GB1524600A - Method of and circuit arrangment for the central provision of pressure flow for a hydraulic system - Google Patents

Method of and circuit arrangment for the central provision of pressure flow for a hydraulic system

Info

Publication number
GB1524600A
GB1524600A GB4787276A GB4787276A GB1524600A GB 1524600 A GB1524600 A GB 1524600A GB 4787276 A GB4787276 A GB 4787276A GB 4787276 A GB4787276 A GB 4787276A GB 1524600 A GB1524600 A GB 1524600A
Authority
GB
United Kingdom
Prior art keywords
accumulators
pumps
demands
demand
hydraulic 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.)
Expired
Application number
GB4787276A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Werkzeugmaschinenkombinat 7 Oktober VEB
Original Assignee
Werkzeugmaschinenkombinat 7 Oktober VEB
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.)
Filing date
Publication date
Application filed by Werkzeugmaschinenkombinat 7 Oktober VEB filed Critical Werkzeugmaschinenkombinat 7 Oktober VEB
Publication of GB1524600A publication Critical patent/GB1524600A/en
Expired legal-status Critical Current

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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
    • G05D16/2073—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source with a plurality of pressure sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1524600 Hydraulic control circuits WERKZEUGMASCHINENKOMBINAT "7 OKTOBER" BERLIN 17 Nov 1976 [17 Nov 1975] 47872/76 Heading F1P In the circuit shown, Fig. 1, variable delivery pumps 2, 3 and a constant delivery pump 1 supply a circuit which includes hydraulic accumulators 11, 12, 13, and use complexes 14, 15-n, which have randomly varying demands. The pumps and accumulators are designed for the maximum instantaneous demand, and the mean demand of each complex is converted into a proportional demand magnitude and fed to stores Sp1, Sp2, - Spn. The simultaneously existing demands are summed by a device 24 and used to control pumps 2, 3. All demands deviating from the mean are lowered or supplemented by the accumulators.
GB4787276A 1975-11-17 1976-11-17 Method of and circuit arrangment for the central provision of pressure flow for a hydraulic system Expired GB1524600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD18948475A DD122272A1 (en) 1975-11-17 1975-11-17

Publications (1)

Publication Number Publication Date
GB1524600A true GB1524600A (en) 1978-09-13

Family

ID=5502400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4787276A Expired GB1524600A (en) 1975-11-17 1976-11-17 Method of and circuit arrangment for the central provision of pressure flow for a hydraulic system

Country Status (5)

Country Link
CS (1) CS209645B1 (en)
DD (1) DD122272A1 (en)
DE (1) DE2650571A1 (en)
FR (1) FR2331699A1 (en)
GB (1) GB1524600A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158884A (en) * 1984-05-15 1985-11-20 Robert James Siddall Hydraulic drive system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158884A (en) * 1984-05-15 1985-11-20 Robert James Siddall Hydraulic drive system

Also Published As

Publication number Publication date
FR2331699A1 (en) 1977-06-10
DD122272A1 (en) 1976-09-20
FR2331699B3 (en) 1979-07-27
DE2650571A1 (en) 1977-05-26
CS209645B1 (en) 1981-12-31

Similar Documents

Publication Publication Date Title
ES445669A1 (en) Device for regulating perfusion flowrate
ES413538A1 (en) Variable pressure hydraulic system
GB1330405A (en) Power output regulator means for pumps
GB1335536A (en) Apparatus for regulating the total power consumption of at least two pumps
GB1450874A (en) Hydraulic system
GB1361591A (en) Pumps
ES478482A1 (en) Standby supply system for delivering pressure fluid to a user component
GB1524600A (en) Method of and circuit arrangment for the central provision of pressure flow for a hydraulic system
DE3573453D1 (en) Anti-saturation system for hydraulic control circuits for working members of earth-moving machines
GB1393289A (en) System for supplying a pumped liquid at graduated flow rates
GB1489438A (en) Device for feeding two circuit systems with pressurised fluid
JPS53134175A (en) Fluid pressure control valve for two brake systems
ES408871A1 (en) Hydraulic system with flow control means to control pressure distribution between a primary and a secondary hydraulic circuit
JPS51130775A (en) Pressure fluid controlling system
GB1375840A (en)
JPS5246277A (en) Fluid system
GB1508643A (en) Hydrostatic transmission control system
GB1266808A (en)
JPS5298817A (en) Secondary air control device
FR2334050A1 (en) Multiple bearing rotating shaft - has self:aligning bearings which are controlled by pressurised hydraulic fluid
GB1296058A (en)
SE305277B (en)
GB1418266A (en) Pump unloading circuit
ES473673A1 (en) Control valve for use with variable displacement piston pump
JPS5339501A (en) Hydraulic pressure circuit to maintain delivery of hydraulic pressure pump constant

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee