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
- fluid
- duplex
- outlet
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 64
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims description 31
- 238000012384 transportation and delivery Methods 0.000 claims description 13
- 230000006837 decompression Effects 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002637 fluid replacement therapy Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000012925 reference material 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)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/618,417 US7165396B2 (en) | 2003-07-11 | 2003-07-11 | Pump control override for tandem pumps |
US10/618,417 | 2003-07-11 |
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 (11)
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 |
WO2010028100A1 (en) | 2008-09-03 | 2010-03-11 | 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 |
US9657561B1 (en) | 2016-01-06 | 2017-05-23 | Isodrill, Inc. | Downhole power conversion and management using a dynamically variable displacement pump |
US9464482B1 (en) | 2016-01-06 | 2016-10-11 | Isodrill, Llc | Rotary steerable drilling tool |
CN112177938B (zh) | 2016-08-10 | 2023-05-26 | 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 |
KR20230005840A (ko) | 2020-03-30 | 2023-01-10 | 하이퍼썸, 인크. | 다기능 접속 종방향 단부들을 갖는 액체 제트 펌프를 위한 실린더 |
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 active Active
-
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 |
---|---|
CN1576583A (zh) | 2005-02-09 |
US7165396B2 (en) | 2007-01-23 |
US20050008498A1 (en) | 2005-01-13 |
BRPI0402604B8 (pt) | 2022-11-22 |
EP1496256B1 (en) | 2013-03-20 |
EP1496256A2 (en) | 2005-01-12 |
BRPI0402604B1 (pt) | 2012-09-04 |
EP1496256A3 (en) | 2010-10-06 |
BRPI0402604A (pt) | 2005-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100526643C (zh) | 双联泵的超载控制 | |
US4779417A (en) | Hydraulic pressure system | |
CN100465480C (zh) | 液压起动器控制柱塞 | |
KR100292545B1 (ko) | 로드감지우선순위유압제어밸브시스템 | |
US3662548A (en) | Fluid control system for vehicles | |
US3199286A (en) | Hydrostatic drive | |
US5857330A (en) | Travelling control circuit for a hydraulically driven type of travelling apparatus | |
US5293745A (en) | Fluid power regenerator | |
US4116294A (en) | Torque equalizer for a hydraulically driven, four-wheel-drive vehicle | |
JP2557000B2 (ja) | 操作弁装置 | |
US6109030A (en) | Apparatus and method for ganging multiple open circuit pumps | |
GB2333579A (en) | Displacement control device with servo assisted manual operation | |
US3835647A (en) | Multiple speed hydraulic drive circuit | |
CA1225279A (en) | Variable displacement pump system | |
US5108267A (en) | Dual-mode control for hydrostatic transmission | |
US4689955A (en) | Vibration roller having a power limiting device | |
CN214007638U (zh) | 一种机械式液压泵的功率控制器及液压*** | |
US4696367A (en) | Auxiliary hydrostatic drive system | |
US4518319A (en) | Variable displacement pump system | |
US3775980A (en) | Hydrostatic transmission | |
US3972188A (en) | Control system with actuator powered by dual sources | |
JPH0111983Y2 (zh) | ||
US4341280A (en) | Variable displacement front wheel drive system | |
JPH0638934Y2 (ja) | 走行車輌の走行速度切換装置 | |
SU1357295A1 (ru) | Двухступенчатое управл ющее устройство транспортного средства с компенсацией давлени по крайней мере дл двух потребителей |
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 |
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. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20090812 |