JP2009174455A5 - - Google Patents

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Publication number
JP2009174455A5
JP2009174455A5 JP2008015241A JP2008015241A JP2009174455A5 JP 2009174455 A5 JP2009174455 A5 JP 2009174455A5 JP 2008015241 A JP2008015241 A JP 2008015241A JP 2008015241 A JP2008015241 A JP 2008015241A JP 2009174455 A5 JP2009174455 A5 JP 2009174455A5
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JP
Japan
Prior art keywords
impeller
groove
blade tip
pump according
axial
Prior art date
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Granted
Application number
JP2008015241A
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Japanese (ja)
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JP2009174455A (en
JP5176565B2 (en
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Priority to JP2008015241A priority Critical patent/JP5176565B2/en
Priority claimed from JP2008015241A external-priority patent/JP5176565B2/en
Publication of JP2009174455A publication Critical patent/JP2009174455A/en
Publication of JP2009174455A5 publication Critical patent/JP2009174455A5/ja
Application granted granted Critical
Publication of JP5176565B2 publication Critical patent/JP5176565B2/en
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Claims (5)

オープン形の羽根車を有する斜流または軸流ポンプにおいて、前記羽根車を構成する羽根の前縁形状をハブ側では羽根車の回転方向に前進させ、羽根チップ側では後退させており、前記羽根車を収容するケーシングライナの内周面であって前記羽根のチップと対向する位置に軸方向に延びる溝と突起とを隣り合って形成し、この溝は突起よりも羽根車の回転方向の上流側に形成されており、さらに、前記溝および突起とが周方向に間隔をおいて複数個形成されていることを特徴とするポンプ。 In a mixed flow or axial flow pump having an open type impeller, the leading edge shape of the blades constituting the impeller is advanced in the rotation direction of the impeller on the hub side, and is retracted on the blade tip side. A groove extending in the axial direction and a protrusion are formed adjacent to each other on the inner peripheral surface of the casing liner that accommodates the car and facing the tip of the blade, and this groove is upstream of the protrusion in the rotational direction of the impeller. A pump characterized in that a plurality of the grooves and protrusions are formed at intervals in the circumferential direction . 前記溝または突起の個数は前記羽根車の羽根枚数よりも少なく、羽根枚数の約数とは異なる値であることを特徴とする請求項１に記載のポンプ。 The number of pre Kimizo or projections less than the number of blades of the impeller, pump according to claim 1, characterized in that the divisor of the number of blades are different values. 前記溝および突起の軸方向範囲は、前記羽根車の羽根チップを含む範囲であることを特徴とする請求項１に記載のポンプ。   2. The pump according to claim 1, wherein the axial range of the groove and the protrusion is a range including a blade tip of the impeller. 前記溝の周方向幅Ｗは、羽根チップの直径の０．０１〜０．０５倍であり、溝の深さＤは、羽根チップの直径の０．００６〜０．０１６倍であることを特徴とする請求項２または３に記載のポンプ。   The circumferential width W of the groove is 0.01 to 0.05 times the diameter of the blade tip, and the depth D of the groove is 0.006 to 0.016 times the diameter of the blade tip. The pump according to claim 2 or 3. 前記溝の軸方向長さは、羽根チップの軸方向長さの１〜７倍であることを特徴とする請求項２ないし４のいずれか１項に記載のポンプ。   The pump according to any one of claims 2 to 4, wherein an axial length of the groove is 1 to 7 times an axial length of the blade tip.
JP2008015241A 2008-01-25 2008-01-25 pump Active JP5176565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008015241A JP5176565B2 (en) 2008-01-25 2008-01-25 pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008015241A JP5176565B2 (en) 2008-01-25 2008-01-25 pump

Publications (3)

Publication Number Publication Date
JP2009174455A JP2009174455A (en) 2009-08-06
JP2009174455A5 true JP2009174455A5 (en) 2010-05-27
JP5176565B2 JP5176565B2 (en) 2013-04-03

Family

ID=41029794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008015241A Active JP5176565B2 (en) 2008-01-25 2008-01-25 pump

Country Status (1)

Country Link
JP (1) JP5176565B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2545412B (en) 2015-12-11 2018-06-06 Dyson Technology Ltd A hair care appliance comprising a motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5641488A (en) * 1979-09-11 1981-04-18 Sogo Pump Seisakusho:Kk Pump for impurities
JPH0710495U (en) * 1993-07-14 1995-02-14 株式会社クボタ Sewage pump
JP4868886B2 (en) * 2006-02-28 2012-02-01 株式会社クボタ Pump device and pump gate device

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