WO2004102005A1 - Compresseur - Google Patents

Compresseur Download PDF

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Publication number
WO2004102005A1
WO2004102005A1 PCT/JP2004/007133 JP2004007133W WO2004102005A1 WO 2004102005 A1 WO2004102005 A1 WO 2004102005A1 JP 2004007133 W JP2004007133 W JP 2004007133W WO 2004102005 A1 WO2004102005 A1 WO 2004102005A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
working fluid
discharge pipe
compressor
rotational motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2004/007133
Other languages
English (en)
Inventor
Hiroshi Hasegawa
Atsuo Okaichi
Fumitoshi Nishiwaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2003139771A external-priority patent/JP2004346741A/ja
Priority claimed from JP2003139772A external-priority patent/JP4029061B2/ja
Priority claimed from JP2003139770A external-priority patent/JP2004346740A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to US10/556,357 priority Critical patent/US20070269328A1/en
Publication of WO2004102005A1 publication Critical patent/WO2004102005A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • F04C29/026—Lubricant separation

Definitions

  • the hermetical container 1 is provided at its side surface with a suction pipe 15 for introducing working fluid from the refrigeration cycle into the compressor. Refrigeration oil is reserved in an oil reservoir 16 formed in a bottom of the hermetical container 1.
  • a cluster 26 is mounted on the introducing terminal 13, a lead wire 25 from the stator 11 of the rotational motor is connected to the cluster 26 so that current is supplied to the rotational motor from the introducing terminal 13.
  • a portion of working fluid including oil mist discharged from the compression mechanism into the lower space 17 of the rotational motor flows into the oil-separating space 22 through the through holes 12a.
  • the working fluid is radially discharged from an outer peripheral exit of the oil-separating plate 23 by a centrifugal force, and the working fluid is sprayed on the coil end lib of the stator 11, and the working fluid and the oil mist included therein are separated from each other. Only the working fluid from which the oil is separated flows upward and is discharged out from the discharge pipe 14 provided in the upper portion in the hermetical container 1.
  • the refrigeration oil attached to the coil end lib of the stator 11 drops downward and is returned into theoil reservoir 16 formedinthebottomof thehermetical container
  • the discharge pipe passing through the side surface of the container has the curved portion in the hermetical container, the open end in the container can easily be located inside the coil end. Therefore, the oil is separated by the gravity caused by changing the flowing direction and by the centrifugal force of the turning flow, and it is possible to prevent the refrigeration oil from being delivered outside the container. Since the upper portion in the container can freely be used, the flexibility in design of the compressor can be enhanced.
  • said discharge pipe has an open end in said container, the open end
  • the dividing member since the dividing member is provided, the turning flow of the working fluid generated by the rotor in the inner space is not dispersed to the outer space, the development of the turning flow is accelerated, and the oil is sufficiently separated by the centrifugal force caused by the turning flow.
  • the oil mist can attach the inner wall surface of the dividing member reliably, and the oil mist can be returned into the oil reservoir as liquid drop. Therefore, it is possible to prevent the refrigeration oil from being discharged from the discharge pipe together with the working fluid.
  • a gap is provided between an upper end of said dividing member and said container.
  • said dividing member is provided with a communication hole between the inner space and the outer space.
  • the dividing member is provided with the communication hole which brings the inner space and the outer space into communication with each other, the upper end of the dividingmember can be brought into contact with the upper end surface in the container and fixed thereto , and the positioning precision of the dividingmember when the compressor is assembled is enhanced.
  • the discharge pipe 34 passes through the side surface of the hermetical container 1, an upper portion in the hermetical container 1 can be used freely, and layout of the introducing terminal 13 is not limited.
  • the discharge pipe 34 can be connected directly, and there is effect that the structure of the refrigeration cycle becomes simple. In other words, the flexibility in design of the compressor can largely be enhanced.
  • the suction port 34a of the discharge pipe 34 is disposed closer to the inner peripheral surface of the coil end lib than the central portion of the hermetical container 1 as in the second embodiment, and the suction port 34a is directed toward substantially the downstream in the rotation direction of the upper surface 12b of the rotor 12.
  • the discharge pipe 35 is mounted in an upper portion of the hermetical container 1 closer to the center thereof than an inner diameterof the coilend1lb, andpasses throughthehermetical container 1.
  • a suction port 35a of the discharge pipe 35 is located inside the coil end lib of the stator 11.
  • the discharge pipe 35 is straight pipe having a step, i.e., an inner diameter of the discharge pipe 35 in the vicinity of the suction port 35a is enlarged.
  • the through holes 12a (see Fig. 11) of the rotor 12 is not provided.
  • the suction port 35a of the discharge pipe 35 is located inside the coil end lib as in the first embodiment, the same effect as that of the first embodiment can be obtained of course.
  • the refrigeration oil near the suction port 35a is more prone to be drawn together with the working fluid before the refrigeration oil is separated from the working fluid by the gravity and the centrifugal force.
  • the inner diameter of the discharge pipe 35 in the vicinity of the suction port 35a is enlarged, the flow velocity of the working fluid in the vicinity of the suction port 35a of the discharge pipe 35 is smaller as compared with a case in which the inner diameter is enlarged. Therefore, the amount of oil mist which is drawn together with the working fluid can be reduced, and the refrigeration oil-separating effect of the first to third embodiments can further be enhanced.
  • a compressor according to the sixth embodiment of the present invention has the same structure as that of the compressor of the second embodiment as shown in Figs . 3 and 4 except the hermetical container and the discharge pipe. The same elements are designated with the same symbols .
  • the upper bearing 9 includes a flow path 9a which is connected to the suction pipe 15 and which introduces working fluid drawing from the suction pipe 15 into the suction chamber 5, and the discharging hole 9b which discharges working fluid compressed in the compression chamber 6 into the lower space 17 of the rotational motor.
  • the rotational motor comprises the stator 11 shrinkage fitted into the hermetical container 1, and the rotor 12 which is shrinkage fitted to the shaft 2 and rotates in the inner periphery of the stator 11.
  • the stator 11 is provided at its upper end with the coil end lib and at its lower end with the coil end lid.
  • the stator 11 is provided at its outer periphery with a plurality of notches 11a which bring the lower space 17 and the upper space 19 into communication with each other.
  • the notches 11a serve as flow paths for working fluid.
  • Refrigeration oil is reserved in the oil reservoir 16 formed in the bottom of the hermetical container 1.
  • the thin cylinder 41 which divides the upper space 19 into the inner space 19a and the outer space 19b, it is possible to prevent the turning flow of the inner space 19a of the thin cylinder 41 from being dispersed to the outer space 19b of the thin cylinder 41.
  • attenuation of rotational motion energy is suppressed. Therefore, it becomes easily to maintain the turning flow velocity of the inner space 19a of the thin cylinder 41 in a portion of the coil end lib higher than the upper end surface lie, and strong centrifugal force is applied to the working fluid and oil mist which flow toward the suction port 40a provided in a lower portion of the gap 44 through the gap 44 between the upper end 41b of the thin cylinder 41 and the upper end surface la in the hermetical container 1.
  • the oil mist having higher density than the working fluid attaches to the inner side surface of the thin cylinder 41 andbecomes liquiddrop. Since the the liquiddrophas higherdensity than the working fluid, the liquid drop flows lower than the working fluid and is separated from the working fluid.
  • the gap 44 is provided between the upper end 41b of the thin cylinder 41 and the upper end surface la in the hermetical container 1 , the working fluid which passed through the notches 11a of the stator 11 and which includes oil mist flows upward to the vicinity of the upper end of the hermetical container 1 through the outer space 19b and then, passes through the gap 44 and flows into the inner space 19a of the thin cylinder 41.
  • the gap 44 is formed immediately below the upper end surface la in the hermetical container 1 and the inner space 19a of the thin cylinder 41 spreads below the gap 44.
  • the working fluid which flowed into the inner space 19a of the thin cylinder 41 forms a flow having downward flow velocity component while enlarging the flow width.
  • the turning flow is generated in viscosity in the vicinity of the upper surface 12b of the rotor 12.
  • the working fluid in the inner space 19a of the thin cylinder 41 reaches the vicinity of the upper surface 12b of the rotor 12 by a shearing force received from the turning flow, the flow velocity component in the rotational direction is increased.
  • a region which receives heat exchanger influence of the turning flow is increased to the inner side surface of the thin cylinder 41 fitted over the coil end lib and thus, the flow velocity in the rotational direction of the working fluid is abruptly reduced.
  • the inner side surface of the thin cylinder 41 is cylindrical in shape, the loss of the flow velocity in the rotational direction of the working fluid given by the inner side surface of the thin cylinder 41 higher than the upper end surface lie of the coil end lib becomes extremely small.
  • Oil mist which is not attached to the inner side surface of the thin cylinder 41 and is not drawn into the suction port 40a of the discharge pipe 40 has higher density than the working fluid in a lower portion of the suction port 40a of the discharge pipe 40, the oil mist reaches nearer to the upper surface 12b of the rotor 12 than the working fluid.
  • the thin cylinder 41 is fitted over the coil end lib, the gap is provided between the upper end of the thin cylinder 41 and the upper end surface in the hermetical container 1, and the discharge pipe 40 is extended and its suction port 40a is located inside the thin cylinder 41. Therefore, the effect of this embodiment can easily be obtained only by slightly changing the conventional compressor, and the compressor is extremely inexpensive. (Eighth Embodiment)
  • the inner diameter of the inner side surface of the thin cylinder 42 can further be reduced from its lower end toward its upper ends as compared with the compressor of the seventh embodiment .
  • a plurality of communication holes 45 are formed in the upper portion of the thin cylinder 43 as flow paths for working fluid which brings the inner space 19a and the outer space 19b into communication with each other.
  • a flange 43a extending inside the thin cylinder 43 from a lower inner side surface of the thin cylinder 43 is provided in the vicinity of the upper surface 12b of the rotor 12.
  • the inner space 19a of the thin cylinder 43 is divided by the flange 43a into an upper space 19a' and a lower space 19c.
  • a flow path 46 which brings the upper space 19a' and the lower space 19c into communication with each other is formed in a center of the flange 43a.
  • the working fluid on which the strong centrifugal force acts flows in theradial direction towardthe inner side surfaceof thethin cylinder 43 through the lower space 19c between the flange 43a and the upper surface 12b of the rotor 12, and flows downwardly through the gap 18 between the rotor 12 and the stator 11 along a corner formed between the flange 43a and the inner side surface of the thin cylinder 43.
  • the thin cylinder 43 is fitted into the coil end lib and the working fluid is allowed to flow into the inner space 19a of the thin cylinder 43 from the upper portion of the thin cylinder 43, fog drip and liquid drop of the refrigeration oil separated from the working fluid and collected into the lower portion of the upper space 19a' of the flange 43a are forcibly returned into the oil reservoir 16 formed in the bottom of the hermetical container 1 from the flow path 46 of the flange 43a through the the lower space 19c and the gap 18 between the rotor 12 and the stator 11.
  • Fig. 14 is a vertical sectional view of a compressor according to a tenth embodiment of the invention.
  • Fig.15 is a lateral sectional view of the compressor shown in Fig. 14 taken along arrows X-X
  • Fig. 16 is a lateral sectional view of the compressor shown in Fig.14 taken along arrows Y-Y
  • Fig.17 is alateral sectionalviewof the compressor shown in Fig. 14 taken along arrows Z-Z.
  • the compressor according to the tenth embodiment of the present invention has almost the same structure as that of the conventional compressor. The same elements are designated with the same symbols.
  • the upper bearing 9 includes a flow path 9a which is connected to the suction pipe 15 and which introduces working fluid drawing from the suction pipe 15 into the suction chamber 5, and the discharging hole 9b which discharges working fluid compressed in the compression chamber 6 into the lower space 17 of the rotational motor.
  • the hermetical container 1 comprises three elements, i.e. , an upper shell 50, a barrel shell 51 and a lower shell 52.
  • the hermetical container 1 is formed by welding.
  • An introducing terminal 54 for energizing the rotational motor in the hermetical container 1 is disposed in the center of the upper shell 50.
  • a columnar cluster 55 is mounted on the introducing terminal 54 in the hermetical container 1 such that a mounting gap is not substantially generated, and the stator 11 of the rotational motor is energized through the lead wire 25.
  • This columnar cluster 55 is provided in the upper central portion of the hermetical container such that a center axis of the cluster 55 substantially coincides with the rotation center axis of the rotational motor.
  • the working fluid is introduced from the suction pipe 15 into the suction chamber 5 through the flow path 9aprovided in theupper bearing 9. If the rotationalmotor is energized and the shaft 2 which is integral with the rotor 12 is rotated, the roller 4 eccentrically rotates, the capacities of the suction chamber 5 and the compression chamber 6 are varied. With this, the working fluid is drawn and compressed. When a discharge valve (not shown) of the discharging hole 9b is opened, oil mist which is supplied from the oil reservoir 16 and which lubricated the compression mechanism is mixed into the compressed working fluid, and this mixture is discharged into the lower space 17 of the rotational motor.
  • Theworking fluid in the lower space 17 passes through notches 11a formed in the outer periphery of the stator 11 as gaps between the rotational motor and the hermetical container 1, and through a gap 18 (air gap) between the stator 11 and the rotor 12, and flows into the upper space 19 of the rotational motor.
  • the working fluid is separated from the refrigeration oil in the upper space 19, and is discharged from the discharge pipe 14.
  • the working fluid which flowed to the inner space of the coil end lib on the upper end of the stator 11 and which includes the oil mist turns and flows in the inner space of the coil end lib, and the oil mist is separated from the working fluid by the centrifugal force, the oil mist attaches to the inner peripheral surface of the coil end lib andbecomes oil drop and drops downward, and the oil drop is returned to the oil reservoir 16 formed in the bottom of the hermetical container 1.
  • an amount of the refrigeration oil delivered to the refrigeration cycle out from the compressor together with the working fluid can be reduced extremely. Therefore, the refrigeration oil is not attached to an inner wall of a heat exchanger tube of a heat exchanger, and it is possible to prevent the heat exchanging efficiency from being deteriorated. An amount of refrigeration oil in the oil reservoir 16 can always be maintained constantly, andit is possible to enhance the reliability andefficiency of the compressor.
  • a compressor of the eleventh embodiment is the same as the compressor of the tenth embodiment shown in Figs. 14, 15 and 16.
  • a vertical sectional view of the compressor of the eleventh embodiment is the same as that shown in Fig. 14.
  • Fig. 18 is a lateral sectional view of a compressor according to the eleventh embodiment of the invention taken along arrows Z-Z in Fig. 14. The same elements are designated with the same symbols. Explanation of the same structure and effect as those of the tenth embodiment will be omitted.
  • the discharge pipe 63 pass through a side surface of the upper shell 50 and extends into the hermetical container 1 , and the discharge pipe 63 is located lower than a lower surface of the cluster 65.
  • a suction port 63a of the discharge pipe 63 as an open end in the hermetical container projects from an inner wall surface of the hermetical container 1.
  • a hydrocarbon refrigerant which is a natural refrigerant is used as the working fluid. The oil-separating operation will be explained.
  • the working fluid including oil mist discharged from the compression mechanism into the lower space 17 of the rotational motor passes through the notches 11a of the stator 11 and the gap 18 between the stator 11 and the rotor 12, and moves into the upper space 19 of the rotational motor. At that time, since the gap 18 is extremely narrow, the rate of working fluid passing through the notches 11a of the stator 11 becomes extremely large .
  • the working fluid including the oil mist passing through the notches 11a of the stator 11 flows into the upper space 19 of the rotational motor along a wall surface of the hermetical container 1 (barrel shell 51 and the upper shell 50) . Thereafter, the side surface 65a of the cluster 65 disposed in the central portion of the upper shell 50 becomes an obstruction, and a downward flow toward the inner space of the coil end lib along the side surface 65a is generated. At that time, the side surface 65a of the cluster 65 is opposed to the flow of the working fluid which flows from the notches 11a of the stator 11 and which includes the oil mist .
  • the rotor 12 of the rotational motor Since the rotor 12 of the rotational motor is rotational at high speed, a shearing force caused by the upper surface 12b of the rotor 12 is applied to the downward flow of the working fluid, and turning flow around the rotation center axis is generated.
  • the cluster 65 is hexagonal columnar in shape which is symmetric wither respect to the rotation center axis L, the turning flow around the cluster 65 is further prone to be generated without being hindered, and the flow velocity of the turning flow is uniformly increased. Therefore, the working fluid and the refrigeration oil are separated by a centri ugal force caused by a difference in density therebetween, the oil mist moves toward the outer peripheral portion of the turning flow, and attaches to the inner wall surface of the upper shell 50 and becomes oil drop. The oil drop drops downward and is returned into the oil reservoir 16 formed in the bottom of the hermetical container 1.
  • the working fluid which flowed to the inner space of the coil end lib on the upper end of the stator 11 and which includes the oil mist turns and flows in the inner space of the coil end lib, and the oil mist is separated from the working fluid by the centrifugal force, the oil mist attaches to the inner peripheral surface of the coil end lib and becomes oil drop and drops downward, and the oil drop is returned to the oil reservoir 16 formed in the bottom of the hermetical container 1.
  • the working fluid from which the oil mist is separated flows around a region close to the center of the turning flow which is away from an inner wall surface of the hermetical container 1. Since the suction port 63a projects from the inner wall surface of the hermetical container 1 and the suction port 63a is inserted into this region in this embodiment, most of refrigeration oil is separatedfrom theworking fluid which flowed into the discharge pipe 63 and discharged from the compressor.
  • an amount of the refrigeration oil delivered to the refrigeration cycle out from the compressor together with the working fluid can be reduced extremely. Therefore, the refrigeration oil is not attached to an inner wall of a heat exchanger tube of a heat exchanger, and it is possible to prevent the heat exchanging efficiency from being deteriorated. An amount of refrigeration oil in the oil reservoir 16 can always be maintained constantly, and it is possible to enhance the reliabilityand efficiency of the compressor.
  • ahydrocarbon refrigerant which is a natural refrigerant having lower worming coefficient . If the hydrocarbon refrigerant is used as the working fluid, it is necessary to take the combustible nature of the refrigerant into consideration and to reduce the amount of refrigerant to be charged into the refrigeration cycle for enhancing the safety, and it is required to reduce the compressor in size. According to this embodiment, the oil-separating efficiency can be enhanced only by forming the cluster 65 into the hexagonal columnar shape and by allowing the discharge pipe 63 to pass through the side surface of the upper shell 50.
  • This embodiment can easily be applied to the compressor with the hermetical container 1 having the outer diameter as extremely small as about 80mm or less.
  • the compressor is small in size using combustible hydrocarbon refrigerant, it is possible to easily reduce the amount of oil to be discharged.
  • the amount of oil can easily be reduced only by slightly changing the cluster 65 and the discharge pipe 63 and thus, it is possible to provide an extremely inexpensive compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne un compresseur qui comprend une enceinte hermétique, un système de compression placé dans une partie inférieure de l'enceinte hermétique, un moteur rotatif placé dans une partie supérieure de l'enceinte hermétique et comportant un stator et un rotor, des têtes de bobine placées dans les extrémités supérieure et inférieure du stator, un tuyau d'évacuation placé dans une extrémité supérieure de l'enceinte hermétique, et un réservoir d'huile placé dans une partie inférieure de l'enceinte hermétique. Le fluide de travail comprimé par le système de compression est introduit dans un espace supérieur de l'enceinte hermétique, à travers un vide se situant entre le moteur rotatif et l'enceinte hermétique. Le fluide de travail est expulsé de l'enceinte hermétique par un tuyau d'évacuation, une extrémité ouverte du tuyau d'évacuation de l'enceinte hermétique se situant à l'intérieur de la tête de bobine de l'extrémité supérieure.
PCT/JP2004/007133 2003-05-19 2004-05-19 Compresseur Ceased WO2004102005A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/556,357 US20070269328A1 (en) 2003-05-19 2004-05-19 Antennas Array Calibration Arrangement and Method

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2003-139771 2003-05-19
JP2003-139772 2003-05-19
JP2003139771A JP2004346741A (ja) 2003-05-19 2003-05-19 圧縮機
JP2003-139770 2003-05-19
JP2003139772A JP4029061B2 (ja) 2003-05-19 2003-05-19 圧縮機
JP2003139770A JP2004346740A (ja) 2003-05-19 2003-05-19 圧縮機

Publications (1)

Publication Number Publication Date
WO2004102005A1 true WO2004102005A1 (fr) 2004-11-25

Family

ID=33458363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/007133 Ceased WO2004102005A1 (fr) 2003-05-19 2004-05-19 Compresseur

Country Status (2)

Country Link
US (1) US20070269328A1 (fr)
WO (1) WO2004102005A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3312424A1 (fr) * 2016-10-19 2018-04-25 Mitsubishi Heavy Industries Thermal Systems, Ltd. Compresseur rotatif hermétique
EP3379082A1 (fr) * 2017-03-20 2018-09-26 LG Electronics Inc. Compresseur hermétique
WO2022048110A1 (fr) * 2020-09-04 2022-03-10 松下·万宝(广州)压缩机有限公司 Compresseur et mécanisme déflecteur d'huile doté d'ensemble de fixation de fils

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102477986B (zh) * 2010-11-26 2015-09-02 上海日立电器有限公司 一种转子式压缩机
US12040680B2 (en) * 2019-06-13 2024-07-16 Mitsubishi Electric Corporation Compressor and air conditioner
JP7078064B2 (ja) * 2020-03-30 2022-05-31 株式会社富士通ゼネラル ロータリ圧縮機
CN115190944A (zh) * 2020-06-29 2022-10-14 松下知识产权经营株式会社 旋转式压缩机和制冷循环装置
CN118582390A (zh) * 2024-06-19 2024-09-03 珠海凌达压缩机有限公司 一种压缩机前盖和压缩机

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US4854831A (en) * 1987-11-27 1989-08-08 Carrier Corporation Scroll compressor with plural discharge flow paths
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US4854831A (en) * 1987-11-27 1989-08-08 Carrier Corporation Scroll compressor with plural discharge flow paths
US4881879A (en) * 1987-12-24 1989-11-21 Tecumseh Products Company Rotary compressor gas routing for muffler system
US5597293A (en) * 1995-12-11 1997-01-28 Carrier Corporation Counterweight drag eliminator
JP2002235666A (ja) * 2001-02-09 2002-08-23 Toshiba Kyaria Kk 密閉形圧縮機

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3312424A1 (fr) * 2016-10-19 2018-04-25 Mitsubishi Heavy Industries Thermal Systems, Ltd. Compresseur rotatif hermétique
EP3379082A1 (fr) * 2017-03-20 2018-09-26 LG Electronics Inc. Compresseur hermétique
US11174865B2 (en) 2017-03-20 2021-11-16 Lg Electronics Inc. Hermetic compressor having inlet port arrangement including a suction passage defined in an intermediate plate
US11754071B2 (en) 2017-03-20 2023-09-12 Lg Electronics Inc. Hermetic compressor including an intermediate plate having a curved suction passage
WO2022048110A1 (fr) * 2020-09-04 2022-03-10 松下·万宝(广州)压缩机有限公司 Compresseur et mécanisme déflecteur d'huile doté d'ensemble de fixation de fils

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