CN108518338A - Refrigeration compressor and refrigeration equipment - Google Patents
Refrigeration compressor and refrigeration equipment Download PDFInfo
- Publication number
- CN108518338A CN108518338A CN201810568983.7A CN201810568983A CN108518338A CN 108518338 A CN108518338 A CN 108518338A CN 201810568983 A CN201810568983 A CN 201810568983A CN 108518338 A CN108518338 A CN 108518338A
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- China
- Prior art keywords
- supercharging
- refrigeration
- gear
- compressor
- supercharging device
- 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.)
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Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 79
- 239000003507 refrigerant Substances 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 47
- 239000012535 impurity Substances 0.000 claims description 10
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
Abstract
The invention discloses a kind of refrigeration compressor and refrigeration equipments, are related to technical field of refrigeration equipment, the few technical problem of the refrigerant gas amount to alleviate compressor sucking existing in the prior art.The refrigeration compressor is used for refrigeration equipment, and it includes compressor body and supercharging device that the refrigeration equipment, which is internally provided with evaporator,；The air inlet pipe of the supercharging device is connected to the evaporator of the refrigeration equipment, escape pipe is connected to the air inlet pipe of the compressor body, output is to the compressor body after refrigerant compression for exporting the evaporator, to increase the air inflow of the unit interval of the compressor body.The refrigeration equipment includes above-mentioned refrigeration compressor.Technical scheme of the present invention makes that more refrigerant gas can be sucked in the compressor body unit interval, enhances the performance of compressor body, improves the refrigerating efficiency of refrigeration equipment.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly, to a kind of refrigeration compressor and refrigeration equipment.
Background technology
Refrigeration compressor is the heart of refrigeration system, it sucks the refrigerant gas of low-temp low-pressure from air entry, passes through electricity
After machine operating band piston compresses it, the refrigerant gas of high temperature and pressure is discharged to gas vent, is cooling cycle system
Power is provided, to realize the refrigeration cycle of compression, condensation, expansion, evaporation.From air entry suck refrigerant gas it is more
It is few, it appears it is particularly important, directly affect the performance of compressor.
Existing refrigeration compressor all uses natural aspiration mode, and the refrigerant gas amount sucked in the unit interval is few, from
And limit the performance of compressor.
The information for being disclosed in the background technology part is merely intended to deepen the understanding to general background technology of the present invention, without
It should be considered as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Invention content
The purpose of the present invention is to provide a kind of refrigeration compressor and refrigeration equipments, to alleviate pressure existing in the prior art
The few technical problem of refrigerant gas amount of contracting machine sucking.
To solve the above problems, the present invention provides following technical scheme：
A kind of refrigeration compressor, is used for refrigeration equipment, and the refrigeration equipment is internally provided with evaporator, including compressor sheet
Body and supercharging device；
The air inlet pipe of the supercharging device is connected to the evaporator of the refrigeration equipment, escape pipe and the compressor body
Air inlet pipe connection, output is to the compressor body after the refrigerant compression for exporting the evaporator, to increase
The air inflow of the unit interval of the compressor body.
Further,
Bent axle is provided in the compressor body, the supercharging device is installed on the inside of the compressor body, and
It is connect with the bent axle, the bent axle is for driving the supercharging device.
Further,
The supercharging device includes supercharging shell and supercharging impeller；
The shell is provided with booster cavity and the air inlet runner being connected to respectively with the booster cavity and goes out flow channel；
The air inlet runner is connected to the air inlet pipe of the supercharging device, it is described go out flow channel and the supercharging device go out
Tracheae is connected to；
The supercharging impeller is installed on the booster cavity and can be rotated around own axes, and is connect with the transmission of crankshaft.
Further,
The supercharging device further includes filter mechanism, and the filter mechanism is installed in the supercharging shell and close to described
The runner mouth of air inlet runner.
Further,
The filter mechanism includes the first strainer and the second strainer；
Runner mouth of first strainer towards flow channel, second strainer deviate from the runner mouth of the flow channel, and
First strainer surrounds accommodation space with second strainer, and the accommodation space is miscellaneous in refrigerant gas for collecting
Matter.
Further,
The filter mechanism is detachably connected with the supercharging shell.
Further,
The supercharging device further includes speed increasing mechanism, and the input terminal of the speed increasing mechanism is connected to the bent axle, output end
It is connected to the supercharging impeller, and the output end of the speed increasing mechanism and the supercharging impeller are coaxial.
Further,
The speed increasing mechanism includes first gear and second gear；
The first gear is connected to the bent axle, and the second gear is connected to the supercharging impeller；
The first gear is engaged with the second gear, and the number of teeth of the first gear is more than the second gear
The number of teeth.
Further,
The supercharging device further includes puigging, and the puigging is set to the inner wall of the supercharging shell.
A kind of refrigeration equipment, including above-mentioned refrigeration compressor.
In conjunction with above technical scheme, the advantageous effect that the present invention is brought is analyzed as follows：
The present invention provides a kind of refrigeration compressor, including compressor body and supercharging device；The air inlet pipe of supercharging device with
The evaporator of refrigeration equipment is connected to, and escape pipe is connected to the air inlet pipe of compressor body, and the refrigeration for exporting evaporator is situated between
Output is to compressor body after matter compression, to increase the air inflow of the unit interval of compressor body.The refrigeration compressor receives
Carry out the refrigerant gas of flash-pot, refrigerant gas initially enters supercharging device, and supercharging device tentatively presses refrigerant gas
Contracting, then will compressor body be sent by the refrigerant gas after primary compression；Then, compressor body again to refrigerant gas into
Row compression.
Supercharging device in the refrigeration compressor makes that more refrigerant gas can be sucked in the compressor body unit interval
Body enhances the performance of compressor body.
A kind of refrigeration equipment provided by the invention includes above-mentioned refrigeration compressor.Since the performance of compressor body increases
By force, the refrigerating efficiency higher of the refrigeration equipment.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And the structure specifically noted by attached drawing is realized and is obtained.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of embodiment of refrigeration compressor provided by the invention；
Fig. 2 is the structural schematic diagram of the another embodiment of refrigeration compressor provided by the invention；
Fig. 3 is the structural scheme of mechanism of supercharging device provided by the invention；
Fig. 4 is the internal mechanism schematic diagram of supercharging device provided by the invention；
Fig. 5 is the structural schematic diagram of the filter mechanism of supercharging device provided by the invention.
Icon：1- compressor bodies；11- bent axles；2- supercharging devices；21- shells；211- booster cavities；212- into
Flow channel；213- goes out flow channel；22- supercharging impellers；23- filter mechanisms；The first strainers of 231-；The second strainers of 232-；
24- speed increasing mechanisms；241- first gears；242- second gears.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1 and embodiment 2 are described in detail below in conjunction with the accompanying drawings：
Embodiment 1
The present embodiment provides a kind of refrigeration compressors, please also refer to Fig. 1 to Fig. 5 in Figure of description.
As depicted in figs. 1 and 2, Fig. 1 and Fig. 2 is two kinds of embodiments of the refrigeration compressor.The refrigeration compressor, is used for
Refrigeration equipment, refrigeration equipment are internally provided with evaporator, including compressor body 1 and supercharging device 2；The air inlet of supercharging device 2
Pipe is connected to the evaporator of refrigeration equipment, and escape pipe is connected to the air inlet pipe of compressor body 1, the system for exporting evaporator
Output is to compressor body 1 after cold medium compression, to increase the air inflow of the unit interval of compressor body 1.
The refrigeration compressor receives the refrigerant gas for carrying out flash-pot, and refrigerant gas initially enters supercharging device 2, increases
Pressure device 2 is by refrigerant gas primary compression, then will be sent into compressor body 1 by the refrigerant gas after primary compression；Then,
Compressor body 1 again compresses refrigerant gas.
Supercharging device 2 in the refrigeration compressor makes that in 1 unit interval of compressor body more refrigerants can be sucked
Gas enhances the performance of compressor body 1.
The embodiment of refrigeration compressor in Fig. 2 described in detail below.Fig. 2 is that the refrigeration compressor takes out the knot after shell
Structure schematic diagram.
Be provided with bent axle 11 in compressor body 1, supercharging device 2 is installed on the inside of compressor body 1, and with bent axle 11
Connection, bent axle 11 is for driving supercharging device 2.
As shown in Fig. 2, the longitudinal end of the bent axle 11 of compressor body 1, i.e., the lower end of bent axle 11 shown in Fig. 2, with increasing
Pressure device 2 connects, and the supercharging impeller 22 inside supercharging device 2 is driven to rotate.The connection type so that the refrigeration compressor
The space outside compressor body 1 is not take up in refrigeration equipment, and it is not necessary that driving mechanism, structure is separately provided for the supercharging device 2
Simply.
Supercharging device 2 described in detail below.
As shown in Figure 3 and Figure 4, Fig. 3 is the external structure schematic diagram of supercharging device 2, and Fig. 4 is the internal junction of supercharging device 2
Structure schematic diagram.Supercharging device 2 includes supercharging shell 21 and supercharging impeller 22；Shell 21 be provided with booster cavity 211 and respectively with
The air inlet runner 212 and go out flow channel 213 that booster cavity 211 is connected to；Air inlet runner 212 is connected to the air inlet pipe of supercharging device 2, is gone out
Flow channel 213 is connected to the escape pipe of supercharging device 2；Supercharging impeller 22 is installed on booster cavity 211 and can be rotated around own axes,
And it is sequentially connected with bent axle 11.
In specific implementation process, booster cavity 211, booster cavity are flowed into through air inlet pipe by the refrigerant gas of evaporator output
22 continuous rotation of supercharging impeller is by refrigerant gas primary compression in 211, and the refrigerant gas after primary compression is through escape pipe stream
Enter compressor body 1.Supercharging impeller 22 accelerates the flowing of refrigerant gas, increases in 1 unit interval of compressor body
Air inflow improves the performance of compressor body 1.
It should be noted that the longitudinal end of bent axle 11 can directly be connect with supercharging impeller 22, can also be grown in bent axle 11
Speed increasing mechanism 24 is set between axis and supercharging impeller 22.
The filter mechanism 23 of the supercharging device 2 described in detail below.
As shown in figure 4, supercharging device 2 further includes filter mechanism 23, filter mechanism 23 is installed in supercharging shell 21 and leans on
The runner mouth of nearly air inlet runner 212.
As shown in figure 5, filter mechanism 23 includes the first strainer 231 and the second strainer 232；First strainer 231 is towards air inlet
The runner mouth of runner 212, the second strainer 232 deviate from the runner mouth of air inlet runner 212, and the first strainer 231 and the second strainer 232
Accommodation space is surrounded, accommodation space is used to collect the impurity in refrigerant gas.
In specific implementation process, after refrigeration equipment long-time use, when refrigerant gas recycles in refrigeration equipment, pipeline
Inner wall has a small amount of clast and peels off, and clast can be recycled with refrigerant gas in the pipeline of refrigeration equipment.If clast is attached to fortune
When the mechanical part turned, the abrasion of mechanical part will necessarily be caused.Setting filter mechanism 23 can filter out in supercharging device 2
Impurity in refrigerant gas protects the mechanical part of operating, extends the service life of refrigeration equipment.
Refrigerant gas carries impurity and enters from the mesh of the first strainer 231, and a part of impurity can be by the second strainer 232
Blocking, refrigerant gas and another part impurity are flowed out from the mesh of the second strainer 232.Refrigerant gas is repeatedly by the
After one strainer 231 and the second strainer 232, the impurity in refrigerant gas can be filtered completely.
To reach better filter effect, the mesh diameter of the second strainer 232 can be made to be less than the mesh of the first strainer 231
Diameter.The setting makes the impurity of the mesh diameter more than the second strainer 232 and the mesh diameter less than the first strainer 231, can
It is once filtered out, improves filter efficiency.
Chemical fibre material, which may be used, in first strainer 231 and the second strainer 232 can also use metal material.
It should be noted that filter mechanism 23 is gone back in addition to using the structure of above-mentioned first strainer, 231 and second strainer 232
Other structures form may be used.For example, it is also possible to using the knot for increasing filter cotton between three layers of filter structure or two layers of strainer
Structure.
In the alternative of the present embodiment, more preferably,
Filter mechanism 23 is detachably connected with supercharging shell 21.
After 23 long-time use of filter mechanism, there are there is a large amount of impurity between the first strainer 231 and the second strainer 232, this
A little impurity can influence the filter effect of filter mechanism 23.The structure type side that filter mechanism 23 and supercharging shell 21 are detachably connected
Just filter mechanism 23 is periodically disassembled and is cleaned by the user of refrigeration equipment.
Certainly, filter mechanism 23 can also be fixedly connected with supercharging shell 21.When needing to clean filter mechanism 23,
Supercharging shell 21 is dismantled, is directly cleaned to being installed on the filter mechanism 23 inside shell 21.
The speed increasing mechanism 24 of the supercharging device 2 described in detail below.
As shown in figure 4, supercharging device 2 further includes speed increasing mechanism 24, the input terminal of speed increasing mechanism 24 is connected to bent axle 11, defeated
Outlet is connected to supercharging impeller 22, and the output end of speed increasing mechanism 24 and supercharging impeller 22 are coaxial.
Speed increasing mechanism 24 increases the rotating speed of supercharging impeller 22, and then further increases 1 unit interval of compressor body
Interior refrigerant gas soakage improves the performance of compressor body 1.
In the alternative of the present embodiment, more preferably,
As shown in figure 4, speed increasing mechanism 24 includes first gear 241 and second gear 242；First gear 241 is connected to song
Axis 11, second gear 242 are connected to supercharging impeller 22；First gear 241 is engaged with second gear 242, and first gear 241
The number of teeth is more than the number of teeth of second gear 242.
As shown in figure 4, first gear 241 and second gear 242 are bevel gear, and the center line of first gear 241 with
The central axis of second gear 242.
It should be noted that speed increasing mechanism 24 in addition to above structure, can also use other structures form.It is exemplified below：
Speed increasing mechanism 24 includes first gear 241 and second gear 242, and first gear 241 and second gear 242 are circle
Stud wheel, first gear 241 are connected to bent axle 11, and second gear 242 is connected to supercharging impeller 22；First gear 241 and second
Gear 242 engages, and the number of teeth of first gear 241 is more than the number of teeth of second gear 242.
Speed increasing mechanism 24 includes first pulley and the second belt wheel, and first pulley is connected to bent axle 11, and the second belt wheel is connected to
Supercharging impeller 22；First pulley is connected with the second belt wheel by belt transmission, and the diameter of first pulley is more than the second belt wheel
Diameter.
Speed increasing mechanism 24 includes the first friction pulley and the second friction pulley, and the first friction pulley is connected to bent axle 11, the second friction
Wheel is connected to supercharging impeller 22；First friction pulley and the second friction pulley frictional drive, and the diameter of the first friction pulley is more than second
The diameter of friction pulley.
The puigging of the supercharging device 2 described in detail below.
Supercharging device 2 further includes puigging, and puigging is set to the inner wall of supercharging shell 21.Sound insulation may be used in puigging
Cotton material.
Since the rotating speed of supercharging impeller 22 is higher, larger noise is necessarily will produce, puigging can obstruct noise transmission
To outside refrigeration equipment, the influence of noise on human is reduced.
Embodiment 2
The present embodiment provides a kind of refrigeration equipments, please also refer to Fig. 1 to Fig. 5 in Figure of description.
The refrigeration equipment includes the refrigeration compressor of the offer of embodiment 1.
The refrigeration equipment can be refrigerator, refrigerator-freezer, air-conditioning etc..The refrigeration compressor that the refrigeration equipment includes is either figure
Structure shown in 1 can also be structure shown in Fig. 2 to Fig. 4.
Compared to existing compressor, the refrigeration compressor enhancing that embodiment 1 provides, then the refrigerating efficiency of the refrigeration equipment is more
It is high.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of refrigeration compressor, is used for refrigeration equipment, the refrigeration equipment is internally provided with evaporator, which is characterized in that packet
Include compressor body (1) and supercharging device (2)；
The air inlet pipe of the supercharging device (2) is connected to the evaporator of the refrigeration equipment, escape pipe and the compressor body
(1) air inlet pipe connection exports after the refrigerant compression for exporting the evaporator to the compressor body (1),
To increase the air inflow of the unit interval of the compressor body (1).
2. refrigeration compressor according to claim 1, which is characterized in that
It is provided with bent axle (11) in the compressor body (1), the supercharging device (2) is installed on the compressor body (1)
Inside, and connect with the bent axle (11), the bent axle (11) is for driving the supercharging device (2).
3. refrigeration compressor according to claim 2, which is characterized in that
The supercharging device (2) includes supercharging shell (21) and supercharging impeller (22)；
The air inlet runner that the shell (21) is provided with booster cavity (211) and is connected to respectively with the booster cavity (211)
(212) and go out flow channel (213)；
The air inlet runner (212) is connected to the air inlet pipe of the supercharging device (2), it is described go out flow channel (213) and the increasing
The escape pipe of pressure device (2) is connected to；
The supercharging impeller (22) is installed on the booster cavity (211) and can be rotated around own axes, and with the bent axle (11)
It is sequentially connected.
4. refrigeration compressor according to claim 3, which is characterized in that
The supercharging device (2) further includes filter mechanism (23), and the filter mechanism (23) is installed on the supercharging shell (21)
Runner mouth interior and close to the air inlet runner (212).
5. refrigeration compressor according to claim 4, which is characterized in that
The filter mechanism (23) includes the first strainer (231) and the second strainer (232)；
The runner mouth of first strainer (231) the object gas flow road (212), second strainer (232) deviate from the flow channel
(212) runner mouth, and first strainer (231) surrounds accommodation space, the accommodation space with second strainer (232)
For collecting the impurity in refrigerant gas.
6. refrigeration compressor according to claim 4, which is characterized in that
The filter mechanism (23) is detachably connected with the supercharging shell (21).
7. refrigeration compressor according to claim 5, which is characterized in that
The supercharging device (2) further includes speed increasing mechanism (24), and the input terminal of the speed increasing mechanism (24) is connected to the bent axle
(11), output end is connected to the supercharging impeller (22), and the output end of the speed increasing mechanism (24) and the supercharging impeller
(22) coaxial.
8. refrigeration compressor according to claim 7, which is characterized in that
The speed increasing mechanism (24) includes first gear (241) and second gear (242)；
The first gear (241) is connected to the bent axle (11), and the second gear (242) is connected to the supercharging impeller
(22)；
The first gear (241) is engaged with the second gear (242), and the number of teeth of the first gear (241) is more than institute
State the number of teeth of second gear (242).
9. refrigeration compressor according to claim 8, which is characterized in that
The supercharging device (2) further includes puigging, and the puigging is set to the inner wall of the supercharging shell (21).
10. a kind of refrigeration equipment, which is characterized in that including such as claim 1-9 any one of them refrigeration compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568983.7A CN108518338A (en) | 2018-06-04 | 2018-06-04 | Refrigeration compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568983.7A CN108518338A (en) | 2018-06-04 | 2018-06-04 | Refrigeration compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518338A true CN108518338A (en) | 2018-09-11 |
Family
ID=63426926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568983.7A Pending CN108518338A (en) | 2018-06-04 | 2018-06-04 | Refrigeration compressor and refrigeration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN108518338A (en) |
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| CN1376251A (en) * | 1999-09-24 | 2002-10-23 | 三洋电机株式会社 | Multi-stage compression refrigerating device |
| CN1376252A (en) * | 1999-09-24 | 2002-10-23 | 三洋电机株式会社 | Multi-stage compression refrigerating device |
| US20020069667A1 (en) * | 2000-11-10 | 2002-06-13 | Seung-Don Seo | Supercharging device of hermetic compressor |
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