CN100526643C - 双联泵的超载控制 - Google Patents
双联泵的超载控制 Download PDFInfo
- Publication number
- CN100526643C CN100526643C CNB2004100688179A CN200410068817A CN100526643C CN 100526643 C CN100526643 C CN 100526643C CN B2004100688179 A CNB2004100688179 A CN B2004100688179A CN 200410068817 A CN200410068817 A CN 200410068817A CN 100526643 C CN100526643 C CN 100526643C
- Authority
- CN
- China
- Prior art keywords
- pump
- pressure
- outlet
- displacement
- liquid
- 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.)
- Expired - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims description 16
- 230000009977 dual effect Effects 0.000 abstract description 8
- 230000007935 neutral effect Effects 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013585 weight reducing agent 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- 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
- F04B1/22—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 having two or more sets of cylinders or 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
- 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
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
- F16H61/448—Control circuits for tandem pumps or motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/618,417 | 2003-07-11 | ||
| US10/618,417 US7165396B2 (en) | 2003-07-11 | 2003-07-11 | Pump control override for tandem pumps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576583A CN1576583A (zh) | 2005-02-09 |
| CN100526643C true CN100526643C (zh) | 2009-08-12 |
Family
ID=33452710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100688179A Expired - Lifetime CN100526643C (zh) | 2003-07-11 | 2004-07-05 | 双联泵的超载控制 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7165396B2 (zh) |
| EP (1) | EP1496256B1 (zh) |
| CN (1) | CN100526643C (zh) |
| BR (1) | BRPI0402604B8 (zh) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4915161B2 (ja) * | 2006-07-24 | 2012-04-11 | 株式会社 神崎高級工機製作所 | 多連ポンプユニット |
| US8286984B2 (en) * | 2007-12-18 | 2012-10-16 | Dillon Ben N | Articulated combine with unloading and rear bogey steering architecture |
| US9234532B2 (en) | 2008-09-03 | 2016-01-12 | Parker-Hannifin Corporation | Velocity control of unbalanced hydraulic actuator subjected to over-center load conditions |
| US20120297758A1 (en) * | 2011-05-23 | 2012-11-29 | Caterpillar, Inc. | Large Displacement Variator |
| US9003955B1 (en) | 2014-01-24 | 2015-04-14 | Omax Corporation | Pump systems and associated methods for use with waterjet systems and other high pressure fluid systems |
| US9464482B1 (en) | 2016-01-06 | 2016-10-11 | Isodrill, Llc | Rotary steerable drilling tool |
| US9657561B1 (en) | 2016-01-06 | 2017-05-23 | Isodrill, Inc. | Downhole power conversion and management using a dynamically variable displacement pump |
| CN109863308B (zh) | 2016-08-10 | 2020-09-15 | 可克斯塔特国际股份有限公司 | 模块化多级泵组件 |
| US10808688B1 (en) | 2017-07-03 | 2020-10-20 | Omax Corporation | High pressure pumps having a check valve keeper and associated systems and methods |
| CN108644083B (zh) * | 2018-05-17 | 2019-08-23 | 燕山大学 | 一种两级压力输出的超高压轴向柱塞泵 |
| WO2021195106A1 (en) | 2020-03-24 | 2021-09-30 | Hypertherm, Inc. | High-pressure seal for a liquid jet cutting system |
| CN115698507A (zh) | 2020-03-30 | 2023-02-03 | 海别得公司 | 用于具有多功能接口纵向端的液体喷射泵的气缸 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941514A (en) * | 1974-05-20 | 1976-03-02 | Sundstrand Corporation | Torque limiting control |
| US3985472A (en) * | 1975-04-23 | 1976-10-12 | International Harvester Company | Combined fixed and variable displacement pump system |
| US3999892A (en) * | 1976-02-09 | 1976-12-28 | Caterpillar Tractor Co. | Interconnected pump control means of a plurality of pumps |
| US4461147A (en) * | 1981-10-27 | 1984-07-24 | Sundstrand Corporation | Variable displacement hydraulic control with override |
| US4936095A (en) * | 1988-10-28 | 1990-06-26 | Eaton Corporation | Hydrostatic transmission system and power limiter control therefor |
| DE19625393A1 (de) * | 1996-05-22 | 1998-01-02 | Brueninghaus Hydromatik Gmbh | Drehwerksteuerung mit doppelseitiger Bremsung |
| JPH11218102A (ja) * | 1997-11-11 | 1999-08-10 | Komatsu Ltd | 圧油供給装置 |
| US6119456A (en) * | 1998-01-21 | 2000-09-19 | Sauer Inc. | Displacement control with load feedback and stroke control for a hydraulic unit |
| US6109030A (en) * | 1998-02-13 | 2000-08-29 | Sauer Inc. | Apparatus and method for ganging multiple open circuit pumps |
| WO2001083992A1 (en) * | 2000-04-27 | 2001-11-08 | Sauer Inc. | Neutral override for servo controlled hydrostatic units |
-
2003
- 2003-07-11 US US10/618,417 patent/US7165396B2/en not_active Expired - Lifetime
-
2004
- 2004-06-30 BR BRPI0402604A patent/BRPI0402604B8/pt not_active IP Right Cessation
- 2004-07-05 CN CNB2004100688179A patent/CN100526643C/zh not_active Expired - Lifetime
- 2004-07-07 EP EP04015988A patent/EP1496256B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0402604A (pt) | 2005-04-05 |
| US7165396B2 (en) | 2007-01-23 |
| BRPI0402604B1 (pt) | 2012-09-04 |
| CN1576583A (zh) | 2005-02-09 |
| EP1496256B1 (en) | 2013-03-20 |
| EP1496256A2 (en) | 2005-01-12 |
| US20050008498A1 (en) | 2005-01-13 |
| BRPI0402604B8 (pt) | 2022-11-22 |
| EP1496256A3 (en) | 2010-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100526643C (zh) | 双联泵的超载控制 | |
| US4212596A (en) | Pressurized fluid supply system | |
| JP5188444B2 (ja) | 作業機の液圧駆動装置 | |
| JP2557000B2 (ja) | 操作弁装置 | |
| JP3084527B2 (ja) | 集合連動ポンプ装置及び複数の開回路ポンプを位相関係をなして段階的に制御する方法 | |
| KR20120062612A (ko) | 펌프 유닛 | |
| KR20180037126A (ko) | 건설기계용 유압 시스템 | |
| KR20180037127A (ko) | 건설기계용 유압 시스템 | |
| US10316867B2 (en) | Hydraulic rotary actuator with built-in mechanical position feedback | |
| US3700356A (en) | Fluid system | |
| JPS6230308B2 (zh) | ||
| JP2002021807A (ja) | 電動液圧駆動装置及びアクチュエータ駆動装置 | |
| WO1996008652A1 (en) | Capacity controller of variable capacity hydraulic pump | |
| JP3891616B2 (ja) | 可変容量ポンプの入力トルク制御回路 | |
| KR100773987B1 (ko) | 2 펌프 구조의 사판식 액셜 피스톤 유압 펌프 | |
| JPH0111983Y2 (zh) | ||
| EP0153064B1 (en) | Variable displacement pump system | |
| JP2004316839A (ja) | 液圧駆動装置 | |
| JPH08338405A (ja) | 可変容量型油圧ポンプの容量制御装置 | |
| JPH11148463A (ja) | 油圧ポンプ容量制御装置 | |
| JP2679757B2 (ja) | 建設機械の油圧駆動回路 | |
| CN117693622A (zh) | 具有可变输出流的电动液压动力单元 | |
| JP3112189B2 (ja) | 可変容量型油圧ポンプの容量制御装置 | |
| JP2005207499A (ja) | 建設機械の油圧回路 | |
| JP2567810Y2 (ja) | 油圧システム |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190618 Address after: Dublin, Ireland Patentee after: Eaton Intelligent Power Co.,Ltd. Address before: Ohio, USA Patentee before: Eaton Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220510 Address after: Denmark nordburg Patentee after: Danfoss power system II Technology Co.,Ltd. Address before: Irish Dublin Patentee before: Eaton Intelligent Power Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231030 Address after: Denmark nordburg Patentee after: DANFOSS A/S Address before: Denmark nordburg Patentee before: Danfoss power system II Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |