EP4077942A1 - Compresseur de fluide frigorigène hermétiquement encapsulé - Google Patents

Compresseur de fluide frigorigène hermétiquement encapsulé

Info

Publication number
EP4077942A1
EP4077942A1 EP20811514.7A EP20811514A EP4077942A1 EP 4077942 A1 EP4077942 A1 EP 4077942A1 EP 20811514 A EP20811514 A EP 20811514A EP 4077942 A1 EP4077942 A1 EP 4077942A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cylinder
connecting piece
refrigerant
refrigerant compressor
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.)
Granted
Application number
EP20811514.7A
Other languages
German (de)
English (en)
Other versions
EP4077942B1 (fr
Inventor
Erwin Berger
Ulf PLATZER
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.)
Anhui Meizhi Compressor Co Ltd
Original Assignee
Anhui Meizhi Compressor 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
Application filed by Anhui Meizhi Compressor Co Ltd filed Critical Anhui Meizhi Compressor Co Ltd
Publication of EP4077942A1 publication Critical patent/EP4077942A1/fr
Application granted granted Critical
Publication of EP4077942B1 publication Critical patent/EP4077942B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F04B39/0027—Pulsation and noise damping means
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections

Definitions

  • the present invention relates to hermetically sealed refrigerant compressors of the reciprocating compressor type, and more particularly to such compressors for refrigerating machines used in household appliances such as refrigerators, freezers and small air conditioners.
  • Conventional hermetically sealed refrigerant compressors comprise a cylinder formed in a cylinder block with an open end, a reciprocating piston arranged in the cylinder, a valve plate with a suction valve and a discharge valve, the valve plate being attached to the cylinder block at the open end of the cylinder, a cylinder head which lies above the valve plate and defines a cylinder head space around the side of the valve plate facing away from the cylinder, the cylinder head having a cylinder head cover having an inlet for refrigerant to be sucked in and an outlet for compressed refrigerant.
  • Silencers which are designed to suck in refrigerant, are an important component of the refrigerant compressor. They have the task of conducting the refrigerant, dampening the noises caused by the periodic suction of the refrigerant, and the refrigerant that enters the cylinder is sucked to thermally isolate from the environment.
  • the size of the silencers in particular their length, the shape and the internal volume have a very strong effect on the performance of the compressor. Due to the current trend to keep the dimensions of these compressors, in particular their height, as small as possible, the size of the silencers is inevitably restricted, which can have a negative effect on the performance of the compressor.
  • refrigerant compressors have a reciprocating piston axis perpendicular to the valve plate, as a result of which the inlet opening for the refrigerant in the valve plate lies transversely to the reciprocating piston axis.
  • the refrigerant compressors are usually installed in devices in such a way that the piston axis is arranged essentially horizontally.
  • the conventional mufflers In order to connect the muffler to the inlet opening of the valve plate, the conventional mufflers have a channel for discharging the sucked-in refrigerant, which has a deflection so that two channels at an angle to each other are formed from sections.
  • the channel can be connected to the inlet opening of the valve plate on the one hand and the silencer on the other hand can be arranged at a distance and at an angle from the inlet opening in order to optimally utilize the available installation space.
  • the channel abutting the inlet opening of the valve plate from section of the muffler is accordingly aligned at right angles to the valve plate. Since the muffler is in the In general, it cannot be arranged at the same level as the cylinder head cover, the said deflection and the second channel extending from the muffler are provided section, which is perpendicular to the piston axis. With this configuration, the muffler can be arranged in a place below the cylinder block.
  • a reciprocating compressor with a silencer designed in this way is disclosed, for example, in patent application US 2009/0038329 A1, in particular in FIG. Refrigerant is sucked in from the silencer through the duct and fed to the suction valve of the valve plate. Due to the shape and size, in particular the length and the deflection of the channel, there are, however, some disadvantages which are explained in more detail below.
  • a major disadvantage is the deflection of the channel. Due to this deflection, the centrifugal force directs the refrigerant to the outer edge of the channel and only hits a small area of the inlet opening of the suction valve. As a result, it is more difficult for the refrigerant to pass the inlet opening, which can lead to a backlog of refrigerant and consequently to performance losses of the compressor.
  • the deflection can cause a laminar flow of the refrigerant, which is preferred for low-error operation of the refrigerant compressor, to become unstable, as a result of which turbulence is formed in the area of the deflection in particular.
  • This turbulence is also favored by the considerable length of the duct section running perpendicular to the reciprocating piston axis, so that flow losses occur as a result, which further restrict the performance of the refrigerant compressor.
  • a refrigerant compressor which has a hermetically encapsulated housing, a cylinder formed in a cylinder block with an open end, a reciprocating piston arranged in the cylinder, a valve plate with a suction valve opening with a suction valve and an exhaust opening with a Exhaust valve, and a cylinder head on the side of the valve plate facing away from the cylinder, wherein the cylinder head defines a cylinder head space above the valve plate which is divided by a wall formed in the cylinder head into a suction chamber and a discharge chamber above a portion of the valve plate containing the discharge valve.
  • Thermal insulation means are provided for the thermal insulation of the sucked gas in the cylinder head space, which are either designed as a lining of the interior of the cylinder head with a thermally insulating material, such as a thermal insulation film, or consist of a separate insert in the form of a hollow body, which also provides sound insulation is used and is arranged with minimal contact points in the interior of the cylinder head.
  • the hollow body is arranged in the cylinder head space of the cylinder head, as a result of which its volume is inevitably small and thus the sound absorption is low.
  • the thermal insulation of this refrigerant compressor is also relatively low.
  • the present invention is intended to provide a refrigerant compressor which overcomes the above-mentioned disadvantages of the prior art and which enables low-noise operation even with a small overall size.
  • the present invention achieves the set objects by providing a hermetically encapsulated refrigerant compressor of the reciprocating compressor type with the features of claim 1.
  • Advantageous embodiments of the invention emerge from the dependent claims, the description and the drawings.
  • the present invention provides a hermetically sealed refrigerant compressor which has a cylinder formed in a cylinder block with an open end, a reciprocating piston arranged in the cylinder with a reciprocating piston axis along which the reciprocating piston reciprocates, a valve plate with a suction valve opening and a discharge valve , wherein the valve plate is attached to the cylinder block at the open end of the cylinder, a cylinder head on the side of the valve plate facing away from the cylinder, the cylinder head defining a cylinder head space at least above a portion of the valve plate containing the exhaust valve, the cylinder head having a cylinder head cover which has an outlet for compressed refrigerant, and has a muffler.
  • connection piece On the side of the valve plate facing away from the cylinder, a connection piece is arranged as an inlet for refrigerant to be sucked in, the connection piece having a first end which is arranged at the suction valve opening and a second end which is opposite the first end.
  • the connection piece is inclined at a maximum angle of inclination between -45 ° and + 45 ° with respect to the reciprocating piston axis.
  • the muffler is disposed outside of the cylinder head and has a housing that defines a cavity. A suction opening for refrigerant to be sucked into the cavity and a discharge opening for refrigerant to be discharged from the cavity are formed in the housing.
  • the nozzle penetrates the cylinder head cover or is outside the Cylinder head space arranged, wherein the second end of the connecting piece opens through the discharge opening into the cavity of the muffler.
  • a short suction path can be implemented which, compared to the prior art, is designed without a right-angled deflection, whereby the occurrence of turbulence and flow losses is significantly reduced or even completely prevented.
  • the short suction path also has the advantage that, on the one hand, material for the production of the silencer can be saved and, on the other hand, complex forming processes, which are necessary for creating the deflections of the channels of the conventional silencers, can be dispensed with.
  • the refrigerant compressor can be manufactured more simply and quickly, thereby reducing the production cost.
  • the omission of the channel with deflection means that the refrigerant flows evenly through the entire connector cross-section and is thus directed into the entire area of the suction valve opening. A backlog of the refrigerant can thus be avoided, which means that refrigerant can be sucked into the cylinder more efficiently.
  • a particular advantage of the invention is that the silencer can be arranged at the same level as the cylinder head cover, so that the cavity in the silencer can be dimensioned comparatively large even with small compressors. In this way, suction noises can be dampened more effectively, so that low-noise operation of the refrigerant compressor can be achieved.
  • the connecting piece is designed as a pipe section or a conical hollow body.
  • the connecting piece can be curved or designed with kinks, the maximum angle of inclination of each section of the connecting piece in relation to the reciprocating piston axis being between -45 ° and + 45 °. Due to the inclination of the nozzle or the sections of the nozzle, which is comparatively low or nonexistent compared to the prior art, the suction path is short and turbulence and flow losses in the nozzle remain low, which ensures that sufficient refrigerant is sucked in at all times.
  • the connecting piece is designed in one piece with the cylinder head cover.
  • This embodiment offers advantages due to a simple manufacturing process for the cylinder head cover with the connecting piece, for example by means of a die-casting or injection molding process, and minimizes temperature stresses in the cylinder head cover.
  • the cylinder head cover and the connecting piece preferably consist of a metal or a metal alloy, in particular aluminum or an aluminum alloy, or of an optionally fiber-reinforced plastic.
  • the housing of the muffler consists of a plastic. This embodiment has particularly good thermal insulation of the refrigerant from the environment.
  • the connecting piece has a shape that essentially corresponds to the cross-sectional area of the suction valve opening, but in particular an essentially circular or elliptical shape. This has the advantage that the refrigerant that is sucked in can enter the suction valve opening without hindrance and without suction losses that limit performance.
  • the discharge opening is arranged in an upper side or an underside of the housing of the muffler. Due to the slight inclination of the nozzle of a maximum of ⁇ 45 ° with respect to the piston axis, however, in this embodiment the wall of the top or bottom of the housing must be inclined accordingly so that the nozzle can open into the discharge opening of the housing.
  • FIG. 1 is a sectional view of a hermetically sealed refrigerant compressor with a cylinder head cover having a port in accordance with the present invention.
  • FIG. 2 shows a perspective view of the refrigerant compressor shown in FIG. 1.
  • FIG 3 shows the cylinder head cover integrated with the connecting piece in a perspective view.
  • FIGS. 1 and 2 show a hermetically encapsulated refrigerant compressor 1 according to the invention.
  • the refrigerant compressor 1 comprises a cylinder 3 formed in a cylinder block 2 with an open end, a reciprocating piston 4 arranged in the cylinder 3, a valve plate 5 with a suction valve opening 6 and a discharge valve 7 which is fastened to the cylinder block 2 at the open end of the cylinder 3, and a Cylinder head 8, which lies above the valve plate 5 and defines a cylinder head space 9 around the side of the valve plate 5 facing away from the cylinder 3.
  • the reciprocating piston 4 has a reciprocating piston axis 4a along which the reciprocating piston 4 moves back and forth.
  • the cylinder head 8 has a cylinder head cover 10 which has an inlet for refrigerant to be sucked in and an outlet for compressed refrigerant.
  • a silencer 12 is connected to the inlet of the cylinder head cover in that the inlet for refrigerant to be sucked in in the cylinder head cover 10 is designed as a connector 11 penetrating the cylinder head cover 10, a first end 11a of the connector 11 being arranged at the suction valve opening 6 and a second end 1 1b of the connecting piece 11 protrudes from the cylinder head cover 10.
  • the cylinder head 8 could, however, also be configured in such a way that it covers only a section of the valve plate 5, this section containing the exhaust valve 7.
  • connecting piece 11 It is also not necessary for the connecting piece 11 to penetrate the cylinder head cover 10, but it could also be arranged outside the cylinder head space 9, ie laterally, above or below the cylinder head cover 10.
  • the connecting piece 11 can be designed in one piece with the cylinder head cover 10.
  • the connecting piece 11 and the cylinder head cover 10 can be designed as separate components. It is also possible to design the connecting piece 11 in several parts, a one-piece design being preferred.
  • the connector 11 is designed as a straight pipe section and has a longitudinal axis 11c, which can be arranged at an angle of inclination a between -45 ° and + 45 ° with respect to the piston axis 4a
  • the longitudinal axis 11c of the connecting piece 11 and the reciprocating piston axis 4a is 0 °, ie the connecting piece 11 is arranged parallel to the reciprocating piston axis 4a.
  • alternative embodiments of the invention also provide a coaxial arrangement of the connecting piece 11 with respect to the piston axis 4a.
  • the connector 11 could also be designed as a conical hollow body and / or curved or formed with kinks, the maximum angle of inclination a of each section of the connector 11 with respect to the reciprocating piston axis 4a between -45 ° and + 45 ° in such an embodiment lies.
  • the muffler 12 has a housing 12a that defines a cavity 12d.
  • a suction opening 12b for refrigerant to be drawn into the cavity 12d and a discharge opening 12c for refrigerant to be discharged from the cavity 12d are formed in the housing 12a of the muffler 12.
  • the discharge opening 12c is arranged in a side wall of the housing 12a of the muffler 12.
  • the discharge opening 12c is in the installed position of the muffler 12 in the upper half, more precisely in this embodiment in the upper third of a side wall of the housing 12a of the muffler 12.
  • the second end 11b of the connecting piece 11 opens through the discharge opening 12c into the cavity 12d of the muffler 12, wherein in the The embodiment shown, the second end 11b of the connecting piece 11 protrudes through the discharge opening 12c of the muffler 12 into the cavity 12d of the muffler.
  • the first end 11 a of the connecting piece 11 rests directly on the suction valve opening 6 of the valve plate 5.
  • the connecting piece 11 preferably has a shape adapted to the cross-sectional area of the suction valve opening 6, for example an essentially circular or elliptical shape or combinations thereof. So the nozzle 11 z. B. have a mouth-shaped form shown in Fig. 3, wherein the ends 11a, 11b of the connecting piece 11 can be shaped differently from one another. For example, the first end 11a of the connecting piece 11 can be mouth-shaped and the second end 11b can be circular.
  • the cylinder head cover 10 and the connecting piece 11 are preferably designed as an integral unit which, for. B. can be produced by injection molding. If the connecting piece 11 and the cylinder head cover 10 are designed separately, the cylinder head cover 10 with the connecting piece
  • the connecting piece 11 by means of a non-positive connection, e.g. B. a press fit, or be connected by screw threads or gluing.
  • the material of the connecting piece 11 is preferably a metal or a metal alloy, e.g. B. aluminum or an aluminum alloy, however, another material known from the prior art, such as. B. an, optionally fiber-reinforced, plastic.
  • the cylinder head cover 10 is preferably made of the same material as the connecting piece 11.
  • the silencer 12 is arranged at the second end 11b of the connecting piece 11 opposite the valve plate 5, wherein the connecting piece 11 can be several centimeters, for example up to 10 cm, long and over a length of several centimeters, for example up to 5 cm can protrude from the cylinder head cover 10.
  • the second end 11b of the nozzle 11 facing away from the valve plate 5 is arranged at the discharge opening 12c of the silencer 12 and has a shape of its outer surface adapted to the contour of the discharge opening 12c, whereby the second end 11b of the nozzle 11 is essentially sealing the discharge port 12c of the housing 12a of the muffler
  • the silencer 12 can be inserted into the cavity 12d of the housing 12a of the muffler 12.
  • the silencer 12 is preferably connected to the connecting piece 11 by means of a force-fit connection, in particular by means of a press fit, in such a way that a tight connection is created. In the simplest case, this connection can be made by plugging the silencer 12 onto the connecting piece 11.
  • the muffler 12 can alternatively also cohesively, for. B. by gluing or welding, be connected to the nozzle 11, wherein in this case the silencer 12 and the connecting piece 11 are preferably made of the same material.
  • the material of the silencer 12 is preferably a plastic. In Fig.
  • the muffler 12 is shown schematically with a simple cuboid shape.
  • the silencer 12 can of course also have other shapes, which on the one hand result from the shape of the other parts of the refrigerant compressor 1, and on the other hand are designed so that the silencer 12 has the largest possible volume of its cavity 12d.
  • FIG. 3 shows a perspective view of the cylinder head cover 10 having the connecting piece 11.
  • the circular cylinder head cover 10 is connected to the likewise circular cylinder head 8 by means of a non-positive connection, in particular a screw connection.
  • B. can be connected to one another by means of a welded joint.
  • Both the cylinder head cover 10 and the cylinder head 8 can have a shape deviating from the circular cross-sectional shape, the cylinder head cover 10 and the cylinder head 8 preferably having the same cross-sectional shape.
  • a seal (not shown in the figures), e.g. B. an O-ring can be arranged to connect the cylinder head cover 10 to the cylinder head 8 tightly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne un compresseur de fluide frigorigène hermétiquement encapsulé (1) comprenant un cylindre (3), un piston (4) disposé dans le cylindre (3), ledit piston présentant un axe de piston (4a), une plaque de soupape (5) ayant une ouverture de soupape d'aspiration (6) et une soupape de décharge (7), une culasse (8) sur le côté de la plaque de soupape (5) opposé au cylindre (3), un couvercle de culasse (10) qui a une sortie pour un fluide frigorigène comprimé, et un silencieux (12). Une pièce de raccordement (11) est disposée sur le côté de la plaque de soupape (5) opposé au cylindre (3) en tant qu'entrée pour un fluide frigorigène à aspirer, la pièce de raccordement (11) présentant une première extrémité (11a) qui est disposée sur l'ouverture de soupape d'aspiration (6) et une seconde extrémité (11b). La pièce de raccordement (11) est inclinée par rapport à l'axe de piston (4a) selon un angle d'inclinaison maximal (α) compris entre -45° et +45°. Le silencieux (12) a un boîtier (12a) présentant une ouverture d'admission (12b) dans laquelle débouche la seconde extrémité (11b) de la pièce de raccordement (11).
EP20811514.7A 2019-12-19 2020-11-12 Compresseur de fluide frigorigène hermétiquement encapsulé Active EP4077942B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM50235/2019U AT17214U1 (de) 2019-12-19 2019-12-19 Hermetisch gekapselter Kältemittelverdichter
PCT/AT2020/060401 WO2021119683A1 (fr) 2019-12-19 2020-11-12 Compresseur de fluide frigorigène hermétiquement encapsulé

Publications (2)

Publication Number Publication Date
EP4077942A1 true EP4077942A1 (fr) 2022-10-26
EP4077942B1 EP4077942B1 (fr) 2023-09-06

Family

ID=76476455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20811514.7A Active EP4077942B1 (fr) 2019-12-19 2020-11-12 Compresseur de fluide frigorigène hermétiquement encapsulé

Country Status (5)

Country Link
US (1) US20230031688A1 (fr)
EP (1) EP4077942B1 (fr)
CN (1) CN114930022A (fr)
AT (1) AT17214U1 (fr)
WO (1) WO2021119683A1 (fr)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1179810B (it) * 1984-10-31 1987-09-16 Aspera Spa Gruppo motocompressore ermetico per circuiti frigoriferi
BR9301059A (pt) * 1993-05-07 1994-11-29 Brasil Compressores Sa Sistema de acionamento de válvula de descarga para compressores herméticos
JP2004360686A (ja) * 2003-05-12 2004-12-24 Matsushita Electric Ind Co Ltd 冷媒圧縮機
ATE393880T1 (de) * 2004-12-22 2008-05-15 Acc Austria Gmbh Hermetischer kältemittelverdichter
WO2006109239A1 (fr) * 2005-04-12 2006-10-19 Arcelik Anonim Sirketi Compresseur
BRPI0501740A (pt) * 2005-05-03 2006-12-12 Brasil Compressores Sa filtro de sucção para compressor de refrigeração
BRPI0503282A (pt) * 2005-08-01 2007-03-13 Brasil Compressores Sa compressor hermético com sistema de dissipação de calor
JP4577364B2 (ja) * 2006-09-13 2010-11-10 パナソニック株式会社 圧縮機
KR100856796B1 (ko) * 2007-07-16 2008-09-05 삼성광주전자 주식회사 밀폐형 압축기
JP4946767B2 (ja) * 2007-10-03 2012-06-06 パナソニック株式会社 密閉型圧縮機
WO2009072244A1 (fr) * 2007-12-06 2009-06-11 Panasonic Corporation Compresseur hermétique
BRPI0803457B1 (pt) * 2008-09-05 2020-11-10 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda arranjo de sucção para compressor hermético de refrigeração
JP5945845B2 (ja) * 2011-04-11 2016-07-05 パナソニックＩｐマネジメント株式会社 密閉型圧縮機
CN202132204U (zh) * 2011-06-09 2012-02-01 杭州斯波兰冷暖设备有限公司 低噪音压缩机吸排气装置
KR102156576B1 (ko) * 2015-02-04 2020-09-16 엘지전자 주식회사 왕복동식 압축기
WO2017191228A1 (fr) * 2016-05-05 2017-11-09 Arcelik Anonim Sirketi Compresseur hermétique à performances accrues

Also Published As

Publication number Publication date
AT17214U1 (de) 2021-09-15
US20230031688A1 (en) 2023-02-02
WO2021119683A1 (fr) 2021-06-24
EP4077942B1 (fr) 2023-09-06
CN114930022A (zh) 2022-08-19

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