CN204492956U - A kind of use for diesel engine water-cooled and air-cooled interactive sink - Google Patents
A kind of use for diesel engine water-cooled and air-cooled interactive sink Download PDFInfo
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- CN204492956U CN204492956U CN201520082024.6U CN201520082024U CN204492956U CN 204492956 U CN204492956 U CN 204492956U CN 201520082024 U CN201520082024 U CN 201520082024U CN 204492956 U CN204492956 U CN 204492956U
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Abstract
The utility model discloses a kind of use for diesel engine water-cooled and air-cooled interactive sink, comprise air cooling system and constituent, air cooling system comprises fan, air guide sleeve and the radiating fin be positioned on cylinder sleeve and cylinder head, the closed-circuit pipe that constituent comprises Mini gear pump and is connected with Mini gear pump, closed-circuit pipe is attached on cylinder head, the power input shaft of Mini gear pump is connected with impeller, impeller is in the outlet end of exhaust bypass pipe, the entrance of exhaust bypass pipe is communicated with the outlet pipe on cylinder head, be provided with in the middle part of exhaust bypass pipe for monitoring gas temperature paraffin valve in outlet pipe.The utility model is by water-cooled and air-cooled mutual heat radiation, improve the heat dissipation rate of motor when high load works, improve cylinder head temperature situation pockety, prevent too high distortion and the gas leakage causing cylinder head of cylinder cap temperature, improve the situation of the many places igniting when hot operation in cylinder simultaneously.
Description
Technical field
The utility model belongs to diesel engine technical field of heat dissipation, especially a kind of water-cooled and air-cooled interactive sink.
Background technique
Along with high performance and the requirement needing anti-adverse environment of diesel engine, when diesel engine high load works, produce larger temperature rise with cylinder head in cylinder, if dispelled the heat not in time, will directly affect Economy and the reliability of diesel engine.Current is all utilize flywheel fan and wind scooper to carry out forced air cooling to band gelled cylinder sleeve, cylinder head and aluminum alloy organism in diesel engine cooling mode, to reduce cylinder sleeve, the operating temperature of cylinder head and the temperature of complete machine, high load and rugged environment use single air-cooled radiating device to be difficult to reach require that of high heat radiation.The water-cooled power converter with great heat radiation effect provides a suitable solution.
The preparation process of air-cooled diesel engine requires that comparatively water-cooled diesel engine wants high, also high to the requirement that is heat-resisting, wear-resisting, expansion coefficient of all material.Air-cooled diesel engine starts convenient, economical operation, to the strong adaptability of environment.But have a lot of notice when using: answer low-speed running warming-up after startup, standby temperature rises, and engine oil pressure, temperature etc. drop into operation after meeting job requirement again, in order to avoid machine temperature rises too fast and damages parts; Can not stop working after stopping operation at once, should make diesel engine pasta in middle low idle for a moment, stop working again after standby temperature suitably declines; In operation, machine temperature can not be too high, and the airflow that air-cooled diesel engine relies on fan to produce completely is to cool body, and during work, temperature can not be too high, departs from normal working temperature for a long time and will be easy to scuffing of cylinder bore accident occurs.If the too high meeting of cylinder temperature causes part material, intensity at high temperature reduces, if excessive temperature differentials, thermal stress is excessive, easy generation heat fatigue cracking, particularly " ridge area " of cylinder cap can produce the higher temperature difference, cylinder cap also because temperature is too high and skewness causes local deformation, may produce gas leak phenomenon.
Water-cooled diesel engine mainly contains recirculated water cooling diesel engine and the large class of evaporating water cooled diesel engine two.Because cooling effect is fine, be mainly used in the production fields such as engineering machinery, automotive industry, ship machinery, power industry.Generally, water-cooled diesel engine volume is large, and power is large, and oil consumption is many, and structure compares the confidential complexity of air-cooled diesel, equally also has more multiple faults.
Application number be 201410123630.8 patent discloses a kind of wind water cooling two cooling single-cylinder vertical-type diesel engine, it is air-cooled that it can utilize flywheel fan to carry out, water pump can be utilized again to extract water countercylinder cover out and to carry out water source cooling, but on the basis of air-cooled radiating device, the only water-cooling apparatus of simple superposition pipeline composition in the ventilation slot of aluminium matter radiating sleeve, interactivity is not had between air cooling equipment and water cooling plant, the power that can not realize under high low-load distributes automatically, increases the energy consumption of diesel engine own.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of use for diesel engine water-cooled and air-cooled interactive sink, this mixing sink is by water-cooled and air-cooled mutual, improve the heat dissipation rate of motor when high load works, improve cylinder head temperature situation pockety, prevent too high distortion and the gas leakage causing cylinder head of cylinder cap temperature, improve the situation of the many places igniting when hot operation in cylinder simultaneously.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of use for diesel engine water-cooled and air-cooled interactive sink, comprise air cooling system, described air cooling system comprises fan, air guide sleeve and the radiating fin be positioned on cylinder sleeve and cylinder head, characterized by further comprising constituent, the closed-circuit pipe that described constituent comprises Mini gear pump and is connected with Mini gear pump, described closed-circuit pipe is attached on cylinder head, the power input shaft of described Mini gear pump is connected with impeller, described impeller is in the outlet end of exhaust bypass pipe, the entrance of exhaust bypass pipe is communicated with the outlet pipe on cylinder head, be provided with in the middle part of exhaust bypass pipe for monitoring gas temperature paraffin valve in outlet pipe.
Said structure is described further, described closed-circuit pipe comprises water tank, the water outlet of described water tank is connected with Mini gear pump, the water intake of water tank is connected with Mini gear pump by S type outlet pipe, S type water-cooling channel, intake pipe successively, form closed-loop path, described S type outlet pipe is placed in air guide sleeve, and described S type water-cooling channel is attached on cylinder head.
Be described further said structure, described S type water-cooling channel arranges water-cooling channel radiating fin, and described water-cooling channel radiating fin and radiating fin form diesel engine sink.
Be described further said structure, the position that described intake pipe enters cylinder head is in the side near intake valve, and S type water-cooling channel is arranged in the central position of cylinder head, is near intake valve and exhaust valve.
Said structure is described further, described paraffin valve comprises sleeve, push rod, valve hole, elastic diaphragm, temperature-sensitive bag and temperature-sensitive mineral wax mixture, described temperature-sensitive bag is placed in outlet pipe, temperature-sensitive mineral wax mixture is filled with in temperature-sensitive bag, and be covered on temperature-sensitive mineral wax mixture by elastic diaphragm, one end of sleeve compresses elastic diaphragm outer, the push rod one end be slidably matched at barrel bore is close in the middle part of elastic diaphragm, and be provided with valve hole at the middle part of push rod, valve hole is mated with exhaust bypass pipe, controls the Push And Release of constituent.
Said structure is described further, the common casting of cylinder head of described S type water-cooling channel and diesel engine, and is sealed by welding manner.
The beneficial effect adopting technique scheme to produce is: 1) the utility model is organically integrated water-cooled and air cooling system, form interactive mixing sink, on the basis of original air cooling system, the temperature be vented by cylinder and Exhaust Pressure drive water cooling plant, realize engine cylinder under water-cooled and air-cooled interactive sink effect, effectively improve engine radiating ability, reduce the risk that temperature rise and the temperature difference are brought, improve the performance of diesel engine, reduce scuffing of cylinder bore, the too high probability causing the faults such as part deformation of temperature; 2) the utility model is by being organically integrated between cylinder head and the closed-circuit pipe of constituent, significantly reduce the volume of water-cooled and air cooling system sink, structure is simple, is convenient to dismounting and maintenance, engine fuel consumption rate also can not be caused to have larger change simultaneously; 3) the position arrangement of S type water-cooling channel intake pipe near side, cylinder air inlet road because the temperature of intake duct is all the time lower than the temperature of exhaust passage, the temperature of air outlet flue can be utilized to reduce the temperature of exhaust passage; 4) water-cooling channel adopts S type, and current flow to higher temperatures district from comparatively low temperature area, then flow back to comparatively low temperature area, and S type water-cooling channel like this can prevent the Shuitu in water-cooling channel from so producing higher temperatures liter, reduces radiating effect; 5) S type water-cooling channel is arranged in the center region of cylinder head, is namely centered around near inlet and exhaust valve, because cylinder head the most easily produces temperature rise and the larger temperature difference is exactly this region, effectively can prevent the harm that temperature rise and the larger temperature difference are brought.Simultaneously not at other local layout water-cooling channels of cylinder head, in case temperature is fallen too low near vortex chamber, then can have a negative impact.Also reduce whole Water-cooling circulating process simultaneously, accelerate heat dissipation rate.6) on water-cooling channel, arrange suitable radiating fin, while water-cooled, also can carry out wind-cooling heat dissipating simultaneously, and when temperature is reduced in proper range, water-cooling stops, now air cooling system proceeds heat radiation; 7) water temperature reducing circulating water in whole Water-cooling circulating process is mainly freezed by the airflow in fan, reasonably arranges, also reduces the total volume of whole water cooling plant; 8) because water cooling plant enhances the radiating effect of diesel engine, so fan of diesel engine size originally suitably can be reduced, thus the bearing power of diesel engine accessory is alleviated, for suitable minimizing oil consumption provides useful help; 9) power of whole Water-cooling circulating comes from exhaust energy, and discarded energy is converted to kinetic energy, has effectively carried out exhaust gas utilization.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cylinder head and constituent combining structure schematic diagram;
Fig. 3 is paraffin valve mechanism schematic diagram;
Fig. 4 is the schematic diagram of water-cooling heat radiating system;
Wherein: 1, air guide sleeve, 2, water tank, 3 oil nozzles, 4, S type outlet pipe, 5, intake valve, 6, cylinder head, 7, exhaust valve, 8, S type water-cooling channel, 9, paraffin valve, 10, exhaust bypass pipe, 11, exhaust silencer, 12, impeller, 13, coupling shaft, 14, intake pipe, 15, Mini gear pump, 16, fuel tank; 17, radiating fin, 18, vortex chamber, 19, baffler, 20, water-cooling channel radiating fin; 21, paraffin valve, 22, outlet pipe, 21.1, sleeve, 21.2, push rod, 21.3, valve hole, 21.4, elastic diaphragm, 21.5, temperature-sensitive bag, 21.6, temperature-sensitive mineral wax mixture.
Embodiment
1-4 is known with reference to the accompanying drawings, and the utility model is specifically related to a kind of use for diesel engine water-cooled and air-cooled interactive sink, is the transformation to diesel engine sink, makes diesel engine cylinders have higher heat dissipation potential, reduces the risk that temperature rise and the temperature difference are brought.
This sink specifically comprises air cooling system, air cooling system comprises fan, air guide sleeve 1 and the radiating fin 17 be positioned on cylinder sleeve and cylinder head 6, the utility model is on the basis of the original air cooling system of diesel engine, add constituent, the wherein constituent closed-circuit pipe that comprises Mini gear pump 15 and be connected with Mini gear pump 15, closed-circuit pipe is attached on cylinder head 6, the power input shaft of Mini gear pump 15 is connected with impeller 12, impeller 12 is in the outlet end of exhaust bypass pipe 10, the entrance of exhaust bypass pipe 10 is communicated with the outlet pipe 22 on cylinder head 6, be provided with in the middle part of exhaust bypass pipe 10 for monitoring gas temperature paraffin valve 21 in outlet pipe 22.
Interactive heat radiation is realized between the utility model apoplexy cold-peace water-cooled, its interactive radiating can with reference to shown in accompanying drawing 4, when after diesel engine starting, first dispelled the heat by air cooling equipment, simultaneously by gas temperature in paraffin valve 21 Real-Time Monitoring outlet pipe 22, when temperature in diesel engine cylinder is elevated to a timing, start to carry out water-cooled and air-cooled mixing heat radiation; Now, paraffin valve 21 is opened, and the exhaust bypass pipe 10 of cylinder exhaust ports is communicated with, and utilize exhaust kinetic energy to promote impeller 12 high speed rotating, impeller 12 drives Mini gear pump 15, realizes the water circulation flowing in closed-circuit pipe, realizes water-cooled and air-cooled common heat radiation; When vapour cylinder temperature is reduced to uniform temperature, paraffin valve 21 is closed, and gear pump Mini gear pump 15 quits work, and the water in pipeline gets back to water tank, and water cooling plant stops heat radiation, and air cooling equipment continues heat radiation.
Can see in fig. 1, closed-circuit pipe in the utility model comprises water tank 2, the water outlet of water tank 2 is connected with Mini gear pump 15, and the water intake of water tank 2 is connected with Mini gear pump 15 by S type outlet pipe 4, S type water-cooling channel 8, intake pipe 14 successively, forms closed-loop path.In this closed-loop path, water-cooling channel adopts S type, and current flow to higher temperatures district from comparatively low temperature area, then flow back to comparatively low temperature area, and S type water-cooling channel like this can prevent the Shuitu in water-cooling channel from so producing higher temperatures liter, reduces radiating effect.S type outlet pipe 4 is placed in air guide sleeve 1, air blast can be utilized to come to cooling water temperature, enter in water tank 2 after cooling again, further cooling down water, and prepare for next step Water-cooling circulating.
The mode that S type water-cooling channel 8 is attached on cylinder head 6 is: S type water-cooling channel 8 casting common with the cylinder head 6 of diesel engine, and is sealed by welding manner.And the position that the intake pipe 14 of S type water-cooling channel 8 enters cylinder head 6 is in the side near intake valve 5, the position arrangement of S type water-cooling channel 8 intake pipe in close side, cylinder air inlet road, because the temperature of intake duct is all the time lower than the temperature of exhaust passage, the temperature of air outlet flue can be utilized to reduce the temperature of exhaust passage; S type water-cooling channel 8 is arranged in the central position of cylinder head 6, is near intake valve 5 and exhaust valve 7.S type water-cooling channel 8 is arranged in the center region of cylinder head, is namely centered around near inlet and exhaust valve, because cylinder head the most easily produces temperature rise and the larger temperature difference is exactly this region, effectively can prevent the harm that temperature rise and the larger temperature difference are brought.Simultaneously not at other local layout water-cooling channels of cylinder head, in case temperature is fallen too low near vortex chamber, then can have a negative impact.Also reduce whole Water-cooling circulating process simultaneously, accelerate heat dissipation rate.
In fig 2, S type water-cooling channel 8 arranges water-cooling channel radiating fin 20, water-cooling channel radiating fin 20 and radiating fin 17 form diesel engine sink.S type water-cooling channel 8 arranges suitable radiating fin, while water-cooled, also can carry out wind-cooling heat dissipating simultaneously, and when temperature is reduced in proper range, water-cooling stops, now air cooling system proceeds heat radiation.
The structure of the paraffin valve 21 in the utility model is shown in accompanying drawing 3, it specifically comprises sleeve 21.1, push rod 21.2, valve hole 21.3, elastic diaphragm 21.4, temperature-sensitive bag 21.5 and temperature-sensitive mineral wax mixture 21.6, temperature-sensitive bag 21.5 is placed in outlet pipe 22, temperature-sensitive mineral wax mixture 21.6 is filled with in temperature-sensitive bag 21.5, and be covered on temperature-sensitive mineral wax mixture 21.6 by elastic diaphragm 21.4, one end of sleeve 21.1 compresses elastic diaphragm 21.4 outer, push rod 21.2 one end be slidably matched at sleeve 21.1 inner chamber is close in the middle part of elastic diaphragm 21.4, and be provided with valve hole 21.3 at the middle part of push rod 21.2, valve hole 21.3 is mated with both exhaust bypass pipes 10, control the Push And Release of constituent.Paraffin valve 21 is by the principle of the pre-thermal expansion of the temperature-sensitive mineral wax mixture 21.6 in temperature-sensitive bag 21.5, make elastic diaphragm 21.4 promote push rod 21.2 to slide up and down in sleeve 21.1, realize the folding of valve hole 21.3 and gas bypass tube 10, controlled the break-make of gas bypass tube 10 by cylinder delivery temperature, realize the unlatching of water cooling plant.
The concrete heat radiation drive manner of the utility model is described as follows:
When in diesel engine cylinder, temperature is elevated to certain numerical value, start to carry out water-cooled and air-cooled mixing heat radiation: the temperature-sensitive mineral wax mixture 21.6 in paraffin valve 9 expands after being subject to the high temperature in outlet pipe 22, push rod 21.2 is up pushed away, valve hole 2.13 and exhaust bypass pipe 10 overlap and form path, now paraffin valve 9 is opened, gas in exhaust bypass pipe 10 acts on impeller 12, make its high speed rotating, coupling shaft 13 drives Mini gear pump 15, water is extruded from water tank 2, the S type water-cooling channel 8 entered in cylinder head 6 from intake pipe 14 carries out cooling by water, water flows out from S type outlet pipe 4 afterwards, water tank 2 is entered after the air cooling in fan dome 1, whole said process is carried out in circulation, and the water-cooling channel radiating fin 20 on cylinder head 6 accelerates the radiation processes of whole cylinder head 6 and water.When vapour cylinder temperature is reduced to uniform temperature, temperature-sensitive mineral wax mixture 21.6 in paraffin valve 9 shrinks, push rod 21.2 moves downward, valve hole 21.3 and exhaust bypass pipe 10 stagger, and paraffin valve 9 is closed, and do not have gas impeller 12 to work, Mini gear pump 15 quits work, water in pipeline gets back to water tank 2, and constituent stops heat radiation, and air cooling system continues heat radiation.
Mini gear pump 15 is connected with impeller 12 by coupling shaft 13, when impeller 12 high speed rotating time, provide power to Mini gear pump 15.From S type water-cooling channel 8 cooling water out, by S type outlet pipe 4 out, S type outlet pipe 4 directly enters fan dome 1, utilizes air blast to come to cooling water temperature.Enter again after cooling in water tank 2, further cooling down water, and prepare for next step Water-cooling circulating.
This patent adopts the air-cooled interactive sink of engine water cold-peace, automatically opening or closing control mechanism, reaching the object automatically selecting water-cooled or air-cooled radiating device when different load by arranging at engine cylinder head according to temperature.The utility model is by being organically integrated between cylinder head and the closed-circuit pipe of constituent; it changes less on former machine; reinforcement high engine load has an impact to its service behaviour while of being radiating efficiency hardly; meanwhile, designed mechanism and component structural are simple, highly versatile; be convenient to maintenance maintenance; Security during the large load operation of available protecting motor, thus further reduce its rate of fault, ensure that the Economy that motor is higher.The cooling medium adopted is water, easily obtains and cost is lower, the bad performance such as non-corrosiveness, all has good guarantee to the functional reliability and Security improving water cooling plant.By the interworking mode of water-cooled and air-cooled two kinds of radiating modes, all can good heat dispersion be ensured in the whole process of engine operation, also significant to former machine air-cooled diesel engine environmental suitability tool.
Claims (6)
1. a use for diesel engine water-cooled and air-cooled interactive sink, comprise air cooling system, described air cooling system comprises fan, air guide sleeve (1) and the radiating fin (17) be positioned in cylinder liner and cylinder head (6), characterized by further comprising constituent, the closed-circuit pipe that described constituent comprises Mini gear pump (15) and is connected with Mini gear pump (15), described closed-circuit pipe is attached in cylinder head (6), the power input shaft of described Mini gear pump (15) is connected with impeller (12), described impeller (12) is in the outlet end of exhaust bypass pipe (10), the entrance of exhaust bypass pipe (10) is communicated with the outlet pipe (22) in cylinder head (6), be provided with for monitoring gas temperature paraffin valve (21) in outlet pipe (22) at exhaust bypass pipe (10) middle part.
2. a kind of use for diesel engine water-cooled according to claim 1 and air-cooled interactive sink, it is characterized in that described closed-circuit pipe comprises water tank (2), the water outlet of described water tank (2) is connected with Mini gear pump (15), the water intake of water tank (2) is connected with Mini gear pump (15) by S type outlet pipe (4), S type water-cooling channel (8), intake pipe (14) successively, form closed-loop path, described S type outlet pipe (4) is placed in air guide sleeve (1), and described S type water-cooling channel (8) is attached in cylinder head (6).
3. a kind of use for diesel engine water-cooled according to claim 2 and air-cooled interactive sink, it is characterized in that described S type water-cooling channel (8) arranges water-cooling channel radiating fin (20), described water-cooling channel radiating fin (20) and radiating fin (17) form diesel engine sink.
4. a kind of use for diesel engine water-cooled according to claim 2 and air-cooled interactive sink, it is characterized in that position that described intake pipe (14) enters cylinder head (6) is in the side near intake valve (5), S type water-cooling channel (8) is arranged in the central position of cylinder head (6), is near intake valve (5) and exhaust valve (7).
5. a kind of use for diesel engine water-cooled according to claim 1 and air-cooled interactive sink, it is characterized in that described paraffin valve (21) comprises sleeve (21.1), push rod (21.2), valve hole (21.3), elastic diaphragm (21.4), temperature-sensitive bag (21.5) and temperature-sensitive mineral wax mixture (21.6), described temperature-sensitive bag (21.5) is placed in outlet pipe (22), temperature-sensitive mineral wax mixture (21.6) is filled with in temperature-sensitive bag (21.5), and be covered on temperature-sensitive mineral wax mixture (21.6) by elastic diaphragm (21.4), one end of sleeve (21.1) compresses elastic diaphragm (21.4) outer, elastic diaphragm (21.4) middle part is close in push rod (21.2) one end that sleeve (21.1) inner chamber is slidably matched, and be provided with valve hole (21.3) at the middle part of push rod (21.2), both valve hole (21.3) and exhaust bypass pipe (10) mate, control the Push And Release of constituent.
6. a kind of use for diesel engine water-cooled according to claim 2 and air-cooled interactive sink, be is characterized in that described S type water-cooling channel (8) casting common with the cylinder head (6) of diesel engine, and is sealed by welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520082024.6U CN204492956U (en) | 2015-02-05 | 2015-02-05 | A kind of use for diesel engine water-cooled and air-cooled interactive sink |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520082024.6U CN204492956U (en) | 2015-02-05 | 2015-02-05 | A kind of use for diesel engine water-cooled and air-cooled interactive sink |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632349A (en) * | 2015-02-05 | 2015-05-20 | 邵阳学院 | Water-cooling and air-cooing interactive type heat dissipation device for diesel engine |
| CN105863812A (en) * | 2016-04-07 | 2016-08-17 | 邵阳学院 | Air cooling and water cooling combined engine multi-element cooling system |
| CN106437999A (en) * | 2016-09-30 | 2017-02-22 | 中车唐山机车车辆有限公司 | Internal combustion engine cooling system for internal combustion motor train unit, internal combustion engine and cooling method |
-
2015
- 2015-02-05 CN CN201520082024.6U patent/CN204492956U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632349A (en) * | 2015-02-05 | 2015-05-20 | 邵阳学院 | Water-cooling and air-cooing interactive type heat dissipation device for diesel engine |
| CN105863812A (en) * | 2016-04-07 | 2016-08-17 | 邵阳学院 | Air cooling and water cooling combined engine multi-element cooling system |
| CN105863812B (en) * | 2016-04-07 | 2018-04-03 | 邵阳学院 | A kind of compound air-cooled and water cooling polynary cooling system of engine |
| CN106437999A (en) * | 2016-09-30 | 2017-02-22 | 中车唐山机车车辆有限公司 | Internal combustion engine cooling system for internal combustion motor train unit, internal combustion engine and cooling method |
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| 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: 20150722 Termination date: 20170205 |