EP1101949A3 - Device for controlling the hydraulic flow volume of at least one working medium under pressure - Google Patents

Device for controlling the hydraulic flow volume of at least one working medium under pressure Download PDF

Info

Publication number
EP1101949A3
EP1101949A3 EP00116754A EP00116754A EP1101949A3 EP 1101949 A3 EP1101949 A3 EP 1101949A3 EP 00116754 A EP00116754 A EP 00116754A EP 00116754 A EP00116754 A EP 00116754A EP 1101949 A3 EP1101949 A3 EP 1101949A3
Authority
EP
European Patent Office
Prior art keywords
valve body
controlling
main valve
under pressure
working medium
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
Application number
EP00116754A
Other languages
German (de)
French (fr)
Other versions
EP1101949A2 (en
EP1101949B1 (en
Inventor
Werner Schumacher
Joerg Siebert
Holger Lueues
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 EP1101949A2 publication Critical patent/EP1101949A2/en
Publication of EP1101949A3 publication Critical patent/EP1101949A3/en
Application granted granted Critical
Publication of EP1101949B1 publication Critical patent/EP1101949B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B2013/008—Throttling member profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Check Valves (AREA)

Abstract

Die Erfindung geht aus von einer Vorrichtung zur Steuerung eines hydraulischen Volumenstroms (10) zumindest eines belasteten Arbeitsmittels (12) mit zumindest einem Sperrventil, das einen Hauptventilkörper (14) aufweist, der mit einer Hauptventilfeinsteuerung (18) zusammenwirkt, und mit einem von einem Stellelement (20) betätigbaren Vorsteuerventilkörper (22), mit dem der Hauptventilkörper (14) hydraulisch steuerbar ist, wobei ein Vorsteuervolumenstrom (36) stromaufwärts von einem Vorsteuerventilsitz (26) über zumindest einen Drosselquerschnitt einer Drosselstelle (38, 40) geleitet ist.The invention relates to a control device a hydraulic volume flow (10) at least one loaded Work equipment (12) with at least one shut-off valve, which has a main valve body (14) with a Main valve fine control (18) cooperates, and with one by a control element (20) actuable pilot valve body (22) with which the main valve body (14) is hydraulic is controllable, a pilot control flow (36) upstream from a pilot valve seat (26) via at least one Throttle cross section of a throttle point (38, 40) is passed.

Es wird vorgeschlagen, daß wenigstens ein Drosselquerschnitt einer Drosselstelle (38), über den der Vorsteuervolumenstrom (36) geleitet ist, zumindest zu Beginn mit dem Öffnungshub des Hauptventilkörpers (14) zunimmt.

Figure 00000001
It is proposed that at least one throttle cross section of a throttle point (38), through which the pilot control flow (36) is directed, increases at least initially with the opening stroke of the main valve body (14).
Figure 00000001
EP20000116754 1999-11-18 2000-08-03 Device for controlling the hydraulic flow volume of at least one working medium under pressure Expired - Lifetime EP1101949B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19955521 1999-11-18
DE1999155521 DE19955521A1 (en) 1999-11-18 1999-11-18 Device for controlling a hydraulic volume flow of at least one loaded working medium

Publications (3)

Publication Number Publication Date
EP1101949A2 EP1101949A2 (en) 2001-05-23
EP1101949A3 true EP1101949A3 (en) 2004-01-14
EP1101949B1 EP1101949B1 (en) 2006-04-19

Family

ID=7929500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000116754 Expired - Lifetime EP1101949B1 (en) 1999-11-18 2000-08-03 Device for controlling the hydraulic flow volume of at least one working medium under pressure

Country Status (2)

Country Link
EP (1) EP1101949B1 (en)
DE (2) DE19955521A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106838101B (en) * 2017-03-24 2019-03-22 中国北方车辆研究所 Oleo-pneumatic suspension locking-valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746093A (en) * 1986-10-01 1988-05-24 Sulzer Brothers Limited Piloted valve
DE4140604A1 (en) * 1991-12-10 1993-06-17 Bosch Gmbh Robert CONTROL DEVICE FOR THE VOLUME FLOW OF A HYDRAULIC WORKING AGENT
US5328148A (en) * 1990-10-10 1994-07-12 Robert Bosch Gmbh Control device for hydraulic piston/cylinder unit
US5799485A (en) * 1995-06-22 1998-09-01 Robert Bosch Gmbh Electrohydraulic control device for double-acting consumer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746093A (en) * 1986-10-01 1988-05-24 Sulzer Brothers Limited Piloted valve
US5328148A (en) * 1990-10-10 1994-07-12 Robert Bosch Gmbh Control device for hydraulic piston/cylinder unit
DE4140604A1 (en) * 1991-12-10 1993-06-17 Bosch Gmbh Robert CONTROL DEVICE FOR THE VOLUME FLOW OF A HYDRAULIC WORKING AGENT
US5799485A (en) * 1995-06-22 1998-09-01 Robert Bosch Gmbh Electrohydraulic control device for double-acting consumer

Also Published As

Publication number Publication date
DE19955521A1 (en) 2001-05-23
EP1101949A2 (en) 2001-05-23
DE50012599D1 (en) 2006-05-24
EP1101949B1 (en) 2006-04-19

Similar Documents

Publication Publication Date Title
DE589823T1 (en) Safety elevator for drill pipe.
DE3118576A1 (en) CONTROL DEVICE FOR A PUMP
WO2016023569A1 (en) Actuator controller and method for regulating the movement of an actuator
EP0898059A3 (en) Decompression valve engine brake
DE10059192C1 (en) Hydraulic drive device for a vehicle
EP1152155A3 (en) Device for setting the differential pressure in a fluid cylinder
EP1148251A3 (en) Pressure control valve
DE2840687A1 (en) DEVICE FOR CONTROLLING THE FLOW RATE AND LIMITING THE DELIVERY PRESSURE OF AN ADJUSTABLE PUMP.
DE3312510C2 (en) One-way flow control valve
DE4129638C2 (en) Hydraulic seat valve
CH628117A5 (en) Brake-valve device
EP1101949A3 (en) Device for controlling the hydraulic flow volume of at least one working medium under pressure
EP1296056A3 (en) Fuel injector having a hydraulically actuated control valve and hydraulic system using same
EP1253326A3 (en) Pneumatic valve
EP0994003A3 (en) Valve device
DE270025C (en)
DE2728299A1 (en) PRESSURIZED DRIVE
DE3737579C2 (en) Trailer brake valve
EP0402871A3 (en) Control device for variable displacement pump
DE69405743T2 (en) EXHAUST BRAKE
EP0766010A3 (en) Hydraulic operated hand tool
DE2313710A1 (en) GAS RELEASE REGULATOR
DE301944C (en)
DE2557203A1 (en) PRESSURIZED DRIVE
DE10354905A1 (en) Glass fiber reinforced shut-off valve for concrete hose

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040714

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20040825

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50012599

Country of ref document: DE

Date of ref document: 20060524

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060814

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110824

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 50012599

Country of ref document: DE

Effective date: 20120211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120803

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160823

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160825

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161027

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50012599

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170803

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170831