CN101054977A - Variable capacity rotary compressor and method of varying capacity thereof - Google Patents
Variable capacity rotary compressor and method of varying capacity thereof Download PDFInfo
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- CN101054977A CN101054977A CNA2007100787784A CN200710078778A CN101054977A CN 101054977 A CN101054977 A CN 101054977A CN A2007100787784 A CNA2007100787784 A CN A2007100787784A CN 200710078778 A CN200710078778 A CN 200710078778A CN 101054977 A CN101054977 A CN 101054977A
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- release time
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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
- F04C23/008—Hermetic pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0854—Vane tracking; control therefor by fluid means
- F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
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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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
- F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
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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
- F04C18/344—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 inner 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
- 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
- F04C18/3562—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 the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—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 the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The total conception of the invention discloses a variable capacity rotation compressor and a volume change method which uses the variable capacity rotation compressor. The variable capacity rotation compressor comprises a shell with a compression chamber, a roller which contacts the surface of the internal circumference of the compression chamber when being rotated in the compression chamber, a vane which moves forwards and backwards along a guide concave trough which is formed in the shell along the radial direction of the compression chamber, a vane control device which controls that whether the vane is continuously contacted with the surface of the external circumference of the roller by the restriction and the release of the adjusting vane, and a controller which outputs a control signal to the vane control device so as to change the compression capacity and adjust the proportion of the restriction time and the release time of the vane.
Description
Technical field
The method that general plotting of the present invention relates to a kind of variable capacity rotary compressor and changes its capacity, more particularly, the method that relates to a kind of like this variable capacity rotary compressor and change the capacity of this compressor, wherein, be arranged on vane limits time in the rotary compressor and/or the ratio of release time by adjusting, can realize that continuous capacity changes and do not stop the operation of compressor.
Background technique
Usually, variable displacement compressor has according to the changeable compression volume of required load, and is divided at the uniform velocity compressor and variable speed compressor usually.
At the uniform velocity compressor is a kind of usually with rotation compressor at the uniform velocity, but sense of rotation that can be by making compressor is from becoming forward backward or from becoming backward forward at two its capacity of phasic change, thereby realizes the change of compressor capacity.The 2004-0097746 Korean patent publication discloses a kind of example of at the uniform velocity compressor.
The 2004-0097746 Korean Patent has openly been described a kind of rotary compressor, and this compressor comprises the cylinder of the internal volume with preliminary dimension, is spaced from each other a plurality of suction ports of layout when limiting fluid tank with the interior perimeter surface of cylinder at the roller that rotates in the cylinder and in fluid tank at a predetermined angle.According to the sense of rotation of live axle optionally open a plurality of suction ports so that the compression volume of rotary compressor according to sense of rotation at two phasic changes.
Variable speed compressor is a kind of by regulating the compressor that the rotation of compressor per minute can change compression volume.Realize the adjusting that per minute rotates by frequency variator, described frequency variator is attached to the per minute rotation that is used to make on the compressor motor rotating and is suitable for regulating motor.The 2001-0018242 Korean patent publication discloses the example of variable speed compressor.
The 2001-0018242 Korean patent publication has been described a kind of compressor with frequency variator, in the described frequency variator sensing chamber and outdoor temperature, and the cooling capacity by the temperature difference between the room temperature of using and presetting, operated indoor unit waits the whole loads of calculating compressor and the speed of motor, and control electronic device, thereby realize the change of compressor compresses capacity based on the speed of calculating.
In aforesaid tradition at the uniform velocity in the compressor, in order to realize the change of capacity, compressor is had to stop the scheduled time and will direction be forward converted direction backward to or will direction backward convert forward direction to, and only may realize the change of compressor capacity two stages, so be restricted in this respect.In order to make the compressor capacity variation, need bypass be set for a part of refrigerant that will discharge, just there is such problem in this, and for example operating efficiency variation and manufacture cost increase.
In traditional speed change degree compressor, though continuously changing of compressor capacity is fine, but variable speed compressor needs expensive frequency variator to regulate the change of the rotation of compressor per minute with the realization compressor capacity, therefore, has the problem that increases manufacture cost.
Summary of the invention
General plotting of the present invention is the capacity change method that a kind of variable capacity rotary compressor is provided and uses this variable capacity rotary compressor, and this variable capacity rotary compressor can realize that by the control gear cheaply that use has simple structure continuous capacity changes.
General plotting of the present invention also is the method that a kind of variable capacity rotary compressor is provided and changes the capacity of this compressor, and this variable capacity rotary compressor has shown the highest efficient in the gamut of variable compressive capacity.
The others of general plotting of the present invention and an advantage part will be set forth in the following description, and a part will become clear or can learn by the time of general plotting of the present invention from describe.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize that this variable capacity rotary compressor comprises by a kind of variable capacity rotary compressor is provided: housing has pressing chamber; Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber; Blade moves forward and backward along direction recess according to the rotation of described roller, and described direction recess is formed in the described housing along the radial direction of described pressing chamber; Blade control gear, the restriction by adjusting vane and discharging are controlled the whether outer surface of the described roller of Continuous Contact of blade; Controller outputs to described blade control gear with control signal, the compression volume that changes described compressor with the binding hours of regulating described blade and the ratio of release time.
Described direction recess can comprise closed chamber holding the rear end of described blade, and described blade control gear can be applied to restriction and the release that pressure in the closed chamber is regulated described blade by adjusting based on described control signal.
Described blade control gear can comprise: high-voltage tube is connected to described closed chamber the waste side of described compressor; Low-voltage tube is connected to described closed chamber the suction side of described compressor; The flow channel selector optionally is connected to described high-voltage tube or low-voltage tube with described closed chamber.
Described flow channel selector can be 3 phase valves by described control signal switch, the binding hours of described blade and the ratio of release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize that this variable capacity rotary compressor comprises by a kind of variable capacity rotary compressor is provided: housing has pressing chamber; Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber; Blade moves forward and backward along direction recess according to the rotation of described roller, and described direction recess is formed in the described housing along the radial direction of described pressing chamber; The blade control gear, the restriction by adjusting vane and discharge the outer surface of controlling the described roller of blade Continuous Contact; Controller outputs to described blade control gear with control signal, to regulate the binding hours of described blade and the compression volume that changes described compressor release time in the cycle at preset time.
The binding hours of described blade and each of release time can be the integral multiples of the one-period time (one turn time) of described compressor, and the summation of described binding hours and release time can be and a preset time cycle time corresponding.
Described direction recess can comprise closed chamber holding the rear end of described blade, and described blade control gear can be applied to binding hours and the release time that pressure in the closed chamber is regulated described blade by adjusting based on described control signal.
Described blade control gear can comprise: high-voltage tube is connected to described closed chamber the waste side of described compressor; Low-voltage tube is connected to described closed chamber the suction side of described compressor; The flow channel selector optionally is connected to described high-voltage tube or low-voltage tube with described closed chamber.
Described flow channel selector can be 3 phase valves by described control signal switch, the binding hours of described blade and release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
But described controller executive control operation reduces with the binding hours that makes described blade in a time cycle, and increased to increase compression volume the release time of described blade.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize that this variable capacity rotary compressor comprises by a kind of variable capacity rotary compressor is provided: housing has first pressing chamber and second pressing chamber that are separated from each other; First roller and second roller rotate in described first pressing chamber and second pressing chamber respectively, contact with the interior perimeter surface of described first pressing chamber and second pressing chamber respectively simultaneously; First blade and second blade, move forward and backward along first direction recess and second direction recess respectively according to the rotation of described first roller and second roller respectively, described first direction recess and second direction recess are formed in the described housing along the radial direction of described first pressing chamber and second pressing chamber respectively; The first blade control gear is applied to binding hours and the release time that pressure on described first blade is regulated first blade by use, to control the whether outer surface of described first roller of Continuous Contact of first blade; Controller outputs to the described first blade control gear with control signal, the compression volume that changes described compressor with the binding hours of regulating described first blade and the ratio of release time.
Described first direction recess can comprise first closed chamber holding the rear end of described first blade, and the described first blade control gear can be regulated the pressure that is applied on described first blade and described pressure is applied to described first closed chamber based on described control signal.
The described first blade control gear can comprise: first high-voltage tube is connected to described first closed chamber waste side of described compressor; First low-voltage tube is connected to described first closed chamber suction side of described compressor; The first mobile channel selector optionally is connected to described first high-voltage tube or first low-voltage tube with described first closed chamber.
Described first channel selector that flows can be 3 phase valves by described control signal switch, the binding hours of described first blade and the ratio of release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
Described second direction recess can comprise that second closed chamber is to hold the rear end of described second blade, described compressor also can comprise the second blade control gear, and the described second blade control gear is applied to binding hours and the release time that pressure in described second closed chamber is regulated described second blade based on described control signal by adjusting.
Described first pressing chamber has different compression volumes with described second pressing chamber.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize that described variable capacity rotary compressor has by a kind of method that changes the capacity of variable capacity rotary compressor is provided: housing has pressing chamber; Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber; Blade, the inside of described pressing chamber is divided into low-pressure section and high-pressure section, move forward and backward along the radial direction of described pressing chamber with the rotation according to described roller, said method comprising the steps of: the serviceability according to described indoor unit calculates the air-conditioning load; Based on the air-conditioning load of described calculating binding hours and the ratio of the release time compression volume of coming to change accordingly described pressing chamber by regulating described blade with the air-conditioning load of described calculating.
When described blade was limited, described blade can not contact with the outer surface of described roller continuously, and when described confined blade was released, described blade can contact continuously with the outer surface of described roller.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize that this variable capacity rotary compressor comprises by a kind of variable capacity rotary compressor is provided: main body, form pressing chamber, and described pressing chamber has roller therein; Blade is arranged in the described main body movingly, to move between forward position and position backward; Controller, produce control signal with according to release time and binding hours controlling described blade, the continuous running that keeps pressing chamber with the compression volume that changes described pressing chamber simultaneously, described blade during described release time described forward the position and position backward between move, described blade remains in backward the position during described binding hours.
Described compressor also comprises the blade control gear, described blade control gear based on the control signal of described generation by discharging described blade from backward position and by regulate the motion of described blade at the described blade of position limit forward.
