JP2002070742A - Refrigerant compressor - Google Patents
Refrigerant compressorInfo
- Publication number
- JP2002070742A JP2002070742A JP2000260693A JP2000260693A JP2002070742A JP 2002070742 A JP2002070742 A JP 2002070742A JP 2000260693 A JP2000260693 A JP 2000260693A JP 2000260693 A JP2000260693 A JP 2000260693A JP 2002070742 A JP2002070742 A JP 2002070742A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- compressor
- refrigerating machine
- piston
- machine oil
- 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
Links
Landscapes
- Compressor (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、冷蔵庫等に用いる
冷媒圧縮機に係り、特に、塩素を含まない新冷媒を用い
る圧縮機のシリンダとピストン間の往復摺動部の潤滑に
好適で、冷凍能力を向上する冷媒圧縮機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant compressor for use in refrigerators and the like, and more particularly to lubrication of a reciprocating sliding portion between a cylinder and a piston of a compressor using a new refrigerant containing no chlorine. The present invention relates to a refrigerant compressor for improving capacity.
【0002】[0002]
【従来の技術】近年、環境汚染の問題から塩素を含む冷
媒が使用規制の対象となっている。そこで、規制に対応
する新冷媒として例えばHFC134aが使用されてい
る。しかし、HFC134aは従来のR−12と比較し
て潤滑特性や能力特性の低下を伴うことから改善の余地
がある。そこで、冷凍機油を用いた特性の低下を補う方
法としては、特開平8−270561号公報に記載され
ている圧縮機の吸入ガス中に冷凍機油を混入させ、シリ
ンダ内径とピストン外径との摺動部を潤滑すると共に、
この摺動部の隙間をシールするようなものが知られてい
た。2. Description of the Related Art In recent years, refrigerants containing chlorine have been subject to use restrictions due to the problem of environmental pollution. Therefore, for example, HFC134a is used as a new refrigerant complying with regulations. However, HFC134a has room for improvement because it has a decrease in lubrication characteristics and performance characteristics as compared with the conventional R-12. Therefore, as a method of compensating for the deterioration of the characteristics using the refrigerating machine oil, a refrigerating machine oil is mixed into a suction gas of a compressor described in Japanese Patent Application Laid-Open No. 8-270561, and a sliding between a cylinder inner diameter and a piston outer diameter is performed. While lubricating the moving parts,
A device that seals a gap between the sliding portions has been known.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、圧縮機
の吸入ガス中に冷凍機油を混入させる方法では、圧縮し
吐出するガスと共に含まれる冷凍機油が冷蔵庫等を構成
する冷凍サイクルに送り出され、圧縮機内に貯留してい
る冷凍機油不足から摺動部の潤滑に支障をきたす恐れが
あることや、冷凍サイクルに備えた熱交換器の伝熱性能
低下が発生する等の問題点があった。However, in the method of mixing the refrigerating machine oil into the suction gas of the compressor, the refrigerating machine oil contained together with the gas to be compressed and discharged is sent to a refrigerating cycle constituting a refrigerator or the like, and the inside of the compressor is removed. There is a problem that the lubrication of the sliding portion may be hindered due to the shortage of the refrigerating machine oil stored in the refrigeration cycle, and the heat transfer performance of a heat exchanger provided for the refrigeration cycle may be reduced.
【0004】本発明は、これらの問題を改善した冷媒圧
縮機を提供するものである。[0004] The present invention provides a refrigerant compressor in which these problems are improved.
【0005】[0005]
【課題を解決するための手段】上記課題を解決するた
め、請求項1にかかる発明は、冷凍機油を貯溜した密閉
容器内に、電動機部と、この電動機部の上部に回転軸を
介して連結される圧縮機部とを、回転軸心を垂直方向に
して配設し、前記回転軸に備えた給油機構の吸入口部と
なる回転軸下端部を冷凍機油中に浸漬してなる冷媒圧縮
機において、前記回転軸の回転に伴って給油機構を上昇
し回転軸上端部から前記圧縮機部に振りかけられた冷凍
機油の一部を、前記圧縮機部の回転軸側シリンダ内周面
とピストン外周面との隙間へ導く手段として、回転軸側
シリンダ端面から所定寸法以内のシリンダ内径を大きく
形成したことによって、貯油のための容積を確保してシ
リンダとピストン間の摺動部へ給油するものである。According to a first aspect of the present invention, there is provided an electric motor unit in an airtight container storing refrigerating machine oil, the electric motor unit being connected to an upper portion of the electric motor unit via a rotary shaft. And a compressor unit having a rotation axis perpendicular to the rotation axis, and a lower end of the rotation shaft serving as a suction port of an oil supply mechanism provided on the rotation shaft is immersed in refrigerating machine oil. In the above, a part of the refrigerating machine oil sprinkled from the upper end of the rotating shaft to the compressor unit by raising the oil supply mechanism with the rotation of the rotating shaft is used to remove the inner circumferential surface of the rotating shaft side cylinder of the compressor unit and the outer periphery of the piston. As a means for guiding to the gap between the cylinder and the piston, a large cylinder inner diameter within a predetermined dimension from the end face of the cylinder on the rotating shaft side is secured to secure a volume for oil storage and supply oil to the sliding part between the cylinder and piston. is there.
【0006】請求項2にかかる発明は、圧縮機部に振り
かけられた冷凍機油の一部をシリンダ内周面とピストン
外周面との隙間へ導く手段として、前記シリンダ内周面
の回転軸側の開口端に面取りを形成したことによって、
振りかけられた冷凍機油の集油を行うものである。According to a second aspect of the present invention, as a means for guiding a part of the refrigerating machine oil sprinkled on the compressor portion into a gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston, the portion of the inner peripheral surface of the cylinder on the rotating shaft side is provided. By forming a chamfer at the open end,
This is for collecting the sprinkled refrigerator oil.
【0007】請求項3にかかる発明は、圧縮機部に振り
かけられた冷凍機油の一部をシリンダ内周面とピストン
外周面との隙間へ導く手段として、前記圧縮機部のシリ
ンダ上部にフェンスを立設すると共に、このフェンスよ
り回転軸側のシリンダ上部には、シリンダ内へ冷凍機油
を導入する孔を形成したことによって、振りかけられた
冷凍機油を集油すると共にシリンダ内に供給するもので
ある。According to a third aspect of the present invention, a fence is provided on an upper portion of the cylinder of the compressor section as means for guiding a part of the refrigerating machine oil sprinkled on the compressor section into a gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston. In addition to being erected, a hole for introducing refrigerating machine oil into the cylinder is formed above the cylinder on the rotating shaft side of the fence, so that the sprinkled refrigerating machine oil is collected and supplied into the cylinder. .
【0008】[0008]
【発明の実施の形態】先ず本発明に係る冷媒圧縮機につ
いて図面を参照して説明する。図1は本発明の一実施形
態である冷媒圧縮機の内部構造を示す平面図であり、図
2は同縦断面図である。図において1は密閉容器であ
り、この内部下方に配置された電動機2と、この電動機
2により回転軸3を介して駆動される圧縮機部7が上方
に設けられている。圧縮機部7は回転軸3に設けられた
偏芯ピン3aの回転運動を、スライダー4とピストン5
のクロススライド部5aを介してピストン5の往復運動
に変換し、シリンダ6内をピストン5が往復運動するよ
うに構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a refrigerant compressor according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing the internal structure of a refrigerant compressor according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the same. In the figure, reference numeral 1 denotes a closed container, in which an electric motor 2 arranged below the inside thereof and a compressor section 7 driven by the electric motor 2 via a rotating shaft 3 are provided above. The compressor unit 7 controls the rotation of the eccentric pin 3 a provided on the rotating shaft 3 by the slider 4 and the piston 5.
Is converted into a reciprocating motion of the piston 5 through the cross slide portion 5a of the cylinder 6, and the piston 5 reciprocates in the cylinder 6.
【0009】シリンダ6にはその側部に吸入マフラ10
と、反回転軸方向である前部に弁座板8を介して吐出マ
フラ9とが備えられ、冷媒ガスの吸入と吐出径路が形成
されている。The cylinder 6 has a suction muffler 10 on its side.
A discharge muffler 9 is provided at a front portion, which is opposite to the rotation axis direction, via a valve seat plate 8, and a refrigerant gas suction and discharge path is formed.
【0010】また、密閉容器1の底部には圧縮機部7の
摺動部と、これを駆動する回転軸3の軸受摺動部14を
潤滑するための冷凍機油15を貯留しており、回転軸3
の下端部に設けられた遠心ポンプ16により冷凍機油1
5を汲み上げて、先ず軸受14との摺動部へ給油し、更
に回転軸3と偏芯ピン3aとの内径に備えた給油孔18
を通して上方に位置する圧縮機部7に給油している。In addition, a refrigerating machine oil 15 for lubricating a sliding part of the compressor part 7 and a bearing sliding part 14 of the rotating shaft 3 for driving the compressor part 7 is stored at the bottom of the sealed container 1. Axis 3
Refrigeration oil 1 by centrifugal pump 16 provided at the lower end of
5 and first supply oil to a sliding portion with the bearing 14, and further provide an oil supply hole 18 provided in the inner diameter of the rotating shaft 3 and the eccentric pin 3 a.
The oil is supplied to the compressor unit 7 located at the upper side through the cylinder.
【0011】圧縮機部7に給油された冷凍機油15は偏
芯ピン3aの外径に導かれ、スライダー4の内径及び外
径の摺動部を潤滑した後、ピストン5とスライダ4の往
復運動により摺動部の末端から周囲に飛散する。更にス
ライダ4に給油して残った余分の冷凍機油15は、偏芯
ピン3aの上端で開放された給油孔18から飛散する。
この飛散した冷凍機油15の一部は往復運動するピスト
ン5の外周面に油滴となって付着することで、ピストン
5の外周面とシリンダ6の内周面との摺動部を潤滑する
と共に、この摺動部の隙間をシールしている。The refrigerating machine oil 15 supplied to the compressor unit 7 is guided to the outer diameter of the eccentric pin 3a, and after lubricating the sliding parts of the inner and outer diameters of the slider 4, the reciprocating motion of the piston 5 and the slider 4 is performed. Scatters from the end of the sliding portion to the periphery. Further, the extra refrigerating machine oil 15 remaining after the oil is supplied to the slider 4 scatters from an oil supply hole 18 opened at the upper end of the eccentric pin 3a.
Part of the scattered refrigerating machine oil 15 adheres to the outer peripheral surface of the reciprocating piston 5 as oil droplets, thereby lubricating the sliding portion between the outer peripheral surface of the piston 5 and the inner peripheral surface of the cylinder 6 and The gap between the sliding portions is sealed.
【0012】図3は本発明の一実施形態である圧縮機部
7の詳細を示しており、回転軸3側のシリンダ端面から
所定寸法A(本実施形態では10mm)以内のシリンダ
6の内径を大きくして油溜り11を形成している。これ
により給油孔の上端から飛散し、油滴となってピストン
の外周面で主に上方に付着した冷凍機油は、ピストン5
がシリンダ6に挿入される圧縮行程でピストン5とシリ
ンダ6間の隙間に入り込むが、余った冷凍機油は油溜り
に貯油されると共に、下方の油溜りへと回り込み保油さ
れる。次に、ピストン5がシリンダ6から排出される吸
入行程で保油された冷凍機油は、ピストンの外周面全体
に満遍なく付着するため、ピストン5が往復運動を行う
ことでシリンダ6とピストン5間の隙間全周に亘って給
油することが可能になり、シール性と潤滑特性の改善が
図れる。FIG. 3 shows the details of the compressor section 7 according to an embodiment of the present invention. The inner diameter of the cylinder 6 within a predetermined dimension A (10 mm in this embodiment) from the cylinder end face on the rotating shaft 3 side is shown. The oil reservoir 11 is formed by making it larger. As a result, the refrigerating machine oil scattered from the upper end of the oil supply hole and formed as oil droplets and mainly adhered upward on the outer peripheral surface of the piston is removed from the piston 5.
Enters the gap between the piston 5 and the cylinder 6 in the compression stroke of being inserted into the cylinder 6, but the excess refrigerating machine oil is stored in the oil sump and spills into the lower oil sump to be retained. Next, the refrigerating machine oil retained in the suction stroke in which the piston 5 is discharged from the cylinder 6 adheres to the entire outer peripheral surface of the piston evenly. Oil can be supplied over the entire circumference of the gap, and the sealing performance and lubrication properties can be improved.
【0013】また、この油溜りはシリンダ内周面の粗加
工時に容易に形成にすることが可能であり、余分な工数
を必要といないことから性能と信頼性を向上した冷媒圧
縮機を低価格で提供できる。Further, the oil sump can be easily formed at the time of roughing the inner peripheral surface of the cylinder, and does not require an extra man-hour, so that a refrigerant compressor having improved performance and reliability can be manufactured at a low cost. Can be provided by
【0014】図4は本発明の別の実施形態で圧縮機部7
の詳細を示し、図5は、図4のB−B線における矢視断
面を示しており、回転軸3側のシリンダ端面には、上方
が大きいD寸法で、下方が小さいC寸法となる面取り1
2を形成している。これにより給油孔18から飛散し振
りかかる冷凍機油は、その多くが給油孔18の上端位置
に相当するシリンダの上部であることから、広い受面で
集油を行うことができ、シリンダ6とピストン5間の摺
動部へ給油する量を増すことが可能になる。FIG. 4 shows another embodiment of the present invention.
