CN104895788A - Vertical type rotary vane compressor and air conditioning system comprising same - Google Patents
Vertical type rotary vane compressor and air conditioning system comprising same Download PDFInfo
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- CN104895788A CN104895788A CN201510332955.1A CN201510332955A CN104895788A CN 104895788 A CN104895788 A CN 104895788A CN 201510332955 A CN201510332955 A CN 201510332955A CN 104895788 A CN104895788 A CN 104895788A
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Abstract
The invention discloses a vertical type rotary vane compressor and an air conditioning system comprising the same. The vertical type rotary vane compressor comprises a casing and a compression assembly, wherein an air suction port is formed in the side wall of the casing, and an exhaust port is formed in the top of the casing; the compression assembly is arranged in the casing and comprises an air cylinder, an upper bearing, a lower bearing, a crankshaft, a rotary vane and a plurality of slip sheets; an air cylinder cavity is formed in the air cylinder, and air cylinder exhaust holes communicated with an inner cavity of the casing are formed in the side wall of the air cylinder cavity; an air suction cavity is defined in the upper bearing and used for communicating the air suction port and the air cylinder cavity; the crankshaft sequentially penetrates through the upper bearing, the air cylinder and the lower bearing from top to bottom and can rotate around an axis; the rotary vane is fixedly arranged on the crankshaft in a sleeving manner and accommodated in the air cylinder cavity, and a plurality of slip sheet grooves in radial distribution are formed in the rotary vane; the plurality of slip sheets can be glidingly arranged in the slip sheet grooves respectively; the air cylinder cavity is divided into a plurality of separated chambers through the rotary vane and the plurality of slip sheets. According to the embodiment of the invention, the vertical type rotary vane compressor produces low noise and is high in energy efficiency.
Description
Technical field
The present invention relates to air-conditioning technical field, especially relate to a kind of vertical rotary vane type compressor and the air-conditioning system with this vertical rotary vane type compressor.
Background technique
As everyone knows, rotary compression engine efficiency is higher, but vibrating noise is poor, the high request of present user can not be met very well, each large compressor and air-conditioning factory are all devoted to the effort improving low-noise vibrating, but because of in rotary compressor gas compression processes, all there is unbalance moment in the tangential of the pump housing and radial direction, be difficult to overcome, the actual effect improved is poor.
In correlation technique, the compressor of air-conditioning system can adopt rotary vane type compressor to reduce vibration, but the rotary vane type compressor that existing air-conditioning system uses is horizontal type structure, and carries out transmission by motor by belt pulley and clutch, refrigerating capacity and efficiency on the low side.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention needs to propose a kind of vertical rotary vane type compressor, and this vertical rotary vane type compressor noise is low, and efficiency is high.
The present invention also needs to propose a kind of air-conditioning system with this vertical rotary vane type compressor.
The vertical rotary vane type compressor of embodiment, comprising: casing according to a first aspect of the present invention, and the sidewall of described casing is provided with intakeport, and the top of described casing is provided with relief opening; Compression member, described compression member to be located in described casing and to comprise: cylinder, has cylinder chamber in described cylinder, and the sidewall of described cylinder chamber is provided with the cylinder vent with the inner space of described casing; Upper bearing (metal), described upper bearing (metal) is located at described cylinder upper end, limits air aspiration cavity in described upper bearing (metal), and described air aspiration cavity is for being communicated with described intakeport and described cylinder chamber; Lower bearing, described lower bearing is located at described cylinder lower end; Bent axle, described from top to bottom successively through described upper bearing (metal), described cylinder and described lower bearing, described bent axle is rotatable around axis; Vane, described vane fixed cover to be located on described bent axle and to be contained in described cylinder chamber, and described vane is provided with the multiple vane slots radially distributed; Multiple slide plate, described multiple slide plate is located in described multiple vane slot respectively slidably, and described cylinder chamber is divided into multiple isolated chamber by described vane and described multiple slide plate.
According to the vertical rotary vane type compressor of the embodiment of the present invention, vane rotates under the drive of bent axle, because vane is provided with the multiple vane slots radially distributed, thus multiple chamber can be formed in the circumferential direction of vane, can cancel out each other or weaken by the chamber of the multiple phase difference of continuous print the unbalance moment that the inherent pressurized gas of cylinder produces thus, noise is low, and efficiency is high.And this vertical rotary vane type compressor from return-air the sidewall of casing and from the top vent of casing, thus can meet the mounting structure of the suction and discharge of existing vertical compressor, thus make the applied range of this vertical rotary vane type compressor.
In addition, vertical rotary vane type compressor according to the present invention also can have following additional technical feature:
According to one embodiment of present invention, described bent axle is provided with the push stopping part of annular, described push stopping part is positioned at the lower end of described vane and is supported on described lower bearing, described vertical rotary vane type compressor also comprises: dividing plate, described dividing plate is located between described push stopping part and described lower bearing, and wherein said dividing plate is provided with the bulkhead through-hole for dodging described push stopping part.
According to one embodiment of present invention, the diameter of described bulkhead through-hole is greater than the diameter of described push stopping part and is less than the diameter of the outer most edge shape of described vane, and the height of described dividing plate is equal with the height of described push stopping part.
According to one embodiment of present invention, described cylinder chamber is projected as oval hole shape in horizontal plane, and described cylinder vent comprises two groups and described two groups of exhaust ports lay respectively at the major axis both sides of the cylinder chamber of described oval hole shape.
According to one embodiment of present invention, described two groups of cylinder vents to be centrosymmetric distribution relative to the cylinder chamber of described oval hole shape.
According to one embodiment of present invention, often organize described cylinder vent and comprise isolated two cylinder vents up and down.
According to one embodiment of present invention, described upper bearing (metal) comprises: the flange part that barrel-shaped hub portion and the lower end periphery face around described hub portion are arranged, the outer rim of described flange part is provided with the shirt rim that upwards extends to form the groove of open upper end on described upper bearing (metal), described vertical rotary vane type compressor also comprises cover plate, described cover plate lid is located at the opening of described groove to limit described air aspiration cavity, and described flange part is provided with through hole to be communicated with described cylinder chamber.
According to one embodiment of present invention, described shirt rim is provided with shirt rim through hole for being communicated with described intakeport and described air aspiration cavity.
According to one embodiment of present invention, the periphery wall of described upper bearing (metal) is provided with trimming structure with the communicating passage with the inner chamber limited between the inwall of described casing for being communicated with described cylinder vent and described casing.
The air-conditioning system of embodiment according to a second aspect of the present invention, comprises the vertical rotary vane type compressor according to a first aspect of the present invention described in embodiment.
Because the vertical rotary vane type compressor according to the embodiment of the present invention has above-mentioned beneficial effect, therefore by arranging this vertical rotary vane type compressor thus can making the refrigerating/heating better effects if of air-conditioning system, efficiency is high, runs noise low.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the vertical rotary vane type compressor according to the embodiment of the present invention;
Fig. 2 is the bent axle of the vertical rotary vane type compressor shown in Fig. 1 and the assembly structure schematic diagram of vane;
Fig. 3 is the assembly structure plan view of the bent axle shown in Fig. 2 and vane;
Fig. 4 is the plan view of the cylinder of the vertical rotary vane type compressor shown in Fig. 1;
Fig. 5 is the side view of the cylinder of the vertical rotary vane type compressor shown in Fig. 1;
Fig. 6 is the upper bearing (metal) sectional view of the vertical rotary vane type compressor shown in Fig. 1;
Fig. 7 is the plan view of the upper bearing (metal) of the vertical rotary vane type compressor shown in Fig. 1.
Reference character:
Vertical rotary vane type compressor 100;
Casing 1; Intakeport 11; Relief opening 12;
Compression member 2;
Cylinder 21; Cylinder chamber 211; Cylinder vent 212; Exhaust valve plate 213;
Upper bearing (metal) 22; Air aspiration cavity 221; Hub portion 222; Flange part 223; Through hole 2231; Groove 224; Shirt rim
225; Shirt rim through hole 2251; Trimming 226;
Lower bearing 23;
Bent axle 24; Push stopping part 241;
Vane 25; Vane slot 251;
Motor 3; Stator 31; Rotor 32;
Dividing plate 4; Bulkhead through-hole 41;
Cover plate 5.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1-Fig. 7, the vertical rotary vane type compressor 100 according to the embodiment of the present invention is described.Vertical rotary vane type compressor 100 according to the embodiment of the present invention comprises: casing 1 and compression member 2.Wherein, the sidewall of casing 1 is provided with intakeport 11, the top of casing 1 is provided with relief opening 12, that is, vertical rotary vane type compressor 100 carries out return-air from the intakeport 11 sidewall of casing 1, discharge from the relief opening 12 at the top of casing 1 after cold media air completes compression in this vertical rotary vane type compressor 100, this vertical rotary vane type compressor 100 meets the intake and exhaust structure of existing vertical compressor, and therefore versatility is high.
Further, compression member 2 is located in casing 1, and vertical rotary vane type compressor 100 also comprises driver part, and driver part to be located in casing 1 and to be positioned at the top of compression member 2.Alternatively, driver part can be motor 3, and motor 3 can comprise stator 31 and rotor 32.Compression member 2 comprises: cylinder 21, upper bearing (metal) 22, lower bearing 23, bent axle 24, vane 25 and multiple slide plate (scheming not shown).
Have cylinder chamber 211 in cylinder 21, upper bearing (metal) 22 is located at cylinder 21 upper end and the upper end of capping cylinder chamber 211, and lower bearing 23 is located at cylinder 21 lower end and the lower end of capping cylinder chamber 211.Air aspiration cavity 221 is limited in upper bearing (metal) 22, air aspiration cavity 221 is for being communicated with intakeport 11 and cylinder chamber 211, that is, the return-air of vertical rotary vane type compressor 100 is entered in air aspiration cavity 221 by intakeport 11, then enters in cylinder chamber 211 from air aspiration cavity 221 and compress.The sidewall of cylinder chamber 211 is provided with cylinder vent 212, and the inner space of cylinder vent 212 and casing 1, the cold media air after overcompression can be discharged in the inner chamber of casing 1 by exhaust port, and then discharges from the top of casing 1 again.
Further, cylinder 21 outer side wall is also provided with exhaust valve plate 213, exhaust valve plate 213 can open and close cylinder vent 212 under the influence of air pressure, and exhaust can be made thus more reasonable.
Further, bent axle 24 is from top to bottom successively through upper bearing (metal) 22, cylinder 21 and lower bearing 23, bent axle 24 is connected to be rotated about axis under the driving of driver part with driver part, vane 25 fixed cover to be located on bent axle 24 and to be contained in cylinder chamber 211, due between vane 25 with bent axle 24 for being fixedly connected with, vane 25 therefore can be driven to rotate with identical angular velocity when bent axle 24 rotates.Vane 25 is provided with the multiple vane slots 251 radially distributed, as shown in Figure 3, multiple slide plate is located in multiple vane slot 251 respectively slidably, cylinder chamber 211 is divided into multiple isolated chamber by vane 25 and multiple slide plate, that is, the height of each slide plate can be equal with the height of cylinder chamber 211, and in the process that each slide plate slides in vane slot 251, the outer end of slide plate is only against on the madial wall of cylinder chamber 211 all the time, be described chamber between adjacent two slide plates, the refrigerant entered from air-inlet cavity can be distributed in multiple chamber, along with the High Rotation Speed of vane 25, cold media air in each chamber can be compressed and be discharged by the cylinder vent 212 on cylinder 21.
Alternatively, vane 25 and bent axle 24 can be fixed connection mechanically, such as interference fit, welding etc., and certainly alternatively, vane 25 and bent axle 24 can also be integrally formed, and such as vane 25 and bent axle 24 can be integrally formed by the mode of casting.
According to the vertical rotary vane type compressor 100 of the embodiment of the present invention, vane 25 rotates under the drive of bent axle 24, because vane 25 is provided with the multiple vane slots 251 radially distributed, thus multiple chamber can be formed in the circumferential direction of vane 25, can cancel out each other or weaken by the chamber of the multiple phase difference of continuous print the unbalance moment that the inherent pressurized gas of cylinder 21 produces thus.And this vertical rotary vane type compressor 100 from return-air the sidewall of casing 1 and from the top vent of casing 1, thus can meet the mounting structure of the suction and discharge of existing vertical compressor, thus make the applied range of this vertical rotary vane type compressor 100.
As shown in Figure 4 and Figure 5, cylinder chamber 211 is projected as oval hole shape in horizontal plane, and cylinder vent 212 comprises two groups and two groups of exhaust ports lay respectively at the major axis both sides of the cylinder chamber 211 of oval hole shape.Here it should be noted that, " major axis of the cylinder chamber 211 of oval hole shape " is as the line L1 in Fig. 4, i.e. a line the longest in the heart in the cylinder chamber 211 of long circle hole shape.Wherein, two groups of cylinder vents 212 to be centrosymmetric distribution relative to the cylinder chamber 211 of oval hole shape, thus, when in vane 25 rotary course, can be exhausted from two groups of cylinder vents 212, and then can realize repeatedly continuously and possess the air-breathing of phase difference, compression and exhaust process.As shown in Figure 5, often organize cylinder vent 212 and comprise isolated two cylinder vents 212, two cylinder vents 212 up and down and be positioned at the both sides of the vertical center line of cylinder 21 axis in the vertical direction, the exhaust of cylinder 21 can be made thus more even.
As shown in Figure 2, alternatively, bent axle 24 is provided with the push stopping part 241 of annular, and push stopping part 241 is positioned at the lower end of vane 25 and is supported on lower bearing 23, wherein the external diameter of push stopping part 241 is greater than the external diameter of bent axle 24 agent structure, and the external diameter of push stopping part 241 is less than the external diameter of vane 25.By arranging push stopping part 241 thus can avoiding the contact friction between vane 25 and lower bearing 23, thus can reduce friction, and then the rotation of vane 25 can be made more flexible, the long service life of component, the performance of vertical rotary vane type compressor 100 is better.
As shown in Figure 1, vertical rotary vane type compressor 100 also comprises dividing plate 4, and dividing plate 4 is located between push stopping part 241 and lower bearing 23, and its central diaphragm 4 is provided with the bulkhead through-hole 41 for dodging push stopping part 241.By arranging dividing plate 4, thus the gap because arranging push stopping part 241 between cylinder 21 and lower bearing 23 can be filled, ensureing the planarization that cylinder 21 and vane 25 are installed.Wherein the lower end surface of cylinder 21 and vane 25 is supported on the upper surface of dividing plate 4 respectively.
Wherein, the diameter of through hole 2231 is greater than the diameter of push stopping part 241 and is less than the diameter of the outer most edge shape of vane 25, push stopping part 241 is contained in bulkhead through-hole 41, and the height of dividing plate 4 is equal with the height of push stopping part 241, and the installation of cylinder 21 and vane 25 can be made thus more smooth, stable.
As shown in Figure 6 and Figure 7, upper bearing (metal) 22 comprises: the flange part 223 that barrel-shaped hub portion 222 and the lower end periphery face around hub portion 222 are arranged, bent axle 24 is through hub portion 222, the outer rim of flange part 223 is provided with the shirt rim 225 that upwards extends to form the groove 224 of open upper end on upper bearing (metal) 22, vertical rotary vane type compressor 100 also comprises cover plate 5, cover plate 5 lid is located at the opening of groove 224 to limit air aspiration cavity 221, and wherein flange part 223 is provided with through hole 2231 to be communicated with cylinder chamber 211.The structure of upper bearing (metal) 22 is simple thus, and can by arranging shirt rim 225 and be located at cover plate 5 in the outer rim of flange part 223, thus the formation of air aspiration cavity 221 can be made convenient.Shirt rim 225 is provided with shirt rim through hole 2251 for being communicated with intakeport 11 and air aspiration cavity 221, that is, as shown in Figure 6, shirt rim 225 is provided with the shirt rim through hole 2251 running through it, the return-air of vertical rotary vane type compressor 100 is after intakeport 11, enter in air aspiration cavity 221 through shirt rim through hole 2251 again, further, cold media air enters in cylinder chamber 211 and compresses after the through hole 2231 in flange part 223.
As shown in Figure 7, alternatively, the periphery wall of upper bearing (metal) 22 is provided with trimming 226 structure with the communicating passage with the inner chamber limited between the inwall of casing 1 for being communicated with cylinder vent 212 and casing 1.Because upper bearing (metal) 22 is located at the upper end of cylinder 21, cylinder vent 212 is formed on the sidewall of cylinder chamber 211, that is, cylinder vent 212 is located on the sidewall of cylinder 21, therefore cylinder 21 is formed as lateral exhaust structure, therefore after being used for, between the inwall of casing 1, there is trimming 226 structure of intended distance by setting on upper bearing (metal) 22, the cold media air of discharging from cylinder vent 212 can be made upwards to be drained into the inner chamber of casing 1 by the distance between trimming 226 and casing 1 inwall, that is, the space formed between trimming 226 and casing 1 inwall forms communicating passage, make the structure of vertical rotary vane type compressor 100 more reasonable thus.
Second aspect present invention embodiment proposes a kind of air-conditioning system, comprises the vertical rotary vane type compressor 100 of embodiment according to a first aspect of the present invention.Because the vertical rotary vane type compressor 100 according to the embodiment of the present invention has above-mentioned beneficial effect, therefore by arranging this vertical rotary vane type compressor 100 thus can making the refrigerating/heating better effects if of air-conditioning system, efficiency is high, runs noise low.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a vertical rotary vane type compressor, is characterized in that, comprising:
Casing, the sidewall of described casing is provided with intakeport, and the top of described casing is provided with relief opening;
Compression member, described compression member to be located in described casing and to comprise:
Cylinder, has cylinder chamber in described cylinder, and the sidewall of described cylinder chamber is provided with the cylinder vent with the inner space of described casing;
Upper bearing (metal), described upper bearing (metal) is located at described cylinder upper end, limits air aspiration cavity in described upper bearing (metal), and described air aspiration cavity is for being communicated with described intakeport and described cylinder chamber;
Lower bearing, described lower bearing is located at described cylinder lower end;
Bent axle, described from top to bottom successively through described upper bearing (metal), described cylinder and described lower bearing, described bent axle is rotatable around axis;
Vane, described vane fixed cover to be located on described bent axle and to be contained in described cylinder chamber, and described vane is provided with the multiple vane slots radially distributed;
Multiple slide plate, described multiple slide plate is located in described multiple vane slot respectively slidably, and described cylinder chamber is divided into multiple isolated chamber by described vane and described multiple slide plate.
2. vertical rotary vane type compressor according to claim 1, is characterized in that, described bent axle is provided with the push stopping part of annular, and described push stopping part is positioned at the lower end of described vane and is supported on described lower bearing, and described vertical rotary vane type compressor also comprises:
Dividing plate, described dividing plate is located between described push stopping part and described lower bearing, and wherein said dividing plate is provided with the bulkhead through-hole for dodging described push stopping part.
3. vertical rotary vane type compressor according to claim 2, is characterized in that, the diameter of described bulkhead through-hole is greater than the diameter of described push stopping part and is less than the diameter of the outer most edge shape of described vane, and the height of described dividing plate is equal with the height of described push stopping part.
4. vertical rotary vane type compressor according to claim 1, it is characterized in that, described cylinder chamber is projected as oval hole shape in horizontal plane, and described cylinder vent comprises two groups and described two groups of exhaust ports lay respectively at the major axis both sides of the cylinder chamber of described oval hole shape.
5. vertical rotary vane type compressor according to claim 4, is characterized in that, described two groups of cylinder vents to be centrosymmetric distribution relative to the cylinder chamber of described oval hole shape.
6. vertical rotary vane type compressor according to claim 4, is characterized in that, often organizes described cylinder vent and comprises isolated two cylinder vents up and down.
7. vertical rotary vane type compressor according to claim 1, it is characterized in that, described upper bearing (metal) comprises: the flange part that barrel-shaped hub portion and the lower end periphery face around described hub portion are arranged, the outer rim of described flange part is provided with the shirt rim that upwards extends to form the groove of open upper end on described upper bearing (metal)
Described vertical rotary vane type compressor also comprises cover plate, and described cover plate lid is located at the opening of described groove to limit described air aspiration cavity, and described flange part is provided with through hole to be communicated with described cylinder chamber.
8. vertical rotary vane type compressor according to claim 7, is characterized in that, described shirt rim is provided with shirt rim through hole for being communicated with described intakeport and described air aspiration cavity.
9. vertical rotary vane type compressor according to claim 1, is characterized in that, the periphery wall of described upper bearing (metal) is provided with trimming structure with the communicating passage with the inner chamber limited between the inwall of described casing for being communicated with described cylinder vent and described casing.
10. an air-conditioning system, is characterized in that, comprises the vertical rotary vane type compressor according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332955.1A CN104895788B (en) | 2015-06-16 | 2015-06-16 | Vertical rotary vane type compressor and the air conditioning system with which |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332955.1A CN104895788B (en) | 2015-06-16 | 2015-06-16 | Vertical rotary vane type compressor and the air conditioning system with which |
Publications (2)
| Publication Number | Publication Date |
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| CN104895788A true CN104895788A (en) | 2015-09-09 |
| CN104895788B CN104895788B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510332955.1A Expired - Fee Related CN104895788B (en) | 2015-06-16 | 2015-06-16 | Vertical rotary vane type compressor and the air conditioning system with which |
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| Country | Link |
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Cited By (3)
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| CN105952644A (en) * | 2016-07-07 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary-vane-type compressor |
| CN111963431A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN113708544A (en) * | 2021-08-06 | 2021-11-26 | 华能通辽风力发电有限公司 | Electric generator |
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| CN204729297U (en) * | 2015-06-16 | 2015-10-28 | 广东美芝制冷设备有限公司 | Vertical rotary vane type compressor and the air-conditioning system with it |
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| US3790311A (en) * | 1972-11-27 | 1974-02-05 | Gen Motors Corp | Four vane elliptical rotary air conditioning compressor |
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| CN111963431A (en) * | 2020-07-24 | 2020-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN113708544A (en) * | 2021-08-06 | 2021-11-26 | 华能通辽风力发电有限公司 | Electric generator |
| CN113708544B (en) * | 2021-08-06 | 2023-12-01 | 华能通辽风力发电有限公司 | Electric generator |
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| Publication number | Publication date |
|---|---|
| CN104895788B (en) | 2017-03-29 |
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