CN206988117U - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN206988117U CN206988117U CN201720698836.2U CN201720698836U CN206988117U CN 206988117 U CN206988117 U CN 206988117U CN 201720698836 U CN201720698836 U CN 201720698836U CN 206988117 U CN206988117 U CN 206988117U
- Authority
- CN
- China
- Prior art keywords
- oil
- disk
- compression assembly
- pressure chamber
- compressor
- 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.)
- Active
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a kind of compressor, including：Shell, compression assembly, gs-oil separator, support plate, bent axle and oil return pipe.One end of shell is with oil back chamber and the other end is with accumulator；Compression assembly is set inside the shell, has back pressure chamber and discharge chambe in compression assembly；Gs-oil separator has refrigerant exit and gs-oil separator connection discharge chambe and accumulator；Support plate is located on the inside of compression assembly；Bent axle is rotatably arranged in shell and is connected with compression assembly, has the passage of connection oil back chamber and back pressure chamber in bent axle；Oil return pipe connects with accumulator and oil back chamber respectively.According to the compressor of the utility model embodiment, lubrication and sealing effectiveness are improved.
Description
Technical field
The utility model design motivation equipment technical field, more particularly to a kind of compressor.
Background technology
The compressor of correlation technique, it can cause sealing deficiency when oil is very few, increase the leakage in compression process, and oil is excessive
When, the oil of HTHP can heat to refrigerant, cause refrigerant density to reduce, so as to cause volume efficiency to decline, refrigeration oil
Motor can also be heated during the effect of supply pressure and deadweight returns to fuel tank, be unfavorable for carrying for compressor efficiency
It is high.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of compressor, high lubricating effect with a new purpose.
According to the compressor of the utility model embodiment, including：Shell, compression assembly, gs-oil separator, support plate, song
Axle and oil return pipe.One end of the shell is with oil back chamber and the other end is with accumulator；The compression assembly is located at described outer
On the inside of shell, there is back pressure chamber and discharge chambe in the compression assembly；The gs-oil separator has refrigerant exit and the oil gas
Separator connects the discharge chambe and accumulator；The support plate is located on the inside of the compression assembly；The bent axle is rotationally
It is located in the shell and is connected with the compression assembly, has in the bent axle and connect the oil back chamber and the back pressure chamber
Passage；The oil return pipe connects with the accumulator and the oil back chamber respectively.
According to the compressor of the utility model embodiment, a complete fluid loop is formd, it is possible to achieve to compression
The overall lubrication of machine and fluid recovery, moreover, by oil return pipe oil return, can improve the efficiency especially circulated, avoid fluid
Refrigerant or motor are heated when excessive, improve lubrication and sealing effectiveness.
In addition, according to the compressor of the utility model above-described embodiment, there can also be technical characteristic additional as follows：
There is the oil return opening for connecting the oil back chamber in one embodiment of the present utility model, on the outer side face
And the oil-out of the connection accumulator.
In one embodiment of the present utility model, the oil return pipe is located at the outer side.
In one embodiment of the present utility model, the exit of the discharge chambe is provided with pressure limiting valve block, the pressure limiting valve
Piece is used to opening and separating the discharge chambe and the gs-oil separator.
In one embodiment of the present utility model, the compression assembly includes：Be vortexed quiet disk and eddy spinner disk.The whirlpool
Discharge chambe is limited between rotating disk and the quiet disk that is vortexed, and the eddy spinner disk is internally formed the back pressure chamber, wherein, institute
State bent axle with the eddy spinner disk to be connected, the support plate is fixed with the quiet disk relative position that is vortexed.
Have in one embodiment of the present utility model, on the eddy spinner disk from the back pressure chamber and be communicated to the whirlpool
First oil circuit entrance of the friction pair formed between rotating disk and the support plate and it is communicated to the vortex from the back pressure chamber
Second oil circuit entrance of the friction pair formed between quiet disk and the quiet disk that is vortexed.
Have in one embodiment of the present utility model, on the eddy spinner disk and connect the back pressure chamber and the compression
3rd oil circuit entrance of room.
In one embodiment of the present utility model, the side face of the eddy spinner disk is matched somebody with somebody with quiet disk, the support plate of being vortexed
Close the cavity for forming connection back pressure chamber.
In one embodiment of the present utility model, the porch of the passage is provided with the first filtration members, the accumulator
Oil-out at be provided with the second filtration members.
In one embodiment of the present utility model, the axis horizontal of the shell.
Brief description of the drawings
Fig. 1 is the schematic diagram of the compressor of the utility model one embodiment.
Fig. 2 is the schematic diagram of the compression assembly of compressor in Fig. 1.
Fig. 3 and Fig. 4 is the schematic diagram of the exhaust end cover of compressor in Fig. 1.
Fig. 5 is the schematic diagram that oil return pipe coordinates with air inlet end cap and exhaust end cover in compressor shown in Fig. 1.
Fig. 6 and Fig. 7 is the schematic diagram of the compressor of another embodiment of the utility model.
Reference：
Compressor 100,
Gs-oil separator 20,
Support plate 8, bent axle 6, oil return pipe 24, accumulator 18, back pressure chamber 13, discharge chambe 10, refrigerant exit 21, accumulator 18
Oil-out 19, the oil return opening 2a of oil back chamber, pressure limiting valve block 12,
First oil circuit entrance 7a, the second oil circuit entrance 7b, the 3rd oil circuit entrance 7c, the first filtration members 3, the second filtration members
16,
Oil pump 4,5, the oil gas vent passage 11 of discharge chambe 10, separator oil outlet 15, separator inlet 14, oil gas high pressure chest
17, oil return tube inlet 23, oil return pipe outlet 25,
Oil back chamber 101, passage 102, cavity 103,
Shell：Housing 1, air inlet end cap 2, exhaust end cover 22,
Compression assembly：Eddy spinner disk 7, be vortexed quiet disk 9.
Embodiment
Embodiment of the present utility model is described below in detail, the example of embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the utility model, and it is not intended that to limit of the present utility model
System.
The compressor 100 of the utility model embodiment is described with reference to the accompanying drawings.
Such as Fig. 1 to Fig. 7, according to the compressor 100 of the utility model embodiment, including：Shell, compression assembly, oil gas point
From device 20, support plate, bent axle 6 and oil return pipe 24.
Specifically, one end of shell is with oil back chamber 101 and the other end is with accumulator 18.Compression assembly is located at shell
Inner side, compression assembly is interior to have back pressure chamber 13 and discharge chambe 10.Gs-oil separator 20 has refrigerant exit 21 and gs-oil separator
20 connection discharge chambes 10 and accumulator 18, in other words, gs-oil separator 20 have refrigerant exit 21, separator inlet 14, divided
From device oil export 15, the separator inlet 14 of gs-oil separator 20 is connected with discharge chambe 10 (such as to compress in predefined conditions
Air pressure in room 10 reaches preset pressure；Or controlled by other conditions；Or connection etc. all the time) connection, oil-containing refrigerant is by compressing
Room 10 enters gs-oil separator 20, and gs-oil separator 20 carries out Oil-gas Separation, and the refrigerant after separation is discharged by refrigerant exit 21,
Oil after separation is connected by the discharge of separator oil outlet 15, separator oil outlet 15 with accumulator 18, from separator oil outlet 15
The oil of discharge is entered in accumulator 18.
Support plate is located on the inside of compression assembly.Bent axle 6 is rotatably arranged in shell and is connected with compression assembly, bent axle 6
For transmitting power to compression assembly, there is the passage 102 of connection oil back chamber 101 and back pressure chamber 13 in bent axle 6, fluid can be from
Oil back chamber 101 enters back pressure chamber 13.Oil return pipe 24 connects with accumulator 18 and oil back chamber 101 respectively, and fluid can be from oil storage
Room 18 enters oil back chamber 101.Wherein, fluid enters back pressure chamber 13, Ran Houjing from oil back chamber 101 by the internal channel 102 of bent axle 6
Oil back chamber 101 is back to by discharge chambe 10, accumulator 18, oil return pipe 24, forms loop structure.
According to the compressor 100 of the utility model embodiment, a complete fluid loop is formd, it is possible to achieve to pressure
The overall lubrication of contracting machine 100 and fluid recovery, moreover, by the oil return of oil return pipe 24, can improve the efficiency especially circulated, keep away
Refrigerant or motor are heated when oil-free is excessive, improve lubrication and sealing effectiveness.
In addition, according to the compressor 100 of the utility model above-described embodiment, there can also be technology additional as follows special
Sign：
Such as Fig. 1 to Fig. 5, there is connection oil back chamber 101 in one embodiment of the present utility model, on outer side face
Oil return opening 2a and the oil-out 19 for connecting accumulator 18.That is, going out the entrance of oil back chamber 101 and accumulator 18
Hydraulic fluid port draws shell, so as to realize the purpose from the outside oil return of shell, simplifies the structure of compressor 100, moreover, outside
Oil return can facilitate the I＆ M of compressor 100, improve the I＆ M effect of compressor 100 and reduce cost.
Further, oil return pipe 24 is located at outer side.Advantageously, the both ends of oil return pipe 24 connect accumulator 18 respectively
The oil return opening 2a of oil-out 19 and oil back chamber 101, solve the problems, such as that internal oil return pipe 24 installs inconvenience using outside oil return.
Certainly, in the utility model, the oil-out 19 of accumulator 18, the oil return opening 2a of oil back chamber 101 and oil return pipe 24
Enclosure can also be located at, that is to say, that use internal oil return.
Such as Fig. 1, in one embodiment of the present utility model, the exit of discharge chambe 10 is provided with pressure limiting valve block 12, pressure limiting
Valve block 12 is used to opening and separating discharge chambe 10 and gs-oil separator 20.That is, by pressure limiting valve block 12 to discharge chambe 10
Carry out pressure limiting, the sealing of compressor 100 can be ensured during insufficient pressure in compressor 100, improve the effect of compressor 100
Rate.
Such as Fig. 1, in one embodiment of the present utility model, compression assembly includes：Be vortexed quiet disk 9 and eddy spinner disk 7.Whirlpool
Limit discharge chambe 10 between rotating disk 7 and the quiet disk 9 of being vortexed, and eddy spinner disk 7 is internally formed back pressure chamber 13, wherein, bent axle 6 with
Eddy spinner disk 7 is connected, and support plate is fixed with the quiet relative position of disk 9 that is vortexed.
Further, have such as Fig. 1, on eddy spinner disk 7 from back pressure chamber 13 and be communicated to shape between eddy spinner disk 7 and support plate
Into friction pair the first oil circuit entrance 7a and be communicated to from back pressure chamber 13 rubbing of being vortexed that quiet disk 9 and being vortexed formed between quiet disk 9
Wipe the second secondary oil circuit entrance 7b.Therefore, lubricating oil can be entered between friction pair, and the contact surface of friction pair is moistened
It is sliding, greatly improve lubricant effect so that compressor 100 is stable, and reduces heating and the energy consumption of compressor 100, carries
High energy source utilization rate.
Preferably, such as Fig. 1, there is the 3rd oil circuit entrance 7c of connection back pressure chamber 13 and discharge chambe 10 on eddy spinner disk 7.
Further, as Fig. 1, the side face of eddy spinner disk 7 cooperatively form be vortexed quiet disk 9, support plate and connect back pressure chamber 13
Cavity 103.Lubricant effect can be improved, and the stable operation of eddy spinner disk 7 is realized by air pressure, so as to improve compressor
100 resistance to overturning.
Such as Fig. 1, in one embodiment of the present utility model, the porch of passage 102 is provided with the first filtration members 3, oil storage
The second filtration members 16 are provided with the oil-out of room 18.
Reference picture 1, in one embodiment of the present utility model, the axis horizontal of shell.That is, the utility model
Compressor 100 be horizontal compressor 100, for on-board air conditioner etc., horizontal compressor 100 is advantageously in other zero
The arrangement of part, can reduce the vehicle height of automobile, while reduce the inner high voltage region of compressor 100, relative to domestic air conditioning
Speech, this is safer to automobile.
In addition, compressor 100 of the present utility model can apply in the equipment such as on-board air conditioner, car refrigerator, equally
It can apply in the equipment such as domestic air conditioning.
The compressor 100 of one specific embodiment of the utility model is described with reference to the accompanying drawings.
Wherein, shell includes housing 1 and closes the air inlet end cap 2 and exhaust end cover 22 at the both ends of housing 1.
As shown in Figures 1 to 5, a kind of oil return mechanism of compressor 100 of the utility model, the oil return mechanism pass through the row of being arranged at
The gs-oil separator 20 of gas end cap 22 enters accumulator 18 after carrying out Oil-gas Separation, connects time of accumulator 18 and oil back chamber 101
Oil pipe 24 is by fluid water conservancy diversion to oil back chamber 101.Wherein, refrigeration oil is by by filter screen (the first filtration members 3), filtering out in oil
The impurity of aluminium skimmings and bulky grain, the refrigeration oil after filtering flow to the passage 102 at the center of bent axle 6, arrived after being pressurized by high-pressure oil pump 4,5
Up to back pressure chamber 13, the refrigeration oil of back pressure chamber 13 can produce an axial thrust loads to the eddy spinner disk 7 of compressor 100, force whirlpool
Rotating disk 7 is brought into close contact with the quiet disk 9 that is vortexed, while eddy spinner disk 7 is in suspended state, reduces between Moving plate and support plate
Abrasion, the refrigeration oil of another part can lubricate eddy spinner disk respectively by the second oil circuit entrance 7b and the first oil circuit entrance 7a
Root and eddy spinner disk 7 and support plate of 7 tops with the quiet disk 9 that is vortexed, play lubrication anti-attrition and oil film seal, it is ensured that refrigerant is not
It can leak and then finally improve the operating efficiency of compressor 100.
The suction room in the outside of discharge chambe 10 that refrigerant passes through compressor 100 is inhaled into eddy spinner disk 7 and matched somebody with somebody with the quiet disk 9 that is vortexed
Close in the discharge chambe 10 formed, air-breathing, compression are completed under the rotation of bent axle 6, is vented and moves in circles.It is cold when discharge chambe 10
When the pressure of matchmaker and refrigeration oil reaches the limit value of pressure limiting valve block 12, pressure limiting valve block 12 is opened, and the mist of oil of HTHP will lead to
The oil gas high pressure chest 17 that the oil gas vent passage 11 of overcompression room 10 enters in exhaust end cover 22, the oil gas of HTHP is by oil
The separator inlet 14 of gas separating device 20 enters Oil-gas Separation room, and the small gas of density is upper by the blast pipe of screw compressor 100
Portion outlet discharge, into condenser, the refrigeration oil isolated enters accumulator 18 by the lower part outlet of blast pipe.In accumulator 18
Refrigeration oil by the first filter screen on exhaust end cover 22, filter out after the aluminium skimmings that may be come off from the oil return of outside oil return pipe 24
Tube inlet 23 is back to oil return pipe outlet 25, is again introduced into casing, is extracted by oil pump 4,5, completes a circulation.Meanwhile pass through
It can externally be radiated during 24 tunnel of oil return pipe crossed outside the high temperature refrigeration oil process of oil return pipe 24, certain cooling is played to refrigeration oil.
The 100 outer part oil return mechanism of screw compressor, employs external pipeline, is easy to the installation and adjustment of pipeline, in structure
Simply, it is easy to operation.
In addition, the utility model additionally provides another specific embodiment.
From Fig. 6,7, refrigeration oil is extracted into the inner flow passage of bent axle 6 in accumulator 18 through the second screen pack by oil pump 4,
The oil being extracted is reached in the back pressure chamber 13 that eddy spinner disk 7 is formed with bent axle 6, and the refrigeration oil for obtaining pressure can be to eddy spinner disk 7
The thrust of one axial direction so that Moving plate is suspended in the oil film of refrigeration oil formation, reduces the contact with bent axle 6 of eddy spinner disk 7 mill
Damage, the effective service life for improving eddy spinner disk 7.Freezing oil two-way flowing in back pressure chamber 13, is eddy spinner disk 7 all the way
On entrance, form oil film from the outlet on eddy spinner disk 7 in eddy spinner disk 7 and the quiet disk 9 of being vortexed, reach lubrication and be vortexed quiet disk 9
With eddy spinner disk 7, its abrasion is reduced, and enter compression chamber；It is to enter to be vortexed by the entrance on eddy spinner disk 7 to move all the way in addition
Gap between disk 7 and support plate is lubricated.With the rotation of bent axle 6, compression chamber once completes air-breathing, compression, exhaust.By
The refrigeration oil and refrigerant that back pressure chamber 13 enters are compressed together, pressure and temperature rise, when its pressure reaches pressure limiting valve block 12
During pressure, oil gas will be entered in Oil-gas Separation room by runner, and the cold media gas after separation is discharged by blast pipe, after separation
Refrigeration oil enter in the accumulator 18 of exhaust end, and the spill port by being vortexed on quiet disk 9 returns to suction by internal oil return pipe 24
The accumulator 18 at gas end, complete a circulation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, limited unless otherwise clear and definite.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (10)
- A kind of 1. compressor, it is characterised in that including：Shell, the shell one end is with oil back chamber and the other end is with accumulator；Compression assembly, the compression assembly are located on the inside of the shell, have back pressure chamber and discharge chambe in the compression assembly；Gs-oil separator, the gs-oil separator has refrigerant exit and the gs-oil separator connects the discharge chambe and oil storage Room；Support plate, the support plate are located on the inside of the compression assembly；Bent axle, the bent axle are rotatably arranged in the shell and are connected with the compression assembly, have in the bent axle and connect Lead to the passage of the oil back chamber and the back pressure chamber；Oil return pipe, the oil return pipe connect with the accumulator and the oil back chamber respectively.
