JP2019127892A - 減音部材 - Google Patents
減音部材 Download PDFInfo
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- JP2019127892A JP2019127892A JP2018010170A JP2018010170A JP2019127892A JP 2019127892 A JP2019127892 A JP 2019127892A JP 2018010170 A JP2018010170 A JP 2018010170A JP 2018010170 A JP2018010170 A JP 2018010170A JP 2019127892 A JP2019127892 A JP 2019127892A
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- Prior art keywords
- reduction member
- sound
- discharge port
- flow path
- sound reduction
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- Compressor (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
真空ポンプの吐出口の流路に挿入する減音部材であって、
該流路に沿って延びる本体と、
該本体の外周面から径方向外側に延び、該流路に沿った螺旋形状を有する羽根部と、を備え、
該流路に挿入した際に、該羽根部が該流路の内周面と係合し、螺旋流路を形成する減音部材を提供する。
Claims (5)
- 真空ポンプの吐出口の流路に挿入する減音部材であって、
該流路に沿って延びる本体と、
該本体の外周面から径方向外側に延び、該流路に沿った螺旋形状を有する羽根部と、を備え、
該流路に挿入した際に、該羽根部が該流路の内周面と係合し、螺旋流路を形成する減音部材。 - 該減音部材の外径は、該吐出口の内径よりも大きくなっており、該減音部材を該流路内に圧入することにより、吐出口に固定できるようになっている、請求項1に記載の減音部材。
- 該減音部材の外径は、該吐出口の内径よりも大きく、該羽根部にスクリュー形状のねじ込み部が設けてあり、該減音部材を回転させながら該吐出口内に押し込むことにより、該ねじ込み部が該吐出口の内周面に食い込んで該減音部材が該吐出口にねじ込まれて該吐出口に固定されるようにされた、請求項1に記載の減音部材。
- 該羽根部は等間隔で配置されている、請求項1乃至3の何れか一項に記載の該減音部材。
- 請求項1乃至4の何れか一項に記載の減音部材を備える真空ポンプ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2018010170A JP6467534B1 (ja) | 2018-01-25 | 2018-01-25 | 減音部材 |
Applications Claiming Priority (1)
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JP2018010170A JP6467534B1 (ja) | 2018-01-25 | 2018-01-25 | 減音部材 |
Publications (2)
Publication Number | Publication Date |
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JP6467534B1 JP6467534B1 (ja) | 2019-02-13 |
JP2019127892A true JP2019127892A (ja) | 2019-08-01 |
Family
ID=65355992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018010170A Expired - Fee Related JP6467534B1 (ja) | 2018-01-25 | 2018-01-25 | 減音部材 |
Country Status (1)
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JP (1) | JP6467534B1 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744785A (en) * | 1980-09-01 | 1982-03-13 | Hitachi Ltd | Motor driven vacuum pump |
JPS599115Y2 (ja) * | 1980-09-29 | 1984-03-22 | 株式会社日立製作所 | ダイヤフラムポンプ |
JP2005006732A (ja) * | 2003-06-17 | 2005-01-13 | Teijin Ltd | 酸素濃縮装置 |
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2018
- 2018-01-25 JP JP2018010170A patent/JP6467534B1/ja not_active Expired - Fee Related
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