CN108105118A - A kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism - Google Patents
A kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism Download PDFInfo
- Publication number
- CN108105118A CN108105118A CN201711339621.2A CN201711339621A CN108105118A CN 108105118 A CN108105118 A CN 108105118A CN 201711339621 A CN201711339621 A CN 201711339621A CN 108105118 A CN108105118 A CN 108105118A
- Authority
- CN
- China
- Prior art keywords
- continuous strip
- electromagnetism
- shaftless
- whirlpool
- volution blade
- 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.)
- Pending
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- 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
- F04D29/30—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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to high-tenacity, low noise, to cardioid gas booster machine technical field, disclose a kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism, rotary barrel is provided with, rotary barrel is internally provided with the continuous strip vortex leaf road of the periodically circular forward direction of continuous strip；Positive continuous strip vortex Ye Daonei is arranged with continuous strip volution blade, continuous strip volution blade radius outer rim is constant, centripetal inclination angle is from 90 degree to 45 degree of orderly change in topology, and screw pitch by greatly and smallly changes in order, and continuous strip volution blade spacial ordering is by big and small variation.Leaf blade in whirlpool of the present invention is synchronous with electromagnetic rotor, and the small rotary force of electromagnetic field rotor generates big rotary force for rotary barrel and big suction power acts on；It under power, realizes and saves power consumption 8%, increase gaseous-pressure more than 30%.Increase gas quantity more than 50%, there is small high pressure, low power consumption, safety, resistance, low noise, high efficiency superiority.
Description
Technical field
The invention belongs to high-tenacity, low noises, shaftless to cardioid gas booster fan technical field more particularly to a kind of electromagnetism
Whirlpool leaf radial inflow gas booster machine.
Background technology
Conventional gas pressuring machine has：Positive displacement, using working chamber volume mechanical periodicity come delivery of fuel gas booster fan amount；Leaf
Chip is conveyed gas booster using centrifugal force caused by the high speed rotation of blade and combustion gas interaction in impeller.Currently
Booster fan is short stroke centrifugal type blade mostly, and structure construction is unreasonable, occurs low-pressure, high power consumption, high noisy in use
Etc. drawbacks.
In conclusion problem existing in the prior art is：Conventional gas pressuring machine is separated with generator body, gas booster machine
Single blade belongs to short stroke work, fires gas particle and the blade contact time is few, acceleration force is small, and pressure is small, and power consumption is big, makes
The drawbacks such as low work efficiency, high noisy, waste of resource in, it is unreasonable that key is that gas booster mechanism makes.
The content of the invention
In view of the problems of the existing technology, the present invention provides a kind of shaftless whirlpool leaf radial inflow gas booster machines of electromagnetism.
The present invention is achieved in that a kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism, the shaftless whirlpool leaf of electromagnetism
Radial inflow gas booster machine is provided with rotary barrel, and the rotary barrel is internally provided with the periodically circular forward direction of continuous strip
Continuous strip vortex leaf road；The positive continuous strip vortex Ye Daonei is arranged with continuous strip volution blade, described
Continuous strip volution blade radius outer rim is constant, and centripetal inclination angle is from 90 degree to 45 degree of orderly change in topology, and screw pitch is in order by big
And change smallly, continuous strip volution blade spacial ordering is by big and small variation.
Further, electromagnetic field stator is provided in the electromagnetic field of motor body, electromagnetic field rotor is fixed on rotating cylinder by electric wire
On external wall, electromagnetic field rotor connection rotary barrel is rotated in electromagnetic field after energization, both ends and the motor seal axis of rotary barrel
Hold connection.
Further, the continuous strip volution blade is advised around rotatable cylinder inboard wall is connected to by hydrodynamics
It then sets, has：
(a) screw pitch of continuous strip volution blade is arrogant and small；
(b) inclination angle of continuous strip volution blade radius is tilted by 90 degree to close to 45 degree；
(c) outer rim of continuous strip volution blade radius is constant；
(d) the continuous big center in strip volution blade radial thickness edge is small；
(e) continuous strip volution blade by 90 degree to close to 45 degree of inclined bendings；
(f) continuous strip vortex Ye Daonei wind bodies particle is subject to acceleration effect for a long time, there is public rotation plus spin motion
With the centripetal movement of vortex, superpower big rotary force and pressure are generated, forms sextuple Yi Shang multinomial kinetic equation.
(g) continuous strip volution blade reduces blade and wind turbine fluid impact, has safety, reduces the uneven shake of machinery
The superiority such as dynamic, noise, resistance.
