JP2023010903A - 油圧ポンプ - Google Patents
油圧ポンプ Download PDFInfo
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- JP2023010903A JP2023010903A JP2022186667A JP2022186667A JP2023010903A JP 2023010903 A JP2023010903 A JP 2023010903A JP 2022186667 A JP2022186667 A JP 2022186667A JP 2022186667 A JP2022186667 A JP 2022186667A JP 2023010903 A JP2023010903 A JP 2023010903A
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- Prior art keywords
- pressure
- swash plate
- hydraulic pump
- pressing
- pressing means
- 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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- 230000007423 decrease Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 31
- 230000004048 modification Effects 0.000 description 17
- 238000012986 modification Methods 0.000 description 17
- 230000007246 mechanism Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013642 negative control Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
- F04B1/326—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate using wedges
-
- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
- F04B27/0878—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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/14—Control
- F04B27/20—Control of pumps with rotary cylinder block
- F04B27/22—Control of pumps with rotary cylinder block by varying the relative positions of a swash plate and a cylinder block
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working 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
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/06—Pressure in a (hydraulic) circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/11—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
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/301—Pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
複数のシリンダ穴を有し、回転可能に配置されたシリンダブロックと、
各シリンダ穴内に移動自在に保持されたピストンと、
傾転角の大きさに応じて前記ピストンの移動量を制御する斜板と、
前記斜板の傾転角が小さくなる向きに前記斜板を押す第1押付手段と、
外部から供給される圧力により前記斜板の傾転角が大きくなる向きに前記斜板を押す第2押付手段と、を備える。
前記第2押付手段は、前記斜板をその傾転角が大きくなる向きに押す押付ロッドを有し、
前記押付ロッドにおける前記斜板と反対側の端面に前記圧力が作用してもよい。
前記圧力は、ネガティブ流量制御圧力に対応した圧力であってもよい。
前記圧力は、ロードセンシング流量制御圧力に対応した圧力であってもよい。
前記圧力は、ポジティブ流量制御圧力に対応した圧力であってもよい。
前記圧力は、ロックレバー圧力に対応した圧力であってもよい。
前記圧力は、電気信号が電磁比例弁により油圧に変換された圧力であってもよい。
20 ハウジング
21 第1ハウジングブロック
23 第1ガイド部
29 凹部
22 第2ハウジングブロック
25 回転軸
30 シリンダブロック
32 シリンダ穴
35 吸排プレート
38 ピストン
40 斜板
41 主面
42 作用面
43 シュー
50 第1押付手段
51 第1リテーナ
52 第2リテーナ
54 第1スプリング
55 第2スプリング
60 第2押付手段
61 押付ロッド
61a 先端面
61b 後端面(端面)
61c 側面
65 圧力室
71 パイロットポンプ
73 タンク
75 コントロールバルブ
81 方向切換弁
82 方向切換弁
83 方向切換弁
85 方向切換弁
Claims (7)
- 複数のシリンダ穴を有し、回転可能に配置されたシリンダブロックと、
各シリンダ穴内に移動自在に保持されたピストンと、
傾転角の大きさに応じて前記ピストンの移動量を制御する斜板と、
前記斜板の傾転角が小さくなる向きに前記斜板を押す第1押付手段と、
外部から供給される圧力により前記斜板の傾転角が大きくなる向きに前記斜板を押す第2押付手段と、を備えた、油圧ポンプ。 - 前記第2押付手段は、前記斜板をその傾転角が大きくなる向きに押す押付ロッドを有し、
前記押付ロッドにおける前記斜板と反対側の端面に前記圧力が作用する、請求項1に記載の油圧ポンプ。 - 前記圧力は、ネガティブ流量制御圧力に対応した圧力である、請求項1又は2に記載の油圧ポンプ。
- 前記圧力は、ロードセンシング流量制御圧力に対応した圧力である、請求項1又は2に記載の油圧ポンプ。
- 前記圧力は、ポジティブ流量制御圧力に対応した圧力である、請求項1又は2に記載の油圧ポンプ。
- 前記圧力は、ロックレバー圧力に対応した圧力である、請求項1又は2に記載の油圧ポンプ。
- 前記圧力は、電気信号が電磁比例弁により油圧に変換された圧力である、請求項1~6のいずれかに記載の油圧ポンプ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022186667A JP2023010903A (ja) | 2018-05-17 | 2022-11-22 | 油圧ポンプ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018095555A JP2019199847A (ja) | 2018-05-17 | 2018-05-17 | 油圧ポンプ |
JP2022186667A JP2023010903A (ja) | 2018-05-17 | 2022-11-22 | 油圧ポンプ |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018095555A Division JP2019199847A (ja) | 2018-05-17 | 2018-05-17 | 油圧ポンプ |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2023010903A true JP2023010903A (ja) | 2023-01-20 |
Family
ID=66397124
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018095555A Pending JP2019199847A (ja) | 2018-05-17 | 2018-05-17 | 油圧ポンプ |
JP2022186667A Pending JP2023010903A (ja) | 2018-05-17 | 2022-11-22 | 油圧ポンプ |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018095555A Pending JP2019199847A (ja) | 2018-05-17 | 2018-05-17 | 油圧ポンプ |
Country Status (6)
Country | Link |
---|---|
US (2) | US11603830B2 (ja) |
EP (1) | EP3569860B1 (ja) |
JP (2) | JP2019199847A (ja) |
KR (1) | KR102664199B1 (ja) |
CN (2) | CN110500253B (ja) |
DK (1) | DK3569860T3 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210048224A (ko) | 2019-10-23 | 2021-05-03 | 주식회사 엘지화학 | 가압식 분리막 저항 측정 장치 및 측정 방법 |
EP4093970A4 (en) * | 2020-01-23 | 2024-03-27 | Hess Corp | SUBMERSIBLE PUMP ASSEMBLY AND METHOD OF USE |
JP7352517B2 (ja) * | 2020-05-26 | 2023-09-28 | Kyb株式会社 | 液圧回転機 |
JP7026167B2 (ja) * | 2020-05-26 | 2022-02-25 | Kyb株式会社 | 液圧回転機 |
Family Cites Families (23)
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US2915985A (en) * | 1957-06-20 | 1959-12-08 | New York Air Brake Co | Pump |
US3221660A (en) * | 1963-08-20 | 1965-12-07 | Amato Michael A D | Automatic control for variable displacement pump |
US3426686A (en) * | 1966-04-04 | 1969-02-11 | Ulrich Mfg Co | Pump |
US3738779A (en) * | 1971-06-28 | 1973-06-12 | Caterpillar Tractor Co | Variable displacement pump having pressure compensation control means |
US3834836A (en) * | 1973-03-01 | 1974-09-10 | Caterpillar Tractor Co | Override control for a variable displacement pump |
US4097196A (en) * | 1976-06-01 | 1978-06-27 | Caterpillar Tractor Co. | Pilot operated pressure compensated pump control |
JPH0526151A (ja) * | 1991-07-16 | 1993-02-02 | Toyota Autom Loom Works Ltd | 油圧駆動装置 |
JP2669202B2 (ja) * | 1991-08-12 | 1997-10-27 | 株式会社豊田自動織機製作所 | 産業車両の油圧装置 |
US5251536A (en) * | 1992-01-15 | 1993-10-12 | Caterpillar Inc. | Axial piston pump with off-center pivot |
JPH07233782A (ja) * | 1993-04-12 | 1995-09-05 | Toyota Autom Loom Works Ltd | 油圧システム |
JPH07189916A (ja) * | 1993-12-28 | 1995-07-28 | Kayaba Ind Co Ltd | 2連可変ポンプの制御機構 |
US5758499A (en) * | 1995-03-03 | 1998-06-02 | Hitachi Construction Machinery Co., Ltd. | Hydraulic control system |
JP3612869B2 (ja) * | 1996-07-11 | 2005-01-19 | ソニー株式会社 | ウエハの薬液処理装置 |
JP3787063B2 (ja) | 2000-11-07 | 2006-06-21 | ボッシュ・レックスロス株式会社 | 可変容量ポンプの吐出量制御装置 |
US6623247B2 (en) * | 2001-05-16 | 2003-09-23 | Caterpillar Inc | Method and apparatus for controlling a variable displacement hydraulic pump |
JP2005201301A (ja) * | 2004-01-13 | 2005-07-28 | Hitachi Constr Mach Co Ltd | 可変容量型油圧ポンプの傾転制御装置 |
US9309899B2 (en) * | 2010-06-30 | 2016-04-12 | Volvo Construction Equipment Ab | Control device for a hydraulic pump of construction machinery |
JP5982115B2 (ja) * | 2011-11-25 | 2016-08-31 | Kyb株式会社 | 斜板式ピストンポンプ |
EP2767713A1 (en) * | 2013-02-19 | 2014-08-20 | Innas B.V. | Hydraulic swash block positioning system |
DE102013225569A1 (de) * | 2013-12-11 | 2015-06-11 | Robert Bosch Gmbh | Schrägscheibenmaschine |
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JP6740032B2 (ja) * | 2016-06-27 | 2020-08-12 | ナブテスコ株式会社 | 油圧ポンプ |
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2018
- 2018-05-17 JP JP2018095555A patent/JP2019199847A/ja active Pending
-
2019
- 2019-04-29 CN CN201910355567.3A patent/CN110500253B/zh active Active
- 2019-04-29 CN CN202211610020.1A patent/CN115853731A/zh active Pending
- 2019-05-03 US US16/402,536 patent/US11603830B2/en active Active
- 2019-05-03 EP EP19172529.0A patent/EP3569860B1/en active Active
- 2019-05-03 DK DK19172529.0T patent/DK3569860T3/da active
- 2019-05-03 KR KR1020190051940A patent/KR102664199B1/ko active IP Right Grant
-
2022
- 2022-11-22 JP JP2022186667A patent/JP2023010903A/ja active Pending
-
2023
- 2023-02-13 US US18/168,108 patent/US20230193886A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2019199847A (ja) | 2019-11-21 |
CN110500253B (zh) | 2023-04-14 |
EP3569860A1 (en) | 2019-11-20 |
CN115853731A (zh) | 2023-03-28 |
KR102664199B1 (ko) | 2024-05-14 |
EP3569860B1 (en) | 2023-04-05 |
CN110500253A (zh) | 2019-11-26 |
DK3569860T3 (da) | 2023-07-03 |
US20230193886A1 (en) | 2023-06-22 |
US11603830B2 (en) | 2023-03-14 |
US20190353150A1 (en) | 2019-11-21 |
KR20190132213A (ko) | 2019-11-27 |
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