CN100404866C - Variable capacity rotary compressor - Google Patents
Variable capacity rotary compressor Download PDFInfo
- Publication number
- CN100404866C CN100404866C CNB2005101279304A CN200510127930A CN100404866C CN 100404866 C CN100404866 C CN 100404866C CN B2005101279304 A CNB2005101279304 A CN B2005101279304A CN 200510127930 A CN200510127930 A CN 200510127930A CN 100404866 C CN100404866 C CN 100404866C
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- China
- Prior art keywords
- blade
- roller
- pressing chamber
- rotary compressor
- capacity variable
- 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.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
- F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a variable capacity rotary compressor capable of preventing severely wearing of a roller exterior surface. The variable capacity rotary compressor comprises crusts of a first and second compressing chambers which are divided by each other; a first and second rollers arranged respectively inside the first and second compressing chambers; a first vane for setting off the first compressing chamber according to a radial advancing and retreating of the first roller; a second and third vanes slidely supported with each other for setting off the second compressing chamber according to a radial advancing and retreating of the second roller; a vane controller for restricting or releasing the third vane and for controlling the compressing volume; wherein the second vane comprises an extension part extended for covering a front end of the third vane.
Description
Technical field
The present invention relates to a kind of capacity variable rotary compressor, relate in particular to a kind of capacity variable rotary compressor that can change compression volume by the advance and retreat action of control blade.
Background technique
Korea Spro Country publication communique " 10-2004-0021140 number " has disclosed a kind of a kind of capacity variable rotary compressor that can change compression volume by the advance and retreat action of control blade.This rotary compressor comprises the roller of the shell that forms the cylinder type pressing chamber, eccentric rotation in the pressing chamber of shell, according to the radially blade of advance and retreat of roller.Blade is made of first blade on the top that is separated from each other and second blade of bottom, and first blade-side is provided for retraining the constraint element of first blade as required, so that first blade and roller outer surface are separated from each other.This rotary compressor dallies when the constraint of the restrained unit of first blade, and compresses when the constraint of the not restrained unit of first blade.Therefore, as required by first blade being retrained or constraint relief comes to change compression volume.
But this rotary compressor is owing to be separated into first blade and second blade with the contacted blade of roller, thereby the roller outer surface that contacts first blade and the critical portion of second blade when long-time use may produce heavy wear.
Summary of the invention
The present invention proposes in order to solve aforesaid problem, and its purpose is to provide a kind of roller outer surface that can prevent by the capacity variable rotary compressor of heavy wear.
According to capacity variable rotary compressor provided by the present invention, it is characterized in that comprising: shell to achieve these goals with first and second pressing chamber of being divided mutually; Be separately positioned on first and second roller in described first and second pressing chamber; The time divide first blade of described first pressing chamber according to the radially advance and retreat of described first roller; The time divide second blade and the 3rd blade described second pressing chamber, that can slide mutually and support according to the radially advance and retreat of described second roller; And compression volume retrains described the 3rd blade or the blade control gear of constraint relief in order to control; Wherein, described second blade comprises the extending portion that prolongs up or down from its front end, be used to cover described the 3rd blade front end.
The outer surface of described second roller of preceding end in contact of described second blade, and have width up and down corresponding to the described second roller height.
Described three-vaned front end is close to the rear end of described extending portion, and has the width up and down corresponding to described extending portion rear end.
Described blade control gear comprises: the cylinder that is arranged on the described shell of described the 3rd blade-side; Can advance and retreat and be arranged in the described cylinder and the piston that is connected with described the 3rd blade; The first passage that is connected with described cylinder internal; Connect described compressor and discharge the second channel of side and described first passage; The third channel that connects described compressor suction side and described first passage; And, be arranged on the changeable channel valve that described first, second, third passage interconnects the place.
Described three-vaned width is less than the width of described second blade.
And,, it is characterized in that comprising: shell with pressing chamber according to capacity variable rotary compressor provided by the present invention; Be arranged on the roller in the described pressing chamber; The time divide first blade and second blade described pressing chamber, that can slide mutually and support according to the radially advance and retreat of described roller; And, described second blade is carried out the blade control gear of constraint or constraint relief in order to control compression volume; Wherein, described first blade comprises the extending portion that prolongs up or down from its front end, be used to cover the described second blade front end.
Description of drawings
The sectional view of the capacity variable rotary compressor structure that Fig. 1 is provided as the foundation first embodiment of the invention represents that second pressing chamber is carrying out the view of compressed action;
Fig. 2 is the sectional view according to II-II ' line of Fig. 1;
Fig. 3 is the sectional view according to III-III ' line of Fig. 1;
The sectional view of the capacity variable rotary compressor structure that Fig. 4 is provided as the foundation first embodiment of the invention is represented the view that second pressing chamber is dallying;
Second blade and the three-vaned structural representation of the capacity variable rotary compressor that Fig. 5 is provided for the foundation first embodiment of the invention;
The sectional view of the capacity variable rotary compressor structure that Fig. 6 is provided for the foundation second embodiment of the invention.
Main symbol description: 10 is seal container, and 20 is motor drive mechanism, and 21 are rotating shaft, 30 is compressing mechanism, and 31 is first pressing chamber, and 32 is second pressing chamber, 42 is first roller, and 43 is first blade, and 52 is second roller, 53 is second blade, and 53a is an extending portion, and 54 is the 3rd blade, 70 is the blade control gear, 71 is cylinder, and 72 is piston, and 76 is the changeable channel valve.
Embodiment
Below, describe in detail according to preferred embodiment provided by the present invention with reference to accompanying drawing.
Fig. 1 to Fig. 5 is provided by the capacity variable rotary compressor that provides according to first embodiment of the invention.First embodiment's capacity variable rotary compressor comprises the motor drive mechanism 20 that is arranged at seal container 10 inside upper part, is arranged at seal container 10 lower inside and is connected in the compressing mechanism 30 of motor drive mechanism 20 by rotating shaft 21 as shown in Figure 1.
As shown in Figure 1 to Figure 3, compressing mechanism 30 comprises shell with first pressing chamber 31 divided mutually and second pressing chamber 32, is arranged at first and second compression set 40,50 of first and second pressing chamber 31,32 for pressurized gas respectively.
Shell comprises: top first main body 33 that forms cylinder type first pressing chamber 31; Form cylinder type second pressing chamber 32 and be arranged at second main body 34 of first main body, 33 bottoms; Load on the intermediate plate 35 between first and second main body 33,34 in order to divide first pressing chamber 31 and second pressing chamber 32; Be installed in first and second flange 36,37 of first main body, 33 tops and second main body, 34 bottoms respectively, support rotating shaft 21 when being used to close on first pressing chamber 31 side opening and second pressing chamber, 32 open lower side.Rotating shaft 21 connects first and second pressing chamber 31,32 centers, so that compression set 40,50 work of first and second pressing chamber 31,32 inside.
First and second compression set 40,50 comprises first and second eccentric part 41,51 that is arranged at each pressing chamber 31,32 rotating shafts 21 outer surface respectively and first and second roller 42,52 that rotatably is incorporated into first and second eccentric part 41,51 outer surfaces for the internal surface with each pressing chamber 31,32 contacts rotation respectively.The eccentric direction that is arranged at first eccentric part 41 of rotating shaft 21 outer surfaces and second eccentric part 51 is opposite mutually.This is in order to keep the equilibrium of both sides, with the variation minimum that when rotating shaft 21 is rotated the rotation commentaries on classics is refused, and to reduce the vibration that is produced.
And, divide first blade 43 of first pressing chamber 31 when first compression set 40 comprises along with the rotation of first roller 42 according to the radially advance and retreat of first pressing chamber 31 and with first leaf spring 44 of first blade 43 to the pressurization of first roller, 42 sides.
And, divide when second compression set 50 comprises along with the rotation of second roller 52 according to the radially advance and retreat of second pressing chamber 32 second pressing chamber 32, surface of contact can be slided second blade 53 supported and the 3rd blade 54 and with second leaf spring 55 of second blade 53 to the pressurization of second roller, 52 sides.Therefore, second pressing chamber 32 is divided by the relative little top with width of big relatively bottom second blade 53 of width the 3rd blade 54.And the 3rd blade 54 retrains it by the blade control gear 70 by the change compression volume or constraint relief is controlled the 3rd blade 54 advance and retreat.The concrete structure of blade control gear 70, the back will be described.
And to shown in Figure 5, the outer surface for preceding end in contact second roller 52 that prevents the 3rd blade 54 comprises from its upper front end extending portion 53a that prolong, that be used to cover the 3rd blade 54 front ends second blade 53 as Fig. 1.Therefore, the front end of second blade 53 has the width up and down corresponding to second roller, 52 height, so have only the outer surface of preceding end in contact second roller 52 of second blade 53.In addition, the front end of the 3rd blade 54 is for the extending portion 53a rear end of being close to second blade 53 and keep its state and have width up and down corresponding to extending portion 53a rear end.This is for the outer surface that makes second roller 52 in compression process all is contacted with second blade, 53 front ends with extending portion 53a equably, prevents the heavy wear of second roller, 52 outer surfaces thus.And, for the change of controlling capacity the 3rd blade 54 retrained or the process of constraint relief in the front end of the 3rd blade 54 can not be contacted with second roller 52, thereby prevent the generation of impact noise.
As shown in Figures 2 and 3, first and second main body 33,34 is formed for first and second suction port 61,62 to first and second pressing chamber 31,32 inner inflow gas respectively, connects first and second suction pipe 15,16 on these suction ports 61,62 respectively.First and second suction pipe 15,16 is to be sucked pipe arrangement 14 branches and formed by the refrigeration agent that prolongs from liquid-storage container 13 as shown in Figure 1.And top first flange 36 and bottom second flange 37 form first exhaust port 63 and second exhaust port 64 respectively, are used for discharging the pressurized gas at each pressing chamber 31,32.Therefore, seal container 10 inside be by will keeping high pressure conditions by the pressurized gas that first and second exhaust port 63,64 is discharged when compressor is started, and the pressurized gas of seal container 10 inside is directed into the outside by the discharge pipe arrangement 12 that is arranged at seal container 10 tops.
As shown in figures 1 and 3, blade control gear 70 comprises the cylinder 71 that is arranged at the 3rd blade 54 rear end side and is arranged in the cylinder 71 and by the 3rd blade 54 advance and retreat directions piston 72 advance and retreat, that be connected in the 3rd blade 54 rear ends.And blade control gear 70 also comprises: be connected in the first pressure regulation tube 73a of cylinder 71 rear ends, be used to form the first passage 73 that is connected with cylinder 71 inside; The second pressure regulation tube 74a that forms and be connected with the first pressure regulation tube 73a from discharging pipe arrangement 12 branches is used to form the second channel 74 that is communicated with compressor discharge side and first passage 73; The 3rd pressure regulation tube 75a that forms and be connected with the first pressure regulation tube 73a from 14 separation of refrigeration agent suction pipe arrangement is used to form the third channel 75 that is communicated with compressor suction side and first passage 73; Be arranged on the changeable channel valve 76 of first, second, third pressure regulation tube 73a, 74a, 75a joint.Changeable channel valve 76 can be made of the common three-way valve by electric control signal control.
The following describes the working procedure of this capacity variable rotary compressor.
As shown in Figure 1, startup compressor under the state that is communicated with second channel 74 and first passage 73 by changeable channel valve 76, then the discharge side pressure in blade control gear 70 cylinders 71 acts on piston 72, makes its 3rd blade 54 that pressurizes.So the front end of the 3rd blade 54 is close to the extending portion 53a rear end of second blade 53.
And first blade 43 is by the pressurization of first leaf spring 44, so divide first pressing chamber 31 when advancing and retreat along with the rotation of first roller 42; Second blade 53 is by the pressurization of second leaf spring 55, so and divide second pressing chamber 32 the common advance and retreat of the 3rd blade 54 time.In addition, at this moment because first pressing chamber 31 and second pressing chamber 32 all carry out compression work, thereby make the compression volume maximum.
As shown in Figure 4, startup compressor under the state that is communicated with third channel 75 and first passage 73 by changeable channel valve 76, then the suction side pressures in blade control gear 70 cylinders 71 act on piston 72 and it are retreated, and the front end that makes the 3rd blade 54 along with retreating of piston 72 from the extending portion 53a rear end of second blade 53 separately.That is, have only this moment second blade 53 to carry out the advance and retreat action, and the 3rd blade 54 is kept the state that rests on the rear by 70 constraints of blade control gear.So, produce insulating space between the extending portion 53a of second blade 53 and the front end of the 3rd blade 54, so that second pressing chamber 32 is realized idle running, and reduce compression volume thus.When the volume of the volume of first pressing chamber 31 and second pressing chamber 32 is identical, owing to can not compress in second pressing chamber 32, thereby compression volume is 50% of a maximum compression capacity.
And the volume that makes the volume of first pressing chamber 31 and second pressing chamber 32 as the present invention can make the excursion difference of compression volume not simultaneously.That is, when the ratio that makes first pressing chamber, 31 volumes and second pressing chamber, 32 volumes is 40: 60, and make second pressing chamber 32 realize idle running, then compression volume is 40% of a maximum compression capacity.When the volume ratio that makes first pressing chamber 31 and second pressing chamber 32 is 30: 70, and make second pressing chamber 32 realize idle running, then compression volume is 30% of a maximum compression capacity.
And the present invention can make minimum to the variation more of maximum compression volume excursion by the actuation cycle of control blade control gear 70.That is, by to 54 execution constraints of the 3rd blade and constraint relief second pressing chamber, 32 sides being compressed and the action of dallying repeatedly repeatedly, the excursion that then can make compression volume is variation more.
For example, when the volume ratio of first pressing chamber 31 and second pressing chamber 32 is 50: 50, the constraint of the 3rd blade 54 is set at 50%, then compression volume becomes 75% of maximum compression capacity; When volume ratio is identical, the constraint of the 3rd blade 54 is set at 80%, then compression volume becomes 60% of maximum compression capacity.
And, when the volume ratio of first pressing chamber 31 and second pressing chamber 32 is 30: 70, the constraint of the 3rd blade 54 is set at 50%, then compression volume becomes 65% of maximum compression capacity; When volume ratio is identical, the constraint of the 3rd blade 54 is set at 80%, then compression volume becomes 44% of maximum compression capacity.
The schematic representation of the capacity variable rotary compressor that Fig. 6 is provided for the foundation second embodiment of the invention.Second embodiment has only the blade control type capacity variable rotary compressor of a pressing chamber.Compressing mechanism 100 comprises among second embodiment: the shell with a pressing chamber 101; The roller 103 that off-centre is rotated in pressing chamber 101 by the rotation of rotating shaft 102; Divide first blade 110 and second blade 120 pressing chamber 101, that can slide mutually and support according to radially advance and retreat time of roller 103.And, also comprise in order to control compression volume and second blade 120 to be retrained or the blade control gear 130 of constraint relief.
In a second embodiment, in order to prevent the outer surface of second blade, 120 contact rollers 103, first blade 110 is comprised from its upper front end extending portion 111 that prolong, that be used to cover second blade, 120 front ends.Therefore, the front end of first blade 110 has the width up and down corresponding to roller 103 height, so have only the outer surface of the front end contact roller 103 of first blade 110.In addition, the front end of second blade 120 has the width up and down corresponding to extending portion 111 rear ends for extending portion 111 rear ends of being close to first blade 110.Second blade 53 among this blade 110,120 and above-mentioned first embodiment is identical with the structure of the 3rd blade 54.Therefore, can prevent the heavy wear and the impact noise of roller 103 by the structure of this blade 110,120.
Second embodiment's variable-displacement action retrains by 130 pairs second blades 120 of blade control gear or the control of constraint relief is compressed and the action of dallying repeatedly.That is, if the constraint of second blade 120 is set at 50%, then compression volume is 50% of a maximum compression capacity; If the constraint of second blade 120 is set at 70%, then compression volume is 30% of a maximum compression capacity.
In sum, foundation capacity variable rotary compressor provided by the present invention is because the second blade tool Be useful on the extension that covers the 3rd blade front end and prolong, thereby can prevent three-vaned front termination Touch roller, and have and to prevent that the roller outer surface is by the effect of heavy wear.
Claims (9)
1. a capacity variable rotary compressor is characterized in that comprising: the shell with first and second pressing chamber of being divided mutually; Be separately positioned on first and second roller in described first and second pressing chamber; The time divide first blade of described first pressing chamber according to the radially advance and retreat of described first roller; The time divide second blade and the 3rd blade described second pressing chamber, that can slide mutually and support according to the radially advance and retreat of described second roller; And compression volume retrains described the 3rd blade or the blade control gear of constraint relief in order to control; Wherein, described second blade comprises the extending portion that prolongs up or down from its front end, be used to cover described the 3rd blade front end.
2. capacity variable rotary compressor according to claim 1 is characterized in that the outer surface of described second roller of preceding end in contact of described second blade, and has the width up and down corresponding to the described second roller height.
3. capacity variable rotary compressor according to claim 2 is characterized in that described three-vaned front end is close to the rear end of described extending portion, and has the width up and down corresponding to described extending portion rear end.
4. capacity variable rotary compressor according to claim 1 is characterized in that described blade control gear comprises: the cylinder that is arranged on the described shell of described the 3rd blade-side; Can advance and retreat and be arranged in the described cylinder and the piston that is connected with described the 3rd blade; The first passage that is connected with described cylinder internal; Connect described compressor and discharge the second channel of side and described first passage; The third channel that connects described compressor suction side and described first passage; And be arranged on the changeable channel valve that described first, second, third passage interconnects the place.
5. capacity variable rotary compressor according to claim 1 is characterized in that the width of described three-vaned width less than described second blade.
6. a capacity variable rotary compressor is characterized in that comprising: the shell with pressing chamber; Be arranged on the roller in the described pressing chamber; The time divide first blade and second blade described pressing chamber, that can slide mutually and support according to the radially advance and retreat of described roller; And, described second blade is carried out the blade control gear of constraint or constraint relief in order to control compression volume; Wherein, described first blade comprises the extending portion that prolongs up or down from its front end, be used to cover the described second blade front end.
7. capacity variable rotary compressor according to claim 6 is characterized in that the outer surface of the described roller of preceding end in contact of described first blade, and has the width up and down corresponding to described roller height.
8. capacity variable rotary compressor according to claim 7 is characterized in that the front end of described second blade is close to the rear end of described extending portion, and has the width up and down corresponding to described extending portion rear end.
9. capacity variable rotary compressor according to claim 6 is characterized in that described blade control gear comprises: the cylinder that is arranged on the described shell of described second blade-side; Can advance and retreat and be arranged in the described cylinder and the piston that is connected with described second blade; The first passage that is connected with described cylinder internal; Connect described compressor and discharge the second channel of side and described first passage; The third channel that connects described compressor suction side and described first passage; And, be arranged on the changeable channel valve that described first, second, third passage interconnects the place.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050084767 | 2005-09-12 | ||
| KR1020050084767A KR100780780B1 (en) | 2005-09-12 | 2005-09-12 | Variable capacity rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1932291A CN1932291A (en) | 2007-03-21 |
| CN100404866C true CN100404866C (en) | 2008-07-23 |
Family
ID=37878273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101279304A Expired - Fee Related CN100404866C (en) | 2005-09-12 | 2005-12-07 | Variable capacity rotary compressor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100780780B1 (en) |
| CN (1) | CN100404866C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0494495A (en) * | 1990-08-09 | 1992-03-26 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN1467379A (en) * | 2002-07-09 | 2004-01-14 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
| KR20040021140A (en) * | 2002-09-02 | 2004-03-10 | 삼성전자주식회사 | Variable capacity rotary compressor |
| CN1517559A (en) * | 2003-01-06 | 2004-08-04 | 三星电子株式会社 | Variable capacitance rotary compressor |
| CN1521402A (en) * | 2003-02-14 | 2004-08-18 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3335656B2 (en) * | 1992-02-18 | 2002-10-21 | 株式会社日立製作所 | Horizontal compressor |
| KR100290711B1 (en) * | 1997-12-23 | 2002-01-15 | 구자홍 | Rotary Compressor for two step compress |
| JP3490950B2 (en) | 2000-03-15 | 2004-01-26 | 三洋電機株式会社 | 2-cylinder 2-stage compression type rotary compressor |
| JP2005207306A (en) | 2004-01-22 | 2005-08-04 | Mitsubishi Electric Corp | Two cylinder rotary compressor |
-
2005
- 2005-09-12 KR KR1020050084767A patent/KR100780780B1/en active IP Right Grant
- 2005-12-07 CN CNB2005101279304A patent/CN100404866C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0494495A (en) * | 1990-08-09 | 1992-03-26 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN1467379A (en) * | 2002-07-09 | 2004-01-14 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
| US6716007B2 (en) * | 2002-07-09 | 2004-04-06 | Samsung Electronics Co., Ltd. | Variable capacity rotary compressor |
| KR20040021140A (en) * | 2002-09-02 | 2004-03-10 | 삼성전자주식회사 | Variable capacity rotary compressor |
| CN1517559A (en) * | 2003-01-06 | 2004-08-04 | 三星电子株式会社 | Variable capacitance rotary compressor |
| CN1521402A (en) * | 2003-02-14 | 2004-08-18 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100780780B1 (en) | 2007-11-29 |
| CN1932291A (en) | 2007-03-21 |
| KR20070030026A (en) | 2007-03-15 |
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