CN104632682A - Adjustable water-turbine generator set cooling fan and blade adjusting method thereof - Google Patents
Adjustable water-turbine generator set cooling fan and blade adjusting method thereof Download PDFInfo
- Publication number
- CN104632682A CN104632682A CN201510065972.3A CN201510065972A CN104632682A CN 104632682 A CN104632682 A CN 104632682A CN 201510065972 A CN201510065972 A CN 201510065972A CN 104632682 A CN104632682 A CN 104632682A
- Authority
- CN
- China
- Prior art keywords
- blade
- force
- operation arm
- pivot
- cooling fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses an adjustable water-turbine generator set cooling fan which comprises a fan center, blades, operating force arms, driving pins and synchronous operation rings. A pivot is arranged at one end of each blade, a plurality of first through holes are circumferentially formed in the fan center, the end of each pivot is connected with one end of the corresponding operating force arm through a cylindrical pin after the pivot penetrates the corresponding first through hole, and the other end of the operating force arm is connected with the corresponding synchronous operation ring through the corresponding driving pin. Special bearing bushes are arranged among the pivots and a shaft hole of the fan center to accurately position and decrease an operating torque, one end of each operating force arm is clamped on the pivot of the corresponding blade, mounting and adjusting are facilitated when reliable operations are ensured, the other end of the operating force arm is connected with the corresponding synchronous operation ring through the corresponding driving pin, the synchronous operation rings slightly move along the axis direction of a generator shaft to drive the operating force arms to rotate around axes of the pivot of the blades, and mounting angles of the blades are changed.
Description
Technical field
The present invention relates to a kind of cooling fan, particularly relate to a kind of adjustable turbine-generator units cooling fan and blade adjustments method thereof.
Background technique
The generator of turbine-generator units in running because the reason such as electromagnetism, mechanical friction produces a large amount of heat.The generation of heat causes the increase of machine packet size; uneven the causing of heat distribution produces larger thermal stress in rotor or stator; in frequent start-stop unit process, copper conductor is different with the temperature thermal expansion coefficient that outsourcing is insulated and cause fatigue, and then causes the destruction of insulation.The existence of heat not only reduces the efficiency of generator, and endangers stability and the Security of generator operation, shortens the working life of generator set.
The common generator type of cooling has air cooling, water-cooled and vapor cooling system.Air cooling utilizes the circulation of air in generator foundation ditch to realize the object of cooling, and some units install cooling fan forced ventilation to improve cooling effect in generator amature upper end or lower end, and this method structure is simple, reliable.
Current fan be according to maximum load and room temperature is summer day high temperature time required ventilation carry out designing, the laying angle of fan blade is comparatively large, and blade is welded on fan hub.Turbine-generator units usually bears peak-frequency regulation task, annual completely send out hour number to account for the proportion of the total hour number of whole year operation little, annual room temperature mean value is much smaller than summer day maximum temperature in addition, therefore there is excessive design redundancy in this fan, windage is large, and then have impact on the raising of generator set generating efficiency.
Summary of the invention
For overcoming defect and the deficiency of existing stator blade fan, the invention provides a kind of adjustable turbine-generator units cooling fan and blade adjustments method thereof, to improve the efficiency of generator set.
The technical solution adopted in the present invention is: a kind of adjustable turbine-generator units cooling fan, comprise fan hub, the blade be connected on fan hub, operation the arm of force, driving pin, simultaneously operating ring, described blade one end is provided with pivot, circumferentially having of described fan hub is some for the first through hole through pivot, described pivot is through after the first through hole, its end is connected by straight pin one end with the operation arm of force, and the other end of the described operation arm of force is connected with simultaneously operating ring by driving pin.
Preferably, described pivot is divided into three sections, be respectively blade positioning section, screw thread holding part, operation arm of force holding part, described blade positioning section is arranged with special type bearing shell, described screw thread holding part has screwed screwed retaining ring, and described operation arm of force holding part is fixedly connected with by straight pin one end with the operation arm of force.
Preferably, the uniform lug identical with blade number of described simultaneously operating ring circumferencial direction, each lug is provided with for the second through hole, the internal diameter of described second through hole and the external diameter interference fit of driving pin through driving pin.
Preferably, described first through hole is distributed on fan hub circumferentially, and its quantity is identical with blade number, and described special type bearing shell comprises path section and large footpath section, the internal diameter of described first through hole and the path section external diameter interference fit of special type bearing shell.
Preferably, the endoporus of described special type bearing shell and blade positioning section are Spielpassung, and described screwed retaining ring contacts with special type bearing shell but do not compress.
Preferably, described operation arm of force one end is provided with blade axis hole, and the wide gap of 2mm is opened in the side of blade axis hole, and described sharf borehole jack is on the operation arm of force holding part of pivot and located by straight pin, and the wide gap of described 2mm is compressed by a hexagon socket head cap screw.
Preferably, the described operation arm of force the other end has U-type groove mouth, slides when described driving pin moves up and down with simultaneously operating ring in U-type groove mouth, drives the operation arm of force to rotate.
A blade adjustments method for adjustable turbine-generator units cooling fan, comprises the steps:
1) when air quantity demand is large, simultaneously operating ring upwards moves along generator shaft, and driving pin one is the same to be moved, slide in the U-type groove mouth of the operation arm of force while driving pin moves, drive the operation arm of force to be rotated counterclockwise, and then band moving vane is rotated counterclockwise, make blade angle become large, increase air quantity;
2) when load is less or room temperature is lower, simultaneously operating ring, along generator shaft to moving down, reduces blade angle, reduces air quantity.
Fan design is become fabricated construction by the present invention, and blade adopts the mode removably connected to be arranged on fan hub, and fan hub is set on generator shaft.
Blade can rotate by axis pivotally, namely changes the setting angle of blade.When generator set runs, the setting angle of blade can be changed according to the operating load of reality, air temperature, under the prerequisite meeting the requirement of generator cooling air quantity, make the windage loss of fan reduce as much as possible, and then improve the on-road efficiency of generator set.
Special type bearing shell is set between pivot and fan hub axis hole accurately to locate and to reduce operational torque.Operation arm of force one end is held tightly on blade pivot, facilitates install and adjust under ensureing the reliable prerequisite of operation.The other end is connected by driving pin with simultaneously operating ring.Simultaneously operating ring moves along generator shaft axial direction by a small margin, drives the operation arm of force to rotate around blade pivot axis, and then realizes the change of blades installation angle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of fan centerbody of the present invention and simultaneously operating ring joint;
Fig. 3 is the structural representation of simultaneously operating ring;
Fig. 4 is the structural representation of blade;
Fig. 5 is the structural representation of fan hub;
Fig. 6 is the structural representation of special type bearing shell;
Fig. 7 is the structural representation of screwed retaining ring;
Fig. 8 is the structural representation of the operation arm of force;
Fig. 9 is the structural representation of driving pin.
In figure: 1. generator shaft, 2. simultaneously operating ring, 3. blade, 4. fan hub, 5. special type bearing shell, 6. screwed retaining ring, 7. hexagon socket head cap screw, 8. straight pin, 9. operate the arm of force; 10. driving pin, 11. blade positioning sections, 12. screw thread holding parts, 13. operation arm of force holding parts, 14. lugs, 15. second through holes, 16. first through holes, 17. path sections, 18. large footpath sections, 19.U type notch, 20. blade axis holes, the wide gap of 21.2mm.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As illustrated in fig. 1 and 2, a kind of adjustable turbine-generator units cooling fan, comprise fan hub 4, the blade 3 be connected on fan hub 4, operation the arm of force 9, driving pin 10, simultaneously operating ring 2, blade 3 one end is provided with pivot, circumferentially having of fan hub 4 is some for the first through hole 16 through pivot, pivot is through after the first through hole 16, its end is connected by a straight pin 8 one end with the operation arm of force 9, and the other end of the operation arm of force 9 is connected with simultaneously operating ring 2 by driving pin 10.Pivot is divided into three sections, be respectively blade positioning section 11, screw thread holding part 12, operation arm of force holding part 13, blade positioning section 11 is arranged with special type bearing shell 5, screw thread holding part 12 has screwed screwed retaining ring 6, operation arm of force holding part 13 is fixedly connected with by a straight pin 8 one end with the operation arm of force 9.The uniform lug 14 identical with blade 3 number of simultaneously operating ring 2 circumferencial direction, each lug 14 is provided with for through the internal diameter of the second through hole 15, second through hole 15 of driving pin 10 and the external diameter interference fit of driving pin 10.First through hole 16 is distributed on fan hub 4 circumferentially, and its quantity is identical with blade 3 number, and special type bearing shell 5 comprises the internal diameter of path section 17 and large footpath section 18, first through hole 16 and the path section 17 external diameter interference fit of special type bearing shell 5.Endoporus and the blade positioning section 11 of special type bearing shell 5 are Spielpassung, and screwed retaining ring 6 contacts with special type bearing shell 5 but do not compress.The operation arm of force 9 one end is provided with blade axis hole 20, and the wide gap 21 of 2mm is opened in the side of blade axis hole 20, and the operation arm of force holding part 13 that blade axis hole 20 is enclosed within pivot is located by straight pin 8, and the wide gap 21 of 2mm is compressed by a hexagon socket head cap screw 7.The operation arm of force 9 the other end has U-type groove mouth 19, slides when driving pin 10 moves up and down with simultaneously operating ring 2 in U-type groove mouth 19, drives the operation arm of force 9 to rotate.
A blade adjustments method for adjustable turbine-generator units cooling fan, comprises the steps:
1) when air quantity demand is large, simultaneously operating ring upwards moves along generator shaft, and driving pin one is the same to be moved, slide in the U-type groove mouth of the operation arm of force while driving pin moves, drive the operation arm of force to be rotated counterclockwise, and then band moving vane is rotated counterclockwise, make blade angle become large, increase air quantity;
2) when load is less or room temperature is lower, simultaneously operating ring, along generator shaft to moving down, reduces blade angle, reduces air quantity.
The present invention is when parts design, physical dimension and the number of blade is obtained according to Wind Coverage Calculation, in blade one end, pivot is set, pivot is divided into three sections, be respectively positioning section, screw thread fixed end, operation arm of force holding part, beat cylinder pin hole at operation arm of force holding part in addition, prevent operation arm of force play, as shown in Figure 4.
The uniform hole identical with blade number of simultaneously operating ring circumferencial direction, the internal diameter in its hole and the external diameter of driving pin are interference fit, as shown in Figure 3.
The uniform hole identical with blade number of fan hub circumferential direction, the external diameter in its hole and the external diameter of special type bearing shell are interference fit, as shown in Figure 5.
Special type bearing shell has two working surfaces, and its endoporus and blade positioning section are Spielpassung, makes blade can rotate around blade pivot axis, as shown in Figure 6 while accurate locating blade.
The inner screw thread of screwed retaining ring is connected with blade pivot, and screwed retaining ring contacts with special type bearing shell but do not compress, and is delivered in by the centrifugal force of blade on special type bearing shell, does not affect the rotation of blade, as shown in Figure 7 simultaneously.
There is blade axis hole operation arm of force one end, and the wide gap of 2mm is opened in the side in hole, and the operation arm of force the other end has U-type groove mouth, as shown in Figure 8.During installation, the operation arm of force to be enclosed within blade pivot and to adjust to the right place, then compressing the wide gap of 2mm with hexagon socket head cap screw, the operation arm of force and blade pivot are fixed.
When air quantity demand is large, simultaneously operating ring upwards moves along generator shaft, and driving pin one is the same to be moved.Slide in the U-type groove mouth of the operation arm of force while driving pin moves, drive the operation arm of force to be rotated counterclockwise (outwards being seen by generator shaft), and then band moving vane is rotated counterclockwise, make blade angle become large, increase air quantity.When load is less or room temperature is lower, simultaneously operating ring, along generator shaft to moving down, reduces blade angle, reduces air quantity.
Above content is the further description done the present invention in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple changes or replacement can also be made, all should be considered as belonging to the scope of patent protection that claims that the present invention submits to are determined.
Claims (8)
1. an adjustable turbine-generator units cooling fan, it is characterized in that: it comprises fan hub, the blade be connected on fan hub, operation the arm of force, driving pin, simultaneously operating ring, described blade one end is provided with pivot, circumferentially having of described fan hub is some for the first through hole through pivot, described pivot is through after the first through hole, its end is connected by straight pin one end with the operation arm of force, and the other end of the described operation arm of force is connected with simultaneously operating ring by driving pin.
2. the adjustable turbine-generator units cooling fan of one according to claim 1, it is characterized in that: described pivot is divided into three sections, be respectively blade positioning section, screw thread holding part, operation arm of force holding part, described blade positioning section is arranged with special type bearing shell, described screw thread holding part has screwed screwed retaining ring, and described operation arm of force holding part is fixedly connected with by straight pin one end with the operation arm of force.
3. the adjustable turbine-generator units cooling fan of one according to claim 1, it is characterized in that: the uniform lug identical with blade number of described simultaneously operating ring circumferencial direction, each lug is provided with for the second through hole, the internal diameter of described second through hole and the external diameter interference fit of driving pin through driving pin.
4. the adjustable turbine-generator units cooling fan of one according to claim 2, it is characterized in that: described first through hole is distributed on fan hub circumferentially, its quantity is identical with blade number, described special type bearing shell comprises path section and large footpath section, the internal diameter of described first through hole and the path section external diameter interference fit of special type bearing shell.
5. the adjustable turbine-generator units cooling fan of one according to claim 4, it is characterized in that: the endoporus of described special type bearing shell and blade positioning section are Spielpassung, described screwed retaining ring contacts with special type bearing shell but does not compress.
6. the adjustable turbine-generator units cooling fan of one according to claim 4, it is characterized in that: described operation arm of force one end is provided with blade axis hole, the wide gap of 2mm is opened in the side of blade axis hole, described sharf borehole jack is on the operation arm of force holding part of pivot and located by straight pin, and the wide gap of described 2mm is compressed by a hexagon socket head cap screw.
7. the adjustable turbine-generator units cooling fan of one according to claim 6, it is characterized in that: the described operation arm of force the other end has U-type groove mouth, slide in U-type groove mouth when described driving pin moves up and down with simultaneously operating ring, drive the operation arm of force to rotate.
8. the blade adjustments method of a kind of adjustable turbine-generator units cooling fan according to claim 7, is characterized in that: it comprises the steps:
1) when air quantity demand is large, simultaneously operating ring upwards moves along generator shaft, and driving pin one is the same to be moved, slide in the U-type groove mouth of the operation arm of force while driving pin moves, drive the operation arm of force to be rotated counterclockwise, and then band moving vane is rotated counterclockwise, make blade angle become large, increase air quantity;
2) when load is less or room temperature is lower, simultaneously operating ring, along generator shaft to moving down, reduces blade angle, reduces air quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065972.3A CN104632682B (en) | 2015-02-09 | 2015-02-09 | A kind of adjustable turbine-generator units cooling fan and blade adjustments method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065972.3A CN104632682B (en) | 2015-02-09 | 2015-02-09 | A kind of adjustable turbine-generator units cooling fan and blade adjustments method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104632682A true CN104632682A (en) | 2015-05-20 |
| CN104632682B CN104632682B (en) | 2016-06-01 |
Family
ID=53211798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510065972.3A Active CN104632682B (en) | 2015-02-09 | 2015-02-09 | A kind of adjustable turbine-generator units cooling fan and blade adjustments method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632682B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523420A (en) * | 2016-12-30 | 2017-03-22 | 潍柴动力股份有限公司 | Variable-angle fan and angle adjustment method thereof |
| CN107947469A (en) * | 2017-12-21 | 2018-04-20 | 盐城中德劲博机电有限责任公司 | Screw air compressor cooling structure |
| CN115773275A (en) * | 2022-12-23 | 2023-03-10 | 佳木斯电机股份有限公司 | Fan for synchronous motor test |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206411U (en) * | 1986-08-26 | 1987-04-29 | 沈阳风机厂 | Hermetically sealed primary synchronous regulating mechanism |
| EP0545750A1 (en) * | 1991-12-02 | 1993-06-09 | AEROSPATIALE Société Nationale Industrielle | Multiple blade variable pitch rotor, in particular for rear antitorque apparatus of a rotorcraft |
| CN1087159A (en) * | 1992-10-14 | 1994-05-25 | Abb.弗拉克特有限公司 | A kind of vane suspension device of adjustable angle |
| JP2009257142A (en) * | 2008-04-15 | 2009-11-05 | Panasonic Corp | Ceiling fan |
| WO2010101426A2 (en) * | 2009-03-05 | 2010-09-10 | 주식회사 에어젠 | Air compressor, and flow control method for an air compressor |
| EP2430291A1 (en) * | 2009-05-15 | 2012-03-21 | Snecma | Unducted propeller including variable pitch blades for a turbine engine |
| CN102840164A (en) * | 2012-09-27 | 2012-12-26 | 龙口市汽车风扇离合器厂 | Blade angle-adjustable impeller and fan clutch using same |
| CN103189602A (en) * | 2010-07-30 | 2013-07-03 | 涡轮梅坎公司 | Device for controlling pivoting blades of a turbine engine |
| CN103727062A (en) * | 2013-12-13 | 2014-04-16 | 湖北省风机厂有限公司 | Device for adjusting moving blades of axial flow fan |
| CN203670278U (en) * | 2013-09-22 | 2014-06-25 | 重庆双扬牌电器制造有限公司 | Fan with fan blade angle adjustable |
| CN204511938U (en) * | 2015-02-09 | 2015-07-29 | 浙江富春江水电设备有限公司 | A kind of adjustable turbine-generator units cooling fan |
-
2015
- 2015-02-09 CN CN201510065972.3A patent/CN104632682B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206411U (en) * | 1986-08-26 | 1987-04-29 | 沈阳风机厂 | Hermetically sealed primary synchronous regulating mechanism |
| EP0545750A1 (en) * | 1991-12-02 | 1993-06-09 | AEROSPATIALE Société Nationale Industrielle | Multiple blade variable pitch rotor, in particular for rear antitorque apparatus of a rotorcraft |
| CN1087159A (en) * | 1992-10-14 | 1994-05-25 | Abb.弗拉克特有限公司 | A kind of vane suspension device of adjustable angle |
| JP2009257142A (en) * | 2008-04-15 | 2009-11-05 | Panasonic Corp | Ceiling fan |
| WO2010101426A2 (en) * | 2009-03-05 | 2010-09-10 | 주식회사 에어젠 | Air compressor, and flow control method for an air compressor |
| WO2010101426A3 (en) * | 2009-03-05 | 2010-12-02 | 주식회사 에어젠 | Air compressor, and flow control method for an air compressor |
| EP2430291A1 (en) * | 2009-05-15 | 2012-03-21 | Snecma | Unducted propeller including variable pitch blades for a turbine engine |
| CN103189602A (en) * | 2010-07-30 | 2013-07-03 | 涡轮梅坎公司 | Device for controlling pivoting blades of a turbine engine |
| CN102840164A (en) * | 2012-09-27 | 2012-12-26 | 龙口市汽车风扇离合器厂 | Blade angle-adjustable impeller and fan clutch using same |
| CN203670278U (en) * | 2013-09-22 | 2014-06-25 | 重庆双扬牌电器制造有限公司 | Fan with fan blade angle adjustable |
| CN103727062A (en) * | 2013-12-13 | 2014-04-16 | 湖北省风机厂有限公司 | Device for adjusting moving blades of axial flow fan |
| CN204511938U (en) * | 2015-02-09 | 2015-07-29 | 浙江富春江水电设备有限公司 | A kind of adjustable turbine-generator units cooling fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523420A (en) * | 2016-12-30 | 2017-03-22 | 潍柴动力股份有限公司 | Variable-angle fan and angle adjustment method thereof |
| CN106523420B (en) * | 2016-12-30 | 2018-08-31 | 潍柴动力股份有限公司 | A kind of varied angle fan and its angle adjusting method |
| CN107947469A (en) * | 2017-12-21 | 2018-04-20 | 盐城中德劲博机电有限责任公司 | Screw air compressor cooling structure |
| CN115773275A (en) * | 2022-12-23 | 2023-03-10 | 佳木斯电机股份有限公司 | Fan for synchronous motor test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104632682B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2333323B1 (en) | Wind power turbine | |
| CN104632682A (en) | Adjustable water-turbine generator set cooling fan and blade adjusting method thereof | |
| EP3428449B1 (en) | Drivetrain for a wind turbine and method for positioning a main bearing of said drivetrain | |
| CN204511938U (en) | A kind of adjustable turbine-generator units cooling fan | |
| CN101302997A (en) | Magnetic suspension paddle distance self-adjusting vertical shaft wind power generator | |
| CN103701238A (en) | Self-circulating heat dissipating device of 5MW doubly-fed air-cooled and water-cooled wind generator | |
| US10107255B2 (en) | Gearbox repair apparatus | |
| US20130300124A1 (en) | Profiled Air Cap on Direct Drive Wind Turbine Generator | |
| US10256705B2 (en) | Method for repairing an electric generator having a rotor connecting ring with conductive arc segments | |
| CN107370294A (en) | A kind of wind-driven generator | |
| CN205135903U (en) | Anti high wind type vertical axis aerogenerator and fan blade subassembly connecting device | |
| CN101814793A (en) | Natural air cooled and directly driven synchronizing windmill generator | |
| CN202732216U (en) | Pneumatic attack angle blade horizontal shaft wind machine | |
| CN101741177A (en) | Cooling mechanism of power generator | |
| CN106968884A (en) | Gate-type impeller for wind-power electricity generation | |
| KR20110080946A (en) | Wind power generator | |
| CN204591363U (en) | Ring fixing structure held by a kind of gas turbine | |
| CN101787961B (en) | Small magnetic suspension horizontal shaft wind power generator | |
| CN201621017U (en) | Magnetic suspension small wind generator with horizontal shaft | |
| CN104514687A (en) | Blade pitch controller for small-scale wind power generation system | |
| CN204928472U (en) | Direct -cooled thermal power plant is external rotor permanent -magnet machine for cooling blower | |
| JP2019082135A (en) | Wind power generator | |
| CN208885572U (en) | A kind of motor and its motor cooling fan | |
| CN203368234U (en) | Miniwatt synchronous-generator fan | |
| CN206801943U (en) | A kind of cooling fan blade and its motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |