JPWO2014049853A1 - ベーンポンプ - Google Patents
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- JPWO2014049853A1 JPWO2014049853A1 JP2014538049A JP2014538049A JPWO2014049853A1 JP WO2014049853 A1 JPWO2014049853 A1 JP WO2014049853A1 JP 2014538049 A JP2014538049 A JP 2014538049A JP 2014538049 A JP2014538049 A JP 2014538049A JP WO2014049853 A1 JPWO2014049853 A1 JP WO2014049853A1
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- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 238000003745 diagnosis Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000035515 penetration Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- 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
- F04C18/344—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 inner member
- F04C18/3441—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 inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
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- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
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- 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
- F04C18/344—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 inner member
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
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- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0078—Fixing rotors on shafts, e.g. by clamping together hub and shaft
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- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
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- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
実施の形態1.
図1に示す蒸発燃料処理システムは、燃料タンク1と、燃料タンク1で蒸発した燃料を吸着し一時的に溜めるキャニスタ2と、キャニスタ2に回収した蒸発燃料をエンジンへ導入するインレットマニホールド3と、蒸発燃料の流量を制御するNC(Normally Close)型のパージソレノイドバルブ4とから構成される。本実施の形態1に係る気密性診断装置10は、図1に太線で示す配管系統5の漏れを検出するために使用される製品であり、キャニスタ2と大気側とを連通する配管を閉じるNO(Normally Open)型のキャニスタベントソレノイドバルブ11と、大気側からキャニスタ2へ圧縮空気を吐出して配管系統5を加圧するベーンポンプ12と、ベーンポンプ12の吐出側に設けられ、配管系統5とベーンポンプ12との間の配管14を閉じる逆止弁13とを備える。
ベーンポンプ12は、円柱形状のロータ21と、複数の薄板状のベーン22と、ロータ21および複数のベーン22とを収容する樹脂製の第1ハウジング23と、第1ハウジング23の底面側を塞ぐ樹脂製の第2ハウジング30と、金属板24を間に挟んで第1ハウジング23に固定されロータ21を回転駆動するモータ25とから構成されている。モータ25を取り付けた金属板24と、第1ハウジング23と、第2ハウジング30とは、不図示のネジにより締結され一体化される。
ロータ21は、ロータ収容部28に対し偏心した状態で収容されており、ロータ21の軸中心O1とロータ収容部28の軸中心O2とは一致せず、互いにずれた位置関係にある。モータ25を動作させロータ21を回転駆動させた際には、ロータ21が回転することによる遠心力を受けて、各ベーン22がロータ21の径方向外側へ摺動し、各ベーン22の先端部がロータ収容部28の内壁面に摺接しながら回転する。ロータ21とロータ収容部28とが偏心位置にあるため、ロータ収容部28の内壁面と、ロータ21の外周面と、ベーン22とで囲まれたポンプ室34の容積は、ロータ21の回転に伴って大小に変化する。即ち、ポンプ室34が吸気溝31に接続する位置にあるときには、ロータ21の回転に伴い容積が増大していき、吐出口32に接続する位置に近づくにつれ容積が減少していく。従って、吸気口29から吸気溝31を通りポンプ室34に流入した気体は、ロータ21の回転に伴って圧縮された後に、吐出口32から吐出される。
分離させる方法として、(1)ロータ21のシャフト嵌合凹部21aを貫通させないようにする。シャフト嵌合凹部21aをロータ21の上面21dから下面21eに貫通させた場合、ベーンポンプ12の周囲の大気がシャフト貫通穴27を介してシャフト嵌合凹部21aから下面21e側の空間へ流入する。これに対して、図2および図5のように、シャフト嵌合凹部21aを貫通させないことにより、ベーンポンプ12の周囲の大気はシャフト嵌合凹部21aと窪み部21c、即ちロータ21の内側空間だけに流入し、ロータ21の外側空間はポンプ室34と同じ高圧が維持される。これにより、ロータ21の下面21e側から上面21d側へ、押し付け荷重が発生する。
なお、図示例の圧力導入溝33は深さを誇張拡大して示しており、実際の縮尺とは異なる。
なお、図5ではロータ21の上面21dを平滑面にしたが、反対にロータ収容部28の内壁面を平滑面にしてもよいし、上面21dとロータ収容部28の内壁面それぞれを平滑面にしてもよい。
なお、図6ではロータ21の下面21eを凹凸または粗面にしたが、反対に第2ハウジング30の内壁面を凹凸または粗面にしてもよいし、下面21eと第2ハウジング30の内壁面それぞれを凹凸または粗面にしてもよい。
また、ロータ21の振動の要因の一つに、ロータ収容部28の圧力状態の変動(大気圧から配管漏れ診断を行う目標圧力まで加圧または減圧するときの変動)の影響が考えられるが、吸気側より吐出側を絞ることにより、ロータ収容部28の内部圧力が安定し、振動防止が可能になる。
Claims (7)
- 円筒状のロータ収容部、当該ロータ収容部と外部とを連通する吸気口および吐出口、ならびに当該ロータ収容部へモータシャフトを貫通させるシャフト貫通穴が形成されたハウジングと、
前記ロータ収容部の中心に対して偏心して収容され、前記モータシャフトと一体に回転する円柱形状のロータと、
前記ロータに装着され、前記ロータの回転力を受けて径方向外側へ可動し、前記ロータ収容部の内周面に摺接して回転するベーンとを備えるベーンポンプにおいて、
前記ロータは、前記シャフト貫通穴を貫通した前記モータシャフトの先端部を嵌合するシャフト嵌合凹部を有することを特徴とするベーンポンプ。 - 前記吐出口の開口面積は、前記吸気口の開口面積より小さいことを特徴とする請求項1記載のベーンポンプ。
- 前記ロータの前記シャフト嵌合凹部を形成した面、および前記シャフト嵌合凹部を形成した面に対向する前記ハウジングの面のいずれか一方、または両方が、平滑面であることを特徴とする請求項1記載のベーンポンプ。
- 前記ハウジングは、前記吐出口に連通し、かつ、前記ロータに対向する位置に溝を有することを特徴とする請求項1記載のベーンポンプ。
- 前記ロータの前記シャフト嵌合凹部を形成した面とは反対の面、および当該反対の面に対向する前記ハウジングの面のいずれか一方、または両方に、凹凸が形成されていることを特徴とする請求項1記載のベーンポンプ。
- 前記ロータの前記シャフト嵌合凹部を形成した面とは反対の面、および当該反対の面に対向する前記ハウジングの面のいずれか一方、または両方に、鋸歯状の凹凸が形成されていることを特徴とする請求項1記載のベーンポンプ。
- 前記ロータの前記シャフト嵌合凹部を形成した面とは反対の面、および当該反対の面に対向する前記ハウジングの面のいずれか一方、または両方が、粗面であることを特徴とする請求項1記載のベーンポンプ。
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PCT/JP2012/075169 WO2014049853A1 (ja) | 2012-09-28 | 2012-09-28 | ベーンポンプ |
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JPWO2014049853A1 true JPWO2014049853A1 (ja) | 2016-08-22 |
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JP6534647B2 (ja) * | 2016-11-03 | 2019-06-26 | 大豊工業株式会社 | ベーンポンプ |
JP6613222B2 (ja) * | 2016-11-03 | 2019-11-27 | 大豊工業株式会社 | ベーンポンプ |
WO2019229901A1 (ja) * | 2018-05-30 | 2019-12-05 | 三菱電機株式会社 | ベーンポンプ及びその製造方法 |
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JPS5339802U (ja) * | 1976-08-24 | 1978-04-06 | ||
JPS58183990U (ja) * | 1982-06-01 | 1983-12-07 | 坂東 治夫 | 小形ベ−ンポンプ |
JP4193767B2 (ja) * | 2004-07-14 | 2008-12-10 | トヨタ自動車株式会社 | ベーンポンプ |
JP4203661B2 (ja) | 2004-08-02 | 2009-01-07 | パナソニック株式会社 | サーボ制御装置 |
JP2006046203A (ja) * | 2004-08-05 | 2006-02-16 | Matsushita Electric Ind Co Ltd | ベーンロータリ型空気ポンプ |
JP4300529B2 (ja) * | 2004-11-05 | 2009-07-22 | 株式会社デンソー | ベーン式ポンプ |
JP2006132430A (ja) | 2004-11-05 | 2006-05-25 | Denso Corp | ベーン式ポンプ |
JP2008231955A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | ベーンポンプ |
JP4821673B2 (ja) * | 2007-03-27 | 2011-11-24 | パナソニック電工株式会社 | ベーンポンプ |
JP2011111912A (ja) * | 2009-11-24 | 2011-06-09 | Denso Corp | ベーン式ポンプおよびそれを用いたエバポリークチェックシステム |
JP5229634B2 (ja) * | 2009-12-04 | 2013-07-03 | 株式会社デンソー | ベーン式ポンプおよびそれを用いたエバポリークチェックシステム |
JP4935887B2 (ja) | 2009-12-11 | 2012-05-23 | 株式会社デンソー | ベーン式ポンプおよびそれを用いたエバポリークチェックシステム |
JP5252318B2 (ja) * | 2010-08-27 | 2013-07-31 | 株式会社デンソー | ベーン式ポンプ装置およびそれを用いたリークチェックシステム |
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JP5933732B2 (ja) | 2016-06-15 |
WO2014049853A1 (ja) | 2014-04-03 |
US20150330389A1 (en) | 2015-11-19 |
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