CN208024542U - A kind of rolling piston compressor radial direction observation of cavitation experimental provision - Google Patents
A kind of rolling piston compressor radial direction observation of cavitation experimental provision Download PDFInfo
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- CN208024542U CN208024542U CN201820440935.5U CN201820440935U CN208024542U CN 208024542 U CN208024542 U CN 208024542U CN 201820440935 U CN201820440935 U CN 201820440935U CN 208024542 U CN208024542 U CN 208024542U
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- cavitation
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Abstract
The utility model is related to rolling piston compressor working chamber radial clearance cavitation mechanism research fields.A kind of rolling piston compressor radial clearance observation of cavitation experimental provision, including compressor analogue observation device, camera and oil circulation device；The compressor analogue observation device includes rack, equivalent device and driving device；The upper rack is equipped with the equivalent device；The equivalent device is connect with the driving device；The oil circulation device is for oil inlet, fuel-displaced and leakage lubricating oil processing；The camera obtains at radial clearance clearly cavitation image and preserves for shooting.The utility model is by simulating rolling piston compressor, in working chamber full of oil, and under the working environment without pressure difference, use high-speed photography, it takes under piston operation, the case where bubble that its radial clearance is generated, with this come caused by studying at rolling piston compressor radial clearance the case where cavitation.
Description
Technical field
The utility model is related to rolling piston compressor working chamber radial clearance cavitation mechanism research fields, and in particular to one
Kind rolling piston compressor radial direction observation of cavitation experimental provision.
Background technology
In fluid machinery, cavitation is a kind of common and is mostly the phenomenon being harmful to.In rolling piston compressor,
Relative motion in the presence of there are many, in these relative motions, rolling piston compressor radial clearance, rotating speed, temperature and pressure
Just being easy tod produce all in real-time change, and during this variation, in the working chamber of compressor influences machine normal work
Cavitation phenomenon.Cavitation is once generate, under the interaction of fluid and vacuole, can change speed in fluidic structures or component and
Pressure is distributed, and prevents compressor from stable operation, and then some serious consequences is caused to occur.For example, rolling piston compressor
Working performance reduces, and material surface is destroyed, and unit generates vibration and noise, reduced service life etc..To ensure compressor peace
Entirely, stablize, efficiently run, its existing cavitation phenomenon is studied, is of great significance.And directly on the compressor into
The research of row cavitation is extremely difficult, thus is badly in need of designing a kind of observation experiment device of rolling piston compressor cavitation, with
Just it is observed research.
Invention content
In view of the above, the utility model provides a kind of rolling piston compressor radial clearance observation of cavitation experiment dress
It sets, which in working chamber full of oil, and under the working environment without pressure difference, uses height by simulating rolling piston compressor
Speed photography, take under piston operation, and the case where the bubble that radial clearance is generated, rolling piston compressor is studied with this
Caused by radial clearance the case where cavitation.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of rolling piston compressor radial clearance observation of cavitation experimental provision, including compressor analogue observation device, take the photograph
Image device and oil circulation device；
The compressor analogue observation device includes rack, equivalent device and driving device；The upper rack is equipped with
The equivalent device；The equivalent device includes bearing block, flange end cap, transparent outer cover, self-lubricating copper sheathing, eccentric shaft, rotor
And angular contact ball bearing；The bearing block is fixed at the top of the rack inner surface；The flange end cap is fixed on the rack
Outer surface top, is sealedly connected with transparent outer cover in the flange end cap, and the inner sealing of the transparent outer cover is connected with from moistening
Sliding copper sheathing；The circle centre position of the flange end cap offers cap bore；The axle center of the eccentric shaft sequentially passes through in the flange end cap
Cap bore and bearing block after connect with the driving device, space between the eccentric shaft and transparent outer cover forms simulation and rolls
The working chamber of piston compressor；The piston end surfaces of the eccentric shaft are equipped with rotor, have circle on the axle center of the eccentric shaft
Circular step, the bearing block is interior to be equipped with angular contact ball bearing, and the step of the eccentric shaft is slided with the angular contact ball bearing
Connection, makes the angular contact ball bearing and eccentric shaft clearance fit；
The camera includes ring illumination lamp, high-speed motion picture camera and the meter being electrical connected with the high-speed motion picture camera
Calculation machine, the ring illumination lamp position is in the top of the transparent outer cover；The high-speed motion picture camera is located at the side of the rack, and
Working chamber described in the alignment lens of high-speed motion picture camera；
The oil circulation device includes oil storage pool, oil inlet pipe, peristaltic pump, flowline and filter；The transparent outer cover
Top offer oil inlet；The output end of the oil storage pool is connect by oil inlet pipe with the oil inlet；On the oil inlet pipe
Equipped with the peristaltic pump；The flange end cap is equipped with shoe cream room, and the shoe cream room is located at the self-lubricating copper sheathing and eccentric shaft
Lower section；The bottom of the flange end cap and the side of bearing block offer the oil outlet for being connected to the shoe cream room, it is described go out
One end of oil pipe is connect after penetrating the oil outlet with the shoe cream room；The other end of the flowline by the filter with
The input terminal of the oil storage pool connects；The filter is arranged in the rack.
Mode as a further improvement, the driving device include electric machine controller and with the electric machine controller electricity
Property connection servo motor.
Mode as a further improvement, the rack include bottom plate and are separately positioned on the side plate of the bottom plate both sides,
It is equipped with top plate and transverse slat between two side plates, boss is respectively equipped on the inside of the side plate；The both sides of the transverse slat are set respectively
There is the groove to match with the boss；And it is bolted to connection between the side plate and the transverse slat；It is described equivalent
Device is arranged in the upper end of the top plate；The lower part of the servo motor is fixedly mounted on the bottom plate of the rack, described to watch
The top and the transverse slat for taking motor are bolted to connection；Through-hole is offered at the center of the transverse slat；The servo electricity
The motor shaft of machine is connect by shaft coupling with the axle center of the eccentric shaft after passing through the through-hole.
Mode as a further improvement, the driving device further include governor, the governor and the motor control
Device processed is electrically connected.
Mode as a further improvement, the piston end side of the eccentric shaft open up that there are one opening up dynamic balancing
The opening of cavity, the dynamic balancing cavity passes through sealing cover interference fit seal.
Mode as a further improvement, the transparent outer cover are perspex transparent shell.
The piston end surface of mode as a further improvement, the eccentric shaft can replace turning for various outer diameter size
Son.
Mode as a further improvement, the bearing block are fixed on by hex bolts at the top of the rack inner surface.
Mode as a further improvement, the working chamber are the state full of fluid.
Mode as a further improvement, the interior working environment for no pressure difference of the working chamber.
Compared with prior art, the utility model has the advantages that：
1, a kind of rolling piston compressor radial clearance observation of cavitation experimental provision of the utility model, by being used to synchronize
The equivalent compressor analogue observation unit simulation working chamber of rolling piston compressor, in the work of no pressure difference, pure oily working chamber
In the case of work, the cavitation situation under working chamber radial clearance is recorded by camera, to research rolling piston compressor
Cavitation situation has similar effect.
2, a kind of rolling piston compressor radial clearance observation of cavitation experimental provision of the utility model, which has, facilitates change
The advantages of radial clearance, lubricating oil viscosity, piston rotating speed, it is empty for compressor radial clearance can preferably to probe into these factors
The influence size of change.
3, the experimental work of a kind of rolling piston compressor radial clearance observation of cavitation experimental provision of the utility model
The bubble situation for taking radial clearance in journey by high-speed photography, is conveniently further processed analysis and research.
Description of the drawings
Fig. 1 is a kind of structural representation of rolling piston compressor radial clearance observation of cavitation experimental provision of the utility model
Figure；
Fig. 2 is the longitudinal sectional view of the utility model equivalent device；
Fig. 3 is the structural schematic diagram of the utility model compressor analogue observation device；
Fig. 4 is the sectional view at A in Fig. 3；
Fig. 5 is the structural schematic diagram of the utility model eccentric shaft.
Wherein, in attached drawing label for：1- racks；2- equivalent devices；3- bearing blocks；4- flange end caps；5- transparent outer covers；6-
Self-lubricating copper sheathing；7- eccentric shafts；8- rotors；9- angular contact ball bearings；10- working chambers；11- ring illumination lamps；12- high-speed photographies
Machine；13- computers；14- oil storage pools；15- oil inlet pipes；16- peristaltic pumps；17- flowlines；18- filters；19- oil inlets；20-
Shoe cream room；21- oil outlets；22- electric machine controllers；23- servo motors；24- bottom plates；25- side plates；26- top plates；27- transverse slats；
28- dynamic balancing cavitys；29- sealing covers；30- flat keys；31- shaft couplings.
Specific implementation mode
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.It should be noted that the utility model
Specific embodiment be intended merely to can clearer description technique scheme, and cannot function as one kind of scope of protection of the utility model
Limitation.
- 5 are please referred to Fig.1, a kind of rolling piston compressor radial clearance observation of cavitation experimental provision, including compressor are simulated
Observation device, camera and oil circulation device；
Compressor analogue observation device includes rack 1, equivalent device 2 and driving device；1 top of rack is equipped with equivalent dress
Set 2；Equivalent device 2 includes bearing block 3, flange end cap 4, transparent outer cover 5, self-lubricating copper sheathing 6, eccentric shaft 7, rotor 8 and corner connection
Touch ball bearing 9；Bearing block 3 is fixed on by hex bolts at the top of 1 inner surface of rack；Flange end cap 4 is fixed on 1 outer surface of rack
Top, transparent outer cover 5 is sealedly connected in flange end cap 4, and transparent outer cover 5 is perspex transparent shell 5；Perspex transparent
The inner sealing of shell 5 is connected with self-lubricating copper sheathing 6；The circle centre position of flange end cap 4 offers cap bore；The axle center of eccentric shaft 7 according to
Connect with driving device after secondary cap bore and bearing block 3 in the flange end cap 4, eccentric shaft 7 and perspex transparent shell 5 it
Between space formed simulation rolling piston compressor working chamber 10；The piston end surfaces of eccentric shaft 7 are equipped with rotor 8, and
The piston end surface of eccentric shaft 7 can replace the rotor 8 of various outer diameter size, have circular step on the axle center of eccentric shaft 7,
Angular contact ball bearing 9 is equipped in bearing block 3, step and the angular contact ball bearing 9 of eccentric shaft 7 are slidably connected, and make angular contact ball axis
Hold 9 and 7 clearance fit of eccentric shaft；
Camera includes ring illumination lamp 11, high-speed motion picture camera 12 and the calculating being electrical connected with high-speed motion picture camera 12
Ring illumination lamp 11 is located at the top of perspex transparent shell 5 by machine 13, increases illumination；High-speed motion picture camera 12 is located at rack 1
Side, and the alignment lens working chamber 10 of high-speed motion picture camera 12, by alignment work chamber 10 of focusing, find it is most suitable away from
From to obtain at radial clearance clearly cavitation image.Start to shoot after device operates steadily, and is protected by computer 13
Deposit image, convenient image procossing in the future and the research to cavitation；
Oil circulation device includes oil storage pool 14, oil inlet pipe 15, peristaltic pump 16, flowline 17 and filter 18；Organic glass
The top of glass transparent outer cover 5 offers oil inlet 19；The output end of oil storage pool 14 is connect by oil inlet pipe 15 with oil inlet 19；Into
Oil pipe 15 is equipped with peristaltic pump 16；In order to accept the lubricating oil revealed on a small quantity, flange end cap 4 has been recessed shoe cream room 20, storage
Oil pocket is located at the lower section of self-lubricating copper sheathing 6 and eccentric shaft 7；Make to leak into 4 oil storage of flange end cap in order to facilitate access flowline 17
The leakage lubricating oil of intracavitary is discharged, and the bottom of flange end cap 4 and the side of bearing block 3 offer the oil outlet for being connected to shoe cream room
21, one end of flowline 17 is connect after penetrating oil outlet 21 with shoe cream room；The other end of flowline 17 passes through filter 18 and storage
The input terminal of oil sump 14 connects；Filter 18 is arranged in rack 1.
The utility model is full of oil, and the building ring without pressure difference by simulating rolling piston compressor, in working chamber 10
Under border, using high-speed motion picture camera 12, take under the piston end operating of eccentric shaft 7, the case where the bubble that radial clearance is generated,
With this come caused by studying at rolling piston compressor radial clearance the case where cavitation.
Driving device includes electric machine controller 22, governor and servo motor 23, governor and servo motor 23 respectively with
Electric machine controller 22 is electrically connected.
