WO2008069124A1 - 遠心ポンプ - Google Patents
遠心ポンプ Download PDFInfo
- Publication number
- WO2008069124A1 WO2008069124A1 PCT/JP2007/073172 JP2007073172W WO2008069124A1 WO 2008069124 A1 WO2008069124 A1 WO 2008069124A1 JP 2007073172 W JP2007073172 W JP 2007073172W WO 2008069124 A1 WO2008069124 A1 WO 2008069124A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft support
- casing
- suction port
- impeller
- centrifugal pump
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/11—Kind or type liquid, i.e. incompressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
Definitions
- the present invention relates to a centrifugal pump.
- Japanese Patent Publication No. 2006-200427 discloses a centrifugal pump.
- the centrifugal pump includes a stator block 1, and the stator block 1 is made of a mold resin in which a stator 2 including a core and a coil, a control circuit 3, and a partition plate 4 are insert-molded.
- the partition plate 4 is located on the inner peripheral side of the stator 2 and has a recess 40 at the center thereof, and one end of the shaft 5 is supported by the recess 40.
- a rotor 6 is attached to the outer periphery of the shaft 5.
- the bearing 60 on the inner peripheral portion and the permanent magnet 61 on the outer peripheral side are integrally formed, and the impeller 7 is formed in a body on one end side in the axial direction.
- This centrifugal pump further includes a casing 8.
- the casing 8 is fixed to the stator block 1 with screws, and a pump chamber for accommodating the impeller 7 is formed between the casing 8 and the partition plate 4.
- the casing 8 includes a discharge port 81 on the outer peripheral side and a suction port 80 in the center.
- the casing 8 includes a shaft support portion 100 that supports the other end of the shaft 5, and the shaft support portion 100 is supported by a support rib 101 extending from the casing 8 around the suction port 80 toward the inside of the casing 8. Supported.
- a conical protrusion 100a that guides the water flow to the impeller 7 side is formed on the surface of the shaft support 100 on the suction port 80 side.
- This centrifugal pump has an advantage that the number of parts can be reduced because the shaft support portion 100 that supports the other end of the shaft 5 is formed integrally with the casing 8. However, there is a large gap between the outer peripheral surface of the shaft support portion 100 and the inner peripheral surface of the impeller 7, and there is a problem that air accumulates in this portion and it is difficult to discharge the air.
- the present invention has been invented in view of the above-mentioned problems, and an object of the present invention is to provide a centrifugal pump that allows air to accumulate in the casing and efficiently discharge liquid containing bubbles. It is to provide.
- the centrifugal pump of the present invention includes a casing having a suction port and a suction port, a shaft support portion fixed to the inside of the casing, a shaft supported by the shaft support portion, and a self-rotating shaft.
- An impeller that includes a flow path that is supported by the inner surface and penetrates from the inner peripheral surface to the outer peripheral surface, and that discharges the liquid flowing into the casing from the suction port to the outside through the flow path; And a driving unit for rotating the motor.
- a feature of the present invention is that the shaft support portion is provided around a cone-shaped projecting portion formed on a surface on the suction port side and projecting toward the suction port, and a bottom portion of the projecting portion.
- the suction port side surface of the peripheral edge extends from the bottom of the protrusion toward the opening on the inner peripheral surface side of the flow path, and the outer diameter is larger than the inner diameter of the suction port.
- the gap between the outer surface of the shaft support portion and the inner peripheral surface of the impeller can be filled with the peripheral edge portion, and air accumulates in the casing.
- the liquid flowing from the suction inlet to the impeller flow path is formed by the cone-shaped protrusion and the peripheral suction part, the inlet side surface, and the inlet of the impeller flow path (the inner circumference of the flow path). It is guided to the vicinity of the opening on the surface side, and as a result, the liquid mixed with bubbles can be discharged efficiently.
- the shaft support portion is formed integrally with the casing and includes a shaft support portion main body provided with the cone-shaped protruding portion, and an outer periphery of the shaft support portion main body. It consists of a ring.
- the peripheral edge can be easily formed by attaching a ring to the outer periphery of the shaft support body.
- the shaft support portion may be formed separately from the casing, and may be fixed to the peripheral edge of the suction port on the inner surface of the casing. As described above, when the casing and the shaft support main body are integrally formed, for the sake of die-cutting at the time of molding of the casing, suction is performed.
- the shaft support portion and the casing separately, it is possible to freely reduce the diameter of the suction port regardless of the size of the shaft support portion.
- the force S can be reduced by reducing the diameter of the suction port while maintaining the strength of the shaft support portion and providing a centrifugal pump corresponding to a low flow rate.
- a surface on the suction port side of the peripheral edge portion impellers a flow path of the impeller. It is located in the area extended to the center side of the.
- the water flow from the inlet can be smoothly guided to the inlet of the impeller.
- a spiral step portion is formed on the outer surface of the cone-shaped protrusion.
- the suction loca can also rotate the inflowing water, and it can be controlled by the ability to draw out the liquid more efficiently.
- FIG. 1 is a cross-sectional view of a centrifugal pump that exerts a force on a first embodiment of the present invention.
- FIG. 2A is a partially cutaway front view of the casing and ring of the centrifugal pump of FIG.
- FIG. 2B is a partially cutaway front view showing a state where a ring is attached to the casing of FIG. 2A.
- FIG. 3 is an enlarged view of the main part of FIG.
- FIG. 4 is a partial front view showing an example in which a spiral stepped portion is formed on the protruding portion of FIG.
- FIG. 5 is a cross-sectional view of a centrifugal pump that applies force to a second embodiment of the present invention.
- FIG. 6 is a step view of the casing and shaft support of the centrifugal pump of FIG.
- FIG. 7 is a cross-sectional view showing a modified example in which the diameter of the suction port is reduced in the centrifugal pump of FIG.
- FIG. 8 is a cross-sectional view of a conventional centrifugal pump.
- the basic structure of the centrifugal pump of the present embodiment is the same as that of the conventional example shown in FIG. 8.
- the stator block 1, the casing 8 having the suction port 80, and the inside of the casing 8 are fixed.
- the shaft support 84 is supported by the shaft support 84, the shaft 5 supported at one end by the shaft support 84 and supported by the recess 40 of the stator block 1, and the shaft 5 via the rotor 6.
- the stator block 1 is made of a mold resin in which a stator 2 including a core and a coil, a control circuit 3, and a partition plate 4 are insert-molded.
- the stator 2 and the control circuit 3 constitute a drive unit for rotating the impeller 7.
- the partition plate 4 is located on the inner peripheral side of the stator 2 and In the central portion, the above-described recess 40 for supporting the other end of the shaft 5 is formed.
- a rotor 6 is attached to the outer periphery of the shaft 5.
- an inner peripheral bearing 60 and an outer peripheral permanent magnet 61 are integrally formed, and an impeller 7 is formed in a body on the casing 8 side in the axial direction.
- the casing 8 is fixed to the stator block 1 with screws, and a pump chamber for accommodating the impeller 7 is formed between the casing 8 and the partition plate 4.
- the casing 8 is provided with a discharge port 8 1 (see FIG. 2A) on the outer peripheral side and a suction port / inlet 80 at the center.
- the shaft support portion 84 is arranged at a position facing the suction port 80 inside the pump chamber.
- the configuration of the shaft support portion 84 will be described later in detail.
- the impeller 7 is driven by a drive unit and rotates around the shaft 5 together with the rotor 6.
- the impeller 7 includes a flow path 70 penetrating from the inner peripheral surface to the outer peripheral surface, and discharges water flowing into the casing from the suction port 80 to the outside through the flow channel 70 from the discharge port 81.
- the shaft support portion 84 of this embodiment includes a shaft support portion main body 840 and a ring 841 attached to the outer periphery of the shaft support portion 840.
- the shaft support body 840 is composed of a plurality of (three in the illustrated example) support ribs 83 extending toward the inside of the casing 8 from the suction of the casing 8 at the periphery of the end of the inlet 80. It is formed in one piece with the casing 8.
