EP0084800A2 - Installation hydraulique - Google Patents

Installation hydraulique Download PDF

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Publication number
EP0084800A2
EP0084800A2 EP83100191A EP83100191A EP0084800A2 EP 0084800 A2 EP0084800 A2 EP 0084800A2 EP 83100191 A EP83100191 A EP 83100191A EP 83100191 A EP83100191 A EP 83100191A EP 0084800 A2 EP0084800 A2 EP 0084800A2
Authority
EP
European Patent Office
Prior art keywords
pump
turbine
pressure
main
pressure pump
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.)
Withdrawn
Application number
EP83100191A
Other languages
German (de)
English (en)
Other versions
EP0084800A3 (fr
Inventor
Horst Dr. Dipl.-Ing. Hesse
Werner Steprath
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0084800A2 publication Critical patent/EP0084800A2/fr
Publication of EP0084800A3 publication Critical patent/EP0084800A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F15B2211/20592—Combinations of pumps for supplying high and low pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Definitions

  • the invention is based on a hydraulic system according to the preamble of the main claim.
  • a high-pressure circuit for the main consumers and a low-pressure circuit for secondary consumption such as e.g. B. Remote actuation of valves, actuation of clutches etc.
  • the low pressure circuit there is usually a pressure of 10 to 20 bar.
  • Low-pressure circuits can be supplied by a low-pressure pump driven by a motor next to the main pump, by pressure medium from the return line of a main consumer, which is throttled to the required low pressure, or by branching off a secondary flow from the main flow.
  • Such measures are either quite complex or difficult to install, but in any case they are lossy due to throttling or release of pressure medium via a pressure relief valve. This reduces the efficiency of a hydraulic system.
  • the hydraulic system according to the invention with the characterizing features of the main claim has the advantage that the supply device for the low pressure circuit is very simple and the power losses are low.
  • Figure 1 shows a first embodiment in a schematic representation
  • Figure 2 shows a second embodiment of the invention also in a schematic representation.
  • 10 denotes a main pump, which sucks pressure medium from a container 11 and conveys it via a high-pressure line 12 to one or more main consumers 13.
  • the pressure medium flows back from the main consumer via a line 14 to the container 11.
  • a turbine 15, for. B. a small Francis turbine arranged a low pressure pump 16, for. B. drives a gear pump.
  • This sucks pressure medium via a line 17 from the container 11 and promotes it under a low pressure of z. B. 10 to 20 bar via a low pressure line 18 to an auxiliary consumer 19, from where it flows back via a line 20 to the container.
  • the turbine 15 delivers a largely constant torque until it comes to a standstill.
  • the auxiliary circuit is supplied with the quantity of pressure medium actually used.
  • the output pressure of the low-pressure pump 16 driven by it is thus constant, and its delivery flow and speed are adjusted according to the quantity actually used.
  • a pressure relief valve is not required.
  • the turbine requires a pressure drop of 1 to 3 bar depending on the power consumption; this is independent of the pressure level of the main circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Rotary Pumps (AREA)
EP83100191A 1982-01-26 1983-01-12 Installation hydraulique Withdrawn EP0084800A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823202351 DE3202351A1 (de) 1982-01-26 1982-01-26 Hydraulikanlage
DE3202351 1982-01-26

Publications (2)

Publication Number Publication Date
EP0084800A2 true EP0084800A2 (fr) 1983-08-03
EP0084800A3 EP0084800A3 (fr) 1984-07-25

Family

ID=6153906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100191A Withdrawn EP0084800A3 (fr) 1982-01-26 1983-01-12 Installation hydraulique

Country Status (2)

Country Link
EP (1) EP0084800A3 (fr)
DE (1) DE3202351A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570157A1 (fr) * 1984-09-13 1986-03-14 Poclain Hydraulics Sa Circuit d'alimentation en fluide sous pression de deux organes recepteurs
EP0873901A3 (fr) * 1997-04-18 2000-01-12 MANNESMANN Aktiengesellschaft Entraínement pour un appareil de travail mobile
EP2843241A3 (fr) * 2013-08-15 2015-04-29 CLAAS Selbstfahrende Erntemaschinen GmbH Système hydraulique
IT202000002881A1 (it) * 2020-02-13 2021-08-13 Seppi M S P A Sistema per l’azionamento di almeno due utenze mediante un motore idraulico

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206794B (zh) * 2019-06-24 2020-04-14 三一汽车起重机械有限公司 液压扳手及工程车辆

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988888A (en) * 1959-12-21 1961-06-20 Clark Equipment Co Cooling system
FR2355993A1 (fr) * 1976-06-21 1978-01-20 Inst Cercetare Si Proiectare T Refroidisseur pour installations hydrauliques
FR2437512A1 (fr) * 1978-09-28 1980-04-25 Ppm Sa Dispositif d'alimentation en fluide sous pression comprenant un joint tournant

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570157A1 (fr) * 1984-09-13 1986-03-14 Poclain Hydraulics Sa Circuit d'alimentation en fluide sous pression de deux organes recepteurs
EP0176427A1 (fr) * 1984-09-13 1986-04-02 POCLAIN HYDRAULICS Société Anonyme de droit français Circuit d'alimentation en fluide sous pression de deux organes récepteurs
EP0873901A3 (fr) * 1997-04-18 2000-01-12 MANNESMANN Aktiengesellschaft Entraínement pour un appareil de travail mobile
US6122913A (en) * 1997-04-18 2000-09-26 Mannesmann Aktiengesellschaft Drive for a mobile operating device
EP2843241A3 (fr) * 2013-08-15 2015-04-29 CLAAS Selbstfahrende Erntemaschinen GmbH Système hydraulique
IT202000002881A1 (it) * 2020-02-13 2021-08-13 Seppi M S P A Sistema per l’azionamento di almeno due utenze mediante un motore idraulico
ES2858506R1 (es) * 2020-02-13 2021-11-22 Seppi M Spa Sistema para accionar por lo menos dos unidades consumidoras por medio de un motor hidráulico
US11364615B2 (en) 2020-02-13 2022-06-21 Seppi M. Spa System for actuating at least two consumer units by means of a hydraulic motor

Also Published As

Publication number Publication date
DE3202351A1 (de) 1983-07-28
EP0084800A3 (fr) 1984-07-25

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830112

AK Designated contracting states

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18W Application withdrawn

Withdrawal date: 19840818

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STEPRATH, WERNER

Inventor name: HESSE, HORST, DR., DIPL.-ING.