FIG. 5 is a cross-sectional view taken along the line BB in FIG. 4, and the cylinder end face on the side of the rotating shaft 3 has a chamfer having a large D dimension at the top and a small C dimension at the bottom. 1
2 are formed. As a result, most of the refrigerating machine oil scattered and sprinkled from the oil supply hole 18 can be collected on a wide receiving surface because most of the refrigerating machine oil is located above the cylinder corresponding to the upper end position of the oil supply hole 18. It is possible to increase the amount of oil supplied to the sliding portion between the five.
【0015】図6は本発明の別の実施形態で圧縮機部7
の詳細を示し、図7は、図6のE−E線における矢視の
状態を示しており、シリンダ6の上部にフェンス13を
立設すると共に、このフェンス13より回転軸3側のシ
リンダ6上部には、シリンダ6内と連通する孔17を形
成している。これにより給油孔18から飛散し振りかか
る冷凍機油は、その多くが給油孔18の上端位置に相当
するシリンダ6の上部であることから、振りかけられた
冷凍機油を効果的にフェンス13で集油すると共に、集
油した冷凍機油をシリンダ6内に供給することができ、
シリンダ6とピストン5間の摺動部へ確実に給油するこ
とが可能になる。FIG. 6 shows a compressor unit 7 according to another embodiment of the present invention.
FIG. 7 shows a state as viewed from the direction of the arrows EE in FIG. 6. A fence 13 is erected on the upper part of the cylinder 6 and the cylinder 6 on the rotation shaft 3 side of the fence 13. In the upper part, a hole 17 communicating with the inside of the cylinder 6 is formed. Thus, most of the refrigerating machine oil scattered and sprinkled from the refueling hole 18 is located above the cylinder 6 corresponding to the upper end position of the refueling hole 18, so that the sprinkled refrigerating machine oil is effectively collected by the fence 13. At the same time, the collected refrigerating machine oil can be supplied into the cylinder 6,
Oil can be reliably supplied to the sliding portion between the cylinder 6 and the piston 5.
【0016】以上説明したように、本発明ではシリンダ
6とピストン5間の摺動部への給油を回転軸側から行う
ことで、吐出ガス中に含まれる冷凍機油の量を増大させ
ることなくシリンダ6とピストン5間のシール性を向上
できると共に、摺動部の摩耗を防止することが可能にな
り、新冷媒を使用しても性能が良く信頼性の高い冷媒圧
縮機を供給することができる。As described above, in the present invention, the oil is supplied to the sliding portion between the cylinder 6 and the piston 5 from the rotating shaft side, so that the amount of the refrigerating machine oil contained in the discharge gas can be increased without increasing the amount of the refrigerating machine oil. The sealability between the piston 6 and the piston 5 can be improved, and the wear of the sliding portion can be prevented, so that a highly reliable refrigerant compressor can be supplied even when a new refrigerant is used. .
【0017】[0017]
【発明の効果】以上説明したように請求項1の発明によ
れば、冷凍機油を貯溜した密閉容器内に、電動機部と、
この電動機部の上部に回転軸を介して連結される圧縮機
部とを、回転軸心を垂直方向にして配設し、前記回転軸
に備えた給油機構の吸入口部となる回転軸下端部を冷凍
機油中に浸漬してなる冷媒圧縮機において、前記回転軸
の回転に伴って給油機構を上昇し回転軸上端部から前記
圧縮機部に振りかけられた冷凍機油の一部を、前記圧縮
機部の回転軸側シリンダ内周面とピストン外周面との隙
間へ導く手段として、回転軸側シリンダ端面から所定寸
法以内のシリンダ内径を大きく形成したことによって、
貯油のための容積を確保でき、シリンダとピストン間の
摺動部へ給油してシール性の向上を図ると共に、摺動部
の摩耗を防止することが可能になる。As described above, according to the first aspect of the present invention, the motor unit is provided in the closed container storing the refrigerating machine oil.
A compressor section connected to the upper portion of the electric motor section via a rotating shaft, a rotating shaft center disposed in a vertical direction, and a lower end of the rotating shaft serving as a suction port of an oil supply mechanism provided on the rotating shaft. In the refrigerant compressor, which is immersed in refrigeration oil, a part of the refrigeration oil sprinkled from the upper end of the rotation shaft to the compressor unit by raising the oil supply mechanism with the rotation of the rotation shaft, As a means to guide to the gap between the inner peripheral surface of the rotating shaft side cylinder and the outer peripheral surface of the piston of the part, by forming the cylinder inner diameter within a predetermined dimension from the rotating shaft side cylinder end surface to be large,
It is possible to secure a volume for oil storage, to improve the sealing performance by supplying oil to a sliding portion between the cylinder and the piston, and to prevent wear of the sliding portion.
【0018】請求項2の発明によれば、圧縮機部に振り
かけられた冷凍機油の一部をシリンダ内周面とピストン
外周面との隙間へ導く手段として、前記シリンダ内周面
の回転軸側の開口端に面取りを形成したことによって、
振りかけられた冷凍機油の集油を行うことができ、シリ
ンダとピストン間の摺動部へ給油する量を増すことが可
能になる。According to the second aspect of the present invention, as means for guiding a part of the refrigerating machine oil sprinkled on the compressor portion to the gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston, the rotating shaft side of the inner peripheral surface of the cylinder is provided. By forming a chamfer at the open end of
The sprinkled refrigerating machine oil can be collected, and the amount of oil supplied to the sliding portion between the cylinder and the piston can be increased.
【0019】請求項3の発明によれば、圧縮機部に振り
かけられた冷凍機油の一部をシリンダ内周面とピストン
外周面との隙間へ導く手段として、前記圧縮機部のシリ
ンダ上部にフェンスを立設すると共に、このフェンスよ
り回転軸側のシリンダ上部には、シリンダ内へ冷凍機油
を導入する孔を形成したことによって、振りかけられた
冷凍機油を集油すると共にシリンダ内に供給すること
で、シリンダとピストン間の摺動部へ確実に給油するこ
とが可能になる。According to the third aspect of the present invention, as a means for guiding a part of the refrigerating machine oil sprinkled on the compressor portion to the gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston, a fence is provided above the cylinder of the compressor portion. And a hole for introducing refrigerating machine oil into the cylinder is formed in the upper part of the cylinder on the rotating shaft side from this fence, so that the sprinkled refrigerating machine oil is collected and supplied into the cylinder. Thus, it is possible to reliably supply oil to the sliding portion between the cylinder and the piston.
【図1】本発明の一実施形態である冷媒圧縮機の内部構
造を示す平面図。FIG. 1 is a plan view showing the internal structure of a refrigerant compressor according to an embodiment of the present invention.
【図2】同冷媒圧縮機の内部構造を示す縦断面図。FIG. 2 is a vertical sectional view showing the internal structure of the refrigerant compressor.
【図3】同実施の形態で圧縮機部の詳細を示す図。FIG. 3 is a diagram showing details of a compressor unit in the embodiment.
【図4】本発明の別の実施形態で圧縮機部の詳細を示す
図。FIG. 4 is a diagram showing details of a compressor section according to another embodiment of the present invention.
【図5】図4のB−B線における矢視断面図。FIG. 5 is a sectional view taken along line BB of FIG. 4;
【図6】本発明の別の実施形態で圧縮機部の詳細を示す
図。FIG. 6 is a diagram showing details of a compressor section in another embodiment of the present invention.
【図7】図6のE−E線における矢視図。FIG. 7 is a view taken along the line EE in FIG. 6;
3 回転軸 5 ピストン 6 シリンダ 7 圧縮機部 11 油溜り 12 面取り 13 フェンス 15 冷凍機油 17 孔 3 Rotating shaft 5 Piston 6 Cylinder 7 Compressor section 11 Oil sump 12 Chamfer 13 Fence 15 Refrigerator oil 17 Hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大山 強 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 須田 章博 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 Fターム(参考) 3H003 AA02 AB03 AC03 BD06 BD10 CD03 CE02 CE04 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsuyoshi Oyama 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Akihiro Suda 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. F term (reference) 3H003 AA02 AB03 AC03 BD06 BD10 CD03 CE02 CE04
Claims (3)
機部と、この電動機部の上部に回転軸を介して連結され
る圧縮機部とを、回転軸心を垂直方向にして配設し、前
記回転軸に備えた給油機構の吸入口部となる回転軸下端
部を冷凍機油中に浸漬してなる冷媒圧縮機において、前
記回転軸の回転に伴って給油機構を上昇し回転軸上端部
から前記圧縮機部に振りかけられた冷凍機油の一部を、
前記圧縮機部の回転軸側シリンダ内周面とピストン外周
面との隙間へ導く手段として、回転軸側シリンダ端面か
ら所定寸法以内のシリンダ内径を大きく形成したことを
特徴とする冷媒圧縮機。1. A motor unit and a compressor unit connected to an upper part of the motor unit via a rotary shaft in a closed container storing the refrigerating machine oil, with a rotation axis centered in a vertical direction. In a refrigerant compressor in which a lower end of a rotary shaft serving as a suction port of a refueling mechanism provided on the rotary shaft is immersed in refrigerating machine oil, the refueling mechanism is moved upward with rotation of the rotary shaft to raise an upper end of the rotary shaft. A part of the refrigerating machine oil sprinkled on the compressor section from
A refrigerant compressor characterized in that a cylinder inner diameter within a predetermined dimension from a rotary shaft side cylinder end surface is formed to be large as means for guiding to a gap between a rotary shaft side cylinder inner circumferential surface and a piston outer circumferential surface of the compressor section.
部をシリンダ内周面とピストン外周面との隙間へ導く手
段として、前記シリンダ内周面の回転軸側の開口端に面
取りを形成したことを特徴とする請求項1に記載の冷媒
圧縮機。2. A chamfer is formed at an opening end of the inner peripheral surface of the cylinder on the rotating shaft side as a means for guiding a part of the refrigerating machine oil sprinkled on the compressor portion to a gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston. The refrigerant compressor according to claim 1, wherein:
部をシリンダ内周面とピストン外周面との隙間へ導く手
段として、前記圧縮機部のシリンダ上部にフェンスを立
設すると共に、このフェンスより回転軸側のシリンダ上
部には、シリンダ内へ冷凍機油を導入する孔を形成した
ことを特徴とする請求項1または請求項2に記載の冷媒
圧縮機。3. A means for guiding a part of the refrigerating machine oil sprinkled on the compressor portion into a gap between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston. The refrigerant compressor according to claim 1 or 2, wherein a hole for introducing refrigerating machine oil into the cylinder is formed in an upper portion of the cylinder on the rotation shaft side of the fence.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000260693A JP2002070742A (en) | 2000-08-30 | 2000-08-30 | Refrigerant compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000260693A JP2002070742A (en) | 2000-08-30 | 2000-08-30 | Refrigerant compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002070742A true JP2002070742A (en) | 2002-03-08 |
Family
ID=18748666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000260693A Pending JP2002070742A (en) | 2000-08-30 | 2000-08-30 | Refrigerant compressor |
Country Status (1)
Country | Link |
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JP (1) | JP2002070742A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100816835B1 (en) | 2006-12-27 | 2008-03-26 | 엘지전자 주식회사 | Structure of oil suppplying in hermetic compressor |
CN100465439C (en) * | 2004-06-02 | 2009-03-04 | Lg电子株式会社 | Oil supply apparatus for hermetic compressor |
JP2011080418A (en) * | 2009-10-07 | 2011-04-21 | Panasonic Corp | Hermetic compressor |
KR101053306B1 (en) * | 2004-06-09 | 2011-08-01 | 엘지전자 주식회사 | Piston of Hermetic Compressor |
JP2013224675A (en) * | 2013-08-07 | 2013-10-31 | Panasonic Corp | Hermetic compressor and apparatus comprising refrigeration cycle system having the same |
-
2000
- 2000-08-30 JP JP2000260693A patent/JP2002070742A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100465439C (en) * | 2004-06-02 | 2009-03-04 | Lg电子株式会社 | Oil supply apparatus for hermetic compressor |
KR101053306B1 (en) * | 2004-06-09 | 2011-08-01 | 엘지전자 주식회사 | Piston of Hermetic Compressor |
KR100816835B1 (en) | 2006-12-27 | 2008-03-26 | 엘지전자 주식회사 | Structure of oil suppplying in hermetic compressor |
JP2011080418A (en) * | 2009-10-07 | 2011-04-21 | Panasonic Corp | Hermetic compressor |
JP2013224675A (en) * | 2013-08-07 | 2013-10-31 | Panasonic Corp | Hermetic compressor and apparatus comprising refrigeration cycle system having the same |
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