BE794115A - Dispositif de valve sommatrice - Google Patents

Dispositif de valve sommatrice

Info

Publication number
BE794115A
BE794115A BE794115DA BE794115A BE 794115 A BE794115 A BE 794115A BE 794115D A BE794115D A BE 794115DA BE 794115 A BE794115 A BE 794115A
Authority
BE
Belgium
Prior art keywords
valve device
summer valve
summer
valve
Prior art date
Application number
Other languages
English (en)
Inventor
W F Busbey
D L Hopkins
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date 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 date listed.)
Publication date
Publication of BE794115A publication Critical patent/BE794115A/fr

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
    • F04B49/002—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
    • F04B49/007—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
BE794115D 1971-03-24 Dispositif de valve sommatrice BE794115A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12773871A 1971-03-24 1971-03-24

Publications (1)

Publication Number Publication Date
BE794115A true BE794115A (fr) 1973-05-16

Family

ID=22431685

Family Applications (1)

Application Number Title Priority Date Filing Date
BE794115D BE794115A (fr) 1971-03-24 Dispositif de valve sommatrice

Country Status (2)

Country Link
US (1) US3732036A (fr)
BE (1) BE794115A (fr)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861832A (en) * 1972-08-04 1975-01-21 Poclain Sa Pump power governor
DE2331617A1 (de) * 1973-06-22 1975-01-16 Bosch Gmbh Robert Regeleinrichtung fuer hydropumpen
FR2247112A5 (fr) * 1973-10-03 1975-05-02 Poclain Sa
USRE30226E (en) * 1974-05-20 1980-03-11 Sundstrand Corporation Torque limiting control
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
US3963378A (en) * 1975-06-04 1976-06-15 Caterpillar Tractor Co. Part throttle control -- pump override
US4017219A (en) * 1975-12-22 1977-04-12 Abex Corporation Control system for variable displacement pumps
US4029439A (en) * 1975-12-22 1977-06-14 Abex Corporation Control system for variable displacement pumps
US4008004A (en) * 1975-12-22 1977-02-15 Abex Corporation Control system for variable displacement pumps
DE2603563C2 (de) * 1976-01-30 1986-02-20 Linde Ag, 6200 Wiesbaden Steuereinrichtung für ein aus mindestens zwei Pumpen bestehendes Pumpen-Aggregat
US3987622A (en) * 1976-02-02 1976-10-26 Caterpillar Tractor Co. Load controlled fluid system having parallel work elements
US4017218A (en) * 1976-03-15 1977-04-12 Caterpillar Tractor Co. Dual-speed setting underspeed system
US4065228A (en) * 1977-02-24 1977-12-27 Caterpillar Tractor Co. Hydraulic control for variable displacement pumps
CA1104033A (fr) * 1977-02-24 1981-06-30 Commercial Shearing, Inc. Dispositif de commande a compensation de pression et de debit, a couple constant et element de detection de viscosite
US4080979A (en) * 1977-03-22 1978-03-28 Caterpillar Tractor Co. Combined summing and underspeed valve
DE2813486C2 (de) * 1977-03-31 1986-06-26 Kabushiki Kaisha Komatsu Seisakusho, Tokio/Tokyo Steuervorrichtung für Hydraulikpumpen
US4196588A (en) * 1978-05-01 1980-04-08 Caterpillar Tractor Co. Margin valve
FR2424784A1 (fr) * 1978-05-02 1979-11-30 Avyac Sa Mandrin pour le serrage de precision d'outils tels que des forets
JPS5543246A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
JPS5543245A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
JPS56139316A (en) * 1980-01-07 1981-10-30 Komatsu Ltd Power loss reduction controller for oil-pressure type construction machine
JPS57501395A (fr) * 1980-09-12 1982-08-05
JPS57501394A (fr) * 1980-09-12 1982-08-05
JPS57197336A (en) * 1981-05-29 1982-12-03 Komatsu Ltd Oil-pressure circuit for turning excavator
US4498847A (en) * 1982-06-29 1985-02-12 Kabushiki Kaisha Komatsu Seisakusho Control system for variable displacement hydraulic pumps
US4600364A (en) * 1983-06-20 1986-07-15 Kabushiki Kaisha Komatsu Seisakusho Fluid operated pump displacement control system
DE3340332C2 (de) * 1983-11-08 1988-11-10 Hydromatik GmbH, 7915 Elchingen Leistungs-Regelvorrichtung für einen hydrostatischen Antrieb mit Fördermengeneinstellung
US4613286A (en) * 1984-12-31 1986-09-23 Kabushiki Kaisha Komatsu Seisakusho Constant torque control system for a variable displacement pump or pumps
US4739616A (en) * 1985-12-13 1988-04-26 Sundstrand Corporation Summing pressure compensation control
US6206652B1 (en) 1998-08-25 2001-03-27 Copeland Corporation Compressor capacity modulation
US6109030A (en) * 1998-02-13 2000-08-29 Sauer Inc. Apparatus and method for ganging multiple open circuit pumps
US6216456B1 (en) 1999-11-15 2001-04-17 Caterpillar Inc. Load sensing hydraulic control system for variable displacement pump
US7674095B2 (en) * 2000-12-12 2010-03-09 Borgwarner Inc. Variable displacement vane pump with variable target regulator
US8157538B2 (en) * 2007-07-23 2012-04-17 Emerson Climate Technologies, Inc. Capacity modulation system for compressor and method
CN102292545B (zh) 2009-01-27 2014-10-08 艾默生环境优化技术有限公司 压缩机设备和使压缩机卸荷的方法
US8935009B2 (en) * 2011-05-06 2015-01-13 Caterpillar Inc. Method and apparatus for controlling multiple variable displacement hydraulic pumps
US10378533B2 (en) 2011-12-06 2019-08-13 Bitzer Us, Inc. Control for compressor unloading system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441779A (en) * 1945-12-21 1948-05-18 Bendix Aviat Corp Supercharger regulator and surge control
US2629982A (en) * 1947-01-23 1953-03-03 Rolls Royce Fuel system for gas-turbine engines
US2618222A (en) * 1947-05-12 1952-11-18 Rolls Royce Fuel system for gas-turbine engines
US2936588A (en) * 1958-01-20 1960-05-17 Deere & Co Hydraulic pump and motor apparatus with load responsive pump regulating means
US3093081A (en) * 1959-01-29 1963-06-11 New York Air Brake Co Pumping device
DE1528476A1 (de) * 1966-03-10 1969-08-07 Linde Ag Steuereinrichtung fuer mehrere Pumpen
DE1922269A1 (de) * 1969-04-29 1970-11-12 Bellows Valvair Kaemper Gmbh Summenleistungsregler

Also Published As

Publication number Publication date
US3732036A (en) 1973-05-08

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