CN102644597B - Double-cylinder rotary compressor - Google Patents
Double-cylinder rotary compressor Download PDFInfo
- Publication number
- CN102644597B CN102644597B CN201110044857.XA CN201110044857A CN102644597B CN 102644597 B CN102644597 B CN 102644597B CN 201110044857 A CN201110044857 A CN 201110044857A CN 102644597 B CN102644597 B CN 102644597B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- gas channel
- cylinder chamber
- suction port
- piston
- 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
Abstract
The invention relates to a double-cylinder rotary compressor, which comprises a shell with internal pressure being pressure on a high-pressure side. A compression mechanism and a motor are arranged in the shell. The compression mechanism comprises a first air cylinder, a second air cylinder and a middle baffle which partitions the first air cylinder and the second air cylinder. A first piston and a first sliding sheet which is abutted with the periphery of the first piston are arranged in the first air cylinder. A second piston and a second sliding sheet which is abutted with the periphery of the second piston are arranged in the second air cylinder. A crankshaft is respectively connected with the first piston and the second piston. A main bearing and an auxiliary bearing are respectively arranged on the side surfaces of the first air cylinder and the second air cylinder. A first air cylinder chamber inlet is arranged on the first air cylinder. A second air cylinder chamber inlet is arranged on the second air cylinder. A suction hole is arranged in the bearing flange of the main bearing or the auxiliary bearing. A hole is arranged at one end of an external suction pipe and is arranged in the suction hole. The compression mechanism additionally comprises a suction interference preventing device which is used for lengthening the distance between the first air cylinder chamber inlet and the second air cylinder chamber inlet. The double-cylinder rotary compressor has the characteristics of high compression efficiency and great refrigeration capacity.
Description
Technical field
The present invention relates to a kind of rotary compressor, particularly a kind of two-cylinder type rotary compressor.
Background technique
The cylinder of existing two-cylinder type rotary compressor has respectively independently sucking pipe.But, in recent years, for improving manufacturing and reducing costs, omit a wherein sucking pipe, only use the method for a sucking pipe to be used.But, in the design of omitting a sucking pipe, the machine that refrigerating capacity is large, or under the fast condition of running speed, the problem of refrigerating capacity and inefficiency highlights.As shown in Figure 1, if perforate is very near in the first cylinder chamber entrance 34a and the distance between the second cylinder chamber entrance 34b of two cylinder chambers, between two cylinders, the interference of gas will be there is to suck.On two-cylinder type rotary compressor, because the relative position of each piston has the phase difference of 180 degree, the every rotation of each piston 1 time, between the first cylinder and the second cylinder, the pressure of inspiration(Pi) in cylinder chamber can produce difference.That is to say, according to the angle of swing of rolling piston, the first cylinder chamber supplements a part from the second cylinder chamber and sucks gas, and on the contrary, the second cylinder chamber supplements a part from the first cylinder chamber and sucks gas, and this phenomenon once just occurs once in the every rotation of rolling piston.So, because of the interference phenomenon of two cylinder chambers generation suction gases, the total gas flow that causes liquid-storage container to be supplied with to two cylinders reduces.Consequently, the refrigerating capacity of whole compressor and running efficiency reduce.These problems are at the large machine of refrigerating capacity, and the High Rotation Speed stage of the two-cylinder type rotary compressor of use variable-frequency motor is especially remarkable.
Summary of the invention
Object of the present invention aims to provide a kind of simple and reasonable, flexible operation, compression efficiency is high, refrigerating capacity is large, applied widely two-cylinder type rotary compressor, to overcome deficiency of the prior art.
By a kind of two-cylinder type rotary compressor of this object design, comprise that interior pressure is the housing of high side pressure, in housing, be provided with compressing mechanism and motor, compressing mechanism comprises the first cylinder, the second cylinder and the central diaphragm of dividing the first cylinder and the second cylinder, in the first cylinder, be provided with first piston and with the first slide plate of the periphery butt of first piston, in the second cylinder, be provided with the second piston and with the second slide plate of the periphery butt of the second piston, bent axle joins respectively at first piston and the second piston, main bearing and supplementary bearing are separately positioned on the first cylinder and the second cylinder side, on the first cylinder, be provided with the first cylinder chamber entrance, on the second cylinder, be provided with the second cylinder chamber entrance, its structure characteristic is to be provided with suction port in the bearing flange of main bearing or supplementary bearing, one end perforate of outside sucking pipe is in suction port, also comprise the anti-air-breathing deception equipment that lengthens distance between the first cylinder chamber entrance and the second cylinder chamber entrance.
Described anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm, on main bearing, be provided with the first gas channel communicating with suction port, the first gas channel communicates with the first cylinder chamber entrance, after the first cylinder and the first gas channel are passed in one end of connecting tube, perforate is in suction port, and the other end of connecting tube communicates with the second cylinder chamber entrance;
Or, anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm, on supplementary bearing, be provided with the first gas channel communicating with suction port, the first gas channel communicates with the second cylinder chamber entrance, after the second cylinder and the first gas channel are passed in one end of connecting tube, perforate is in suction port, and the other end of connecting tube communicates with the first cylinder chamber entrance.
The maximum secting area of the horizontal circulation area > connecting tube of described the first gas channel.
Described connecting tube the position of opening in suction port, with the position of opening of the first gas channel in suction port, lay respectively at different height.
Described connecting tube is cylindrical tube, elastic tubes or spring coil pipe.
Described anti-air-breathing deception equipment comprises the first gas channel and the second gas channel, and one end perforate of the first gas channel is in suction port, and one end perforate of the second gas channel is in suction port, and these two perforate intervals arrange; The other end of the first gas channel communicates with the first cylinder chamber entrance, and the other end of the second gas channel communicates with the second cylinder chamber entrance.
The present invention is directed to the two-cylinder type rotary compressor with an outside sucking pipe, the split point of the gas sucking from this outside sucking pipe is at the entrance of connecting tube, therefore can be regarded as two cylinder chambers: the first cylinder chamber and the second cylinder chamber, form respectively independently inner sucking pipe, thereby can lengthen the distance between the first cylinder chamber entrance and the second cylinder chamber entrance, the gas coming from suction port can flow into respectively the first cylinder and the second cylinder, and can not suck the phase mutual interference of gas, thereby the working efficiency of compressor and refrigerating capacity.
That the present invention has is simple and reasonable, flexible operation, compression efficiency is high, refrigerating capacity is large, applied widely feature.
Accompanying drawing explanation
Fig. 1 is the broken section structural representation of existing two-cylinder type rotary compressor.
Fig. 2 is the broken section structural representation of embodiments of the invention 1.
Fig. 3 is the broken section structural representation of the two-cylinder type rotary compressor in embodiment 1.
Fig. 4 is that X-X in Fig. 3 is to sectional structure schematic diagram.
Fig. 5 is embodiment 2 broken section structural representation.
In figure: 1 is two-cylinder type rotary compressor, 2 is housing, 3 is outlet pipe, 4 is condenser, 5 is expansion valve, 6 is vaporizer, 7 is liquid-storage container, 8 is outside sucking pipe, 11 is compressing mechanism, 12 is motor, 13a is the first cylinder, 13b is the second cylinder, 14 is central diaphragm, 15a is the first cylinder chamber, 15b is the second cylinder chamber, 16a is first piston, 16b is the second piston, 17a is the first slide plate, 21 is main bearing, 22 is supplementary bearing, 23 is upper baffler, 24 is bottom silencer, 25 is bent axle, 26 is suction port, 28 is bearing flange, 32a is the first gas channel, 32b is the second gas channel, 34a is the first cylinder chamber entrance, 34b is the second cylinder chamber entrance, 35 is cylindrical tube.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
Below according to the concrete structure of the drawing explanation embodiment of the present invention 1.
Referring to Fig. 2-Fig. 3, shown summary and the freeze cycle of two-cylinder type rotary compressor 1 internal structure.The interior pressure of closed shell 2 is high side pressure, and the pressurized gas of discharging from outlet pipe 3 become low-pressure gas after condenser 4, expansion valve 5 and vaporizer 6, and arrival is arranged on the liquid-storage container 7 on housing 2.Then, the gas sucking from the outside sucking pipe 8 communicating with liquid-storage container 7, through being arranged at the suction port 26 of main bearing 21 bearing flanges 28, sucking compressing mechanism 11 and compresses.
Two-cylinder type rotary compressor 1 has configured compressing mechanism 11 in the bottom of housing 2, on the top of housing 2, has configured motor 12, and the periphery of compressing mechanism 11 and motor 12 is all fixed on the inwall of housing 2.
Compressing mechanism 11 has two cylinders: the first cylinder 13a and the second cylinder 13b, these two cylinders are divided its top and bottom by central diaphragm 14, form respectively the first cylinder chamber 15a and the second cylinder chamber 15b.In this embodiment 1, the periphery of the bearing flange 28 of the main bearing 21 of formation compressing mechanism 11 is fixed on housing 2, the discharge capacity of the first cylinder 13a and the second cylinder 13b is identical.
The first cylinder chamber 15a and the second cylinder chamber 15b include respectively first piston 16a and the second piston 16b.Its tip portion respectively with two slide plates of the periphery sliding contact of first piston 16a and the second piston 16b: the first slide plate 17a and the second slide plate, be disposed in the vane motion groove of the first cylinder 13a and the second cylinder 13b.
The bottom of the top of the first cylinder 13a and the second cylinder 13b has configured respectively main bearing 21 and supplementary bearing 22.Main bearing 21 and supplementary bearing 22 have respectively upper baffler 23 and bottom silencer 24, and, in the internal configurations of upper baffler 23 and bottom silencer 24 venting gas appliance (without diagram).Bent axle 25 contacts with the inwall relative sliding of main bearing 21 and supplementary bearing 22, and two eccentric parts of bent axle 25 carry out eccentric drive to first piston 16a and the second piston 16b respectively.
The other end that is welded in the outside sucking pipe 8 of housing 2 sides is connected on liquid-storage container 7.One end of outside sucking pipe 8 communicates with suction port 26.
On the first cylinder 13a, be provided with the first cylinder chamber entrance 34a, on the second cylinder 13b, be provided with the second cylinder chamber entrance 34b.Between the first cylinder chamber entrance 34a and the second cylinder chamber entrance 34b, be provided with the anti-air-breathing deception equipment that lengthens distance.
Anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm 14, on main bearing 21, be provided with the first gas channel 32a communicating with suction port 26, the first gas channel 32a communicates with the first cylinder chamber entrance 34a, after the first cylinder 13a and the first gas channel 32a are passed in one end of connecting tube, perforate is in suction port 26, and the other end of connecting tube communicates with the second cylinder chamber entrance 34b.
The maximum secting area of the horizontal circulation area > connecting tube of the first gas channel 32a.Connecting tube the position of opening in suction port 26, with the position of opening of the first gas channel 32a in suction port 26, lay respectively at different height.Connecting tube is cylindrical tube 35, elastic tubes or spring coil pipe.
Perforate is communicated with the first cylinder chamber entrance 34a in the first gas channel 32a of suction port 26.Be installed on the cylindrical tube 35 of central diaphragm 14 from the internal openings of the first gas channel 32a to suction port 26.The lower end of the cylindrical tube 35 of boring is communicated with the second cylinder chamber entrance 34b.
So, the effect of first piston 16a and the second piston 16b by the internal rotating at the first cylinder chamber 15a and the second cylinder chamber 15b, from outside sucking pipe 8, be drawn into the suction gas of suction port 26 in the entrance shunting of cylindrical tube 35, flow to respectively the first cylinder chamber 15a and the second cylinder chamber 15b.
Enter into the suction gas of suction port 26, a part, by connecting tube and the second cylinder chamber entrance 34b, enters the second cylinder 13b; Another part enters in the first gas channel 32a from the gap forming between the outer wall of connecting tube and the first gas channel 32a, then enters the first cylinder chamber 15a by the first cylinder chamber entrance 34a.Therefore, solved the interference problem that sucks gas at two cylinder places.
In two cylinders, by the pressurized gas of each piston compression, from discharge valve apparatus, via top silencing apparatus 23 and bottom silencing apparatus 24, be expelled to compressor.
Like this, the distance between the first cylinder chamber entrance 34a and the second cylinder chamber entrance 34b is elongated.Cylindrical tube 35 can be regarded as the air-breathing loop of separating from the loop of the first gas channel 32a to the first cylinder chamber 15a.The gas sucking from an outside sucking pipe 8, through two loops independently, flows to respectively in each cylinder chamber.
As mentioned above, by a cylindrical tube 35 being installed in central diaphragm 14 places, distance between the first cylinder chamber entrance 34a and the second cylinder chamber entrance 34b is elongated, and suck gas and flow in each cylinder chamber via loop independently, thereby can solve two cylinders: the interference problem of the suction gas that the first cylinder 13a and the second cylinder 13b produce.Result can improve the gettering efficiency of each cylinder chamber, reduces the loss of refrigerating capacity and running efficiency, can prevent trouble before it happens.
As mentioned above, by being installed on the cylindrical tube 35 at central diaphragm 14 places, make two separated this modes in loop that suck gas toward cylinder, be not limited to above-mentioned disclosed formation, can certainly in the scope of purport of the present invention, do various distortion.
Referring to Fig. 4, it is the X-X sectional view in Fig. 3.Thinner steel pipe or the elastic force steel pipe of thickness of slab that cylindrical tube 35 is generally 0.3mm left and right by wall thickness made, or consists of the adherence spring coil of 0.5mm left and right wire diameter etc., is installed on central diaphragm 14 places.Each coil adherence that so-called adherence spring coil refers to spring is together time, and this spring has just formed a pipe, so be spring coil pipe.
For making the compression efficiency performance of two cylinders to maximum, can optimize the diameter of the first gas channel 32a and the internal diameter of cylindrical tube 35 according to the discharge capacity of two cylinders.
More than to take in the bearing flange of main bearing 21 to be provided with the explanation that suction port 26 carries out as example, while being provided with suction port 26 in the bearing flange at supplementary bearing 22, one end perforate of outside sucking pipe 8, in suction port 26, is provided with the anti-air-breathing deception equipment that lengthens distance between the first cylinder chamber entrance 34a and the second cylinder chamber entrance 34b.Anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm 14, on supplementary bearing 22, be provided with the first gas channel 32a communicating with suction port 26, the first gas channel 32a communicates with the second cylinder chamber entrance 34b, after the second cylinder 13b and the first gas channel 32a are passed in one end of connecting tube, perforate is in suction port 26, and the other end of connecting tube communicates with the first cylinder chamber entrance 34a.It is same as above that all the other do not state part, and this rear technological scheme also can obtain with the identical technique effect of previous technological scheme.
Certainly, freeze cycle or the air conditioner circulating system that above-mentioned two-cylinder type rotary compressor forms prolonged and adopted to protection scope of the present invention.
In sum, technology disclosed by the invention can import in industry simply, and realizes batch production.
Embodiment 2
Referring to Fig. 5, anti-air-breathing deception equipment comprises the first gas channel 32a and the second gas channel 32b, and one end perforate of the first gas channel 32a is in suction port 26, and one end perforate of the second gas channel 32b is in suction port 26, and these two perforate intervals arrange; The other end of the first gas channel 32a communicates with the first cylinder chamber entrance 34a, and the other end of the second gas channel 32b communicates with the second cylinder chamber entrance 34b.
As by suck gas branch to two cylinders mode, independently the first gas channel 32a and the second gas channel 32b are arranged at suction port 26 places, will suck gas and supply with respectively the first cylinder chamber 15a and the second cylinder chamber 15b.In this way, can obtain the technique effect identical with embodiment 1.
All the other are not stated part and see the first embodiment, no longer repeat.
Claims (5)
1. a two-cylinder type rotary compressor, comprise that interior pressure is the housing (2) of high side pressure, in housing (2), be provided with compressing mechanism (11) and motor (12), compressing mechanism (11) comprises the first cylinder (13a), the second cylinder (13b) and the central diaphragm (14) of dividing the first cylinder (13a) and the second cylinder (13b), in the first cylinder (13a), be provided with first piston (16a) and with first slide plate (17a) of the periphery butt of first piston (16a), in the second cylinder (13b), be provided with the second piston (16b) and with the second slide plate of the periphery butt of the second piston (16b), bent axle (25) joins with first piston (16a) and the second piston (16b) respectively, main bearing (21) and supplementary bearing (22) are separately positioned on the first cylinder (13a) and the second cylinder (13b) side, on the first cylinder (13a), be provided with the first cylinder chamber entrance (34a), on the second cylinder (13b), be provided with the second cylinder chamber entrance (34b), it is characterized in that being provided with suction port (26) in the bearing flange of main bearing (21) or supplementary bearing (22), one end perforate of outside sucking pipe (8) is in suction port (26), also comprise the anti-air-breathing deception equipment that lengthens distance between the first cylinder chamber entrance (34a) and the second cylinder chamber entrance (34b),
Described anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm (14), on main bearing (21), be provided with the first gas channel (32a) communicating with suction port (26), the first gas channel (32a) communicates with the first cylinder chamber entrance (34a), after the first cylinder (13a) and the first gas channel (32a) are passed in one end of connecting tube, perforate is in suction port (26), and the other end of connecting tube communicates with the second cylinder chamber entrance (34b);
Or, anti-air-breathing deception equipment comprises the connecting tube being arranged on central diaphragm (14), on supplementary bearing (22), be provided with the first gas channel (32a) communicating with suction port (26), the first gas channel (32a) communicates with the second cylinder chamber entrance (34b), after the second cylinder (13b) and the first gas channel (32a) are passed in one end of connecting tube, perforate is in suction port (26), and the other end of connecting tube communicates with the first cylinder chamber entrance (34a).
2. two-cylinder type rotary compressor according to claim 1, is characterized in that the maximum secting area of the horizontal circulation area > connecting tube of described the first gas channel (32a).
3. two-cylinder type rotary compressor according to claim 1, it is characterized in that the position of opening of described connecting tube in suction port (26), with the position of opening of the first gas channel (32a) in suction port (26), lay respectively at different height.
4. according to the two-cylinder type rotary compressor described in claim 2 or 3, it is characterized in that described connecting tube is cylindrical tube (35), elastic tubes or spring coil pipe.
5. two-cylinder type rotary compressor according to claim 1, it is characterized in that described anti-air-breathing deception equipment comprises the first gas channel (32a) and the second gas channel (32b), one end perforate of the first gas channel (32a) is in suction port (26), one end perforate of the second gas channel (32b) is in suction port (26), and these two perforate intervals arrange; The other end of the first gas channel (32a) communicates with the first cylinder chamber entrance (34a), and the other end of the second gas channel (32b) communicates with the second cylinder chamber entrance (34b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110044857.XA CN102644597B (en) | 2011-02-16 | 2011-02-16 | Double-cylinder rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110044857.XA CN102644597B (en) | 2011-02-16 | 2011-02-16 | Double-cylinder rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102644597A CN102644597A (en) | 2012-08-22 |
| CN102644597B true CN102644597B (en) | 2014-09-24 |
Family
ID=46657629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110044857.XA Active CN102644597B (en) | 2011-02-16 | 2011-02-16 | Double-cylinder rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644597B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306975A (en) * | 2013-06-19 | 2013-09-18 | 西安东方康普斯制冷工程有限公司 | Minitype refrigeration compressor |
| EP3597923A4 (en) * | 2017-03-17 | 2021-01-20 | Daikin Industries, Ltd. | Rotary compressor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221424B (en) * | 2015-11-02 | 2017-12-12 | 安徽美芝精密制造有限公司 | Rotary compressor and there is its heat pump |
| JPWO2020217385A1 (en) * | 2019-04-25 | 2020-10-29 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5542831A (en) * | 1995-05-04 | 1996-08-06 | Carrier Corporation | Twin cylinder rotary compressor |
| CN1620554A (en) * | 2001-12-20 | 2005-05-25 | Lg电子株式会社 | Suction mechanism of rotary compressor |
| JP2009235984A (en) * | 2008-03-27 | 2009-10-15 | Toshiba Carrier Corp | Two cylinder rotary type compressor and refrigeration cycle device |
| JP2010150949A (en) * | 2008-12-24 | 2010-07-08 | Daikin Ind Ltd | Rotary compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062930A (en) * | 2007-09-07 | 2009-03-26 | Toshiba Carrier Corp | Two-cylinder rotary compressor and refrigerating cycle device |
-
2011
- 2011-02-16 CN CN201110044857.XA patent/CN102644597B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5542831A (en) * | 1995-05-04 | 1996-08-06 | Carrier Corporation | Twin cylinder rotary compressor |
| CN1620554A (en) * | 2001-12-20 | 2005-05-25 | Lg电子株式会社 | Suction mechanism of rotary compressor |
| JP2009235984A (en) * | 2008-03-27 | 2009-10-15 | Toshiba Carrier Corp | Two cylinder rotary type compressor and refrigeration cycle device |
| JP2010150949A (en) * | 2008-12-24 | 2010-07-08 | Daikin Ind Ltd | Rotary compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306975A (en) * | 2013-06-19 | 2013-09-18 | 西安东方康普斯制冷工程有限公司 | Minitype refrigeration compressor |
| EP3597923A4 (en) * | 2017-03-17 | 2021-01-20 | Daikin Industries, Ltd. | Rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102644597A (en) | 2012-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102644597B (en) | Double-cylinder rotary compressor | |
| CN102900669B (en) | Two stage rotary compressor | |
| CN203272136U (en) | Single-cylinder multi-stage compressor | |
| CN104781553B (en) | For the gas blow-off system and refrigeration compressor of refrigeration compressor | |
| US20220082309A1 (en) | Compressor and refrigeration device | |
| CN102251964B (en) | Rotary compressor | |
| CN102562594B (en) | Capacity-varying rotary type compressor | |
| CN203335407U (en) | Single-cylinder two-stage compression pump body and compressor | |
| CN203248363U (en) | Double-die compression pump body and double-cylinder compressor using same | |
| KR20120007337A (en) | Compressor | |
| CN202937450U (en) | Intermediate partition plate of double-cylinder compressor | |
| CN206221281U (en) | Horizontal compressor and the refrigeration system with it | |
| CN103807175A (en) | Dual-rotor two-stage enthalpy increasing compressor, air conditioner and heat pump water heater | |
| CN202900660U (en) | Dual-rotor two-stage enthalpy increasing compressor, air conditioner and heat pump water heater | |
| CN105339666B (en) | Compound compressor and freezing cycle device | |
| CN105909498B (en) | Two level stroke type rotary compressor | |
| CN101158354A (en) | Multi-cylinder compressors | |
| CN201193614Y (en) | Air-intake mechanism of rotary compressor cylinder | |
| CN114151347B (en) | Cylinder, pump body structure, compressor and air conditioner | |
| CN203098283U (en) | Multistage variable-capacity assembly and multistage variable-capacity duplex cylinder compressor | |
| CN112412786B (en) | High-efficient compressor exhaust structure | |
| CN102644594A (en) | Double-cylinder type rotary compressor and control method for same | |
| CN102086869B (en) | Rotary compressor | |
| CN201953658U (en) | Gaseous refrigerant spraying type rotor compressor | |
| CN102644593A (en) | Double-cylinder rotary compressor and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |