JP2019065757A - プランジャポンプ - Google Patents
プランジャポンプ Download PDFInfo
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- JP2019065757A JP2019065757A JP2017191361A JP2017191361A JP2019065757A JP 2019065757 A JP2019065757 A JP 2019065757A JP 2017191361 A JP2017191361 A JP 2017191361A JP 2017191361 A JP2017191361 A JP 2017191361A JP 2019065757 A JP2019065757 A JP 2019065757A
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- JP
- Japan
- Prior art keywords
- plunger
- cylinder
- resin
- cylinder chamber
- hardness
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
- F04B7/0046—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for rotating distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/02—Packing the free space between cylinders and pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/164—Stoffing boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
- F04B7/0053—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for reciprocating distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0084—Component parts or details specially adapted therefor
- F04B7/0088—Sealing arrangements between the distribution members and the housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
- F04B7/06—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/047—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/12—Polyetheretherketones, e.g. PEEK
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/10—Hardness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
図1及び図2に示すように、第1の実施形態に係るプランジャポンプ1は、主に析出性や固着性を有する流体や、浸透性が非常に高い流体などの移送に用いられ得る。移送される流体としては、例えば医療用分析装置等で使用される生理食塩水に近いバッファ液(緩衝液)や各種の試薬、人工透析装置で使用される透析液などの析出や固着が発生し易く、浸透性が高い液体が挙げられる。
次に、第2の実施形態に係るプランジャポンプ1について説明する。
なお、図4を含む以降の説明において、第1の実施形態と同一の構成要素に関しては同一の参照符号を附しているので、以下では重複する説明は省略する。
その他、図示は省略するが、プランジャポンプ1は、次のような構成を備えていてもよい。例えば、スペーサ部14のスペーサ内周面14a、シリンダ本体12Aのシリンダ内周面12a及びプランジャ13のプランジャ外周面13aの少なくとも一つに、凹状或いは溝形状の空間からなる液溜り部が形成されていてもよい。液溜り部を設けることで、プランジャ13のプランジャ外周面13aとの各摺動部分をよりウェットな状態に保つことができるので、析出や固着をより起こり難くすることができる。
更に、その他の実施形態として、プランジャポンプ1のプランジャ13の基端側付近からの液漏れが極少量であるか、又は液漏れの発生がポンプ使用上問題とならないような場合では、リップシール21やバリシール29(及びこれらと共にバックシート22)を使用せずに、スペーサ部14のみが収容孔28内に配置される構造も採ることができる。
10,10A ポンプヘッド
11 ポンプブラケット
12 シリンダ
12A シリンダ本体
12a シリンダ内周面
12b シリンダ外周面
13 プランジャ
13a プランジャ外周面
14 スペーサ部
14a スペーサ内周面
14b スペーサ外周面
15 シリンダ室
16 吸込口
17 吐出口
18 カット面
19 フランジ
20 モータ
21 リップシール
22 バックシート
23 ナット
24 フロントフレーム
25 リアフレーム
26 首振り軸
27 ピン
29 バリシール
30 ドライブ継手ユニット
Claims (5)
- 内部にシリンダ室を有するシリンダと、
外周面が前記シリンダの内周面に摺接するように前記シリンダ室に対して進退自在に配置されると共に、先端部外周にカット面が形成されたプランジャと、
前記シリンダに、前記シリンダ室に繋がるように設けられた吸込口及び吐出口とを備え、
前記プランジャを前記シリンダ室に対して回転運動させながら軸方向に往復運動させることで、前記吸込口及び吐出口を交互に前記シリンダ室に連通させて流体の移送を行うプランジャポンプであって、
前記シリンダは、シリンダ本体と、このシリンダ本体の基端側の内側部分に装着され、前記プランジャの前記シリンダ室に進退する部分よりも基端側の部分と摺動するスペーサ部とを備え、
前記シリンダの基端部側に設けられ、前記シリンダ本体、前記プランジャ及び前記スペーサ部をシールするシール部を更に備えた
ことを特徴とするプランジャポンプ。 - 前記シリンダ本体は、第1の硬度の材料からなり、
前記スペーサ部は、前記第1の硬度より柔らかい第2の硬度の樹脂材料からなる
ことを特徴とする請求項1記載のプランジャポンプ。 - 前記スペーサ部は、撥水性及び耐摩耗性の少なくとも一つを有する材料からなる
ことを特徴とする請求項1又は2記載のプランジャポンプ。 - 前記第1の硬度は、モース硬度で8〜13であり、前記第2の硬度は、Rスケールのロックウェル硬度で130以下である
ことを特徴とする請求項2又は3記載のプランジャポンプ。 - 前記樹脂材料は、PTFE(ポリテトラフルオロエチレン)樹脂、PP(ポリプロピレン)樹脂、PE(ポリエチレン)樹脂、PVDF(ポリフッ化ビニリデン)樹脂、UHMWPE(超高分子量ポリエチレン)樹脂、PPS(ポリフェニレンサルファイド)樹脂、PEEK(ポリエーテルエーテルケトン)樹脂、PSU(ポリスルホン)樹脂、POM(ポリアセタール)樹脂、及びPA6(ポリアミド6、6ナイロン)樹脂のいずれか1つである
ことを特徴とする請求項2〜4のいずれか1項記載のプランジャポンプ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017191361A JP6905442B2 (ja) | 2017-09-29 | 2017-09-29 | プランジャポンプ |
US15/869,262 US11105321B2 (en) | 2017-09-29 | 2018-01-12 | Plunger pump having a rotatable plunger with cut face disposed in a cylinder wherein the cylinder includes a main body and a spacer section with the spacer section having a greater length in an axial direction than the maximum stroke length of the plunger |
CN201820060924.4U CN207906006U (zh) | 2017-09-29 | 2018-01-15 | 活塞泵 |
CN201810035635.3A CN109578236B (zh) | 2017-09-29 | 2018-01-15 | 活塞泵 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017191361A JP6905442B2 (ja) | 2017-09-29 | 2017-09-29 | プランジャポンプ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019065757A true JP2019065757A (ja) | 2019-04-25 |
JP6905442B2 JP6905442B2 (ja) | 2021-07-21 |
Family
ID=63567498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017191361A Active JP6905442B2 (ja) | 2017-09-29 | 2017-09-29 | プランジャポンプ |
Country Status (3)
Country | Link |
---|---|
US (1) | US11105321B2 (ja) |
JP (1) | JP6905442B2 (ja) |
CN (2) | CN109578236B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112780515A (zh) * | 2019-11-05 | 2021-05-11 | 信浓绢糸株式会社 | 柱塞泵 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6905442B2 (ja) * | 2017-09-29 | 2021-07-21 | 株式会社イワキ | プランジャポンプ |
US11898555B2 (en) | 2019-01-31 | 2024-02-13 | Kyocera Corporation | Plunger pump, liquid feeding device, and liquid chromatography device |
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-
2017
- 2017-09-29 JP JP2017191361A patent/JP6905442B2/ja active Active
-
2018
- 2018-01-12 US US15/869,262 patent/US11105321B2/en active Active
- 2018-01-15 CN CN201810035635.3A patent/CN109578236B/zh active Active
- 2018-01-15 CN CN201820060924.4U patent/CN207906006U/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3382812A (en) * | 1966-09-27 | 1968-05-14 | Gorman Rupp Ind Inc | Variable positive displacement pump |
JPS5919981U (ja) * | 1982-07-27 | 1984-02-07 | サヌキ工業株式会社 | プランジヤ−ポンプ |
JP2007502939A (ja) * | 2003-05-27 | 2007-02-15 | ロピンタスコ・ツー・エルエルシー | 蒸着されたポリマー表面を備えたピストン及び/又はライナを有する容積移送式ポンプ |
JP2017137780A (ja) * | 2016-02-01 | 2017-08-10 | 株式会社イワキ | プランジャポンプ |
Cited By (2)
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CN112780515A (zh) * | 2019-11-05 | 2021-05-11 | 信浓绢糸株式会社 | 柱塞泵 |
JP2021076028A (ja) * | 2019-11-05 | 2021-05-20 | シナノケンシ株式会社 | プランジャポンプ |
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US20190101107A1 (en) | 2019-04-04 |
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