JP2004324521A - Hermetically closed type compressor - Google Patents

Hermetically closed type compressor Download PDF

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Publication number
JP2004324521A
JP2004324521A JP2003120000A JP2003120000A JP2004324521A JP 2004324521 A JP2004324521 A JP 2004324521A JP 2003120000 A JP2003120000 A JP 2003120000A JP 2003120000 A JP2003120000 A JP 2003120000A JP 2004324521 A JP2004324521 A JP 2004324521A
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JP
Japan
Prior art keywords
refrigerant
discharge pipe
closed container
machine oil
compression mechanism
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.)
Pending
Application number
JP2003120000A
Other languages
Japanese (ja)
Inventor
Yutaka Yamada
山田  豊
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2003120000A priority Critical patent/JP2004324521A/en
Publication of JP2004324521A publication Critical patent/JP2004324521A/en
Pending legal-status Critical Current

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  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enhance a property of a device by reducing the refrigerating machine oil amount in a compression refrigerant delivered into a device refrigerating cycle from a delivery pipe. <P>SOLUTION: A guiding member 101 which directs a flow of the compression refrigerant to an intended direction is arranged on an inner surface of an upper part of a sealed vessel 601, thereby reducing the refrigerant machine oil amount in the compression refrigerant delivered from the delivery pipe 607. Further, an auxiliary hole 103 for suction of the compression refrigerant is additionally arranged to a compression refrigerant introducing port of the delivery pipe 611, or a diameter of the compression refrigerant introducing port of the delivery pipe 612 is enlarged, thereby reducing the refrigerant machine oil amount in the compression refrigerant delivered from the delivery pipe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】本発明は、空調・冷蔵・冷凍などの装置に使用される密閉型回転式圧縮機に関するものであり、信頼性が高く、かつ装置搭載時に効率よく運転する密閉型圧縮機に関するものである。
【0002】
【従来の技術】
従来の密閉形圧縮機としては、例えば特許文献1に記載するようなものがあった。図7は特許文献1に記載された従来の密閉型圧縮機を示すものである。
【0003】
図7において、密閉容器601内部に、電動機部602と、この電動機部602によって駆動される圧縮機構部603とが設置されている。
【0004】
電動機部602の回転力を圧縮機構部603に伝達して冷媒を圧縮し、圧縮した冷媒を電動機部602の下部空間604へ吐出し、密閉容器601の底部に封入した冷凍機油605が圧縮機構部603から吐出される圧縮冷媒と混合状態となって、電動機部602と密閉容器601との隙間と電動機部602の回転子と固定子の隙間を経由し、密閉容器601の上部空間606へ移動する。なお、冷凍機油605が貯留されている密閉容器601の低部は圧縮機構部603の外周部に設けた通路により下部空間604と連通している。
【0005】
上部空間606に移動した冷凍機油を含む圧縮冷媒は吐出管607から装置の冷凍サイクルへ排出される。
【0006】
【特許文献1】
特開昭63−189681号公報
【0007】
【発明が解決しようとする課題】
しかしながら、上記従来技術による密閉型圧縮機を装置に搭載して運転した場合、圧縮冷媒中に混合されて装置内を循環する冷凍機油量が多く、搭載する装置の冷媒配管及び熱交換器配管の内部に付着して性能低下が発生しているものがあった。
【0008】
本発明は、上記のような従来の課題を解決するためのものであり、密閉容器上部に設置する吐出管から装置冷凍サイクル中へ排出する圧縮冷媒中の冷凍機油量を低減させ、装置の性能を向上させる密閉型圧縮機を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記課題を解決するために本発明は、密閉容器上部の内面に、圧縮冷媒の流れを意図する方向へ向ける部材を設置することにより、吐出管から排出する圧縮冷媒中の冷凍機油量を低減させるものである。
【0010】
また、吐出管の圧縮冷媒導入口に圧縮冷媒吸込みに供する穴を追加設置、または吐出管の圧縮冷媒導入口の径を拡大することにより、吐出管から排出する圧縮冷媒中の冷凍機油量を低減させるものである。
【0011】
もちろん、上記の二項目を同時設置することにより圧縮冷媒中の冷凍機油量を低減させる手段は言うまでもない。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照しながら説明する。
【0013】
(実施の形態1)
図1は、本発明実施の形態1における密閉型圧縮機の要部断面図である。なお、図1に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0014】
図1において、密閉容器601内部に電動機部602と、電動機部602によって駆動される圧縮機構部603とを配設し、電動機部602の回転力を圧縮機構部603に伝達して冷媒を圧縮し、圧縮冷媒は電動機部602の下部空間604へ吐出される。
【0015】
下部空間604へ吐出された圧縮冷媒は、密閉容器601と電動機部602との隙間(図示せず)及び電動機部602の回転子と固定子の隙間を経由し、密閉容器601の上部空間606へと移動する。
【0016】
密閉容器上部空間606への入り口部を構成するドウシェル609と上シェル608の接合部Xと固定子巻線610の頂部近傍間を閉塞して、密閉容器601と電動機部602との隙間(図示せず)を通過した圧縮冷媒を、固定子巻線610へ向かわせる環状の誘導部材101を設置している。
【0017】
かかる構成によれば、冷凍機油を含んだ圧縮冷媒の流れを、電動機固定子の巻線610へ導き衝突させることで、圧縮冷媒中の冷凍機油を分離することができ、吐出管607から排出する圧縮冷媒に混合する冷凍機油量を低減することができる。
【0018】
(実施の形態2)
図2は、本発明実施の形態2における密閉型圧縮機の要部断面図である。なお、図2に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0019】
図2において、密閉容器上部空間606の略中央に配設した吐出管607を、略中央に位置するように誘導部材102を設置している。
【0020】
かかる構成によれば、冷凍機油を含んだ圧縮冷媒の流れを、電動機固定子の巻線610へ導くことにより圧縮冷媒中の冷凍機油を分離することができ、吐出管607から排出する圧縮冷媒に混合する冷凍機油量を低減することができる。
【0021】
(実施の形態3)
図3は本発明実施の形態3における密閉型圧縮機の要部断面図である。なお、図3に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0022】
図3において、密閉容器上部空間606を構成する上シェル608の略中央に設置した吐出管611に、圧縮冷媒吸込みに供する補助穴103を設置したものであり、穴の寸法・形状・個数は任意に選択可能である。
【0023】
かかる構成によれば、吐出管611の入り口側圧縮冷媒の速度を低下させ、圧縮冷媒中に含まれる冷凍機油量が低減でき、吐出管611から排出する圧縮冷媒に混合する冷凍機油量を低減することができる。
【0024】
(実施の形態4)
図4は、本発明実施の形態4における密閉型圧縮機の要部断面図である。なお、図4に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0025】
図4において、密閉容器上部空間606を構成する上シェル608の略中央に設置した吐出管612の入り口側に、径を出口側径より大きくした大径部104を設けたものである。
【0026】
かかる構成によれば、吐出管612の入り口側圧縮冷媒の速度を低下させ、圧縮冷媒中に含まれる冷凍機油量が低減でき、吐出管612から排出する圧縮冷媒に混合する冷凍機油量を低減することができる。
【0027】
(実施の形態5)
図5は、本発明実施の形態5における密閉型圧縮機の要部断面図である。なお、図5に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0028】
図5において、密閉容器上部空間606への入り口部を構成するドウシェル609と上シェル608の接合部Xに、圧縮冷媒の流れが近接する固定子巻線610へ向かうような誘導部材101を設置し、上シェル608の略中央に設置した吐出管611に、圧縮冷媒吸込みに供する補助穴103を設置したものである。
【0029】
かかる構成によれば、誘導部材101によって冷凍機油量を多く含む圧縮冷媒は電動機固定子巻線610に導かれ、圧縮冷媒中の冷凍機油を分離低減することができ、さらに吐出管611入り口側から吸い込む圧縮冷媒の流速低減による油分離が向上でき、吐出管611から排出する圧縮冷媒に混合する冷凍機油量をさらに低減することができる。
【0030】
(実施の形態6)
図6は、本発明実施の形態6における密閉型圧縮機の要部断面図である。なお、図6に示されない部分は図7と同様であり、図7と同じ符号を用いて説明する。
【0031】
図6において、ドウシェル609と上シェル608の接合部Xに、圧縮冷媒の流れが近接する固定子巻線610へ向かうような誘導部材101を設置し、上シェル608の略中央に入り口径を出口径より大きくした吐出管大径部104を設けたものである。
【0032】
かかる構成によれば、誘導部材101によって冷凍機油量を多く含む圧縮冷媒は電動機固定子巻線610に導かれ、圧縮冷媒中の冷凍機油を分離低減することができ、さらに吐出管612入り口側から吸い込む圧縮冷媒の流速低減による油分離が向上でき、吐出管612から排出する圧縮冷媒に混合する冷凍機油量をさらに低減することができる。
【0033】
【発明の効果】
以上のように、本発明の密閉型圧縮機によれば、密閉容器上部に設置する吐出管から装置冷凍サイクル中へ排出する圧縮冷媒中の冷凍機油量を低減させ、装置の性能向上させる密閉型圧縮機を提供することができる。
【図面の簡単な説明】
【図1】本発明の実施の形態1における密閉型圧縮機の要部断面図
【図2】本発明の実施の形態2における密閉型圧縮機の要部断面図
【図3】本発明の実施の形態3における密閉型圧縮機の要部断面図
【図4】本発明の実施の形態4における密閉型圧縮機の要部断面図
【図5】本発明の実施の形態5における密閉型圧縮機の要部断面図
【図6】本発明の実施の形態6における密閉型圧縮機の要部断面図
【図7】密閉型回転式圧縮機を示す縦断面図
【符号の説明】
601 密閉容器
602 電動機部
603 圧縮機構部
604 下部空間
605 冷凍機油
606 上部空間
607 吐出管
608 上シェル
609 ドウシェル
610 固定子巻線
611 吐出管
612 吐出管
101 誘導部材
102 誘導部材
103 補助穴
104 大径部
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic rotary compressor used for air conditioning, refrigeration, freezing, etc., which has high reliability and operates efficiently when mounted on the hermetic compressor. It is about the machine.
[0002]
[Prior art]
2. Description of the Related Art As a conventional hermetic compressor, for example, there has been one described in Patent Document 1. FIG. 7 shows a conventional hermetic compressor described in Patent Document 1.
[0003]
In FIG. 7, an electric motor unit 602 and a compression mechanism unit 603 driven by the electric motor unit 602 are installed inside a closed container 601.
[0004]
The rotational force of the motor unit 602 is transmitted to the compression mechanism unit 603 to compress the refrigerant, and the compressed refrigerant is discharged to the lower space 604 of the motor unit 602, and the refrigerating machine oil 605 sealed in the bottom of the sealed container 601 is used for the compression mechanism unit. It becomes mixed with the compressed refrigerant discharged from 603 and moves to the upper space 606 of the sealed container 601 via the gap between the motor unit 602 and the sealed container 601 and the gap between the rotor and the stator of the motor unit 602. . The lower portion of the closed container 601 storing the refrigerating machine oil 605 communicates with the lower space 604 by a passage provided on the outer peripheral portion of the compression mechanism 603.
[0005]
The compressed refrigerant containing the refrigerating machine oil that has moved to the upper space 606 is discharged from the discharge pipe 607 to the refrigeration cycle of the device.
[0006]
[Patent Document 1]
JP-A-63-189681
[Problems to be solved by the invention]
However, when the above-described prior art hermetic compressor is mounted on the apparatus and operated, the amount of refrigerating machine oil mixed in the compressed refrigerant and circulating in the apparatus is large, and the refrigerant pipe and the heat exchanger pipe of the mounted apparatus are mounted. Some of them adhered to the inside and reduced their performance.
[0008]
The present invention has been made to solve the conventional problems as described above, and reduces the amount of refrigerating machine oil in compressed refrigerant discharged into a device refrigeration cycle from a discharge pipe installed at the upper part of a closed container, thereby reducing the performance of the device. It is an object of the present invention to provide a hermetic compressor that improves the performance.
[0009]
[Means for Solving the Problems]
In order to solve the above problem, the present invention reduces the amount of refrigerating machine oil in the compressed refrigerant discharged from the discharge pipe by installing a member for directing the flow of the compressed refrigerant in an intended direction on the inner surface of the upper portion of the closed container. Things.
[0010]
In addition, reducing the amount of refrigerating machine oil in the compressed refrigerant discharged from the discharge pipe by installing an additional hole at the compressed refrigerant inlet of the discharge pipe for suction of compressed refrigerant or by increasing the diameter of the compressed refrigerant inlet of the discharge pipe It is to let.
[0011]
Of course, it goes without saying that means for reducing the amount of refrigerating machine oil in the compressed refrigerant by simultaneously installing the above two items.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
(Embodiment 1)
FIG. 1 is a cross-sectional view of a main part of the hermetic compressor according to Embodiment 1 of the present invention. 1 are the same as those in FIG. 7 and will be described using the same reference numerals as in FIG.
[0014]
In FIG. 1, an electric motor unit 602 and a compression mechanism unit 603 driven by the electric motor unit 602 are provided inside a closed container 601, and the rotational force of the electric motor unit 602 is transmitted to the compression mechanism unit 603 to compress the refrigerant. The compressed refrigerant is discharged to the lower space 604 of the electric motor unit 602.
[0015]
The compressed refrigerant discharged into the lower space 604 passes through a gap (not shown) between the closed casing 601 and the electric motor section 602 and a gap between the rotor and the stator of the electric motor section 602, and then flows to the upper space 606 of the closed casing 601. And move.
[0016]
The gap between the joint X between the dough shell 609 and the upper shell 608 constituting the entrance to the sealed container upper space 606 and the vicinity of the top of the stator winding 610 is closed, and the gap between the sealed container 601 and the motor unit 602 (shown in FIG. ) Is provided with an annular guide member 101 for passing the compressed refrigerant passing through the stator winding 610 to the stator winding 610.
[0017]
According to such a configuration, the flow of the compressed refrigerant containing the refrigerating machine oil is guided to the windings 610 of the motor stator and collided, whereby the refrigerating machine oil in the compressed refrigerant can be separated and discharged from the discharge pipe 607. The amount of refrigerating machine oil mixed with the compressed refrigerant can be reduced.
[0018]
(Embodiment 2)
FIG. 2 is a cross-sectional view of a main part of a hermetic compressor according to Embodiment 2 of the present invention. 2 are the same as those in FIG. 7 and will be described using the same reference numerals as in FIG.
[0019]
In FIG. 2, the guide member 102 is installed such that the discharge pipe 607 disposed substantially at the center of the upper space 606 of the closed container is positioned substantially at the center.
[0020]
According to such a configuration, the flow of the compressed refrigerant containing the refrigerating machine oil is guided to the windings 610 of the motor stator, whereby the refrigerating machine oil in the compressed refrigerant can be separated. The amount of refrigerating machine oil to be mixed can be reduced.
[0021]
(Embodiment 3)
FIG. 3 is a sectional view of a main part of a hermetic compressor according to Embodiment 3 of the present invention. 3 are the same as those in FIG. 7 and will be described using the same reference numerals as in FIG.
[0022]
In FIG. 3, an auxiliary hole 103 for sucking compressed refrigerant is provided in a discharge pipe 611 provided substantially at the center of an upper shell 608 constituting an upper space 606 of a closed container, and the size, shape, and number of holes are arbitrary. Can be selected.
[0023]
According to such a configuration, the speed of the compressed refrigerant on the inlet side of the discharge pipe 611 can be reduced, the amount of refrigerating machine oil contained in the compressed refrigerant can be reduced, and the amount of refrigerating machine oil mixed with the compressed refrigerant discharged from the discharge pipe 611 can be reduced. be able to.
[0024]
(Embodiment 4)
FIG. 4 is a cross-sectional view of a main part of a hermetic compressor according to Embodiment 4 of the present invention. 4 are the same as those in FIG. 7 and will be described using the same reference numerals as those in FIG.
[0025]
In FIG. 4, a large-diameter portion 104 having a diameter larger than the outlet-side diameter is provided on the inlet side of a discharge pipe 612 provided substantially at the center of an upper shell 608 constituting a closed container upper space 606.
[0026]
According to such a configuration, the speed of the compressed refrigerant on the inlet side of the discharge pipe 612 can be reduced, the amount of refrigerating machine oil contained in the compressed refrigerant can be reduced, and the amount of refrigerating machine oil mixed with the compressed refrigerant discharged from the discharge pipe 612 can be reduced. be able to.
[0027]
(Embodiment 5)
FIG. 5 is a cross-sectional view of a main part of a hermetic compressor according to Embodiment 5 of the present invention. Note that parts not shown in FIG. 5 are the same as those in FIG. 7 and will be described using the same reference numerals as in FIG.
[0028]
In FIG. 5, a guide member 101 is installed at a joint X between the dough shell 609 and the upper shell 608 constituting an entrance to the closed container upper space 606 such that the flow of the compressed refrigerant is directed to the stator winding 610 which is close thereto. An auxiliary hole 103 for suctioning the compressed refrigerant is provided in a discharge pipe 611 provided substantially at the center of the upper shell 608.
[0029]
According to such a configuration, the compressed refrigerant containing a large amount of refrigerating machine oil is guided to the motor stator winding 610 by the induction member 101, so that refrigerating machine oil in the compressed refrigerant can be separated and reduced, and further from the inlet side of the discharge pipe 611. Oil separation can be improved by reducing the flow velocity of the suctioned compressed refrigerant, and the amount of refrigerating machine oil mixed with the compressed refrigerant discharged from the discharge pipe 611 can be further reduced.
[0030]
(Embodiment 6)
FIG. 6 is a sectional view of a main part of a hermetic compressor according to Embodiment 6 of the present invention. Parts not shown in FIG. 6 are the same as those in FIG. 7, and will be described using the same reference numerals as in FIG.
[0031]
In FIG. 6, a guide member 101 is installed at a joint X between the dough shell 609 and the upper shell 608 so that the flow of the compressed refrigerant is directed toward the stator winding 610 which is close to the upper shell 608. The discharge pipe has a large-diameter portion 104 having a diameter larger than the diameter.
[0032]
According to such a configuration, the compressed refrigerant containing a large amount of refrigerating machine oil is guided to the motor stator winding 610 by the induction member 101, and the refrigerating machine oil in the compressed refrigerant can be separated and reduced, and further from the inlet side of the discharge pipe 612. Oil separation can be improved by reducing the flow velocity of the suctioned compressed refrigerant, and the amount of refrigerating machine oil mixed with the compressed refrigerant discharged from the discharge pipe 612 can be further reduced.
[0033]
【The invention's effect】
As described above, according to the hermetic compressor of the present invention, the hermetic compressor that reduces the amount of refrigerating machine oil in the compressed refrigerant discharged into the apparatus refrigeration cycle from the discharge pipe installed at the top of the hermetic container and improves the performance of the apparatus A compressor can be provided.
[Brief description of the drawings]
FIG. 1 is a sectional view of an essential part of a hermetic compressor according to a first embodiment of the present invention; FIG. 2 is a sectional view of an essential part of a hermetic compressor according to a second embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view of a main part of a hermetic compressor according to a third embodiment. FIG. 4 is a cross-sectional view of a main part of a hermetic compressor according to a fourth embodiment of the present invention. FIG. 5 is a hermetic compressor according to a fifth embodiment of the present invention. FIG. 6 is a sectional view of an essential part of a hermetic compressor according to a sixth embodiment of the present invention. FIG. 7 is a longitudinal sectional view showing a hermetic rotary compressor.
601 Closed container 602 Motor unit 603 Compression mechanism 604 Lower space 605 Refrigerator oil 606 Upper space 607 Discharge pipe 608 Upper shell 609 Daw shell 610 Stator winding 611 Discharge pipe 612 Discharge pipe 101 Induction member 102 Induction member 103 Auxiliary hole 104 Large diameter Department

Claims (5)

電動機部によって駆動される圧縮機構部を密閉容器内部に設置し、前記電動機部および圧縮機構部は前記密閉容器内に冷媒と共に封入された冷凍機油により潤滑され、前記圧縮機構部により圧縮された冷媒を前記密閉容器内に吐出した後、密閉容器を貫通して設けた吐出管から圧縮機外部に吐出する密閉形圧縮機であって、前記密閉容器内の吐出管近傍に冷媒を前記電動機の固定子巻線に向かって導く誘導部材を設けたことを特徴とする密閉形圧縮機。A compression mechanism driven by an electric motor is installed inside the closed container, and the electric motor and the compression mechanism are lubricated by refrigerating machine oil sealed together with the refrigerant in the closed container, and the refrigerant compressed by the compression mechanism is Is discharged into the closed vessel, and then discharged to the outside of the compressor from a discharge pipe provided through the closed vessel, wherein the refrigerant is fixed to the electric motor in the vicinity of the discharge pipe in the closed vessel. A hermetic compressor characterized by having an induction member for guiding toward a child winding. 電動機部によって駆動される圧縮機構部を密閉容器内部に設置し、前記電動機部および圧縮機構部は前記密閉容器内に冷媒と共に封入された冷凍機油により潤滑され、前記圧縮機構部により圧縮された冷媒を前記密閉容器内に吐出した後、密閉容器を貫通して設けた吐出管から圧縮機外部に吐出する密閉形圧縮機であって、前記吐出管の冷媒吸込み側開口とは別に冷媒吸込み補助穴を設けたことを特徴とする密閉形圧縮機。A compression mechanism driven by an electric motor is installed inside the closed container, and the electric motor and the compression mechanism are lubricated by refrigerating machine oil sealed together with the refrigerant in the closed container, and the refrigerant compressed by the compression mechanism is Is discharged into the closed container, and then discharged from the discharge pipe provided through the closed container to the outside of the compressor.A refrigerant suction auxiliary hole separately from the refrigerant suction opening of the discharge pipe. A hermetic compressor comprising: 電動機部によって駆動される圧縮機構部を密閉容器内部に設置し、前記電動機部および圧縮機構部は前記密閉容器内に冷媒と共に封入された冷凍機油により潤滑され、前記圧縮機構部により圧縮された冷媒を前記密閉容器内に吐出した後、密閉容器を貫通して設けた吐出管から圧縮機外部に吐出する密閉形圧縮機であって、前記吐出管の冷媒吸込み側端部を他の部分よりも大径に形成したことを特徴とする密閉形圧縮機。A compression mechanism driven by an electric motor is installed inside the closed container, and the electric motor and the compression mechanism are lubricated by refrigerating machine oil sealed together with the refrigerant in the closed container, and the refrigerant compressed by the compression mechanism is Is discharged into the closed container, and then discharged from the discharge pipe provided through the closed container to the outside of the compressor. A hermetic compressor characterized by having a large diameter. 請求項1記載の密閉型圧縮機であって、吐出管の冷媒吸込み側開口とは別に冷媒吸込み補助穴を設けたことを特徴とする密閉形圧縮機。2. The hermetic compressor according to claim 1, wherein a refrigerant suction auxiliary hole is provided separately from the refrigerant suction side opening of the discharge pipe. 請求項1記載の密閉型圧縮機であって、吐出管の冷媒吸込み側端部を他の部分よりも大径に形成したことを特徴とする密閉形圧縮機。2. The hermetic compressor according to claim 1, wherein a refrigerant suction side end of the discharge pipe is formed to have a larger diameter than other portions.
JP2003120000A 2003-04-24 2003-04-24 Hermetically closed type compressor Pending JP2004324521A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813090A (en) * 2009-02-20 2010-08-25 三洋电机株式会社 Closed rotary compressor
US11920595B2 (en) 2022-05-19 2024-03-05 Lg Electronics Inc. Compressor
KR102668423B1 (en) * 2022-05-19 2024-05-29 엘지전자 주식회사 Compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813090A (en) * 2009-02-20 2010-08-25 三洋电机株式会社 Closed rotary compressor
US11920595B2 (en) 2022-05-19 2024-03-05 Lg Electronics Inc. Compressor
KR102668423B1 (en) * 2022-05-19 2024-05-29 엘지전자 주식회사 Compressor

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