FR2308808A1 - Systeme de pompes a debits unitaires constant et variable combines - Google Patents
Systeme de pompes a debits unitaires constant et variable combinesInfo
- Publication number
- FR2308808A1 FR2308808A1 FR7611308A FR7611308A FR2308808A1 FR 2308808 A1 FR2308808 A1 FR 2308808A1 FR 7611308 A FR7611308 A FR 7611308A FR 7611308 A FR7611308 A FR 7611308A FR 2308808 A1 FR2308808 A1 FR 2308808A1
- Authority
- FR
- France
- Prior art keywords
- variable unit
- unit flow
- flow pumps
- combined constant
- pumps system
- 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
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
- 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
- F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
-
- 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
- F04B49/22—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 means of valves
- F04B49/24—Bypassing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/570,970 US3985472A (en) | 1975-04-23 | 1975-04-23 | Combined fixed and variable displacement pump system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2308808A1 true FR2308808A1 (fr) | 1976-11-19 |
FR2308808B3 FR2308808B3 (fr) | 1979-01-12 |
Family
ID=24281808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7611308A Granted FR2308808A1 (fr) | 1975-04-23 | 1976-04-16 | Systeme de pompes a debits unitaires constant et variable combines |
Country Status (3)
Country | Link |
---|---|
US (1) | US3985472A (fr) |
JP (1) | JPS51124801A (fr) |
FR (1) | FR2308808A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0254867A2 (fr) * | 1986-08-01 | 1988-02-03 | MAN Nutzfahrzeuge Aktiengesellschaft | Dispositif pour changer avec peu de perte le débit d'une pompe à débit constant |
FR2609309A1 (fr) * | 1987-01-05 | 1988-07-08 | Lebozec & Gautier | Dispositif de controle du fonctionnement d'une pompe |
FR2766525A1 (fr) * | 1997-12-02 | 1999-01-29 | Poclain Hydraulics Sa | Circuit d'alimentation en fluide d'un recepteur equipe de moyens pour soumettre ce recepteur a une loi de pression |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2505780C2 (de) * | 1975-02-12 | 1986-03-06 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum Regeln wenigstens einer verstellbaren Pumpe |
DE2855085C2 (de) * | 1978-08-18 | 1986-04-24 | S.R.M. Hydromekanik Ab, Stockholm | Pumpenanordnung zur Versorgung von Verbrauchern mit stark schwankendem Bedarf an Druckflüssigkeit |
IT1127688B (it) * | 1978-12-13 | 1986-05-21 | Hobourn Eaton Ltd | Gruppo di pompa volumetrica |
IT1127689B (it) * | 1978-12-13 | 1986-05-21 | Hobourn Eaton Ltd | Gruppo di pompa volumetrica |
US4383412A (en) * | 1979-10-17 | 1983-05-17 | Cross Manufacturing, Inc. | Multiple pump load sensing system |
US4359130A (en) * | 1980-05-27 | 1982-11-16 | International Harvester Co. | Hydraulic system for responsive splitting of engine power |
US4382485A (en) * | 1980-05-27 | 1983-05-10 | Dresser Industries, Inc. | Hydraulic logic control for variable displacement pump |
US4412789A (en) * | 1980-10-31 | 1983-11-01 | Jidosha Kiki Co., Ltd. | Oil pump unit |
JPS57154503A (en) * | 1981-03-13 | 1982-09-24 | Jidosha Kiki Co Ltd | Pressurized fluid feeder |
JPS58180790A (ja) * | 1982-04-19 | 1983-10-22 | Jidosha Kiki Co Ltd | オイルポンプ |
US4498846A (en) * | 1983-06-20 | 1985-02-12 | Deere & Company | Stroke control valve |
JPS60128999U (ja) * | 1984-02-08 | 1985-08-29 | 株式会社小松製作所 | 可変液圧ポンプの容量制御装置 |
US4711616A (en) * | 1984-12-13 | 1987-12-08 | Nippondenso Co., Ltd. | Control apparatus for a variable displacement pump |
US4648803A (en) * | 1985-09-17 | 1987-03-10 | Deere & Company | Control circuit and control valve for radial piston pump |
DE3600787C1 (de) * | 1986-01-14 | 1987-04-02 | Danfoss As | Steuergeraet fuer eine Pumpe mit einstellbarer Foerdermenge |
GB8803974D0 (en) * | 1988-02-20 | 1988-03-23 | Fletcher Sutcliffe Wild Ltd | Hydraulic pump |
SE466560B (sv) * | 1989-06-21 | 1992-03-02 | Vme Ind Sweden Ab | Lastmaskin med en foersta och en andra pump foer matning av tryckolja till minst en hydrauliskt driven arbetskomponent saasom enhydraulcylinder eller hydraulmotor |
US5168704A (en) * | 1990-08-17 | 1992-12-08 | General Electric Company | Gas turbine engine fuel and actuation pressure pumping system |
US5540050A (en) * | 1994-03-01 | 1996-07-30 | Caterpillar Inc. | Hydraulic system providing a positive actuator force |
DE19502235A1 (de) * | 1995-01-25 | 1996-08-08 | Daimler Benz Ag | Ölversorgungssystem |
ES2150345B1 (es) * | 1997-12-17 | 2001-05-16 | Puig Jordi Renedo | Mejoras en la regulacion de centrales de acondicionamiento de fluidos. |
US6478550B2 (en) | 1998-06-12 | 2002-11-12 | Daikin Industries, Ltd. | Multi-stage capacity-controlled scroll compressor |
JP2974009B1 (ja) * | 1998-06-12 | 1999-11-08 | ダイキン工業株式会社 | 多段階容量制御スクロール圧縮機 |
US6029445A (en) * | 1999-01-20 | 2000-02-29 | Case Corporation | Variable flow hydraulic system |
DE10136416A1 (de) * | 2001-07-26 | 2003-02-13 | Brueninghaus Hydromatik Gmbh | Ventilblock für eine Regelvorrichtung, insbesondere für eine hydrostatische Maschine |
US7384183B2 (en) * | 2002-09-06 | 2008-06-10 | Global Ground Support, Llc | Mobile decontamination unit |
US7165396B2 (en) * | 2003-07-11 | 2007-01-23 | Eaton Corporation | Pump control override for tandem pumps |
WO2006033207A1 (fr) * | 2004-09-22 | 2006-03-30 | Tbk Co., Ltd. | Systeme de fonctionnement a vide d’une pompe tandem |
KR101175385B1 (ko) * | 2006-06-16 | 2012-08-20 | 엘지전자 주식회사 | 지열을 이용한 공기조화기 |
US8128377B2 (en) * | 2007-04-03 | 2012-03-06 | GM Global Technology Operations LLC | Split-pressure dual pump hydraulic fluid supply system for a multi-speed transmission and method |
US20090025380A1 (en) | 2007-07-24 | 2009-01-29 | Parker Hannifin Corporation, An Ohio Corporation | Fixed/variable hybrid system |
US7934547B2 (en) * | 2007-08-17 | 2011-05-03 | Schlumberger Technology Corporation | Apparatus and methods to control fluid flow in a downhole tool |
FI123634B (fi) * | 2007-10-05 | 2013-08-30 | Sandvik Mining & Constr Oy | Kallionrikkomislaite, suojaventtiili sekä menetelmä kallionrikkomislaitteen käyttämiseksi |
EP2055953B1 (fr) * | 2007-11-01 | 2018-08-15 | Danfoss Power Solutions Aps | Machine de travail pour fluides |
EP2055942B1 (fr) * | 2007-11-01 | 2012-06-06 | Sauer-Danfoss ApS | Système hydraulique avec pompe supplémentaire |
DE102007062030A1 (de) * | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Hydraulikfluidpumpe einer Fahrzeugbremsanlage mit einem Fördermittel |
US8801407B2 (en) * | 2010-02-24 | 2014-08-12 | Harris Waste Management Group, Inc. | Hybrid electro-hydraulic power device |
US9217422B2 (en) * | 2012-02-13 | 2015-12-22 | Lud Davis | Kinetic energy transfer system and methods |
US9556721B2 (en) | 2012-12-07 | 2017-01-31 | Schlumberger Technology Corporation | Dual-pump formation fracturing |
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 |
WO2018044323A1 (fr) | 2016-09-02 | 2018-03-08 | Halliburton Energy Services, Inc. | Systèmes de motorisation hybride pour opérations de stimulation de puits |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2546034A (en) * | 1950-01-21 | 1951-03-20 | Thompson Prod Inc | Multiple pump and motor unit for aircraft fuel systems |
US3060858A (en) * | 1955-11-24 | 1962-10-30 | Shoosmith Guy Taite | Pump installation |
US3526468A (en) * | 1968-11-13 | 1970-09-01 | Deere & Co | Multiple pump power on demand hydraulic system |
SE369948B (fr) * | 1969-12-03 | 1974-09-23 | I Soeyland | |
NO124443B (fr) * | 1970-04-22 | 1972-04-17 | Ingebret Soeyland | |
BE794115A (fr) * | 1971-03-24 | 1973-05-16 | Caterpillar Tractor Co | Dispositif de valve sommatrice |
US3841795A (en) * | 1972-07-17 | 1974-10-15 | Caterpillar Tractor Co | Combined engine speed and pressure responsive control for variable displacement pumps |
-
1975
- 1975-04-23 US US05/570,970 patent/US3985472A/en not_active Expired - Lifetime
-
1976
- 1976-03-05 JP JP51024045A patent/JPS51124801A/ja active Pending
- 1976-04-16 FR FR7611308A patent/FR2308808A1/fr active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0254867A2 (fr) * | 1986-08-01 | 1988-02-03 | MAN Nutzfahrzeuge Aktiengesellschaft | Dispositif pour changer avec peu de perte le débit d'une pompe à débit constant |
EP0254867A3 (en) * | 1986-08-01 | 1990-02-28 | Man Nutzfahrzeuge Ag | Device for changing with little loss the flow rate of a constant feed pump |
FR2609309A1 (fr) * | 1987-01-05 | 1988-07-08 | Lebozec & Gautier | Dispositif de controle du fonctionnement d'une pompe |
FR2766525A1 (fr) * | 1997-12-02 | 1999-01-29 | Poclain Hydraulics Sa | Circuit d'alimentation en fluide d'un recepteur equipe de moyens pour soumettre ce recepteur a une loi de pression |
Also Published As
Publication number | Publication date |
---|---|
FR2308808B3 (fr) | 1979-01-12 |
JPS51124801A (en) | 1976-10-30 |
US3985472A (en) | 1976-10-12 |
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