JPH0239587U - - Google Patents
Info
- Publication number
- JPH0239587U JPH0239587U JP18578987U JP18578987U JPH0239587U JP H0239587 U JPH0239587 U JP H0239587U JP 18578987 U JP18578987 U JP 18578987U JP 18578987 U JP18578987 U JP 18578987U JP H0239587 U JPH0239587 U JP H0239587U
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- fluid
- scroll
- bypass
- utility
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
第１図はこの考案の一実施例によるスクロール
圧縮機の断面図、第２図は流体バイパス孔付近の
拡大断面図、第３図ａ，ｂは弁座の平面図と断面
図、第４図ａ，ｂは弁座の切欠き開口面積および
面粗度と流体漏れ量の関係を示すそれぞれのグラ
フ、第５図は従来のスクロール圧縮機の断面図で
ある。
１……固定スクロール、１ａ……台板部、１ｂ
……渦巻突起、２……揺動スクロール、２ａ……
台板部、２ｂ……渦巻突起、４……吐出口、５…
…圧縮室、６……主軸、１１……密閉容器、１９
……流体バイパス孔、２０……弁座、２１……排
出孔、２２……バイパス弁、２３……カバー、２
４……ばね、２７……配管、３１……切欠き。な
お、図中同一符号は同一又は相当部分を示す。
Figure 1 is a sectional view of a scroll compressor according to an embodiment of this invention, Figure 2 is an enlarged sectional view of the vicinity of the fluid bypass hole, Figures 3a and b are a plan view and sectional view of the valve seat, and Figure 4. Graphs a and b are graphs showing the relationship between the notch opening area and surface roughness of the valve seat and the amount of fluid leakage, and FIG. 5 is a sectional view of a conventional scroll compressor. 1... Fixed scroll, 1a... Base plate part, 1b
...Spiral protrusion, 2...Obcillating scroll, 2a...
Base plate portion, 2b... spiral protrusion, 4... discharge port, 5...
...Compression chamber, 6...Main shaft, 11...Airtight container, 19
... Fluid bypass hole, 20 ... Valve seat, 21 ... Discharge hole, 22 ... Bypass valve, 23 ... Cover, 2
4...Spring, 27...Piping, 31...Notch. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
部に吐出口が設けられた固定スクロールと、台板
部の上面に渦巻突起が設けられ、上記固定スクロ
ールと組合わされて圧縮室を形成する揺動スクロ
ールと、固定スクロールの台板部に設けられ、圧
縮室が吐出口と連通する以前に通じる１対の流体
バイパス孔と、このバイパス孔を開閉するバイパ
ス弁と、このバイパス弁の弁座と、流体バイパス
孔からバイパス弁を開放する方向に付勢するばね
と、流体バイパス孔からバイパスされた流体を吸
入圧力空間に通じる固定スクロール外へ排出する
排出孔とを備えたスクロール圧縮機において、上
記弁座に微小量の流体が漏れ出る漏れ手段を設け
たことを特徴とするスクロール圧縮機。 (2) 弁座の漏れ手段が所定の開口面積を有する
切欠きであることを特徴とする実用新案登録請求
の範囲第(1)項記載のスクロール圧縮機。 (3) 弁座の漏れ手段が、弁座面を所定の粗さに
したことを特徴とする実用新案登録請求の範囲第
(1)項記載のスクロール圧縮機。 (4) 弁座からの漏れ量が圧縮機の１時間当りの
流体循環量の０．１％程度以下であることを特徴
とする実用新案登録請求の範囲第(1)項記載のス
クロール圧縮機。[Claims for Utility Model Registration] (1) A fixed scroll having a spiral protrusion on the lower surface of the base plate and a discharge port in the center; An oscillating scroll that is combined with the scroll to form a compression chamber; a pair of fluid bypass holes that are provided in the base plate of the fixed scroll and that communicate with the compression chamber before communicating with the discharge port; and a pair of fluid bypass holes that open and close the bypass holes. a bypass valve, a valve seat of the bypass valve, a spring that biases the bypass valve in the direction of opening from the fluid bypass hole, and a discharge that discharges the bypassed fluid from the fluid bypass hole to the outside of the fixed scroll communicating with the suction pressure space. 1. A scroll compressor having a hole, characterized in that the valve seat is provided with a leak means through which a minute amount of fluid leaks. (2) The scroll compressor according to claim (1) of the utility model registration, wherein the leakage means of the valve seat is a notch having a predetermined opening area. (3) Utility model registration claim No. 1 characterized in that the leakage means of the valve seat is that the valve seat surface is made to have a predetermined roughness.
Scroll compressor described in paragraph (1). (4) The scroll compressor according to claim (1) of the utility model registration claim, characterized in that the amount of leakage from the valve seat is approximately 0.1% or less of the fluid circulation amount per hour of the compressor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185789U JPH0617025Y2 (en) | 1987-12-04 | 1987-12-04 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185789U JPH0617025Y2 (en) | 1987-12-04 | 1987-12-04 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0239587U true JPH0239587U (en) | 1990-03-16 |
| JPH0617025Y2 JPH0617025Y2 (en) | 1994-05-02 |
Family
ID=31477054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987185789U Expired - Lifetime JPH0617025Y2 (en) | 1987-12-04 | 1987-12-04 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617025Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59192880A (en) * | 1983-04-15 | 1984-11-01 | Hitachi Ltd | Scroll compressor |
| JPS6248979A (en) * | 1985-08-27 | 1987-03-03 | Hitachi Ltd | Scroll compressor |
-
1987
- 1987-12-04 JP JP1987185789U patent/JPH0617025Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59192880A (en) * | 1983-04-15 | 1984-11-01 | Hitachi Ltd | Scroll compressor |
| JPS6248979A (en) * | 1985-08-27 | 1987-03-03 | Hitachi Ltd | Scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617025Y2 (en) | 1994-05-02 |
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