Further, between the rotary barrel inner wall and continuous strip volution blade, it is provided with circular ring type and is dielectrically separated from
Thermal insulation layer.
Further, the front end of the shaftless whirlpool leaf radial inflow gas booster machine of the electromagnetism is by into gas engine pipe joint and opening
Connection is led into gas engine pipeline；The rear end of the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism is by going out gas engine pipe joint
Gas engine pipeline is connected out with safe fan housing；The outer cover of the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism is equipped with electronic height
Compression ignition mechanism of qi all-in-one machine；
The middle part of the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism is embedded with motor housing, the table of the motor housing
Face is provided with high-pressure gas machine Petrochemical Pipe Joints.
Advantages of the present invention and good effect are：
The present invention has overturned cannot continuously adding for domestic and international conventional gas machine (gas pump) unit sheet structure for hundreds of years
Power work structuring.It is proposed that, to the continuous strip volution blade of cardioid, the acceleration that blade generates is：During the screw pitch of unit blade
Between " quadratic sum "≤continuous blade the screw pitch time " and square ".
The present invention has overturned both at home and abroad the single area of conventional gas machine (gas pump) unit blade and pressure for hundreds of years
Conversion regime；It is proposed that shaftless continuous volution blade has the common of space, area, screw pitch, density, bending, quality, the moment of inertia etc.
The synthetic operation relation of the fluid motion of multielement is established in effect.
Particular content has：
(1), electromagnetism mechanics principle is met, electromagnetic field is arranged at combustion gas high-pressure unit periphery so that whirlpool leaf blade turns with electromagnetism
It is sub synchronous, meet electromagnetism mechanics principle：That is the small rotary force of electromagnetic field is inversely proportional by moment, small electromagnetic force play big rotary force and
Save electro ultrafiltration.It realizes that motor is integrated with body, under power, realizes power saving 8%.
(2), fluid mechanics principle is met：It is shaftless to the continuous strip volution blade of cardioid and Wo Ye roads, in long-time plus
Under speed effect, powerful high rotational pressure is generated.This be conventional short stroke blade gas booster machine cannot and superiority.Not yet
Have that blade (conventional gas machine blade belongs to short stroke) is small with the impact force resistance of fluid, under power, increase gaseous-pressure
More than 30%.Increase gas quantity more than 50%.Raising can be connected for gas engine pressure, parallel connection is improved for gas engine amount.
(3), shaftless strip moves in order continuously into cardioid vortex street so that gas particle is centripetal, permanent stream mode backward
Dynamic and pressurization, avoids the impact force of blade and fuel gas fluid, between rotary barrel inner wall and whirlpool leaf periphery cylinder, is provided with circle
It is ring-like to be dielectrically separated from thermal insulation layer, prevent fuel gas temperature excessively high and the interference of electromagnetic field；Meet safety anti-explosive operation principle：It is fired with sending
Large-minded, safety, resistance are small, the effect of low noise, high pressure, high efficiency.
(4), can flexibly be installed, concatenation, which is improved, to be improved for gaseous-pressure, splicing for gas quantity capacity, application field
It is wide.
(5), rotary barrel and high-pressure unit are controlled with electromagnetic field, if (separately having specially plus the generator that combustion gas is power is set up
Profit) it is mating, it is formed with beneficial to automation control and remote-operated supply station.
Description of the drawings
Fig. 1 is the structure diagram of the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism provided in an embodiment of the present invention；
Fig. 2 is the shaftless whirlpool leaf gas engine organigram of rotary barrel provided in an embodiment of the present invention；
In figure：1st, into gas engine pipeline；2nd, into gas engine pipe joint and switch；3rd, gas engine pipeline is gone out；4th, combustion gas is gone out
The safe fan housing of machine pipe joint band；5th, driven high voltage gas engine all-in-one machine；6th, motor body；7th, combustion gas body；8th, electromagnetic field stator；
9th, electromagnetic field rotor；10th, rotary barrel；11st, high-pressure gas machine Petrochemical Pipe Joints；12nd, continuous strip volution blade；13rd, even
Continuous strip vortex leaf road；14th, motor seal bearing；15th, motor housing；16th, circular ring type solenoid isolation isolation thermal insulation layer.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described the application principle of the present invention.