As shown in figure 3, rack 1 includes bottom plate 24 and the side plate 25 for being separately positioned on 24 both sides of bottom plate, between both side plate 25
Equipped with top plate 26 and transverse slat 27, the inside of side plate 25 is respectively equipped with boss；The both sides of transverse slat 27 are respectively equipped with to match with boss
Groove；And it is bolted to connection between side plate 25 and transverse slat 27；Equivalent device 2 is arranged in the upper end of top plate 26；It watches
The lower part for taking motor 23 is fixedly mounted on the bottom plate 24 of rack 1, and top and the transverse slat 27 of servo motor 23 are bolted
Connection；Through-hole is offered at the center of transverse slat 27；The motor shaft of servo motor 23 passes through shaft coupling 31 and bias after through-hole
The axle center of axis 7 connects.
Vibration is to run phenomenon common in common mechanical device, and the piston end working portion piston center of circle of eccentric shaft 7 is inclined
The off-axis heart, in order to make eccentric shaft 7 rotate steadily, in the utility model embodiment, by the knot that eccentric shaft 7 is transformed after simulation calculation
Structure is opened up in the piston end side of eccentric shaft 7 there are one opening up dynamic balancing cavity 28, and in dynamic balancing cavity 28
Opening is sealed using the sealing cover 29 of one piece and 7 same material of eccentric shaft in the form of being interference fitted, and enters emptying aperture with oil-free,
So that the center of gravity of whole section of eccentric shaft 7 is all overlapped with 7 axle center of eccentric shaft, significantly reduces the vibration in machine running process.And
And the size design of rack 1 is also as large as possible, effectively further reduces vibration, keeps whole holding in the process of running flat
Surely.In the present embodiment, servo motor 23 is fixedly mounted at 1 inner bottom plating 24 of rack, and the other end of servo motor 23 is then by cross
Plate 27 is fixed, and according to the height of servo motor 23, when both sides process in rack 1, both sides are respectively stayed there are one boss, transverse slat 27
Both sides design is just embedded in the step of rack 1, then fixes transverse slat 27 per side with the hexagon-headed bolt of 4 M16, and servo is fixed with this
The position of motor 23.
As shown in figure 4, compressor analogue observation device is arranged in the upper surface of rack 1, bearing block 3 is according on bearing block 3
The circular hole center of circle overlap fixed installation with the circular hole center of circle that 1 top of rack opens up, and angular contact ball bearing 9 is put into bearing block 3
In, the internal diameter center of circle is overlapped with the center of circle of bearing block 3, and flange end cap 4, bottom bracket 3 are fixed on 1 outer surface top of rack
It is overlapped with the circular hole center of circle in rack 1 with the center of circle of cap bore in flange end cap 4.In 1 outer top of rack, flange end cap 4 according to
The center of circle of cap bore overlaps fixed installation with the 1 top circular hole center of circle of rack in flange end cap 4, then eccentric shaft 7 is loaded vertically into flange
The cap bore of end cap 4, and 3 circular hole of bearing bore diameter circular hole and bearing block is passed through, so far, 9 one end of angular contact ball bearing and eccentric shaft 7
Rank positioning is fixed, and the other end is fixed with the positioning of bearing block 3 and completed.While install eccentric shafts 7, in eccentric shaft 7 and servo electricity
Corresponding flat key 30 is loaded onto on the motor shaft of machine 23, and uses shaft coupling 31 by eccentric shaft 7 and motor axis connection.In eccentric shaft 7
Piston end upper rotor part 8 is installed, the organic glass shell that inner surface is then equipped with to self-lubricating bush connect with flange end cap 4
It is fixedly mounted, so that the self-lubricating bush inside diameter surface in organic glass shell is had relative motion with eccentric shaft 7, eccentric shaft is made with this
7 piston end forms a closed working chamber 10 with organic glass shell, and the use of self-lubricating copper sheathing 6 further ensures it
The leakproofness of working chamber 10.
Oil circulation device is for oil inlet, fuel-displaced and leakage lubricating oil processing, the top of perspex transparent shell 5
Processing offers a small sircle hole as oil inlet 19, is connected with an oil inlet pipe 15 by the oil inlet 19 and connects with peristaltic pump 16
It connects, the output end of oil storage pool 14 is connect by another root oil inlet pipe 15 with peristaltic pump 16；The peristaltic pump that the utility model uses
16 be two-way peristaltic pump 16, test start when by peristaltic pump 16 into working chamber 10 pump oil.Completing some model profit
After the experiment of lubricating oil, by the reversed pump oil of peristaltic pump 16, the lubricating oil in working chamber 10 is discharged, then change new model
Lubricating oil is tested, and is so recycled, is conveniently probed into influence of the different viscosities lubricating oil for cavitation.Work is rotated in eccentric shaft 7
During work, there is a little fluid by being leaked between self-lubricating copper sheathing 6 and eccentric shaft 7, the lubricating oil of leakage is stored in flange end
In the shoe cream room that lid 4 is formed, and by the flowline 17 of 3 side of 4 bottom of flange end cap and bearing block, by 10 internal leakage of working chamber
Discarded fluid export, return again to oil storage pool 14 by the filtering of filter 18
For the utility model by designing a kind of compressor analogue observation device, 10 shell whole clearing of working chamber is convenient
Observe the cavitation situation of the radial gap location in working chamber 10 in the state of no pressure difference, pure full oil.Before test starts, pass through pure oil
Rotation test, ensure the stable operation of device and without a large amount of leakage situations, experiment start, and installs specified rotor 8, i.e., really
Radial clearance appropriate is determined, by the oilhole of organic glass cover top portion, has been pumped to the working chamber 10 of device using peristaltic pump 16
Enter specified model lubricating oil and bubble is discharged, after lubricating peristaltic pump 16 completely and bubble is discharged in full, begins through motor
Controller 22 adjusts servo motor 23 and rotates, and since low speed, after device operates steadily, is taken the photograph using the control high speed of computer 13
Shadow is shot, the 3 second time of every group of shooting, and the motor shaft for adjusting servo motor 23 after the completion stops operating, and is preserved corresponding
Image, so far, one group of specified gap, oil number under a kind of rotating speed cavitation situation experiment complete.Each different turns are completed with this
Observation of cavitation experiment under speed.After the completion of the every speed experiment under specified gap, oil number.It is arranged using 16 negative direction of peristaltic pump
Oil number in working chamber 10 is excluded totally, to be then pumped into the lubricating oil of other models, continue to test by oil.When the profit of holotype number
After the completion of lubricating oil experiment, organic glass shell is dismantled, the rotor 8 on piston is removed, changes the rotor 8 of other outer diameter sizes, with
Change radial clearance.Organic glass shell is reinstalled again, continues to be pumped into specified model lubricating oil after the completion of fixed, so weight
Experimental procedure more than multiple, preserves corresponding cavitation image, facilitates the processing in later stage and the research of cavitation.
Above description is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
The patent claim of the utility model, the same changes or modifications completed under the technical spirit suggested by all the utility model
Change, should all belong to the covered the scope of the claims of the utility model.
Claims (10)
1. a kind of rolling piston compressor radial clearance observation of cavitation experimental provision, it is characterised in that：It simulates and sees including compressor
Survey device, camera and oil circulation device；
The compressor analogue observation device includes rack, equivalent device and driving device；The upper rack is equipped with described
Equivalent device；The equivalent device includes bearing block, flange end cap, transparent outer cover, self-lubricating copper sheathing, eccentric shaft, rotor and angle
Contact ball bearing；The bearing block is fixed at the top of the rack inner surface；The flange end cap is fixed on the rack appearance
Face top is sealedly connected with transparent outer cover in the flange end cap, and the inner sealing of the transparent outer cover is connected with self-lubricating copper
Set；The circle centre position of the flange end cap offers cap bore；The axle center of the eccentric shaft sequentially passes through the lid in the flange end cap
It is connect with the driving device behind hole and bearing block, the space between the eccentric shaft and transparent outer cover forms simulation rolling piston
The working chamber of compressor；The piston end surfaces of the eccentric shaft are equipped with rotor, have annular shape on the axle center of the eccentric shaft
Step, the bearing block is interior to be equipped with angular contact ball bearing, and the step of the eccentric shaft is slidably connected with the angular contact ball bearing；
The camera includes ring illumination lamp, high-speed motion picture camera and the calculating being electrical connected with the high-speed motion picture camera
Machine, the ring illumination lamp position is in the top of the transparent outer cover；The high-speed motion picture camera is located at the side of the rack, and high
Working chamber described in the alignment lens of fast video camera；
The oil circulation device includes oil storage pool, oil inlet pipe, peristaltic pump, flowline and filter；The transparent outer cover it is upper
Portion offers oil inlet；The output end of the oil storage pool is connect by oil inlet pipe with the oil inlet；The oil inlet pipe is equipped with
The peristaltic pump；The flange end cap is equipped with shoe cream room, and the shoe cream room is located under the self-lubricating copper sheathing and eccentric shaft
Side；The bottom of the flange end cap and the side of bearing block offer the oil outlet for being connected to the shoe cream room, the flowline
One end penetrate the oil outlet after connect with the shoe cream room；The other end of the flowline by the filter with it is described
The input terminal of oil storage pool connects；The filter is arranged in the rack.
2. a kind of rolling piston compressor radial clearance observation of cavitation experimental provision according to claim 1, feature exist
In：The driving device includes electric machine controller and the servo motor that is electrically connected with the electric machine controller.
3. a kind of rolling piston compressor radial clearance observation of cavitation experimental provision according to claim 2, feature exist
In：The rack includes bottom plate and is separately positioned on the side plate of the bottom plate both sides, and top plate and cross are equipped between two side plates
Plate is respectively equipped with boss on the inside of the side plate；The both sides of the transverse slat are respectively equipped with the groove to match with the boss；And
And it is bolted to connection between the side plate and the transverse slat；The equivalent device is arranged in the upper end of the top plate；Institute
The lower part for stating servo motor is fixedly mounted on the bottom plate of the rack, and the top of the servo motor passes through spiral shell with the transverse slat
Bolt is fixedly connected；Through-hole is offered at the center of the transverse slat；The motor shaft of the servo motor passes through after passing through the through-hole
Shaft coupling is connect with the axle center of the eccentric shaft.
4. a kind of rolling piston compressor radial clearance observation of cavitation experimental provision according to claim 2, feature exist
In：The driving device further includes governor, and the governor is electrically connected with the electric machine controller.
5. a kind of rolling piston compressor radial direction observation of cavitation experimental provision according to claim 1, it is characterised in that：Institute
The piston end side for stating eccentric shaft is opened up there are one opening up dynamic balancing cavity, and the opening of the dynamic balancing cavity passes through
Sealing cover interference fit seal.
6. a kind of rolling piston compressor radial clearance observation of cavitation experimental provision according to claim 1, feature exist
In：The transparent outer cover is perspex transparent shell.
7. a kind of rolling piston compressor radial direction observation of cavitation experimental provision according to claim 1, it is characterised in that：Institute
The rotor of various outer diameter size can be replaced by stating the piston end surface of eccentric shaft.
8. a kind of rolling piston compressor radial direction observation of cavitation experimental provision according to claim 1, it is characterised in that：Institute
Bearing block is stated to be bolted at the top of the rack inner surface.
9. a kind of rolling piston compressor radial direction observation of cavitation experimental provision according to claim 1, it is characterised in that：Institute
It is the state full of fluid to state working chamber.
10. a kind of rolling piston compressor radial direction observation of cavitation experimental provision according to claim 1, it is characterised in that：
It is the working environment of no pressure difference in the working chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440935.5U CN208024542U (en) | 2018-03-29 | 2018-03-29 | A kind of rolling piston compressor radial direction observation of cavitation experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440935.5U CN208024542U (en) | 2018-03-29 | 2018-03-29 | A kind of rolling piston compressor radial direction observation of cavitation experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024542U true CN208024542U (en) | 2018-10-30 |
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ID=63909875
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820440935.5U Expired - Fee Related CN208024542U (en) | 2018-03-29 | 2018-03-29 | A kind of rolling piston compressor radial direction observation of cavitation experimental provision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443134A (en) * | 2018-03-29 | 2018-08-24 | 广西大学 | A kind of rolling piston compressor radial direction observation of cavitation experimental provision |
-
2018
- 2018-03-29 CN CN201820440935.5U patent/CN208024542U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443134A (en) * | 2018-03-29 | 2018-08-24 | 广西大学 | A kind of rolling piston compressor radial direction observation of cavitation experimental provision |
| CN108443134B (en) * | 2018-03-29 | 2023-08-01 | 广西大学 | Radial cavitation observation experimental device of rolling piston compressor |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20210329 |