EP0552841A3 - - Google Patents

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Publication number
EP0552841A3
EP0552841A3 EP93200129A EP93200129A EP0552841A3 EP 0552841 A3 EP0552841 A3 EP 0552841A3 EP 93200129 A EP93200129 A EP 93200129A EP 93200129 A EP93200129 A EP 93200129A EP 0552841 A3 EP0552841 A3 EP 0552841A3
Authority
EP
European Patent Office
Prior art keywords
medium
undissolved gas
compressibility
amount
hydraulic
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
EP93200129A
Other languages
English (en)
Other versions
EP0552841A2 (en
EP0552841B1 (en
Inventor
Klaus Leonhard Witt
Willi Schneider
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.)
Sun Test Systems BV
Original Assignee
Sun Electric Systems BV
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 NL9200128A external-priority patent/NL9200128A/nl
Priority claimed from NL9200995A external-priority patent/NL9200995A/nl
Application filed by Sun Electric Systems BV filed Critical Sun Electric Systems BV
Publication of EP0552841A2 publication Critical patent/EP0552841A2/en
Publication of EP0552841A3 publication Critical patent/EP0552841A3/xx
Application granted granted Critical
Publication of EP0552841B1 publication Critical patent/EP0552841B1/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
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring
    • 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
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Accessories For Mixers (AREA)
  • Measuring Fluid Pressure (AREA)
EP93200129A 1992-01-23 1993-01-19 Method and device for detecting undissolved gas in a hydraulic control system Expired - Lifetime EP0552841B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL9200128 1992-01-23
NL9200128A NL9200128A (nl) 1992-01-23 1992-01-23 Werkwijze en inrichting voor het detecteren van niet opgeloste gassen in een hydraulisch systeem.
NL9200995A NL9200995A (nl) 1992-06-05 1992-06-05 Werkwijze en inrichting voor het detecteren van onopgelost gas in een hydraulisch besturingssysteem.
NL9200995 1992-06-05

Publications (3)

Publication Number Publication Date
EP0552841A2 EP0552841A2 (en) 1993-07-28
EP0552841A3 true EP0552841A3 (enrdf_load_stackoverflow) 1994-12-21
EP0552841B1 EP0552841B1 (en) 1999-06-09

Family

ID=26646927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93200129A Expired - Lifetime EP0552841B1 (en) 1992-01-23 1993-01-19 Method and device for detecting undissolved gas in a hydraulic control system

Country Status (4)

Country Link
EP (1) EP0552841B1 (enrdf_load_stackoverflow)
AT (1) ATE181142T1 (enrdf_load_stackoverflow)
DE (1) DE69325190T2 (enrdf_load_stackoverflow)
ES (1) ES2134239T3 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004028C2 (nl) * 1996-09-13 1998-03-16 Sun Electric Systems Bv Werkwijze voor het bepalen van de hoeveelheid onopgelost gas in een hydraulisch systeem.
DE102004038801B4 (de) * 2004-08-10 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zur Erkennung von Gaseinschlüssen in einem zähflüssigen Medium
EP2302270B1 (en) 2009-09-29 2012-09-12 Sun Test Systems B.V. A method for determining a functioning of a gas bleed valve
DE102012221954A1 (de) * 2012-11-30 2014-06-05 Robert Bosch Gmbh Gaserkennungsvorrichtung
DE102013224744B4 (de) * 2013-12-03 2024-04-04 Zf Friedrichshafen Ag Verfahren zum Reduzieren von Luftansammlungen
CN110985462B (zh) * 2019-12-12 2021-08-06 四川凌峰航空液压机械有限公司 排除脉冲试验作动筒及其管路气体的液压系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089206A (en) * 1975-09-27 1978-05-16 Maschinenfabrik Hennecke Gmbh Method and apparatus for measuring the proportion of undissolved gas in a liquid component for the production of foam materials
EP0022394A1 (fr) * 1979-07-05 1981-01-14 AMS, société anonyme Méthode et dispositif de contrôle de dégazage d'un circuit hydraulique
FR2474196A1 (fr) * 1980-01-22 1981-07-24 Armines Cellule pour la determination de la relation, a temperature donnee, entre pression et volumes respectivement liquide et gazeux d'un produit et/ou melange en phases liquide et gazeuse
US4329869A (en) * 1979-07-27 1982-05-18 Kabushiki Kaisha Polyurethan Engineering Apparatus for measuring the amount of air bubbles contained in liquid
DE3233551A1 (de) * 1982-09-10 1984-03-15 Danfoss A/S, 6430 Nordborg Vorrichtung zur erfassung des gasanteils in einem unter druck stehenden fluessigkeitssystem
FR2547051A1 (fr) * 1983-06-06 1984-12-07 Petroles Cie Francaise Appareillage de mesure pour l'etude des relations entre la pression et les volumes liquide et/ou gazeux pour un produit a phases liquide et/ou gazeuse
FR2572530A1 (fr) * 1984-10-26 1986-05-02 Armines Appareillage automatique de mesure de fractions vaporisees de corps purs et/ou melanges et des densites des phases liquide et/ou vapeur avec prelevement d'echantillons de phase vapeur
EP0206119A1 (en) * 1985-06-13 1986-12-30 Shen, Hanshi Petroleum and Chemical Factory Method and apparatus for eliminating cavitation in hydraulic systems
EP0451752A2 (en) * 1990-04-12 1991-10-16 Afros S.P.A. Method and apparatus for testing gas dispersed in a liquid

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089206A (en) * 1975-09-27 1978-05-16 Maschinenfabrik Hennecke Gmbh Method and apparatus for measuring the proportion of undissolved gas in a liquid component for the production of foam materials
EP0022394A1 (fr) * 1979-07-05 1981-01-14 AMS, société anonyme Méthode et dispositif de contrôle de dégazage d'un circuit hydraulique
US4329869A (en) * 1979-07-27 1982-05-18 Kabushiki Kaisha Polyurethan Engineering Apparatus for measuring the amount of air bubbles contained in liquid
FR2474196A1 (fr) * 1980-01-22 1981-07-24 Armines Cellule pour la determination de la relation, a temperature donnee, entre pression et volumes respectivement liquide et gazeux d'un produit et/ou melange en phases liquide et gazeuse
DE3233551A1 (de) * 1982-09-10 1984-03-15 Danfoss A/S, 6430 Nordborg Vorrichtung zur erfassung des gasanteils in einem unter druck stehenden fluessigkeitssystem
FR2547051A1 (fr) * 1983-06-06 1984-12-07 Petroles Cie Francaise Appareillage de mesure pour l'etude des relations entre la pression et les volumes liquide et/ou gazeux pour un produit a phases liquide et/ou gazeuse
FR2572530A1 (fr) * 1984-10-26 1986-05-02 Armines Appareillage automatique de mesure de fractions vaporisees de corps purs et/ou melanges et des densites des phases liquide et/ou vapeur avec prelevement d'echantillons de phase vapeur
EP0206119A1 (en) * 1985-06-13 1986-12-30 Shen, Hanshi Petroleum and Chemical Factory Method and apparatus for eliminating cavitation in hydraulic systems
EP0451752A2 (en) * 1990-04-12 1991-10-16 Afros S.P.A. Method and apparatus for testing gas dispersed in a liquid

Also Published As

Publication number Publication date
ATE181142T1 (de) 1999-06-15
EP0552841A2 (en) 1993-07-28
ES2134239T3 (es) 1999-10-01
EP0552841B1 (en) 1999-06-09
DE69325190D1 (de) 1999-07-15
DE69325190T2 (de) 1999-10-28

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