperature (according to investigations, under the excavator normal operation, the temperature of hydraulic oil is between 60-80 ℃), the control circuit of temperature control equipment (be made up of temperature pick up and control circuit etc., belong to prior art) is switched on to electromagnetic clutch, electromagnetic clutch engages, thereby the hydraulic turbine rotates compressor by mechanical transmission mechanism, promptly starts refrigerating plant, and the cold-producing medium cyclic process is as follows:
High-temperature high-pressure refrigerant (as F-12) liquid from condenser, the dryer of flowing through, reduce pressure by throttle capillary tube again, temperature also decreases, then, enter the evaporimeter heat absorption, and hurried boiling, after becoming low-temperature low-pressure refrigerant steam, sucked by compressor, and be compressed into high-temperature high-pressure refrigerant steam and enter condenser, emit the heat and compressor consumption heat that external work produced that absorbs by evaporimeter at the condenser place after, become the normal temperature high voltage refrigerant liquid, the dryer of flowing through again, hair suction pipe form kind of refrigeration cycle.Thereby evaporimeter produces cold, makes the hydraulic oil cooling in the coil pipe in the cooler bin, and returns to normal temperature range, and excavator is able to operate as normal.
With this novel beneficial effect that is had compared to existing technology be:
The cooling of hydraulic pressure rapidly, reliable, can guarantee that hydraulic oil is in the normal temperature range all the time, guarantee the excavator operate as normal, prolong the application life of excavator hydraulic system.
In original Hydraulic Power Transmission System, increase a refrigerating plant; (cold-producing medium can be selected the cycloalkanes cold-producing medium of existing green refrigeration use in refrigerator for use to refrigerating plant by temperature control equipment control; preferably do not adopt freon (as R12); damage with protection atmospheric ozone layer and being unlikely); can finish refrigeration to hydraulic oil rapidly, guarantee that excavator hydraulic system is working properly.
As, Hitachi's 240 excavators (132 kilowatts in motor), 2000 rev/mins of maximum speeds, 2 * 224 liters/minute of hydraulic pump (embolism pump) maximum stream flows.The flow of hydraulic oil is big, and flow velocity is fast.When the environment temperature number is high (as above 30 ℃), only depend on the thermolysis of existing air-cooled radiator far can not reach requirement.And adopt this novel, and can freeze rapidly, quicken hydraulic oil is implemented cooling, and keep the optimum working temperature of hydraulic oil, make excavator be in normal operating conditions all the time.
Description of drawings
Fig. 1 is this novel schematic diagram in Hydraulic Power Transmission System;
Fig. 2 is the schematic diagram of this novel refrigerant-cycle systems;
Fig. 3 is the drive connection schematic diagram of the hydraulic turbine shown in Figure 1 and excavator shown in Figure 2;
Fig. 4 is the turbine structure figure of the hydraulic turbine shown in Figure 1.
The specific embodiment
The Hydraulic Power Transmission System of existing excavator is mainly by hydraulic oil container 1, hydraulic pump 2 and equipment 3 (referring to hydraulic cylinder and operating mechanism thereof) are formed, among Fig. 1, hydraulic oil container 1, hydraulic pump 2, equipment 3, the hydraulic turbine 5 is (referring to Fig. 4, the import of the hydraulic turbine, outlet is connected in the pipeline respectively) connect in turn by the road, and tail head connects to form a hydraulic oil circulating system, wherein, there is one section to be coil pipe 8 in the hydraulic oil pipeline of hydraulic turbine outlet, coil pipe 8 is arranged in the cooler bin 6, and air-cooled radiator 7 (using engine blower to dispel the heat) is arranged on the pipeline of hydraulic oil container 1 import.Referring to Fig. 2, refrigerating plant (prior art) is connected in turn by the road by compressor 15, condenser 16, dryer 17, capillary tube 18 and evaporimeter 19 and tail head connects to form, and evaporimeter 19 is arranged in the cooler bin 6.Referring to Fig. 3, the hydraulic turbine 5 (referring to Fig. 4, is equipped with turbine 20, belongs to prior art in the hydraulic turbine 5.The inlet tube of turbine has a contraction section among the figure, so that current quicken.) output shaft be connected through the axle of mechanical transmission mechanism and compressor 15, and it is (optional with electromagnetic friction clutch, powder clutch or electromagnetism slip-clutch to be provided with electromagnetic clutch 14 between the axle of compressor 15 and the mechanical transmission mechanism, when feeding direct current, its driving link and driven member connect, clutch is in engagement state, thereby transmits the rotary machine energy).Electromagnetic clutch is arranged on the axle of compressor (herein, essence is meant compression pump).Temperature control equipment is made up of temperature pick up 4 and temperature-control circuit, and it is used to control, and electromagnetic clutch engages, starting compressor.Temperature pick up 4 is arranged on the hydraulic oil pipeline of equipment shown in Figure 13 back or stretches in the pipeline.Referring to Fig. 3, mechanical transfer mechanism is gear drive and pulley transmission mechanism: gear 10 and the hydraulic turbine 5 coaxial settings, driven gear 11 and belt pulley 12 coaxial settings, driven pulley 13 are arranged on the axle of compressor 15.Also be provided with the flywheel 9 that is used to store dynamic moment of inertia on the axle of gear 10.
This novel technical scheme also can be (promptly not adopting the hydraulic turbine): increase a cold-producing medium refrigerating plant in existing excavator Hydraulic Power Transmission System, the hydraulic oil pipeline of need cooling partly is arranged in the household freezer of this refrigerating plant, promptly place in the household freezer together with evaporimeter, again by a temperature control equipment, as current refrigerator with plain edition temperature controller or electric temperature regulator type temperature controller (" see graphics repair refrigerator ", the People's Telecon Publishing House, July in 2006 the 2nd edition, P61 and P62) control the starting of compressor (compression pump and motor integration setting), perhaps, adopt one and (place hydraulic oil pipeline by temperature pick up, to hydraulic oil temperature sampling) and the temperature control equipment of controller (be used for when design temperature, compressor being powered, make compressor operation work) composition.
The present invention is not limited to technique scheme, and all general changes on basic structure of the present invention basis should belong to protection domain of the present invention.
Claims (3)
1. the automatic quick heat radiating of excavator hydraulic oil system, comprise the Hydraulic Power Transmission System of forming by hydraulic oil container (1) and hydraulic pump (2) and equipment (3), air-cooled radiator (7), it is characterized in that: also have by compressor (15), condenser (16), dryer (17), capillary tube (18) and evaporimeter (19) and connect in turn by the road and first connection of tail and the refrigerating plant formed, evaporimeter (19) is arranged in the cooler bin (6); Also be provided with the hydraulic turbine (5) on the hydraulic oil pipeline of described equipment (3) back, have one section to be coil pipe (8) in the hydraulic oil pipeline of hydraulic turbine outlet, coil pipe (8) is arranged in the cooler bin; The output shaft of the hydraulic turbine (5) is connected with the axle of compressor (15) through mechanical transmission mechanism, and is provided with electromagnetic clutch (14) between the axle of compressor (15) and the mechanical transmission mechanism; Also have the temperature control equipment that is used to control electromagnetic clutch (14) thereby engages starting compressor, the temperature pick up of temperature control equipment (4) is arranged on the hydraulic oil pipeline of equipment (3) back.
2. according to the automatic quick heat radiating of the described excavator hydraulic oil of claim 1 system, it is characterized in that: described mechanical transfer mechanism is gear drive and pulley transmission mechanism: gear (10) and the coaxial setting of the hydraulic turbine (5), driven gear (11) and the coaxial setting of belt pulley (12), driven pulley (13) are arranged on the axle of compressor (15).
3. according to the automatic quick heat radiating of the described excavator hydraulic oil of claim 2 system, it is characterized in that: also be provided with the flywheel (9) that is used to store dynamic moment of inertia on the axle of described gear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200787845U CN201010924Y (en) | 2007-03-16 | 2007-03-16 | Automatic fast cooling system for excavator hydraulic oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200787845U CN201010924Y (en) | 2007-03-16 | 2007-03-16 | Automatic fast cooling system for excavator hydraulic oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201010924Y true CN201010924Y (en) | 2008-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200787845U Expired - Fee Related CN201010924Y (en) | 2007-03-16 | 2007-03-16 | Automatic fast cooling system for excavator hydraulic oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201010924Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994729A (en) * | 2010-12-22 | 2011-03-30 | 西安交通大学苏州研究院 | Oil temperature control system and control method of refrigeration type hydraulic system |
| CN102207117A (en) * | 2011-05-18 | 2011-10-05 | 中国人民解放军理工大学 | Backpack modular hydraulic power system used in emergency state |
| CN102535572A (en) * | 2012-02-23 | 2012-07-04 | 中联重科股份有限公司 | Hybrid power hydraulic excavator and cooling system thereof |
| CN102748342A (en) * | 2011-04-19 | 2012-10-24 | 江苏富陶车辆部件有限公司 | Oil temperature control device for large hydraulic presses |
| CN103089759A (en) * | 2013-01-30 | 2013-05-08 | 三一重机有限公司 | Engineering machine and hydraulic oil cooling controlling system thereof |
| CN105937856A (en) * | 2016-06-30 | 2016-09-14 | 江苏金荣森制冷科技有限公司 | Industrial refrigerating machine with impact-resistant energy storage heat sink |
| CN106016965A (en) * | 2016-06-30 | 2016-10-12 | 江苏金荣森制冷科技有限公司 | Working method of industrial refrigerator with tubular heater |
| CN106016966A (en) * | 2016-06-30 | 2016-10-12 | 江苏金荣森制冷科技有限公司 | Industrial refrigerating machine with tubular heater |
| CN106123418A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The method of work of the industrial refrigeration machine of the hydraulic pressure bypass with ball-type relief valve |
| CN106123412A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The industrial refrigeration machine of the hydraulic pressure bypass with adjustable relief valve |
| CN106152823A (en) * | 2016-06-30 | 2016-11-23 | 江苏金荣森制冷科技有限公司 | The method of work of the industrial refrigeration machine with protecting against shock accumulation of energy radiator |
| CN106284474A (en) * | 2016-09-23 | 2017-01-04 | 广西玉柴重工有限公司 | A kind of hydraulic crawler excavator quiet explosion-proof air-conditioner system |
| CN107923300A (en) * | 2015-12-25 | 2018-04-17 | 株式会社Kcm | work machinery |
| CN111608998A (en) * | 2020-05-12 | 2020-09-01 | 湖北锐坤机械制造有限公司 | Hydraulic control system of loader-digger for coal mine |
| CN114670247A (en) * | 2022-04-20 | 2022-06-28 | 江苏徐工工程机械研究院有限公司 | Cooling system of forcible entry robot and forcible entry robot |
-
2007
- 2007-03-16 CN CNU2007200787845U patent/CN201010924Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994729A (en) * | 2010-12-22 | 2011-03-30 | 西安交通大学苏州研究院 | Oil temperature control system and control method of refrigeration type hydraulic system |
| CN102748342A (en) * | 2011-04-19 | 2012-10-24 | 江苏富陶车辆部件有限公司 | Oil temperature control device for large hydraulic presses |
| CN102207117A (en) * | 2011-05-18 | 2011-10-05 | 中国人民解放军理工大学 | Backpack modular hydraulic power system used in emergency state |
| CN102207117B (en) * | 2011-05-18 | 2013-03-27 | 中国人民解放军理工大学 | Backpack modular hydraulic power system used in emergency state |
| CN102535572A (en) * | 2012-02-23 | 2012-07-04 | 中联重科股份有限公司 | Hybrid power hydraulic excavator and cooling system thereof |
| CN102535572B (en) * | 2012-02-23 | 2014-06-04 | 中联重科股份有限公司 | Hybrid power hydraulic excavator and cooling system thereof |
| CN103089759A (en) * | 2013-01-30 | 2013-05-08 | 三一重机有限公司 | Engineering machine and hydraulic oil cooling controlling system thereof |
| CN103089759B (en) * | 2013-01-30 | 2016-01-20 | 三一重机有限公司 | A kind of engineering machinery and hydraulic oil cooling control system thereof |
| CN107923300A (en) * | 2015-12-25 | 2018-04-17 | 株式会社Kcm | work machinery |
| CN107923300B (en) * | 2015-12-25 | 2020-06-19 | 日立建机株式会社 | Working machine |
| CN106123412A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The industrial refrigeration machine of the hydraulic pressure bypass with adjustable relief valve |
| CN106123418A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The method of work of the industrial refrigeration machine of the hydraulic pressure bypass with ball-type relief valve |
| CN106016965A (en) * | 2016-06-30 | 2016-10-12 | 江苏金荣森制冷科技有限公司 | Working method of industrial refrigerator with tubular heater |
| CN106152823A (en) * | 2016-06-30 | 2016-11-23 | 江苏金荣森制冷科技有限公司 | The method of work of the industrial refrigeration machine with protecting against shock accumulation of energy radiator |
| CN105937856A (en) * | 2016-06-30 | 2016-09-14 | 江苏金荣森制冷科技有限公司 | Industrial refrigerating machine with impact-resistant energy storage heat sink |
| CN106123412B (en) * | 2016-06-30 | 2019-03-26 | 江苏金荣森制冷科技有限公司 | The industrial refrigeration machine of hydraulic pressure bypass with adjustable relief valve |
| CN106016966A (en) * | 2016-06-30 | 2016-10-12 | 江苏金荣森制冷科技有限公司 | Industrial refrigerating machine with tubular heater |
| CN106284474A (en) * | 2016-09-23 | 2017-01-04 | 广西玉柴重工有限公司 | A kind of hydraulic crawler excavator quiet explosion-proof air-conditioner system |
| CN106284474B (en) * | 2016-09-23 | 2018-05-22 | 广西玉柴重工有限公司 | A kind of mute explosion-proof air-conditioner system of hydraulic crawler excavator |
| CN111608998A (en) * | 2020-05-12 | 2020-09-01 | 湖北锐坤机械制造有限公司 | Hydraulic control system of loader-digger for coal mine |
| CN114670247A (en) * | 2022-04-20 | 2022-06-28 | 江苏徐工工程机械研究院有限公司 | Cooling system of forcible entry robot and forcible entry robot |
| CN114670247B (en) * | 2022-04-20 | 2023-12-08 | 江苏徐工工程机械研究院有限公司 | Broken cooling system who tears robot open and tear robot open |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 |