JP2005163800A - 回転圧縮機 - Google Patents
回転圧縮機 Download PDFInfo
- Publication number
- JP2005163800A JP2005163800A JP2005045602A JP2005045602A JP2005163800A JP 2005163800 A JP2005163800 A JP 2005163800A JP 2005045602 A JP2005045602 A JP 2005045602A JP 2005045602 A JP2005045602 A JP 2005045602A JP 2005163800 A JP2005163800 A JP 2005163800A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- roller
- rotary compressor
- sliding contact
- cylinder
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
【解決手段】 ベーンのローラとの摺接部における曲率半径(Rv)(cm)が次式(1)で表されるようなベーンを用いる。
T<Rv<Rr 式(1)
[但し、式(1)中、Tはベーンの厚さ(cm)、Rrはベーンと摺接するローラの外周曲率半径(cm)を表す。]
【選択図】 図1
Description
(式(9)中のFv、L、dは式(6)、式(7)のものと同じである)
このように面接触をし、ヘルツ応力が増大すると、分子中に塩素を含まない冷媒を用い、潤滑油としてポリオールエステル、またはポリビニルエーテルを基油として用いた回転圧縮機のベーン40は、耐磨耗性の向上のため窒化処理やCrNのイオンコーティングなどの表面処理が行われているが、窒化処理はその耐力が十分でなく、また、CrNのイオンコーティングは、コーティング層の剥離の危険性があるとともに生産コスト高になるなどの欠点があった。
[但し、式(1)中、Tはベーンの厚さ(cm)、Rrはベーンと摺接するローラの外周曲率半径(cm)を表す。]
また、請求項1記載の回転圧縮機において、ベーンのローラとの摺接部における摺接面を確保するため、回転軸の回転中心(O1)とローラ中心(O2)の偏心量(cm)をEとし、ベーンの曲率半径(Rv)の中心(O3)とローラ中心(O2)とを結ぶ直線(L1)が中心(O3)と回転中心(O1)とを結ぶ直線(L2)となす角度をαとし、直線(L1)がローラの外周に交わる点と直線(L2)がローラの外周に交わる点との間の摺動距離をevとした時、T、Rv、Rr、E、α、evが次式(2)〜(4)で表される関係にあっても良い。
sinα=E/(Rv+Rr) 式(3)
ev=Rv・E/(Rv+Rr) 式(4)
また、請求項1記載の回転圧縮機において、高負荷運転時の弾性接触を考慮し、ベーンのローラとの摺接部における摺接面を確保するため、ベーンの高さをL(cm)とし、ベーンとローラの縦弾性係数をそれぞれE1、E2(kgf/cm2 )とし、ベーンとローラのポアソン比をそれぞれν1、ν2とし、設計圧力をΔP(kgf/cm2)とし、式(5)で計算される等価半径(cm)をρとし、式(6)で計算されるベーンの押付力をFv(kgf)とし、これらを用いて式(7)で計算される弾性接触面長さをd(cm)とした時、T、Rv、Rr、E、dが次式(8)で表される関係にあっても良い。
[但し、式(8)中、T、Rv、Rr、Eは式(1)、式(2)と同じものを表す。]
ρは前記式(5)で、ベーンの押付力Fvは前記式(6)で、弾性接触面長さdは前記式(7)で、ヘルツ応力Pmaxは前記式(9)で計算される。
b 凝縮器
c 膨張装置
d 蒸発器
1 回転圧縮機
31、32 シリンダ
23 吸入口
35 吐出口
26 クランク部
38 ローラ
40 ベーン
Claims (3)
- 分子中に塩素を含まない冷媒および潤滑油としてポリオールエステル、またはポリビニルエーテルを基油として用いた回転圧縮機において、吸入口と吐出口を有するシリンダと、シリンダの軸線上に配設されるクランク部を有する回転軸と、クランク部とシリンダの間に配設されて偏心回転するローラと、シリンダに設けられる溝内を往復動してローラの外周面に摺接するベーンを有し、ベーンのローラとの摺接部における曲率半径(Rv)(cm)が次式(1)で表されることを特徴とする回転圧縮機。
T<Rv<Rr 式(1)
[但し、式(1)中、Tはベーンの厚さ(cm)、Rrはベーンと摺接するローラの外周曲率半径(cm)を表す。] - ベーンが縦弾性係数1.96×105 〜2.45×105 N/mm2 の鉄系材料で形成されていることを特徴とする請求項1に記載の回転圧縮機。
- ベーンと摺接するローラの材質は、縦弾性係数9.81×104 〜1.47×105 N/mm2 の鉄系材料で形成されていることを特徴とする請求項1又は請求項2のいずれかに記載の回転圧縮機。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005045602A JP2005163800A (ja) | 2005-02-22 | 2005-02-22 | 回転圧縮機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005045602A JP2005163800A (ja) | 2005-02-22 | 2005-02-22 | 回転圧縮機 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000071619A Division JP2001263280A (ja) | 2000-03-15 | 2000-03-15 | 回転圧縮機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005163800A true JP2005163800A (ja) | 2005-06-23 |
JP2005163800A5 JP2005163800A5 (ja) | 2007-04-26 |
Family
ID=34737703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005045602A Pending JP2005163800A (ja) | 2005-02-22 | 2005-02-22 | 回転圧縮機 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2005163800A (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04321791A (ja) * | 1991-04-23 | 1992-11-11 | Matsushita Electric Ind Co Ltd | ロータリ圧縮機のベーン |
JPH07229488A (ja) * | 1994-02-18 | 1995-08-29 | Hitachi Ltd | ロータリ圧縮機 |
-
2005
- 2005-02-22 JP JP2005045602A patent/JP2005163800A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04321791A (ja) * | 1991-04-23 | 1992-11-11 | Matsushita Electric Ind Co Ltd | ロータリ圧縮機のベーン |
JPH07229488A (ja) * | 1994-02-18 | 1995-08-29 | Hitachi Ltd | ロータリ圧縮機 |
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