WO2011045928A1 - 圧縮機 - Google Patents
圧縮機 Download PDFInfo
- Publication number
- WO2011045928A1 WO2011045928A1 PCT/JP2010/006090 JP2010006090W WO2011045928A1 WO 2011045928 A1 WO2011045928 A1 WO 2011045928A1 JP 2010006090 W JP2010006090 W JP 2010006090W WO 2011045928 A1 WO2011045928 A1 WO 2011045928A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- shaft
- peripheral wall
- hole
- rotor
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 108
- 238000007906 compression Methods 0.000 claims abstract description 54
- 230000006835 compression Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000000926 separation method Methods 0.000 claims description 53
- 239000012530 fluid Substances 0.000 claims description 39
- 238000004080 punching Methods 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000003507 refrigerant Substances 0.000 description 58
- 230000000694 effects Effects 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
-
- 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
- F04C2240/807—Balance weight, counterweight
Definitions
- the present invention relates to a compressor that separates oil from a working fluid internally, and is used in, for example, an air conditioner, a heat pump water heater, a heat pump heater, a refrigerator, a car air conditioner, and the like.
- Patent Document 1 describes a compressor 500 as shown in FIG.
- the compressor 500 is disposed at a lower position in the sealed container 501, and has a compression mechanism 503 that discharges a working fluid to an internal space of the sealed container 501 through an external pipe 502, and a motor disposed above the compression mechanism 503. 520.
- a discharge pipe 530 is provided through the upper center of the sealed container 501, and an oil separation member 510 is fixed to the upper part of the rotor 521 of the motor 520.
- the oil separation member 510 includes a flat rotating plate 513 and a conical cylindrical body 512 that extends upward while reducing the diameter from the upper surface of the rotating plate 513. That is, the rotating plate 513 and the conical cylinder 512 form a recess having an opening that is narrowed upward and having a smaller opening than the bottom surface, and the working fluid flows into the recess from the opening.
- an inflow port which is an opening below the discharge pipe 530 is located in the recess.
- the splashing oil is centrifuged.
- the oil separated from the working fluid adheres to the inner wall surface of the conical cylinder 512 and is guided to the rotating plate 513 side along the inclination of the inner wall surface. Thereafter, the oil is discharged from the oil discharge port 515 provided at the lower end of the conical cylindrical body 512 to the outside of the conical cylindrical body 512.
- Patent Document 2 describes a compressor 600 as shown in FIG.
- This compressor 600 includes a sealed container 601, a compression mechanism 602, a motor 620, and a discharge pipe 630, similarly to the compressor 500 shown in FIG.
- the oil separation member 610 in the compressor 600 has a dish shape, and includes a bottom wall 617 fixed between the end ring 622 and the balance weight 623 above the rotor 621, and a halfway from the periphery of the bottom wall 617. And a peripheral wall 618 extending upward while expanding in diameter from the middle.
- the inlet of the discharge pipe 630 is located near the bottom wall 617 of the dish-like oil separation member 610.
- the end ring 622 and the bottom wall 617 close the upper end side of the oil supply hole 605 that penetrates the shaft 603 in the axial direction.
- This invention solves the said conventional subject, and aims at providing the compressor which can reduce the quantity of the oil discharged from discharge piping more.
- the present invention includes a sealed container, a compression mechanism that is disposed in the sealed container, compresses a working fluid, and discharges the working fluid into an inner space of the sealed container.
- An oil separating member that is arranged and has a motor that drives the compression mechanism via the shaft, and a peripheral wall and a bottom wall that form a recess that opens in a direction larger than the bottom surface in a direction away from the shaft, and rotates together with the shaft
- a discharge pipe having an inflow port that penetrates the sealed container and opens toward the bottom wall in the recess, and a plurality of oil discharge holes are formed in the peripheral wall of the oil separation member.
- a compressor is provided that is distributed in the circumferential direction and the axial direction of the shaft.
- This configuration induces a working fluid flow having a large velocity component in the rotation direction inside the peripheral wall because the peripheral wall transmits the rotation of the shaft to the inner working fluid. Therefore, the centrifugal force surely acts on the working fluid guided to the inflow port of the discharge pipe disposed inside the peripheral wall and the oil splashes floating in the working fluid. Thereby, oil can collide with the inner wall surface of the surrounding wall located in the outer peripheral side, and oil can be isolate
- the working fluid flowing out from the discharge pipe always passes through the space to which the rotational speed component is given by the rotation of the peripheral wall. Therefore, even fine oil splashes can be reliably separated from the working fluid. Furthermore, oil separated from the working fluid can be efficiently removed from the vicinity of the inlet of the discharge pipe by the oil discharge hole.
- FIG. 1 is a longitudinal sectional view of a compressor 100 according to Embodiment 1 of the present invention.
- 2 is a cross-sectional view taken along the line II-II in FIG.
- FIG. 3 is an exploded view of a part of FIG.
- FIG. 6 is a table showing the effect of reducing the oil discharge amount by the oil separation mechanism 17 ⁇ / b> A employed in the compressor 100.
- a refrigerant is used as the working fluid.
- a compressor 100 includes a sealed container 101, a compression mechanism 120 disposed at a lower position in the sealed container 101, and a motor 130 disposed above the compression mechanism 120 in the sealed container 101.
- the compression mechanism 120 and the motor 130 are connected by a shaft 140 so that power can be transmitted.
- the axial direction of the shaft 140 is a vertical direction, but the axial direction of the shaft 140 may be, for example, a horizontal direction.
- An oil separation mechanism 17 ⁇ / b> A is fixed to the upper end surface of the shaft 140. That is, the oil separation member 17 ⁇ / b> A is located on the opposite side of the compression mechanism 120 with the motor 130 interposed therebetween.
- the oil separation mechanism 17A rotates together with the shaft 140.
- a suction pipe 150 passing through the sealed container 101 in the horizontal direction is fixed to the lower part of the sealed container 101, and a discharge pipe 160 passing through the sealed container 101 in the vertical direction is fixed to the upper part of the sealed container 101.
- the suction pipe 150 is directly connected to the compression mechanism 120.
- the discharge pipe 160 extends along an extension line of the central axis of the shaft 140, and an inflow port which is a lower opening opens into the internal space of the sealed container 101.
- an oil reservoir 180 is formed in the lower portion of the sealed container 101 by storing oil used for lubricating the sliding portion around the compression mechanism 120.
- a driver 103 connected to an external power source 102 and a terminal 105 connected by a power line 104 are attached to the upper part of the sealed container 101 so as to penetrate the sealed container 101.
- the terminal 105 is connected to the motor 130 via the power line 106.
- the compression mechanism 120 compresses the refrigerant and discharges it into the internal space of the sealed container 101.
- a rotary type compression mechanism 120 is employed.
- the compression mechanism 120 includes an upper bearing member 121 fixed to the inner peripheral surface of the sealed container 101 by welding, a cylinder 122 disposed below the upper bearing member 121, and a lower portion of the cylinder 122. And a lower bearing member 123 provided.
- the upper bearing member 121 and the lower bearing member 123 support the shaft 140 rotatably.
- a piston 124 that is rotatably fitted to an eccentric portion 141 provided at the lower portion of the shaft 140 is disposed inside the cylinder 122.
- the cylinder 122 is provided with a vane groove 122a, and a vane 126 is fitted into the vane groove 122a.
- the vane 126 is in contact with the outer peripheral surface of the piston 124 at the tip, and is pressed against the piston 124 by the vane spring 125 from the back.
- the cylinder 122 is provided with a suction path 122 b that connects the suction pipe 150 and the inner space of the cylinder 122.
- the upper bearing member 121 is provided with a discharge path 121 a having one end communicating with the inner space of the cylinder 122 and the other end communicating with a space surrounded by a muffler 127 disposed above the upper bearing member 121.
- a discharge valve 128 and a valve stop 129 are disposed on the muffler 127 side of the discharge path 121a.
- the motor 130 drives the compression mechanism 120 via the shaft 140.
- the motor 130 includes a stator 131 fixed to the inner peripheral surface of the sealed container 101 by welding or the like, and a rotor 132 fixed to the shaft 140 by shrinkage or the like.
- An air gap 133 is provided between the rotor 132 and the stator 131 so that the rotor 132 is not interfered by the stator 131.
- the stator 131 is formed with an upper coil end 131b protruding above the stator core 131a and a lower coil end 131c protruding below the stator core 131a by the power line 106 wound around the stator core 131a. Has been.
- the rotor 132 includes a rotor core 132a, a ring-shaped upper balance weight 132c and lower balance weight 132d fixed to the upper and lower end surfaces of the rotor core 132a, and an upper balance weight 132c and lower balance weight 132d.
- a plurality of caulking members 132b that are caulked and fixed to the core 132a are included.
- the rotor core 132a has a plurality of inner refrigerant channels (corresponding to the rotor channels of the present invention) through a plurality of through holes that penetrate the rotor core 132a in the axial direction of the shaft 140 inside the balance weights 132c and 132d. ) 132e is formed.
- the inner refrigerant flow paths 132e are arranged at equal angular intervals on the same circumference.
- the shaft 140 is provided with an oil supply hole 142 for supplying the oil in the oil reservoir 180 to the compression mechanism 120 so as to penetrate the shaft 140 in the vertical direction on the central axis of the shaft 140. That is, the oil supply hole 142 extends along the central axis of the shaft 140.
- the lower portion of the oil supply hole 142 is a large diameter portion 142a having a large diameter
- the upper portion of the oil supply hole 142 is a small diameter portion 142b having a small diameter.
- An oil splash 147 for pumping up oil is inserted into the large diameter portion 142a of the oil supply hole 142, and an oil splash lid 148 is fixed to the lower side of the oil splash 147 by press-fitting into the large diameter portion 142a.
- the shaft 140 includes an eccentric oil hole 143 that opens from the large-diameter portion 142 a of the oil supply hole 142 to the sliding surface of the eccentric portion 141 and the piston 124, and an outer periphery between the rotor 132 and the upper bearing member 121.
- a gas vent hole 144 extending from the surface to the small diameter portion 142b of the oil supply hole 142 is formed.
- the upper end surface of the shaft 140 is provided with a fastening hole 145 into which a later-described fastening component 172 for fixing the oil separating member 17A to the upper end surface of the shaft is inserted.
- the fastening hole 145 will be described in detail later.
- the oil separation member 17A has a disc-shaped bottom wall 175 facing the upper end surface of the shaft 140, and a perpendicular line extending from the periphery of the bottom wall 175 in the opposite direction (upward) to the shaft 140 and passing through the center of the bottom wall 175.
- a circumferential wall 173 that is rotationally symmetric.
- the central axis of the peripheral wall 173 is located on an extension line of the central axis of the shaft 140.
- the bottom wall 175 and the peripheral wall 173 form a recess 171 that opens in a direction larger than the bottom surface in a direction away from the shaft 140. That is, the bottom surface of the recess 171 is constituted by the top surface of the bottom wall 175.
- the peripheral wall 173 has a tapered shape extending upward while expanding from the periphery of the bottom wall 175, and the opening of the recess 171 is larger than the bottom surface.
- the peripheral wall 173 may have, for example, a cylindrical shape extending in parallel with the axial direction of the shaft 140 from the periphery of the bottom wall 175, and the opening of the recess 171 may be the same size as the bottom surface.
- the oil separation member 17A is provided with a flange portion 176 that projects radially outward from the upper end of the peripheral wall 173 (the end opposite to the bottom wall 173).
- the inlet of the discharge pipe 160 described above is located on the central axis of the peripheral wall 173 and opens toward the bottom wall 175 in the recess 171. It is preferable that the distance from the inlet of the discharge pipe 160 to the bottom wall 175 is 1 ⁇ 2 or less of the height of the peripheral wall 173 in the axial direction of the shaft 140. This is because if the distance is too large, the refrigerant before the oil droplets are completely separated also flows into the inlet of the discharge pipe 160.
- the distance from the inlet of the discharge pipe 160 to the bottom wall 175 is more preferably 1 ⁇ 4 or less of the height of the peripheral wall 173.
- the inner diameter is equal to or larger than the above.
- the peripheral wall 173 is provided with a plurality of oil discharge holes 174 for discharging oil from the inside of the peripheral wall 173 to the outside in a distributed manner in the circumferential direction of the peripheral wall 173 and the axial direction of the shaft 140.
- the oil discharge holes 174 are formed such that an array circle in which a certain number of oil discharge holes 174 are arranged at an equiangular pitch (30 ° pitch in the illustrated example) is aligned in the axial direction of the shaft 140. .
- the arrangement circles are arranged in the same direction in the axial direction of the shaft 140 so that the oil discharge holes 174 are arranged in a radial pattern when viewed from the axial direction of the shaft 140.
- the oil discharge holes 174 may be aligned in the axial direction of the shaft 140 while changing the direction by half of the pitch so that the oil discharge holes 174 are aligned in a staggered manner when viewed from the axial direction of the 140.
