CN105065280B - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
CN105065280B
CN105065280B CN201510524416.8A CN201510524416A CN105065280B CN 105065280 B CN105065280 B CN 105065280B CN 201510524416 A CN201510524416 A CN 201510524416A CN 105065280 B CN105065280 B CN 105065280B
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CN
China
Prior art keywords
cylinder
oil
bearing
oil guide
rotary compressor
Prior art date
Application number
CN201510524416.8A
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Chinese (zh)
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CN105065280A (en
Inventor
冯瑞金
解少轩
廖健生
Original Assignee
广东美芝制冷设备有限公司
安徽美芝精密制造有限公司
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Priority to CN201510524416.8A priority Critical patent/CN105065280B/en
Publication of CN105065280A publication Critical patent/CN105065280A/en
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Abstract

The invention discloses a kind of rotary compressor, described rotary compressor includes:Housing, defines oil sump in described housing;Bent axle, described bent axle is located in described housing, is provided with the oil duct with the conducting of described oil sump in described bent axle, and described bent axle is provided with the oil-out with the conducting of described oil duct, and described bent axle has eccentric part, and described eccentric part is provided with piston;Cylinder, described cylinder is located in described housing, defines cylinder chamber in described cylinder, and described eccentric part is movably located at described cylinder intracavity, is provided with the shoe cream room with the conducting of described oil sump in described cylinder;Bearing, described bearing be located in described housing and with described cylinders, be provided with the Oil Guide passage turning on described oil-out and described shoe cream room in described bearing.Circulating cooling oil circuit through cylinder is had according to the rotary compressor of the present invention, cooling can be realized to cylinder, reduce the temperature sucking gas, improve suction superheat phenomenon, improve inspiration capacity.

Description

Rotary compressor
Technical field
The present invention relates to Compressor Technology field, more particularly, to a kind of rotary compressor.
Background technology
In rotary compressor in the related, the gases at high pressure in main casing body can be directly delivered to by cylinder wall In cylinder, and then transfer heat to the gas of suction, so that suction gas temperature is increased, volume reduces, and causes the air-breathing of cylinder Amount reduces, and getter capacity reduces, thus have impact on the performance of compressor.
Content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this reason, the present invention carries Go out a kind of rotary compressor, the pumping property of described rotary compressor is good.
Rotary compressor according to embodiments of the present invention, including:Housing, defines oil sump in described housing;Bent axle, institute State bent axle to be located in described housing, be provided with described bent axle with described oil sump conducting oil duct, described bent axle be provided with described The oil-out of oil duct conducting, described bent axle has eccentric part, and described eccentric part is provided with piston;Cylinder, described cylinder is located at institute State in housing, in described cylinder, define cylinder chamber, described eccentric part is movably located at described cylinder intracavity, in described cylinder It is provided with the shoe cream room with the conducting of described oil sump;Bearing, described bearing be located in described housing and with described cylinders, described axle It is provided with the Oil Guide passage turning on described oil-out and described shoe cream room in holding.
Rotary compressor according to embodiments of the present invention has the circulating cooling oil circuit through cylinder, can be real to cylinder Now cool down, reduce the temperature sucking gas, improve suction superheat phenomenon, improve the inspiration capacity of compressor, improving performance.
In addition, rotary compressor according to the above embodiment of the present invention can also have the technical characteristic adding as follows:
According to one embodiment of present invention, described bearing includes base bearing and supplementary bearing, described base bearing and supplementary bearing It is respectively provided at the two ends of described cylinder, described Oil Guide passage is located in described base bearing.
According to one embodiment of present invention, define cavity between described piston, described eccentric part and described base bearing, Described cavity turns on described oil-out and described Oil Guide passage.
According to one embodiment of present invention, described Oil Guide passage includes entrance and outlet section and turns on described entrance Section and the main channel of outlet section, described main channel includes the first Oil Guide section and the second Oil Guide section, and described entrance turns on described sky Chamber and described first Oil Guide section, described outlet section turns on described second Oil Guide section and described shoe cream room, described first Oil Guide section Cross-sectional area is less than the cross-sectional area of described second Oil Guide section.
According to one embodiment of present invention, described main channel radially extending along described base bearing, described outlet section and Described entrance is axially extending along described base bearing respectively.
According to one embodiment of present invention, one end away from described first Oil Guide section of described second Oil Guide section extends to The lateral surface of described base bearing, one end of described second Oil Guide section is provided with sealing-plug, described outlet section and described second Oil Guide section Middle part connection.
According to one embodiment of present invention, described shoe cream room is axially extending along described cylinder, and described cylinder is provided with Stream hydraulic fluid port, one end of described stream hydraulic fluid port is connected with described shoe cream room, and the other end of described stream hydraulic fluid port extends to the outer of described cylinder Side.
According to one embodiment of present invention, described shoe cream room along described cylinder axially through described cylinder, described pair Bearing and described cylinders are to close one end away from described base bearing of described shoe cream room.
According to one embodiment of present invention, the cross section of described shoe cream room is formed as circumferentially extending along described cylinder Arc or fold-line-shaped, in the circumference of described cylinder, one end of described stream hydraulic fluid port is connected with the middle part of described shoe cream room.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description
Fig. 1 is the part-structure schematic diagram of rotary compressor according to embodiments of the present invention;
Fig. 2 is the mplifying structure schematic diagram at A in Fig. 1;
Fig. 3 is the top view of the part-structure of rotary compressor according to embodiments of the present invention.
Reference:
Rotary compressor 100;
Housing 10;Oil sump 11;
Bent axle 20;Oil duct 21;Oil-out 22;Annular indentation 23;Eccentric shaft 201;
Cylinder 30;Cylinder chamber 31;Shoe cream room 32;Cavity 33;Stream hydraulic fluid port 34;Vane slot 35;
Bearing 40;Base bearing 401;Supplementary bearing 402;Oil Guide passage 41;Main channel 411;First Oil Guide section 4111;Second leads Oily section 4112;Entrance 412;Outlet section 413;
Piston 50;Sealing-plug 60;Slide plate 70.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings.Below with reference to The embodiment of Description of Drawings is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
Describe compressor according to embodiments of the present invention below in conjunction with the accompanying drawings in detail.
With reference to shown in Fig. 1, compressor according to embodiments of the present invention can include housing 10, bent axle 20, cylinder 30 and axle Hold 40.Oil sump 11 is defined, specifically, housing 10 can vertically extending be arranged, and oil sump 11 can be arranged in housing 10 The bottom of housing 10.Bent axle 20, cylinder 30 and bearing 40 are respectively provided in housing 10, and bearing 40 is connected with cylinder 30, bent axle 20 Can be located on cylinder 30 and bearing 40.Bent axle 20 can have eccentric part 201, defines cylinder chamber 31, partially in cylinder 30 Center portion 201 is movably located in cylinder chamber 31, and piston 50 can be set on eccentric part 201.
It is provided with oil duct 21, bent axle 20 is provided with oil-out 22 in bent axle 20.It is provided with shoe cream room 32, in bearing 40 in cylinder 30 It is provided with Oil Guide passage 41.Wherein, oil duct 21 and oil sump 11 turn on, and oil-out 22 is turned on oil duct 21, and Oil Guide passage 41 turns on out Hydraulic fluid port 22 and shoe cream room 32, shoe cream room 32 is turned on oil sump 11.Thus, circulating cooling oil circuit, oil sump can be formed in housing 10 Oil in 11 can turn again in oil sump 11 after sequentially passing through oil duct 21, oil-out 22, Oil Guide passage 41 and shoe cream room 32, and And next circulation can be proceeded.In the cycle, oil, through cylinder 30, can cool down to cylinder 30, thus having Effect prevents the temperature sucking gas from rising it is ensured that even improving the inspiration capacity of cylinder 30, thus reaching the purpose of improving energy efficiency.
Rotary compressor 100 according to embodiments of the present invention, by arranging shoe cream room 32, and in bearing in cylinder 30 In 40 setting and shoe cream room 32 and oil duct 21 conducting Oil Guide passage 41 so that rotary compressor 100 can have circulate cold But oil circuit, this circulating cooling oil circuit, through cylinder 30, can cool down to cylinder 30, reduces the temperature sucking gas, improves Suction superheat phenomenon, improves the inspiration capacity of compressor, improving performance.
According to some embodiments of the present invention, bearing 40 can include base bearing 401 and supplementary bearing 402, base bearing 401 He Supplementary bearing 402 can be located at the two ends of cylinder 30 respectively, and Oil Guide passage 41 can be located in base bearing 401.For example, as Fig. 1 institute Show, base bearing 401 can be located at the upper end of cylinder 30, supplementary bearing 402 can be located at the lower end of cylinder 30, oil-out 22 can be adjacent Nearly eccentric part 201 is arranged.
Cavity 33 can be defined, cavity 33 can turn on oil-out between piston 50, eccentric part 201 and base bearing 401 22 with Oil Guide passage 41.Oil in oil duct 21 can be flow in cavity 33 by oil-out 22, and is entered by this cavity 33 To in Oil Guide passage 41.Alternatively, one end towards base bearing 401 of eccentric part 201 can be provided with annular indentation 23, cavity 33 can be limited by between annular indentation 23, piston 50 and the lower surface of base bearing 401.
Specifically, annular indentation 23 forms a circle, the wall of annular indentation 23, work along the circumference of eccentric part 201 Cavity 33 is limited between the internal face of plug 50 and the lower surface of base bearing 401.Thus, when rotary compressor 100 is in During running status, eccentric part 201 rotates, and the oil-out 22 of bent axle 20 can be turned on cavity 33 always, meanwhile, this cavity 33 Turn on Oil Guide passage 41 always, so that oil duct 21 and Oil Guide passage 41 can be constantly in the state of conducting, will not be because of song The rotation of axle 20 and interval disconnection occurs, Oil Guide performance is good, and oil can endlessly be flowed into the shoe cream room of cylinder 30 In 32, cylinder 30 is cooled down, cooling performance is good.
As depicted in figs. 1 and 2, annular indentation 23 can be formed as being located at the one of the neighbouring base bearing 401 of eccentric part 201 Annular groove on the outer peripheral face at end.Thus, the not only easily manufactured but also work that do not interfere with bent axle 20.
It is understood that the structure of Oil Guide passage 41 be formed as multiple, alternatively, as depicted in figs. 1 and 2, Oil Guide Passage 41 can include main channel 411, entrance 412 and outlet section 413, main channel 411 conducting entrance 412 and outlet section 413.Main channel 411 can include the first Oil Guide section 4111 and the second Oil Guide section 4112, and entrance 412 turns on cavity 33 and first Oil Guide section 4111, outlet section 413 conducting the second Oil Guide section 4112 and shoe cream room 32, the cross-sectional area of the first Oil Guide section 4111 is less than The cross-sectional area of the second Oil Guide section 4112.Thus, oil can be by successfully flowing to the second Oil Guide section by the first Oil Guide section 4111 4112, flowing is more smooth.
Preferably, main channel 411 can radially extending along base bearing 401, outlet section 413 and entrance 412 edge respectively Base bearing 401 axially extending.That is, base bearing 401 radially extending along cylinder 30, outlet section 413 and entrance 412 Axially extending along cylinder 30.As depicted in figs. 1 and 2, main channel 411 is located in base bearing 401, outlet section 413 and entrance 412 lower surfaces extending respectively to base bearing 401.Thus, it is not only convenient for processing and manufacturing and make oil flowing more smooth.
Alternatively, the cross section of main channel 411 can be formed as circular.In addition, for the ease of processing, the second Oil Guide section 4112 one end away from the first Oil Guide section 4111 can extend to the lateral surface of base bearing 401, and outlet section 413 can be with second The middle part connection of Oil Guide section 4112, one end of the second Oil Guide section 4112 can be provided with sealing-plug 60, to close the second Oil Guide section 4112 one end.
That is, the middle part of the second Oil Guide section 4112 is connected with outlet section 413, the second Oil Guide section 4112 away from first The outside wall surface of base bearing 401 can be run through in one end of Oil Guide section 4111, that is, be formed as opening, can arrange sealing-plug at this opening 60, to block the purpose that this opening reaches sealing Oil Guide path, make the oil in second outlet section 413 can pass through outlet section as far as possible 413 are flowed in shoe cream room 32, realize the cooling to cylinder 30.This kind of structure is more convenient for the processing and manufacturing of base bearing 401 and leading Oiliness can be good.
Referring to figs. 1 to shown in Fig. 3, cylinder 30 being provided with stream hydraulic fluid port 34, one end of stream hydraulic fluid port 34 can be with shoe cream room 32 connections, the other end of stream hydraulic fluid port 34 can extend to the lateral surface of cylinder 30.Thus, the oil in shoe cream room 32 can be by stream Hydraulic fluid port 34 flow between the lateral surface of cylinder 30 and the inner peripheral surface of housing 10, and along this lateral surface or inner peripheral surface downstream to oil In pond 11, oil flowing is smooth, and oil return effect is good.
As shown in Fig. 2 shoe cream room 32 can be along cylinder 30 axially through cylinder 30, to ensure cylinder 30 is had preferably Cooling effect.Wherein, supplementary bearing 402 can be connected with cylinder 30 to close the lower end of shoe cream room 32.That is, supplementary bearing 402 part extends at the shoe cream room 32 of cylinder 30 and seals shoe cream room 32 away from one end of base bearing 401.
Certainly, the structure not limited to this of shoe cream room 32, for example, in other embodiments of the present invention, shoe cream room 32 edge Axially extending, one end insertion cylinder 30 of shoe cream room 32 and being connected with outlet section 413 of cylinder 30, shoe cream room 32 another End not insertion cylinder 30.Thus, need not be sealed using supplementary bearing 402, assembling is more convenient and good airproof performance.
Preferably, outlet section 413 can be coaxially disposed with shoe cream room 32.Thus, oil is easier to be flowed into from outlet section 413 In shoe cream room 32.Wherein, the cross-sectional area of outlet section 413 can be less than the cross-sectional area of the one end open of shoe cream room 32, to protect Card improves the utilization rate of oil from outlet section 413 outflow by can all be flowed in shoe cream room 32.
Preferably, as shown in Fig. 2 stream hydraulic fluid port 34 one end can with shoe cream room 32 one end towards base bearing 401 side Wall is connected.Thus, it is possible to ensure to retain more oil in shoe cream room 32, and the time that oil stockpiles in cylinder 30 is relatively Long, heat exchange more thoroughly, can improve the cooling effect to cylinder 30 further.
As shown in figure 3, the cross section of shoe cream room 32 is formed as the circumferentially extending arc along cylinder 30, in the week of cylinder 30 Upwards, one end of stream hydraulic fluid port 34 can be connected with the middle part of shoe cream room 32.Thus, not only can ensure can have in shoe cream room 32 Have more oil it is ensured that cooling effect to cylinder 30, and can ensure that oil in shoe cream room 32 can more swimmingly from Stream hydraulic fluid port 34 flows out, and Oil Guide is good.
Certainly, the shape not limited to this of shoe cream room 32, for example, in other embodiments of the present invention, shoe cream room 32 Cross section is formed as the circumferentially extending fold-line-shaped along cylinder 30.This fold-line-shaped is appreciated that to be sequentially connected by multiple head and the tail Straight line is formed.For example, this fold-line-shaped can be the polygonal at least a portion centered on the center of cylinder 30, example As, pentagonal several while or when hexagonal several, etc..
Shoe cream room 32 can be configured as needed along the circumferentially extending size of cylinder 30, for example, as shown in figure 3, Cylinder 30 is provided with vane slot 201, and slide plate 70 is movably arranged in vane slot 201, and shoe cream room 32 is spaced apart with vane slot 201 Setting, it is in smaller part circular arc that shoe cream room 32 extends.Certainly, shoe cream room 32 can also extend in more than half circular arc or whole semi arch Shape etc..
It should be noted that cross section described above be from oily flow direction for, for example, referring to Fig. 1 To shown in Fig. 3, for Oil Guide passage 41, the flow direction of oil is horizontally oriented, the therefore first Oil Guide section 4111 and the The cross section of two Oil Guide sections 4112 is respectively vertical cutting plane;For shoe cream room 32, the flow direction of oil is generally vertically Direction, the therefore cross section of shoe cream room 32 are then horizontal plane.
Operationally, bent axle 20 rotates rotary compressor 100 according to embodiments of the present invention, and eccentric part 201 is with work Plug 50 activity in cylinder chamber 31, gas enters in cylinder chamber 31 by air entry, and the lubricating oil in oil sump 11 enters bent axle In 20 oil duct 21, then enter into by piston 50, eccentric part 201 top and base bearing 401 lower surface shape through oil-out 22 In the cavity 33 becoming, then enter in main channel 411 by entrance 412, then flow in shoe cream room 32 from outlet section 413, After stockpiling enough oil in shoe cream room 32, oil can flow out cylinder 30 from stream hydraulic fluid port 34, is back in oil sump 11.
Thus, the shoe cream room 32 of this rotary compressor 100 is not connected with cylinder chamber 31, thus also not interfering with cylinder 30 normal suction operation.Meanwhile, this rotary compressor 100 can form circulating cooling oil circuit, can play reduction cylinder The effect of 30 suction superheat, improves the inspiration capacity of rotary compressor 100, improving product performance.
Other of rotary compressor 100 according to embodiments of the present invention constitute and operate the common skill for this area It is knowable for art personnel, here is not described in detail.
In describing the invention it is to be understood that term " on ", D score, "front", "rear", " vertical ", " level ", The orientation of instruction such as " top ", " bottom ", " interior ", " outward ", " axial ", " radially ", " circumferential " or position relationship are based on shown in accompanying drawing Orientation or position relationship, be for only for ease of description the present invention and simplify description, rather than instruction or hint indication device Or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral;Can be that machinery connects Connect or electrically connect or can communicate each other;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, permissible It is the connection of two element internals or the interaction relationship of two elements, limit unless otherwise clear and definite.For this area For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.
In the description of this specification, reference term " embodiment " or " specific embodiment ", " example ", " specific example " etc. Description mean that specific features with reference to this embodiment or example description, structure, material or feature are contained in the present invention extremely In a few embodiment or example.In this manual, identical is necessarily directed to the schematic representation of above-mentioned term Embodiment or example.And, the specific features of description, structure, material or feature can in any one or more embodiments or Combine in an appropriate manner in example.Additionally, in the case of not conflicting, this can be illustrated by those skilled in the art The feature of the different embodiments described in book or example and different embodiment or example is combined and combines.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (10)

1. a kind of rotary compressor is it is characterised in that include:
Housing, defines oil sump in described housing;
Bent axle, described bent axle is located in described housing, is provided with the oil duct with the conducting of described oil sump, on described bent axle in described bent axle It is provided with the oil-out with the conducting of described oil duct, described bent axle has eccentric part, and described eccentric part is provided with piston;
Cylinder, described cylinder is located in described housing, defines cylinder chamber in described cylinder, and described eccentric part is movably located at Described cylinder intracavity, is provided with the shoe cream room with the conducting of described oil sump in described cylinder;
Bearing, described bearing be located in described housing and with described cylinders, be provided with the described oil-out of conducting in described bearing Oil Guide passage with described shoe cream room.
2. rotary compressor according to claim 1 is it is characterised in that described bearing includes base bearing and supplementary bearing, Described base bearing and supplementary bearing are respectively provided at the two ends of described cylinder, and described Oil Guide passage is located in described base bearing.
3. rotary compressor according to claim 2 is it is characterised in that described piston, described eccentric part and described master Cavity is defined, described cavity turns on described oil-out and described Oil Guide passage between bearing.
4. rotary compressor according to claim 3 is it is characterised in that described Oil Guide passage includes entrance and outlet Section and the main channel turning on described entrance and outlet section, described main channel includes the first Oil Guide section and the second Oil Guide section, institute State entrance and turn on described cavity and described first Oil Guide section, described outlet section turns on described second Oil Guide section and described oil storage Chamber, the cross-sectional area of described first Oil Guide section is less than the cross-sectional area of described second Oil Guide section.
5. rotary compressor according to claim 4 it is characterised in that described main channel along described base bearing radial direction Extend, described outlet section and described entrance are axially extending along described base bearing respectively.
6. rotary compressor according to claim 5 it is characterised in that described second Oil Guide section away from described first One end of Oil Guide section extends to the lateral surface of described base bearing, and one end of described second Oil Guide section is provided with sealing-plug, described outlet Section is connected with the middle part of described second Oil Guide section.
7. rotary compressor according to claim 5 is it is characterised in that described shoe cream room prolongs along the axial direction of described cylinder Stretch, described cylinder is provided with stream hydraulic fluid port, one end of described stream hydraulic fluid port is connected with described shoe cream room, the other end of described stream hydraulic fluid port prolongs Extend the lateral surface of described cylinder.
8. rotary compressor according to claim 7 is it is characterised in that described shoe cream room passes through along the axial direction of described cylinder Lead to described cylinder, described supplementary bearing and described cylinders are to close one end away from described base bearing of described shoe cream room.
9. rotary compressor according to claim 7 is it is characterised in that described outlet section is coaxially set with described shoe cream room Put.
10. rotary compressor according to claim 7 is it is characterised in that the cross section of described shoe cream room is formed as edge The circumferentially extending arc of described cylinder or fold-line-shaped, in the circumference of described cylinder, one end and the described storage of described stream hydraulic fluid port The middle part connection of oil pocket.
CN201510524416.8A 2015-08-24 2015-08-24 Rotary compressor CN105065280B (en)

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CN105065280B true CN105065280B (en) 2017-03-08

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101403385B (en) * 2008-10-25 2011-09-28 广东美芝制冷设备有限公司 Lubrication system of horizontal rotary compressor, its control method and application
CN101463820B (en) * 2008-12-31 2011-01-19 广东美芝制冷设备有限公司 Horizontal rotary compressor
CN102192154B (en) * 2010-03-18 2013-05-08 广东美芝制冷设备有限公司 Rotary compressor
CN103775343B (en) * 2014-01-20 2016-04-20 广东美芝制冷设备有限公司 Horizontal compressor
CN203948306U (en) * 2014-07-16 2014-11-19 珠海凌达压缩机有限公司 A kind of compressor and comprise the refrigeration system of this compressor
CN204312350U (en) * 2014-12-09 2015-05-06 广东美芝制冷设备有限公司 Rotary compressor
CN204941962U (en) * 2015-08-24 2016-01-06 广东美芝制冷设备有限公司 Rotary compressor

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