JPH05141375A - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JPH05141375A JPH05141375A JP30156191A JP30156191A JPH05141375A JP H05141375 A JPH05141375 A JP H05141375A JP 30156191 A JP30156191 A JP 30156191A JP 30156191 A JP30156191 A JP 30156191A JP H05141375 A JPH05141375 A JP H05141375A
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- vane
- cylinder
- roller
- bearing
- 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
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷凍サイクル等に使用
する回転式圧縮機に関し、特に、機械損失の軽減に係
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary compressor used in a refrigeration cycle or the like, and more particularly to reducing mechanical loss.
【０００２】[0002]
【従来の技術】従来の構成を図４から図６を用いて説明
する。2. Description of the Related Art A conventional structure will be described with reference to FIGS.
【０００３】１は回転式圧縮機であり、密閉ケーシング
２，電動機部３，圧縮機部４とから構成され、これら電
動機部３と圧縮機部４とはシャフト５を介して連結され
ている。シャフト５は、主軸５ａ，副軸５ｂ，クランク
５ｃとからなり、主軸５ａの一端には、電動機部３のロ
ータ６が接続されている。また、圧縮機部４は、シリン
ダ７，ローラ８，ベーン９，主軸受１０，副軸受１１と
により構成されている。ベーン９は平行平板であり、シ
リンダ７のスリット状のベーン溝７ａ内をローラ８の動
きに連動して往復運動する。１２はベーン背面に設けら
れたスプリングである。A rotary compressor 1 is composed of a hermetic casing 2, an electric motor part 3 and a compressor part 4. The electric motor part 3 and the compressor part 4 are connected via a shaft 5. The shaft 5 is composed of a main shaft 5a, a sub shaft 5b, and a crank 5c, and the rotor 6 of the electric motor unit 3 is connected to one end of the main shaft 5a. The compressor unit 4 is composed of a cylinder 7, rollers 8, vanes 9, a main bearing 10, and a sub bearing 11. The vane 9 is a parallel plate, and reciprocates in the slit-shaped vane groove 7 a of the cylinder 7 in association with the movement of the roller 8. Reference numeral 12 is a spring provided on the back surface of the vane.
【０００４】１３は圧縮部であり、シリンダ７内で、主
軸受１０，副軸受１１により構成されている。さらに圧
縮部１３は、シャフト５のクランク５ｃに嵌合され偏心
回転するローラ８と、ローラ８に当接するベーン９とに
より吸入室１３ａと圧縮室１３ｂに仕切られている。Reference numeral 13 denotes a compression section, which is composed of a main bearing 10 and a sub bearing 11 in the cylinder 7. Further, the compression portion 13 is partitioned into a suction chamber 13a and a compression chamber 13b by a roller 8 fitted to the crank 5c of the shaft 5 and eccentrically rotated, and a vane 9 contacting the roller 8.
【０００５】１４は吸入管、１５は吐出管であり、吸入
管１４は副軸受１１を介してシリンダ７の吸入孔１６と
連通し、また吐出管１５は密閉ケーシング２内に開放し
ている。Reference numeral 14 is a suction pipe, and 15 is a discharge pipe. The suction pipe 14 communicates with a suction hole 16 of the cylinder 7 through an auxiliary bearing 11, and the discharge pipe 15 is open in the closed casing 2.
【０００６】また１７は吐出孔であり、吐出弁１８を介
して圧縮室１３ｂと密閉ケーシング２内を連通する。１
９は密閉ケーシング下部に設けられた潤滑油である。A discharge hole 17 communicates the compression chamber 13b with the inside of the closed casing 2 through a discharge valve 18. 1
Reference numeral 9 is a lubricating oil provided under the closed casing.
【０００７】以上のように構成された圧縮機について、
以下その動作を冷媒ガスの流れについて説明する。Regarding the compressor configured as described above,
The operation will be described below with respect to the flow of the refrigerant gas.
【０００８】冷却システム（図示せず）からの低温低圧
の冷媒ガスは、吸入管１４，吸入孔１６より導かれシリ
ンダ７内の吸入室１３ａに至る。吸入室１３ａに至った
冷媒ガスは、電動機部３の回転に伴うシャフト５の回転
運動により漸次圧縮されながら、吸入孔１６から吐出孔
１７へ連続的に送られる。A low-temperature low-pressure refrigerant gas from a cooling system (not shown) is guided through a suction pipe 14 and a suction hole 16 and reaches a suction chamber 13a in the cylinder 7. The refrigerant gas reaching the suction chamber 13a is continuously sent from the suction hole 16 to the discharge hole 17 while being gradually compressed by the rotational movement of the shaft 5 accompanying the rotation of the electric motor unit 3.
【０００９】圧縮された冷媒ガスは、吐出孔１７，吐出
弁１８を経て吐出される。吐出された高温高圧の冷媒ガ
スは、密閉ケーシング２内を満たし、吐出管１３を介し
て冷却システムに吐出される。The compressed refrigerant gas is discharged through the discharge hole 17 and the discharge valve 18. The discharged high-temperature and high-pressure refrigerant gas fills the closed casing 2 and is discharged to the cooling system via the discharge pipe 13.
【００１０】ここで、シリンダ７内を吸入室１３ａと圧
縮室１３ｂとに仕切るベーン９の背面の圧力は、密閉ケ
ーシング内に開放されていることから吐出圧力と同じ高
圧となり、ベーン９の先端はこのシリンダ７内外の圧力
差で、シャフト５によりシリンダ７内を偏心回転するロ
ーラ８の外周に当接している。Here, the pressure on the back surface of the vane 9 which divides the inside of the cylinder 7 into the suction chamber 13a and the compression chamber 13b becomes the same high pressure as the discharge pressure because it is opened in the closed casing, and the tip of the vane 9 is Due to the pressure difference between the inside and the outside of the cylinder 7, the shaft 5 is in contact with the outer circumference of the roller 8 which eccentrically rotates inside the cylinder 7.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら上記の様
な構成では、ベーン背面に加わる高圧圧力により、ベー
ンがチャタリングを生じない最適なベーン押付力より
も、かなり過大なベーン押付力でローラに押付けられて
おり、ベーン先端の摩擦による摺動損失が大きい問題点
があった。However, in the above-described structure, the high pressure applied to the back surface of the vane causes the vane to be pressed against the roller with a significantly larger vane pressing force than the optimum vane pressing force that does not cause chattering. However, there is a problem that sliding loss due to friction at the tip of the vane is large.
【００１２】さらに過大なベーン押付力はベーン先端及
びローラ外周の磨耗を生じ、回転式圧縮機の信頼性低下
させていた。Further, the excessive vane pressing force causes abrasion of the tip of the vane and the outer periphery of the roller, thus lowering the reliability of the rotary compressor.
【００１３】また、摺動損失を低減するためにベーンの
厚みを薄くし受圧面積を小さくすれば、圧縮室と吸入室
とのシール距離が短くなり漏れが増加し、体積効率が悪
化する問題点があった。Further, if the vane is made thin and the pressure receiving area is made small in order to reduce the sliding loss, the sealing distance between the compression chamber and the suction chamber becomes short, leakage increases, and volume efficiency deteriorates. was there.
【００１４】本発明は上記従来の回転圧縮機の問題点を
解決するものであり、簡単な構成により摺動損失の少な
い信頼性の高い回転式圧縮機の提供を目的とする。The present invention solves the problems of the conventional rotary compressors described above, and an object thereof is to provide a highly reliable rotary compressor having a simple structure and a small sliding loss.
【００１５】[0015]
【課題を解決するための手段】上記目的を達成するため
に本発明の回転式圧縮機は、ローラと当接しシリンダの
ベーン溝内に摺動自在に収納されるベーンを備え、ベー
ンが、主軸受と副軸受に面する第１仕切板と第２仕切板
と、第１仕切板と第２仕切板の間に挟まれ、かつ第１仕
切板と第２仕切板より厚みの薄い第３仕切板により構成
され、第１仕切板と第３仕切板及び第２仕切板と第３仕
切板とがベーンの厚さ方向で可動となるように係止する
嵌合部とを備えている。In order to achieve the above object, a rotary compressor of the present invention comprises a vane that abuts a roller and is slidably accommodated in a vane groove of a cylinder. The first partition plate and the second partition plate facing the bearing and the sub-bearing, and the third partition plate that is sandwiched between the first partition plate and the second partition plate and is thinner than the first partition plate and the second partition plate. The first partition plate and the third partition plate, and the second partition plate and the third partition plate are provided with a fitting portion that is locked so as to be movable in the thickness direction of the vane.
【００１６】[0016]
【作用】本発明は上記した構成により、ベーン中央部の
み厚みを薄くできるので、圧縮室から吸入室への漏れを
増加させることなく、ベーン背面の受圧面積を小さくで
き、ベーン背面に加わる背圧荷重を軽減できるので、ベ
ーン先端の摩耗による摺動損失を小さくでき、ベーン先
端及びローラ外周の摩耗も少なくなり信頼性を向上でき
る。According to the present invention, since the thickness of only the central portion of the vane can be reduced by the above-mentioned structure, the pressure receiving area on the back surface of the vane can be reduced without increasing the leakage from the compression chamber to the suction chamber, and the back pressure applied to the back surface of the vane Since the load can be reduced, the sliding loss due to the wear of the tip of the vane can be reduced, and the wear of the tip of the vane and the outer circumference of the roller can be reduced to improve the reliability.
【００１７】また、ベーンとベーン溝の嵌合は、上記し
た構成では、ベーン溝が３つの溝から形成されており、
ベーンを一体で加工する場合、マッチングするのが困難
である。そこでベーンを、第１仕切板，第２仕切板，第
３仕切板とに分割し、それぞれの仕切板が厚さ方向にお
いて摺動可能となる嵌合部を有しているため、各仕切板
の高さ及び巾寸法をベーン溝の各溝部とマッチングする
だけで済み、ベーン溝の各溝の中心線を一致させること
までも考慮してベーンを加工する必要がなく、組立性が
向上する。Further, in the fitting of the vane and the vane groove, in the above-mentioned structure, the vane groove is formed by three grooves,
When the vanes are integrally processed, it is difficult to match them. Therefore, the vane is divided into a first partition plate, a second partition plate, and a third partition plate, and each partition plate has a fitting portion that is slidable in the thickness direction. It is only necessary to match the height and width dimensions of the vane groove with the respective groove portions of the vane groove, and it is not necessary to process the vane in consideration of matching the center lines of the respective vane grooves, and the assemblability is improved.
【００１８】[0018]
【実施例】以下本発明の一実施例を図１から図３を参照
にして説明する。なお従来例と同一部分は同一符号を付
し詳細な説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same parts as those of the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.
【００１９】２０はベーンであり、第１仕切板２１，第
２仕切板２２，第３仕切板２３とにより構成されてい
る。第３仕切板２３は、第１仕切板２１、第２仕切板２
２より厚みが薄くなっており第１仕切板２１と第２仕切
板２２は従来と同等の厚みである。２４，２５は仕切板
２１，２２，２３の上下面に設けられた嵌合部であり、
第３仕切板に装着されているピン２４ａ，２５ａと、第
１仕切板２１，第２仕切板２２にそれぞれ設けられた凹
部２４ｂ，２５ｂよりなる。Reference numeral 20 denotes a vane, which is composed of a first partition plate 21, a second partition plate 22, and a third partition plate 23. The third partition plate 23 includes the first partition plate 21 and the second partition plate 2.
The thickness is thinner than 2, and the first partition plate 21 and the second partition plate 22 have the same thickness as the conventional one. 24 and 25 are fitting portions provided on the upper and lower surfaces of the partition plates 21, 22 and 23,
It comprises pins 24a and 25a mounted on the third partition plate and recesses 24b and 25b provided on the first partition plate 21 and the second partition plate 22, respectively.
【００２０】また嵌合部２４，２５は、厚さ方向におい
て可動となりクリアランスを有している。The fitting portions 24 and 25 are movable in the thickness direction and have a clearance.
【００２１】２６はシリンダであり、ベーン２０と摺動
自在に嵌合するベーン溝２７を有している。ベーン溝２
７は、第１仕切板２１と嵌合する溝２７ａと、第２仕切
板２２と嵌合する溝２７ｂと、第３仕切板２３と嵌合す
る溝２７ｃとにより構成される。Reference numeral 26 is a cylinder having a vane groove 27 slidably fitted in the vane 20. Vane groove 2
7 is composed of a groove 27a fitted with the first partition plate 21, a groove 27b fitted with the second partition plate 22, and a groove 27c fitted with the third partition plate 23.
【００２２】以上のように構成された回転式圧縮機にお
いて、以下その動作を説明する。冷却システムからの低
温低圧の冷媒ガスは、従来と同様に吸入管１４，吸入孔
１６を経てシリンダ２１内の吸入室１３ａに至る。冷媒
ガスは従来と同様に圧縮され吐出管１５によりシステム
へ吐出される。The operation of the rotary compressor having the above structure will be described below. The low-temperature low-pressure refrigerant gas from the cooling system reaches the suction chamber 13a in the cylinder 21 through the suction pipe 14 and the suction hole 16 as in the conventional case. Refrigerant gas is compressed and discharged to the system through the discharge pipe 15 as in the conventional case.
【００２３】ここで、ベーン２０の中央部である第３仕
切板２３の厚みが薄くなっているので、従来より受圧面
積が小さくなり、ベーン背面に加わる背圧荷重も小さく
なる。そのためローラ８とベーン２０の接触荷重が従来
に比べ小さくなり摺動損失が軽減できる。Here, since the thickness of the third partition plate 23, which is the central portion of the vane 20, is thin, the pressure receiving area is smaller than before and the back pressure load applied to the back surface of the vane is also smaller. Therefore, the contact load between the roller 8 and the vane 20 is smaller than in the conventional case, and the sliding loss can be reduced.
【００２４】また、ベーン２０の先端及びローラ８外周
の摩耗量も減少し信頼性が向上する。Further, the wear amount of the tip of the vane 20 and the outer periphery of the roller 8 is reduced, and the reliability is improved.
【００２５】そして、第１仕切板２１、第２仕切板２２
は従来と同等の肉厚であるので圧縮室から吸入室への漏
れを増加することがない。Then, the first partition plate 21 and the second partition plate 22
Since has the same thickness as the conventional one, leakage from the compression chamber to the suction chamber does not increase.
【００２６】さらに、ベーン２０とベーン溝２７のマッ
チングにおいて、ベーン溝２７の形状に合わせてベーン
２０を加工する必要があるが、ベーン２０が分割されて
いるためベーン２０の各要素、仕切板２１，２２，２３
とベーン溝２７の各要素、溝２７ａ，２７ｂ，２７ｃの
それぞれの高さ、及び巾のみでマッチングするだけで済
む。また、組立時に嵌合部２４，２５により、溝２７
ａ，２７ｂ，２７ｃと仕切板２１，２２，２３の中心線
ＡＢＣのズレが吸収されるため、中心線を一致させる必
要がなく組立性が向上する。Furthermore, in matching the vane 20 and the vane groove 27, it is necessary to process the vane 20 according to the shape of the vane groove 27, but since the vane 20 is divided, each element of the vane 20 and the partition plate 21. , 22, 23
It suffices to match only the respective elements of the vane groove 27 and the respective heights and widths of the grooves 27a, 27b, 27c. Further, the groove 27 is formed by the fitting portions 24 and 25 during assembly.
Since the deviation between the center lines ABC of the partition plates a, 27b, 27c and the partition plates 21, 22, 23 is absorbed, it is not necessary to match the center lines, and the assemblability is improved.
【００２７】以上のように本実施例の回転式圧縮機はベ
ーン２０端面での圧縮室１３ｂから吸入室１３ａへの漏
れを増加させることなく、ベーン２０背面の受圧面積を
減少でき、ベーン２０背面にかかる背圧荷重を軽減でき
る。そのためベーン２０先端とローラ８の摺動損失が低
減でき、接触部の摩耗も少なくなり、機械損失の少ない
信頼性の高い圧縮機を実現できる。As described above, the rotary compressor of this embodiment can reduce the pressure receiving area on the back surface of the vane 20 without increasing the leakage from the compression chamber 13b to the suction chamber 13a at the end surface of the vane 20, and the back surface of the vane 20 can be reduced. The back pressure load on the can be reduced. Therefore, sliding loss between the tip of the vane 20 and the roller 8 can be reduced, wear of the contact portion is reduced, and a highly reliable compressor with less mechanical loss can be realized.
【００２８】また、ベーン２０が仕切板２１，２２，２
３により構成されており、また各仕切板２１，２２，２
３が厚さ方向において可動となる嵌合部２４，２５を有
しているので、ベーン溝２７とのマッチングが容易であ
り、ベーン２０の形状を一体で加工する時よりも組立性
が向上する。Further, the vane 20 has partition plates 21, 22, 2
It is constituted by 3, and each partition plate 21, 22, 2
Since 3 has the fitting portions 24 and 25 that are movable in the thickness direction, matching with the vane groove 27 is easy, and the assemblability is improved as compared with the case where the vane 20 is integrally machined. ..
【００２９】[0029]
【発明の効果】以上のように本発明は、密閉ケーシング
と、密閉ケーシング内に収納されたシリンダと、シリン
ダの両端に固定された主軸受および副軸受と、主軸受と
副軸受内に回転自在に収納されクランクを有するシャフ
トと、シャフトのクランクに嵌められシリンダ内を偏心
回転するローラと、シリンダに設けられたベーン溝と、
ローラと当接しシリンダのベーン溝内に摺動自在に収納
されるベーンとを備え、ベーンが、主軸受と副軸受に面
する第１仕切板と第２仕切板と、かつ第１仕切板と第２
仕切板の間に挟まれ、かつ第１仕切板と第２仕切板より
厚みの薄い第３仕切板により構成され、第１仕切板と第
３仕切板及び第２仕切板と第３仕切板とがベーンの厚さ
方向で可動となるように係止する嵌合部とを備えた回転
式圧縮機であるので、ベーン端面での圧縮室から吸入室
への漏れを増加させることなく、ベーン背面の受圧面積
を減少でき、ベーン背面にかかる背圧荷重を軽減でき
る。As described above, according to the present invention, the closed casing, the cylinder housed in the closed casing, the main bearing and the sub bearing fixed to both ends of the cylinder, and the main bearing and the sub bearing are freely rotatable. A shaft having a crank housed in, a roller fitted into the crank of the shaft and eccentrically rotating in the cylinder, and a vane groove provided in the cylinder,
A vane that is in contact with the roller and is slidably accommodated in the vane groove of the cylinder, the vane including a first partition plate and a second partition plate facing the main bearing and the sub bearing, and a first partition plate. Second
The third partition plate is sandwiched between partition plates and is thinner than the first partition plate and the second partition plate, and the first partition plate and the third partition plate and the second partition plate and the third partition plate are vanes. Since it is a rotary compressor equipped with a fitting part that locks so that it can move in the thickness direction, it does not increase the leakage from the compression chamber to the suction chamber at the end face of the vane, The area can be reduced and the back pressure load on the back of the vane can be reduced.
【００３０】そのため、ベーン先端とローラの摺動損失
が低減でき、接触部の摩耗も少なくなり、機械損失の少
ない信頼性の高い圧縮機を実現できる。Therefore, sliding loss between the tip of the vane and the roller can be reduced, wear of the contact portion is reduced, and a highly reliable compressor with less mechanical loss can be realized.
【００３１】また、ベーンが３つの仕切板より構成され
ており、また、各仕切板が厚さ方向において可動となる
嵌合部を有しているので、ベーン溝とのマッチングが容
易であり、ベーンを一体で加工する時よりも、組立性が
向上する。Further, since the vane is composed of three partition plates, and each partition plate has a fitting portion that is movable in the thickness direction, matching with the vane groove is easy, Assembling is improved compared to when the vanes are machined together.
【図１】本発明の一実施例を示す回転式圧縮機の要部拡
大斜視図FIG. 1 is an enlarged perspective view of a main part of a rotary compressor showing an embodiment of the present invention.
【図２】本発明の一実施例を示す回転式圧縮機の要部拡
大図FIG. 2 is an enlarged view of a main part of a rotary compressor showing an embodiment of the present invention.
【図３】本発明の一実施例を示す回転式圧縮機の断面図FIG. 3 is a sectional view of a rotary compressor showing an embodiment of the present invention.
【図４】従来の回転式圧縮機の縦断面図FIG. 4 is a vertical sectional view of a conventional rotary compressor.
【図５】従来の回転式圧縮機の断面図FIG. 5 is a sectional view of a conventional rotary compressor.
