CN207123101U - Reservoir, compressor and the refrigeration system of compressor - Google Patents

Abstract

The utility model discloses a kind of reservoir of compressor, compressor and refrigeration system, the reservoir of compressor includes：Shell, liquid storage cylinder is limited in shell；Air inlet pipe, air inlet pipe are located at the top of shell and connected with liquid storage cylinder；Escape pipe, escape pipe is located at the bottom of shell, escape pipe includes stretching into the interior pipeline section in liquid storage cylinder and the outer segment on the outside of liquid storage cylinder, interior pipeline section and outer segment communicate with each other, and liquid storage cylinder is separated into the upper liquid storage cylinder to communicate with each other and lower liquid storage cylinder by the plane where the port of interior pipeline section, wherein, following relation is met between the volume V1 of upper liquid storage cylinder, the volume V2 of lower liquid storage cylinder and compressor capacity L：0.55≤V2/ (V1+V2)≤0.72 and V2/L >=1.1.According to the reservoir of compressor of the present utility model, it is ensured that when R290 refrigeration systems meet the refrigerant charge of standard requirement, reservoir disclosure satisfy that the requirement of gas-liquid separation, and can improve the refrigerating capacity and compressor performance of R290 compressors.

Description

Reservoir, compressor and the refrigeration system of compressor

Technical field

Living electric apparatus field is the utility model is related to, more particularly, to a kind of reservoir of compressor, there is the reservoir Compressor and with the compressor refrigeration system.

Background technology

Refrigerant generally has R410A and R22 etc. used by compressor, but because R22 is very big to ozone layer harm, its is gradual Replaced by R410A, and R410A is greenhouse gases, so R410A is nor preferable refrigerant type.At present, more ring The refrigerant R290 of guarantor increasingly attracts attention, and it not but not endangers ozone layer, and its influence to greenhouse effects also pole It is small.

However, the reservoir of the compressor in correlation technique is relatively specific for the refrigerants such as R410A and R22, refrigerant There is property difference in R290 and refrigerant R410A and R22, the reservoir of the compressor in correlation technique uses refrigerant R290 When, its gas-liquid separation performance is unsatisfactory, it is therefore desirable to seeks a kind of reservoir suitable for refrigerant R290.

Utility model content

The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality With a kind of reservoir of compressor of new proposition, the reservoir of the compressor can ensure when R290 refrigeration systems meet standard It is required that refrigerant charge when, reservoir disclosure satisfy that the requirement of gas-liquid separation, and can improve R290 compressors Refrigerating capacity and compressor performance.

The utility model also proposes a kind of compressor of the reservoir with above-mentioned compressor.

The utility model also proposes a kind of refrigeration system with above-mentioned compressor.

According to the reservoir of the compressor of the utility model first aspect embodiment, including：Shell, the shell is interior to be limited Go out liquid storage cylinder；Air inlet pipe, the air inlet pipe are located at the top of the shell and connected with the liquid storage cylinder；Escape pipe, it is described go out Tracheae is located at the bottom of the shell, and the escape pipe includes the interior pipeline section stretched into the liquid storage cylinder and positioned at the liquid storage cylinder The outer segment in outside, said inner tube section and the outer segment communicate with each other, and the plane where the port of said inner tube section is by institute State liquid storage cylinder and be separated into the upper liquid storage cylinder to communicate with each other and lower liquid storage cylinder, wherein, the volume V1 of the upper liquid storage cylinder, the lower storage Meet following relation between the volume V2 of sap cavity and the capacity L of the compressor：0.55≤V2/ (V1+V2)≤0.72 and V2/ L≥1.1。

According to the reservoir of the compressor of the utility model embodiment, pass through the volume V1 for making upper liquid storage cylinder, lower liquid storage cylinder Volume V2 and compressor capacity L between meet following relation：0.55≤V2/ (V1+V2)≤0.72 and V2/L >=1.1, It can ensure that reservoir disclosure satisfy that making for gas-liquid separation when R290 refrigeration systems meet the refrigerant charge of standard requirement With requiring, and the refrigerating capacity and compressor performance of R290 compressors can be improved.

In addition, according to the reservoir of the compressor of the utility model embodiment, there can also be following additional technical feature：

According to one embodiment of the present utility model, as L≤150cm³During/rev, 0.55≤V2/ (V1+V2)≤0.60； Work as 150cm³/ rev ＜ L≤250cm³During/rev, 0.60 ＜ V2/ (V1+V2)≤0.66；As L ＞ 250cm³During/rev, 0.66 ＜ V2/(V1+V2)≤0.72。

According to one embodiment of the present utility model, said inner tube section is formed as vertically extending straight length.

Alternatively, the center line of the center line of the straight length and the liquid storage cylinder overlaps.

According to one embodiment of the present utility model, including multiple, multiple escape pipe intervals are located at the escape pipe The bottom of the shell, and the port of the interior pipeline section of each escape pipe is concordant.

Alternatively, circumferentially-spaced distribution of multiple said inner tube sections along the liquid storage cylinder.

According to one embodiment of the present utility model, the reservoir also includes filter, and the filter is located at In the liquid storage cylinder and between the air inlet pipe and the escape pipe.

It is real according to the compressor of the utility model second aspect embodiment, including according to the above-mentioned first aspect of the utility model Apply the reservoir of the compressor of example.

According to the compressor of the utility model embodiment, by setting according to the above-mentioned first aspect embodiment of the utility model Compressor reservoir so that compressor with above-mentioned reservoir with all advantages, repeat no more here.

According to the refrigeration system of the utility model third aspect embodiment, including according to the above-mentioned second aspect of the utility model The compressor of embodiment.

According to the refrigeration system of the utility model embodiment, implemented by setting according to the above-mentioned second aspect of the utility model Example compressor so that refrigeration system with above-mentioned compressor with all advantages, repeat no more here.

Alternatively, the refrigerant of the refrigeration system filling is R290.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 is the structural representation according to the compressor of the utility model embodiment；

Fig. 2 is the structural representation according to the reservoir of the compressor of the utility model one embodiment；

Fig. 3 is the structural representation according to the reservoir of the compressor of the utility model another embodiment；

Fig. 4 is the graph of a relation between the refrigerating capacity of compressor and V2/ (V1+V2)；

Fig. 5 is the graph of a relation between the performance of compressor and V2/ (V1+V2)；

Fig. 6 is the structural representation according to the refrigeration system of the utility model embodiment.

Reference：

Reservoir 100；

Shell 1；Liquid storage cylinder 11；Upper liquid storage cylinder 111；Lower liquid storage cylinder 112；

Air inlet pipe 2；

Escape pipe 3；Interior pipeline section 31；Port 311；Plane 312；Outer segment 32；

Filter 4；

Compressor 200；

Main casing 2011；Upper shell 2012；Lower house 2013；

Cylinder 202；Bent axle 203；Piston 204；Slide plate 205；Base bearing 206；Supplementary bearing 207；Stator 208；Rotor 209；

Refrigeration system 300；

Indoor heat exchanger 301；Outdoor heat exchanger 302；Throttling arrangement 303；

Four-way reversing valve 304；First valve port 3041；Second valve port 3042；3rd valve port 3043；4th valve port 3044.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axial direction ", " circumference " are based on attached Orientation or position relationship shown in figure, it is for only for ease of and describes the utility model and simplify to describe, rather than instruction or hint Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this The limitation of utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Can be connection or the interaction relationship of two elements of two element internals.For one of ordinary skill in the art Speech, can understand concrete meaning of the above-mentioned term in the utility model as the case may be.

The application is made based on discovery of the inventor to following facts and problem and understanding：

R22 refrigerants are classified as the refrigerant that time limit is phased out by Montreal Protocol.Europe, Japan start to turn to R410A refrigerant replacements, the U.S. start to forbid R22 to use in new refrigeration product.China also accelerates R22 superseded step Cut down, the year two thousand thirty will all eliminate the production and selling of R22 refrigeration products.Some domestic major brands also begin to release R410A and The R290 environment-friendly air conditioner as refrigerant, but R410A GWP value is also bigger than R22, the Kyoto Protocol arranges R410A For the greenhouse gases of controlled discharge, all R410A are nor long-range alternative solution.

The carbon-hydrogen refrigerant R290 popular as newest comparison, i.e. propane, by widely studied concern in industry.But R290 As in cooling cycle system, there is a critically important problem, being exactly that it has combustibility, it is necessary to limit in refrigeration system The enclosed volume of refrigerant.Further, since R290 refrigerants and R410A refrigerant property differences are larger, major embodiment such as following table：(the spy The comparison premise of property is evaporating temperature, condensation temperature, delivery temperature and the air-breathing temperature of the cooling cycle system residing for compressor Spend all same)

As seen from the above table, if obtaining identical refrigerating capacity, using R290 refrigerants compressor capacity than R410A The compressor of refrigerant greatly, while will use the compression horsepower of the compressor of R290 refrigerants smaller than R410A, so R290 The systematic function of refrigerant can be more preferable, and R290 is also to be widely studied and answer as a kind of Substitute Working Mediums of R410A refrigerants at present With.

In addition, described in the inside patent of referenced patent application number 201520495891.2, in R290 and R22 latent heat of vaporization sides Face, R290 refrigerants are approximately 3~4 times of R22, therefore in practical refrigeration system, if obtaining identical cold, take into account consideration R290 combustible refrigerant maximum charging amount requirement, it is using the filling quantity of refrigerant (quality) needed for R290 refrigeration system Using the 25%~40% of R22 refrigerant systems, so, using the system of R290 refrigerants its R290 charging amount actually than Charging amount using R22 the and R410A systems under same ability is much lower.

In consideration of it, the use that the high-efficient compressor for being referred from current general R410A and R22 refrigerants is designed with reservoir The compressor liquid storage device performance of R290 refrigerants is not optimal, and the reservoir structure demand of compressor is directed to R290 refrigerants characteristic again Optimize and revise design.

Therefore, the application proposes a kind of reservoir 100 of compressor 200, the reservoir 100 can ensure when R290 freezes When system 300 meets the refrigerant charge of standard requirement, reservoir 100 disclosure satisfy that the requirement of gas-liquid separation, and The refrigerating capacity and the performance of compressor 200 of R290 compressors 200 can be improved.

Reservoir below with reference to Fig. 1-Fig. 5 descriptions according to the compressor 200 of the utility model first aspect embodiment 100, reservoir 100 is the important component of compressor 200, can play storage, gas-liquid separation, filtering, noise reduction and refrigeration The effect of agent buffering.It should be noted that the reservoir 100 of the application goes for any type of compressor 200, such as Reciprocating compressor 200, rotary compressor 200 etc..

As shown in Figure 1-Figure 3, included according to the reservoir 100 of the compressor 200 of the utility model embodiment：Shell 1, enter Tracheae 2 and escape pipe 3.

Liquid storage cylinder 11 is limited in shell 1, air inlet pipe 2 is located at the top of shell 1 and connected with liquid storage cylinder 11, reservoir Refrigerant outside 100 can be entered in liquid storage cylinder 11 from air inlet pipe 2, and gas-liquid separation is carried out in liquid storage cylinder 11.Outlet Pipe 3 is located at the bottom of shell 1, and escape pipe 3 includes the interior pipeline section 31 stretched into liquid storage cylinder 11 and positioned at the outer of the outside of liquid storage cylinder 11 Pipeline section 32, interior pipeline section 31 and outer segment 32 communicate with each other.Refrigerant gas part after gas-liquid separation enters the inner tube of escape pipe 3 Section 31, and outer segment 32 is flowed to by interior pipeline section 31, outer segment 32 is suitable to the compression chamber of connection compressor 200, i.e., after gas-liquid separation Refrigerant gas part pass sequentially through to enter in compression chamber after interior pipeline section 31 and outer segment 32 and be compressed.

Wherein, as shown in Fig. 2-Fig. 3, plane 312 where the port of the interior pipeline section 31 of air inlet pipe 2 311 is by liquid storage cylinder 11 are separated into the upper liquid storage cylinder 111 to communicate with each other and lower liquid storage cylinder 112, and the refrigerant outside reservoir 100 enters from air inlet pipe 2 Into liquid storage cylinder 11, and gas-liquid separation is carried out in liquid storage cylinder 11, gas part is located at the top of liquid storage cylinder 11, liquid portion position In the bottom of liquid storage cylinder 11.Inventors herein have recognized that the appearance of the gas-liquid separation effect of reservoir 100 and upper liquid storage cylinder 111 Correlation in close relations between product V1, the volume V2 of lower liquid storage cylinder 112 and the capacity L of compressor 200.Inventor is then to liquid storage Gas-liquid separation effect and the volume V1 of upper liquid storage cylinder 111, the volume V2 and pressure of lower liquid storage cylinder 112 of the device 100 to R290 refrigerants Relation between the capacity L of contracting machine 200 is studied, and is drawn by lot of experiment validation：

Meet between volume V1, lower liquid storage cylinder 112 volume V2 and the capacity L of compressor 200 when upper liquid storage cylinder 111 Following relation：When 0.55≤V2/ (V1+V2)≤0.72 and V2/L >=1.1, coordinate the system of compressor 200 using R290 refrigerants It is may insure when R290 meets the refrigerant charge under flammable standard requirement, its reservoir 100 disclosure satisfy that gas-liquid point From real requirement, it is ensured that the reliability of compressor 200, and the cold of compressor 200 can be improved, lift compressor 200 Performance, operational efficiency are higher.Wherein Fig. 4 and Fig. 5 is respectively illustrated between the refrigerating capacity of compressor 200 and V2/ (V1+V2) Relation between relation, the performance of compressor 200 and V2/ (V1+V2).

According to the reservoir 100 of the compressor 200 of the utility model embodiment, by make upper liquid storage cylinder 111 volume V1, Meet following relation between the volume V2 of lower liquid storage cylinder 112 and the capacity L of compressor 200：0.55≤V2/(V1+V2)≤ 0.72 and V2/L >=1.1, it is ensured that when R290 refrigeration systems 300 meet the refrigerant charge of standard requirement, reservoir 100 disclosure satisfy that the requirement of gas-liquid separation, and can improve the refrigerating capacity and compressor 200 of R290 compressors 200 Performance.

Wherein, the volume V1 of upper liquid storage cylinder 111, the volume V2 of lower liquid storage cylinder 112 and compressor 200 capacity L list Position is corresponding, such as the cm when the volume V1 of upper liquid storage cylinder 111 and the volume V2 volume unit of lower liquid storage cylinder 112 are³When, compression The capacity L of machine 200 unit is cm³/rev。

In one embodiment of the present utility model, as L≤150cm³During/rev, 0.55≤V2/ (V1+V2)≤0.60, Work as 150cm³/ rev ＜ L≤250cm³During/rev, 0.60 ＜ V2/ (V1+V2)≤0.66, as L ＞ 250cm³During/rev, 0.66 ＜ V2/(V1+V2)≤0.72.Thus, the demand of refrigerating capacity is corresponded to according to R290, under the capacity L of different compressors 200, by V1/ V value is set in a more rational interval range, can preferably lift the system of compressor 200 and refrigeration system 300 Cold energy power, it is more efficient.

In one embodiment of the present utility model, as shown in Fig. 2-Fig. 3, interior pipeline section 31 is formed as vertically extending Straight length.Further, the center line of the center line of straight length and liquid storage cylinder 11 overlaps.It is possible thereby to it is more favorable for gaseous refrigerant Agent is uniformly flowed into escape pipe 3 by surrounding.

In one embodiment of the present utility model, compressor 200 includes multiple cylinders 202, for example, can include two, Three or more cylinders 202, thus, accordingly, as shown in Figure 3, including multiple, multiple intervals of escape pipes 3 are set escape pipe 3 In the bottom of shell 1, and the port 311 of the interior pipeline section 31 of each escape pipe 3 is concordant, multiple escape pipes 3 and multiple cylinders 202 1 One is corresponding connected.The wherein capacity L of compressor 200 is the capacity sum of multiple cylinders 202.

Preferably, as shown in Figure 3, circumferentially-spaced distribution of multiple interior pipeline sections 31 along liquid storage cylinder 11.It is possible thereby to more Escape pipe 3 is uniformly flowed into by surrounding beneficial to gaseous refrigerant.

In one embodiment of the present utility model, as shown in Fig. 2-Fig. 3, reservoir 100 also includes filter 4, Filter 4 is in liquid storage cylinder 11 and between air inlet pipe 2 and escape pipe 3.The refrigerant entered in reservoir 100 will It can be discharged into again by escape pipe 3 in the compression chamber of compressor 200 after the filtering of filter 4, it is possible thereby to avoid freezing Impurity in agent enters in compression chamber and damages compressor 200.Thus the reliability of operation of compressor 200 is improved.Alternatively, mistake It can be screen pack to filter device 4, and cost is low, good filtration effect.

According to the compressor 200 of the utility model second aspect embodiment, including according to the above-mentioned first party of the utility model The reservoir 100 of face embodiment, compressor 200 are suitable to use refrigerant R290.Wherein, compressor 200 can be reciprocating pressure Contracting machine 200 or rotary compressor 200 etc..

Specifically, as shown in fig. 1, compressor 200 includes housing, is provided with housing and is used for what refrigerant was compressed Compression assembly, electric machine assembly and reservoir 100 for driving compression assembly to operate.Compression assembly includes at least one cylinder 202。

Such as the rotary compressor 200 shown in Fig. 1, wherein compression assembly include cylinder 202, bent axle 203, piston 204 and slide plate 205, cylinder 202, which has, is axially penetrating through its cylinder-bore, and the axial both ends of cylinder 202 are respectively equipped with base bearing 206 and supplementary bearing 207, cylinder 202, base bearing 206 and supplementary bearing 207 limit compression chamber jointly, and bent axle is enclosed on outside piston 204 On 203 eccentric part and in compression chamber, slide plate 205 is reciprocally located in the groove of slide plate 205 of cylinder 202 and slide plate 205 the inner is often only supported so that compression chamber is separated into suction muffler and discharge chamber, the outlet of reservoir 100 with the outer wall of piston 204 The outer segment 32 of pipe 3 connects with the suction muffler of compression chamber.Electric machine assembly is connected with bent axle 203 to drive bent axle 203 to rotate.

Electric machine assembly includes stator 208 and rotor 209, and motor can be inner rotor motor, or external rotor electric machine, When motor is inner rotor motor, rotor 209 is in stator 208, and when motor is external rotor electric machine, rotor 209 is located at fixed Outside son 208.

As shown in figs. 1-3, housing can include main casing 2011 and at 2011 axial both ends open of main casing Upper shell 2012 and lower house 2013.Alternatively, upper shell 2012, lower house 2013 and main casing 2011 are welded to connect.

It is understood that the operation principle of compressor 200 is prior art, it is not described in detail here.

It is real according to the above-mentioned first aspect of the utility model by setting according to the compressor 200 of the utility model embodiment Apply the reservoir 100 of the compressor 200 of example so that compressor 200 with above-mentioned reservoir 100 with all advantages, here Repeat no more.

According to the refrigeration system 300 of the utility model third aspect embodiment, including according to the utility model above-mentioned second The compressor 200 of aspect embodiment.

Wherein, refrigeration system 300 can be single cooling system or cooling/warming system etc..Such as shown in Fig. 6, refrigeration system 300 For cooling/warming system system, refrigeration system 300 includes four-way reversing valve 304, compressor 200, outdoor heat exchanger 302, throttling arrangement 303 and indoor heat exchanger 301, outdoor heat exchanger 302, throttling arrangement 303 and indoor heat exchanger 301 be sequentially connected, compressor 200 With exhaust outlet, four-way reversing valve 304 has the first valve port 3041, the second valve port 3042, the 3rd valve port 3043 and the 4th valve port 3044, wherein the first valve port 3041 is connected with exhaust outlet, the 3rd valve port 3043 is connected with air inlet pipe 2, the second valve port 3042 and room External heat exchanger 302 is connected, and the 4th valve port 3044 is connected with indoor heat exchanger 301, wherein the first valve port 3041 is selectively with the One in two valve ports 3042 and the 4th valve port 3044 conducting, the 3rd valve port 3043 selectively with the second valve port 3042 and the 4th Another conducting in valve port 3044.When the first valve port 3041 and the second valve port 3042 turn on, the 3rd valve port 3043 and the 4th valve When mouth 3044 turns on, refrigeration system 300 runs refrigeration mode；When the first valve port 3041 and the 4th valve port 3044 turn on, the second valve The valve port 3043 of mouth 3042 and the 3rd turns on, and refrigeration system 300 runs heating mode.

According to the refrigeration system 300 of the utility model embodiment, by setting according to the above-mentioned second aspect of the utility model The compressor 200 of embodiment so that refrigeration system 300 with above-mentioned compressor 200 with all advantages, here no longer Repeat.Wherein, the refrigerant that refrigeration system 300 fills is R290.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that： These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (10)

1. A kind of 1. reservoir of compressor, it is characterised in that including：

   Shell, liquid storage cylinder is limited in the shell；

   Air inlet pipe, the air inlet pipe are located at the top of the shell and connected with the liquid storage cylinder；

   Escape pipe, the escape pipe are located at the bottom of the shell, and the escape pipe includes the inner tube stretched into the liquid storage cylinder Section and the outer segment on the outside of the liquid storage cylinder, said inner tube section and the outer segment communicate with each other, and said inner tube section The liquid storage cylinder is separated into the upper liquid storage cylinder to communicate with each other and lower liquid storage cylinder by the plane where port, wherein, the upper liquid storage Meet following relation between the volume V1 of chamber, the volume V2 of the lower liquid storage cylinder and the compressor capacity L：0.55≤ V2/ (V1+V2)≤0.72 and V2/L >=1.1.
2. 2. the reservoir of compressor according to claim 1, it is characterised in that

   As L≤150cm³During/rev, 0.55≤V2/ (V1+V2)≤0.60；

   Work as 150cm³/ rev ＜ L≤250cm³During/rev, 0.60 ＜ V2/ (V1+V2)≤0.66；

   As L ＞ 250cm³During/rev, 0.66 ＜ V2/ (V1+V2)≤0.72.
3. 3. the reservoir of compressor according to claim 1, it is characterised in that said inner tube section is formed as vertically extending Straight length.
4. 4. the reservoir of compressor according to claim 3, it is characterised in that the center line of the straight length and the storage The center line of sap cavity overlaps.
5. 5. the reservoir of compressor according to claim 1, it is characterised in that the escape pipe includes multiple, Duo Gesuo The bottom that escape pipe interval is located at the shell is stated, and the port of the interior pipeline section of each escape pipe is concordant.
6. 6. the reservoir of compressor according to claim 5, it is characterised in that multiple said inner tube sections are along the liquid storage cylinder Circumferentially-spaced distribution.
7. 7. the reservoir of the compressor according to any one of claim 1-6, it is characterised in that also including filter, The filter is in the liquid storage cylinder and between the air inlet pipe and the escape pipe.
8. 8. a kind of compressor, it is characterised in that including the reservoir according to any one of claim 1-7.
9. 9. a kind of refrigeration system, it is characterised in that including compressor according to claim 8.
10. 10. refrigeration system according to claim 9, it is characterised in that the refrigerant of the refrigeration system filling is R290.