- the oil discharge hole 174 can be formed simultaneously with the molding of the oil separation member 17A by pressing a metal plate. At this time, the oil discharge hole 174 is preferably formed by punching in the direction from the inside to the outside of the peripheral wall 173.
- the peripheral wall 173 is expanded in diameter so that the refrigerant discharged from the compression mechanism 120 hits the peripheral wall 173 through the inner refrigerant flow path 132e provided in the rotor of the motor 130 and is guided outward by the peripheral wall 173. It is preferable. That is, the lower end (end part on the bottom wall 175 side) of the peripheral wall 173 is positioned radially inward of the inner refrigerant flow path 132e, and the upper end of the peripheral wall 173 is positioned radially inward of the inner refrigerant flow path 132e. It is preferable.
- the oil discharged to the outside from the oil discharge hole 174 can be guided to the outer peripheral side of the stator 131 by the refrigerant blowing up through the inner refrigerant flow path 132e, and the oil is returned to the oil reservoir 180. Because it becomes smooth.
- a circular through hole 177 centered on the central axis of the peripheral wall 173 is formed at the center of the bottom wall 175.
- the fastening component 172 is a shaft member having a substantially T-shaped cross section, a head portion 172a having a diameter larger than that of the through hole 177, and a positioning portion 172b having a diameter slightly smaller than that of the through hole 177 that is fitted to the through hole 177. And a press-fit portion 172c having a smaller diameter than the positioning portion 172b. These 172a to 172c are all concentric.
- the fastening hole 145 into which the fastening component 172 is inserted has a shape that is recessed in two steps from the upper end surface of the shaft 140, and a relief hole 146 b on the inlet side in which the positioning portion 172 b is loosely fitted, and a press-fit portion It is comprised with the holding hole 146a of the back side into which 172c is press-fit.
- the holding hole 146a is concentric with the central axis of the shaft 140, and has a diameter that is larger than the small-diameter portion 142b of the oil supply hole 142 and slightly smaller than the press-fit portion 172c.
- the escape hole 146b is concentric with the central axis of the shaft 140 and has a larger diameter than the holding hole 146a and the positioning portion 172b. Further, the depth of the escape hole 146b is deeper than the value obtained by subtracting the thickness of the bottom wall 175 from the height of the positioning portion 17b.
- the oil separating member 17A passes the fastening part 172 through the through hole 177 so that the press-fitting part 172c is on the holding hole 146a side, press-fit the press-fitting part 172c into the holding hole 146a, and the upper end surface of the shaft 140 and the head of the fastening part 172
- the bottom wall 175 is sandwiched between the portion 172a and the shaft 140 is fixed to the upper end surface.
- the positioning portion 172b is fitted into the through hole 177 to position the oil separation member 17A with respect to the shaft 140. Further, the positioning portion 172b does not interfere with the shaft 140 by the escape hole 146b.
- the oil volume flow rate is M [m 3 / s]
- the diameter of the oil discharge hole 174 is D [m]
- the number of oil discharge holes 174 is N [pieces]
- all the oil is uniformly distributed in the oil discharge hole.
- the pressure loss P loss [Pa] at the oil discharge hole 174 is expressed by the following expression 3 from the expression of Darcy and Weisbach.
- T Thickness of the peripheral wall [m]
- Equation 3 The tube friction coefficient ⁇ in Equation 3 is obtained from the following Equation 4, and the Reynolds number Re in Equation 4 is obtained from the following Equation 5.
- Equation 5 Kinematic viscosity of oil [m 2 / s]
- Expression 3 can be rewritten as the following Expression 6.
- Equation 7 By the way, since the centrifugal force is smaller as the distance from the rotation axis is smaller, the most severe position is the lower end of the peripheral wall 173. Therefore, by substituting Equation 1 and Equation 6 into Equation 7, using the minimum radius r 0 [m] of the peripheral wall 173 as r in Equation 1, further collecting variables on the left side and numerical values on the right side, Equation 7 becomes The following equation 8 is obtained.
- the inlet of the discharge pipe 160 is preferably as close to the bottom wall 175 as possible.
- the oil film thickness t on the bottom wall 175 needs to be kept small.
- the diameter D of the oil discharge hole 174 needs to be 0.2 mm or more from FIG.
- Two compression chambers (an upper bearing member 121 and a lower bearing member) partitioned by a vane 126 between a piston 124 and a cylinder 122 that are rotatably fitted to the eccentric portion 141 by the eccentric movement of the eccentric portion 141 due to the rotation of the shaft 140.
- the volume of the compression chamber closed from above and below changes. While communicating with the suction path 122b, the state of the compression chamber is in the suction process, and the refrigerant is sucked through the suction pipe 150 and the suction path 122b as the volume of the compression chamber increases due to the rotation of the shaft 140.
- the piston 124 cuts off the communication between the compression chamber and the suction path 122b, and the state of the compression chamber moves to the compression / discharge process.
- the refrigerant is compressed by reducing the volume of the compression chamber due to the rotation of the shaft 140, and when the pressure in the compression chamber reaches the discharge pressure on the muffler 127 side, the discharge valve 128 is opened, and the refrigerant is discharged from the compression chamber through the discharge path 121a.
- the refrigerant is pushed out into the space surrounded by the muffler 127.
- the refrigerant silenced by the muffler 127 is discharged to a lower area of the motor 130.
- Oil is mixed into the refrigerant discharged to the lower region of the motor 130 when passing through the compression chamber.
- the inner space of the sealed container 101 is filled with the pressure (discharge pressure) of the refrigerant discharged from the compression mechanism 120, so that the back space of the vane 126 that opens to the oil reservoir 180, the oil supply hole 142, and the eccentric part oil hole 143.
- oil at the discharge pressure is present inside the piston 124 communicating with the oil reservoir 180 through. That is, the clearance around the vane 126 and the piston 124 toward the compression chamber that is in the suction pressure state lower than the discharge pressure in the suction process and the compression chamber that is in the pressure state between the discharge pressure and the suction pressure in the compression process.
- the refrigerant discharged to the lower region of the motor 130 includes micron-sized oil droplets.
- the refrigerant discharged to the lower region of the motor 130 passes through one of the inner refrigerant channel 132e of the rotor 132, the air gap 133, and the outer refrigerant channel 131d of the stator 131, and is pushed up to the upper region of the motor 130. .
- the refrigerant reaching the upper region of the motor 130 flows into the oil separation member 17A from the opening of the depression 171 toward the inlet of the discharge pipe 160, and after the oil is separated in the depression 171, the refrigerant is discharged from the discharge pipe 160 to the outside. It is discharged into the refrigeration cycle.
- the oil separated from the refrigerant in the recess 171 is discharged from the oil discharge hole 174 to the outside of the oil separation member 17A.
- the oil discharged from the oil discharge hole 174 is discharged further outward in the radial direction above the upper coil end 131b from between the flange 176 and the upper coil end 131b together with the refrigerant blowing up the air gap 133 or the inner refrigerant flow path 132e. Then, the oil returns to the oil sump 180 through the openings provided at appropriate positions around the upper coil end 131b, the outer refrigerant flow path 132e, and the upper bearing member 121.
- the peripheral wall 173 is provided with a plurality of oil discharge holes 174, the oil that has been centrifuged and adhered to the inner wall of the peripheral wall 173 can be discharged from the oil discharge hole 174 to the outside of the peripheral wall 173.
- the separated oil can be discharged to the outside of the peripheral wall 173 from the oil discharge hole 174 different from the opening of the recess 171 into which the refrigerant flows into the inner side of the peripheral wall 173 without using the centrifugal force to counter the flow of the refrigerant.
- the oil can be smoothly discharged from the nearest oil discharge hole 174.
- the thickness of the oil film adhering to the inner wall surface of the peripheral wall 173 can be kept thin, and rewinding from the surface of the oil film due to the flow of the refrigerant can be reduced.
- the peripheral wall 173 is tapered and the inner diameter of the peripheral wall 173 is smaller toward the bottom wall 175, the oil adhering to the inner wall surface of the peripheral wall 173 is caused by the centrifugal force acting on the oil from the vicinity of the discharge pipe 160. It flows on the inner wall surface of the peripheral wall 173 to the upper end of the peripheral wall 173 so as to leave, and is discharged from a plurality of oil discharge holes 174 located in the road before reaching the upper end of the peripheral wall 173.
- the refrigerant with oil droplets passing through the inner refrigerant flow path 132 e of the rotor 132 is short-circuited to the discharge pipe 160 from the side opposite to the opening of the recess 171. Can be prevented. Furthermore, by disposing the inlet of the discharge pipe 160 on the central axis of the peripheral wall 173 and inside the peripheral wall 173, the refrigerant in which the oil droplets are most diluted by the centrifugal separation by the peripheral wall 173 is discharged to the external refrigeration cycle. be able to.
- the fastening part 172 is press-fitted into the upper part of the shaft 140 and the oil separation member 17A is sandwiched, the oil separation member 17A can be fixed to the shaft 140 even with a simple shape that can be easily molded by pressing. Therefore, the oil separation member 17A can be manufactured at a low cost. Furthermore, since the oil separation member 17A can be fixed by a simple assembly in which the fastening part 172 is press-fitted into the shaft 140, it is additionally necessary for the incorporation of the oil separation member 17A compared to assembling a conventional compressor having no oil separation mechanism. Since a short process time is sufficient, an increase in manufacturing cost can be suppressed.
- the holding hole 146a of the fastening hole 145 is concentric with the shaft 140
- the positioning part 172b of the fastening part 172 and the press-fitting part 172c are concentric with each other
- the through hole 177 is formed at the center of the bottom wall 175 of the oil separating member 17A. Since the positioning part 172b of the fastening part 172 is passed through the through hole 177 and the press-fitting part 172c is press-fitted into the holding hole 146a, the shaft center of the oil separating member 17A (the center of the bottom wall 175 and the peripheral wall 173) is provided. Can be easily matched with the central axis of the shaft 140.
- the axis of the oil separation member 17A may be slightly deviated from the central axis of the shaft 140.
- the peripheral wall 173 causes a small eccentric motion, which facilitates the transmission of the speed component in the rotation direction to the refrigerant around the peripheral wall 173, thereby promoting the centrifugal separation.
- the escape hole 146b in the shaft 140 it is possible to prevent interference between the positioning portion 172b and the fastening hole 145 when the fastening component 172 is inserted into the fastening hole 145 of the shaft 140. Therefore, the length of the positioning portion 172b Quality control is not necessary. Thereby, the fastening component 172 can be manufactured at low cost.
- a gas vent hole 144 is provided between the rotor 132 and the upper bearing member 121 so as to penetrate from the oil supply hole 142 to the outer peripheral side of the shaft 140, even if the upper end of the oil supply hole 142 is blocked by the fastening component 172, The discharge pressure can be applied to the interface of the oil supplied from the lower part of the oil supply hole 142. Moreover, even if the refrigerant dissolved in the oil at the time of startup or the like is foamed in the oil supply hole 142, the oil can be secured to the required height of the oil supply hole 142 by discharging the foamed refrigerant from the gas vent hole 144.
- the oil accompanied by the oil splash pushed out from the inner refrigerant flow path 132e of the rotor 132 is mixed with the oil discharged from the oil discharge hole 174, so that many oil splashes are accompanied.
- this refrigerant is guided from the upper end of the peripheral wall 173 to the inside of the peripheral wall 173 along the flow of the refrigerant, the amount of oil to be excluded from the inside of the peripheral wall 173 increases.
- the flange 176 is provided as in the present embodiment, the refrigerant flow outside the peripheral wall 173 can be prevented from short circuiting around the upper end of the peripheral wall 173.
- the oil supplied to the inside of the peripheral wall 173 is roughly separated into oil splashes by the refrigerant flow in the rotational direction in the upper region of the motor 130 due to the rotation of the rotor 132, the upper balance weight 132c, and the oil separation member 17A.
- the oil separation load inside the peripheral wall 173 can be reduced.
- the oil discharge hole 174 is formed by punching in the direction from the inner side to the outer side of the peripheral wall 173, the inner shape of the oil discharge hole 174 gradually decreases from the inner side to the outer side of the peripheral wall 173, On the other hand, the outer shape of the oil discharge hole 174 is in a burred state. For this reason, the oil is easily discharged from the inside to the outside of the peripheral wall 173 through the oil discharge hole 174 from the viewpoint of pressure loss of the fluid. On the contrary, it is not easy for the refrigerant to blow from the outside to the inside of the peripheral wall 173. Absent.
- the oil can be easily discharged from the inside of the peripheral wall 173 while preventing a short circuit of the refrigerant from the outside to the inside of the peripheral wall 173 through the oil discharge hole 174, so that the amount of oil discharged from the discharge pipe 160 can be reduced. Can be reduced.
- the number of oil discharge holes 174 is 70, and the diameter of the oil discharge holes 174 is 0.5 mm. This diameter is a value obtained by taking a safety factor of 2.5 with respect to a diameter (0.2 mm) required to suppress the oil film thickness t on the bottom wall 175 to 0.1 mm or less, which is obtained from FIG. .
- FIG. 7 is a longitudinal sectional view of a compressor 200 according to Embodiment 2 of the present invention. 7, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.
- an oil separation member 17B fixed to the rotor 131 of the motor 130 is employed.
- an annular support portion 178 surrounding the bottom wall 175 is continuously provided on the bottom wall 175. ing.
- the bottom wall 175 and the support portion 178 may be formed of a single metal plate, and the lower end of the peripheral wall 173 may be fixed to the metal plate by welding or the like.
- the support portion 178 is formed with a plurality of through holes 178a through which the caulking member 132b of the rotor 132 of the motor 130 passes. Then, the lower balance weight 132d, the rotor core 132a, the upper balance weight c, and the support portion 278 are sequentially stacked and fixed by a crimping member 132b.
- the support portion 178 has a three-dimensional shape that matches the shape of the upper balance weight 132c. However, the support portion 178 is flat and is between the support portion 178 and the upper balance weight 132c. A spacer that matches the shape of the upper balance weight 132c may be provided.
- the compressor of the present invention is not limited to the compressor in which only the compression mechanism 120 is disposed as a fluid machine in the sealed container 101 as described in the first and second embodiments.
- an expansion mechanism 320 that recovers power from the expanding refrigerant and transmits the recovered power to the shaft 140 may be disposed in the sealed container 101.
- the expansion mechanism 320 includes a sub shaft 330 that is connected to the shaft 140 by a coupler 340, sucks refrigerant from outside through a suction pipe 350 that penetrates the sealed container 101, and passes the expanded refrigerant through the sealed container 101. To the outside through the discharge pipe 360 to be discharged.
- the suction path 122 b is provided in the upper bearing member 121, and the discharge path 121 a is provided in the lower bearing member 123.
- a closing member 310 that closes the discharge chamber 121 b provided in the lower bearing member 123 is disposed below the lower bearing member 123, and a second portion that communicates the discharge chamber 121 b with the lower region of the motor 130.
- the discharge path 121c is provided through the lower bearing member 123, the cylinder 122, and the upper bearing member 121.
- the sealed container 101 shown in FIG. 8 may be divided into two parts so that the compression mechanism 120 and the expansion mechanism 320 are accommodated separately, and these sealed containers may be connected by an oil equalizing pipe and a pressure equalizing pipe.
- a generator may be attached to the auxiliary shaft 330 in the sealed container that accommodates the expansion mechanism 320, and the oil separation member 17A (or 17B) may be fixed to the rotor or the auxiliary shaft 330 of the generator.
- the peripheral wall gives the working fluid a speed component in the rotation direction, and the working fluid discharges the oil separated from the plurality of oil discharge holes provided in the peripheral wall to the outside.
- the effect of efficiently separating the oil from the working fluid is exhibited by the action of preventing the oil droplets from rewinding.
- the motor 130 and the compression mechanism 120 are arranged side by side in the vertical direction. However, even if they are arranged in the horizontal direction, the above effect is not affected. That is, the present invention is not limited to a vertical compressor.
- the compression mechanism is not limited to the rotary type, and various types of compression mechanisms such as scroll, swing, reciprocating, vane rotary, helical, screw, and turbo are used. Can do.
- the oil separation member of the present invention does not necessarily have to be located on the opposite side of the compression mechanism across the motor.
- the motor 130 and the compression mechanism 120 may be disposed upside down, and the oil separation member 17 ⁇ / b> A may be fixed to the end surface of the shaft 140 on the compression mechanism 120 side.
- the gas vent hole 144 may be formed between the compression mechanism 120 and the oil separation member 17A.
- the compressor of the present invention is composed of a high-performance and inexpensive oil separation member, and is useful as a compressor used in a refrigeration cycle such as an air conditioner, a heat pump water heater, a heat pump heater, a refrigerator, or a car air conditioner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
図1は、本発明の実施の形態1に係る圧縮機100の縦断面図である。図2は、図1のII-II線断面図である。図3は、図1の一部を拡大した分解図である。図6は、圧縮機100に採用された油分離機構17Aによる油吐出量減少効果を表す表である。なお、以下では、作動流体として冷媒を用いた例を説明する。
図1において、圧縮機100は、密閉容器101と、密閉容器101内の下側位置に配置された圧縮機構120と、密閉容器101内で圧縮機構120の上方に配設されたモータ130とを備えている。圧縮機構120とモータ130とは、シャフト140によって動力伝達可能に連結されている。本実施形態では、シャフト140の軸方向が鉛直方向になっているが、シャフト140の軸方向は例えば水平方向であってもよい。シャフト140の上端面には、油分離機構17Aが固定されている。すなわち、油分離部材17Aは、モータ130を挟んで圧縮機構120と反対側に位置している。油分離機構17Aは、シャフト140と共に回転する。
ω:回転速度[rad/s]
油の条件:ν=5×10-6[m2/s]、M=4.7×10-7[m3/s]
周壁形状:r0=0.025[m]、θ=0.52[rad](=30[deg])、T=0.001[m]
回転速度:ω=628[rad/s](=100[rps])
次に、圧縮機100の動作を説明する。外部電源102から供給された電力をドライバ103でモータ駆動用の周波数および電圧に調整し、その電力を電力線104とターミナル105を経て電力線106に供給すると、固定子131の固定子コア131aに磁界が発生し、固定子コア131aの磁界変化によって回転子132と固定子131との間に回転トルクが発生する。この回転トルクが回転子132を回転させ、回転子132が固定されたシャフト140も回転運動を開始する。シャフト140の回転による偏心部141の偏心運動により、偏心部141に回転自在に嵌合したピストン124とシリンダ122の間のベーン126で仕切られた2つの圧縮室(上軸受部材121と下軸受部材123とで上下から閉塞された圧縮室)の容積が変化する。吸入経路122bに連通している間は、圧縮室の状態は吸入工程におかれ、シャフト140の回転による圧縮室の容積増加で吸入配管150と吸入経路122bを通じて冷媒を吸引する。更にシャフト140が回転すると、ピストン124によって圧縮室と吸入経路122bとの連通が遮断され、圧縮室の状態は圧縮・吐出工程に移る。圧縮・吐出工程では、シャフト140の回転による圧縮室の容積減少で冷媒が圧縮され、圧縮室内の圧力がマフラー127側の吐出圧力に達すると吐出バルブ128が開いて、吐出経路121aを通じて圧縮室からマフラー127で囲われる空間内へ冷媒が押し出される。マフラー127で消音された冷媒は、モータ130の下方領域に吐出される。
モータ130の上方領域で、シャフト140に固定された油分離部材17Aが回転することにより、モータ130の上方領域の冷媒に回転方向の速度成分が与えられる。これにより、冷媒中に浮遊する、冷媒よりも比重が大きな油の飛沫が密閉容器101の内周面側へと遠心分離される。特に、窪み171内の吐出配管160の近傍の冷媒は、周壁173に囲まれているため回転方向の速度成分が強くなり、冷媒中に浮遊する微細な油飛沫まで遠心分離することができる。さらに、周壁173に複数の油排出孔174を備えるため、遠心分離されて周壁173の内壁に付着した油を、油排出孔174から周壁173の外側へ排出できる。これによって、分離した油を、周壁173の内側へ冷媒が流入する窪み171の開口とは別の油排出孔174から遠心力の利用により冷媒の流れに逆らうこと無く周壁173の外側に排出できる。このため、周壁173の内壁面に油飛沫が衝突すると最寄の油排出孔174からその油をスムーズに排出することができる。これにより、周壁173の内壁面に付着する油膜の厚みを薄く保ち、冷媒の流れによる油膜の表面からの再巻き上げを低減できる。
図7は、本発明の実施の形態2に係る圧縮機200の縦断面図である。図7において、図1および図2と同じ構成要素については、同じ符号を用い、説明を省略する。
本実施形態では、モータ130の回転子131に固定された油分離部材17Bが採用されている。具体的に、油分離部材17Bでは、底壁175に貫通穴177(図3参照)が設けられていない代わりに、底壁175を取り囲む環状の支持部178が底壁175に連続して設けられている。このような油分離部材17Bは、底壁175と支持部178を一枚の金属板で構成し、この金属板に周壁173の下端を溶接などで固定すればよい。
油分離部材17Bの支持部178がカシメ部材132bで回転子132の他の構成要素と共に回転子コア132aにカシメ固定されるので、カシメ部材132bの長さが支持部178の厚みだけ長くなる以外に圧縮機200の他の構成要素の形状を変更する必要が無い。このため、従来の圧縮機に後付が容易であることと、モータ130の製造工程で油分離部材17Bを組み込むことができるため、圧縮機200の組立工程への変更がほぼ無いことで高い油分離性能を安価に付加することができる。
(その他の実施の形態)
Claims (12)
- 密閉容器と、
前記密閉容器内に配置され、作動流体を圧縮して前記密閉容器の内部空間に吐出する圧縮機構と、
前記密閉容器内に配置され、シャフトを介して前記圧縮機構を駆動するモータと、
前記シャフトから離れる向きに底面以上の大きさで開口する窪みを形成する周壁および底壁を有し、前記シャフトと共に回転する油分離部材と、
前記密閉容器を貫通し、前記窪み内で前記底壁に向かって開口する流入口を有する吐出配管と、を備え、
前記油分離部材の周壁には、複数の油排出孔が当該周壁の周方向および前記シャフトの軸方向に分散して設けられている、圧縮機。 - 前記吐出配管の流入口から前記底壁までの距離は、前記シャフトの軸方向における前記周壁の高さの1/2以下である、請求項1に記載の圧縮機。
- 前記油分離部材を前記シャフトの端面に固定する締結部品をさらに備える、請求項1または2に記載の圧縮機。
- 前記底壁の中心には貫通穴が設けられており、
前記締結部品は、前記貫通穴よりも直径の大きな頭部と、前記貫通穴と嵌合する位置決め部と、前記位置決め部よりも直径が小さい圧入部とを有し、
前記シャフトの端面には、前記締結部品が挿入される締結穴が設けられており、この締結穴は、前記圧入部が圧入される保持穴と前記位置決め部が遊嵌する逃がし穴とを含む、請求項3に記載の圧縮機。 - 前記シャフトには、当該シャフトの中心軸に沿って延びる、油を前記圧縮機構へ供給するための給油孔と、前記圧縮機構と前記油分離部材との間で当該シャフトの外周面から前記給油孔に至るガス抜き孔とが形成されている、請求項4に記載の圧縮機。
- 前記モータは、前記シャフトに固定された回転子を有し、前記油分離部材は、前記回転子に固定されている、請求項1または2に記載の圧縮機。
- 前記油分離部材は、前記底壁を取り囲む、前記底壁に連続して設けられた環状の支持部をさらに有し、
前記回転子は、回転子コアと、前記回転子コアの端面に固定されるバランスウェイトと、前記バランスウェイトを前記回転子コアとカシメ固定するカシメ部材とを含み、
前記支持部は、前記カシメ部材によって前記バランスウェイトと共に前記回転子コアとカシメ固定されている、請求項6に記載の圧縮機。 - 前記周壁は、前記底壁の周縁から拡径しながら前記シャフトの軸方向に延びるテーパー状をなしている、請求項1~7のいずれか一項に記載の圧縮機。
- 前記油分離部材は、前記モータを挟んで前記圧縮機構と反対側に位置しており、
前記モータは、前記シャフトに固定された回転子を有し、前記回転子には、当該回転子を前記シャフトの軸方向に貫通する複数の回転子流路が形成されており、
前記周壁は、前記圧縮機構から吐出された作動流体が前記複数の回転子流路を通じて当該周壁に当たり、当該周壁によって外向きにガイドされるように拡径している、請求項8に記載の圧縮機。 - 前記複数の油排出孔は、前記周壁の内側から外側への方向の打ち抜きにより形成されたものである、請求項8または9に記載の圧縮機。
- 前記油分離部材は、前記周壁の前記底壁と反対側の端部から径方向外側に張り出す鍔部をさらに有する、請求項1~10のいずれか一項に記載の圧縮機。
- 前記複数の油排出孔は、当該油排出孔が等角度ピッチで配列された配列円が前記シャフトの軸方向に並ぶように形成されている、請求項1~11のいずれか一項に記載の圧縮機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011536039A JP5647989B2 (ja) | 2009-10-14 | 2010-10-13 | 圧縮機 |
CN201080045588.2A CN102575676B (zh) | 2009-10-14 | 2010-10-13 | 压缩机 |
US13/499,120 US8801397B2 (en) | 2009-10-14 | 2010-10-13 | Compressor |
EP10823196.0A EP2489879A4 (en) | 2009-10-14 | 2010-10-13 | COMPRESSOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-236930 | 2009-10-14 | ||
JP2009236930 | 2009-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011045928A1 true WO2011045928A1 (ja) | 2011-04-21 |
Family
ID=43875984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/006090 WO2011045928A1 (ja) | 2009-10-14 | 2010-10-13 | 圧縮機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8801397B2 (ja) |
EP (1) | EP2489879A4 (ja) |
JP (1) | JP5647989B2 (ja) |
CN (1) | CN102575676B (ja) |
WO (1) | WO2011045928A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015029603A1 (ja) * | 2013-08-29 | 2015-03-05 | 東芝キヤリア株式会社 | 密閉型圧縮機および冷凍サイクル装置 |
TWI575160B (zh) * | 2013-12-04 | 2017-03-21 | 三菱電機股份有限公司 | 渦旋壓縮機 |
AU2012248069B2 (en) * | 2011-04-26 | 2017-04-20 | 1783590 Ontario Ltd. D/B/A Inmotive | Key pulley segment features, segment stack configuration, and cam and roller design and actuation in a synchronized segmentally interchanging pulley transmission system |
EP2644894A3 (en) * | 2012-03-27 | 2017-04-26 | Fujitsu General Limited | Rotary compressor |
JP2020176558A (ja) * | 2019-04-18 | 2020-10-29 | 三菱重工サーマルシステムズ株式会社 | ロータリ圧縮機 |
WO2022048110A1 (zh) * | 2020-09-04 | 2022-03-10 | 松下·万宝(广州)压缩机有限公司 | 一种压缩机及其带固线组件的挡油机构 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ2014195A3 (cs) * | 2013-04-17 | 2015-08-19 | Mitsubishi Electric Corporation | Chladicí kompresor |
JP5561421B1 (ja) | 2013-09-06 | 2014-07-30 | 株式会社富士通ゼネラル | ロータリ圧縮機 |
CN104712530B (zh) * | 2013-12-12 | 2019-06-25 | 珠海格力电器股份有限公司 | 压缩机 |
JP6297168B2 (ja) * | 2014-11-25 | 2018-03-20 | 三菱電機株式会社 | 圧縮機 |
CN105201846B (zh) * | 2015-10-23 | 2017-08-25 | 广东美芝制冷设备有限公司 | 旋转式压缩机 |
CN105971849A (zh) * | 2016-06-27 | 2016-09-28 | 重庆赋昇汽车零部件有限公司 | 压缩机油分离装置 |
CN106121971A (zh) * | 2016-08-29 | 2016-11-16 | 珠海凌达压缩机有限公司 | 一种压缩机及其挡油装置 |
CN106640661B (zh) * | 2016-10-26 | 2019-04-05 | 广东美芝制冷设备有限公司 | 旋转压缩机及具有其的制冷装置 |
US11136980B2 (en) * | 2017-02-09 | 2021-10-05 | Daikin Industries, Ltd. | Compressor |
KR102124489B1 (ko) * | 2018-10-12 | 2020-06-19 | 엘지전자 주식회사 | 압축기 |
KR20200054785A (ko) * | 2018-11-12 | 2020-05-20 | 엘지전자 주식회사 | 압축기 |
EP3650699B1 (en) * | 2018-11-12 | 2024-03-06 | LG Electronics Inc. | Compressor |
KR102373829B1 (ko) * | 2019-02-12 | 2022-03-14 | 엘지전자 주식회사 | 압축기 |
CN114542471B (zh) * | 2022-03-07 | 2023-06-30 | 珠海凌达压缩机有限公司 | 挡油帽结构、压缩机及空调器 |
KR20240031705A (ko) * | 2022-09-01 | 2024-03-08 | 삼성전자주식회사 | 오일 차단 가이드를 구비한 밀폐형 압축기 |
US20240077077A1 (en) * | 2022-09-01 | 2024-03-07 | Samsung Electronics Co., Ltd. | Hermetic compressor with oil blocking guide |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017057Y1 (ja) * | 1969-06-12 | 1975-05-27 | ||
JPS5853879U (ja) * | 1981-10-06 | 1983-04-12 | 三菱電機株式会社 | 密閉形電動圧縮機 |
JPS6188081U (ja) * | 1984-11-16 | 1986-06-09 | ||
JPH02107783U (ja) * | 1989-02-13 | 1990-08-28 | ||
JPH0828476A (ja) * | 1994-07-15 | 1996-01-30 | Sanyo Electric Co Ltd | 密閉型回転圧縮機 |
JP2007187008A (ja) * | 2006-01-11 | 2007-07-26 | Matsushita Electric Ind Co Ltd | 密閉型電動圧縮機 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017057A (ja) | 1973-06-20 | 1975-02-22 | ||
JPS54137912A (en) | 1978-04-19 | 1979-10-26 | Hitachi Ltd | Picture quantization system |
JPS609538B2 (ja) | 1979-06-13 | 1985-03-11 | 松下電子工業株式会社 | けい光体層形成方法 |
JPS5853879A (ja) | 1981-09-26 | 1983-03-30 | Fujitsu Ltd | 半導体発光装置 |
JPS5997279U (ja) * | 1982-12-22 | 1984-07-02 | 株式会社日立製作所 | ロ−タリ式密閉形圧縮機の油分離構造 |
JPS60164692A (ja) | 1984-02-03 | 1985-08-27 | Matsushita Electric Ind Co Ltd | 密閉型回転圧縮機 |
JPS6188081A (ja) | 1984-10-04 | 1986-05-06 | Shoketsu Kinzoku Kogyo Co Ltd | 電磁弁マニホ−ルド |
JPH0719647B2 (ja) | 1985-11-27 | 1995-03-06 | 高周波熱錬株式会社 | 誘導加熱温度の外気温補正方法 |
JPH0649949B2 (ja) * | 1988-10-18 | 1994-06-29 | 新日本製鐵株式会社 | 打抜き性と磁気特性の優れた金属光沢を有する方向性電磁鋼板の製造方法 |
JPH0332191A (ja) | 1989-06-28 | 1991-02-12 | Sharp Corp | 記録再生装置 |
JPH03160190A (ja) * | 1989-11-15 | 1991-07-10 | Toshiba Corp | 回転圧縮機 |
JPH04325795A (ja) | 1991-04-26 | 1992-11-16 | Daikin Ind Ltd | ロータリ圧縮機 |
JPH11117882A (ja) | 1997-10-16 | 1999-04-27 | Osaka Shoji Kk | 全密閉形ロータリ圧縮機 |
JP4211477B2 (ja) * | 2003-05-08 | 2009-01-21 | 株式会社豊田自動織機 | 冷媒圧縮機のオイル分離構造 |
JP3788461B2 (ja) | 2004-02-06 | 2006-06-21 | ダイキン工業株式会社 | 圧縮機 |
JP2006283592A (ja) | 2005-03-31 | 2006-10-19 | Daikin Ind Ltd | 流体機械 |
CN100532851C (zh) * | 2005-06-13 | 2009-08-26 | 乐金电子(天津)电器有限公司 | 高压型涡旋式压缩机的油排出减少装置 |
CN2811623Y (zh) * | 2005-08-15 | 2006-08-30 | 钱永贵 | 带油气分离装置的房间空调器用涡旋式压缩机 |
KR20070093638A (ko) * | 2006-03-14 | 2007-09-19 | 엘지전자 주식회사 | 스크롤 압축기의 유분리 장치 |
CN101205915A (zh) * | 2006-12-20 | 2008-06-25 | 乐金电子(天津)电器有限公司 | 具备油排出减少功能的涡旋式压缩机 |
CN101457753A (zh) * | 2007-12-13 | 2009-06-17 | 乐金电子(天津)电器有限公司 | 改进的压缩机上盖油分离结构 |
CN101469714A (zh) * | 2007-12-27 | 2009-07-01 | 上海日立电器有限公司 | 一种压缩机的油气分离装置 |
JP5346210B2 (ja) | 2008-02-26 | 2013-11-20 | 東芝キヤリア株式会社 | 密閉型回転圧縮機及び冷凍サイクル装置 |
JP5286937B2 (ja) * | 2008-05-27 | 2013-09-11 | 株式会社富士通ゼネラル | ロータリ圧縮機 |
-
2010
- 2010-10-13 EP EP10823196.0A patent/EP2489879A4/en not_active Withdrawn
- 2010-10-13 JP JP2011536039A patent/JP5647989B2/ja not_active Expired - Fee Related
- 2010-10-13 CN CN201080045588.2A patent/CN102575676B/zh not_active Expired - Fee Related
- 2010-10-13 WO PCT/JP2010/006090 patent/WO2011045928A1/ja active Application Filing
- 2010-10-13 US US13/499,120 patent/US8801397B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017057Y1 (ja) * | 1969-06-12 | 1975-05-27 | ||
JPS5853879U (ja) * | 1981-10-06 | 1983-04-12 | 三菱電機株式会社 | 密閉形電動圧縮機 |
JPS6188081U (ja) * | 1984-11-16 | 1986-06-09 | ||
JPH02107783U (ja) * | 1989-02-13 | 1990-08-28 | ||
JPH0828476A (ja) * | 1994-07-15 | 1996-01-30 | Sanyo Electric Co Ltd | 密閉型回転圧縮機 |
JP2007187008A (ja) * | 2006-01-11 | 2007-07-26 | Matsushita Electric Ind Co Ltd | 密閉型電動圧縮機 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2489879A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2012248069B2 (en) * | 2011-04-26 | 2017-04-20 | 1783590 Ontario Ltd. D/B/A Inmotive | Key pulley segment features, segment stack configuration, and cam and roller design and actuation in a synchronized segmentally interchanging pulley transmission system |
US9816598B2 (en) | 2011-04-26 | 2017-11-14 | Inmotive Inc. | Key pulley segment features, segment stack configuration, and cam and roller design and actuation in a synchronized segmentally interchanging pulley transmission system |
EP2644894A3 (en) * | 2012-03-27 | 2017-04-26 | Fujitsu General Limited | Rotary compressor |
WO2015029603A1 (ja) * | 2013-08-29 | 2015-03-05 | 東芝キヤリア株式会社 | 密閉型圧縮機および冷凍サイクル装置 |
JPWO2015029603A1 (ja) * | 2013-08-29 | 2017-03-02 | 東芝キヤリア株式会社 | 密閉型圧縮機および冷凍サイクル装置 |
TWI575160B (zh) * | 2013-12-04 | 2017-03-21 | 三菱電機股份有限公司 | 渦旋壓縮機 |
JP2020176558A (ja) * | 2019-04-18 | 2020-10-29 | 三菱重工サーマルシステムズ株式会社 | ロータリ圧縮機 |
WO2022048110A1 (zh) * | 2020-09-04 | 2022-03-10 | 松下·万宝(广州)压缩机有限公司 | 一种压缩机及其带固线组件的挡油机构 |
Also Published As
Publication number | Publication date |
---|---|
EP2489879A4 (en) | 2015-08-05 |
US8801397B2 (en) | 2014-08-12 |
EP2489879A1 (en) | 2012-08-22 |
JP5647989B2 (ja) | 2015-01-07 |
JPWO2011045928A1 (ja) | 2013-03-04 |
US20120189470A1 (en) | 2012-07-26 |
CN102575676B (zh) | 2015-04-22 |
CN102575676A (zh) | 2012-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5647989B2 (ja) | 圧縮機 | |
WO2011080865A1 (ja) | 圧縮機 | |
EP2864636B1 (en) | Crankshaft with aligned drive and counterweight locating features | |
WO2013105386A1 (ja) | ベーン型圧縮機 | |
JPWO2019044867A1 (ja) | スクロール型圧縮機 | |
JP2005171860A (ja) | 圧縮機 | |
JP5271679B2 (ja) | スクロール型圧縮機 | |
WO2008032514A1 (en) | Compressor | |
JPS63109291A (ja) | スクロ−ル圧縮機 | |
EP3390828B1 (en) | Oil return with non-circular tube | |
US20130280117A1 (en) | Compressor | |
JP6048044B2 (ja) | 回転式圧縮機 | |
WO2017002536A1 (ja) | スクロール圧縮機 | |
JP2009114943A (ja) | スクロール型流体機械 | |
KR102566589B1 (ko) | 스크롤형 압축기 | |
JP2006144660A (ja) | 圧縮機 | |
WO2022004288A1 (ja) | 圧縮機 | |
WO2020184057A1 (ja) | モータ及び電動圧縮機 | |
WO2021124768A1 (ja) | 圧縮機 | |
JP4484912B2 (ja) | スクロール圧縮機 | |
WO2021015115A1 (ja) | 圧縮機 | |
KR101964961B1 (ko) | 점차적 유로 면적 변화 구조가 구비된 압축기 | |
JP4029061B2 (ja) | 圧縮機 | |
JPH0347496A (ja) | スクロール圧縮機 | |
JP2021032107A (ja) | 圧縮機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080045588.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10823196 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2011536039 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010823196 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13499120 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |