CN108708853A - The scroll type air compressor of air-cooled oil-free - Google Patents
The scroll type air compressor of air-cooled oil-free Download PDFInfo
- Publication number
- CN108708853A CN108708853A CN201810368688.7A CN201810368688A CN108708853A CN 108708853 A CN108708853 A CN 108708853A CN 201810368688 A CN201810368688 A CN 201810368688A CN 108708853 A CN108708853 A CN 108708853A
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- China
- Prior art keywords
- air
- circular arc
- moving plate
- cooled oil
- scroll type
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of scroll type air compressors of air-cooled oil-free comprising shell, eccentric drive shaft, Moving plate, quiet disk, air entry and exhaust outlet.Eccentric drive shaft is arranged in the middle part of shell to introduce external impetus；The center of Moving plate is hubbed at the output end of eccentric drive shaft, and it revolves round the sun with output end, the one side of Moving plate has dynamic vortex portion, the head in dynamic vortex portion has the first circular arc, first straight line and the second circular arc, the diameter of first circular arc is between 10~15mm, and the diameter of the second circular arc is between 1~3mm；There is quiet disk the quiet scroll portion of molded line parameter identical as the dynamic vortex portion of Moving plate, dynamic vortex portion to be intermeshed with quiet scroll portion, and form multiple months teeths cavity of volume consecutive variations from outside to inside；Air entry is communicated with the outside of multiple months teeths cavity, and natural air is imported crescent moon intracavitary；Exhaust outlet is communicated with the center of multiple months teeths cavity, is discharged the natural air after squeezing heating is changed by the volume of moon teeth cavity.The present invention can purchase the service life for extending compressor.
Description
Technical field
The present invention relates to mechanical manufacturing field, more particularly to a kind of scroll type air compressor of air-cooled oil-free.
Background technology
Scroll type air compressor well known to those skilled in the art is all the full meshing profile by Moving plate and quiet disk
Gear motion forms the moon teeth cavity of volume consecutive variations from outside to inside, to which external compressible natural air is logical from outside
The air entry of overcompression machine sucks, after the extruding boosting of moon teeth cavity volume variation, heating, finally from the exhaust outlet of compressor
Discharge.The gas of discharge is connected by transit system with cooler, and check valve can be arranged usually in transit system to be prevented
Natural air flows back, and ensures being expelled directly out for natural air.
However will produce the pressure change of heat and gas in the full meshing profile gear motion of Moving plate and quiet disk,
Error under the action of thermal deformation and gas pressure and in terms of compressor element processing can lead to the scroll portion of Moving plate and quiet disk
Head due to intensity is insufficient and there is a phenomenon where be broken.
Further, since check valve in the prior art generally can be all arranged in transit system, and so, natural air
Still it can be back in compressor from the exhaust outlet of compressor, certain influence is generated to the working efficiency of compressor.
The drawbacks described above of the prior art is always to perplex the technical barrier of this field.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of scroll type air compressors of air-cooled oil-free, to overcome the prior art
Disadvantages mentioned above.
To achieve the above object, the present invention provides a kind of scroll type air compressors of air-cooled oil-free comprising shell,
Eccentric drive shaft, Moving plate, quiet disk, air entry and exhaust outlet.Eccentric drive shaft is arranged in the middle part of shell to introduce outside
Power；The center of Moving plate is hubbed at the output end of eccentric drive shaft, and revolves round the sun with output end, and the one side of Moving plate has dynamic vortex
The head in portion, dynamic vortex portion has the first circular arc, first straight line and the second circular arc, and the diameter of the first circular arc is between 10~15mm
Between, the diameter of the second circular arc is between 1~3mm；Quiet disk has the quiet whirlpool of molded line parameter identical as the dynamic vortex portion of Moving plate
Rotation portion, dynamic vortex portion are intermeshed with quiet scroll portion, and form multiple months teeths cavity of volume consecutive variations from outside to inside；Air-breathing
Mouth is communicated with the outside of multiple months teeths cavity, and natural air is imported crescent moon intracavitary；The middle part of exhaust outlet and multiple months teeths cavity
Communicate, will by the volume of moon teeth cavity change squeeze heating after natural air be discharged.
Preferably, in above-mentioned technical proposal, the head of the quiet scroll portion of quiet disk has third circular arc, second straight line and the
Four circular arcs.
Preferably, in above-mentioned technical proposal, the first circular arc is identical as third circular arc, and first straight line is identical as second straight line,
Second circular arc is identical as the 4th circular arc.
Preferably, in above-mentioned technical proposal, the another side of Moving plate is radiating surface, and the central area of radiating surface is high temperature and pressure
Area, have in high temperature and pressure area from the center of radiating surface radially outward property be distributed and the reinforcing rib that extends certain distance.
Preferably, in above-mentioned technical proposal, the scroll type air compressor of air-cooled oil-free further includes one-way exhaust valve, is set
It is placed between exhaust outlet and moon teeth cavity, one-way exhaust valve can prevent air-flow from flowing back into crescent moon intracavitary from exhaust outlet.
Preferably, in above-mentioned technical proposal, one-way exhaust valve includes valve end, spool, valve body and spring.Valve end includes upper
There is valve opening, the center of lower plane there is valve port, valve opening to be communicated with valve port at the center of plane and lower plane, upper plane；Spool
One end support and close valve port；Valve body in leakage cup-like structure, the rim of a cup of valve body be set in the outside of spool and with lower plane phase
Connection；Spring is installed between the other end of spool and the bottom of a cup of valve body, and spring supports spool, to keep envelope of the spool to valve port
It closes.
Preferably, in above-mentioned technical proposal, the scroll type air compressor of air-cooled oil-free further includes first bearing and second
Bearing is respectively sleeved at the both ends of eccentric drive shaft, to support eccentric drive shaft.
Preferably, in above-mentioned technical proposal, the scroll type air compressor of air-cooled oil-free further includes crank throw, and one end is pivoted
In the top of shell, the other end is hubbed at the top of Moving plate, and crank throw has an eccentricity identical with eccentric drive shaft, crank throw to
Limit Moving plate rotation.
Preferably, in above-mentioned technical proposal, the scroll type air compressor of air-cooled oil-free further includes fore bearing and rear axle
It holds, is sheathed on the both ends of crank throw respectively, to support crank throw.
Compared with prior art, the present invention has the advantages that：Moving plate, the thickening of quiet disk swirl head and Moving plate
The setting of radiating surface reinforcing rib, thoroughly avoiding thus thermal deformation and pressure change and mismachining tolerance leads to the head of scroll portion
The phenomenon of rupture that intensity is insufficient and causes.The setting of one-way exhaust valve avoids extraneous gas and is back to compression from exhaust outlet simultaneously
In machine, the working efficiency of compressor is improved.
Description of the drawings
Fig. 1 is the sectional structure chart of the scroll type air compressor of air-cooled oil-free according to the present invention.
Fig. 2 is the three-dimensional shaft side figure of the scroll type air compressor of air-cooled oil-free according to the present invention.
Fig. 3 is the partial enlargement in the Moving plate dynamic vortex portion of the scroll type air compressor of air-cooled oil-free according to the present invention
Figure.
Fig. 4 is the partial enlargement of the quiet scroll portion of quiet disk of the scroll type air compressor of air-cooled oil-free according to the present invention
Figure.
Fig. 5 is the sectional structure chart of the one-way exhaust valve of the scroll type air compressor of air-cooled oil-free according to the present invention.
Fig. 6 is the three-dimensional shaft side figure of the one-way exhaust valve of the scroll type air compressor of air-cooled oil-free according to the present invention.
Fig. 7 is the structure chart of the Moving plate radiating surface of the scroll type air compressor of air-cooled oil-free according to the present invention.
Fig. 8 is A-A sectional views of the Moving plate radiating surface of the scroll type air compressor of air-cooled oil-free according to the present invention.
Main appended drawing reference explanation：
1- eccentric drive shafts, 2- first bearings, 3- second bearings, 4- Moving plates, 41- dynamic vortex portion, the first circular arcs of 411-,
412- first straight lines, the second circular arcs of 413-, 42- radiating surfaces, 421- reinforcing ribs, the quiet disks of 5-, the quiet scroll portions of 51-, 511- thirds circle
Arc, 512- second straight lines, the 4th circular arcs of 513-, 6- crank throws, 7- fore bearings, bearing after 8-, 9- one-way exhaust valves, 91- valves end,
The upper planes of 911-, 912- lower planes, 92- spools, 93- valve bodies, 94- springs, 10- air entries, 11- exhaust outlets, 12- shells.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 2, Fig. 1 is the sectional structure of the scroll type air compressor of air-cooled oil-free according to the present invention
Figure.Fig. 2 is the three-dimensional shaft side figure of the scroll type air compressor of air-cooled oil-free according to the present invention.It is embodied according to the present invention
A kind of scroll type air compressor 100 of air-cooled oil-free of mode comprising shell 12, eccentric drive shaft 1, Moving plate 4, quiet disk 5,
Air entry 10 and exhaust outlet 11.
Please in detail refering to fig. 1, in some embodiments, eccentric drive shaft 1 is arranged in the middle part of shell 12 to introduce
There is input terminal and output end, first bearing 2 and second bearing 3 to be respectively sleeved at its both ends and rise for external impetus, eccentric drive shaft 1
To support and turning effort.
As shown in Fig. 1 and Fig. 3 to Fig. 4, Fig. 3 is the Moving plate of the scroll type air compressor of air-cooled oil-free according to the present invention
The partial enlarged view in dynamic vortex portion.Fig. 4 is the quiet vortex of quiet disk of the scroll type air compressor of air-cooled oil-free according to the present invention
The partial enlarged view in portion.In some embodiments, the center of Moving plate 4 is hubbed at the output end of eccentric drive shaft 1, and with output
End is revolved round the sun, and there is the one side of Moving plate 4 dynamic vortex portion 41, the head in dynamic vortex portion 41 to have the first circular arc 411, first straight line
412 and second circular arc 413, the diameter of the first circular arc 411 between 10~15mm, the diameter of the second circular arc 413 between 1~
Between 3mm.Quiet disk 5 has the quiet scroll portion 51 of molded line parameter identical as the dynamic vortex portion 41 of Moving plate 4.The quiet scroll portion of quiet disk 5
51 head has third circular arc 511, second straight line 512 and the 4th circular arc 513.And first circular arc 411 and third circular arc 511
Identical, first straight line 412 is identical as second straight line 512, and the second circular arc 413 is identical as the 4th circular arc 513.Dynamic vortex portion 41 with it is quiet
Scroll portion 51 is intermeshed, and forms multiple months teeths cavity of volume consecutive variations from outside to inside；Air entry 10 and multiple crescent moons
The outside of chamber communicates, and natural air is imported crescent moon intracavitary；Exhaust outlet 11 and communicating at the center of multiple months teeths cavity, with
It is discharged the natural air after squeezing heating is changed by the volume of moon teeth cavity.Two sections of arcs on the head of 5 scroll portion of Moving plate 4 and quiet disk
The setting of line and straight line is actually thickeied the head of scroll portion, can be become in this way to avoid because of thermal deformation and pressure
Change and mismachining tolerance caused by head strength it is insufficient and (dotted portion in Fig. 3, Fig. 4 is the prior art the phenomenon that be broken
Head sizes).
As shown in Fig. 7 to Fig. 8, Fig. 7 is the Moving plate heat dissipation of the scroll type air compressor of air-cooled oil-free according to the present invention
The structure chart in face.Fig. 8 is A-A section views of the Moving plate radiating surface of the scroll type air compressor of air-cooled oil-free according to the present invention
Figure.In some embodiments, the another side of Moving plate 4 is radiating surface 42, and the central area of radiating surface 42 is high temperature and pressure area,
Have in high temperature and pressure area from the center of radiating surface 42 radially outward property be distributed and the reinforcing rib 421 that extends certain distance, this
The length of embodiment reinforcing rib 421 is 50~70mm, but the present invention is not limited thereto.The setting of reinforcing rib 421 is equally kept away
Exempting from high-temperature region because temperature is excessively high leads to that cracking phenomena occurs due to high-temperature region thermal deformation is excessive.
As shown in Figure 5 to Figure 6, Fig. 5 is the one-way exhaust of the scroll type air compressor of air-cooled oil-free according to the present invention
The sectional structure chart of valve.Fig. 6 is the solid of the one-way exhaust valve of the scroll type air compressor of air-cooled oil-free according to the present invention
Shaft side figure.In some embodiments, the scroll type air compressor 100 of air-cooled oil-free further includes one-way exhaust valve 9, setting
Between exhaust outlet 11 and moon teeth cavity, one-way exhaust valve 9 can prevent air-flow from flowing back into crescent moon intracavitary from exhaust outlet 11, set in this way
It counts very helpful for the working efficiency for improving compressor.
In some embodiments, one-way exhaust valve 9 includes valve end 91, spool 92, valve body 93 and spring 94.Valve end 91
Including upper plane 911 and lower plane 912, there is valve opening, the center of lower plane 912 to have valve port, valve at the center of upper plane 911
Hole is communicated with valve port；It supports and closes valve port in one end of spool 92；Valve body 93 is set in valve in leakage cup-like structure, the rim of a cup of valve body
The outside of core 92 is simultaneously connected with lower plane 912；And spring 94 be installed in the other end of spool 92 and valve body 93 bottom of a cup it
Between, spring 94 supports spool 92, to keep closing of the spool 92 to valve port.The valve opening of one-way exhaust valve 9 is directed towards compressor
Month teeth cavity, the gas pressure of of that month teeth cavity when the pressure on spool 92 is more than the pressure of spring 94, open by one-way exhaust valve 9
Exhaust outward, otherwise it is closed always, ensures that extraneous air cannot flow back into pressure from exhaust outlet 11 in this way
In contracting machine.For the diameter of the valve opening of the present embodiment between 5~8mm, such design can flow a gas through noise when valve opening
It further decreases.The material of the spool 92 of the present embodiment can be metal, can also be nonmetallic, it is therefore preferable to polyether-ether-ketone
(PEEK) material, wherein containing 10%~30% carbon fiber, processing method is injection molding molding；But the present invention is not
As limit.
Referring to Fig. 1 to Fig. 2, in some embodiments, the scroll type air compressor 100 of air-cooled oil-free also wraps
Crank throw 6 is included, one end is hubbed at the top of shell 12, and the other end is hubbed at the top of Moving plate 4.The both ends of crank throw 6 are also arranged with
Fore bearing 7 and rear bearing 8 are supporting crank throw 6.Crank throw 6 has eccentricity identical with eccentric drive shaft 1, crank throw 6 simultaneously
Effect be limitation Moving plate 4 can only take eccentric drive shaft 1 as axle center revolution, and cannot be with the axle center rotation of Moving plate 4 oneself.
Compared with prior art, the scroll type air compressor of air-cooled oil-free of the invention has the advantages that：It is dynamic
Disk, the thickening of quiet disk swirl head and the setting of Moving plate radiating surface reinforcing rib, thoroughly avoid thus thermal deformation and pressure becomes
Change and mismachining tolerance causes the head strength of scroll portion insufficient and the phenomenon of rupture of initiation.The setting of one-way exhaust valve 9 simultaneously
It avoids extraneous gas to be back in compressor from exhaust outlet 11, improves the working efficiency of compressor.
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (9)
1. a kind of scroll type air compressor of air-cooled oil-free, which is characterized in that it includes：
Shell；
Eccentric drive shaft is arranged in the middle part of the shell to introduce external impetus；
Moving plate, center is hubbed at the output end of the eccentric drive shaft, and revolves round the sun with the output end, the one side of the Moving plate
With dynamic vortex portion, the head in the dynamic vortex portion has the first circular arc, first straight line and the second circular arc, first circular arc
Diameter between 10~15mm, the diameter of second circular arc is between 1~3mm；
Quiet disk, with molded line parameter identical as the dynamic vortex portion of the Moving plate quiet scroll portion, the dynamic vortex portion with
The quiet scroll portion intermeshing, and form multiple months teeths cavity of volume consecutive variations from outside to inside；
Natural air is imported the crescent moon intracavitary by air entry with communicating for the outside of the multiple moon teeth cavity；And
Exhaust outlet adds with communicating at the center of the multiple moon teeth cavity by being squeezed by the variation of the volume of the moon teeth cavity
Natural air discharge after heat.
2. the scroll type air compressor of air-cooled oil-free according to claim 1, which is characterized in that the quiet disk it is described
The head of quiet scroll portion has third circular arc, second straight line and the 4th circular arc.
3. the scroll type air compressor of air-cooled oil-free according to claim 2, which is characterized in that first circular arc with
The third circular arc is identical, and the first straight line is identical as the second straight line, second circular arc and the 4th circular arc phase
Together.
4. the scroll type air compressor of air-cooled oil-free according to claim 1, which is characterized in that the Moving plate it is another
Face is radiating surface, and the central area of the radiating surface is high temperature and pressure area, is had from the heat dissipation in the high temperature and pressure area
The center in face radially outward property distribution and the reinforcing rib that extends certain distance.
5. the scroll type air compressor of air-cooled oil-free according to claim 1, which is characterized in that further include one-way exhaust
Valve is set between the exhaust outlet and the moon teeth cavity, and the one-way exhaust valve can prevent air-flow from the exhaust outlet
Flow back into the crescent moon intracavitary.
6. the scroll type air compressor of air-cooled oil-free according to claim 5, which is characterized in that the one-way exhaust valve
Including：
Valve end comprising the center of upper plane and lower plane, the upper plane has valve opening, and the center of the lower plane has
Valve port, the valve opening are communicated with the valve port；
Spool, one end are supported and close the valve port；
Valve body, in leakage cup-like structure, the rim of a cup of the valve body is set in the outside of the spool and is connected with the lower plane
It connects；And
Spring is installed between the other end of the spool and the bottom of a cup of the valve body, and the spring supports the spool, with
Keep closing of the spool to the valve port.
7. the scroll type air compressor of air-cooled oil-free according to claim 1, which is characterized in that further include first bearing
And second bearing, the both ends of the eccentric drive shaft are respectively sleeved at, to support the eccentric drive shaft.
8. the scroll type air compressor of air-cooled oil-free according to claim 1, which is characterized in that further include crank throw,
One end is hubbed at the top of the shell, and the other end is hubbed at the top of the Moving plate, and the crank throw has and the eccentric drive
The identical eccentricity of moving axis, the crank throw is limiting the Moving plate rotation.
9. the scroll type air compressor of air-cooled oil-free according to claim 8, which is characterized in that further include fore bearing with
And rear bearing, it is sheathed on the both ends of the crank throw respectively, to support the crank throw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368688.7A CN108708853A (en) | 2018-04-23 | 2018-04-23 | The scroll type air compressor of air-cooled oil-free |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368688.7A CN108708853A (en) | 2018-04-23 | 2018-04-23 | The scroll type air compressor of air-cooled oil-free |
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| Publication Number | Publication Date |
|---|---|
| CN108708853A true CN108708853A (en) | 2018-10-26 |
Family
ID=63866920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810368688.7A Pending CN108708853A (en) | 2018-04-23 | 2018-04-23 | The scroll type air compressor of air-cooled oil-free |
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Cited By (2)
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| CN109185127A (en) * | 2018-07-28 | 2019-01-11 | 西安交通大学 | A kind of cooling structure of oil-free turbo-compressor |
| CN110242567A (en) * | 2019-07-01 | 2019-09-17 | 南京永升新能源技术有限公司 | A kind of high-efficiency water cooling heat radiating type oil-free scroll formula air compressor machine |
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| CN109185127A (en) * | 2018-07-28 | 2019-01-11 | 西安交通大学 | A kind of cooling structure of oil-free turbo-compressor |
| CN109185127B (en) * | 2018-07-28 | 2020-04-28 | 西安交通大学 | Cooling structure of oil-free scroll compressor |
| CN110242567A (en) * | 2019-07-01 | 2019-09-17 | 南京永升新能源技术有限公司 | A kind of high-efficiency water cooling heat radiating type oil-free scroll formula air compressor machine |
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Application publication date: 20181026 |