CN106762648A - Compressor, refrigeration system and automobile - Google Patents
Compressor, refrigeration system and automobile Download PDFInfo
- Publication number
- CN106762648A CN106762648A CN201710062725.7A CN201710062725A CN106762648A CN 106762648 A CN106762648 A CN 106762648A CN 201710062725 A CN201710062725 A CN 201710062725A CN 106762648 A CN106762648 A CN 106762648A
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- Prior art keywords
- compressor
- compression chamber
- piston
- slide plate
- housing
- Prior art date
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 48
- 238000007906 compression Methods 0.000 claims abstract description 48
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of compressor, refrigeration system and automobile, the compressor uses CO2Refrigerant and including：Housing；Compression mechanism, the compression mechanism is located in the housing and including at least one cylinder, the cylinder has the compression chamber that cross section is circle and the cylinder is provided with the vane slot connected with the compression chamber, it is provided with the compression chamber and can be rolled along the perisporium of the compression chamber and relative to the piston of the compression chamber eccentric setting, slide plate that is removable along the vane slot and being only against on the piston is provided with the vane slot；Motor, the motor is located in the housing and is connected with the piston drive, wherein, the piston is e relative to the offset of the compression chamber, and the length of the slide plate is L and thickness is T, 17.1≤LT/e≤23.9.Compressor according to embodiments of the present invention uses CO2Refrigerant and the small, range of stress is worn away rationally, with high reliability.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of compressor, the refrigeration with the compressor
System and the automobile with the refrigeration system.
Background technology
For compressor, every dimensional parameters of its compression mechanism have most important to the properties of compressor
Influence, the interaction schemes to compressor parameters are proposed to reach preferable performance, in correlation technique, for example, cylinder
The friendship of interaction schemes, the interaction schemes of cylinder bore diameter and piston external diameter, slide plate thickness and cylinder bore diameter highly with cylinder bore diameter
Mutual scheme, but above-mentioned interaction schemes are directed to the compressor using refrigerants such as R410A, R22, R134a, and for using CO2
For the compressor of refrigerant, due to CO2The operating pressure of refrigerant compares the operating pressure of the refrigerants such as R410A, R22, R134a significantly
Improve, therefore above-mentioned interaction schemes are not particularly suited for using CO2The compressor of refrigerant, and above-mentioned interaction schemes are all based on two
The interaction of parameter, it is impossible to which satisfaction uses CO2The performance of the compressor of refrigerant is improved.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem in correlation technique to a certain extent.Therefore, this hair
Bright to propose a kind of compressor, the compressor uses CO2Refrigerant and the small, range of stress is worn away rationally, with high reliability.
The present invention also proposes a kind of refrigeration system with the compressor.
The present invention also proposes a kind of automobile with the refrigeration system.
To achieve the above object, embodiment according to the first aspect of the invention proposes a kind of compressor, the compressor
Using CO2Refrigerant and including：Housing；Compression mechanism, the compression mechanism is located in the housing and including at least one cylinder,
The cylinder has the compression chamber that cross section is circle and the cylinder is provided with the vane slot connected with the compression chamber, described
It is provided with compression chamber and can be rolled along the perisporium of the compression chamber and relative to the piston of the compression chamber eccentric setting, the slide plate
Slide plate that is removable along the vane slot and being only against on the piston is provided with groove；Motor, the motor is located at the housing
It is interior and be connected with the piston drive, wherein, the piston is e, the length of the slide plate relative to the offset of the compression chamber
Spend for L and thickness is T, 17.1≤LT/e≤23.9.
Compressor according to embodiments of the present invention uses CO2Refrigerant and wear away the small, range of stress rationally, it is high with reliability
The advantages of.
In addition, compressor according to embodiments of the present invention can also have following additional technical characteristic：
According to one embodiment of present invention, 1.8mm≤e.
According to one embodiment of present invention, e≤3.6mm.
According to one embodiment of present invention, 1.8mm≤e≤3.6mm.
According to one embodiment of present invention, the CO2The operating pressure of refrigerant is 3.5MPa~14.5MPa.
According to one embodiment of present invention, it is circular inner chamber, the diameter of the inner chamber that the housing has cross section
It is Dca, 80mm≤Dca≤120mm.
According to one embodiment of present invention, compression spring is provided with the vane slot, the slide plate is in the compression bullet
Often only it is against on the outer peripheral face of the piston under the elastic force of spring.
According to one embodiment of present invention, the compressor also includes：Reservoir, the reservoir is located at the housing
Outward, the compression chamber has the air entry connected with the reservoir.
Embodiment according to the second aspect of the invention proposes a kind of refrigeration system, refrigeration system according to embodiments of the present invention
System includes the compressor described in embodiment according to the first aspect of the invention.
Refrigeration system according to embodiments of the present invention, by using compressor according to the above embodiment of the present invention, has
High reliability.
Embodiment according to the third aspect of the invention we proposes a kind of automobile, and the automobile includes of the invention second
Refrigeration system described in the embodiment of aspect.
Automobile according to embodiments of the present invention, by using refrigeration system according to the above embodiment of the present invention, with property
Can be reliable the advantages of.
Brief description of the drawings
Fig. 1 is the structural representation of compressor according to embodiments of the present invention.
Fig. 2 is the structural representation of the compression mechanism of compressor according to embodiments of the present invention.
Fig. 3 is the vane slot and slide vane structure schematic diagram of compressor according to embodiments of the present invention.
Fig. 4 is the afterbody schematic diagram of the vane slot of compressor according to embodiments of the present invention.
Fig. 5 is the stress diagram of the slide plate of compressor according to embodiments of the present invention.
Fig. 6 is the graph of a relation of the vane slot abrasion with endurance of compressor according to embodiments of the present invention.
Fig. 7 be vane slot tail section stress and the slide plate slot length of compressor according to embodiments of the present invention, thickness and
The graph of a relation of piston offset.
Fig. 8 is the graph of a relation of the Energy Efficiency Ratio with piston offset of compressor according to embodiments of the present invention.
Reference：
Compressor 1,
Housing 10, cylinder 20, compression chamber 21, vane slot 22, section 23, piston 30, slide plate 40, compression spring 50, liquid storage
Device 60, motor 70.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In correlation technique, for the compressor using the refrigerant such as R410A, R22, R134a, it is proposed that two dimensional parameters
Interaction schemes, for example, in order to improve Energy Efficiency Ratio, cylinder height is less than or equal to 0.4, cylinder bore diameter and work with the ratio of cylinder bore diameter
The ratio in footpath is more than or equal to more than or equal to 0.452 and less than or equal to the ratio of 0.520, slide plate thickness and cylinder bore diameter beyond the Great Wall
0.041 and less than or equal to 0.067, slide plate length and piston offset ratio more than or equal to 0.165 and less than or equal to 0.225.
And for using CO2The compressor of refrigerant, due to CO2The operating pressure of refrigerant is far longer than R410A, R22, R134a
Deng the operating pressure of refrigerant, therefore such scheme is not suitable for or part is not suitable for using CO2The compressor of refrigerant, and it is above-mentioned
Scheme is intended to improve Energy Efficiency Ratio, and reliability is not almost lifted, the use CO larger for operating pressure2The pressure of refrigerant
Contracting machine, the reliability outstanding problem that exactly it faces.
In view of the compressor situation in correlation technique, the present invention proposes that one kind is applicable for use with CO2The compressor of refrigerant
And the technical scheme of reliability can be improved.
Below with reference to the accompanying drawings compressor 1 according to embodiments of the present invention is described.
As Figure 1-Figure 8, compressor 1 according to embodiments of the present invention uses CO2Refrigerant and including housing 10, compressor
Structure and motor 70.
The compression mechanism is located in housing 10 and including at least one cylinder 20.Cylinder 20 is circular with cross section
Compression chamber 21, cylinder 20 is provided with the vane slot 22 connected with compression chamber 21, compression chamber 21 perisporium being provided with along compression chamber 21
Can roll and relative to the piston 30 of the eccentric setting of compression chamber 21, be provided with removable along vane slot 22 in vane slot 22 and be only against
Slide plate 40 on piston 30.Motor 70 is located in housing 10 and is connected with piston 30, for driving piston 30 to roll.
Wherein, piston 30 is e relative to the offset of compression chamber 21, and the length of slide plate 40 is L, and the thickness of slide plate 40 is T,
17.1≤L·T/e≤23.9。
As shown in figure 3, the thickness of vane slot 22 is T ', and in order to form lubricating oil film, T ' ≈ (1.004~1.008) T,
There is certain interval between slide plate 40 and vane slot 22.When compressor 1 is operated, as shown in figure 5, the air-breathing lateral pressure of slide plate 40
Ps is less than exhaust lateral pressure Pd, the meeting run-off the straight under differential pressure action of slide plate 40, and slide plate 40 is with respect to the inclination angle of vane slot 22
θ, it is to be understood that work as the timings of T/T ', L/e is smaller, then θ is bigger, and the stress of slide plate 40 is poorer, the abrasion of vane slot 22
Can be bigger.Meanwhile, the thickness T of slide plate 40 is smaller, and the deflection of slide plate 40 is bigger, and the abrasion of slide plate 40 are also bigger.For adopting
Use CO2The compressor 1 of refrigerant, because the value of Pd-Ps is far longer than the refrigerant using refrigerants such as R410A, R22, R134a, therefore
Above mentioned problem is more prominent.It is necessary to optimize the scope of L, e, T, compressor 1 according to embodiments of the present invention is by setting
Meter tri- interaction schemes of dimensional parameters of L, e, T such that it is able to reduce abrasion, proof stress scope, and then reach raising compression
The effect of machine reliability.
Tri- interaction schemes of dimensional parameters of L, e, T of compressor 1 according to embodiments of the present invention are detailed below
Design process, and by testing the technique effect confirmed under the interaction schemes.
In general, the abrasion of compressor sliding pair are the important indicators for weighing its reliability.It has been found that slide plate 40
Abrasion loss there is certain correlation with LT/e, Fig. 6 shows the result schematic diagram of long duration test, and wherein abscissa is
Endurance t, ordinate is that vane slot 22 wears away Δ, and what dotted line was illustrated is permission attrition value.As can be seen that when identical is durable
Between under, LT/e is smaller, and the abrasion of vane slot 22 are bigger.When LT/e=15.5,15.9,16.5, endurance reaches 2500h
When, vane slot 22 wears away still the increased trend of continuation, that is, wearing away still has progressive.As LT/e=17.1, endurance
When reaching about 1000h, vane slot 22 wears away not to be increased, that is, wear away without progressive.Thus, when LT/e >=17.1, slide plate
The abrasion of groove 22 can be controlled in allowed band.
Further, the length L of slide plate 40 is also limited by physical dimension.Specifically, as Figure 2-Figure 5, cylinder 20
The afterbody wall thickness m of the vane slot 22 and length L of slide plate 40 and the thickness T-phase of slide plate 40 are closed.As the internal diameter Dca and compression chamber of cylinder 20
21 timing of diameter Dcy mono-, the length L of slide plate 40 is unsuitable long, the thickness T of slide plate 40 is also unsuitable blocked up, otherwise cylinder 20
The afterbody wall thickness m of vane slot 22 can be too small, and the stress in the section 23 can exceed the allowable stress range of cylinder material, cause cylinder 20
Integrity problem.For CO2Cold medium compressor, the pressure difference inside and outside cylinder 20 is larger, and this problem is more prominent.Application human hair
Existing, the afterbody maximum stress of vane slot 22 of cylinder 20 is also related to LT/e, and Fig. 7 shows that Dca and Dcy keeps constant, LT/
When e gradually increases, the change of the tail section stress σ of vane slot 22, wherein dotted line illustrate that stress value need to be used, it can be seen that work as L
T/e>When 23.9, the stress σ of the tail section of vane slot 22 exceeds the allowable stress of material, thus, when LT/e≤23.9, energy
Enough ensure the stress σ of the tail section of vane slot 22 in the allowable stress range of material.
Therefore, compressor 1 according to embodiments of the present invention uses CO2Refrigerant and the small, range of stress is worn away rationally, with can
By property it is high the advantages of.
It will be understood that compressor 1 according to embodiments of the present invention, its compression mechanism can be with for those skilled in the art
Including more than one cylinder, such as twin-tub, three cylinders, four cylinders etc., wherein, any in these cylinders can meet above-mentioned chi
Very little parameter, it is preferable that all cylinders are satisfied by above-mentioned dimensional parameters.
Below with reference to the accompanying drawings compressor 1 according to the specific embodiment of the invention is described.
As Figure 1-Figure 8, compressor 1 according to embodiments of the present invention uses CO2Refrigerant and including housing 10, compressor
Structure and motor 70.
Specifically, as shown in figure 1, being provided with compression spring 50 in vane slot 22, slide plate 40 is under the elastic force of compression spring 50
Often only it is against on the outer peripheral face of piston 30, to ensure the sealing between slide plate 40 and piston 30, and does not influence the inclined of piston 30
The heart is rolled.
Further, as shown in figure 1, compressor 1 also includes reservoir 60, reservoir 60 is located at outside housing 10, compression chamber
21 have the air entry connected with reservoir 60, the storage low pressure refrigerant of reservoir 60, and play the effect such as gas-liquid separation, filtering.
In some specific embodiments of the invention, in order to improve volumetric efficiency with improving energy efficiency ratio, piston 30 relative to
The eccentric amount e of compression chamber 21 is more than or equal to 1.8 millimeters, i.e. 1.8mm≤e, and in order to reduce friction loss, piston 30 is relative to pressure
The eccentric amount e in contracting chamber 21 is less than or equal to 3.6 millimeters, i.e. e≤3.6mm.
Preferably, 1.8mm≤e≤3.6mm.Thus not only with improving energy efficiency ratio, and friction loss can be controlled, i.e.,
The Energy Efficiency Ratio and reliability of compressor 1 are taken into account simultaneously, and Fig. 8 shows the relation of Energy Efficiency Ratio and eccentric amount e, it can be seen that work as e=
During 1.8~3.6mm, the Energy Efficiency Ratio of compressor is optimal.
