[go: up one dir, main page]

CN106560597B - Fan assembly - Google Patents

Fan assembly Download PDF

Info

Publication number
CN106560597B
CN106560597B CN201610302720.2A CN201610302720A CN106560597B CN 106560597 B CN106560597 B CN 106560597B CN 201610302720 A CN201610302720 A CN 201610302720A CN 106560597 B CN106560597 B CN 106560597B
Authority
CN
China
Prior art keywords
solar
fan
lunar halo
tail ring
gap
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.)
Active
Application number
CN201610302720.2A
Other languages
Chinese (zh)
Other versions
CN106560597A (en
Inventor
刘春蕾
汪三龙
王欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu XCMG Guozhong Laboratory Technology Co Ltd
Original Assignee
Construction Machinery Branch of XCMG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Construction Machinery Branch of XCMG filed Critical Construction Machinery Branch of XCMG
Priority to CN201610302720.2A priority Critical patent/CN106560597B/en
Publication of CN106560597A publication Critical patent/CN106560597A/en
Application granted granted Critical
Publication of CN106560597B publication Critical patent/CN106560597B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00Pumping cooling-air or liquid coolants
    • F01P5/02Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/642Mounting; Assembling; Disassembling of axial pumps by adjusting the clearances between rotary and stationary parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646Mounting or removal of fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00Applications
    • F01P2050/22Motor-cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a kind of fan assembly and vehicles.Fan assembly includes fan, tail ring and wind scooper, and fan includes blade, and the inner circumferential of the Ye Dingyu tail ring of blade is abutted and fixed, and tail ring can be rotatably set relative to wind scooper.The inner circumferential of the Ye Dingyu tail ring of blade is abutted and is fixed so that the blade tip clearance between blade and tail ring is zero, is reduced the leakage stream near leaf top, is improved the working efficiency of fan assembly.Tail ring can be rotatably set relative to wind scooper so that tail ring and blade are freely rotated relative to wind scooper.Therefore, the fan assembly of the embodiment of the present invention can also improve the problem of movement interference between fan and wind scooper on the basis of preferably can guarantee working efficiency.

Description

Fan assembly
Technical field
The present invention relates to vehicular field, in particular to a kind of fan assembly and vehicle.
Background technique
The fan and engine of the fan assembly of vehicle in the prior art are rigidly connected, and wind scooper rigidly connects with radiator It connects, the solar or lunar halo of wind scooper is located at the radial outside of fan.To prevent the solar or lunar halo of fan and wind scooper from occurring during the work time Interfere, gap is equipped between the solar or lunar halo of the Ye Dingyu wind scooper of fan.
But between the solar or lunar halo of Ye Dingyu wind scooper near existing blade tip clearance, between pressure face and suction surface Pressure difference can generate leakage stream, be mutually mixed with mainstream, influence fan interior flow field and aeroperformance, and then will affect fan Working efficiency.In addition, leakage stream can generate leakage vortex, and then it will increase the work noise of fan assembly.
Therefore there are ineffective problems for the fan assembly of vehicle in the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of fan assembly and vehicles, so that fan assembly can be improved fan assembly Working efficiency.
First aspect present invention provides a kind of fan assembly, including fan, tail ring and wind scooper, and fan includes blade, leaf The inner circumferential of the Ye Dingyu tail ring of piece is abutted and is fixed, and tail ring can be rotatably set relative to wind scooper.
Further, there is gap between tail ring and wind scooper.
Further, tail ring includes annular body and the first solar or lunar halo for being connected in annular body, and wind scooper includes fan housing Main body and the second solar or lunar halo being connected in fan housing main body, the inner circumferential of Ye Dingyu annular body are abutted and are fixed, and gap is located at first Between solar or lunar halo and the second solar or lunar halo.
Further, the first solar or lunar halo includes the first annular of the radial outside set on close wind scooper one end of annular body Flange, fan housing main body include the circular open with the coaxial arrangement of tail ring, and the second solar or lunar halo includes the radially inner side set on circular open The second annular flange.
Further, the radial outside of first annular flange is equipped with first annular groove, and the second annular flange is set to first In annular groove;Alternatively, the radially inner side of the second annular flange is equipped with second annular groove, first annular flange is set to the second ring In connected in star.
Further, first annular flange the fan the separate blade for being located axially at the second annular flange one Side, the radius of the outer circle of first annular flange are greater than the radius of the inner circle of the second annular flange, and gap is located at first annular flange And second between the opposite side of annular flange.
Further, the surface for forming gap with the second solar or lunar halo of the first solar or lunar halo is wearing face;And/or second solar or lunar halo With the first solar or lunar halo formed gap surface be wearing face.
Further, the surface for forming gap with the second solar or lunar halo of the first solar or lunar halo is made of rubber material;And/or second The surface for forming gap with the first solar or lunar halo of solar or lunar halo is made of rubber material.
Further, the first solar or lunar halo and annular body are detachably connected;And/or second solar or lunar halo and fan housing main body it is removable It connects with unloading.
Further, gap is 0~2mm.
Second aspect of the present invention provides a kind of vehicle, including engine, cooling fan and radiator, and cooling fan is this hair The fan assembly that bright first aspect provides, fan are connect with engine, and wind scooper is connect with radiator.
Based on fan assembly provided by the invention and vehicle, fan assembly includes that fan, tail ring and wind scooper, fan include The inner circumferential of blade, the Ye Dingyu tail ring of blade is abutted and is fixed, and tail ring can be rotatably set relative to wind scooper.The leaf top of blade It abuts and is fixed so that the blade tip clearance between blade and tail ring is zero with the inner circumferential of tail ring, reduce leakage stream, improve wind The working efficiency of fan device.Further, tail ring is can be rotatably set relative to wind scooper so that tail ring and blade are relative to leading Fan housing is freely rotated, and therefore, fan assembly of the invention can also improve wind on the basis of preferably can guarantee working efficiency The problem of fanning the movement interference between wind scooper.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its Advantage will become apparent.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the fan assembly of the embodiment of the present invention;
Fig. 2 is the decomposition texture schematic diagram of the fan assembly in Fig. 1;
Fig. 3 is the structural schematic diagram of the fan and tail ring in Fig. 1;
Fig. 4 is the structural schematic diagram of the tail ring in Fig. 1;
Fig. 5 is the structural schematic diagram of the wind scooper in Fig. 1;
Fig. 6 is the structural schematic diagram of the tail ring and wind scooper in Fig. 1.
Each appended drawing reference respectively represents:
11- fan;111- blade;12- tail ring;121- annular body;The first solar or lunar halo of 122-;13- wind scooper;131- fan housing Main body;The second solar or lunar halo of 132-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached It does not need that it is further discussed in figure.
As depicted in figs. 1 and 2, the fan assembly of the embodiment of the present invention includes fan 11, tail ring 12 and wind scooper 13.Such as figure Shown in 3, fan 11 includes blade 111.The inner circumferential of the Ye Dingyu tail ring 12 of blade 111 is abutted and is fixed.Tail ring 12 is relative to leading Fan housing 13 can be rotatably set.
The inner circumferential of the Ye Dingyu tail ring 12 of blade 111 is abutted and is fixed so that between leaf top between blade 111 and tail ring 12 Gap is zero, reduces leakage stream, improves the working efficiency of fan assembly.Further, tail ring 12 can relative to wind scooper 13 Rotationally setting is so that tail ring 12 and blade 111 are freely rotated relative to wind scooper 13, and therefore, the fan of the embodiment of the present invention fills Set the problem of can also improving the movement interference between fan and wind scooper on the basis of preferably can guarantee working efficiency.Separately Outside, the blade tip clearance between fan 11 and tail ring 12 is zero, reduces aerial drainage whirlpool, reduces noise.
The fixed form of blade 111 and tail ring 12 can have different form, such as welding, bonding, riveting etc., this implementation The leaf top of blade 111 is bonded in the inner circumferential of tail ring 12 by hot melt adhesive in example.
Preferably, there is gap between tail ring 12 and wind scooper 13.The setting can make between tail ring 12 and wind scooper 13 Relative motion do not interfere substantially.Preferably, the gap between tail ring 12 and wind scooper 13 is 0~2mm.
As shown in Figures 1 to 6, in the present embodiment, tail ring 12 includes annular body 121 and is connected in annular body 121 The first solar or lunar halo 122.Wind scooper 13 includes fan housing main body 131 and the second solar or lunar halo 132 being connected in fan housing main body 131.Fan The inner circumferential of 11 Ye Dingyu annular body 121 is abutted and is fixed.Gap is between the first solar or lunar halo 122 and the second solar or lunar halo 132.Tail Ring 12 passes through the gap being equipped between the first solar or lunar halo 122 and the second solar or lunar halo 132 can be rotatably set relative to wind scooper 13, and first Gap between solar or lunar halo 122 and the second solar or lunar halo 132 is conducive to guarantee that tail ring 12 and blade 111 are freely rotated relative to wind scooper 13.
Specifically in the present embodiment, as shown in figure 4, the first solar or lunar halo 122 includes the close wind scooper set on annular body 121 The first annular flange of the radial outside of 13 one end.As shown in figure 5, fan housing main body 131 includes the circle being coaxially disposed with tail ring 12 Shape opening.Second solar or lunar halo 132 includes the second annular flange of the radially inner side set on the circular open.
As shown in fig. 6, the separate blade 111 that is located axially at second annular flange of the first annular flange in fan 11 Side.The radius of the outer circle of first annular flange is greater than the radius of the inner circle of the second annular flange, first annular flange and second There is gap between the opposite side of annular flange.The radius of the outer circle of first annular flange is greater than the interior of the second annular flange Round radius, and first annular flange is located at the side of the separate blade 111 of the second annular flange, so that tail ring 12 is in the axial direction It is blocked by the second annular flange, without departing from wind scooper 13, and the gap between first annular flange and the second annular flange Conducive to ensure that tail ring 12 is freely rotated with blade 111 relative to wind scooper 13.
In a unshowned embodiment of attached drawing, it can be equipped in the radial outside of first annular flange first annular recessed Slot, and it is set to the second annular flange in first annular groove;Alternatively, the side of the radially inner side of the second annular flange can be made Equipped with second annular groove, and it is set to first annular flange in second annular groove.By taking the latter as an example, first annular flange is set In making first annular flange and the second annular flange have gap, 12 He of tail ring on axially and radially in second annular groove Blade 111 is freely rotated relative to wind scooper 13, and the cell wall of second annular groove can limit first annular flange in axis Upward movement.
In the relative rotational motion of the first solar or lunar halo 122 and the second solar or lunar halo 132, the first solar or lunar halo 122 and 132 shape of the second solar or lunar halo Abrasion can be generated at the surface in gap.Therefore the surface for forming gap with the second solar or lunar halo 132 of the first solar or lunar halo 122 is set as wear-resisting Surface, the second solar or lunar halo 132 with the first solar or lunar halo 122 formed gap surface be set as wearing face.
In the present embodiment, the surface for forming gap with the second solar or lunar halo 132 of the first solar or lunar halo 122 is made of rubber material.The The surface for forming gap with the first solar or lunar halo 122 of two solar or lunar halo 132 is made of rubber material.First solar or lunar halo 122 and the second solar or lunar halo 132 It can be part to be made of rubber material, can also be all made of rubber material.
Preferably, the first solar or lunar halo 122 and annular body 121 are detachably connected.Second solar or lunar halo 132 and fan housing main body 131 It is detachably connected.Since the relative rotation between the first solar or lunar halo 122 and the second solar or lunar halo 132 can bring abrasion, removably set It sets so that the first solar or lunar halo 122 and the second solar or lunar halo 132 are conveniently replaceable.
Preferably, the fan housing main body 131 in above embodiments is metalwork.Annular body 121 is plastic part.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof;To the greatest extent The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced;Without departing from this hair The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.

Claims (6)

1. a kind of fan assembly, which is characterized in that including fan (11), tail ring (12) and wind scooper (13), the fan (11) Including blade (111), the inner circumferential of tail ring (12) described in the Ye Dingyu of the blade (111) is abutted and is fixed, the tail ring (12) It can be rotatably set relative to the wind scooper (13);There is gap between the tail ring (12) and the wind scooper (13);Institute Stating tail ring (12) includes annular body (121) and the first solar or lunar halo (122) being connected on the annular body (121), described to lead Fan housing (13) includes fan housing main body (131) and the second solar or lunar halo (132) for being connected on the fan housing main body (131), the leaf top It abuts and fixes with the inner circumferential of the annular body (121), the gap is located at first solar or lunar halo (122) and second wind It encloses between (132);First solar or lunar halo (122) includes set on the annular body (121) close to the wind scooper (13) one The first annular flange of the radial outside at end, the fan housing main body (131) include the circle with the tail ring (12) coaxial arrangement Opening, second solar or lunar halo (132) include the second annular flange of the radially inner side set on the circular open;First ring Shape flange is in the side far from the blade (111) for being located axially at second annular flange of the fan (11), institute State the outer circle of first annular flange radius be greater than second annular flange inner circle radius, the gap is located at described the Between one annular flange and the opposite side of second annular flange.
2. fan assembly according to claim 1, which is characterized in that first solar or lunar halo (122) with second wind Enclosing (132) and forming the surface in the gap is wearing face;And/or second solar or lunar halo (132) with first solar or lunar halo (122) surface for forming the gap is wearing face.
3. fan assembly according to claim 1, which is characterized in that (122) of first solar or lunar halo and second wind The surface that circle (132) forms the gap is made of rubber material;And/or second solar or lunar halo (132) with first wind The surface that circle (122) forms the gap is made of rubber material.
4. fan assembly according to claim 1, which is characterized in that first solar or lunar halo (122) and the annular body (121) detachably connected;And/or second solar or lunar halo (132) and the fan housing main body (131) it is detachably connected.
5. fan assembly according to any one of claim 1 to 4, which is characterized in that the gap is 0~2mm.
6. a kind of vehicle, including engine, cooling fan and radiator, which is characterized in that the cooling fan is as right is wanted Fan assembly described in asking any one of 1 to 5, the fan (11) are connected with the engine, the wind scooper (13) and institute State radiator connection.
CN201610302720.2A 2016-05-10 2016-05-10 Fan assembly Active CN106560597B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610302720.2A CN106560597B (en) 2016-05-10 2016-05-10 Fan assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610302720.2A CN106560597B (en) 2016-05-10 2016-05-10 Fan assembly

Publications (2)

Publication Number Publication Date
CN106560597A CN106560597A (en) 2017-04-12
CN106560597B true CN106560597B (en) 2019-09-24

Family

ID=58485574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610302720.2A Active CN106560597B (en) 2016-05-10 2016-05-10 Fan assembly

Country Status (1)

Country Link
CN (1) CN106560597B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106468289A (en) * 2016-06-28 2017-03-01 徐工集团工程机械有限公司 Wind scooper, electromotor and engineering truck
CN110685789B (en) * 2019-10-12 2021-02-05 江苏徐工工程机械研究院有限公司 Cooling system, engineering vehicle, control method and controller
CN115450951A (en) * 2022-09-16 2022-12-09 华为数字能源技术有限公司 Fan and air conditioner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413480A (en) * 2008-11-18 2009-04-22 广州红鹰能源科技有限公司 Flexible outer ring type wind power generator
CN201560834U (en) * 2009-10-19 2010-08-25 天津雷沃动力股份有限公司 Installation structure of cooling fan of engine
CN103307026A (en) * 2013-06-21 2013-09-18 江苏富丽华通用设备有限公司 Fixing structure of axial fan blades
CN204783776U (en) * 2015-06-02 2015-11-18 上海柴油机股份有限公司 Diesel engine fan protects solar or lunar halo
CN105386993A (en) * 2014-08-26 2016-03-09 凯斯纽荷兰(中国)管理有限公司 Fan assembly with shroud wear ring for work vehicle
CN205744106U (en) * 2016-05-10 2016-11-30 徐工集团工程机械有限公司 Fan assembly and vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413480A (en) * 2008-11-18 2009-04-22 广州红鹰能源科技有限公司 Flexible outer ring type wind power generator
CN201560834U (en) * 2009-10-19 2010-08-25 天津雷沃动力股份有限公司 Installation structure of cooling fan of engine
CN103307026A (en) * 2013-06-21 2013-09-18 江苏富丽华通用设备有限公司 Fixing structure of axial fan blades
CN105386993A (en) * 2014-08-26 2016-03-09 凯斯纽荷兰(中国)管理有限公司 Fan assembly with shroud wear ring for work vehicle
CN204783776U (en) * 2015-06-02 2015-11-18 上海柴油机股份有限公司 Diesel engine fan protects solar or lunar halo
CN205744106U (en) * 2016-05-10 2016-11-30 徐工集团工程机械有限公司 Fan assembly and vehicle

Also Published As

Publication number Publication date
CN106560597A (en) 2017-04-12

Similar Documents

Publication Publication Date Title
CN106560597B (en) Fan assembly
KR101767505B1 (en) Centrifugal fan
CN205695706U (en) Electronic cigarette and nebulizer thereof
JP6920852B2 (en) Centrifugal compressor impeller and electric centrifugal compressor
CN105317746A (en) Centrifugal compressor
CN204880627U (en) Guide ring assembly, axial flow fan and air conditioner
US10215188B2 (en) Blower
CN104806560B (en) Sealing part and centrifugal compressor
CN105518307A (en) Centrifugal rotor
CN106460867B (en) Centrifugal blower and electric dust collector
CA2940270C (en) Blower fan with blade ring
CN103244559A (en) Bushing type air bearing and main shaft device
CN107165862B (en) Wind wheel and refrigeration equipment with it
CN208831337U (en) Air inlet ring and volute for range hood and range hood
CN103967835A (en) Combined type fan and compressor with same
CN205744106U (en) Fan assembly and vehicle
CN105849419A (en) Impeller and rotating machine provided with same
CN107771250B (en) The system for controlling adjustable setting blade for turbogenerator
US20180051659A1 (en) Compressor system for a motor vehicle
CN203906380U (en) Combined type fan and compressor provided with fan
CN207920954U (en) Impeller, wind turbine and gas heater
CN204140487U (en) Backward centrifugal impeller and centrifugal fan
CN103307026A (en) Fixing structure of axial fan blades
CN203348159U (en) Fixing structure for vanes of axial fan
CN209050597U (en) A kind of main axle structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220712

Address after: 221004 Industrial Zone, Xuzhou Economic Development Zone, Jiangsu, China

Patentee after: Jiangsu XCMG Guozhong Laboratory Technology Co.,Ltd.

Address before: 221004 Industrial Zone, Xuzhou Economic Development Zone, Jiangsu, China

Patentee before: XCMG CONSTRUCTION MACHINERY Co.,Ltd.

CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 221004 26 Tuo Lan Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu

Patentee after: Jiangsu XCMG Guozhong Laboratory Technology Co.,Ltd.

Address before: 221004 Industrial Zone, Xuzhou Economic Development Zone, Jiangsu, China

Patentee before: Jiangsu XCMG Guozhong Laboratory Technology Co.,Ltd.