WO2006112100A1 - 圧縮機 - Google Patents
圧縮機 Download PDFInfo
- Publication number
- WO2006112100A1 WO2006112100A1 PCT/JP2006/301049 JP2006301049W WO2006112100A1 WO 2006112100 A1 WO2006112100 A1 WO 2006112100A1 JP 2006301049 W JP2006301049 W JP 2006301049W WO 2006112100 A1 WO2006112100 A1 WO 2006112100A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compressor
- compression chamber
- working fluid
- discharge hole
- hydraulic diameter
- Prior art date
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Classifications
-
- 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
- F04C28/28—Safety arrangements; Monitoring
-
- 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
-
- 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
-
- 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
- F04C2240/80—Other components
- F04C2240/806—Pipes for fluids; Fittings therefor
Definitions
- the present invention relates to a compressor used in a refrigeration apparatus, an air conditioner, and the like.
- FIG. 6 is a longitudinal sectional view of a conventional rotary compressor.
- the rotary compressor shown in FIG. 6 includes a container 1, a compression mechanism section, and an electric motor section.
- the compression mechanism section includes a shaft 2 having an eccentric portion 2a, a cylinder 3, a roller 4, a vane 5, a panel 6, an upper bearing member 7 having a discharge hole 7a, and a lower bearing member 8.
- the electric motor unit includes a stator 11 and a rotor 12 fixed to the shaft 2.
- the container 1 includes a suction pipe 19 connected to the suction hole 3 a and a discharge pipe 20. The operation of the rotary compressor having the above configuration will be described.
- the roller 4 When the motor unit rotates, the roller 4 performs an eccentric rotational movement by the eccentric part 2a, and the working fluid is sucked from the suction pipe 19 and the suction hole 3a and compressed in the compression chamber 9.
- the compressed working fluid is ejected into the lower space 22 through the discharge hole 7a.
- the working fluid ejected into the lower space 22 passes through the notch lie and the gap 13, and is discharged through the upper space 23 by the discharge pipe 20.
- the above rotary compressor and swing compressor are installed in systems such as refrigeration equipment, air conditioners, and water heaters, and are used in various atmospheres. For example, in a system that has been stopped for a long time (sleeping state) in a low-temperature environment, some of the working fluid of the condenser (gas cooler), evaporator, and compressor that make up the refrigeration cycle is in the liquid phase. ! / Speak.
- the liquid-phase working fluid accumulated in the refrigeration cycle is sucked into the compression chamber 9.
- the liquid-phase working fluid is an incompressible fluid.
- the slight pressure in the compression chamber 9 increases the internal pressure of the compression chamber 9 to the discharge side pressure, and discharge A discharge valve (not shown) provided at the discharge side end of the hole 7a is pushed up, and discharged into the lower space 22 with substantially the same volume as that during suction. Therefore, compared with the case of compressing a compressible gas-phase working fluid, a liquid-phase working fluid having a large volume and density is discharged from the discharge hole 7a, and a large pressure loss is generated in the discharge hole 7a.
- the refrigerating machine oil supplied between the sliding parts forms an oil film that produces fluid lubrication effects that avoid boundary lubrication and seizure of the sliding parts. Devour.
- the load applied to the roller 4 greatly exceeds the load applied during normal operation, so the oil film at each sliding part becomes thin and fluid lubrication cannot be maintained. As a result, mixed lubrication and boundary lubrication of the sliding part occur, causing damage such as abnormal wear and seizure.
- rotary compressors and swing compressors that have a small cylinder volume Vc in the compression chamber 9 and that are driven by an electric motor require less torque during normal operation than large compressors, so that If liquid-phase working fluid enters the compression chamber 9, the starting torque may be insufficient, making it difficult to start.
- the conventional rotary compressor and swing compressor require a mechanism that does not suck the liquid-phase working fluid into the compression chamber 9.
- a configuration for preventing the compressor from sucking the liquid-phase working fluid for example, as disclosed in Non-Patent Document 2, there is a method of connecting an accumulator to the suction pipe of the compressor.
- Figure 7 shows a longitudinal section of the accumulator.
- the accumulator includes the sealed container 101, the introduction pipe 102 that connects the system side and the inner space of the sealed container 101, the inner space of the sealed container 101, and the suction pipe of the compressor. It consists of a U-shaped suction pipe 103 to be connected.
- the suction pipe 103 includes an oil return hole 104 at the bottom of the U-shape, and a balance communication hole 105 provided near the joint between the suction pipe 103 and the sealed container 101 inside the sealed container 101.
- the working fluid that also returns the refrigeration cycle force enters the accumulator closed container 101 from the introduction pipe 102 and enters the closed container 101. Separated into gas phase and liquid phase. Then, it is guided to the suction pipe 19 of the gas-phase working fluid force compressor separated by the U-shaped suction pipe 103 at the upper part of the hermetic container 101. Further, the refrigeration oil separated together with the liquid-phase working fluid inside the sealed container 101 is collected at the bottom of the sealed container 101, and an appropriate amount is sucked from the oil return hole 104 and returned to the compressor. Further, the balance communication hole 105 allows the liquid-phase working fluid separated in the closed vessel 101 to flow into the compressor from the filter return hole 104 as the pressure on the refrigeration cycle increases when the compressor is stopped. To prevent.
- Non-Patent Document 1 Refrigeration and Air Conditioning Handbook, New Edition, 5th Edition, II II Equipment, Japan Refrigeration Association, 1993, pp. 30-37
- Non-Patent Document 2 ⁇ Sealed Refrigerator, 2nd printing '', Yoshiyoshi Kawahira, Japan Refrigeration Association, 1993, pp. 150-151
- This abnormal increase in the internal pressure of the compression chamber 9 acts as a large load that presses the roller 4 against the shaft 2 toward the compression chamber 9 in the suction process, so that the shaft 2, the upper bearing member 7, the shaft 2, and the lower bearing This causes a film breakage of the refrigerating machine oil that lubricates between the members 8 and causes the sliding part to be in a boundary lubrication state. If the boundary lubrication state of this sliding part is repeated, damage such as abnormal wear and seizure may occur and reliability may be impaired. there were.
- rotary compressors and swing compressors with a small cylinder volume Vc in the compression chamber which are driven by an electric motor, require less torque during normal operation than a large compressor. If a liquid-phase working fluid intrudes into the chamber and an overload occurs due to an abnormal increase in pressure, the startup torque of the motor may be insufficient, making it difficult to start.
- an accumulator shown in Fig. 7 is used as a method for preventing liquid-phase working fluid from being sucked into the rotary compressor.
- the manufacturing cost increases, and it is necessary to secure a space for installing the accumulator. Therefore, it is difficult to incorporate the heat pump system into a small product.
- the refrigerating machine oil accumulated in the accumulator could cause insufficient lubrication of the sliding part of the rotary compressor.
- the discharge hole 7a is a non-compressible space (dead volume) communicating with the compression chamber 9, and the working fluid once compressed and confined in the discharge hole 7a is re-expanded into the compression chamber 9 and In order to reduce the efficiency, it was difficult to design the discharge hole 7a large enough to allow the liquid-phase working fluid to pass through easily.
- the present invention prevents the sliding of the oil film at the sliding portion by suppressing the increase in the internal pressure of the compression chamber even when the liquid-phase working fluid is sucked into the compression chamber. For the purpose of providing possible compressors! Speak.
- a compressor includes a compression chamber in which a working fluid is compressed by rotation of a roller in the cylinder, a suction hole for sucking the working fluid into the compression chamber, and a working fluid from the compression chamber.
- a compressor having at least a discharge hole for discharging the hydraulic diameter De (m) of the discharge hole, the hydraulic diameter De, the suction cylinder volume Vc (m 3 ) of the compression chamber, and a drive for driving the compressor.
- the dimensions satisfy the following formula (1), which is the relational expression with the frequency f (Hz),
- the working fluid is diacid carbon.
- the conventional compressor 2 6 ⁇ / 3 ; [Water diameter 06 is very large compared to about 1/4 .
- the flow velocity when the liquid-phase working fluid passes through the discharge hole is greatly reduced. Since the pressure loss of the working fluid passing through the discharge hole is proportional to the square of the flow velocity, the pressure loss becomes very small as the flow velocity decreases.
- the refrigeration cycle using carbon dioxide as the working fluid is used in cycles where the pressure on the high pressure side exceeds the critical pressure, and the density ratio of carbon dioxide before and after compression is approximately 1.5, which is the conventional working fluid Rl
- the density ratio of 34a is smaller than 3.5.
- the hydraulic diameter De of the discharge hole is larger than before.
- the density of carbon dioxide and carbon dioxide sucked into the compression chamber is approximately 8 times that of R134a, which is a conventional working fluid, so carbon dioxide that exhibits the same capability as a compressor using Rl34a as the working fluid.
- the cylinder volume of a compressor that uses as a working fluid is reduced. As a result, the hydraulic diameter of the discharge hole becomes relatively small, and it becomes possible to divert the discharge nozzle and the car- rying machine used in the conventional compressor, thereby realizing low cost.
- the liquid phase diacid-carbon when compressed, it becomes a supercritical gas when the critical pressure is exceeded, and has the properties of a compressible gas. Therefore, the abnormal pressure rise in the compression chamber can be mitigated as compared with Freon compressed from the liquid phase to the liquid phase.
- the compressor according to the second invention is the compressor according to the first invention, wherein the hydraulic diameter Di (m) of the suction hole is smaller than the hydraulic diameter De of the discharge hole.
- the internal pressure of the compression chamber rises abnormally during the compression Z discharge process. Can be relaxed.
- a compressor according to a third aspect of the present invention is the compressor according to the first aspect of the present invention, comprising an electric motor as a driving power source, and an intake cylinder volume Vc (m 3 ) of a compression chamber driven by the electric motor is set to 0.8. 1.
- Vc (m 3 ) of a compression chamber driven by the electric motor is set to 0.8. 1.
- X 10- 6 (m 3) is obtained by a range of 5 X 10- 6 (m 3) .
- the pressure loss generated in the discharge hole when the liquid-phase working fluid is compressed is small, and the suction cylinder volume Vc (m 3 ) of the compression chamber is set to 0.8 X 10— for the range of 6 (m 3) force al 1. 5 X 10- 6 (m 3), the starting torque shortage after stagnation which becomes a problem in a small electric compressor is eliminated.
- the compressor according to the fourth invention is the compressor according to any one of the first to third inventions, and the upper limit of the hydraulic diameter De (m) of the discharge hole is compressed with the hydraulic diameter De.
- the dimensions satisfy the following formula (2), which is a relational expression between the chamber intake cylinder volume Vc (m 3 ) and the drive frequency f (Hz) for driving the compressor.
- the hydraulic diameter De of the discharge hole is the lower limit of the formula (1) 6.6 X Vc 2/3 X f 1/4
- the hydraulic diameter De of the discharge hole when the hydraulic diameter De of the discharge hole satisfies the above mathematical formula (1), the hydraulic diameter De of the discharge hole becomes larger than that of the conventional compressor, and thus passes through the discharge hole.
- the flow rate of the working fluid decreases and the pressure loss becomes very small. That is, it is possible to prevent an abnormal increase in internal pressure that occurs in the compression chamber when the liquid-phase working fluid is sucked into the compression chamber. Therefore, it becomes possible to hold the oil film between the shaft and the upper bearing member, and between the shaft and the lower bearing member, and the reliability of the bearing can be maintained.
- FIG. 1 is a longitudinal sectional view of a compressor according to an embodiment of the present invention.
- FIG.2 Cross-sectional view of the compressor shown in Fig. 1 along the line ZZ
- FIG. 3 is a graph showing the relationship between the compressor function DeZ (Vc 2 3 X f 1 4 ) and the oil film thickness parameter ⁇ of the lower bearing member in the present embodiment.
- FIG. 4 is a graph showing the relationship between the compressor function De / (Vc 2 3 X f 1 4 ) and the compression work and re-expansion loss in this embodiment.
- the compressor according to the embodiment of the present invention is a rotary compressor, and has substantially the same configuration as the conventional single compressor described in FIG. Therefore, the same symbols are applied to the same functional parts.
- FIG. 1 is a longitudinal sectional view of a compressor according to an embodiment of the present invention
- FIG. 2 is a transverse sectional view of the compressor shown in FIG.
- the compressor according to the present embodiment includes a container 1, a compression mechanism section disposed at a lower portion in the container 1, and an electric motor section disposed at an upper portion thereof.
- the compression mechanism section is rotatable about the rotation center axis L and includes a shaft 2 having an eccentric portion 2a, a cylinder 3, a roller 4, a vane 5, a panel 6, a suction hole 3a, and a discharge hole 7a.
- An upper bearing member 7 and a lower bearing member 8 are provided.
- a space between the cylinder 3 and the roller 4 sandwiched between the upper bearing member 7 and the lower bearing member 8 is divided into two compression chambers 9 and 10 by a vane 5.
- the electric motor unit includes a stator 11 having a coil end 11c and a coil end id, and fixed to the inside of the container 1, and a rotor 12 fixed to the shaft 2. Further, a plurality of notches ie as working fluid flow paths are provided on the outer peripheral side of the stator 11, and a gap 13 is provided between the stator 11 and the rotor 12. Further, a lower balance weight 14 and an upper balance weight 15 for canceling the unbalance are provided on the lower end surface 12a and the upper end surface 12b of the rotor 12.
- the container 1 includes an introduction terminal 18, a suction pipe 19 that communicates with the suction hole 3a, a discharge pipe 20, and an oil reservoir 21 that is provided in the lower part inside the container 1 and stores refrigerating machine oil. It is done.
- the characteristic configuration of the compressor according to the present embodiment uses hydraulic acid in the discharge hole 7a by using carbon dioxide as the working fluid.
- the relationship between the diameter De (m), the suction cylinder volume Vc (m 3 ) of the compression chamber, and the drive frequency f (Hz) for driving the compressor satisfies the formulas (1) and (2).
- the drive frequency f (Hz) represents the number of cycles of the suction Z compression Z discharge process per unit time, and the drive frequency f when calculating the hydraulic diameter De is the rated frequency.
- the drive frequency f is about 50Hz to about 60Hz, which is the frequency of commercial power.
- the hydraulic diameter Di of the suction hole 3a, and the point to be smaller than the hydraulic diameter De of the ejection holes 7a, the compression chamber suction cylinder volume Vc of the (m 3), 0.8X10- from 6 (m 3) 1. is characterized in that in the range of 5 X 10- 6 (m 3) .
- FIG. 3 is a graph showing the relationship between the compressor function DeZ (Vc 2/3 Xf 1/4 ) and the oil film thickness parameter ⁇ of the lower bearing member in the present embodiment. That is, when the compressor compresses the liquid working fluid, a function DeZ (Vc 2/3 Xf) of the hydraulic diameter De of the discharge hole 7a, the suction cylinder volume Vc of the compression chamber, and the driving frequency f for driving the compressor. 1/4 ) and the oil film thickness parameter ⁇ of the lower bearing member 8.
- Equation (3) the function DeZ (Vc 2/3 Xf 1/4 ) is derived based on the equation (3) representing the pressure loss in the discharge hole 7a, and the function De / (Vc If 23 X f 14 ) are equal, the oil film thickness at the bearing member is equal.
- ⁇ is the friction coefficient
- 1 is the length of the discharge hole 7a (m)
- ⁇ is the inlet pressure loss coefficient
- ⁇ is the outlet pressure loss coefficient
- ⁇ the working fluid density (kgZm 2 )
- V the flow velocity (mZs) when passing through the discharge hole 7a
- Equation (3) In the process of deriving the function De / (Vc 23 X f 1/4 ), the oil film thickness is the load (pressure) It incorporates the following three concepts: a positive correlation with the reciprocal number, equal oil film thickness when the load Z drive frequency is constant, and that the pressure receiving area is proportional to the 2Z3 power of the cylinder volume ratio. Further, regarding the length 1 of the discharge hole 7a, it is considered that the parentheses on the right side of the formula (3) are constant, assuming that the shape of the discharge hole changes in a similar manner. For the working fluid density ⁇ , lOOOkg / m 3 , which is the density of the liquid phase working fluid, is entered.
- the oil film thickness parameter ⁇ is a function of the combined roughness of the two sliding surfaces divided by the minimum thickness of the oil film formed on the sliding part.
- the sliding part is in direct contact with ⁇ 1.
- the minimum oil film thickness is obtained by fluid lubrication analysis.
- the hydraulic diameter De of the discharge hole 7a is set to a dimension of 6.6X (Vc 2 3 Xf 1 4 ) or more.
- FIG. 4 is a graph showing the relationship between the compressor function DeZ (Vc 2/3 Xf 1/4 ), compression work and reexpansion loss in the present embodiment. That is, assuming that the working fluid is carbon dioxide, the function De / (Vc 2/3 Xf 1/4 ), the compression work acting on the working fluid discharged from the compressor when the gas-phase working fluid is compressed, and the discharge 7 is a graph showing the relationship between the re-expansion loss acting on the working fluid re-expanded from the dead volume of the hole 7a to the compression chamber and the input that is the sum of them.
- FIG. 5 is a partially enlarged view of the graph shown in FIG.
- Each work is normalized by the input when a compressor with a function De / (Vc 2/3 Xf 1/4 ) of 6.6 is operated. That is, the input at the point where the De / (Vc 2/3 Xf 1/4 ) value is 6.6 is represented as the reference “1”.
- the points in the graph are experimental data, and the curve is an approximate curve obtained from the experimental data.
- the working fluid is sucked from the suction pipe 19 and the suction hole 3a having a hydraulic diameter Di, and is compressed in the compression chambers 9 and 10, so that the working fluid has a higher density and a smaller volume than that at the time of suction.
- the compressed working fluid is ejected into the lower space 22 of the electric motor section through the discharge hole 7a having a hydraulic diameter De.
- the working fluid ejected into the lower space 22 passes through the notch lie and the gap 13 and is ejected into the upper space 23 of the motor unit. Then, the working fluid is discharged from the discharge pipe 20.
- De / (Vc 2/3 X f 1/4 ) is set to 6.6 or more, so that the fluid lubrication state can be maintained. Further, since the lubrication state of the lower bearing member 8 is stricter than that of the upper bearing member 7, the upper bearing member 7 can also maintain the fluid lubrication state by satisfying the formula (1).
- each sliding part between the shaft 2 and the upper bearing member 7 and between the shaft 2 and the lower bearing member 8 is in a fluid lubrication state, so that seizure and abnormal wear can be prevented and reliability is maintained. can do.
- the pressure loss becomes very small due to the decrease in the flow velocity the increase in the internal pressure of the compression chamber is suppressed even when liquid compression is performed, and the load applied to the sliding portion and the like is reduced. In other words, it is possible to suppress overload due to liquid compression at the time of startup.
- the working fluid is diacid-carbon, so that the density ratio of carbon dioxide before and after compression (approximately 1.5) is Rl that is the conventional working fluid. Smaller than the density ratio of 34a (approximately 3.5). For this reason, since the influence when the working fluid confined in the discharge hole 7a, which is a dead volume, is re-expanded into the compression chamber is reduced, the hydraulic diameter De of the discharge hole 7a is increased as compared with the conventional case. This prevents performance degradation due to increased dead volume.
- the density of carbon dioxide inhaled into the compression chamber is approximately 8 times that of R134a, which is the conventional working fluid. Becomes smaller. Therefore, the hydraulic diameter De of the discharge hole 7a becomes relatively small, that is, the discharge valve (not shown) and the discharge hole used in the conventional compressor that do not need to increase the hydraulic diameter De. Can be used.
- carbon dioxide in the liquid phase is compressed, it becomes a supercritical gas when the critical pressure is exceeded and assumes the properties of a compressible gas. For this reason, the abnormal pressure rise in the compression chamber can be mitigated as compared with chlorofluorocarbon compressed from the liquid phase to the liquid phase.
- the working fluid with a diacid I ⁇ arsenide, the suction cylinder volume Vc (m 3) of the hydraulic diameter De (m) and the compression chamber of the discharge hole 7a and the compressor drive The relationship with the drive frequency f (Hz) for the above satisfies Equation (1) and Equation (2).
- the hydraulic diameter De (m) of the discharge hole 7a is based on the relationship between the compression work based on the pressure loss at the discharge hole 7a shown in FIGS. 4 and 5 and the re-expansion loss at the discharge hole 7a.
- the compressor efficiency is the highest.
- the relationship between the hydraulic diameter De (m) of the discharge hole 7a and the suction cylinder volume Vc (m 3 ) of the compression chamber satisfies the formula (4). Assures reliability when suctioning into the compression chamber and high efficiency of the compressor.
- the rotary compressor is described as an example in the present embodiment, the difference between the rotary compressor and the swing compressor is that the roller 4 and the vane 5 of the rotary compressor are integrated with a swing compressor. Since the structure is the same and the other structure is substantially the same, a similar effect can be obtained even with a swing compressor.
- the present invention is applied to a compressor, and is suitable as a compressor used in a refrigeration cycle such as a refrigerator-freezer, an air conditioner, a water heater, and a car air conditioner.
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006519697A JP3887649B2 (ja) | 2005-03-30 | 2006-01-24 | 圧縮機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005-098244 | 2005-03-30 | ||
JP2005098244 | 2005-03-30 |
Publications (1)
Publication Number | Publication Date |
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WO2006112100A1 true WO2006112100A1 (ja) | 2006-10-26 |
Family
ID=37114842
Family Applications (1)
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PCT/JP2006/301049 WO2006112100A1 (ja) | 2005-03-30 | 2006-01-24 | 圧縮機 |
Country Status (2)
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JP (1) | JP3887649B2 (ja) |
WO (1) | WO2006112100A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106351844A (zh) * | 2015-07-23 | 2017-01-25 | 重庆凌达压缩机有限公司 | 卧式压缩机及其进气法兰总成 |
EP3312424A1 (en) * | 2016-10-19 | 2018-04-25 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Sealed rotary compressor |
CN112145418A (zh) * | 2019-06-28 | 2020-12-29 | 广东美芝制冷设备有限公司 | 旋转式压缩机和冷冻循环装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004317073A (ja) * | 2003-04-18 | 2004-11-11 | Sanyo Electric Co Ltd | 冷媒サイクル装置 |
JP2004346741A (ja) * | 2003-05-19 | 2004-12-09 | Matsushita Electric Ind Co Ltd | 圧縮機 |
-
2006
- 2006-01-24 JP JP2006519697A patent/JP3887649B2/ja not_active Expired - Fee Related
- 2006-01-24 WO PCT/JP2006/301049 patent/WO2006112100A1/ja not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004317073A (ja) * | 2003-04-18 | 2004-11-11 | Sanyo Electric Co Ltd | 冷媒サイクル装置 |
JP2004346741A (ja) * | 2003-05-19 | 2004-12-09 | Matsushita Electric Ind Co Ltd | 圧縮機 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106351844A (zh) * | 2015-07-23 | 2017-01-25 | 重庆凌达压缩机有限公司 | 卧式压缩机及其进气法兰总成 |
EP3312424A1 (en) * | 2016-10-19 | 2018-04-25 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Sealed rotary compressor |
CN112145418A (zh) * | 2019-06-28 | 2020-12-29 | 广东美芝制冷设备有限公司 | 旋转式压缩机和冷冻循环装置 |
Also Published As
Publication number | Publication date |
---|---|
JP3887649B2 (ja) | 2007-02-28 |
JPWO2006112100A1 (ja) | 2009-01-22 |
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