【図６】従来の回転式圧縮機のベーン周辺の拡大図FIG. 6 is an enlarged view around a vane of a conventional rotary compressor.
２ 密閉ケーシング ５ シャフト ８ ローラ １０ 主軸受 １１ 副軸受 ２０ ベーン ２１ 第１仕切板 ２２ 第２仕切板 ２３ 第３仕切板 ２４，２５ 嵌合部 ２６ シリンダ ２７ ベーン溝 2 Closed casing 5 Shaft 8 Roller 10 Main bearing 11 Sub bearing 20 Vane 21 First partition plate 22 Second partition plate 23 Third partition plate 24, 25 Fitting part 26 Cylinder 27 Vane groove
Claims (1)
内に収納されたシリンダと、前記シリンダの両端に固定
された主軸受および副軸受と、前記主軸受と副軸受内に
回転自在に収納されクランクを有するシャフトと、前記
シャフトのクランクに嵌められ前記シリンダ内を偏心回
転するローラと、前記シリンダに設けられたベーン溝
と、前記ローラと当接し前記シリンダのベーン溝内に摺
動自在に収納されるベーンとを備え、前記ベーンが、前
記主軸受と副軸受に面する第１仕切板と第２仕切板と、
前記第１仕切板と第２仕切板の間に挟まれ、かつ前記第
１仕切板と第２仕切板より厚みの薄い第３仕切板により
構成され、前記第１仕切板と第３仕切板及び第２仕切板
と第３仕切板とがベーンの厚さ方向で可動となるように
係止する嵌合部とを有する回転式圧縮機。1. A hermetic casing, a cylinder housed in the hermetic casing, a main bearing and a sub bearing fixed to both ends of the cylinder, and a crank rotatably housed in the main bearing and the sub bearing. A shaft having; a roller fitted into a crank of the shaft to eccentrically rotate in the cylinder; a vane groove provided in the cylinder; and a slidably housed in the vane groove of the cylinder in contact with the roller. A vane, the vane having a first partition plate and a second partition plate facing the main bearing and the auxiliary bearing;
A third partition plate sandwiched between the first partition plate and the second partition plate and having a thickness smaller than that of the first partition plate and the second partition plate, and the first partition plate, the third partition plate, and the second partition plate. A rotary compressor comprising: a partition plate and a third partition plate, and a fitting portion that locks the partition plate so as to be movable in the thickness direction of the vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30156191A JPH05141375A (en) | 1991-11-18 | 1991-11-18 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30156191A JPH05141375A (en) | 1991-11-18 | 1991-11-18 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05141375A true JPH05141375A (en) | 1993-06-08 |
Family
ID=17898423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30156191A Pending JPH05141375A (en) | 1991-11-18 | 1991-11-18 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05141375A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2838026A1 (en) * | 1978-08-31 | 1980-03-13 | Sakura Color Prod Corp | Prodn. of pencil leads with increased strength and wear resistance - from mixts. of graphite, nigrosine and wax emulsion |
| CN104612975A (en) * | 2015-01-26 | 2015-05-13 | 广东美芝制冷设备有限公司 | Air cylinder structure of rotary compressor and rotary compressor provided with air cylinder structure |
| CN111502991A (en) * | 2020-04-29 | 2020-08-07 | 广东美芝制冷设备有限公司 | Rotary compressor, sliding plate assembly thereof and refrigeration cycle system |
| CN111720311A (en) * | 2020-06-18 | 2020-09-29 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration cycle system |
-
1991
- 1991-11-18 JP JP30156191A patent/JPH05141375A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2838026A1 (en) * | 1978-08-31 | 1980-03-13 | Sakura Color Prod Corp | Prodn. of pencil leads with increased strength and wear resistance - from mixts. of graphite, nigrosine and wax emulsion |
| CN104612975A (en) * | 2015-01-26 | 2015-05-13 | 广东美芝制冷设备有限公司 | Air cylinder structure of rotary compressor and rotary compressor provided with air cylinder structure |
| CN111502991A (en) * | 2020-04-29 | 2020-08-07 | 广东美芝制冷设备有限公司 | Rotary compressor, sliding plate assembly thereof and refrigeration cycle system |
| CN111720311A (en) * | 2020-06-18 | 2020-09-29 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration cycle system |
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