CN108374788A - A kind of change displacement scroll compressor - Google Patents
A kind of change displacement scroll compressor Download PDFInfo
- Publication number
- CN108374788A CN108374788A CN201810414884.3A CN201810414884A CN108374788A CN 108374788 A CN108374788 A CN 108374788A CN 201810414884 A CN201810414884 A CN 201810414884A CN 108374788 A CN108374788 A CN 108374788A
- Authority
- CN
- China
- Prior art keywords
- compression mechanism
- block
- accommodating cavity
- supporting rack
- movable orbiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 44
- 238000007906 compression Methods 0.000 claims abstract description 44
- 230000000740 bleeding effect Effects 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims 2
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 9
- 206010008469 Chest discomfort Diseases 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000010726 refrigerant oil Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
- F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
-
- 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
- F04C2240/811—Actuator for control, e.g. pneumatic, hydraulic, electric
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of change displacement scroll compressors, including shell, upper end cover, bottom end cover, control box, the first compression mechanism, the second compression mechanism；First compression mechanism includes the first fixed scroll, the first movable orbiting scroll, the first supporting rack, the first gasket, the first venthole is offered on first supporting rack, first venthole two side offers accommodating cavity respectively, two accommodating cavity bottoms are respectively equipped with electromagnet, the first block is equipped in one accommodating cavity, first block end is equipped with magnet, and the second block is equipped in another accommodating cavity, and the second block end is equipped with magnet；Controller is equipped in control box, electromagnet is electrically connected with the controller.Gas can control to enter compression chamber by the opening and closing of baffle, first compression mechanism is different with the dynamic and static whirlpool disk size of the second compression mechanism, and the output of three kinds of different refrigerating capacitys can be achieved in the opening and closing of cooperation supporting rack overhead gage, can be widely applied in various working environments, and it is simple in structure, it is at low cost.
Description
Technical field
The present invention relates to screw compressor fields, and in particular to a kind of screw compressor of variable displacement.
Background technology
Screw compressor is widely used in automobile since it has many advantages, such as that energy-efficient, noise is relatively low, operates steadily
In industry.Screw compressor is mainly formed by the dynamic and static vortex of two digamma function equation scrollworks is mutually ratcheting.Air-breathing, compression,
During exhaust work, fixed scroll is fixed on the rack, and movable orbiting scroll is driven by bent axle and restricted by anti-rotation mechanism, surrounds quiet whirlpool
The Plane Rotation of very little radius is done at disk basic circle center, and gas sucks the periphery of fixed scroll, and with the rotation of eccentric shaft, gas is dynamic
Quiet disk engagement is closed gradually to be compressed in several crescent compression chambers formed, then by the axial hole of fixed scroll central module
Continuously send.
It is to change the refrigerating capacity of screw compressor to adapt to different operating demand in the prior art, usually selects digital-code type whirlpool
Revolve compressor or DC frequency-changing formula screw compressor.And digital-code type screw compressor be easy to cause the mistake of whirlpool disk in frequent opening and closing
Degree abrasion, causes the compressor service life to greatly shorten.DC frequency-changing formula screw compressor cost is higher, need to additionally configure frequency control
Device.
Invention content
Based on the problem and deficiency described in background technology, the present invention is intended to provide one kind is hardly damaged and lower-cost change
Flow screw compressor.
In order to achieve the above objectives, the present invention uses following technical scheme：
A kind of change displacement scroll compressor, the screw compressor include shell, upper end cover, bottom end cover, control box, turn
Axis, the first compression mechanism, the second compression mechanism, the upper end cover side wall offer first row gas port, and the bottom end cover side wall is opened
Equipped with second exhaust port；First compression mechanism includes the first fixed scroll, the first movable orbiting scroll, is opened at the top of first movable orbiting scroll
Equipped with first row gas port, first row gas port upper end is equipped with air bleeding valve；Second compression mechanism includes the second fixed scroll, the
Two movable orbiting scrolls, the second movable orbiting scroll top offer second exhaust port, and the second exhaust port upper end is equipped with air bleeding valve；It is described
Second fixed scroll scrollwork axial length is more than first fixed scroll, and the second movable orbiting scroll scrollwork axial length is more than described the
One movable orbiting scroll.
Preferably, first compression mechanism further includes the first supporting rack, the first gasket, is opened up on first supporting rack
There are the first venthole, first venthole two side to offer accommodating cavity respectively, two accommodating cavity bottom is respectively equipped with electricity
Magnet, an accommodating cavity is interior to be equipped with the first block, and first block end is equipped with magnet, second is equipped in another accommodating cavity
Block, second block end are equipped with magnet.
Preferably, second compression mechanism further includes the second supporting rack, the second gasket, is opened up on second supporting rack
There are the second venthole, second venthole two side to offer accommodating cavity respectively, two accommodating cavity bottom is respectively equipped with electricity
Magnet, an accommodating cavity is interior to be equipped with the first block, and first block end is equipped with magnet, second is equipped in another accommodating cavity
Block, second block end are equipped with magnet.
Preferably, controller, the electromagnetism in first compression mechanism and the second compression mechanism are equipped in the control box
Iron is electrically connected with the controller.
The beneficial effects of the invention are as follows：First compression mechanism is different with the dynamic and static whirlpool disk size of the second compression mechanism, cooperation
The output of three kinds of different refrigerating capacitys can be achieved in the opening and closing of supporting rack overhead gage, can be widely applied in various working environments, and ties
Structure is simple, at low cost.
Description of the drawings
Fig. 1 is scroll compressor structure schematic diagram of the present invention；
Fig. 2 is the first compression mechanism schematic diagram of the invention；
Fig. 3 is the second compression mechanism schematic diagram of the invention；
Fig. 4 is the first supporting rack partial schematic diagram of the invention；
Fig. 5 is the first supporting rack partial schematic diagram of the invention；
Fig. 6 is the second supporting rack partial schematic diagram of the invention；
Fig. 7 is the second supporting rack partial schematic diagram of the invention.
Reference sign：Shell 1, upper end cover 2, bottom end cover 3, control box 4, shaft 5, air inlet 6, controller 7, low pressure
Chamber 8, first row gas port 9, oil eliminator 10, second exhaust port 11, the first fixed scroll 12, the first gasket 13, the first venthole 14,
First supporting rack 15, the first axle sleeve 16, the first bent axle 17, the first cross 18, the first movable orbiting scroll 19, first row stomata 20,
One high pressure chest 21, the second fixed scroll 22, the second venthole 23, the second axle sleeve 24, the second bent axle 25, the second cross 26, second
Supporting rack 27, the second gasket 28, the second movable orbiting scroll 29, second row stomata 31, the second high pressure chest 32, electromagnet 33, magnet 34,
One block 35, accommodating cavity 36, the second block 37, air bleeding valve 38.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, but present embodiment and unlimited
Due to content below, arbitrarily it can change and implement without departing from the spirit of the present invention.
As shown in Figs. 1-3, screw compressor of the present invention include shell 1, upper end cover 2, bottom end cover 3, control box 4, shaft 5,
First compression mechanism, the second compression mechanism, 1 side wall of the shell offer air inlet 6, the control box 4 and 1 side of the shell
Wall connects, and controller 7 is equipped in control box 4.1 upper end of the shell is bolted to connection with the upper end cover 2, described
1 lower end of shell is bolted to connection with the bottom end cover 3.2 side wall of the upper end cover offers first row gas port 9, described
Oil eliminator 10 is equipped at first row gas port 9,3 side wall of above-mentioned bottom end cover offers second exhaust port 11, the second exhaust port
Oil eliminator 10 is equipped at 11.
As shown in Fig. 2, first compression mechanism include the first fixed scroll 12, the first movable orbiting scroll 19, the first supporting rack 15,
First gasket 13,12 upper end of the first fixed scroll are fixedly connected by axis pin with the upper end cover 2.First supporting rack
15 lower ends are fixedly connected by axis pin with 1 inner wall of the shell.It is equipped between first fixed scroll, 12 and first supporting rack 15
First gasket 13, first fixed scroll 12 is interior to be equipped with the first movable orbiting scroll 19, the first fixed scroll 12 and the setting of the first movable orbiting scroll 19
In 13 side of the first gasket, the first cross 18 and the first supporting rack 15 are set to 13 other side of the first gasket.Gasket is by dynamic whirlpool
Disk is separated with supporting rack, and when screw compressor works, movable orbiting scroll is moved in gasket surface, to efficiently avoid movable orbiting scroll
With the contact wear of supporting rack.
The volume top end face of first movable orbiting scroll 19 open up it is fluted, the groove internal clearance be equipped with sealing ring, sealing ring
12 bottom surface of the first fixed scroll is abutted, the wrap tip face of first fixed scroll 12 opens up fluted, the groove
Internal clearance is equipped with sealing ring, and sealing ring abuts 19 bottom surface of the first movable orbiting scroll.
As schemed shown in 4-5, the first venthole 14,14 liang of first venthole are offered on first supporting rack 15
Side wall offers accommodating cavity 36 respectively, and two accommodating cavities, 36 bottom is respectively equipped with electromagnet 33, is set in an accommodating cavity 36
There is the first block 35,35 end of the first block is equipped with magnet 34, is equipped with the second block 37 in another accommodating cavity 36, and described the
Two blocks, 37 end is equipped with magnet 34；Controller 7 is equipped in the control box 4, the electromagnet 33 is electrically connected with controller 7.
The electromagnet 33 generates magnetic force after being powered, controller 7 changes the current direction of electromagnet 33, to control electromagnetism
Iron 33 generates attraction or repulsive force to magnet 34.When the electromagnet 33 attracts magnet 34, first block 35 and the
Two blocks 37 slide into through magneticaction in accommodating cavity 36, and the first venthole 14 is in the open state at this time, and system refrigerant can be via
It is compressed in the compression chamber that first venthole 14 flows into first fixed scroll 12 and first movable orbiting scroll 19 is formed.
When the electromagnet 33 repels magnet 34, first block, 35 and second block 37 skids off appearance through magneticaction
Chamber 36 is set, 35 end face of the first block is mutually abutted with 37 end face of the second block, and to the first venthole 14 of closing, system is cold at this time
Matchmaker is blocked on outside the first venthole 14, since system refrigerant cannot be introduced into compression chamber so that pressure of the whirlpool disk without gas
Contracting.
As shown in figure 3, second compression mechanism include the second fixed scroll 22, the second movable orbiting scroll 29, the second supporting rack 27,
Second gasket 28,22 upper end of the second fixed scroll are fixedly connected by axis pin with the bottom end cover 3.Second supporting rack
27 lower ends are fixedly connected by axis pin with 1 inner wall of the shell.It is equipped between second fixed scroll, 22 and second supporting rack 27
Second gasket 28, second fixed scroll 22 is interior to be equipped with the second movable orbiting scroll 29, the second fixed scroll 22 and the setting of the second movable orbiting scroll 29
In 28 side of the second gasket, the second cross 26 and the second supporting rack 27 are set to 28 other side of the second gasket, and gasket is by dynamic whirlpool
Disk is separated with supporting rack.
The volume top end face of second movable orbiting scroll 29 open up it is fluted, the groove internal clearance be equipped with sealing ring, sealing ring
22 bottom surface of the second fixed scroll is abutted, the wrap tip face of second fixed scroll 22 opens up fluted, the groove
Internal clearance is equipped with sealing ring, and sealing ring abuts 29 bottom surface of the second movable orbiting scroll.
As schemed shown in 4-5, the second venthole 23,23 liang of second venthole are offered on second supporting rack 27
Side wall offers accommodating cavity 36 respectively, and two accommodating cavities, 36 bottom is respectively equipped with electromagnet 33, is set in an accommodating cavity 36
There is the first block 35,35 end of the first block is equipped with magnet 34, is equipped with the second block 37 in another accommodating cavity 36, and described the
Two blocks, 37 end is equipped with magnet 34, and the electromagnet 33 is electrically connected with controller 7.The block of second venthole, 23 both sides
Motion mode is identical as first venthole, 14 liang of side block blocks motion modes.
Second fixed scroll, 22 scrollwork axial length is more than first fixed scroll 12,29 scrollwork of the second movable orbiting scroll
Axial length is more than first movable orbiting scroll 19, so that the compression that the first fixed scroll 12 and the first movable orbiting scroll 19 cooperatively form
Cavity volume is less than the compression chamber volume that second fixed scroll, 22 and second movable orbiting scroll 29 cooperatively forms, thus the first compressor
Structure, the second compression mechanism can generate different refrigerating capacitys.Controller 7 controls the baffle of the first venthole 14 and the second venthole 23
When opening simultaneously, system refrigerant enters the first compression mechanism and the second compression mechanism, at this time the exportable maximum of screw compressor
Refrigerating capacity.The baffle that controller 7 controls the first venthole 14 is opened, and the baffle of the second venthole 23 is closed, system refrigerant only into
Enter the first compression mechanism, the minimum refrigerating capacity of screw compressor output at this time.The baffle that controller 7 controls the first venthole 14 closes
It closes, the baffle of the second venthole 23 is opened, and system refrigerant only enters the second compression mechanism, and screw compressor exports medium system at this time
Cold, thus screw compressor of the present invention, which can be realized, exports different refrigerating capacitys.
As shown in Figs. 1-3,5 upper end of the shaft is rotatablely connected by sliding bearing and first supporting rack 15, described
5 lower end of shaft is rotatablely connected by sliding bearing and second supporting rack 27.Shaft 5 is driven by hollow motor to be rotated, institute
The rotor for stating hollow motor is fixedly connected with the shaft 5, and stator is fixedly connected with 1 inner wall of the shell.
5 upper end of the shaft is equipped with the first axle sleeve 16 integrally formed with the first bent axle 17,17 end sleeve of the first bent axle,
First axle sleeve 16 is fixed on 17 crankshaft end of the first bent axle by spring arch clasp.First movable orbiting scroll, 19 bottom passes through rolling
Needle bearing is socketed with first axle sleeve 16 rotation, and first cross 18 is set to the first supporting rack 15 and the first movable orbiting scroll
Between 19.
5 lower end of the shaft is equipped with the second axle sleeve 24 integrally formed with the second bent axle 25,25 end sleeve of the second bent axle,
Second axle sleeve 24 is fixed on 25 crankshaft end of the second bent axle by spring arch clasp.Second movable orbiting scroll, 29 bottom passes through rolling
Needle bearing is socketed with second axle sleeve 24 rotation, and second cross 26 is set to the second supporting rack 27 and the second movable orbiting scroll
Between 29.
First fixed scroll, 12 top offers first row stomata 20, and air bleeding valve 8 passes through screw and the first fixed scroll 12
Top is fixedly connected, and the air bleeding valve 8 is arranged above first row stomata 20.Second fixed scroll, 22 top offers second
Gas vent 31, air bleeding valve 8 are fixedly connected by screw with 22 top of the second fixed scroll, and the air bleeding valve 8 is arranged in second exhaust
31 top of hole.
The upper end cover 2 is enclosed the first high pressure chest 21,1 inner wall of shell and the first support with first fixed scroll 2
Frame 15, the second supporting rack 27 are enclosed low pressure chamber 8.The mixed gas of system refrigerant and lubricating oil by the first venthole 14 into
Enter in the first compression mechanism, after the first movable orbiting scroll 12 and the compression of the first fixed scroll 19, high pressure gas enters the first high pressure chest 21
Interior, effect of the mist of oil through oil eliminator 10 in high pressure chest mixed gas becomes oil droplet and falls to 12 surface of the first fixed scroll.
The bottom end cover 3 and second fixed scroll 22 are enclosed the second high pressure chest 32, system refrigerant and lubricating oil
Mixed gas is entered by the second venthole 23 in the second compression mechanism, is compressed through the second movable orbiting scroll 22 and the second fixed scroll 29
Afterwards, high pressure gas enters in the second high pressure chest 32, effect of the mist of oil through oil eliminator 10 in high pressure chest mixed gas, becomes oil
Drop falls to 3 surface of bottom end cover.
The present invention is described in detail above, its object is to allow the personage for being familiar with this field technology that can understand this
The content of invention is simultaneously implemented, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes according to the present invention
The equivalent change or modification of work should all cover within the scope of the present invention.
Claims (4)
1. a kind of change displacement scroll compressor, it is characterised in that：The screw compressor include shell (1), upper end cover (2),
Bottom end cover (3), control box (4), shaft (5), the first compression mechanism, the second compression mechanism, upper end cover (2) side wall offer
First row gas port (9), bottom end cover (3) side wall offer second exhaust port (11)；First compression mechanism includes first
Fixed scroll (12), the first movable orbiting scroll (19), offer first row stomata (20) at the top of first movable orbiting scroll (19), and described first
Gas vent (20) upper end is equipped with air bleeding valve (38)；Second compression mechanism includes the second fixed scroll (22), the second movable orbiting scroll
(29), second row stomata (31) is offered at the top of second movable orbiting scroll (29), second row stomata (31) upper end is equipped with row
Air valve (38)；Second fixed scroll (22) the scrollwork axial length is more than first fixed scroll (12), second movable orbiting scroll
(29) scrollwork axial length is more than first movable orbiting scroll (19).
2. variable-flow screw compressor according to claim 1, it is characterised in that：First compression mechanism further includes first
Supporting rack (15), the first gasket (13) offer the first venthole (14), first ventilation on first supporting rack (15)
Hole (14) two side offers accommodating cavity (36) respectively, and two accommodating cavity (36) bottom is respectively equipped with electromagnet (33), described
The first block (35) is equipped in one accommodating cavity (36), the first block (35) end is equipped with magnet (34), another accommodating cavity
(36) the second block (37) is equipped in, the second block (37) end is equipped with magnet (34).
3. variable-flow screw compressor according to claim 2, it is characterised in that：Second compression mechanism further includes second
Supporting rack (27), the second gasket (28) offer the second venthole (23), second ventilation on second supporting rack (27)
Hole (23) two side offers accommodating cavity (36) respectively, and two accommodating cavity (36) bottom is respectively equipped with electromagnet (33), described
The first block (35) is equipped in one accommodating cavity (36), the first block (35) end is equipped with magnet (34), another accommodating cavity
(36) the second block (37) is equipped in, the second block (37) end is equipped with magnet (34).
4. variable-flow screw compressor according to claim 3, it is characterised in that：Controller is equipped in the control box (4)
(7), the electromagnet (33) in first compression mechanism and the second compression mechanism is electrically connected with the controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414884.3A CN108374788A (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414884.3A CN108374788A (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108374788A true CN108374788A (en) | 2018-08-07 |
Family
ID=63033139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810414884.3A Pending CN108374788A (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108374788A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141483A (en) * | 1997-11-06 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Electric gas compressor |
| CN102032179A (en) * | 2011-01-05 | 2011-04-27 | 天津商业大学 | Vertical totally-enclosed double-stage vortex type refrigeration compressor |
| CN104863856A (en) * | 2015-05-22 | 2015-08-26 | 合肥天鹅制冷科技有限公司 | Scroll compressor added with double scrolls |
| CN205744430U (en) * | 2016-06-21 | 2016-11-30 | 上海日立电器有限公司 | A kind of screw compressor |
| CN208348058U (en) * | 2018-05-03 | 2019-01-08 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
-
2018
- 2018-05-03 CN CN201810414884.3A patent/CN108374788A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141483A (en) * | 1997-11-06 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Electric gas compressor |
| CN102032179A (en) * | 2011-01-05 | 2011-04-27 | 天津商业大学 | Vertical totally-enclosed double-stage vortex type refrigeration compressor |
| CN104863856A (en) * | 2015-05-22 | 2015-08-26 | 合肥天鹅制冷科技有限公司 | Scroll compressor added with double scrolls |
| CN205744430U (en) * | 2016-06-21 | 2016-11-30 | 上海日立电器有限公司 | A kind of screw compressor |
| CN208348058U (en) * | 2018-05-03 | 2019-01-08 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
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