JP2008297997A - ポンプ装置 - Google Patents
ポンプ装置 Download PDFInfo
- Publication number
- JP2008297997A JP2008297997A JP2007146057A JP2007146057A JP2008297997A JP 2008297997 A JP2008297997 A JP 2008297997A JP 2007146057 A JP2007146057 A JP 2007146057A JP 2007146057 A JP2007146057 A JP 2007146057A JP 2008297997 A JP2008297997 A JP 2008297997A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- casing
- rotor
- pump device
- annular wall
- 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
- 238000013459 approach Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 51
- 230000000694 effects Effects 0.000 description 13
- 230000007423 decrease Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 101000802895 Dendroaspis angusticeps Fasciculin-1 Proteins 0.000 description 1
- 101000611023 Homo sapiens Tumor necrosis factor receptor superfamily member 6 Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 102100040403 Tumor necrosis factor receptor superfamily member 6 Human genes 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
- F04D29/0473—Bearings hydrostatic; hydrodynamic for radial 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
- F04D13/026—Details of the bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
【解決手段】ポンプ装置のインペラ20の側面20x,20yのそれぞれの外周に沿って突条部20px,20pyを設け、側面20x,20yとそれぞれ対向するインペラケーシング内側面21x,21yの突条部20px,20pyよりも外周領域にそれぞれの突条部20px,20pyを包囲する環状壁41x,41yを設けている。インペラ20が回転軸心D方向に移動して側面20xとインペラケーシング内側面21xとが接近、離隔すると互いに離隔、接近する流量調整面を、突条部20pxと環状壁41xの対向部分にそれぞれ設けている。同様に、側面20yとインペラケーシング内側面21yとが接近、離隔すると互いに離隔、接近する流量調整面を、突条部20pyと環状壁40yの対向部分にそれぞれ設けている。
【選択図】図7
Description
前記インペラの二つの側面のそれぞれの外周に沿って拡径方向に突出した突条部を設け、前記インペラの側面とそれぞれ対向する前記インペラケーシング内側面における前記突条部よりも外周領域にそれぞれの前記突条部を包囲する環状壁を設け、
前記インペラの回転軸心方向の移動に伴って前記側面と前記インペラケーシング内側面とが接近、離隔すると互いに離隔、接近する流量調整面を、前記側面の突条部と前記環状壁の対向部分にそれぞれ設けたことを特徴とする。
FA∝(b2×L×n)/g1 2
(b:楔形傾斜面の幅、L:楔形傾斜面の長さ、n:楔形傾斜面の数)
と表すことができる。ここで、g2は楔形傾斜面B1〜B8への流入口側の隙間であり、g1は流出側の隙間であり、g2/g1=2〜4の値が通常であり、これにより、Lおよびθが決まってくる。以上より、インペラ20の外径が小さいと、楔面部25−1(25−2)と対向し得る面積(b×L)が狭くなり、楔効果は減少することとなるが、特に、幅bが狭くなると大きく減少する傾向がある。
2 インペラとロータ連結軸
3 インペラ主ケーシング
4 インペラケーシング内側板
5 キャン
6 内外磁石ホルダ
7 外磁石
8 内磁石
9 ロータ
10 ポンプケーシング
11 タイミングプーリ
12 タイミングベルト
13 駆動モータ
13a 出力軸
14 締め付けボルト
15 吸込口
16 吐出口
20 インペラ
20a 吸込孔
20c インペラ中心
20px,20py 突条部
20x,20y 側面
20xs,20ys,41xs,41ys 流量調整面
20−1,20−2 インペラ側板
20−1−1,20−2−1 延長側板
20−3 バランス用筒体
21 インペラケーシング
21x,21y インペラケーシング内側面
21a,25−3 凹溝
21−1,21−2 ケーシング側板
21−1−1 補助吸入筒
22 駆動部ケーシング本体
23 ケーシング主板
23−1 隔壁
23−1a 片端部
23−1b 他端部
23−2 外壁
23−3 上部吐出孔
23−4 下部吐出孔
23−5 閉鎖壁
24 吐出液通路
25−1,25−2 楔面部
25−3 凹溝
26 吸込口
27 吐出口
28 締め付けボルト
29 液体検出センサ
30 ロータ
30−1 取り付け用補助板
30−2 ネジ
31 内キャン
31−1 流入液調整ボス
31−1a 突出部
32 外キャン
33 外磁石
33−1 外磁石用ヨーク
34 内磁石
34−1 内磁石用ヨーク
35 磁石ホルダ
36 ホルダ連結軸
37 駆動モータ
38 キャン
39 矢線
40 ポンプ装置
41x,41y 環状壁
42x,42y 貫通孔
D 回転軸心
P1,P2,P3,P4液圧
Q1 ロータとキャンの接触点
Q2 ロータとキャンの接触点
Q3 インペラとケーシングの接触点
Q4 インペラとケーシングの接触点
B1〜B8 楔形傾斜面
R インペラの回転方向
W 液体の流入方向
θ 楔形傾斜面の傾斜角
g1,g2 楔形傾斜面とインペラ側板との隙間
b 楔形傾斜面幅
L 楔形傾斜面長さ
S スリップ
T 回転力
F 吸引力
Fm 反発力
FA 楔効果による反発力
C1 T−S特性曲線
C2 Fm−S特性曲線
C3 FA−S特性曲線
S1 正常運転時のスリップ
Claims (2)
- クローズド型のインペラの駆動側面にその回転軸心と同軸上に固定された金属製の円筒状ロータを隔壁を隔てて配置された回転磁界発生装置で間接駆動してロータおよびインペラをケーシング内で非接触状態に保持して回転させる機構を備えた、片吸込、上方吐出および片側駆動方式の横置型のポンプ装置において、
前記インペラの二つの側面のそれぞれの外周に沿って拡径方向に突出した突条部を設け、前記インペラの二つの側面とそれぞれ対向する前記インペラケーシング内側面における前記突条部よりも外周領域にそれぞれの前記突条部を包囲する環状壁を設け、
前記インペラの回転軸心方向の移動に伴って前記側面と前記インペラケーシング内側面とが接近、離隔すると互いに離隔、接近する流量調整面を、前記側面の突条部と前記環状壁の対向部分にそれぞれ設けたことを特徴とするポンプ装置。 - 前記環状壁の内周領域と外周領域とを連通する貫通孔を当該環状壁に設けた請求項1記載のポンプ装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007146057A JP4959424B2 (ja) | 2007-05-31 | 2007-05-31 | ポンプ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007146057A JP4959424B2 (ja) | 2007-05-31 | 2007-05-31 | ポンプ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008297997A true JP2008297997A (ja) | 2008-12-11 |
JP4959424B2 JP4959424B2 (ja) | 2012-06-20 |
Family
ID=40171732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007146057A Active JP4959424B2 (ja) | 2007-05-31 | 2007-05-31 | ポンプ装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4959424B2 (ja) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012008297A1 (ja) * | 2010-07-12 | 2012-01-19 | Ntn株式会社 | 遠心式ポンプ装置 |
WO2013072997A1 (ja) * | 2011-11-14 | 2013-05-23 | 五大産業株式会社 | ポンプ装置 |
US8827661B2 (en) | 2008-06-23 | 2014-09-09 | Thoratec Corporation | Blood pump apparatus |
US9067005B2 (en) | 2008-12-08 | 2015-06-30 | Thoratec Corporation | Centrifugal pump apparatus |
US9132215B2 (en) | 2010-02-16 | 2015-09-15 | Thoratee Corporation | Centrifugal pump apparatus |
US9133854B2 (en) | 2010-03-26 | 2015-09-15 | Thoratec Corporation | Centrifugal blood pump device |
US9366261B2 (en) | 2012-01-18 | 2016-06-14 | Thoratec Corporation | Centrifugal pump device |
US9371826B2 (en) | 2013-01-24 | 2016-06-21 | Thoratec Corporation | Impeller position compensation using field oriented control |
US9381285B2 (en) | 2009-03-05 | 2016-07-05 | Thoratec Corporation | Centrifugal pump apparatus |
US9382908B2 (en) | 2010-09-14 | 2016-07-05 | Thoratec Corporation | Centrifugal pump apparatus |
US9410549B2 (en) | 2009-03-06 | 2016-08-09 | Thoratec Corporation | Centrifugal pump apparatus |
US9556873B2 (en) | 2013-02-27 | 2017-01-31 | Tc1 Llc | Startup sequence for centrifugal pump with levitated impeller |
US9623161B2 (en) | 2014-08-26 | 2017-04-18 | Tc1 Llc | Blood pump and method of suction detection |
US9713663B2 (en) | 2013-04-30 | 2017-07-25 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
US9850906B2 (en) | 2011-03-28 | 2017-12-26 | Tc1 Llc | Rotation drive device and centrifugal pump apparatus employing same |
US10052420B2 (en) | 2013-04-30 | 2018-08-21 | Tc1 Llc | Heart beat identification and pump speed synchronization |
US10117983B2 (en) | 2015-11-16 | 2018-11-06 | Tc1 Llc | Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device |
US10166318B2 (en) | 2015-02-12 | 2019-01-01 | Tc1 Llc | System and method for controlling the position of a levitated rotor |
US10245361B2 (en) | 2015-02-13 | 2019-04-02 | Tc1 Llc | Impeller suspension mechanism for heart pump |
US10371152B2 (en) | 2015-02-12 | 2019-08-06 | Tc1 Llc | Alternating pump gaps |
US10506935B2 (en) | 2015-02-11 | 2019-12-17 | Tc1 Llc | Heart beat identification and pump speed synchronization |
JP7388631B2 (ja) | 2019-10-07 | 2023-11-29 | 地方独立行政法人東京都立産業技術研究センター | ポンプ装置 |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4882406A (ja) * | 1972-01-12 | 1973-11-05 | ||
JPS54110803U (ja) * | 1978-01-25 | 1979-08-04 | ||
JPS56162296A (en) * | 1980-05-19 | 1981-12-14 | Hitachi Ltd | Double suction pump |
JPS5885398A (ja) * | 1981-11-16 | 1983-05-21 | Hitachi Ltd | うず巻ポンプ |
JPS603297U (ja) * | 1983-06-20 | 1985-01-11 | 株式会社クボタ | 渦巻ポンプ |
JPS62233493A (ja) * | 1986-03-21 | 1987-10-13 | エルンスト ハウエンシユタイン | 遠心ポンプ |
JPH01178792A (ja) * | 1988-01-06 | 1989-07-14 | Toshiba Corp | 再循環ポンプ |
JPH0914181A (ja) * | 1995-06-27 | 1997-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | バランスピストン機構を備えたターボポンプ |
JPH09268994A (ja) * | 1996-03-30 | 1997-10-14 | Yoshio Yano | 液中軸承のない、マグネットを動力源とするポンプ |
JP2003227489A (ja) * | 2002-02-01 | 2003-08-15 | Dmw Corp | 立軸ポンプ |
JP2004346925A (ja) * | 2003-05-20 | 2004-12-09 | Yoshio Yano | 非接触ポンプの回転部分の非接触を確実にする装置 |
JP2005090478A (ja) * | 2003-08-12 | 2005-04-07 | Uno Mitsuo | ポンプ装置 |
JP2005171825A (ja) * | 2003-12-09 | 2005-06-30 | Ebara Corp | 流体搬送機械 |
-
2007
- 2007-05-31 JP JP2007146057A patent/JP4959424B2/ja active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4882406A (ja) * | 1972-01-12 | 1973-11-05 | ||
JPS54110803U (ja) * | 1978-01-25 | 1979-08-04 | ||
JPS56162296A (en) * | 1980-05-19 | 1981-12-14 | Hitachi Ltd | Double suction pump |
JPS5885398A (ja) * | 1981-11-16 | 1983-05-21 | Hitachi Ltd | うず巻ポンプ |
JPS603297U (ja) * | 1983-06-20 | 1985-01-11 | 株式会社クボタ | 渦巻ポンプ |
JPS62233493A (ja) * | 1986-03-21 | 1987-10-13 | エルンスト ハウエンシユタイン | 遠心ポンプ |
JPH01178792A (ja) * | 1988-01-06 | 1989-07-14 | Toshiba Corp | 再循環ポンプ |
JPH0914181A (ja) * | 1995-06-27 | 1997-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | バランスピストン機構を備えたターボポンプ |
JPH09268994A (ja) * | 1996-03-30 | 1997-10-14 | Yoshio Yano | 液中軸承のない、マグネットを動力源とするポンプ |
JP2003227489A (ja) * | 2002-02-01 | 2003-08-15 | Dmw Corp | 立軸ポンプ |
JP2004346925A (ja) * | 2003-05-20 | 2004-12-09 | Yoshio Yano | 非接触ポンプの回転部分の非接触を確実にする装置 |
JP2005090478A (ja) * | 2003-08-12 | 2005-04-07 | Uno Mitsuo | ポンプ装置 |
JP2005171825A (ja) * | 2003-12-09 | 2005-06-30 | Ebara Corp | 流体搬送機械 |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8827661B2 (en) | 2008-06-23 | 2014-09-09 | Thoratec Corporation | Blood pump apparatus |
US9109601B2 (en) | 2008-06-23 | 2015-08-18 | Thoratec Corporation | Blood pump apparatus |
US9067005B2 (en) | 2008-12-08 | 2015-06-30 | Thoratec Corporation | Centrifugal pump apparatus |
US9381285B2 (en) | 2009-03-05 | 2016-07-05 | Thoratec Corporation | Centrifugal pump apparatus |
US9410549B2 (en) | 2009-03-06 | 2016-08-09 | Thoratec Corporation | Centrifugal pump apparatus |
US9132215B2 (en) | 2010-02-16 | 2015-09-15 | Thoratee Corporation | Centrifugal pump apparatus |
US9133854B2 (en) | 2010-03-26 | 2015-09-15 | Thoratec Corporation | Centrifugal blood pump device |
US9068572B2 (en) | 2010-07-12 | 2015-06-30 | Thoratec Corporation | Centrifugal pump apparatus |
WO2012008297A1 (ja) * | 2010-07-12 | 2012-01-19 | Ntn株式会社 | 遠心式ポンプ装置 |
JP2012021413A (ja) * | 2010-07-12 | 2012-02-02 | Ntn Corp | 遠心式ポンプ装置 |
US9382908B2 (en) | 2010-09-14 | 2016-07-05 | Thoratec Corporation | Centrifugal pump apparatus |
US9638202B2 (en) | 2010-09-14 | 2017-05-02 | Tc1 Llc | Centrifugal pump apparatus |
US9850906B2 (en) | 2011-03-28 | 2017-12-26 | Tc1 Llc | Rotation drive device and centrifugal pump apparatus employing same |
WO2013072997A1 (ja) * | 2011-11-14 | 2013-05-23 | 五大産業株式会社 | ポンプ装置 |
US9366261B2 (en) | 2012-01-18 | 2016-06-14 | Thoratec Corporation | Centrifugal pump device |
US9371826B2 (en) | 2013-01-24 | 2016-06-21 | Thoratec Corporation | Impeller position compensation using field oriented control |
US9709061B2 (en) | 2013-01-24 | 2017-07-18 | Tc1 Llc | Impeller position compensation using field oriented control |
US9556873B2 (en) | 2013-02-27 | 2017-01-31 | Tc1 Llc | Startup sequence for centrifugal pump with levitated impeller |
US9713663B2 (en) | 2013-04-30 | 2017-07-25 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
US10052420B2 (en) | 2013-04-30 | 2018-08-21 | Tc1 Llc | Heart beat identification and pump speed synchronization |
US11724094B2 (en) | 2013-04-30 | 2023-08-15 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
US10980928B2 (en) | 2013-04-30 | 2021-04-20 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
US10456513B2 (en) | 2013-04-30 | 2019-10-29 | Tc1 Llc | Cardiac pump with speed adapted for ventricle unloading |
US9623161B2 (en) | 2014-08-26 | 2017-04-18 | Tc1 Llc | Blood pump and method of suction detection |
US10856748B2 (en) | 2015-02-11 | 2020-12-08 | Tc1 Llc | Heart beat identification and pump speed synchronization |
US11712167B2 (en) | 2015-02-11 | 2023-08-01 | Tc1 Llc | Heart beat identification and pump speed synchronization |
US10506935B2 (en) | 2015-02-11 | 2019-12-17 | Tc1 Llc | Heart beat identification and pump speed synchronization |
US11015605B2 (en) | 2015-02-12 | 2021-05-25 | Tc1 Llc | Alternating pump gaps |
US10874782B2 (en) | 2015-02-12 | 2020-12-29 | Tc1 Llc | System and method for controlling the position of a levitated rotor |
US10371152B2 (en) | 2015-02-12 | 2019-08-06 | Tc1 Llc | Alternating pump gaps |
US10166318B2 (en) | 2015-02-12 | 2019-01-01 | Tc1 Llc | System and method for controlling the position of a levitated rotor |
US11724097B2 (en) | 2015-02-12 | 2023-08-15 | Tc1 Llc | System and method for controlling the position of a levitated rotor |
US11781551B2 (en) | 2015-02-12 | 2023-10-10 | Tc1 Llc | Alternating pump gaps |
US10245361B2 (en) | 2015-02-13 | 2019-04-02 | Tc1 Llc | Impeller suspension mechanism for heart pump |
US10888645B2 (en) | 2015-11-16 | 2021-01-12 | Tc1 Llc | Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device |
US11639722B2 (en) | 2015-11-16 | 2023-05-02 | Tc1 Llc | Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device |
US10117983B2 (en) | 2015-11-16 | 2018-11-06 | Tc1 Llc | Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device |
JP7388631B2 (ja) | 2019-10-07 | 2023-11-29 | 地方独立行政法人東京都立産業技術研究センター | ポンプ装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4959424B2 (ja) | 2012-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4959424B2 (ja) | ポンプ装置 | |
US3938913A (en) | Flow machine for an aggressive, radioactive or special-purity flow medium | |
JP4176753B2 (ja) | 人工心臓ポンプ | |
WO2006066388A1 (en) | Improved pump and method | |
US20040234391A1 (en) | Seal and bearing-free fluid pump incorporating a passively suspended self-positioning impeller | |
US20070177995A1 (en) | Pump device | |
JPH04148094A (ja) | ターボ形ポンプ | |
KR19980071187A (ko) | 액체운송 장치 및 액체운송 펌프의 제어방법 | |
US20170191481A1 (en) | Pump devices | |
JP2006218010A (ja) | 血液ポンプおよび動圧軸受 | |
EP0856666B1 (en) | Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump | |
WO2001031203A1 (fr) | Pompe verticale | |
JP4512150B2 (ja) | 人工心臓ポンプ | |
JP3942579B2 (ja) | ポンプ装置 | |
US20150030479A1 (en) | Wet rotor pump comprising a permanent magnet | |
JP3625657B2 (ja) | 送液ラインポンプ | |
US11692559B2 (en) | Micro hydraulic suspension mechanical pump and assembling method thereof | |
JP2016075481A (ja) | 軸受装置およびこれを備える回転機械 | |
TWI748891B (zh) | 磁浮式泵 | |
JP2010164123A (ja) | 軸固定型流体動圧軸受装置およびこれを備えたスピンドルモータおよび記録ディスク装置 | |
JP2007303316A (ja) | モータポンプ | |
JP2015155682A (ja) | 非接触式軸受ポンプ | |
CA2541550A1 (en) | Pump device | |
JP5435378B2 (ja) | 磁気軸受装置及び該磁気軸受装置を搭載した固液分離機 | |
JP6746277B2 (ja) | ポンプ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20091228 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20111228 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120306 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120321 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150330 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4959424 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |