WO2006049081A1 - スクロール型流体機械 - Google Patents
スクロール型流体機械 Download PDFInfo
- Publication number
- WO2006049081A1 WO2006049081A1 PCT/JP2005/019803 JP2005019803W WO2006049081A1 WO 2006049081 A1 WO2006049081 A1 WO 2006049081A1 JP 2005019803 W JP2005019803 W JP 2005019803W WO 2006049081 A1 WO2006049081 A1 WO 2006049081A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- pressure
- scroll
- circulation path
- type fluid
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
-
- 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
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
- F04C2210/261—Carbon dioxide (CO2)
Definitions
- the present invention relates to a scroll type fluid machine suitable for being incorporated in a refrigeration circuit of a vehicle air conditioning system.
- a scroll fluid machine of this type for example, a scroll compressor, is provided with a scroll unit that performs a series of refrigerant suction, compression, and discharge processes. Specifically, this unit is provided with fixed and movable scrolls that crawl with each other, and the movable scroll orbits with respect to the fixed scroll. As a result, the volume of the space formed by each scroll is reduced, and the above-described series of processes is performed.
- the scroll unit In order to use a CO refrigerant having a high operating pressure, the scroll unit is simple,
- a communication hole is provided in the movable scroll, or a check valve that prevents the back side force from flowing back to the front side is provided, or an elastic member is provided on the back side.
- a structure such as providing a hindrance to the above series of processes by the scroll unit.
- a communication hole is provided in the inside of the movable scroll, it must be noted that the compression efficiency decreases due to the refrigerant on the front side moving to the back side.
- the present invention has been made in view of such problems, and provides a scroll type fluid machine that includes a simple and rigid scroll unit and can reliably reduce the thrust load.
- the purpose is to do.
- the scroll type fluid machine of the present invention and a drive casing, a housing having a compression casing that is airtightly fitted to the drive casing, and a drive casing that is rotatable via a bearing. And a movable scroll that is housed in a compression casing and is driven by the rotary shaft to perform a swiveling motion, thereby performing a series of refrigerant suction, compression, and discharge processes in cooperation with the fixed scroll.
- a scroll unit having a discharge chamber that is formed in a compression casing is adjusted to a predetermined discharge pressure via a discharge valve and supplies the refrigerant discharged from the scroll unit to the refrigeration circuit, and refrigerant in the discharge chamber.
- the refrigerant of the inner movable scan
- An introduction path that leads to the back side of the crawl and opposes the discharge pressure of the refrigerant acting on the front side of the movable scroll may be provided.
- the refrigerant from the discharge chamber that does not go through each process of expansion and evaporation is introduced into the drive casing at a high pressure through the circulation path.
- the refrigerant with this circulation path force is led to the side through the introduction path. That is, the refrigerant discharge pressure acts on the front side of the movable scroll, while the pressure substantially equal to the refrigerant pressure in the discharge chamber acts on the back side of the movable scroll as a load. Since the refrigerant from the discharge chamber is adjusted to a predetermined discharge pressure by the discharge valve, the pressure fluctuation of the refrigerant acting on the back side of the movable scroll becomes extremely small. As a result, the thrust load on the movable scroll is surely offset, and the wear of the movable scroll is reduced.
- the scroll unit Since the force on the back side is opposed to the pressure on the front side without changing the movable scroll, the scroll unit is simple and has rigidity.
- a circulation path that is formed in the drive casing and has a motor chamber that drives the rotating shaft by energization, and a circulation path that balances the discharge pressure of the refrigerant acting on the front side of the movable scroll.
- Pressure control means for controlling the pressure of the refrigerant introduced to the machine room and loaded on the back side of the movable scroll. In this way, the pressure control means controls the pressure to the back side of the movable scroll, so that the front side pressure and the back side pressure are balanced. Therefore, the thrust load on the movable scroll is more reliably offset, and the scroll unit can provide a stable compression process, improving the reliability of the scroll unit.
- the drive casing includes a refrigerant introduction hole through which the refrigerant in the circulation path is introduced toward the machine room, and the pressure control means is arranged in either the circulation path or the refrigerant introduction hole itself. Yes.
- the pressure control means when the pressure control means is disposed in the circulation path located on the upstream side of the refrigerant introduction hole, the present fluid machine can be applied.
- the pressure control means if the pressure control means is disposed in the coolant introduction hole itself, it can be applied by replacing the fluid machine with the existing refrigeration circuit.
- the refrigerant having the gas cooler power in the refrigeration circuit is introduced into the refrigerant introduction hole toward the machine room.
- the refrigerant cooled by the gas cooler is introduced into the machine room, thermal damage to the motor or the like in the machine room is avoided.
- FIG. 10 Furthermore, there is provided another circulation path for deriving the refrigerant in the machine room toward the machine room power refrigeration circuit, and the refrigerant in the machine room passes through the other circulation path. It is preferably introduced into the scroll unit and then introduced into the scroll unit via a suction port formed in the compression casing. That is, the refrigerant passing through the low-pressure side circuit of the refrigeration circuit, for example, the expansion valve and the evaporator, is not directly introduced into the machine room, but is directly introduced into the scroll unit as the suction refrigerant.
- the low-pressure side circuit of the refrigeration circuit for example, the expansion valve and the evaporator
- the apparatus further includes other pressure control means for controlling the pressure of the refrigerant led out from the machine room that keeps the pressure of the refrigerant in the machine room to a predetermined pressure toward the other circulation path.
- the other pressure control means keeps the pressure in the machine room in which the refrigerant is introduced to the back side of the movable scroll at a predetermined pressure, so that the load on the back side is larger. More stable.
- the drive casing includes a refrigerant outlet hole through which the refrigerant in the machine room is led out toward another circulation path, and the other pressure control means is provided either in the refrigerant outlet hole itself or in the other circulation path. It is arranged in them.
- another pressure control means is disposed in the refrigerant outlet hole itself, it can be applied by replacing the fluid machine with the existing refrigeration circuit.
- the other pressure control means is disposed in another circulation path located downstream of the refrigerant outlet hole, it can be applied to the existing fluid machine.
- the refrigerant contains lubricating oil, and the lubricating oil separated from the refrigerant in the discharge chamber is compressed by the compression case.
- high-pressure refrigerant that has passed through the discharge chamber force refrigeration circuit is introduced into the drive casing, and the pressure difference between the drive casing and the discharge chamber is reduced, and the lubricating oil stored in the discharge chamber is reduced.
- the pressure difference between the drive casing and the discharge chamber becomes very large when the refrigerant that has passed through the expansion valve and the evaporator is introduced into the scroll unit through the drive casing. Measures that the cross-sectional area of distribution must be extremely small are not necessary. Also, clogging of lubricating oil in the communication path is prevented.
- the refrigerant is preferably a CO refrigerant. CO with high operating pressure in the refrigeration circuit
- FIG. 1 is a longitudinal sectional view showing a scroll compressor according to a first embodiment of the present invention.
- FIG. 2 is an enlarged cross-sectional view showing the main part of FIG.
- FIG. 3 is a longitudinal sectional view showing a scroll compressor according to a second embodiment.
- FIG. 4 is a flowchart of pressure control in the motor chamber in the compressor of FIG.
- FIG. 5 is a longitudinal sectional view showing a scroll compressor according to a third embodiment.
- FIG. 1 shows a scroll type fluid machine according to a first embodiment.
- the fluid machine is a scroll compressor 4 provided with a housing 20, and the compressor 4 is incorporated in a refrigeration circuit 2 of a vehicle air conditioning system.
- a compressor 4 a gas cooler 6, a double-pipe internal heat exchanger 10, an expansion valve 12 and an evaporator 14 are arranged in order, and the compressor 4 is on the outlet side of the internal heat exchange.
- CO refrigerant hereinafter simply referred to as refrigerant
- refrigerant which is a natural refrigerant
- the housing 20 has a drive casing 22 and a compression casing 24.
- Each casing 22, 24 has an open cup shape, and its open end is fitted in an airtight manner.
- An annular support block 46 is disposed at the opening end portion of the drive casing 22, and the space in the casing 22, specifically, the block 46 and the bottomed portion of the casing 22, is a motor chamber (machine chamber). ) It is formed as 26.
- a stepped rotary shaft 30 is disposed in the motor chamber 26, and the rotary shaft 30 has a small diameter shaft portion 32 and a large diameter shaft portion 34.
- the small-diameter shaft portion 32 is rotatably supported on the bottomed portion of the casing 22 via the one-dollar bearing 38, and the large-diameter shaft portion 34 is rotatably supported on the block 46 via the ball bearing 36! RU
- the rotating shaft 30 is driven by energizing an electric motor (motor) 40.
- a brushless electric motor 40 is disposed in the motor chamber 26
- a rotor 42 is fixed to the outer peripheral side of the rotating shaft 30, and
- a stator 44 is disposed on the outer peripheral side of the rotor 42 at a predetermined interval. ing .
- the stator 44 When the stator 44 is energized, the rotor 42 rotates integrally with the rotating shaft 30.
- an annular support block 48 is also disposed at the open end portion of the compression casing 24, and the back side of the block 48 is in contact with the front side of the block 46.
- a scroll unit 52 is accommodated in the casing 24, specifically, in a space between the block 48 and the bottomed portion of the casing 24, and the unit 52 includes a movable scroll 54 and a fixed scroll 56.
- Each of these scrolls 54, 56 has spiral wraps 61, 79 that wrap around each other, and these laps 61, 79 cooperate with each other to form a compression chamber 58 via a seal or the like (not shown).
- the compression chamber 58 moves from the radially outer peripheral side of each of the laps 61 and 79 toward the center by the turning motion of the movable scroll 54, and at this time, the volume thereof decreases.
- the substrate 60 of the movable scroll 54 has a boss 62 that protrudes toward the casing 22 side.
- the eccentric bush 66 is rotatably supported.
- the bush 66 is supported by a crank pin (not shown) and protrudes eccentrically from the large-diameter shaft portion 34. Accordingly, as the rotary shaft 30 rotates, the scroll 54 rotates by way of the bush 66.
- a counter weight 70 is attached to the bush 66, and this weight 70 serves as a balance weight for the turning motion of the scroll 54.
- the fixed scroll 56 is fixed to the bottomed portion of the compression casing 24, and the substrate 78 partitions the inside of the casing 24 from the compression chamber 58 side and the discharge chamber 80 side.
- Board 78 has A discharge hole 82 connected to the compression chamber 58 is formed in a substantially central part of the valve, and the hole 82 is opened and closed by a reed valve and a valve presser 84 as a discharge valve.
- the discharge valve 84 is attached to the discharge chamber 80 side of the substrate 78 and adjusts the refrigerant discharged from the scroll unit 52 to a predetermined discharge pressure.
- a suction port 25 communicating with the compression chamber 58 is formed on the peripheral wall of the compression casing 24, and the suction port 25 is connected to the circulation path 16 described above.
- a discharge port 86 communicating with the discharge chamber 80 is formed in the bottomed portion of the casing 24, and the discharge chamber 80 is connected to the gas cooler 6 through the discharge port 86.
- the block 48 is formed with a thick portion in contact with the block 46, and has a projecting portion 74 that extends inward from the thick portion. ing.
- the front side 76 of the projecting portion 74 faces the back side 72 of the scroll 54, and three seal rings 49 are arranged at equal intervals on the front side 76.
- a buffering gap 92 is formed between the back side 72 of the movable scroll 54 and the front side 76 of the block 48.
- the gap 92 communicates with the suction port 25, and the suction refrigerant from the circulation path 16 can flow into the gap 92.
- a gap (introduction path) 93 for introducing a refrigerant is also formed between the outer peripheral side of the boss 62 and the inner peripheral side of the projecting portion 74 of the block 48, and the gap 92 and the motor chamber 26 are interposed via the gap 93. And communicated with each other.
- the refrigerant in the motor chamber 26 can also flow into the buffer gap 92 through the gap 93.
- reference numeral 95 indicates the lubricating oil from which the refrigerant is also separated in the discharge chamber 80.
- the lubricating oil 95 is introduced into the bearing 36 via a communication path 94 disposed in the compression casing 24.
- the communication path 94 is formed in a groove shape in the casing 24, the substrate 78 of the scroll 56, the block 48 and the block 46.
- a refrigerant introduction hole 27 is formed in the vicinity of the opening end to connect the circulation path 7 connected to the outlet side of the gas cooler 6 and the motor chamber 26.
- the refrigerant from the gas cooler 6 is introduced toward the motor chamber 26 through the introduction hole 27.
- the peripheral wall of the casing 22 In the vicinity of the bottomed portion, a refrigerant outlet hole 28 is formed to communicate the motor chamber 26 and the internal heat exchange lO with a counter force circulation path (another circulation path) 8.
- the movable scroll 54 orbits around the axis of the fixed scroll 56 with the rotation of the rotating shaft 30 by energization of the electric motor 40. At this time, the rotation of the scroll 54 is blocked by the action of the plurality of rotation blocking mechanisms 50. As a result, the scroll 54 swivels with respect to the scroll 56 with its swiveling posture maintained constant, and this swirling movement sucks the refrigerant into the compression chamber 58 through the suction port 25, and the sucked refrigerant is discharged.
- the compressed refrigerant is compressed and discharged into the discharge chamber 80 by opening the discharge valve 84 when the pressure of the refrigerant exceeds the shut-off pressure of the discharge valve.
- the high-temperature and high-pressure gaseous refrigerant discharged into the discharge chamber 80 is cooled in the gas cooler 6 through the discharge port 86 and introduced into the motor chamber 26 through the circulation path 7 and the introduction hole 27. A part of the refrigerant introduced into the motor chamber 26 reaches the back side 72 of the scroll 54 through the gaps 93 and 92. On the other hand, the rest cools the stator 44 of the electric motor 40 and heads toward the lead hole 28. Then, the high-pressure medium-temperature refrigerant supplied to the internal heat exchanger 10 is supplied to the expansion valve 12 after being used for heat exchange with the refrigerant from the evaporator 14, and is evaporated by receiving expansion due to the throttle operation.
- the air around the evaporator 14 is cooled by the heat of vaporization of the refrigerant. Next, the cool air is sent into the passenger compartment to cool the passenger compartment.
- the refrigerant in the evaporator 14 returns to the suction port 25 of the compressor 4 through the circulation path 16, and is then compressed again by the compressor 4 and circulated as described above.
- the refrigerant from the discharge chamber 80 without passing through the respective processes by the expansion valve 12 and the evaporator 14 is circulated in the motor chamber 26.
- the refrigerant from the circulation path 7 is guided to the gap 92 on the rear side 72 of the movable scroll 54 through the gap 93. That is, while the refrigerant discharge pressure acts on the front side of the movable scroll 54, the pressure substantially equal to the refrigerant pressure in the discharge chamber 80 acts as a load on the rear side 72 of the movable scroll 54 ( (Indicated by solid arrows in Figure 2).
- the thrust load F on the movable scroll 54 (shown in white in FIG. 2) (Denoted by the arrow) is reliably offset, and wear of the movable scroll 54 is reduced.
- the scroll unit 52 Since the pressure on the back side 72 is opposed to the pressure on the front side without any change in the movable scroll 54, the scroll unit 52 is simple and has rigidity.
- the refrigerant that has passed through the expansion valve 12 and the evaporator 14 is not introduced into the motor chamber 26 but is directly introduced into the scroll unit 52 as a suction refrigerant. That is, it is possible to avoid the disadvantage that the temperature of the suction refrigerant becomes high by absorbing the heat of the electric motor as in the case where the low-temperature refrigerant passing through the expansion valve and the evaporator is introduced into the scroll unit through the motor chamber. This contributes to the improvement of refrigeration capacity.
- the present invention is not limited to the first embodiment described above, and various modifications are possible.
- the compressor of the second embodiment will be described below with reference to FIG.
- the same members and parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- a circulation path 9 facing the internal heat exchange ⁇ 10 is connected in the middle of the circulation path 7 in the figure.
- the circulation path 7 is connected to the connection portion of the circulation path 9 and the refrigerant introduction hole 27.
- An inlet side control valve (pressure control means) 88 is disposed between the two. This control valve 88 is the pressure inside the motor chamber 26.
- the circulation path 8 of the present embodiment is connected to a low-pressure side circuit between the expansion valve 12 and the evaporator 14, and the refrigerant in the motor chamber 26 is evaporated through the refrigerant outlet hole 28. Derived toward 14 upstream.
- an outlet side control valve (another pressure control means) 90 is disposed between the refrigerant outlet hole 28 and the connection portion on the upstream side of the evaporator 14. This control valve 90 also controls the pressure in the motor chamber 26 and maintains the refrigerant pressure in the motor chamber 26 at a predetermined pressure.
- control valves 88 and 90 may be arranged in the circulation paths 7 and 8 as described above, and may be arranged in the introduction hole 27 and the outlet hole 28 themselves.
- the refrigerant cooled in the controller 6 is introduced into the motor chamber 26.
- the refrigerant pressure P in the motor chamber 26 is read.
- step S201 if this pressure P is a force that requires immediate pressure increase,
- step S202 the pressure P is discharged as a load acting on the back side of the scroll 54.
- step S203 the control valve 88 is closed, and the refrigerant from the gas cooler 6 is not introduced into the motor chamber 26.
- the refrigerant on the downstream side of the gas cooler 6 is introduced into the internal heat exchange via the circulation path 9.
- the control valve 90 is opened, the refrigerant is flown out of the motor chamber 26, the pressure in the motor chamber 26 is lowered so that the predetermined value is reached, and the routine is exited.
- step S204 if the pressure P does not exceed the predetermined value in step S202, Proceeding to S204, the control valves 88 and 90 are closed. In this case, it is not necessary to increase the pressure immediately, and the temperature rise of the electric motor 40 is used. And so that the pressure P becomes the above-mentioned predetermined value.
- step S205 the pressure P acts on the back side of the scroll 54.
- the pressure P exceeds the predetermined value, which is the target value of the pressure in the motor chamber 26.
- step S206 pressure P closes control valve 88 and simultaneously opens control valve 90 to open the motor chamber.
- the refrigerant is discharged from 6 and the pressure in the motor chamber 26 is lowered so that the predetermined value is reached.
- step S207 the control valve 88 is opened and the refrigerant from the gas cooler 6 is introduced into the motor chamber 26.
- the control valve 90 is closed to prevent the refrigerant from flowing out of the motor chamber 26, and the pressure in the motor chamber 26 is increased immediately so that the predetermined value is reached.
- the opening / closing control of the control valves 88, 90 may be operated manually or by a signal from the controller, and the control valves 88, 90 may be operated by a signal from the controller.
- the inlet-side control valve 88 controls the pressure to the back side of the movable scroll 54, so The pressure on the side and the pressure on the back side are balanced. Therefore, the thrust load on the movable scroll 54 is more reliably offset, and the scroll unit 52 can obtain a stable compression process. As a result, the wear of the spiral wraps 61 and 79 is further reduced, and the reliability of the scroll unit 52 is improved.
- outlet side control valve 90 is a mode in which refrigerant is introduced to the back side of the movable scroll 54. Since the pressure in the data chamber 26 is maintained at a predetermined pressure, the load on the rear side is further stabilized.
- control valve 88 when the control valve 88 is disposed in the circulation path 7 between the gas cooler 6 and the introduction hole 27, the present compressor 4 can be applied. The same effect can be obtained even if the control valve 90 is disposed in the circulation path 8 between the outlet hole 28 and the evaporator 14. On the other hand, if the control valve 88 is disposed in the introduction hole 27 itself, it can be applied by replacing the compressor with respect to the existing circulation path. The same applies to the case where the control valve 90 is disposed in the outlet hole 28 itself.
- the refrigerant in the motor chamber 26 is introduced into the low-pressure circuit between the expansion valve 12 and the evaporator 14 via the circulation path 8.
- the circulation path 8 may be connected to the directional force circulation circuit 9 for internal heat exchange.
- the cooling medium in the motor chamber 26 can be used for heat exchange by internal heat exchange, which contributes to the improvement of the refrigerating capacity.
- the control valves 88 and 90 may be arranged in the circulation passages 7 and 8, or may be arranged in the introduction hole 27 or the outlet hole 28 itself.
- the scroll type fluid machine of the present invention can be used as an expander in addition to the compressor 4.
- the scroll unit is simple and rigid, and the thrust load is reduced. There is an effect that it can be surely achieved.
- a power vehicle engine in which the electric motor 40 is the drive source of the movable scroll 54 may be used as the drive source. Furthermore, using a CO refrigerant with a high operating pressure as in each of the above examples has a significant effect.
- the refrigerant having the capacity of the condenser is introduced into the motor chamber 26 through the circulation path 7.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005002722T DE112005002722B4 (de) | 2004-11-04 | 2005-10-27 | Spiral-Fluidmaschine |
US11/666,953 US7699589B2 (en) | 2004-11-04 | 2005-10-27 | Scroll type fluid machine having a circulation path and inlet path for guiding refrigerant from a discharge chamber to a drive casing and to a rear-side of movable scroll |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004321023A JP2006132403A (ja) | 2004-11-04 | 2004-11-04 | スクロール型圧縮機 |
JP2004-321023 | 2004-11-04 | ||
JP2005029014A JP4648021B2 (ja) | 2005-02-04 | 2005-02-04 | スクロール型流体機械 |
JP2005-029014 | 2005-02-04 |
Publications (1)
Publication Number | Publication Date |
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WO2006049081A1 true WO2006049081A1 (ja) | 2006-05-11 |
Family
ID=36319093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/019803 WO2006049081A1 (ja) | 2004-11-04 | 2005-10-27 | スクロール型流体機械 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7699589B2 (ja) |
DE (1) | DE112005002722B4 (ja) |
WO (1) | WO2006049081A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013042169A1 (ja) * | 2011-09-22 | 2013-03-28 | 三菱電機株式会社 | 横形スクロール圧縮機 |
US8814537B2 (en) | 2011-09-30 | 2014-08-26 | Emerson Climate Technologies, Inc. | Direct-suction compressor |
FR2989433B1 (fr) * | 2012-04-16 | 2018-10-12 | Danfoss Commercial Compressors | Compresseur a spirales |
EP2909480B1 (en) | 2012-09-13 | 2020-06-24 | Emerson Climate Technologies, Inc. | Compressor assembly with directed suction |
JP2014070582A (ja) * | 2012-09-28 | 2014-04-21 | Toyota Industries Corp | 電動圧縮機及び空調装置 |
CN103967785B (zh) * | 2013-02-05 | 2017-12-05 | 珠海格力节能环保制冷技术研究中心有限公司 | 涡旋压缩机 |
DE102015120151A1 (de) * | 2015-11-20 | 2017-05-24 | OET GmbH | Verdrängermaschine nach dem Spiralprinzip, Verfahren zum Betreiben einer Verdrängermaschine, Fahrzeugklimaanlage und Fahrzeug |
JP6750548B2 (ja) | 2017-03-30 | 2020-09-02 | 株式会社豊田自動織機 | スクロール型圧縮機 |
DE102017110913B3 (de) | 2017-05-19 | 2018-08-23 | OET GmbH | Verdrängermaschine nach dem Spiralprinzip, Verfahren zum Betreiben einer Verdrängermaschine, Fahrzeugklimaanlage und Fahrzeug |
KR101983052B1 (ko) * | 2018-01-04 | 2019-05-29 | 엘지전자 주식회사 | 전동식 압축기 |
KR102497530B1 (ko) * | 2018-05-28 | 2023-02-08 | 엘지전자 주식회사 | 토출 구조를 개선한 스크롤 압축기 |
US11236748B2 (en) | 2019-03-29 | 2022-02-01 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
US11767838B2 (en) | 2019-06-14 | 2023-09-26 | Copeland Lp | Compressor having suction fitting |
US11248605B1 (en) | 2020-07-28 | 2022-02-15 | Emerson Climate Technologies, Inc. | Compressor having shell fitting |
US11619228B2 (en) | 2021-01-27 | 2023-04-04 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
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JPS56165787A (en) * | 1980-05-23 | 1981-12-19 | Hitachi Ltd | Scroll fluidic machine |
JPH0631630B2 (ja) * | 1984-02-21 | 1994-04-27 | ザ トレーン カンパニイ | 流体圧縮用スクロール機 |
JPH10266988A (ja) * | 1997-03-21 | 1998-10-06 | Mitsubishi Heavy Ind Ltd | 密閉形電動圧縮機 |
JPH11132169A (ja) * | 1997-10-23 | 1999-05-18 | Zexel:Kk | 横置き型スクロールコンプレッサ |
JP2004028017A (ja) * | 2002-06-27 | 2004-01-29 | Denso Corp | スクロール型圧縮機 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55148994A (en) | 1979-05-09 | 1980-11-19 | Hitachi Ltd | Closed scroll fluid device |
JPS618492A (ja) * | 1984-06-25 | 1986-01-16 | Mitsubishi Electric Corp | 回転式圧縮機 |
JPS61169686A (ja) * | 1985-01-23 | 1986-07-31 | Hitachi Ltd | スクロ−ル圧縮機 |
JPH0364686A (ja) | 1989-07-31 | 1991-03-20 | Sanden Corp | スクロール型圧縮機 |
JP2000136782A (ja) * | 1998-10-30 | 2000-05-16 | Denso Corp | スクロール型圧縮機 |
JP3560492B2 (ja) * | 1999-02-25 | 2004-09-02 | 株式会社日本自動車部品総合研究所 | スクロール型圧縮機 |
DE19925744A1 (de) * | 1999-06-05 | 2000-12-07 | Mannesmann Vdo Ag | Elektrisch angetriebenes Kompressionskältesystem mit überkritischem Prozeßverlauf |
JP2000352386A (ja) * | 1999-06-08 | 2000-12-19 | Mitsubishi Heavy Ind Ltd | スクロール圧縮機 |
KR100924895B1 (ko) * | 2002-05-24 | 2009-11-02 | 파나소닉 주식회사 | 스크롤 압축기 |
JP4007189B2 (ja) * | 2002-12-20 | 2007-11-14 | 株式会社豊田自動織機 | スクロールコンプレッサ |
JP2004301092A (ja) | 2003-03-31 | 2004-10-28 | Toyota Industries Corp | スクロール圧縮機 |
-
2005
- 2005-10-27 US US11/666,953 patent/US7699589B2/en not_active Expired - Fee Related
- 2005-10-27 DE DE112005002722T patent/DE112005002722B4/de not_active Expired - Fee Related
- 2005-10-27 WO PCT/JP2005/019803 patent/WO2006049081A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165787A (en) * | 1980-05-23 | 1981-12-19 | Hitachi Ltd | Scroll fluidic machine |
JPH0631630B2 (ja) * | 1984-02-21 | 1994-04-27 | ザ トレーン カンパニイ | 流体圧縮用スクロール機 |
JPH10266988A (ja) * | 1997-03-21 | 1998-10-06 | Mitsubishi Heavy Ind Ltd | 密閉形電動圧縮機 |
JPH11132169A (ja) * | 1997-10-23 | 1999-05-18 | Zexel:Kk | 横置き型スクロールコンプレッサ |
JP2004028017A (ja) * | 2002-06-27 | 2004-01-29 | Denso Corp | スクロール型圧縮機 |
Also Published As
Publication number | Publication date |
---|---|
US7699589B2 (en) | 2010-04-20 |
DE112005002722T5 (de) | 2007-12-27 |
US20080138228A1 (en) | 2008-06-12 |
DE112005002722B4 (de) | 2013-04-04 |
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