- the shaft support body 840 has a cone-shaped protrusion 840a protruding toward the suction port 80 on the surface on the suction port 80 side, and a shaft 5 on the surface opposite to the suction port 80.
- a bearing portion 850 that supports one end of the bearing.
- the ring 841 is for expanding the outer diameter of the shaft support portion main body 840 and forming a wide peripheral edge portion around the bottom of the protruding portion 840a.
- the ring 841 has a plurality of grooves 842 corresponding to the support ribs 83 and is mounted around the shaft support body 840 so that the support ribs 83 are fitted in the grooves 842.
- the ring 841 is prevented from rotating by the engagement of the support rib 83 and the groove 842, and the step 85 provided at the end of the shaft support body 840 and the step provided at the bottom of the ring 841 (see FIG. (Not shown) is engaged with each other, thereby positioning in the axial direction.
- the ring 841 is fixed around the shaft support body 840 by, for example, ultrasonic welding.
- the suction port side of the ring 841 When the ring 841 is mounted around the shaft support body 840, the suction port side of the ring 841 One surface 841a gently extends from the bottom of the protrusion 840a toward the opening 71 on the inner peripheral surface side of the flow path 70 of the impeller 7, and the outer diameter of the surface 841a (that is, the outer diameter of the ring 841) is It is larger than the inner diameter of the suction port 80.
- the outer peripheral surface of the ring 841 faces the inner peripheral surface of the impeller 7 through a minute gap.
- the centrifugal pump of this embodiment has the ring 841 mounted around the shaft support body 840, a ring is formed between the outer surface of the shaft support body 840 and the inner peripheral surface of the impeller 7. It is possible to fill with 841 S, and air accumulates in the casing. Then, the directional force and water from the suction port 80 to the impeller channel 70 are smoothly guided to the vicinity of the opening 71 of the channel 70 by the cone-shaped protrusion 840a and the surface 841a of the ring 841 on the suction port side. As a result, the liquid mixed with bubbles can be discharged efficiently.
- the shaft support portion 84 is composed of the shaft support portion main body 840 and the ring 841 attached around the shaft support portion main body 840, so that the suction port 80 has a small inner diameter.
- the outer diameter of the shaft support portion 84 can be easily expanded.
- the surface 841a of the ring (that is, the peripheral edge) 841 on the suction port side is located in a region S in which the flow path 70 of the impeller extends to the center side of the impeller.
- the surface 841a on the suction port side of the ring is preferably located closer to the casing 8 side than the bottom surface 70a of the flow path 70. In this case, even if the position of the impeller is shifted toward the casing due to wear of the bearing 60 or the like, the water flowing from the suction port 80 can be smoothly guided to the flow path 70 of the impeller.
- a spiral stepped portion 88 is formed on the outer surface of the cone-shaped protruding portion 840a.
- the stepped portion 88 is formed so as to draw a spiral in accordance with the rotation direction X of the impeller 7.
- the water flowing from the suction port 80 can be rotated by the cone-shaped protrusion 840a to be sent to the impeller 7 side, and the force that guides the water mixed with bubbles to the impeller 7 more efficiently S I'll do it.
- the shaft support portion 84 ′ of the present embodiment is formed separately from the casing 8, and is sucked by the inner surface of the casing 8. Fixed.
- the shaft support portion 84 ′ is formed in one block shape, and includes a cone-shaped protrusion 84 Oa ′ and a peripheral edge portion 841 ′ provided around the bottom of the protrusion 840 a ′. And a bearing portion 850 ′ for supporting one end of the shaft 5.
- the shaft support portion 84 ′ is formed such that the outer diameter D 1 of the peripheral edge portion 841 ′ is larger than the inner diameter D 2 of the suction port 80.
- the shaft support 84 ′ is attached along the axial direction to the periphery of the end of the suction port 80 on the inner surface of the casing 8, and is fixed by ultrasonic welding or the like.
- the surface 84 la ′ on the suction port side of the peripheral portion 841 ′ opens from the bottom portion of the protrusion 840 a ′ to the opening 71 on the inner peripheral surface side of the flow path 70.
- the outer peripheral surface of the peripheral edge portion 841 ′ faces the inner peripheral surface of the impeller 7 through a minute gap.
- the gap between the outer surface of the shaft support portion 84 'and the inner peripheral surface of the impeller 7 can be filled with the peripheral edge portion 841', and air does not easily accumulate in the casing.
- the suction force from the suction port 80 to the flow path 70 of the impeller is filled with condensate by the cone-shaped protrusion 840a 'and the surface 841a' on the suction port side of the peripheral portion 841 'near the opening 71 of the flow path 70.
- the liquid containing bubbles can be efficiently discharged.
- the inner diameter of the suction port 80 may be made smaller than the outer diameter of the shaft support portion for convenience of die cutting. Difficult.
- the diameter D2 of the suction port 80 is freely reduced regardless of the size of the shaft support portion 84. That power S.
- the shaft strength is maintained by reducing the inner diameter D2 of the suction port 80 while keeping the inner diameter D3 of the bearing portion 850 ′ of the shaft support portion 84 at the same size as FIG.
- the pump corresponding to the lower flow rate can be provided.
- the suction port side surface 841a ′ of the peripheral edge portion 841 ′ is within the region where the impeller channel 70 is extended to the center side of the impeller. It is preferable to be located. [0037] It is also preferable to form a spiral step on the outer surface of the cone-shaped protrusion 840a '.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097011776A KR101115362B1 (ko) | 2006-12-07 | 2007-11-30 | 원심 펌프 |
JP2008548258A JP4883093B2 (ja) | 2006-12-07 | 2007-11-30 | 遠心ポンプ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006331035 | 2006-12-07 | ||
JP2006-331035 | 2006-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008069124A1 true WO2008069124A1 (ja) | 2008-06-12 |
Family
ID=39492020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/073172 WO2008069124A1 (ja) | 2006-12-07 | 2007-11-30 | 遠心ポンプ |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4883093B2 (ja) |
KR (1) | KR101115362B1 (ja) |
TW (1) | TWI329709B (ja) |
WO (1) | WO2008069124A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013047500A (ja) * | 2011-08-29 | 2013-03-07 | Panasonic Corp | ポンプ |
EP2397697A3 (en) * | 2010-06-14 | 2013-05-29 | Mitsubishi Electric Corporation | Pump and heat pump apparatus |
JP2013148069A (ja) * | 2012-01-23 | 2013-08-01 | Denso Corp | 遠心型ポンプ |
WO2014155925A1 (ja) | 2013-03-29 | 2014-10-02 | パナソニック株式会社 | ポンプ |
CN105275888A (zh) * | 2014-07-24 | 2016-01-27 | 爱信精机株式会社 | 电动泵 |
JP2017089530A (ja) * | 2015-11-12 | 2017-05-25 | パナソニックIpマネジメント株式会社 | ポンプ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1137081A (ja) * | 1997-07-17 | 1999-02-09 | Shibaura Eng Works Co Ltd | ヒューガルポンプ |
JP2005163678A (ja) * | 2003-12-03 | 2005-06-23 | Asmo Co Ltd | 羽根車回転体、流体ポンプ装置、及び羽根車回転体の製造方法 |
JP2006200427A (ja) * | 2005-01-20 | 2006-08-03 | Matsushita Electric Ind Co Ltd | ポンプ |
JP2006283682A (ja) * | 2005-04-01 | 2006-10-19 | Kps Kogyo Kk | Dcモータポンプ、およびこれを用いたジェットバス |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720242A (en) * | 1987-03-23 | 1988-01-19 | Lowara, S.P.A. | Centrifugal pump impeller |
US7121794B2 (en) | 2003-06-02 | 2006-10-17 | Envirotech Pumpsystems, Inc. | Component assembly for reconfiguring a centrifugal pump |
-
2007
- 2007-11-30 KR KR1020097011776A patent/KR101115362B1/ko active IP Right Grant
- 2007-11-30 JP JP2008548258A patent/JP4883093B2/ja active Active
- 2007-11-30 WO PCT/JP2007/073172 patent/WO2008069124A1/ja active Application Filing
- 2007-12-07 TW TW096146728A patent/TWI329709B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1137081A (ja) * | 1997-07-17 | 1999-02-09 | Shibaura Eng Works Co Ltd | ヒューガルポンプ |
JP2005163678A (ja) * | 2003-12-03 | 2005-06-23 | Asmo Co Ltd | 羽根車回転体、流体ポンプ装置、及び羽根車回転体の製造方法 |
JP2006200427A (ja) * | 2005-01-20 | 2006-08-03 | Matsushita Electric Ind Co Ltd | ポンプ |
JP2006283682A (ja) * | 2005-04-01 | 2006-10-19 | Kps Kogyo Kk | Dcモータポンプ、およびこれを用いたジェットバス |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2397697A3 (en) * | 2010-06-14 | 2013-05-29 | Mitsubishi Electric Corporation | Pump and heat pump apparatus |
US8753068B2 (en) | 2010-06-14 | 2014-06-17 | Mitsubishi Electric Corporation | Pump and heat pump apparatus |
JP2013047500A (ja) * | 2011-08-29 | 2013-03-07 | Panasonic Corp | ポンプ |
JP2013148069A (ja) * | 2012-01-23 | 2013-08-01 | Denso Corp | 遠心型ポンプ |
WO2014155925A1 (ja) | 2013-03-29 | 2014-10-02 | パナソニック株式会社 | ポンプ |
CN105275888A (zh) * | 2014-07-24 | 2016-01-27 | 爱信精机株式会社 | 电动泵 |
EP2977615A1 (en) * | 2014-07-24 | 2016-01-27 | Aisin Seiki Kabushiki Kaisha | Electric pump |
JP2017089530A (ja) * | 2015-11-12 | 2017-05-25 | パナソニックIpマネジメント株式会社 | ポンプ |
Also Published As
Publication number | Publication date |
---|---|
TW200839104A (en) | 2008-10-01 |
KR101115362B1 (ko) | 2012-02-15 |
KR20090078843A (ko) | 2009-07-20 |
JP4883093B2 (ja) | 2012-02-22 |
TWI329709B (en) | 2010-09-01 |
JPWO2008069124A1 (ja) | 2010-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2008069124A1 (ja) | 遠心ポンプ | |
US20130323096A1 (en) | Diagonal fan | |
JP2007247489A (ja) | 電動ポンプ | |
JP2000230492A (ja) | 流体ポンプ | |
JP2002138990A (ja) | モータポンプ | |
JP2003184778A (ja) | 縦型多段遠心ポンプ | |
WO2008032514A1 (en) | Compressor | |
JP2005127311A (ja) | 遠心送風機及びこれを用いた空気調和機 | |
JP2001304190A (ja) | 高速ゲートポンプ | |
JP2006316652A (ja) | 流体ポンプ | |
JP2002138986A (ja) | モータポンプ | |
JP2004190562A (ja) | 小型渦流ポンプ | |
JP5481346B2 (ja) | 遠心ポンプ | |
JP5268700B2 (ja) | ポンプ及びこれを用いた洋風大便器 | |
JP5706792B2 (ja) | 遠心ポンプ | |
JP4158269B2 (ja) | 外部駆動形ラインポンプ | |
JP2003120577A (ja) | リバーシブルポンプ | |
JP2001153083A (ja) | ポンプ | |
JP2008128199A (ja) | ベーンポンプ | |
JP2007198350A (ja) | 遠心式ポンプ及びロータ | |
JP4168519B2 (ja) | 外部駆動形ラインポンプ | |
JP2000297775A (ja) | 自吸式ポンプ | |
JP2003083297A (ja) | ポンプ | |
JPH1137081A (ja) | ヒューガルポンプ | |
JP5723608B2 (ja) | ポンプ装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07832854 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008548258 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020097011776 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07832854 Country of ref document: EP Kind code of ref document: A1 |