Fig. 1 and Fig. 2, the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism provided in an embodiment of the present invention, is provided with rotating cylinder
Body 10, the rotary barrel 10 are internally provided with the continuous strip vortex leaf road 13 of the periodically circular forward direction of continuous strip, even
Continuous strip 12 radius outer rims of volution blade are constant, and centripetal inclination angle is from 90 degree to 45 degree of orderly change in topology, and screw pitch is in order by big
And change smallly, continuous 12 spacial ordering of strip volution blade is by big and small variation.Continuous 13 space of strip vortex leaf road
It is arrogant and small, the rotational pressure of powerful high pressure is generated in rotation.
As the preferred embodiment of the present invention, the electromagnetic field of motor body 6 is provided with electromagnetic field stator 8, electromagnetic field rotor 9 by
Electric wire is fixed on 10 outer wall of rotary barrel, and electromagnetic field rotor 9 connects rotary barrel 10 and rotated in electromagnetic field after energization, in drive
The continuous shaftless continuous whirlpool leaf in strip vortex leaf road 13, both ends and the motor seal bearing 14 of rotary barrel 10 are connected at portion center
Connection.
As the preferred embodiment of the present invention, according to turning moment equilibrium principle, the coordination cloth of each variable element is carried out
It puts：Electromagnetic field generates small rotary force in outer rim；High acceleration is generated in 9 inward flange long stroke whirlpool Ye Yedao of electromagnetic field rotor, is made
For the preferred embodiment of the present invention, the construction of the leafy shaftless whirlpool leaf in road is in electromagnetic field rotor 9：Continuous strip volution blade 12
Around rotatable cylinder inboard wall is connected to, by hydrodynamics rule setting, the variation having：
(a) screw pitch of continuous strip volution blade 12 is arrogant and small；
(b) inclination angle of continuous 12 radius of strip volution blade is tilted by 90 degree to close to 45 degree；
(c) outer rim of continuous 12 radius of strip volution blade is constant；
(d) the continuous 12 big centers in radial thickness edge of strip volution blade are small；
(e) continuous strip volution blade by 90 degree to close to 45 degree of inclined bendings,
(f) continuous strip vortex Ye Daonei wind body particles are subject to prolonged acceleration to act on, and have public rotation plus spin motion
With the centripetal movement of vortex, superpower big rotary force and pressure are generated, forms sextuple Yi Shang multinomial kinetic equation.
As the preferred embodiment of the present invention, combustion gas body 7 is additionally provided with, the front end of the combustion gas body 7 is by into combustion
Mechanism of qi pipe joint and switch 2 are connected into gas engine pipeline 1, and the rear end of the combustion gas body 7 is by going out gas engine pipe joint
Gas engine pipeline 3 is connected out with safe fan housing 4；The outer cover of the combustion gas body 7 is equipped with driven high voltage gas engine all-in-one machine 5；
The middle part of the combustion gas body 7 is embedded with motor housing 15, and the surface of the motor housing 15 is provided with high compression ignition
Mechanism of qi Petrochemical Pipe Joints 11.
Motor body 6 and the shaftless continuous radial inflow whirlpool leaf composition gas booster fan of multiple tracks, form motor and gas booster
Wind turbine integrated electric motor.Under electromagnetic field effect, the rotary barrel 10 of rotor Inner directly sets the hydromechanical company of symbol platform
The continuous leafy road of strip is shaftless to cardioid whirlpool leaf, and leaf rotation in whirlpool generates powerful rotary force and propelling pressure.In electromagnetic field stator 8
The heart has electromagnetic field rotor 9, and there is rotary barrel 10 at the center of electromagnetic field rotor 9, and there are Petrochemical Pipe Joints and switch 11, rotating cylinder in both ends
Body 10 has continuous strip volution blade 12 and continuous strip vortex leaf road 13.Gas engine is subject to high intensity to squeeze to form height
Suction amount high-pressure gas machine.Overcome conventional press gas engine defect.Continuous strip volution blade has powerful rotation suction
Pressure, reduces the impact force of blade and fuel gas fluid, time independent fluid state, rotary barrel inner wall and whirlpool leaf periphery cylinder it
Between, it is provided with circular ring type and is dielectrically separated from thermal insulation layer 16；Reduce the uneven vibrations of machinery, explosion-proof, the operation is stable, noise, resistance etc..
It housing construction compact and reasonable and can automatically control and the superiority such as remote operation.
The above is only to implement the preferred embodiment of the shaftless whirlpool leaf job applications of strip to the present invention, is not pair
The present invention makees limitation in any form, and every technical spirit according to gas booster machine of the present invention does above example
Any simple modification, equivalent variations with modification and mechanics parameter and multinomial dimension Power change, belong to the technology of the present invention
In the range of scheme.
Claims (5)
- A kind of 1. shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism, which is characterized in that the shaftless whirlpool leaf radial inflow combustion gas of electromagnetism Pressuring machine is provided with rotary barrel, and the rotary barrel is internally provided with the periodically circular continuous strip of forward direction of continuous strip Vortex leaf road；The positive continuous strip vortex Ye Daonei is arranged with continuous strip volution blade, the continuous strip Volution blade radius outer rim is constant, and from 90 degree to 45 degree of orderly change in topology, screw pitch by greatly and smallly changes in order at centripetal inclination angle, Continuous strip volution blade spacial ordering is by big and small variation.
- 2. the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism as described in claim 1, which is characterized in that the electromagnetic field of motor body Electromagnetic field stator is inside provided with, electromagnetic field rotor is fixed on by electric wire on rotary barrel outer wall, and electromagnetic field rotor connects after energization Rotary barrel is rotated in electromagnetic field, and the both ends of rotary barrel are connected with motor seal bearing.
- 3. the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism as described in claim 1, which is characterized in that the continuous strip Volution blade, by hydrodynamics rule setting, has around rotatable cylinder inboard wall is connected to：(a) screw pitch of continuous strip volution blade is arrogant and small；(b) inclination angle of continuous strip volution blade radius is tilted by 90 degree to close to 45 degree；(c) outer rim of continuous strip volution blade radius is constant；(d) the continuous big center in strip volution blade radial thickness edge is small；(e) continuous strip volution blade by 90 degree to close to 45 degree of inclined bendings；(f) continuous strip vortex Ye Daonei wind bodies particle is subject to acceleration effect for a long time, there is public rotation plus spin motion and whirlpool Rotating centripetal movement generates superpower big rotary force and pressure, forms sextuple Yi Shang multinomial kinetic equation.
- 4. the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism as described in claim 1, which is characterized in that in the rotary barrel Between wall and continuous strip volution blade, it is provided with circular ring type and is dielectrically separated from thermal insulation layer.
- 5. the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism as described in claim 1, which is characterized in that the shaftless whirlpool of electromagnetism The front end of leaf radial inflow gas booster machine into gas engine pipe joint and switch by connecting into gas engine pipeline；The electromagnetism without The rear end of axis whirlpool leaf radial inflow gas booster machine connects out gas engine pipeline by going out the safe fan housing of gas engine pipe joint band；Institute The outer cover for stating the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism is equipped with driven high voltage gas engine all-in-one machine；The middle part of the shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism is embedded with motor housing, and the surface of the motor housing is set It is equipped with high-pressure gas machine Petrochemical Pipe Joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339621.2A CN108105118A (en) | 2017-12-14 | 2017-12-14 | A kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339621.2A CN108105118A (en) | 2017-12-14 | 2017-12-14 | A kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108105118A true CN108105118A (en) | 2018-06-01 |
Family
ID=62216972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711339621.2A Pending CN108105118A (en) | 2017-12-14 | 2017-12-14 | A kind of shaftless whirlpool leaf radial inflow gas booster machine of electromagnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105118A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258817A (en) * | 2000-01-03 | 2000-07-05 | 蒋子刚 | Rotating drum liquid ring vacuum pump/compressor |
| CN104895674A (en) * | 2015-04-20 | 2015-09-09 | 汪一平 | Dual-vortex negative pressure internal combustion engine |
| CN107178509A (en) * | 2016-03-12 | 2017-09-19 | 修广文 | Disc type blower fan |
| CN107246395A (en) * | 2017-06-28 | 2017-10-13 | 武汉理工大学 | A kind of shaftless edge wheel water jet pump of electromagnetism peculiar to vessel |
-
2017
- 2017-12-14 CN CN201711339621.2A patent/CN108105118A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258817A (en) * | 2000-01-03 | 2000-07-05 | 蒋子刚 | Rotating drum liquid ring vacuum pump/compressor |
| CN104895674A (en) * | 2015-04-20 | 2015-09-09 | 汪一平 | Dual-vortex negative pressure internal combustion engine |
| CN107178509A (en) * | 2016-03-12 | 2017-09-19 | 修广文 | Disc type blower fan |
| CN107246395A (en) * | 2017-06-28 | 2017-10-13 | 武汉理工大学 | A kind of shaftless edge wheel water jet pump of electromagnetism peculiar to vessel |
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Application publication date: 20180601 |