EP1067294A3 - Filterumleitung eines hydraulischen Systems - Google Patents

Filterumleitung eines hydraulischen Systems Download PDF

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Publication number
EP1067294A3
EP1067294A3 EP00113963A EP00113963A EP1067294A3 EP 1067294 A3 EP1067294 A3 EP 1067294A3 EP 00113963 A EP00113963 A EP 00113963A EP 00113963 A EP00113963 A EP 00113963A EP 1067294 A3 EP1067294 A3 EP 1067294A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic fluid
pump
consumers
filter element
temperature
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Withdrawn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
EP00113963A
Other languages
English (en)
French (fr)
Other versions
EP1067294A2 (de
Inventor
Dieter Hildebrand
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1067294A2 publication Critical patent/EP1067294A2/de
Publication of EP1067294A3 publication Critical patent/EP1067294A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F15B21/045—Compensating for variations in viscosity or temperature
    • 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
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Eine Pumpe fördert Druckflüssigkeit über ein Filterelement zu den Verbrauchern. Um bei kalter Druckflüssigkeit mit entsprechend höherer Viskosität das Filterelement zu schützen und zu gewährleisten, daß den Verbrauchern ausreichend Druckflüssigkeit zur Verfügung steht, wird unterhalb einer zuvor definierten Temperatur die Druckflüssigkeit direkt von der Pumpe und oberhalb einer zuvor definierten Temperatur die Druckflüssigkeit über das Filterelement zu den Verbrauchern geleitet. Hierzu wird über ein temperaturabhängiges Element (1) eine Verbindung von der Pumpe (6) zu den Verbrauchern (5) abhängig von der Temperatur geschaffen oder verschlossen. Damit dieser Vorgang unabhängig vom Druck zwischen der Pumpe und dem Filterelement ist, wird ein Schieber (2) beidseitig mit Druck von der Pumpe beaufschlagt.
EP00113963A 1999-07-09 2000-07-01 Filterumleitung eines hydraulischen Systems Withdrawn EP1067294A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19932097 1999-07-09
DE19932097A DE19932097A1 (de) 1999-07-09 1999-07-09 Hydraulisches System zur Filterung von Druckflüssigkeit

Publications (2)

Publication Number Publication Date
EP1067294A2 EP1067294A2 (de) 2001-01-10
EP1067294A3 true EP1067294A3 (de) 2003-06-04

Family

ID=7914246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00113963A Withdrawn EP1067294A3 (de) 1999-07-09 2000-07-01 Filterumleitung eines hydraulischen Systems

Country Status (2)

Country Link
EP (1) EP1067294A3 (de)
DE (1) DE19932097A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672984A (en) * 1952-04-16 1954-03-23 Luber Finer Inc Filter
US2965120A (en) * 1956-10-29 1960-12-20 Gen Motors Corp Pressure control device
US4036433A (en) * 1975-11-06 1977-07-19 Robertshaw Controls Company Thermally operated control device and method of making the same
US4344564A (en) * 1981-02-23 1982-08-17 Gould Inc. Thermal by-pass valve with integral pressure relief
US5516042A (en) * 1994-11-18 1996-05-14 Dana Corporation Thermally activated two-way valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021292A1 (de) * 1989-07-17 1991-01-31 Volkswagen Ag Filter
DE19539759A1 (de) * 1995-10-26 1997-04-30 Zahnradfabrik Friedrichshafen Ölbehälter, insbesondere für hydraulische Lenksysteme von Kraftfahrzeugen
DE29705018U1 (de) * 1996-06-26 1997-05-15 Hydac Technology Gmbh, 66280 Sulzbach Thermo-Bypass-Ventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672984A (en) * 1952-04-16 1954-03-23 Luber Finer Inc Filter
US2965120A (en) * 1956-10-29 1960-12-20 Gen Motors Corp Pressure control device
US4036433A (en) * 1975-11-06 1977-07-19 Robertshaw Controls Company Thermally operated control device and method of making the same
US4344564A (en) * 1981-02-23 1982-08-17 Gould Inc. Thermal by-pass valve with integral pressure relief
US5516042A (en) * 1994-11-18 1996-05-14 Dana Corporation Thermally activated two-way valve

Also Published As

Publication number Publication date
DE19932097A1 (de) 2001-01-11
EP1067294A2 (de) 2001-01-10

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