JPS62194023A - Compressor - Google Patents
CompressorInfo
- Publication number
- JPS62194023A JPS62194023A JP61030859A JP3085986A JPS62194023A JP S62194023 A JPS62194023 A JP S62194023A JP 61030859 A JP61030859 A JP 61030859A JP 3085986 A JP3085986 A JP 3085986A JP S62194023 A JPS62194023 A JP S62194023A
- Authority
- JP
- Japan
- Prior art keywords
- cast iron
- graphite
- sliding
- iron powder
- 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.)
- Pending
Links
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 24
- 239000010439 graphite Substances 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 230000003405 preventing effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 8
- 239000011148 porous material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005057 finger movement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
Description
【発明の詳細な説明】
本発明は、圧縮板に係り、特に摺動面の強度及び指動性
向上に好適なベアリングを備えた圧縮機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compression plate, and more particularly to a compressor equipped with a bearing suitable for improving the strength and maneuverability of sliding surfaces.
従来の圧縮機を第３図に於て説明する。第３図はロータ
リ一式圧細払の縦断面図を示す。上部に固定子１と回転
子３から成る電動板部１を、下部にシリンダ２、上ベア
リング５、下ベアリング６、ローラー８、ベーン９゛か
らなる圧縮板構部２を配設し、電動板部１と圧縮板横部
２を回転軸７で連結し、それらをケーシング１０．１０
′、１０”で形成された密閉容器１０ａに収納し、固定
した構造となっている。ローラー８は、回転軸７の偏心
部７゛に回転自在に嵌入され、吸込穴（図示せず）より
吸入された冷媒は、ベーン９とローラー８及びシリンダ
２、上ベアリング５、下ベアリング６によって形成され
る圧縮室２ａに閉じ込められ、偏心部７°の回転と共に
圧縮され、圧縮室２ａ内の圧力が密閉容器１０ａの圧力
より多少高（なると吐出弁１１が１５０き、密閉容器１
０．ｉ内に流出する。A conventional compressor will be explained with reference to FIG. FIG. 3 shows a longitudinal cross-sectional view of the rotary compactor. An electric plate part 1 consisting of a stator 1 and a rotor 3 is disposed in the upper part, and a compression plate structure part 2 consisting of a cylinder 2, an upper bearing 5, a lower bearing 6, a roller 8, and a vane 9' is arranged in the lower part. The part 1 and the compression plate lateral part 2 are connected by the rotating shaft 7, and they are connected to the casing 10.10.
The roller 8 is housed in an airtight container 10a formed of 10" and 10", and is fixed in place. The sucked refrigerant is confined in the compression chamber 2a formed by the vane 9, roller 8, cylinder 2, upper bearing 5, and lower bearing 6, and is compressed as the eccentric part rotates by 7 degrees, and the pressure in the compression chamber 2a increases. The pressure is slightly higher than that of the closed container 10a.
0. flows into i.
密閉容器１０ａの下部にはも一１滑油１２が貯溜し、回
転軸７の１転に伴い給油ピース１２′及びひねり板１３
のポンプ作用により揚油し、回転軸７の給油穴１４．１
５．１６により夫々の摺動部へ潤滑油を輸送している。Lubricant oil 12 is stored in the lower part of the closed container 10a, and as the rotating shaft 7 rotates once, the oil supply piece 12' and the twist plate 13 are
The oil is pumped up by the pump action of
5.16, lubricating oil is transported to each sliding part.
かかる従来圧縮板の上ベアリング５、下ベアリング６、
回転軸７はその形状の点から通例的に鋳鉄で形成されて
いる。An upper bearing 5, a lower bearing 6 of such a conventional compression plate,
The rotating shaft 7 is usually made of cast iron because of its shape.
かかる鋳鉄同士の摺動に於ける欠点は摺動面に後述する
スケルトン構造が露出しているので、指動によってスケ
ルド砂ν脱落し、スケルトン内の鉄基地が摺動部或いは
電動機部１の間隙に侵入し、圧縮板構部２のロック事故
や、電動機絶縁部の破壊を誘発する原因となっていた。The disadvantage of such sliding between cast irons is that the skeleton structure, which will be described later, is exposed on the sliding surface, so the skeletal sand ν falls off due to finger movement, and the iron base in the skeleton falls into the sliding part or the gap between the electric motor part 1. This caused the compression plate structure 2 to lock up and the motor insulation to break down.
従って、鋳鉄同士の摺動部には、相当量の潤滑油を供給
し対応している。しかしながら、近年、圧縮板のインバ
ータ制御等が発達し、従来の定格電源周波数による回転
速度に対し、より低速から高速にわたって広範囲に運転
されることになり、油膜切れ等の摺動条件の悪化が生じ
て来ている。Therefore, a considerable amount of lubricating oil is supplied to the sliding parts of cast iron. However, in recent years, with the development of inverter control of compression plates, they are now operated over a wide range of speeds from low to high speeds compared to the conventional rated power frequency, resulting in deterioration of sliding conditions such as running out of oil film. It's coming.
第４図は、鋳鉄材料の摩耗の原理を説明するスケルトン
構造の一例を示すものである。スケルトン構造とは、黒
鉛で包まれた鉄基地よりなる鋳鉄構成の一単位組織のこ
とを言う。かかる単位組織が集合することによって鋳鉄
材が形成される。鋳鉄材料は第４図の円内に示す様に平
面的には黒鉛が独立している様に見えるが、実際には黒
鉛は内部で連続して露出している。その為、鋳鉄の基地
は黒鉛に囲まれて居り、外力が作出すると黒鉛と基地間
に存在する空隙を起点として、容易に変形成いは破壊す
ることになる。即ち、この現象が摺動時に一度グし生ず
ると次々に連続して破壊するのが鋳鉄の問題点である。FIG. 4 shows an example of a skeleton structure to explain the principle of wear of cast iron materials. Skeletal structure refers to a unitary structure of cast iron consisting of an iron matrix surrounded by graphite. A cast iron material is formed by aggregation of such unit structures. In a cast iron material, as shown in the circle in Fig. 4, the graphite appears to be independent on a plan view, but in reality, the graphite is continuously exposed inside. Therefore, the cast iron base is surrounded by graphite, and when external force is generated, it is easily deformed or destroyed starting from the voids existing between the graphite and the base. That is, the problem with cast iron is that once this phenomenon occurs during sliding, it will break one after another.
従って、鋳鉄の摺動材料は摩耗量及び摩耗粉粒子とも大
きく、圧縮機の速度変換等の多機能化に対応する上では
大きな問題となっている。Therefore, cast iron sliding materials have a large amount of wear and large particles of abrasion powder, which poses a major problem in responding to multi-functions such as speed conversion of compressors.
かかる鋳鉄材料の摩耗を防止するものとして、例えば、
特開昭５３−５４５４１号公報に示すように、摺動部材
を鋳鉄粉焼結材で成形する構造のものがある。To prevent wear of such cast iron materials, for example,
As shown in Japanese Unexamined Patent Publication No. 53-54541, there is a structure in which the sliding member is formed of sintered cast iron powder.
このものは、低カーボン軟鋼材で形成されたピストンと
スライド管を一体に構成するとともに、このスライド管
内に摺動自在に収納されるスライダーを鋳鉄粉焼結材で
成形したものである。This has a piston made of low-carbon mild steel and a slide tube integrated into one body, and a slider that is slidably housed within the slide tube and is molded from sintered cast iron powder.
従って、従来の鋳鉄と比較して強度面及び潤滑性の面で
改良されたスライダーを得ることができる。Therefore, a slider with improved strength and lubricity compared to conventional cast iron can be obtained.
上記従来技術は、焼結密度の範囲から見て、４≠寺為従
米の鋳鉄と比較して強度面、潤滑性の面で劣るという問
題点があった。The above-mentioned conventional technology has a problem in that it is inferior in terms of strength and lubricity compared to cast iron of 4≠Terame Junmai when viewed from the range of sintered density.
本発明の目的は、潤滑性が良く、しかも高強度の摺動Ｉ
ｎのベアリングを有する圧縮板を提供することにある。The object of the present invention is to provide a sliding I with good lubricity and high strength.
The object of the present invention is to provide a compression plate having n bearings.
上記目的は、回転軸が摺動する摺動面を有する摺動部材
を鋳鉄粉末の焼結材で形成した「−＝＝＝圧縮板におい
て、上記鋳鉄粉末は基地及びその周囲に遊離黒鉛が介在
されることにより達成される。The above purpose is to provide a compressed plate in which a sliding member having a sliding surface on which a rotating shaft slides is formed from a sintered material of cast iron powder, in which the cast iron powder has free graphite interposed in the base and its surroundings. This is achieved by
ベアリングは、鋳鉄粉末を用いて成形したので、上記ベ
アリングの摺動部は、基地中に繊維状の黒鉛、または空
孔周囲には遊離黒鉛が分散する。かかる遊器毘鉛は固体
潤ｙｅｔ Ｉｈ巣を有寸Ａと北に一全属接触防止を行な
う。Since the bearing was molded using cast iron powder, the sliding portion of the bearing has fibrous graphite in the matrix or free graphite dispersed around the holes. Such play equipment will prevent solid moisture from coming into contact with A and the north.
以下、本発明の一実施例を第１図と第２図に於て説明す
る。尚、従来と同一番号は同一物を示す。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Note that the same numbers as in the past indicate the same items.
第１図は、本発明を備えた上ベアリングの縦断面図、第
２図は本発明を備えたブツシュを一部に用いた上ベアリ
ングの縦断面図を示すものである。FIG. 1 is a longitudinal sectional view of an upper bearing provided with the present invention, and FIG. 2 is a longitudinal sectional view of an upper bearing partially using a bushing provided with the present invention.
第１図に於て、５は上ベアリングで、回転軸７が指動す
る摺動部５ａを有している。かかる上ベアリング５は前
記鋳鉄粉末を用いて、全体を成形したもので、摺動部５
ａは、第４図に示す様に基地中に繊維状の黒鉛、また空
孔周囲には遊離黒鉛が分散する。In FIG. 1, reference numeral 5 denotes an upper bearing, which has a sliding portion 5a on which the rotating shaft 7 moves. The upper bearing 5 is entirely molded using the cast iron powder, and the sliding portion 5
As shown in FIG. 4, in a, fibrous graphite is dispersed in the matrix and free graphite is dispersed around the pores.
第２図は、上ベアリング５を従来と同様鋳鉄材で形成し
、摺動部５ａのみに鋳鉄粉末の焼結により形成したブツ
シュ５ｂを挿入したものであり、前記第１図同様の摺動
部５８表面を得ることができる。In FIG. 2, the upper bearing 5 is made of cast iron as in the conventional case, and a bushing 5b formed by sintering cast iron powder is inserted only in the sliding part 5a, and the sliding part is the same as in FIG. 58 surfaces can be obtained.
以上、第１図、第２図に示した本発明実施例によれば、
摺動材料として優劣な特性を有する鋳鉄材料と同様に、
鉄基地中に微細に黒鉛を分散し、固体潤滑効果を発揮で
きると共に、予め粉末の表面に付着した遊離状黒鉛が、
摺動部間の金属接触防止効果を発揮する。また、該焼結
材中に現われた空孔には、潤滑油が侵入し油溜り効果（
油の保持性）を充分に発揮し、従来材で生ずる低速から
高速に亘る運転条件中に現出する油膜切れを完全に防止
できる。更にかかる焼結材によるベアリングで特異とす
る点は、鋳鉄に外力を加わえて破壊し、従来の鋳鉄に見
るスケルトン構造の単位（大きさ）より小さい粒子に粉
砕して形成した粉末を、成形焼結することにより、粉末
同士が基地間で密接に接合し、鋳鉄材に生じたスケルト
ン構造が消失することから、総じて摺動面の強度が増加
し、粒子が連続的に破壊脱落する従来付鋳鉄の摩耗現象
が発生しない。As described above, according to the embodiment of the present invention shown in FIGS. 1 and 2,
Similar to cast iron, which has superior properties as a sliding material,
By finely dispersing graphite in the iron matrix, it is possible to exert a solid lubricating effect, and the free graphite that has adhered to the surface of the powder in advance
Demonstrates the effect of preventing metal contact between sliding parts. In addition, lubricating oil enters the pores that appear in the sintered material, causing an oil pool effect (
It fully exhibits oil retention (oil retention) and can completely prevent oil film depletion that occurs with conventional materials during operating conditions ranging from low speeds to high speeds. What is unique about bearings made of sintered material is that the cast iron is fractured by applying an external force, and the powder formed by crushing it into particles smaller than the unit (size) of the skeleton structure seen in conventional cast iron is shaped and sintered. As a result, the powders are closely bonded between the bases, and the skeleton structure that occurs in cast iron materials disappears, which increases the strength of the sliding surface as a whole and causes particles to break and fall off continuously. No wear phenomenon occurs.
これは、焼結材の焼結密度を６．０〜６．４５ｇ／ｃｒ
Ａとしたことによる。This increases the sintered density of the sintered material to 6.0 to 6.45 g/cr.
This is due to the fact that A.
即ち、下限値である６、０ｇ／ｃＪは従来の鋳鉄で得ら
れる強度と同等以上の強度を保持できる範囲である。That is, the lower limit of 6.0 g/cJ is within the range in which a strength equal to or higher than that obtained with conventional cast iron can be maintained.
上限値である６、 ４５ ｇ ／ｃｎｌは焼結材の基地
中に形成される空孔の量がベアリング全体の約２０％以
上形成され、かかる空孔によって適切な油溜り効果が発
揮され１、潤滑性が向上する範囲である。The upper limit of 6.45 g/cnl means that the amount of pores formed in the base of the sintered material is approximately 20% or more of the entire bearing, and such pores exhibit an appropriate oil trapping effect. This is the range in which lubricity improves.
従って、本発明材料を用いたベアリング部を有する圧縮
機は、摩擦、厚耗特性に優れ、高信頼性の運転が可能と
なるばかりでな（、ベアリング成形素材は鋳鉄切粉等よ
り、容易に入手できる等の利点がある。Therefore, a compressor having a bearing part using the material of the present invention not only has excellent friction and wear characteristics and can be operated with high reliability (the bearing molding material is easily removed from cast iron chips, etc.). It has advantages such as availability.
かかる鋳鉄粉末は、溶製状態の固形団塊よりも切粉を用
いることで容易に得ることが出来る。粉砕した粉末の一
例は、参考写真２に示す様なスケルトン状から、更に細
かな黒鉛に沿った境界から粉砕された参考写真１に示す
様な状態になる。即ち、参考写真１は鋳鉄粉末の断面を
観察したものであり、基地中に鋳鉄特有の黒鉛が分散析
出して居り、また、その周囲には粉砕時に遊離した黒鉛
が一様に付着している。参考写真２は参考写真１に示す
鋳鉄粉末を成形プレスで抑圧成形した後。Such cast iron powder can be easily obtained by using chips rather than solid nodules in a molten state. An example of the pulverized powder changes from a skeleton shape as shown in Reference Photo 2 to a state as shown in Reference Photo 1 in which the powder is pulverized from the boundary along finer graphite. In other words, reference photo 1 shows a cross-section of cast iron powder. Graphite, which is unique to cast iron, is dispersed and precipitated in the matrix, and graphite released during crushing is uniformly attached around it. . Reference photo 2 shows the cast iron powder shown in reference photo 1 after being compressed and molded using a molding press.
焼結して得た材料の断面組織の一例を示すものである。It shows an example of a cross-sectional structure of a material obtained by sintering.
即ち、粉末の成形により接触した粒子間は拡散接合し、
確実に連続した状態を示し、面も基地中には繊維状に黒
鉛が分散している。また、鋳鉄の溶製材では得られない
空孔（黒い部分）が存在して居り、参考写真２で詳細に
観察出来ないが、空孔周囲に参考写真１に見る粉末の外
周に付着した遊離黒鉛が分散付着している。In other words, particles that come into contact with each other due to powder compaction form diffusion bonding,
It definitely shows a continuous state, and graphite is dispersed in the form of fibers in the base. In addition, there are pores (black parts) that cannot be obtained with ingot cast iron, and although they cannot be observed in detail in Reference Photo 2, free graphite adheres to the outer periphery of the powder shown in Reference Photo 1 around the pores. are dispersed and attached.
本発明によれば、潤滑性が良（、しかも堅牢な摺動面を
有するベアリングであるから、回転軸との摩耗がなく、
高寿命の圧縮板を得ることができる。According to the present invention, since the bearing has good lubricity (and has a robust sliding surface), there is no wear on the rotating shaft.
A compressed plate with a long life can be obtained.
第１図は、本発明に係わる一体成形、上ベアリングの縦
断面図、第２図は本発明に係わるブツシュを用いた上ベ
アリングの縦断面図、第３図は従来公知ロータリー圧縮
機の構造の一例を示す縦断面図、第４図は鋳鉄の基地と
黒鉛の存在状態（ス）ｒ Ｊｌ−ｋ ｙ鱈、′ｌン）の
−軸１ん云す餌存Ｍア本スト・・電動機部、１・・・固
定子、２・・・圧縮機構部、２・・・シリンダ、２ｍ・
・・圧縮室、３・・・回転子、５・・・上ベアリング、
５ト・・摺動部、５ｂ・・・ブツシュ、６・・・下ベア
リング、７・・・回転軸、８・・・ローラー、９・・・
ベーン、１０・１０′・１０”・・・ケーシング、１０
、・・・密閉室、１１・・・吐出弁、１２・・・潤滑油
、１２′・・・給油ピース、１３・・・ひねり板、１４
・１５・１６・・・給油穴。Fig. 1 is a vertical sectional view of an integrally molded upper bearing according to the present invention, Fig. 2 is a longitudinal sectional view of an upper bearing using a bushing according to the present invention, and Fig. 3 is a longitudinal sectional view of the structure of a conventionally known rotary compressor. A vertical cross-sectional view showing an example, Fig. 4 shows the presence of the cast iron base and graphite (S) r Jl-k y Cod, 'ln) - axis 1 of the bait present M mainst... electric motor section , 1... Stator, 2... Compression mechanism section, 2... Cylinder, 2m.
...Compression chamber, 3...Rotor, 5...Upper bearing,
5... Sliding part, 5b... Bush, 6... Lower bearing, 7... Rotating shaft, 8... Roller, 9...
Vane, 10/10'/10"...Casing, 10
,... sealed chamber, 11... discharge valve, 12... lubricating oil, 12'... oil supply piece, 13... twist plate, 14
・15・16...Oil supply hole.
Claims (1)
末の焼結材で形成した圧縮機において、上記鋳鉄粉末は
基地及びその周囲に遊離黒鉛が介在していることを特徴
とする圧縮機。 ２、上記鋳鉄粉末の密度を６．０〜６．４５ｇ／ｃｍ＾
３としたことを特徴とする特許請求の範囲第１項記載の
圧縮機。 ３、上記指動部材の摺動面部のみを鋳鉄粉末の焼結材で
形成したことを特徴とする特許請求の範囲第１項記載の
圧縮機。[Claims] 1. In a compressor in which a sliding member having a sliding surface on which a rotating shaft slides is formed of a sintered material of cast iron powder, the cast iron powder has free graphite interposed in the matrix and its surroundings. A compressor characterized by: 2. The density of the above cast iron powder is 6.0 to 6.45 g/cm^
3. The compressor according to claim 1, characterized in that: 3. The compressor according to claim 1, wherein only the sliding surface portion of the finger member is made of sintered cast iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030859A JPS62194023A (en) | 1986-02-17 | 1986-02-17 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030859A JPS62194023A (en) | 1986-02-17 | 1986-02-17 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62194023A true JPS62194023A (en) | 1987-08-26 |
Family
ID=12315447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61030859A Pending JPS62194023A (en) | 1986-02-17 | 1986-02-17 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62194023A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158170A1 (en) * | 1994-04-28 | 2001-11-28 | Kabushiki Kaisha Toshiba | Compressor |
| CN104100517A (en) * | 2014-07-25 | 2014-10-15 | 吉首长潭泵业有限公司 | Abrasion-resistant alloy mortar pump cover and manufacturing method thereof |
| CN105370538A (en) * | 2015-11-09 | 2016-03-02 | 珠海凌达压缩机有限公司 | Flange assembly, compressor, heat exchange equipment and machining method for compressor |
-
1986
- 1986-02-17 JP JP61030859A patent/JPS62194023A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158170A1 (en) * | 1994-04-28 | 2001-11-28 | Kabushiki Kaisha Toshiba | Compressor |
| EP1158171A1 (en) * | 1994-04-28 | 2001-11-28 | Kabushiki Kaisha Toshiba | Compressor |
| CN104100517A (en) * | 2014-07-25 | 2014-10-15 | 吉首长潭泵业有限公司 | Abrasion-resistant alloy mortar pump cover and manufacturing method thereof |
| CN105370538A (en) * | 2015-11-09 | 2016-03-02 | 珠海凌达压缩机有限公司 | Flange assembly, compressor, heat exchange equipment and machining method for compressor |
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