CN1837619A - Hermetic rotary compressor - Google Patents
Hermetic rotary compressor Download PDFInfo
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- CN1837619A CN1837619A CN 200610066137 CN200610066137A CN1837619A CN 1837619 A CN1837619 A CN 1837619A CN 200610066137 CN200610066137 CN 200610066137 CN 200610066137 A CN200610066137 A CN 200610066137A CN 1837619 A CN1837619 A CN 1837619A
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Abstract
A hermetic rotary compressor operates two cylinders simultaneously in the regular operation; however it halts operating one of the cylinders when it selects an operation with a half capacity. A vane room of the halted cylinder is air-tightly sealed with respect to lubricant atmosphere in a hermetic case. An oil-supplying groove is provided to a vane groove of the halted cylinder, and lubricant is supplied to the oil-supplying groove in order to lubricate the vane.
Description
Technical field
The present invention relates to particularly can change the compressor of air-conditioning ability or refrigerating capacity at the hermetic rotary compressor that can in air conditioner or freezer, use.
Background technique
Usually in hermetic rotary compressor,, in the airtight housing atmosphere of high pressure because compressed cold media air is sent in the airtight housing.In the cylinder of compressor, hold the piston that constitutes by eccentric wheel.The front end of blade contacts with the surface pressure of piston with spring compression.
Cylinder is divided into the suction space and discharges the space by blade.Sucking space connection suction pipe, discharge the space opening in closed shell.
The flat 1-247786 communique of Japanese Patent Application Laid-Open discloses a kind of hermetic rotary compressor, and this compressor has two cylinders, can use simultaneously by two cylinders, and changes air-conditioning ability or refrigerating capacity by the compression that stops a cylinder.Stop compression by making blade leave piston.
Though this compressor function excellence in order to force to make the blade of first cylinder keep separating with piston, be provided with airtight vane room in the behind of blade.Vane room is in the lubricant atmosphere that is connected with the inside of compressor usually, supply with enough lubricant oil to sliding parts, but the disclosed compressor of above-mentioned patent does not make vane room and compressor internal communication, has formed so-called confined chamber.Therefore, can not supply with enough lubricant oil, produce danger such as the abrasion of blade sliding parts, ablation to the sliding parts of blade.
Summary of the invention
Hermetic rotary compressor of the present invention has first cylinder and second cylinder.Common two cylinders turn round simultaneously, when operation mode that the selection ability reduces by half, are separated by blade and the piston that makes second cylinder, and compression is stopped.For blade can be separated with piston, the vane room of second cylinder is sealed in the interior atmosphere of closed shell.In the present invention, in the blade groove of second cylinder, be provided with the oil supply that is used for to the blade supplying lubricating oil, so that both just also can supply with enough lubricant oil with vane room is airtight to blade.
Description of drawings
Fig. 1 is the freeze cycle structural drawing of embodiment of the present invention 1.
Fig. 2 is first cylinder of same mode of execution and the decomposition assembling figure of second cylinder.
Fig. 3 is second cylinder, the dividing plate of same mode of execution, the decomposition assembling figure of bearing bracket.
Fig. 4 is second cylinder, the dividing plate of same mode of execution, the sectional view of bearing bracket.
Fig. 5 is the structural drawing of same freeze cycle.
Fig. 6 is the compressor section sectional view of embodiment of the present invention 2.
Fig. 7 is the compressor section sectional view of embodiment of the present invention 3.
Fig. 8 is the oblique drawing of the bearing bracket of embodiment of the present invention 4.
Fig. 9 is the oblique drawing of the dividing plate of embodiment of the present invention 5.
Figure 10 is the compressor section sectional view of embodiment of the present invention 7.
Figure 11 is the dividing plate sectional view of embodiment of the present invention 8.
Figure 12 is the freeze cycle structural drawing of embodiment of the present invention 9.
Figure 13 is the freeze cycle structural drawing that the part with Figure 12 is changed.
Figure 14 is the freeze cycle structural drawing of embodiment of the present invention 10.
Embodiment
Below based on the description of drawings embodiments of the present invention.
Mode of execution 1
Fig. 1 is the freeze cycle structural drawing of embodiment of the present invention 1.Hermetic rotary compressor 100 in closed shell 1, is connected compressor section 2 by rotating shaft 4 with motor 3.Motor 3 has stator 5 and rotor 6.Compressor section 2 has respectively at first cylinder 8a and the second cylinder 8b of dividing plate about in the of 7.On the first cylinder 8a, rigid bearing support 9 and valve cover 10a.Below the second cylinder 8b, fixing bearing bracket 11 and valve cover 10b.
As shown in FIG. 2, in each cylinder 8a, 8b, be provided with the 13a of cylinder chamber, 13b, blade groove 14a, 14b and vane room 15a, 15b.Blade 16a, 16b are contained among each blade groove 14a, 14b, and can freely slide.In vane room 15a, hold spring members 17.Spring members 17 is pushed down the rear end of blade 16a, and the front end of blade 16a is contacted on eccentric wheel 12a with pressure.The front end of each blade 16a, 16b forms semicircle shape, is line with the surface of eccentric wheel 12a, 12b and contacts.
Because the atmosphere split shed of vane room 15a in closed shell, so the rear end of blade 16a is subjected to the high pressure in the closed shell 1.On the other hand, vane room 15b is airtight with respect to the atmosphere of closed shell 1, forms independently confined space.
As shown in FIG. 3, on the second cylinder 8b and below, be fixed with dividing plate 7 and bearing bracket 11 respectively.Can make the top and bottom surface of blade groove 14b and vane room 15b airtight thus.
Because the lubricant atmosphere split shed of vane room 15a in closed shell 1 of the first cylinder 8a, so supply with enough lubricant oil to blade 16a.But,,, produce the problem of blade 16b lack of lubrication sometimes so can not supply with enough lubricant oil to blade 16b because the vane room 15b of the second cylinder 8b is sealed.For head it off, in blade groove 14b, be provided with in the oil supply 19, on second bearing bracket 11, also be provided with the oily port hole 20 (with reference to Fig. 4) of lubricant atmosphere split shed in closed shell 1.Lubricant oil supplies to via oily port hole 20 and makes blade 16b lubricated in the oil supply 19.
As shown in FIG. 4, the space of vane room 15b is connected to the pressure COMM communication (with reference to Fig. 1) of closed shell 1 outside by pressure ingress pipe 18.
The blade 16b that dots, the pressure in front end is subjected to the 13b of cylinder chamber, the pressure that the ingress pipe 18 that is under pressure in the rear end imports.Consequently, blade 16b is promoted by the pressure reduction of front-end and back-end, and the direction low towards pressure moves.
Fig. 5 is the freeze cycle illustraton of model of present embodiment.In the upper end of closed shell 1, connect discharge tube 21.Discharge tube 21 is connected gas holder 25 via flokcculator 22, expansion mechanism 23 and vaporizer 24.Connecting suction pipe 26a, the 26b that leads to compressor in the bottom of gas holder 25. Suction pipe 26a, 26b import the 13a of cylinder chamber, 13b by closed shell 1 respectively.
Between discharge tube 21 and pressure ingress pipe 18, be provided with head pressure pipe 27, on head pressure pipe 27, be provided with switch valve 29.Between suction pipe 26b and pressure ingress pipe 18, be provided with suction pressure pipe 28, on suction pressure pipe 28, be provided with switch valve 30.Pressure ingress pipe 18 imports the vane room 15b of the second cylinder 8b.Above-mentioned head pressure pipe 27, suction pressure pipe 28, switch valve 29 and 30 constitute the pressure COMM communication that imports suction pressure (low pressure) or head pressure (high pressure) in vane room 15b.Switch valve the 29, the 30th is according to from the electrical signal of control section 31 and the solenoid valve of switch.Switch valve 29,30 constitutes the pressure COMM communication.
The following describes the running of carrying out according to the freeze cycle of Fig. 5.
The situation of (1) the normal operation of selection (all-round power operation)
In the first cylinder 8a, the front end of blade 16a is promoted by spring 17, contacts with eccentric wheel 12a pressure, will be divided into two chambers of suction chamber and pressing chamber in the 13a of cylinder chamber.
Utilize the rotation of eccentric wheel 12a,, be discharged in the closed shell 1 compressing refrigerant gas in the 13a of cylinder chamber.So make the first cylinder 8a carry out compression.Be filled in closed shell 1 interior pressurized gas are discharged to closed shell 1 by discharge tube 21 outside.
Because switch valve 29 is opened, high pressure refrigerant gas is imported the vane room 15b of the second cylinder 8b from discharge tube 27.On the other hand, the 13b of cylinder chamber is subjected to the suction pressure (low pressure) from gas holder 25.Because blade 16b front end is subjected to low pressure, the rear end is subjected to high pressure, so front end contacts with eccentric wheel 12b pressure, makes the 13b of cylinder chamber carry out compression.So utilize the all-round power operation of the first cylinder 8a and the second cylinder 8b.
(2) select the situation of special operation (operation of half ability)
In addition, the vane room 15b of the second cylinder 8b is subjected to suction pressure (low pressure) from gas holder 25 via suction pressure pipe 28.The 13b of cylinder chamber also is subjected to the suction pressure (low pressure) from gas holder 25 simultaneously.
Because the front-end and back-end of blade 16b are subjected to low pressure simultaneously, do not produce the power that blade 16b is moved.But, because the rotation of the eccentric wheel 12b in the 13b of cylinder chamber so blade 16b is pressed among the vane room 15b, is in the state that is separated with eccentric wheel 12b.Make the second cylinder 8b not carry out compression thus.The running thereby the ability of only utilizing the first cylinder 8a reduces by half.
In hermetic rotary compressor of the present invention, because the oil supply 19 in being arranged on blade groove 14b is supplied with enough lubricant oil, blade 16b can not wear and tear because of lack of lubrication.And owing to oil supply 19 is arranged among the blade groove 14b, and hold blade 16b at oil supply 14b place, therefore, oil supply 19 can not damage the seal of vane room 15b.
Mode of execution 2
In Fig. 6, demonstrate embodiments of the present invention 2.At the oily port hole 32 that is provided with the lubricant atmosphere split shed in closed shell 1 on the dividing plate 7.Lubricant oil supplies in the oil supply 19 via the oily port hole 32 of dividing plate 7.
Mode of execution 3
In Fig. 7, demonstrate embodiments of the present invention 3.On dividing plate 7 and bearing bracket 11, be respectively equipped with the oily port hole 32,20 of the lubricant atmosphere split shed in closed shell 1.Lubricant oil supplies in the oil supply 19 via the oily port hole 32 of dividing plate 7 and the oily port hole 20 of bearing bracket 11.
Mode of execution 4
In Fig. 8, demonstrate the bearing bracket 11 of embodiment of the present invention 4.At the oily channel slot 33 that is provided with lubricant atmosphere split shed in closed shell 1 on the bearing bracket 11.Lubricant oil supplies in oil supply 19 (not shown) via the oily channel slot 33 of the most common bearing 11.
Mode of execution 5
In Fig. 9, demonstrate the dividing plate 7 of embodiment of the present invention 5.At the oily channel slot 34 that is provided with lubricant atmosphere split shed in closed shell 1 on the dividing plate 7.Lubricant oil supplies in oil supply 19 (not shown) via the oily channel slot 34 on the dividing plate 7.
Mode of execution 6
In Fig. 8, Fig. 9, demonstrate the bearing bracket 11 and the dividing plate 7 of embodiment of the present invention 6.On bearing bracket 11 and dividing plate 7, be respectively equipped with the oily channel slot 33,34 of lubricant atmosphere split shed in closed shell 1.Lubricant oil supplies in oil supply 19 (not shown) via the oily channel slot 33 of bearing bracket 11 and the oily channel slot 34 of dividing plate 7.
Mode of execution 7
In Figure 10, demonstrate embodiments of the present invention 7.Two eccentric part in rotating shaft 4
The centre of (the first and second eccentric wheel 12a, 12b) is provided with oily port hole 36 and the through hole 37 that runs through in the rotating shaft 4 in the radial direction upper shed.The lubricant oil that utilizes centrifugal force will upwards be sucked through hole 37 by the lower end of rotating shaft 4 penetrates from oily port hole 36.
On dividing plate 7, be provided with in the face of rotating shaft 4 the oily port hole 35 of opening.The lubricant oil that penetrates from oily port hole 36 supplies in the oil supply 19 via the oily port hole 35 of dividing plate 7.And at the oily port hole 20 that is provided with the atmosphere split shed in closed shell 1 on the bearing bracket 11.
That is, rotating shaft 4 has an oily port hole 36, and these oil port hole 36 1 ends are at the lower end surface of rotating shaft 4 opening, the other end at the first and second eccentric wheel median surfaces to dividing plate 7 openings.
Dividing plate 7 has an oily port hole 35, and these oil port hole 35 1 end faces are facing to oil supply 19 openings, and the other end is then facing to rotating shaft 4 openings.
Because present embodiment is to make lubrication oil circulation by centrifugal force, so can carry out the lubricated of high reliability.
Mode of execution 8
In Figure 11, show embodiments of the present invention 8.By radially through hole 38, vertically hole 39 and pad 40 constitute the oily port hole 35 (Figure 10) of dividing plate 7, make oily port hole be easy to processing.
Mode of execution 9
The freeze cycle of Figure 12 is represented embodiments of the present invention 9.First switch valve 29 is connected between head pressure (high pressure) and the vane room 15b, second switch valve 30 is connected between head pressure (high pressure) and the 13b of cylinder chamber, the 3rd switch valve 42 is connected between suction pressure (low pressure) and the vane room 15b, and the 4th switch valve 43 then is connected between suction pressure (low pressure) and the 13b of cylinder chamber.
Above-mentioned switch valve 29,30,42,43 all is according to the solenoid valve that carries out switch from the electrical signal of control section 31, and switch valve 29,30,42 and 43 constitutes the pressure COMM communication.
The following describes the operation of being undertaken by the freeze cycle of Figure 12.
The situation of (1) the normal operation of selection (all-round power operation)
The first cylinder 8a carries out the compression identical with mode of execution 1.The pressurized gas that are filled in the closed shell 1 are discharged to outside the closed shell 1 by discharge tube 21.
Because switch valve 29 is opened, make head pressure (high pressure) import the vane room 15b of the second cylinder 8b from head pressure pipe 27.And, make the 13b of cylinder chamber be subjected to suction pressure (low pressure) from gas holder 25 because the 4th switch valve 43 is opened.
The rear end is subjected to high pressure because blade 16b front end is subjected to low pressure, makes its front end contact with eccentric wheel 12b pressure, and the 13b of cylinder chamber carries out compression.Thereby utilize the all-round power running of the first cylinder 8a and the second cylinder 8b.
(2) select the situation of special operation (ability reduce by half operation)
Because switch valve 42 is opened, so the vane room 15b of the second cylinder 8b is subjected to suction pressure (low pressure) by pressure ingress pipe 18.And because switch valve 30 is opened, the 13b of cylinder chamber is subjected to head pressure (high pressure).Because blade 16b front end is subjected to high pressure, the rear end is subjected to low pressure, so be forced to take among the vane room 15b, makes the second cylinder 8b not carry out compression thus.Thereby the operation that the ability of only utilizing the first cylinder 8a reduces by half.
Present embodiment, owing to utilize head pressure to force among the blade 16b income vane room 15b, so can run well and switch between the running especially reliably.
The 4th switch valve also can change check valve 44 into as shown in Figure 13.In the case, switch valve 29,30,42 and check valve 44 constitute the pressure COMM communication.
Mode of execution 10
The freeze cycle of Figure 14 is represented embodiments of the present invention 10.
Go up at four-way switching valve 45 (below be called valve 45) and to connect high-voltage tube 46, low-voltage tube 47, first conduit 48 and second conduit 49.Valve 45 has and is used for the coil (not shown) of switch valve.Valve 45 constitutes the pressure COMM communication.
Do not have at coil under the situation of conducting, high-voltage tube 46, low-voltage tube 47 connect first conduit 48 and second conduit 49 respectively, and under the situation of coil conducting, high-voltage tube 46 is connected second conduit 49 and first conduit 48 respectively with 47 of low-voltage tubes.
The following describes the operation that the freeze cycle of utilizing Figure 14 is carried out.
The situation of (1) the normal operation of selection (all-round power operation)
The first cylinder 8a carries out the compression identical with mode of execution 1.Be filled in closed shell 1 interior pressurized gas are discharged to closed shell 1 by discharge tube 21 outside.
(2) select the special situation of moving (operation of half ability)
The first cylinder 8a carries out and top identical compression.Be filled in closed shell 1 interior pressurized gas are discharged to closed shell 1 by discharge tube 21 outside.
As above switch, in the present embodiment, pressure COMM communication (valve 45) has, make the high voltage terminal of freeze cycle, under the situation of the not conducting of coil that is used for the valve switching, be connected with the 13b of cylinder chamber of the second cylinder 8b, under the situation of coil conducting, first switching valve that is connected with vane room 15b; And the low voltage terminal that makes freeze cycle, under the situation of not conducting of coil, 15b is connected with vane room, under the situation of coil conducting, and second switching valve that is connected with the 13b of cylinder chamber.
Mode of execution 11
When the cylinder volume of the first cylinder 8a and the second cylinder 8b not simultaneously, make the capacity variation scope of normal operation and special operation wideer.
Mode of execution 12
In recent years, in order to protect ozonosphere, developed not chloride HFC (fluorine hydrocarbon) refrigerant.Hermetic rotary compressor of the present invention can use hfc refrigerant.
Mode of execution 13
In order to prevent global warming, natural refrigerants such as carbon dioxide, helium, ammonia have been developed in recent years.Hermetic rotary compressor of the present invention can use the nature refrigerant.
Claims (14)
1. hermetic rotary compressor is characterized in that: this compressor comprises,
Closed shell;
Has first and second eccentric rotating shaft;
Hold described first eccentric first cylinder;
Hold described second eccentric second cylinder, described second cylinder has, blade groove that blade, the described blade of maintenance can slide and the vane room of holding described blade rear end;
Dividing plate between described first and second cylinders, described dividing plate make the top airtight of described blade groove and described vane room;
Make the airtight bearing bracket of described blade groove and described vane room bottom surface; And,
Supply with in the high pressure of freeze cycle and the low pressure either party pressure COMM communication to described vane room; Wherein,
In described blade groove, be provided with the oil supply that is used for to described blade supplying lubricating oil.
2. hermetic rotary compressor as claimed in claim 1 is characterized in that:
Described bearing bracket has, and an end face is to described oil supply opening, and the other end is to the oily port hole of the space opening in the described closed shell.
3. hermetic rotary compressor as claimed in claim 1 is characterized in that:
Described dividing plate has, and an end face is to described oil supply opening, and the other end is to the oily port hole of the space opening in the described closed shell.
4. hermetic rotary compressor as claimed in claim 1 is characterized in that:
Described bearing bracket has, and an end face is to described oil supply opening, and the other end is to the oily port hole of the space opening in the described closed shell;
Described dividing plate has, and an end face is to described oil supply opening, and the other end is to the oily port hole of the space opening in the described closed shell.
5. hermetic rotary compressor as claimed in claim 1 is characterized in that:
Described bearing bracket has, and an end face is to described oil supply opening, and the other end is to the oily channel slot of the space opening in the described closed shell.
6. the hermetic rotary compressor described in claim 1 is characterized in that:
Described dividing plate has, and an end face is to described oil supply opening, and the other end is to the oily channel slot of the space opening in the described closed shell.
7. hermetic rotary compressor as claimed in claim 1 is characterized in that:
Described rotating shaft has, and an end face is to the lower end surface opening of described rotating shaft, the other end described first and second eccentric between facing to the oily port hole of described dividing plate opening;
Described bearing bracket has, and an end face is to described oil supply opening, and the other end is to the oily port hole of the space opening in the described closed shell;
Described dividing plate has, and an end face is to described oil supply opening, and the other end is to the oily port hole of described rotation shaft opening.
8. hermetic rotary compressor as claimed in claim 7 is characterized in that,
Described dividing plate has: interior edge face is to the through hole radially of described rotation shaft opening; Vertical hole by described through hole branch in the face of described oil supply opening; With from the point of branching in the above vertical hole of described through hole pad with the outer peripheral portion locking.
9. hermetic rotary compressor as claimed in claim 1 is characterized in that,
Described pressure COMM communication has:
Be connected the high voltage terminal of freeze cycle and first switch valve between the described vane room;
Be connected the second switch valve between the cylinder chamber of the high voltage terminal of freeze cycle and described second cylinder;
Be connected the low voltage terminal of freeze cycle and the 3rd switch valve between the described vane room; And
Be connected the low voltage terminal of freeze cycle and the 4th switch valve between the described cylinder chamber.
10. hermetic rotary compressor as claimed in claim 9 is characterized in that: described the 4th switch valve is a check valve.
11. hermetic rotary compressor as claimed in claim 1 is characterized in that,
Described pressure COMM communication has:
Make the high voltage terminal of freeze cycle, under the situation of the not conducting of coil that is used for the valve switching, be connected with the cylinder chamber of second cylinder, under the situation of described coil conducting, first switching valve that is connected with described vane room; And
Make the low voltage terminal of freeze cycle, under the situation of not conducting of described coil, be connected with described vane room, under the situation of described coil conducting, second switching valve that is connected with described cylinder chamber.
12. hermetic rotary compressor as claimed in claim 1 is characterized in that: the cylinder chamber of described first cylinder is different with the cylinder volume of the cylinder chamber of described second cylinder.
13. hermetic rotary compressor as claimed in claim 1 is characterized in that: described hermetic rotary compressor uses HFC (Hydro-Fluoro-Carbon) refrigerant.
14. hermetic rotary compressor as claimed in claim 1 is characterized in that: described hermetic rotary compressor uses the nature refrigerant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005085492 | 2005-03-24 | ||
| JP2005085492 | 2005-03-24 | ||
| JP2005345669 | 2005-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1837619A true CN1837619A (en) | 2006-09-27 |
| CN100404867C CN100404867C (en) | 2008-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100661372A Expired - Fee Related CN100404867C (en) | 2005-03-24 | 2006-03-24 | Hermetic rotary compressor |
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| Country | Link |
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| CN (1) | CN100404867C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527489A (en) * | 2013-07-23 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary type compressor and refrigeration circulating device with same |
| CN109154296A (en) * | 2016-07-19 | 2019-01-04 | 日立江森自控空调有限公司 | Closed rotating compressor and refrigerating air-conditioning |
| US10254013B2 (en) | 2014-03-03 | 2019-04-09 | Guangdong Meizhi Compressor Co., Ltd. | Two-stage rotary compressor and refrigeration cycle device having same |
| CN112128103A (en) * | 2020-08-24 | 2020-12-25 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration cycle system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022325B (en) * | 2009-09-11 | 2012-10-24 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating device with same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586876A (en) * | 1995-11-03 | 1996-12-24 | Carrier Corporation | Rotary compressor having oil pumped through a vertical drive shaft |
| JPH1047285A (en) * | 1996-07-26 | 1998-02-17 | Matsushita Electric Ind Co Ltd | Two-cylinder rotary compressor |
| JP2002005062A (en) * | 2000-06-19 | 2002-01-09 | Sanyo Electric Co Ltd | Rotary compressor and refrigerating unit having the same |
| JP2003206879A (en) * | 2002-01-17 | 2003-07-25 | Sanyo Electric Co Ltd | Rotary compressor |
| JP2003269352A (en) * | 2002-03-18 | 2003-09-25 | Sanyo Electric Co Ltd | Rotary compressor |
| CN2570500Y (en) * | 2002-04-29 | 2003-09-03 | 上海日立电器有限公司 | Rotary compressor cylinder having leaf trap with lubricating oil aperture |
| JP4447859B2 (en) * | 2003-06-20 | 2010-04-07 | 東芝キヤリア株式会社 | Rotary hermetic compressor and refrigeration cycle apparatus |
| JP4247077B2 (en) * | 2003-09-02 | 2009-04-02 | 東芝キヤリア株式会社 | Air conditioner |
-
2006
- 2006-03-24 CN CNB2006100661372A patent/CN100404867C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527489A (en) * | 2013-07-23 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary type compressor and refrigeration circulating device with same |
| CN103527489B (en) * | 2013-07-23 | 2017-03-22 | 广东美芝制冷设备有限公司 | Rotary type compressor and refrigeration circulating device with same |
| US10254013B2 (en) | 2014-03-03 | 2019-04-09 | Guangdong Meizhi Compressor Co., Ltd. | Two-stage rotary compressor and refrigeration cycle device having same |
| CN109154296A (en) * | 2016-07-19 | 2019-01-04 | 日立江森自控空调有限公司 | Closed rotating compressor and refrigerating air-conditioning |
| CN109154296B (en) * | 2016-07-19 | 2020-09-01 | 日立江森自控空调有限公司 | Hermetic rotary compressor and refrigerating and air-conditioning apparatus |
| CN112128103A (en) * | 2020-08-24 | 2020-12-25 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration cycle system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100404867C (en) | 2008-07-23 |
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Granted publication date: 20080723 Termination date: 20110324 |