- 2. compressor according to claim 1, it is characterised in that have on the outer side face and connect the oil back chamber Oil return opening and the connection accumulator oil-out.
- 3. compressor according to claim 1 or 2, it is characterised in that the oil return pipe is located at the outer side.
- 4. compressor according to claim 1, it is characterised in that the exit of the discharge chambe is provided with pressure limiting valve block, institute Pressure limiting valve block is stated to be used to opening and separating the discharge chambe and the gs-oil separator.
- 5. compressor according to claim 1, it is characterised in that the compression assembly includes：Be vortexed quiet disk；Eddy spinner disk, discharge chambe, and shape inside the eddy spinner disk are limited between the eddy spinner disk and the quiet disk that is vortexed Into the back pressure chamber,Wherein, the bent axle is connected with the eddy spinner disk, and the support plate is fixed with the quiet disk relative position that is vortexed.
- 6. compressor according to claim 5, it is characterised in that have on the eddy spinner disk from the back pressure chamber and connect It is communicated to the first oil circuit entrance of friction pair formed between the eddy spinner disk and the support plate and from the back pressure chamber Second oil circuit entrance of the friction pair formed between quiet disk and the quiet disk that is vortexed that is vortexed.
- 7. compressor according to claim 5, it is characterised in that have on the eddy spinner disk connect the back pressure chamber and 3rd oil circuit entrance of the discharge chambe.
- 8. compressor according to claim 5, it is characterised in that the side face of eddy spinner disk disk quiet with the vortex, Support plate cooperatively forms the cavity of connection back pressure chamber.
- 9. compressor according to claim 1, it is characterised in that the porch of the passage is provided with the first filtration members, institute State and the second filtration members are provided with the oil-out of accumulator.
- 10. compressor according to claim 1, it is characterised in that the axis horizontal of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698836.2U CN206988117U (en) | 2017-06-15 | 2017-06-15 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698836.2U CN206988117U (en) | 2017-06-15 | 2017-06-15 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988117U true CN206988117U (en) | 2018-02-09 |
Family
ID=61395578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720698836.2U Active CN206988117U (en) | 2017-06-15 | 2017-06-15 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228339A (en) * | 2020-10-27 | 2021-01-15 | 南京迪升动力科技有限公司 | Vortex pressure pump for medical breathing machine |
-
2017
- 2017-06-15 CN CN201720698836.2U patent/CN206988117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228339A (en) * | 2020-10-27 | 2021-01-15 | 南京迪升动力科技有限公司 | Vortex pressure pump for medical breathing machine |
| CN112228339B (en) * | 2020-10-27 | 2024-02-23 | 南京迪升动力科技有限公司 | Vortex pressure pump for medical breathing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912493B (en) | Compressor and refrigeration system with same | |
| CN106091188A (en) | Refrigeration unit | |
| CN208871909U (en) | The air supply system and refrigeration system of compressor gas bearing | |
| CN108474378A (en) | Compressor | |
| CN206280252U (en) | The adjustable two-stage energy-saving air compressor of pressure ratio | |
| CN106762666A (en) | Compressor and the vehicle with it | |
| CN105952649B (en) | Compressor | |
| CN206988117U (en) | Compressor | |
| CN107726656A (en) | The refrigerant heat pump system of single twin-stage conversion can be carried out | |
| CN207647779U (en) | Compressor and air-conditioning system with it | |
| CN102678572B (en) | Air conditioner and air conditioner low back pressure type compressor for pre-cooling motor | |
| CN100348867C (en) | Method and structure for improving efficiency and reliability of vertical vortex compressor | |
| CN106196793A (en) | A kind of removable ice machine | |
| CN206429423U (en) | A kind of screw air compressor heat abstractor | |
| CN206429418U (en) | Compressor and the vehicle with it | |
| CN105090031B (en) | Rotary compressor and there is its refrigerating circulatory device | |
| CN204942021U (en) | Centrifugal compressor and there is its room air conditioner | |
| CN209894000U (en) | Refrigerator waste heat utilization equipment | |
| CN104696227B (en) | Rotary compressor | |
| CN207881293U (en) | Liquid storage device | |
| CN203453066U (en) | Horizontal-type compressor | |
| CN103047147B (en) | Oil circuit structure of oil-injection scroll compressor | |
| CN106969519B (en) | Refrigerating plant | |
| CN2305627Y (en) | Device for separating oil from refrigerator | |
| CN207111422U (en) | Rotary compressor and there is its air-conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |