CN108825360A - A kind of turbocharging structure and its control method - Google Patents
A kind of turbocharging structure and its control method Download PDFInfo
- Publication number
- CN108825360A CN108825360A CN201810645595.4A CN201810645595A CN108825360A CN 108825360 A CN108825360 A CN 108825360A CN 201810645595 A CN201810645595 A CN 201810645595A CN 108825360 A CN108825360 A CN 108825360A
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- Prior art keywords
- turbine
- flow path
- axis
- helical flow
- power transmission
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/14—Control of the alternation between or the operation of exhaust drive and other drive of a pump, e.g. dependent on speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses a kind of turbocharging structures, including：Air compressor is fitted on axis；Turbine, series connection is formed with 2~3 grades of turbine structures, every grade of turbine, which is equipped with, selectively drains into exhaust outlet or junior's turbine air-intake for gas, and every grade of turbine is supported by independent axis, is connected between every grade of turbine wheel shaft by the way that the power transmission that power transmitting connects or disconnects may be selected.The purpose of the present invention is to provide a kind of turbocharging structure and its control method, the device of this turbocharging structure can have turbine not at the same level in different engine, to make full use of the energy of motive discharge tail gas.
Description
Technical field
The invention belongs to turbocharging technology fields, specifically, being related to a kind of turbocharging structure and its control method.
Background technique
The energy and problem of environmental pollution are one of the significant problems that the world today faces, and the energy is modern society and life
Material base, as world population and economic increase sharply, the consumption of the energy is sharply increased, and environmental pollution is caused constantly to add
It is acute.
Turbocharging technology can be improved the air inflow of engine, improve the efficiency of combustion of engine, carry out again to tail gas
It utilizes.But existing turbocharged engine is substantially a turbine structure, this turbine will adapt to different engines and turn
Speed, so that turbine is difficult to drive when engine speed is lower, and when engine speed is higher, power that turbine generates
Weak problem.
Summary of the invention
The purpose of the present invention is to provide a kind of turbocharging structure and its control method, the dress of this turbocharging structure
Turbine not at the same level can be had in different engine by setting, to make full use of the energy of motive discharge tail gas.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution：
Turbocharging structure of the invention, including：
Air compressor is fitted on axis；
Turbine, series connection are formed with 2~3 grades of turbine structures, every grade of turbine be equipped with selectively by gas drain into exhaust outlet or
Junior's turbine air-intake, every grade of turbine are supported by independent axis, by the way that power transmitting connection may be selected between every grade of turbine wheel shaft
Or the power transmission connection disconnected；The grate flow channel of every grade of turbine be equipped with control exhaust flow to exhaust outlet or junior's turbine into
The control valve of port；The power transmission is electromagnetic type shaft coupling.
Turbocharging structure of the invention is equipped with cooling dress on the turbine wheel shaft between electromagnetic type shaft coupling and turbine
Set, the cooling device include outside the power transmission by heat insulating material texture at heat shield.
Turbocharging structure of the invention, the heat shield include multiple thermal insulation layers for being successively overlapped installation, thermal insulation layer it
Between be formed with the heat-insulation chamber of vacuum or air layer, the heat shield and axis are coupled face and are equipped with spiral along axis axial direction
Runner is connected with cooling medium in helical flow path, and the structure for forming coolant flow channel includes being made of close to turbine side heat-insulated material
The first helical flow path body, between the first helical flow path body and axis be equipped with rubber bodies, the structure for forming coolant flow channel further includes leaning on
The second helical flow path body that nearly power transmission is made of PTFE material, the second helical flow path body and the first helical flow path body phase
The import of connection, helical flow path is set on the second helical flow path body, and outlet is set on the first helical flow path body, the heat shield
Inner wall is equipped with several cooling chambers for being connected with cooling medium, and the cooling chamber be connected to helical flow path respectively, equipped with medium entrance and
Outlet.
Turbocharging structure of the invention is additionally provided on axis and is made of insulation shaft part, the heat shield thermal insulation ceramics material
Helical flow path be fitted to insulation shaft part on, the insulation shaft part is connect with axis by welding manner.
Turbocharging structure of the invention, the axis be ceramic material constitute Adiabatic axle, the helical flow path of heat shield with
Ceramic shaft is coupled.
The position that turbocharging structure of the invention, axis and helical flow path are coupled is equipped at least two metal material textures
At axle sleeve, the gap of 2~5mm is equipped between the axle sleeve, axle sleeve and axis coaxial line are installed.
Turbocharging structure of the invention is also fitted with the tachometric survey for measuring engine speed on engine
Instrument, tachometer of measuring are connect with controller, and controller is connect with control valve and power transmission respectively, are additionally provided in heat shield
Temperature sensor connected to the controller.
Turbocharging structure of the invention is also equipped with motor-by power transmission on the axis of the turbine side
The dual-purpose machine of generator.
Using the control method of above-mentioned turbocharging structure, including above step：
Step 1, the revolving speed of engine is measured by rotational speed detector, and the data measured are sent to controller；
Step 2 controls the power transmission connection between each turbine, control if engine speed is less than setting value k1
The dual-purpose machine drive shaft turns of electric motor-generator, the control valve controlled between each turbine is closed, to turn with engine-driven air compressor
It is dynamic, control the air inflow of engine；If engine speed is greater than the set value k1, be less than setting value k2 when, control each turbine it
Between power transmission disconnect, the control valve between each turbine is closed；If engine speed is greater than k2, when being less than k3, control
The control valve made between the first turbine and the second turbine is opened, the power transmitting between the first turbine and the second turbine
Device connection, so that air compressor obtains enough power, from air compressor side to the last one turbine
It is followed successively by the first turbine, the second turbine and third turbine；When engine speed is greater than k3, air input of engine by air is insufficient
When, the control valve controlled between the second turbine and third turbine is opened, dynamic between the second turbine and third turbine
Force transfering device connection controls between third turbine and the dual-purpose machine of electric motor-generator after reaching the air inflow of engine
Power transmission connection, electric motor-generator is used as generator at this time.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
1, by taking different turbine series in different engine speed, so that the energy of motor exhaust is converted
More efficient for the driving force of air compressor, the heat shield being equipped with enables to the temperature of power transmission not too high；
2, by the control method of this turbocharging structure, the cooperation of the turbocharging structure and engine, and root can be controlled
Different working conditions is made according to the revolving speed of different engines, to improve the response speed of engine and improve the combustion of engine
Burn efficiency, the torque of engine with supercharger.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
The a part of attached drawing as the application, for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings：
Fig. 1 is the electric turbocharger general structure schematic diagram；
Fig. 2 is the installation diagram of cooling device and axis；
Fig. 3 is the structure chart of heat shield and axis cooperation position.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one：
Turbocharging structure as shown in Figure 1 to Figure 3, including：Air compressor 1 is fitted on axis 2；Turbine 3, string
Connection is formed with 2~3 grades of turbine structures, or more stages, the present embodiment are preferably three-stage turbine structure, and every grade of turbine is all provided with
Having and gas is selectively drained into exhaust outlet 31 or junior's turbine air-intake 32, every grade of turbine is supported by independent axis, and every grade
It is connected between turbine wheel shaft by the way that the power transmission 4 that power transmitting connects or disconnects may be selected；The grate flow channel of every grade of turbine
The control valve 33 of exhaust outlet 31 or junior's turbine air-intake 32 is flowed to equipped with control exhaust, control valve 33 can be triple valve, i.e.,
Control gas leads to exhaust outlet or junior's turbine air-intake 32；The power transmission 4 is electromagnetic type shaft coupling, electromagnetic type connection
Axis device selects electromagnetic type shaft coupling resistant to high temperature, and electromagnetic coupling has response fast, and contactless connection, structure is reliable, the service life
It is long.
Cooling device 5 is installed, the cooling device 5 includes on the turbine wheel shaft between electromagnetic type shaft coupling and turbine
Outside power transmission by heat insulating material texture at heat shield 51, heat shield 51 is divided to for two valves, is easily installed.It is described every
Heat cover 51 includes multiple thermal insulation layer 51a for being successively overlapped installation, and the heat-insulation chamber of vacuum or air layer is formed between thermal insulation layer 51a
51b, preferably vacuum layer, vacuum layer heat insulation is more preferable, and the heat shield 51 is coupled face with axis and is equipped with along axis axial direction
The helical flow path 51c in direction is connected with cooling medium in helical flow path, formed coolant flow channel structure include close to turbine side by
The first helical flow path body 51d that heat-insulated material is constituted is equipped with rubber bodies 51e, rubber bodies between the first helical flow path body 51d and axis
For 51e to sealing is formed between the first helical flow path body 51d and axle sleeve, the structure for forming coolant flow channel further includes transmitting close to power
The second helical flow path the body 51f, the second helical flow path body 51f and the first helical flow path body 51d phase that device is made of PTFE material
The import of connection, helical flow path 51c is set on the second helical flow path body 51f, and outlet is set on the first helical flow path body 51d, institute
State heat shield 51 inner wall be equipped with several cooling chamber 51d, the cooling chamber 51d for being connected with cooling medium respectively with helical flow path
51c connection, is equipped with medium entrance and outlet.It can guarantee that the environment temperature of power transmission 4 is suitable by above-mentioned heat shield
Preferably.The mode for taking away heat is to enter cooling chamber 51d in heat shield by fluid, then partly or entirely flow to the second spiral flow
Road body 51f and the first helical flow path body 51d, is flowing to cooling chamber and its outlet.In order to the transmitting of more efficient absorption power
The heat of 4 position of device, by the way that 51 inner wall of heat shield is set as copper or aluminium material.It is found that cooling dress when implementing from technical staff
Set 5 includes coolant liquid and outer loop pipeline certainly.
It is additionally provided on axis 2 and is made of insulation shaft part 21 thermal insulation ceramics material, the helical flow path of the heat shield 51 cooperates peace
On insulation shaft part 21, the insulation shaft part 21 is connect with axis by welding manner, and welding for china with metal has been existing
Technology.
Another structure of axis is that the axis 2 is the Adiabatic axle that ceramic material is constituted, and axis 2 is complete ceramic material composition,
But it should be able to bear high temperature and mechanical shock, and helical flow path and the ceramic shaft of heat shield 51 are coupled.
The position that axis 2 and helical flow path are coupled is equipped with the axle sleeve 22 that at least two metal materials are constituted, the axle sleeve
The gap of 2~5mm is equipped between 22, axle sleeve and axis coaxial line are installed.It can be formed reliably with heat shield by the axle sleeve being equipped with
Sealing.
The tachometer of measuring for measuring engine speed, tachometer of measuring and controller are also fitted on engine
Connection, controller are connect with control valve 33 and power transmission 4 respectively, and temperature connected to the controller is additionally provided in heat shield 51
Spend sensor.
The dual-purpose machine of electric motor-generator is also equipped with by power transmission 4 on the axis of the turbine side, preferably,
The dual-purpose machine of electric motor-generator.
Using the control method of above-mentioned turbocharging structure, including above step：
Step 1, the revolving speed of engine is measured by rotational speed detector, and the data measured are sent to controller；
Step 2, if engine speed is less than setting value k1, the power transmission 4 controlled between each turbine is connected, control
The dual-purpose machine drive shaft turns of electric motor-generator 6 processed, the control valve controlled between each turbine is closed, so that air be driven to compress
Machine rotation, controls the air inflow of engine；If engine speed is greater than the set value k1, when being less than setting value k2, each turbine is controlled
Power transmission 4 between machine disconnects, and the control valve between each turbine is closed；If engine speed is greater than k2, it is less than k3
When, the control valve controlled between the first turbine and the second turbine is opened, dynamic between the first turbine and the second turbine
Force transfering device 4 connects so that air compressor obtains enough power, from air compressor side to the last one
Turbine is followed successively by the first turbine 3a, the second turbine 3b and third turbine 3c；When engine speed is greater than k3, start
When machine deficiency of air, the control valve controlled between the second turbine and third turbine is opened, the second turbine and third whirlpool
Power transmission 4 between turbine connects, after reaching the air inflow of engine, control third turbine and motor-power generation
Power transmission 4 between the dual-purpose machine of machine connects, and electric motor-generator is used as generator at this time.Wherein, k1 be 800~
1500r/min, k2 be 1500~3000r/min, k3 be 3000~5000r/min, the value be with reference to value, can be according to difference
Engine and running parameter.
By the control method of above-mentioned turbocharging structure, hair can be improved convenient for controlling the turbo charged work
The response speed of motivation provides sufficient air inflow for engine, so that the intake efficiency of engine is improved, in engine speed
Gao Shi, multistage turbine work, to improve the utilization efficiency to tail gas.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of turbocharging structure, which is characterized in that including：
Air compressor（1）, it is fitted to axis（2）On；
Turbine（3）, connect and be formed with 2~3 grades of turbine structures, every grade of turbine, which is equipped with, selectively drains into exhaust outlet for gas
（31）Or junior's turbine air-intake（32）, every grade of turbine is supported by independent axis, dynamic by may be selected between every grade of turbine wheel shaft
Power transmits the power transmission connected or disconnected（4）Connection；The grate flow channel of every grade of turbine is equipped with control exhaust flow direction exhaust
Mouthful（31）Or junior's turbine air-intake（32）Control valve（33）；The power transmission（4）For electromagnetic type shaft coupling.
2. turbocharging structure according to claim 1, which is characterized in that between electromagnetic type shaft coupling and turbine
Cooling device is installed on turbine wheel shaft（5）, the cooling device（5）Including be set to power transmission outside by heat insulating material texture
At heat shield（51）.
3. turbocharging structure according to claim 2, which is characterized in that the heat shield（51）It is successively weighed including multiple
The thermal insulation layer of folded installation（51a）, thermal insulation layer（51a）Between be formed with the heat-insulation chamber of vacuum or air layer（51b）, the heat shield
（51）Face is coupled equipped with the helical flow path along axis axial direction with axis（51c）, cooling medium, shape are connected in helical flow path
Structure at coolant flow channel includes the first helical flow path body being made of close to turbine side heat-insulated material（51d）, the first spiral
Runner body（51d）Packed rubber bodies are set between axis（51e）, the structure for forming coolant flow channel further includes transmitting close to power
The second helical flow path body that device is made of PTFE material（51f）, the second helical flow path body（51f）With the first helical flow path body
（51d）It is connected, helical flow path（51c）Import be set to the second helical flow path body（51f）On, outlet is set to the first helical flow path
Body（51d）On, the heat shield（51）Inner wall be equipped with several cooling chambers for being connected with cooling medium（51d）, the cooling chamber
（51d）Respectively with helical flow path（51c）Connection is equipped with medium entrance and outlet.
4. turbocharging structure according to claim 3, which is characterized in that axis（2）On be additionally provided with by thermal insulation ceramics material
Constitute insulation shaft part（21）, the heat shield（51）Helical flow path be fitted to insulation shaft part（21）On, the Adiabatic axle
Section（21）It is connect with axis by welding manner.
5. turbocharging structure according to claim 4, which is characterized in that the axis（2）It is constituted for ceramic material exhausted
Hot axis, heat shield（51）Helical flow path be coupled with ceramic shaft.
6. turbocharging structure according to claim 4 or 5, which is characterized in that axis（2）It is coupled with helical flow path
Position is equipped with the axle sleeve that at least two metal materials are constituted（22）, the axle sleeve（22）Between be equipped with 2~5mm gap, axle sleeve
It is installed with axis coaxial line.
7. turbocharging structure according to claim 5 or 6, which is characterized in that be also fitted with and be used on engine
Measure the tachometer of measuring of engine speed, tachometer of measuring connect with controller, controller respectively with control valve（33）And it is dynamic
Force transfering device（4）Connection, heat shield（51）Inside it is additionally provided with temperature sensor connected to the controller.
8. turbocharging structure according to claim 7, which is characterized in that also pass through power on the axis of the turbine side
Transfer device（4）The dual-purpose machine of electric motor-generator is installed.
9. the control method of turbocharging structure described in one of -8 according to claim 1, which is characterized in that including walking above
Suddenly：
Step 1, the revolving speed of engine is measured by rotational speed detector, and the data measured are sent to controller；
Step 2 controls the power transmission between each turbine if engine speed is less than setting value k1（4）Connection,
The dual-purpose machine drive shaft turns of electric motor-generator are controlled, the control valve controlled between each turbine is closed, so that air be driven to compress
Machine rotation, controls the air inflow of engine；If engine speed is greater than the set value k1, when being less than setting value k2, each turbine is controlled
Power transmission between machine（4）It disconnects, the control valve between each turbine is closed；If engine speed is greater than k2, it is less than
When k3, the control valve controlled between the first turbine and the second turbine is opened, between the first turbine and the second turbine
Power transmission（4）Connection, so that air compressor obtains enough power；When engine speed is greater than k3
When, when air input of engine by air deficiency, the control valve controlled between the second turbine and third turbine is opened, the second turbine with
Power transmission between third turbine（4）Connection, after reaching the air inflow of engine, control third turbine and electricity
Power transmission between the dual-purpose machine of machine-generator（4）Connection, electric motor-generator is used as generator at this time.
10. the control method of turbocharging structure according to claim 9, which is characterized in that work as heat shield（51）Interior
Temperature sensor, which measures the cooling medium flowing speed controlled in heat shield when the temperature is excessively high, to be accelerated.
Priority Applications (1)
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| CN201810645595.4A CN108825360B (en) | 2018-06-21 | 2018-06-21 | A kind of turbocharging structure and its control method |
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| CN201810645595.4A CN108825360B (en) | 2018-06-21 | 2018-06-21 | A kind of turbocharging structure and its control method |
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| CN108825360A true CN108825360A (en) | 2018-11-16 |
| CN108825360B CN108825360B (en) | 2019-09-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364717A (en) * | 1978-07-03 | 1982-12-21 | Barmag Barmer Maschinenfabrik Ag | Exhaust gas turbocharger |
| CN102444464A (en) * | 2011-11-03 | 2012-05-09 | 上海交通大学 | Twin-turbine single-voltage turbine supercharging system |
| CN102606285A (en) * | 2012-04-07 | 2012-07-25 | 潍坊富源增压器有限公司 | Turbocharger with two-stage supercharging function |
| GB2523669A (en) * | 2015-02-26 | 2015-09-02 | Daimler Ag | Turbocharger device and fuel cell system with a turbocharger device |
| GB2526090A (en) * | 2014-05-12 | 2015-11-18 | Cummins Ltd | Turbine generator |
| CN107387217A (en) * | 2017-07-31 | 2017-11-24 | 中国船舶重工集团公司第七研究所 | Power turbine TRT |
-
2018
- 2018-06-21 CN CN201810645595.4A patent/CN108825360B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364717A (en) * | 1978-07-03 | 1982-12-21 | Barmag Barmer Maschinenfabrik Ag | Exhaust gas turbocharger |
| CN102444464A (en) * | 2011-11-03 | 2012-05-09 | 上海交通大学 | Twin-turbine single-voltage turbine supercharging system |
| CN102606285A (en) * | 2012-04-07 | 2012-07-25 | 潍坊富源增压器有限公司 | Turbocharger with two-stage supercharging function |
| GB2526090A (en) * | 2014-05-12 | 2015-11-18 | Cummins Ltd | Turbine generator |
| GB2523669A (en) * | 2015-02-26 | 2015-09-02 | Daimler Ag | Turbocharger device and fuel cell system with a turbocharger device |
| CN107387217A (en) * | 2017-07-31 | 2017-11-24 | 中国船舶重工集团公司第七研究所 | Power turbine TRT |
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| Publication number | Publication date |
|---|---|
| CN108825360B (en) | 2019-09-03 |
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Effective date of registration: 20221214 Address after: 256623 Room 427, West Annex Building, Gaochuang Center Office Building, the intersection of Gaoshi Road and Xinwu Road, Xiaoying Office, High tech Zone, Binzhou City, Shandong Province Patentee after: Binzhou High tech High end Equipment Manufacturing Industrial Park Co.,Ltd. Address before: No.21, Yueqing Road, Zhuangyuan street, Longwan District, Wenzhou City, Zhejiang Province 325011 Patentee before: WENZHOU YINUOWEITE TECHNOLOGY CO.,LTD. |