In some specific examples of the invention, the CO2The operating pressure of refrigerant is 3.5MPa~14.5MPa, compared with
The operating pressure of the refrigerants such as R410A, R22, R134a is greatly improved, and the internal diameter Dca of housing 10 should not design excessive, because Dca gets over
Greatly, such as to meet CO2 refrigerants operating pressure requirement, then the wall thickness of housing 10 will design it is thicker, compressor 1 will be more stupid
Weight.Compressor 1 according to embodiments of the present invention, the size design of Dca in 80-120mm, i.e. 80mm≤Dca≤120mm so that
Both CO can be met2The swept volume of refrigerant, can control the wall thickness of housing 10 again, so as to ensure the volume and weight of compressor 1
Amount.
Below with reference to the accompanying drawings refrigeration system according to embodiments of the present invention is described.Refrigeration system according to embodiments of the present invention
Including compressor according to the above embodiment of the present invention 1.
Refrigeration system according to embodiments of the present invention, by using compressor according to the above embodiment of the present invention 1, has
High reliability.
Below with reference to the accompanying drawings automobile according to embodiments of the present invention is described.Automobile according to embodiments of the present invention includes basis
The refrigeration system of the above embodiment of the present invention.
Automobile according to embodiments of the present invention, by using refrigeration system according to the above embodiment of the present invention, with property
Can be reliable the advantages of.
Refrigeration system according to embodiments of the present invention and other compositions of automobile and operation are for ordinary skill
All it is known for personnel, is not detailed herein.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention is described with simplified, must have specific orientation, Yi Te rather than the device or element for indicating or imply meaning
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element.For the ordinary skill in the art, can be according to specific feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
What combined in an appropriate manner in one or more embodiments or example.Additionally, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of compressor, it is characterised in that the compressor uses CO2Refrigerant and including：
Housing；
Compression mechanism, the compression mechanism is located in the housing and including at least one cylinder, and the cylinder has cross section
For circular compression chamber and the cylinder is provided with the vane slot connected with the compression chamber, it is provided with along described in the compression chamber
The perisporium of compression chamber can be rolled and relative to the piston of the compression chamber eccentric setting, is provided with the vane slot along the slide plate
Groove is removable and stops the slide plate being against on the piston；
Motor, the motor is located in the housing and is connected with the piston drive,
Wherein, the piston is e relative to the offset of the compression chamber, and the length of the slide plate is L and thickness is T, 17.1
≤L·T/e≤23.9。
2. compressor according to claim 1, it is characterised in that 1.8mm≤e.
3. compressor according to claim 1, it is characterised in that e≤3.6mm.
4. compressor according to claim 1, it is characterised in that 1.8mm≤e≤3.6mm.
5. compressor according to claim 1, it is characterised in that the CO2The operating pressure of refrigerant be 3.5MPa~
14.5MPa。
6. compressor according to claim 1, it is characterised in that it is circular inner chamber, institute that the housing has cross section
State a diameter of Dca of inner chamber, 80mm≤Dca≤120mm.
7. the compressor according to any one of claim 1-6, it is characterised in that compression bullet is provided with the vane slot
Spring, the slide plate is often only against on the outer peripheral face of the piston under the elastic force of the compression spring.
8. the compressor according to any one of claim 1-6, it is characterised in that also include：
Reservoir, the reservoir is located at outside the housing, and the compression chamber has the air entry connected with the reservoir.
9. a kind of refrigeration system, it is characterised in that including the compressor according to any one of claim 1-8.
10. a kind of automobile, it is characterised in that including refrigeration system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062725.7A CN106762648B (en) | 2017-01-24 | 2017-01-24 | Compressor, refrigerating system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062725.7A CN106762648B (en) | 2017-01-24 | 2017-01-24 | Compressor, refrigerating system and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762648A true CN106762648A (en) | 2017-05-31 |
| CN106762648B CN106762648B (en) | 2020-11-24 |
Family
ID=58956204
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710062725.7A Active CN106762648B (en) | 2017-01-24 | 2017-01-24 | Compressor, refrigerating system and car |
Country Status (1)
| Country | Link |
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| CN (1) | CN106762648B (en) |
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| CN110863987A (en) * | 2019-11-29 | 2020-03-06 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
| CN111033049A (en) * | 2017-08-24 | 2020-04-17 | 富士通将军股份有限公司 | Rotary compressor |
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| US11333149B2 (en) | 2017-08-24 | 2022-05-17 | Fujitsu General Limited | Rotary compressor |
| CN110863987A (en) * | 2019-11-29 | 2020-03-06 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
| CN110863987B (en) * | 2019-11-29 | 2021-08-27 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
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| CN106762648B (en) | 2020-11-24 |
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