WO2002038990A3 - Vorgesteuertes druck-einspeiseventil - Google Patents

Vorgesteuertes druck-einspeiseventil Download PDF

Info

Publication number
WO2002038990A3
WO2002038990A3 PCT/DE2001/003699 DE0103699W WO0238990A3 WO 2002038990 A3 WO2002038990 A3 WO 2002038990A3 DE 0103699 W DE0103699 W DE 0103699W WO 0238990 A3 WO0238990 A3 WO 0238990A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure supply
supply valve
pilot
operated pressure
piston
Prior art date
Application number
PCT/DE2001/003699
Other languages
English (en)
French (fr)
Other versions
WO2002038990A2 (de
Inventor
Karl Krug-Kussius
Original Assignee
Bosch Rexroth Ag
Karl Krug-Kussius
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
Priority claimed from DE10145975A external-priority patent/DE10145975A1/de
Application filed by Bosch Rexroth Ag, Karl Krug-Kussius filed Critical Bosch Rexroth Ag
Priority to EP01993783A priority Critical patent/EP1332305A2/de
Publication of WO2002038990A2 publication Critical patent/WO2002038990A2/de
Publication of WO2002038990A3 publication Critical patent/WO2002038990A3/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main 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
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/047—Preventing foaming, churning or cavitation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4043—Control of a bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4139—Replenishing or scavenging pumps, e.g. auxiliary charge pumps

Abstract

Offenbart ist ein vorgesteuertes Druck-Einspeiseventil, bei dem ein Kolben (10) einer mit Schiebesitz ausgeführten Hauptstufe mit einer Flächendifferenz ausgeführt ist. Die Nachsaugfunktion des Druck-Einspeiseventils wird über einen Nachsaugring (26) realisiert, der durch geeignete Wahl des Innenspiels und des Dichtposition gegen eine stirnseitige Dichtfläche (32) und an die Umfangfläche des Kolbens der Hauptstufe anpreßbar ist, so daß die Leckage verringert ist.
PCT/DE2001/003699 2000-11-10 2001-09-27 Vorgesteuertes druck-einspeiseventil WO2002038990A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01993783A EP1332305A2 (de) 2000-11-10 2001-09-27 Vorgesteuertes druck-einspeiseventil

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10055814.3 2000-11-10
DE10055814 2000-11-10
DE10145975.0 2001-09-18
DE10145975A DE10145975A1 (de) 2000-11-10 2001-09-18 Vorgesteuertes Druck-Einspeiseventil

Publications (2)

Publication Number Publication Date
WO2002038990A2 WO2002038990A2 (de) 2002-05-16
WO2002038990A3 true WO2002038990A3 (de) 2003-02-20

Family

ID=26007623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003699 WO2002038990A2 (de) 2000-11-10 2001-09-27 Vorgesteuertes druck-einspeiseventil

Country Status (2)

Country Link
EP (1) EP1332305A2 (de)
WO (1) WO2002038990A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345712A1 (de) * 2003-10-01 2005-04-21 Bosch Rexroth Ag Druck-Einspeiseventil
CN108930681B (zh) * 2018-08-21 2020-09-29 德维阀门铸造（苏州）股份有限公司 一种分段控制的平衡阀
US20230243325A1 (en) * 2022-02-01 2023-08-03 Sun Hydraulics, Llc Pressure Relief Valve with a Reverse Free Flow Configuration Integrated Therewith

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548231A (en) * 1978-07-11 1985-10-22 Schwede Franz Josef Pilot-operated pressure-limiting valve with a feeding function
EP0638746A1 (de) * 1993-08-02 1995-02-15 Hydrolux S.A.R.L. Vorsteuerstufe für Druckbegrenzungsventile
DE19524900A1 (de) * 1995-07-08 1997-01-16 Rexroth Mannesmann Gmbh Vorgesteuertes Druckbegrenzungsventil
EP0908653A1 (de) * 1997-10-07 1999-04-14 Mannesmann Rexroth AG Vorgesteuertes Druckbegrenzungsventil
DE19833489A1 (de) * 1998-07-24 2000-01-27 Mannesmann Rexroth Ag Hydraulische Schaltung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734020A1 (de) 1997-08-06 1999-02-11 Mannesmann Rexroth Ag Vorgesteuertes Druckbegrenzungsventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548231A (en) * 1978-07-11 1985-10-22 Schwede Franz Josef Pilot-operated pressure-limiting valve with a feeding function
EP0638746A1 (de) * 1993-08-02 1995-02-15 Hydrolux S.A.R.L. Vorsteuerstufe für Druckbegrenzungsventile
DE19524900A1 (de) * 1995-07-08 1997-01-16 Rexroth Mannesmann Gmbh Vorgesteuertes Druckbegrenzungsventil
EP0908653A1 (de) * 1997-10-07 1999-04-14 Mannesmann Rexroth AG Vorgesteuertes Druckbegrenzungsventil
DE19833489A1 (de) * 1998-07-24 2000-01-27 Mannesmann Rexroth Ag Hydraulische Schaltung

Also Published As

Publication number Publication date
WO2002038990A2 (de) 2002-05-16
EP1332305A2 (de) 2003-08-06

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