EP1128074A3 - Fluid operated actuator - Google Patents

Fluid operated actuator Download PDF

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Publication number
EP1128074A3
EP1128074A3 EP00890380A EP00890380A EP1128074A3 EP 1128074 A3 EP1128074 A3 EP 1128074A3 EP 00890380 A EP00890380 A EP 00890380A EP 00890380 A EP00890380 A EP 00890380A EP 1128074 A3 EP1128074 A3 EP 1128074A3
Authority
EP
European Patent Office
Prior art keywords
piston rod
piston
actuator
end pieces
fluid
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Withdrawn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
EP00890380A
Other languages
German (de)
French (fr)
Other versions
EP1128074A2 (en
Inventor
Gerhard Huber
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.)
Hoerbiger Hydraulik GmbH
Original Assignee
Hoerbiger Hydraulik 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 Hoerbiger Hydraulik GmbH filed Critical Hoerbiger Hydraulik GmbH
Publication of EP1128074A2 publication Critical patent/EP1128074A2/en
Publication of EP1128074A3 publication Critical patent/EP1128074A3/en
Withdrawn legal-status Critical Current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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means

Abstract

Ein fluidbetätigter Aktuator, insbesonders hydraulischer Arbeitszylinder, besteht aus einem hohlen Zylinderrohr (1), zwei Endstücken (5, 6), einem im Zylinderrohr durch die Wirkung eines Arbeitsfluids verschiebbaren Kolben (4) und zumindest einer mit dem Kolben verbundenen, durch eines der Endstücke abgedichtet herausgeführten Kolbenstange (7), und zumindest einem Anschluß (2) zur Einbringung des Arbeitsfluids in einen zwischen zumindest einem der Endstücke und dem Kolben gebildeten Arbeitsraum des Aktuators, wobei gegenüber der ersten Kolbenstange (7) eine zweite Kolbenstange (9) mit dem Kolben (4) verbunden ist, welche zweite Kolbenstange (9) durch das zweite Endstück (6) abgedichtet hindurchgeführt und mit einem Wegaufnehmer (15) gekoppelt ist, der an dem Ende des Aktuators vorgesehen ist, das der ersten Kolbenstange (7) gegenüber liegt. Um die Ermittlung der Stellung der Kolbenstange einfach und sicher und unter Einhaltung einer sehr kompakten und dennoch mechanisch robusten Bauweise der gesamten Anordnung bewerkstelligen zu können, so dass der Aktuator insbesondere zum Einsatz in Kraftfahrzeugen geeignet ist, ist ein starres Verbindungsstück (1b) vom zweiten Endstück (6) bis zu einem zur Ankopplung des Aktuators an ein beliebiges weiteres Bauteil ausgelegten Bodenelement (10) vorgesehen und der Wegaufnehmer (15) an dieser starren Verbindung (1b) montiert.

Figure 00000001
A fluid-operated actuator, in particular a hydraulic working cylinder, consists of a hollow cylinder tube (1), two end pieces (5, 6), a piston (4) displaceable in the cylinder tube by the action of a working fluid and at least one connected to the piston by one of the end pieces Piston rod (7) guided out in a sealed manner, and at least one connection (2) for introducing the working fluid into a working space of the actuator formed between at least one of the end pieces and the piston, with a second piston rod (9) with the piston opposite the first piston rod (7) (4), which second piston rod (9) is passed through the second end piece (6) in a sealed manner and is coupled to a displacement transducer (15) which is provided at the end of the actuator which lies opposite the first piston rod (7). In order to be able to determine the position of the piston rod simply and safely and in compliance with a very compact, yet mechanically robust design of the entire arrangement, so that the actuator is particularly suitable for use in motor vehicles, there is a rigid connecting piece (1b) from the second end piece (6) up to a base element (10) designed to couple the actuator to any other component and the displacement sensor (15) is mounted on this rigid connection (1b).
Figure 00000001
EP00890380A 2000-01-21 2000-12-20 Fluid operated actuator Withdrawn EP1128074A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT902000A AT408476B (en) 2000-01-21 2000-01-21 FLUID ACTUATED ACTUATOR
AT90002000 2000-01-21

Publications (2)

Publication Number Publication Date
EP1128074A2 EP1128074A2 (en) 2001-08-29
EP1128074A3 true EP1128074A3 (en) 2003-09-03

Family

ID=3610493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00890380A Withdrawn EP1128074A3 (en) 2000-01-21 2000-12-20 Fluid operated actuator

Country Status (2)

Country Link
EP (1) EP1128074A3 (en)
AT (1) AT408476B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4147181B2 (en) * 2001-06-01 2008-09-10 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト System for opening and closing a foldable top or movable vehicle roof in a cabriolet vehicle
DE102019104768A1 (en) * 2019-02-26 2020-08-27 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Device for detecting the stroke height of a piston rod within a cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121504A (en) * 1977-01-21 1978-10-24 Inovec, Inc. Cylinder positioning systems
US4181276A (en) * 1977-08-10 1980-01-01 Fuji Jukogyo Kabushiki Kaisha Safety device in aircraft high-lift device
US4987822A (en) * 1988-08-18 1991-01-29 Festo Kg Linear actuator
US5065663A (en) * 1989-12-18 1991-11-19 Siemens Aktiengesellschaft Electropneumatic or electrohydraulic linear drive mechanism
US5308220A (en) * 1991-08-30 1994-05-03 Karl Schaeff Gmbh & Co., Maschinenfabrik Scoop-and-dump jack for shovel-loader
EP0922633A2 (en) * 1997-12-12 1999-06-16 The Boeing Company Method and apparatus for detecting skew and asymmetry of an airplane flap

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121504A (en) * 1977-01-21 1978-10-24 Inovec, Inc. Cylinder positioning systems
US4181276A (en) * 1977-08-10 1980-01-01 Fuji Jukogyo Kabushiki Kaisha Safety device in aircraft high-lift device
US4987822A (en) * 1988-08-18 1991-01-29 Festo Kg Linear actuator
US5065663A (en) * 1989-12-18 1991-11-19 Siemens Aktiengesellschaft Electropneumatic or electrohydraulic linear drive mechanism
US5308220A (en) * 1991-08-30 1994-05-03 Karl Schaeff Gmbh & Co., Maschinenfabrik Scoop-and-dump jack for shovel-loader
EP0922633A2 (en) * 1997-12-12 1999-06-16 The Boeing Company Method and apparatus for detecting skew and asymmetry of an airplane flap

Also Published As

Publication number Publication date
EP1128074A2 (en) 2001-08-29
ATA902000A (en) 2001-04-15
AT408476B (en) 2001-12-27

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