Described controller can produce control signal at predetermined compression time and control and its binding hours is reduced and make increase release time in the cycle, keep the continuous operation of described compressor simultaneously with the compression volume that increases described pressing chamber.Described controller can produce control signal at predetermined compression time and control and binding hours is increased and make minimizing release time in the cycle, keep the continuous operation of described compressor simultaneously with the compression volume that reduces described pressing chamber.
Described compressor also can comprise: second pressing chamber; Second blade is arranged in described second pressing chamber to move between second forward the position backward, position and second.Described controller can keep the constant compression volume of described second pressing chamber.Described controller can produce second control signal with according to release time and binding hours controlling described second blade, the continuous running that keeps pressing chamber with the compression volume that changes described second pressing chamber simultaneously, move between described second forward the position backward, position and second at described second blade during described release time, described second blade remains on second backward the position during described binding hours.
Described compressor also can comprise: the second blade control gear, based on the control signal that produces by discharging described second blade from described position backward and by second vane limits is regulated the motion of described second blade described position backward.The zero load operation and the corresponding described release time and the binding hours of squeeze operation of described controller may command and described pressing chamber do not stop the operation of described compressor so that described compression volume changes.
Above-mentioned and/or the others of general plotting of the present invention and effect can realize by a kind of method that changes the capacity of variable capacity rotary compressor is provided, described variable capacity rotary compressor comprises: main body, form pressing chamber, described pressing chamber has roller therein; Blade, be arranged on movingly in the described main body, between forward position and position backward, to move, described method comprises: control release time and binding hours keep described compressor simultaneously with the compression volume that changes described pressing chamber continuous running, during described release time, blade moves between forward position and position backward, and during described binding hours, blade remains on position backward.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, it is clear and easier to understand that these of general plotting of the present invention and/or others and advantage will become, wherein:
Fig. 1 is the sectional view that the embodiment's of general plotting the variable capacity rotary compressor according to the present invention is shown;
Fig. 2 is the sectional view of cutting open along the II-II ' line of Fig. 1;
Fig. 3 A and Fig. 3 B be Fig. 1 of general plotting embodiment according to the present invention is shown variable capacity rotary compressor in first pressing chamber at the unloaded revolving process and the sectional view in squeeze operation stage;
Fig. 4 is the sectional view that another embodiment's of general plotting the variable capacity rotary compressor according to the present invention is shown;
Fig. 5 is the schematic controlling party block diagram that the variable capacity rotary compressor of the embodiment of general plotting according to the present invention is shown;
Fig. 6 is the plotted curve that the control signal on the blade control gear of general plotting embodiment's the variable capacity rotary compressor that is applied to Fig. 1 according to the present invention is shown;
Fig. 7 is the form that the example of the binding hours of the blade of the variable capacity rotary compressor of Fig. 1 of general plotting embodiment according to the present invention and the ratio of release time is shown;
Fig. 8 is the plotted curve that the efficient and the relation between the compression volume of the variable capacity rotary compressor of Fig. 4 of general plotting embodiment according to the present invention are shown;
Fig. 9 is the flow chart that the method for the capacity change that makes general plotting embodiment's the variable capacity rotary compressor according to the present invention is shown.
Embodiment
To describe the embodiment of general plotting of the present invention now in detail, its example is shown in the drawings, and wherein, identical label is represented components identical all the time.Below, embodiment is described with reference to the accompanying drawings to explain general plotting of the present invention.
Fig. 1, Fig. 2, Fig. 3 A and Fig. 3 B are the views of the embodiment's of general plotting the variable capacity rotary compressor according to the present invention.As shown in Figure 1, the rotary compressor of present embodiment comprises electronic device 20 in the top that is installed in seal container 10, is installed in the bottom of seal container 10 and is connected to compression set 30 on the electronic device 20 by running shaft 21.
The housing of compression set 30 comprises top first body 33 that limits first pressing chamber 31, limits bottom second body 34 of second pressing chamber 32 below first body 33, at the open lower side of side opening and second pressing chamber 32 first flange 36 and second flange 37 of formation respectively with first pressing chamber 31 and second pressing chamber, 32 separated intermediate plates 35 and between first body 33 and second body 34 with first pressing chamber 31 with sealing.First flange 36 and second flange 37 are installed in the top of first body 33 and the bottom of second body 34 respectively, with supporting rotating shaft 21 together.Running shaft 21 is installed so that its pass the center of first pressing chamber 31 and second pressing chamber 32 and be connected to first pressing chamber 31 and second pressing chamber 32 in first compression unit 40 and second compression unit 50.
As shown in Figure 2, first closed chamber 46 is formed on the rear side of the first blade direction recess 44, and is suitable for holding the rear end of first blade 43.First closed chamber 46 separates by intermediate plate 35 and first flange 36 inner space with seal container 10.First closed chamber 46 can hold the gas of prearranging quatity, and is limited by the cylindrical dilatation part 46a with diameter bigger than first blade, 43 width.The rear end of first blade 43 can be formed by curved surface 43a, to be reduced in the noise that first blade 43 produces when the cylindrical dilatation part 46a of the rear end of first blade 43 and first closed chamber 46 collision between moving period backward.In order to add the effect that very noisy reduces, shock absorption member (not shown) can be installed in the position of collision of the rear end of first blade 43 or cylindrical dilatation part 46a.
In the present embodiment, the first blade control gear 60 is set limits the state that first blade 43 moves backward in first closed chamber 46 so that suction pressure is applied to, perhaps discharge pressure is applied to and discharges confined first blade 43 in first closed chamber 46, thereby allow first blade 43 forward and motion backward.By being applied to, suction pressure limits first blade 43 in first closed chamber 46, with being applied to, discharge pressure discharges confined first blade 43 in first closed chamber 46, the first blade control gear 60 makes first pressing chamber 31 be in squeeze operation or unloaded rotation status, thereby can change compression volume.The concrete structure and the operation of the first blade control gear 60 below will be described.
As shown in Figure 1, blade control gear 60 comprises: first connecting tube 61 is directly connected to first closed chamber 46 of the first blade direction recess, 44 rear sides; First high-voltage tube 62 is connected to discharge pipe 77 with first connecting tube 61; First low-voltage tube 63 is connected to suction pipe 70 with first connecting tube 61; The first mobile channel selector 64 optionally is connected first connecting tube 61 with first high-voltage tube 62 or first low-voltage tube 63.The flow channel that extends through first high-voltage tube, 62, the first mobile channel selector 64 and first connecting tube 61 defines the high-pressure flow passage discharge pressure is sent in first closed chamber 46.In addition, extend through first low-voltage tube 63, first flow channel that flows the channel selector 64 and first connecting tube 61 defines the low pressure flow channel suction pressure is sent in first closed chamber 46.The first mobile channel selector 64 is installed in first connecting tube 61, first high-voltage tube 62 and first low-voltage tube, 63 interconnective positions, and its example can be to comprise electrically operated 3 phase valves.First connecting tube 61 has the outlet that is connected to first flange 36, and first flange 36 has communication passage 36a so that first connecting tube 61 and first closed chamber 46 directly are communicated with.In another example, first connecting tube 61 of the first blade control gear 60 can be connected to intermediate plate 35, and intermediate plate 35 can have the communication passage that is communicated with first closed chamber 46.
Now, will the operation of the first blade control gear 60 be described.
As depicted in figs. 1 and 2, flow channel selector 64 work so that first high-voltage tube 62 is communicated with first connecting tube 61 when first, discharge pressure is applied to first closed chamber 46.
Therefore, discharge pressure promotes first blade 43 towards first pressing chamber 31, thereby the off-centre rotation of first blade, 43 bases, first roller 42 is as shown in Figure 2 carried out forward and motion backward.On the other hand, flow channel selector 64 work so that first low-voltage tube 53 is communicated with first connecting tube 61 when first, suction pressure is applied to first closed chamber 46.In this case, as shown in Figure 3A, first blade 43 stops at the state that it moves backward, thereby makes the 31 unloaded rotations (being called " restriction state ") of first pressing chamber.Specifically, if suction pressure is applied to first closed chamber 46, then the pressure in first pressing chamber 31 becomes the pressure that is greater than or equal in first closed chamber 46.This is because the suction pressure in being applied to first pressing chamber 31, is rotated in first pressing chamber 31 by the off-centre of first roller 42 to cause slight squeeze operation.
When first pressing chamber 31 and first closed chamber 46 were in the state of pressurized according to suction pressure, first blade was according to the off-centre rotation and the motion backward of first roller, and was restricted so that it can not travel forward.Like this, do not exist in the differentiation that refrigerant in first pressing chamber 31 sucks part and discharge unit, the refrigerant that causes entering into first pressing chamber 31 does not only have the compression stroke (the unloaded operation) of essence along 31 circulations of first pressing chamber.In Fig. 3 A, represent to be applied to power on first blade 43 at the arrow shown in first blade 43, the change in the refrigerant pressure that the arrow shown in first connecting tube 61 is represented when disconnecting being connected of first connecting tube 61 and first high-voltage tube 62 to cause when being communicated with first low-voltage tube 63 by pressure difference.
On the contrary, if discharge pressure is applied to first closed chamber 46, then the pressure in first closed chamber 46 becomes greater than the pressure in first pressing chamber 31, thereby cause first blade to move forward and backward according to the off-centre rotation of first roller 42, to be implemented in the squeeze operation (being called " restriction releasing state ") in first pressing chamber 31, that is squeeze operation.
In the present embodiment, as mentioned above, under the control of the first blade control gear 60, optionally limit the operation of first blade 43,, thereby compression volume is changed so that first pressing chamber 31 is in squeeze operation or unloaded rotation status.Specifically, flow channel selector 64 with the binding hours of regulating first blade 43 and/or the ratio of release time if digital controlled signal is applied to first, then the compression volume of first pressing chamber 31 can change based on whole compression volumes from 0% to 100%.The change of compression volume is described hereinafter with reference to Fig. 6 and Fig. 7.
Fig. 7 is change and the binding hours of blade and the form of the example of release time of compression volume that embodiment's load control graph 1 as required of the general plotting according to the present invention is shown.The form of Fig. 7 is to obtain under below the condition: the capacity change phase is 20 seconds, two pressing chambers have been prepared with different compression volumes, only have a pressing chamber to be provided with the blade control gear, a pressing chamber (having the blade control gear) is 7: 3 with the capacity ratio of another pressing chamber (not having the blade control gear).
Referring to figs. 1 through Fig. 3 B and Fig. 7, but the compression volume predetermined time cycle of top first pressing chamber 31 change, each time cycle can be to discharge the required time T _ p sum of the required time T _ f of first blade 43 and restriction first blade 43.In Fig. 7, each predetermined period is arranged to 20 seconds.(each cycle is to discharge the required time T _ p sum of the required time T _ f of first blade 43 and restriction first blade 43 to predetermined time cycle, in Fig. 7, each cycle was configured to 20 seconds) compression volume of top first pressing chamber 31 changes, the compression volume of top first pressing chamber 31 can change by regulating time T _ f and T_p, thereby whole compression volume is changed.
Here, consider the second pressing chamber 32 execution squeeze operation continuously, calculate the compression volume of top first pressing chamber 31.For example, in order to guarantee 50% capacity, except the compression volume of bottom second pressing chamber 32, top first pressing chamber 31 also will charge into 20% of all told.In this case, time T _ f (carry out required time of squeeze operation) should be adjusted to about 6/20 (time 6 second required with discharging first blade 43 is corresponding) that accounts for predetermined period of time 20 seconds in first pressing chamber 31 of top.Load greater than 30% but to regulate less than 100% o'clock such ratio is necessary, and such ratio is regulated and can be applied to first pulse width that flows the digital controlled signal on the channel selector 64 by adjusting and realize simply.Fig. 6 shows the example of control signal under the situation about loading between 30% to 100% in the zone of being appointed as " middle load ".
Above-mentioned predetermined period of time can probably be provided with according to expectation by the user.Predetermined period of time is short more, handles the response that load changes and gets over piece, but have problems such as noise is excessive like this.On the other hand, predetermined period of time is long more, and the response of handling the load change is slow more, still has advantages such as the noise of minimizing like this.
The term of Fig. 6 " only all loads " refers to owing to discharge pressure being applied to first closed chamber 46 first blade 43 be produced forward and motion backward, and top first pressing chamber 31 and bottom second pressing chamber 32 are carried out the state of squeeze operation.In " only all loads " state, only the control signal corresponding with " all " values is applied to the first mobile channel selector 64.On the other hand, " the only partial load " of Fig. 6 refers to that bottom second pressing chamber 32 is carried out squeeze operation because suction pressure is applied to first closed chamber 46 to limit first blade 43, and top first pressing chamber 31 is carried out the state of unloaded rotation.In " only partial load " state, only the control signal corresponding with " part " value is applied to the first mobile channel selector 64.When applying the control signal relevant with " all " values, the first mobile channel selector 64 is connected to first high-voltage tube 62 with first connecting tube 61, otherwise, when applying the control signal relevant with " part " value, the first mobile channel selector 64 is connected to first low-voltage tube 63 with first connecting tube 61.
In the rotary compressor consistent with present embodiment, as mentioned above, bottom second pressing chamber 32 is carried out squeeze operation continuously.Therefore, capacity change scope breaks away from the compression volume of (depart from) bottom second pressing chamber 32, and rotary compressor has realized that the part capacity changes.
Fig. 4 is the sectional view that another embodiment's of general plotting the variable capacity rotary compressor according to the present invention is shown.The compressor of present embodiment can comprise the second blade control gear 80 and the first blade control gear 60 of the restriction that is used to control second blade.Therefore, in the compressor of present embodiment, limit second closed chamber 56 at the rear side of the second blade direction recess 54.The second blade control gear 80 comprises: second connecting tube 81 is connected to second flange 37 directly to be communicated with second closed chamber 56; Second high-voltage tube 82 extends to be connected to second connecting tube 81 from first high-voltage tube 62; Second low-voltage tube 83 extends to be connected to second connecting tube 81 from first low-voltage tube 63; The second flow channel selector 84 optionally is communicated with second connecting tube 81 with second high-voltage tube 82 or second low-voltage tube 83.The operating principle of the second blade control gear 80 is identical or similar with the operating principle of the first blade control gear 60.
Different with the previous embodiment shown in Fig. 1 to Fig. 3 B, even the rotary compressor of present embodiment also can the realization capacity in second pressing chamber 32 of bottom changed, thereby the change of bottom second pressing chamber 32 capacity in the present embodiment can be in 0% to 100% scope of compressor maximum capacity.Yet, in this case, compare with previous embodiment, complex structure and manufacture cost increased.What certainly can understand is, be provided with at compressor under the situation of blade control gear of control blade with single pressing chamber, capacity change can from 0% to 100% gamut in.
Fig. 8 is the plotted curve that the efficient and the relation between the compression volume of the variable capacity rotary compressor of Fig. 4 of general plotting embodiment according to the present invention are shown.From the expression tradition of Fig. 8 at the uniform velocity compressor efficiency dotted line as can be seen, under the second stage compression volume situation consistent with the air-conditioning load, the efficient height of traditional compressor.Yet at compression volume and inconsistent some A of air-conditioning load and some B, a part of refrigerant that is discharged is had to force to realize required load by bypass, has been caused deterioration of efficiency.On the other hand, in the rotary compressor consistent (" new compressor " among Fig. 8) with present embodiment, as using the first blade control gear 60 and the second blade control gear 80 to regulate the binding hours of first blade 43 and second blade 53 and the result of the ratio of release time, can realize high efficiency and without the refrigerant bypass to force to be lifted at the compression volume of an A and some B.In addition, tradition at the uniform velocity compressor need stop the required scheduled time changing compression volume, but the rotary compressor of present embodiment can realize the change of compression volume and not need to be stopped, thereby higher than the efficient of traditional compressor.
Below, the embodiment's of change general plotting according to the present invention the method for compressor capacity is described with reference to Fig. 5 and Fig. 9.
Suppose to have the one-to-many air-conditioning (multi-type airconditioner) of a plurality of indoor unit 401a to 401d, at operation S910, controller 410 utilizes the refrigeration performance of temperature difference between serviceability, preset temperature and each room temperature of a plurality of indoor unit 401a to 401d, each indoor unit to wait and calculates required total air-conditioning load.Then, at operation S920, controller 410 calculates the compression volume of the compressor corresponding with total air-conditioning load of calculating.Specifically,, consider that bottom second pressing chamber 32 is remained on the fact of pressured state continuously, calculate the compression volume (operation S920) that in first pressing chamber 31 of top, realizes referring to figs. 1 through Fig. 3 B.And, with reference to Fig. 4, because top first pressing chamber 31 and bottom second pressing chamber 32 can change by the realization capacity, so, calculate the compression volume (operation S920) that in each of top first pressing chamber 31 and bottom second pressing chamber 32, realizes in the compression volume of considering top first pressing chamber 31 and bottom second pressing chamber 32 with all under the situation of compression volumes.
At operation S930,, determine the binding hours of blade (for example, first blade 43 shown in Fig. 1 and Fig. 4 and second blade 53) and/or the ratio of release time based on the compression volume of each pressing chamber that calculates.If consider the cycle in control time the binding hours and/or the ratio of release time of blade preset and be saved as form, then the change of compression volume can realize more effectively.Controller 410 (for example is applied to the blade control gear with the control signal corresponding with the binding hours of blade and/or the preset proportion of release time, the first blade control gear 60 shown in Fig. 1 and Fig. 4 and the second blade control gear 80), to change compression volume.As the control signal that is applied to based on reception on the blade, (for example carry out blade according to preset proportion, blade 43 and 53) the restriction and the result of release, required compression process and unloaded rotation are repeated with preset frequency, thereby guarantee the compression volume corresponding with the air-conditioning load (operation S940).
From the above description can be clear, the embodiment's of general plotting variable capacity rotary compressor can continuously change compression volume with low cost according to the present invention.
In addition, the embodiment's of general plotting variable capacity rotary compressor can be realized squeeze operation most effectively in the variable-displacement gamut according to the present invention.
In addition, the embodiment's of general plotting variable capacity rotary compressor can be realized continuously changing of capacity and need not carry out the shut-down operation of compressor according to the present invention.
Though shown and described according to the present invention several embodiments of general plotting, but it should be appreciated by those skilled in the art, under the situation of principle that does not break away from general plotting of the present invention and spirit, can change these embodiments, the scope of general plotting of the present invention is limited by claim and equivalent thereof.
Claims (28)
1, a kind of variable capacity rotary compressor comprises:
Housing has pressing chamber;
Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber;
Blade moves forward and backward along direction recess according to the rotation of described roller, and described direction recess is formed in the described housing along the radial direction of described pressing chamber;
Blade control gear, the restriction by adjusting vane and discharging are controlled the whether outer surface of the described roller of Continuous Contact of blade;
Controller outputs to described blade control gear with control signal, the compression volume that changes described compressor with the binding hours of regulating described blade and the ratio of release time.
2, compressor as claimed in claim 1, wherein,
Described direction recess comprises closed chamber holding the rear end of described blade,
Described blade control gear is applied to restriction and the release that pressure in the closed chamber is regulated described blade based on described control signal by adjusting.
3, compressor as claimed in claim 2, wherein, described blade control gear comprises:
High-voltage tube is connected to described closed chamber the waste side of described compressor;
Low-voltage tube is connected to described closed chamber the suction side of described compressor;
The flow channel selector optionally is connected to described high-voltage tube or low-voltage tube with described closed chamber.
4, compressor as claimed in claim 3, wherein, described flow channel selector is 3 phase valves by described control signal switch, the binding hours of described blade and the ratio of release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
5, a kind of variable capacity rotary compressor comprises:
Housing has pressing chamber;
Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber;
Blade moves forward and backward along direction recess according to the rotation of described roller, and described direction recess is formed in the described housing along the radial direction of described pressing chamber;
Blade control gear, the restriction by adjusting vane and discharging are controlled the whether outer surface of the described roller of Continuous Contact of blade;
Controller outputs to described blade control gear with control signal, to regulate the binding hours of described blade and the compression volume that changes described compressor release time in the cycle at preset time.
6, compressor as claimed in claim 5, wherein,
The binding hours of described blade and each of release time are the integral multiples of the one-period time of described compressor,
The summation of described binding hours and release time is and a preset time cycle time corresponding.
7, compressor as claimed in claim 5, wherein,
Described direction recess comprises closed chamber holding the rear end of described blade,
Described blade control gear is applied to binding hours and the release time that pressure in the closed chamber is regulated described blade based on described control signal by adjusting.
8, compressor as claimed in claim 7, wherein, described blade control gear comprises:
High-voltage tube is connected to described closed chamber the waste side of described compressor;
Low-voltage tube is connected to described closed chamber the suction side of described compressor;
The flow channel selector optionally is connected to described high-voltage tube or low-voltage tube with described closed chamber.
9, compressor as claimed in claim 8, wherein, described flow channel selector is 3 phase valves by described control signal switch, the binding hours of described blade and release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
10, compressor as claimed in claim 5, wherein, described controller executive control operation reduces with the binding hours that makes described blade in a time cycle, and increased to increase compression volume the release time of described blade.
11, a kind of variable capacity rotary compressor comprises:
Housing has first pressing chamber and second pressing chamber that are separated from each other;
First roller and second roller rotate in described first pressing chamber and second pressing chamber respectively, contact with the interior perimeter surface of described first pressing chamber and second pressing chamber respectively simultaneously;
First blade and second blade, move forward and backward along first direction recess and second direction recess respectively according to the rotation of described first roller and second roller respectively, described first direction recess and second direction recess are formed in the described housing along the radial direction of described first pressing chamber and second pressing chamber respectively;
The first blade control gear is applied to binding hours and the release time that pressure on described first blade is regulated first blade by use, to control the whether outer surface of described first roller of Continuous Contact of first blade;
Controller outputs to the described first blade control gear with control signal, the compression volume that changes described compressor with the binding hours of regulating described first blade and the ratio of release time.
12, compressor as claimed in claim 11, wherein,
Described first direction recess comprises first closed chamber holding the rear end of described first blade,
The described first blade control gear is regulated the pressure that is applied on described first blade and described pressure is applied to described first closed chamber based on described control signal.
13, compressor as claimed in claim 12, wherein, the described first blade control gear comprises:
First high-voltage tube is connected to described first closed chamber waste side of described compressor;
First low-voltage tube is connected to described first closed chamber suction side of described compressor;
The first mobile channel selector optionally is connected to described first high-voltage tube or first low-voltage tube with described first closed chamber.
14, compressor as claimed in claim 13, wherein, described first channel selector that flows is 3 phase valves by described control signal switch, the binding hours of described first blade and the ratio of release time by adjustment be applied to described 3 mutually the pulse width of the control signal on the valve regulate.
15, compressor as claimed in claim 11, wherein,
Described second direction recess comprises second closed chamber holding the rear end of described second blade,
Described compressor also comprises the second blade control gear, and the described second blade control gear is applied to binding hours and the release time that pressure in described second closed chamber is regulated described second blade based on described control signal by adjusting.
16, compressor as claimed in claim 15, wherein, described first pressing chamber has different compression volumes with described second pressing chamber.
17, a kind of method that changes the capacity of variable capacity rotary compressor, described variable capacity rotary compressor has: housing has pressing chamber; Roller, rotation contacts with the interior perimeter surface of described pressing chamber simultaneously in pressing chamber; Blade is divided into low-pressure section and high-pressure section with the inside of described pressing chamber, moves forward and backward along the radial direction of described pressing chamber with the rotation according to described roller, said method comprising the steps of:
Serviceability according to described indoor unit calculates the air-conditioning load;
Based on the air-conditioning load of described calculating binding hours and the ratio of the release time compression volume of coming to change accordingly described pressing chamber by regulating described blade with the air-conditioning load of described calculating.
18, method as claimed in claim 17, wherein, when described blade was limited, described blade did not contact continuously with the outer surface of described roller,
When described confined blade was released, described blade contacted continuously with the outer surface of described roller.
19, a kind of variable capacity rotary compressor comprises:
Main body forms pressing chamber, has roller in described pressing chamber;
Blade is arranged in the described main body movingly, to move between forward position and position backward;
Controller, produce control signal with according to release time and binding hours controlling described blade, the continuous running that keeps pressing chamber with the compression volume that changes described pressing chamber simultaneously, described blade during described release time described forward the position and position backward between move, described blade remains in backward the position during described binding hours.
20, compressor as claimed in claim 19 also comprises:
The blade control gear, based on the control signal of described generation by discharging described blade from backward position and by regulate the motion of described blade at the described blade of position limit forward.
21, compressor as claimed in claim 19, wherein, described controller produces control signal at predetermined compression time and controls and make binding hours reduce and make and increase release time keep the continuous operation of described compressor simultaneously with the compression volume that increases described pressing chamber in the cycle.
22, compressor as claimed in claim 19, wherein, described controller produces control signal at predetermined compression time and controls and make binding hours increase and make and minimizing release time keep the continuous operation of described compressor simultaneously with the compression volume that reduces described pressing chamber in the cycle.
23, compressor as claimed in claim 19 also comprises:
Second pressing chamber;
Second blade is arranged in described second pressing chamber to move between second forward the position backward, position and second.
24, compressor as claimed in claim 23, wherein, described controller keeps the constant compression volume of described second pressing chamber.
25, compressor as claimed in claim 23, wherein, described controller produces second control signal with according to release time and binding hours controlling described second blade, the continuous running that keeps pressing chamber with the compression volume that changes described second pressing chamber simultaneously, move between described second forward the position backward, position and second at described second blade during described release time, described second blade remains on second backward the position during described binding hours.
26, compressor as claimed in claim 19 also comprises:
The second blade control gear, based on the control signal that produces by discharging described second blade from described position backward and by second vane limits is regulated the motion of described second blade described position backward.
27, compressor as claimed in claim 19, wherein, described controller is controlled zero load operation and corresponding described release time and the binding hours of squeeze operation with described pressing chamber, does not stop the operation of described compressor so that described compression volume changes.
28, a kind of method that changes the compression volume of variable capacity rotary compressor, described variable capacity rotary compressor comprises: main body, form pressing chamber, in described pressing chamber, have roller; Blade is arranged in the described main body movingly, and to move between forward position and position backward, described method comprises:
Control release time and binding hours keep described compressor simultaneously with the compression volume that changes described pressing chamber continuous running, during described release time, blade moves between forward position and position backward, and during described binding hours, blade remains in backward the position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060033306 | 2006-04-12 | ||
| KR1020060033306A KR20070101896A (en) | 2006-04-12 | 2006-04-12 | Variable capacity rotary compressor and method for varying capacity thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101054977A true CN101054977A (en) | 2007-10-17 |
Family
ID=38605008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100787784A Pending CN101054977A (en) | 2006-04-12 | 2007-02-27 | Variable capacity rotary compressor and method of varying capacity thereof |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20070243079A1 (en) |
| KR (1) | KR20070101896A (en) |
| CN (1) | CN101054977A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101684798A (en) * | 2008-09-22 | 2010-03-31 | 三星电子株式会社 | Rotary compressor |
| CN102132045A (en) * | 2008-08-05 | 2011-07-20 | Lg电子株式会社 | Rotary compressor |
| CN102454606A (en) * | 2010-10-16 | 2012-05-16 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN102454607A (en) * | 2010-10-20 | 2012-05-16 | 广东美芝制冷设备有限公司 | Variable-volume rotary compressor |
| US8651841B2 (en) | 2008-08-05 | 2014-02-18 | Lg Electronics Inc. | Rotary compressor with improved connection |
| CN103620224A (en) * | 2011-06-07 | 2014-03-05 | 松下电器产业株式会社 | Rotary compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102330687B (en) * | 2011-05-25 | 2014-06-04 | 宁波奥克斯电气有限公司 | Method for controlling compressor load during normal operation of screw type compression multi-split air conditioner |
| JP2014070596A (en) * | 2012-09-28 | 2014-04-21 | Fujitsu General Ltd | Rotary compressor |
| KR102148716B1 (en) * | 2014-01-23 | 2020-08-27 | 삼성전자주식회사 | The freezing apparatus and compressor |
| CN114183357B (en) * | 2021-12-16 | 2022-11-11 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity compressor assembly, air conditioner and control method of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI363137B (en) * | 2004-07-08 | 2012-05-01 | Sanyo Electric Co | Compression system, multicylinder rotary compressor, and refrigeration apparatus using the same |
-
2006
- 2006-04-12 KR KR1020060033306A patent/KR20070101896A/en not_active Application Discontinuation
-
2007
- 2007-02-01 US US11/700,816 patent/US20070243079A1/en not_active Abandoned
- 2007-02-27 CN CNA2007100787784A patent/CN101054977A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132045A (en) * | 2008-08-05 | 2011-07-20 | Lg电子株式会社 | Rotary compressor |
| US8517702B2 (en) | 2008-08-05 | 2013-08-27 | Lg Electronics Inc. | Rotary compressor with enhanced sealing between mode switching device and chamber thereof |
| US8651841B2 (en) | 2008-08-05 | 2014-02-18 | Lg Electronics Inc. | Rotary compressor with improved connection |
| CN102124229B (en) * | 2008-08-05 | 2014-03-26 | Lg电子株式会社 | Rotary compressor |
| CN101684798A (en) * | 2008-09-22 | 2010-03-31 | 三星电子株式会社 | Rotary compressor |
| CN102454606A (en) * | 2010-10-16 | 2012-05-16 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN102454607A (en) * | 2010-10-20 | 2012-05-16 | 广东美芝制冷设备有限公司 | Variable-volume rotary compressor |
| CN103620224A (en) * | 2011-06-07 | 2014-03-05 | 松下电器产业株式会社 | Rotary compressor |
| CN103620224B (en) * | 2011-06-07 | 2016-01-20 | 松下电器产业株式会社 | Rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070101896A (en) | 2007-10-18 |
| US20070243079A1 (en) | 2007-10-18 |
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