EP0006045A1 - Steuervorrichtung für einen hydraulischen Kreislauf und autonomer Stellmotor, in dem dieser Kreislauf integriert ist - Google Patents
Steuervorrichtung für einen hydraulischen Kreislauf und autonomer Stellmotor, in dem dieser Kreislauf integriert ist Download PDFInfo
- Publication number
- EP0006045A1 EP0006045A1 EP79400311A EP79400311A EP0006045A1 EP 0006045 A1 EP0006045 A1 EP 0006045A1 EP 79400311 A EP79400311 A EP 79400311A EP 79400311 A EP79400311 A EP 79400311A EP 0006045 A1 EP0006045 A1 EP 0006045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- base
- pump
- insert
- 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.)
- Granted
Links
Images
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
- F15B15/202—Externally-operated valves mounted in or on the actuator
-
- 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
- F15B15/18—Combined units comprising both motor and pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2544—Supply and exhaust type
- Y10T137/2554—Reversing or 4-way valve systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2605—Pressure responsive
- Y10T137/2617—Bypass or relief valve biased open
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2605—Pressure responsive
- Y10T137/2635—Pilot valve operated
Definitions
- the present invention relates to fluid control devices and in particular those used to control so-called “autonomous" jacks, that is to say double acting linear jacks equipped with their own pumping group constituted by a motor and a pump.
- such equipment comprises, in addition to the motor and the pump, a control unit which is housed in a tank and whose access is therefore difficult, which in particular does not allow adjustments to be made. when the device is in use.
- certain components are presented independently, in the form of "cartridges" and are incorporated into the circuit while being accessible from the outside. These are, however, components fulfilling only one function so that, whatever the configuration, the result is an assembly which is bulky and of a relatively high cost price.
- a piloted balancing valve and a non-return valve are combined in the same sub-assembly, but besides such a balancing valve offers well-known drawbacks, and in particular not allowing a speed control, there is no such sub-assembly to control the nominal pressure in the circuit.
- the object of this invention is therefore to provide an integrated control device for a fluid circuit, which fulfills several functions, which is compact, economical and allows cartridge mounting. In addition, such a device must be able to easily make the necessary adjustments.
- the subject of the invention is an integrated control device for a fluid circuit, comprising a body provided with means making it possible to incorporate it into such a circuit and characterized in that it comprises a first pressure relief stage, a second stage constituting a check and braking valve of a fluid flow and means arranged between these two stages, for controlling the check and braking valve from the pressure established by the limiter, these two stages and the control means being arranged coaxially in a housing which passes right through the body.
- such a device is associated with a jack, the chamber delimited between the pressure limiting stage and the pilot piston being connected to a source of pressurized fluid and to a first working chamber of this jack, a second of which chamber is connected to the second retaining and braking stage.
- the invention also relates to an autonomous cylinder comprising a motor, a body forming a reservoir for the fluid, a pump driven by the motor and associated with a control device, and a base on which is fixed a set of cylinder and rod.
- cylinder characterized in that it comprises two integrated control devices as defined above, incorporated into the base and suitably connected, on the one hand, to the pump and, on the other hand, to both cylinder working chambers.
- the pressure relief stage comprises a first insert 10, fixed in the body by screwing, which is hollowed out and has a bottom 11 and a side wall 12.
- a shutter 14 which, in the example chosen, has a conical shape.
- This shutter is held in the closed position by a spring 15 bearing against the bottom 16 of a part 17 which is itself screwed adjustable way in the first insert 10;
- This screw 17 also comprises a skirt 18 received with a tight seal in the insert 10.
- the latter is closed by a plug 19.
- It also has a circumferential groove 20 communicating by one or more passages 21 with its recess internal and with a duct 5 for covering, drilled in the body 1. Seals 22, 23 are provided between this insert and the adjacent wall of the body.
- the body 1 receives a more or less sealed joint with a second insert 30 which can be simply held by the part 10 in abutment against a radial shoulder 3a of the body or be screwed into this body.
- This second insert is also hollowed out and has a bottom 31 and a side wall 32 which guides a piston 33, the bottom of which directly faces the bottom 11 of the part 10.
- the latter comprises on its outer face a crosspiece 24 or any other equivalent means. This interval constitutes a chamber 25.
- the bottom of the second insert is pierced with an orifice 34 and constitutes a seat for a ball 40 of a check valve.
- the orifice 34 also allows the passage of a pusher 35 integral with the piston 33 or bearing against the bottom of the latter is urged upward looking towards the drawing by a spring 36 itself bearing against the bottom 31 of the part 30.
- the internal volume of the latter communicates with the volume delimited by the adjacent part of the body by at least one orifice 37.
- This part of the body is also also connected to the cover by a conduit 6.
- the end of the pusher 35 adjacent to the check valve 40 has a profile of variable section so as to be able to delimit with the bottom of the part 30 a passage whose free section varies as a function of the axial position of the pusher; the latter may for this purpose have any suitable shape and comprise for example oblique slots 38.
- a lining 39 is moreover provided between the bottom 31 and a radial shoulder 3 b of the body 1.
- the body delimits a stepped bore of smaller cross section comprising in an intermediate part a radial shoulder 4 a on which is supported a spring 41 which acts on the ball 40 to apply it against its seat.
- the chamber delimited by the body between this shoulder and the second insert is connected to a conduit 7 for the return of fluid.
- an abutment finger 42 which determines the displacement stroke of the check valve 40 under the action of the pusher 35, the position of this abutment being determined by an adjustment screw 43 comprising a seal. sealing 44.
- the lower part (in the drawing) of the bore formed in the body is also closed by a tight plug 45.
- the chamber 25 is connected by a conduit 8, on the one hand, to a source of pressurized fluid (pump 50 in FIG. 2) and, on the other hand, by means of a non-return valve 51 to a working chamber 52 of a jack 53.
- the duct 7 is assumed to be connected to the second chamber 54 of the jack and therefore receives fluid from this second chamber.
- the ducts 5 and 6 as well as a duct 55 for suction of the po-npe, associated with two non-return valves 56, 57 are connected to a fluid reservoir 58.
- the pump 50 has two directions of rotation and it can be seen that the diagram can be completed to achieve a double-acting control of the jack 53, by a second equivalent circuit to that shown and ensuring the supply of the chamber 54 (from the conduit 59) and the braking of the fluid coming from the chamber 52.
- the part 30 being blocked in the body 1, and the spider 24 or equivalent means having a radial size such that it does not interfere with this part 30, it is possible, by screwing the part 10 in the body, positively hold the ball 40 away from its seat, which can be particularly advantageous, for example to obtain free movement of the associated jack.
- a jack called autonomous that is to say comprising a motor and a pump incorporated, comprising two control devices according to the invention arranged in the same body which is here constituted by a base 100.
- These two devices are designated by the references 101 and 102 and we see on the drawing only the plugs which correspond to the plug 19 in FIG. 1.
- this base are also provided two housings 103, 104 for pins of axis Y-Y perpendicular to the axis Z-Z of the jack.
- the latter comprises an electric motor 105, a pump 106 associated with a block of valves 107 which corresponds to the valves 56, 57 in FIG. 2.
- This pump is surrounded by a cylindrical body 108 and the assembly of the motor, the pump and the body 108 is fixed to the base 100 by means of tie rods 109 or other equivalent fixing members.
- a drive link is also provided between the output shaft 110 of the motor and the pump.
- a cylinder assembly proper constituted by a cylinder 111 in which is received a piston 112 secured to a rod 113, the piston and the cylinder defining two chambers 114 and 115.
- the cylinder 111 is received in a bore 116 of an axial extension 117 of the base. It is also received in a bore 118 of a flange 119 which carries a ring 120 for guiding the rod 113.
- This assembly is completed by a cylindrical body 121 which is made integral, on the one hand, with the extension 117 of the base and, on the other hand, of the flange 119 by means of two elastic rods 122, 123 received in circumferential grooves of these different parts.
- the suction of the pump takes place in the part of the reservoir delimited by the body 108, for example, by conduits 127, 128 converging at a point 129 which is as close as possible to the point of intersection between the two axes YY and ZZ.
- This ensures good circulation of the fluid, improving its cooling, and a correct supply of the pump whatever the variations in position of the jack, thus making the presence of compensators unnecessary in the majority of cases.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Braking Arrangements (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Regulating Braking Force (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT79400311T ATE388T1 (de) | 1978-06-01 | 1979-05-17 | Steuervorrichtung fuer einen hydraulischen kreislauf und autonomer stellmotor, in dem dieser kreislauf integriert ist. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7816390A FR2427499A1 (fr) | 1978-06-01 | 1978-06-01 | Dispositif de commande integre pour circuit de fluide, et ses applications |
FR7816390 | 1978-06-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0006045A1 true EP0006045A1 (de) | 1979-12-12 |
EP0006045B1 EP0006045B1 (de) | 1981-11-11 |
Family
ID=9208947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79400311A Expired EP0006045B1 (de) | 1978-06-01 | 1979-05-17 | Steuervorrichtung für einen hydraulischen Kreislauf und autonomer Stellmotor, in dem dieser Kreislauf integriert ist |
Country Status (7)
Country | Link |
---|---|
US (1) | US4240255A (de) |
EP (1) | EP0006045B1 (de) |
AT (1) | ATE388T1 (de) |
CA (1) | CA1132440A (de) |
DE (1) | DE2961303D1 (de) |
ES (1) | ES481146A1 (de) |
FR (1) | FR2427499A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3607419C1 (en) * | 1986-03-06 | 1987-01-15 | Detlef Koeppen | Pressure-medium-operated cylinder/pump unit |
DE3623117A1 (de) * | 1986-07-09 | 1988-02-04 | Detlef Koeppen | Druckmittelbetriebene zylinder- pumpen- baueinheit |
FR2671144A1 (fr) * | 1990-12-28 | 1992-07-03 | Faivre Duboz Denis | Dispositif de commande d'un verin autonome. |
US5235896A (en) * | 1991-03-20 | 1993-08-17 | Hoerbiger Fluidtechnik Gmbh | Hydraulic cylinder/piston mechanism |
US20230124513A1 (en) * | 2020-12-23 | 2023-04-20 | Ican Company Ltd. | Electro-hydraulic actuator |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2911891C2 (de) * | 1979-03-26 | 1983-10-13 | Mannesmann Rexroth GmbH, 8770 Lohr | Vorrichtung zum Steuern eines Hydromotors |
US4316504A (en) * | 1980-02-11 | 1982-02-23 | Bj-Hughes Inc. | Check/relief valve for an inflatable packer system |
DE3217527C2 (de) * | 1982-05-10 | 1986-07-24 | Mannesmann Rexroth GmbH, 8770 Lohr | Steuereinrichtung für einen hydraulischen doppeltwirkenden Arbeitszylinder |
DE3231319A1 (de) * | 1982-08-23 | 1984-02-23 | Elektro-Mechanik Gmbh, 5963 Wenden | Elektrohydraulische verstellvorrichtung |
GB8405177D0 (en) * | 1984-02-28 | 1984-04-04 | Powell Duffryn Eng Ltd | Hydraulic fluid supply systems |
US4671063A (en) * | 1985-05-29 | 1987-06-09 | Midwestern Reliable Equipment, Inc. | Hydraulic intensifier |
US5355675A (en) * | 1993-08-31 | 1994-10-18 | Western Atlas International, Inc. | Stabilized speed-control system for a hydrostatic transmission |
US6098647A (en) * | 1996-02-28 | 2000-08-08 | Beringer-Hydraulik Ag | Load-holding brake valve |
DE69718659T2 (de) | 1996-10-22 | 2003-05-22 | Boeing Co | Flugzeug mit ungepfeiltem schlitzflügel für den reiseflug |
GB2380524B (en) * | 1998-06-24 | 2003-06-11 | Luk Fahrzeug Hydraulik | Hydraulic delivery device |
DE19927400A1 (de) * | 1998-06-24 | 1999-12-30 | Luk Fahrzeug Hydraulik | Hydraulische Fördereinrichtung |
ITRE20020002A1 (it) * | 2002-01-11 | 2003-07-11 | Bucher Hydraulics S P A | Gruppo valvolare complesso per circuiti idraulici, in particolare perl'unita' di potenza |
US7243881B2 (en) | 2003-06-03 | 2007-07-17 | The Boeing Company | Multi-function trailing edge devices and associated methods |
US7059563B2 (en) * | 2003-06-03 | 2006-06-13 | The Boeing Company | Systems, apparatuses, and methods for moving aircraft control surfaces |
US6799739B1 (en) | 2003-11-24 | 2004-10-05 | The Boeing Company | Aircraft control surface drive system and associated methods |
US7357358B2 (en) | 2004-02-27 | 2008-04-15 | The Boeing Company | Aircraft leading edge device systems and corresponding sizing methods |
US6978971B1 (en) | 2004-06-15 | 2005-12-27 | The Boeing Company | Methods and apparatuses for controlling airflow proximate to engine/airfoil systems |
US7494094B2 (en) | 2004-09-08 | 2009-02-24 | The Boeing Company | Aircraft wing systems for providing differential motion to deployable lift devices |
US7264206B2 (en) | 2004-09-30 | 2007-09-04 | The Boeing Company | Leading edge flap apparatuses and associated methods |
US7322547B2 (en) | 2005-01-31 | 2008-01-29 | The Boeing Company | Aerospace vehicle leading edge slat devices and corresponding methods |
US7338018B2 (en) | 2005-02-04 | 2008-03-04 | The Boeing Company | Systems and methods for controlling aircraft flaps and spoilers |
US7300021B2 (en) | 2005-05-20 | 2007-11-27 | The Boeing Company | Aerospace vehicle fairing systems and associated methods |
US7721999B2 (en) | 2005-05-20 | 2010-05-25 | The Boeing Company | Aerospace vehicle fairing systems and associated methods |
US7367530B2 (en) | 2005-06-21 | 2008-05-06 | The Boeing Company | Aerospace vehicle yaw generating systems and associated methods |
US7611099B2 (en) | 2005-09-07 | 2009-11-03 | The Boeing Company | Seal assemblies for use with drooped spoilers and other control surfaces on aircraft |
US7708231B2 (en) | 2005-11-21 | 2010-05-04 | The Boeing Company | Aircraft trailing edge devices, including devices having forwardly positioned hinge lines, and associated methods |
US7475854B2 (en) | 2005-11-21 | 2009-01-13 | The Boeing Company | Aircraft trailing edge devices, including devices with non-parallel motion paths, and associated methods |
US7578484B2 (en) | 2006-06-14 | 2009-08-25 | The Boeing Company | Link mechanisms for gapped rigid krueger flaps, and associated systems and methods |
US7954769B2 (en) | 2007-12-10 | 2011-06-07 | The Boeing Company | Deployable aerodynamic devices with reduced actuator loads, and related systems and methods |
US7766282B2 (en) | 2007-12-11 | 2010-08-03 | The Boeing Company | Trailing edge device catchers and associated systems and methods |
US8382045B2 (en) | 2009-07-21 | 2013-02-26 | The Boeing Company | Shape-changing control surface |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2449482A (en) * | 1945-03-12 | 1948-09-14 | Weatherhead Co | Reversible pump controlled hydraulic cylinder system |
DE2519973A1 (de) * | 1974-08-23 | 1976-03-11 | Boschung Fa M | In einem mindestens zwei ueberdruckventile aufweisenden block eingebautes entlastungsventil fuer mindestens zwei hydraulisch betaetigbare verbraucher |
DE2445699A1 (de) * | 1974-09-25 | 1976-04-08 | Meier & Freimuth Ohg | Hydraulisch entsperrbares rueckschlagventil |
DE2559029A1 (de) * | 1975-12-29 | 1977-07-07 | Heilmeier & Weinlein | Bremsventil |
DE2707752A1 (de) * | 1977-02-23 | 1978-08-31 | Bosch Gmbh Robert | Gehaeuse zur aufnahme eines druckbegrenzungsventils und eines druckschaltventils |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2032284A (en) * | 1933-05-06 | 1936-02-25 | Wayburn E Johnston | Pressure regulating valve |
US2855945A (en) * | 1953-02-07 | 1958-10-14 | Gratzmuller Jean Louis | Flow-rate responsive switching-valve for hydraulic circuits |
GB822165A (en) * | 1958-09-15 | 1959-10-21 | Electrol Inc | Improvements relating to electro-hydraulic actuators |
US3933167A (en) * | 1974-02-20 | 1976-01-20 | Tomco, Inc. | Pilot operated check valve |
FR2325872A1 (fr) * | 1975-01-09 | 1977-04-22 | Villien Bernard | Electro-vanne a cinq fonctions integrees pour equipement de circuits hydromecaniques a simple effet |
-
1978
- 1978-06-01 FR FR7816390A patent/FR2427499A1/fr active Granted
-
1979
- 1979-05-17 DE DE7979400311T patent/DE2961303D1/de not_active Expired
- 1979-05-17 AT AT79400311T patent/ATE388T1/de not_active IP Right Cessation
- 1979-05-17 EP EP79400311A patent/EP0006045B1/de not_active Expired
- 1979-05-25 CA CA328,412A patent/CA1132440A/en not_active Expired
- 1979-05-31 US US06/044,156 patent/US4240255A/en not_active Expired - Lifetime
- 1979-05-31 ES ES481146A patent/ES481146A1/es not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2449482A (en) * | 1945-03-12 | 1948-09-14 | Weatherhead Co | Reversible pump controlled hydraulic cylinder system |
DE2519973A1 (de) * | 1974-08-23 | 1976-03-11 | Boschung Fa M | In einem mindestens zwei ueberdruckventile aufweisenden block eingebautes entlastungsventil fuer mindestens zwei hydraulisch betaetigbare verbraucher |
DE2445699A1 (de) * | 1974-09-25 | 1976-04-08 | Meier & Freimuth Ohg | Hydraulisch entsperrbares rueckschlagventil |
DE2559029A1 (de) * | 1975-12-29 | 1977-07-07 | Heilmeier & Weinlein | Bremsventil |
DE2707752A1 (de) * | 1977-02-23 | 1978-08-31 | Bosch Gmbh Robert | Gehaeuse zur aufnahme eines druckbegrenzungsventils und eines druckschaltventils |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3607419C1 (en) * | 1986-03-06 | 1987-01-15 | Detlef Koeppen | Pressure-medium-operated cylinder/pump unit |
DE3623117A1 (de) * | 1986-07-09 | 1988-02-04 | Detlef Koeppen | Druckmittelbetriebene zylinder- pumpen- baueinheit |
FR2671144A1 (fr) * | 1990-12-28 | 1992-07-03 | Faivre Duboz Denis | Dispositif de commande d'un verin autonome. |
US5235896A (en) * | 1991-03-20 | 1993-08-17 | Hoerbiger Fluidtechnik Gmbh | Hydraulic cylinder/piston mechanism |
US20230124513A1 (en) * | 2020-12-23 | 2023-04-20 | Ican Company Ltd. | Electro-hydraulic actuator |
US11815108B2 (en) * | 2020-12-23 | 2023-11-14 | Ican Company Ltd. | Electro-hydraulic actuator |
Also Published As
Publication number | Publication date |
---|---|
US4240255A (en) | 1980-12-23 |
ATE388T1 (de) | 1981-11-15 |
DE2961303D1 (en) | 1982-01-14 |
FR2427499B1 (de) | 1981-11-27 |
FR2427499A1 (fr) | 1979-12-28 |
ES481146A1 (es) | 1980-10-01 |
CA1132440A (en) | 1982-09-28 |
EP0006045B1 (de) | 1981-11-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0006045B1 (de) | Steuervorrichtung für einen hydraulischen Kreislauf und autonomer Stellmotor, in dem dieser Kreislauf integriert ist | |
FR2473670A1 (fr) | Soupape de surete equipee d'un frein hydraulique et frein hydraulique susceptible d'etre insere dans une soupape existante | |
EP0455559B1 (de) | Verbrennungsluftzufuhreinrichtung für Gasturbine | |
FR2677409A1 (fr) | Circuit hydraulique d'alimentation d'au moins un moteur hydraulique a pistons "debrayables". | |
EP0446115A1 (de) | Mehrfachzylinder, Versorgungskreis für einen solchen Zylinder und Teleskopausleger als Anwendung dieses Zylinders | |
FR2673684A1 (fr) | Ensemble d'un moteur a fluide sous pression a plusieurs cylindrees et d'un frein associe. | |
FR2723765A1 (fr) | Pompe a debit variable et a controle de la decharge a la bache | |
FR2683882A1 (fr) | Ensemble d'un moteur hydraulique et d'un frein. | |
FR2706538A1 (fr) | Mécanisme à fluide sous pression tel qu'un moteur ou une pompe, réversible, à au moins deux cylindrées de fonctionnement. | |
EP0088017A2 (de) | Hydraulisches Wegeschieberventil | |
FR2767932A1 (fr) | Dispositif de regulation de debit volumique et systeme d'injection comportant un tel dispositif de regulation, notamment pour moteur a combustion interne | |
EP0428192B1 (de) | Stufenloses hydrostatisches Radialkolbengetriebe | |
EP0012043B1 (de) | Hydraulische Servolenkungseinrichtung für Kraftfahrzeuge | |
FR2468771A1 (fr) | Dispositif de commande d'aspiration pour un compresseur | |
FR2628485A2 (fr) | Distributeur hydraulique rotatif pour servo-mecanisme | |
EP3163076A1 (de) | Hydraulische maschine mit zwei schluckvolumina und einem sicherheitsventil | |
EP0306368B1 (de) | Druckwaage für hydraulische proportionale Wegeventile und damit ausgerüstetes hydraulisches Wegeventil | |
EP0514260B1 (de) | Luftzufuhrregeleinrichtung für eine Gasturbine | |
FR2711433A1 (fr) | Régulateur coaxial de débit. | |
FR3080576A1 (fr) | Agencement hydraulique pour une roue directrice d'un vehicule | |
EP0271384A1 (de) | Einrichtung zur Zirkulation eines Schmiermittels in einem Schmierungskreislauf einer Brennkraftmaschine | |
EP0128787B1 (de) | Einzylinder- oder Mehrzylinderradialpumpe | |
FR2497290A1 (fr) | Appareil de pompage a injection de combustible | |
FR2679306A1 (fr) | Element de suspension hydropneumatique telescopique notamment pour vehicule automobile. | |
EP4069960A1 (de) | Teleskopische pleuelstange für eine brennkraftmaschine mit variablem verdichtungsverhältnis |
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 |
Designated state(s): AT BE CH DE GB IT LU NL SE |
|
17P | Request for examination filed | ||
ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19811111 |
|
REF | Corresponds to: |
Ref document number: 388 Country of ref document: AT Date of ref document: 19811115 Kind code of ref document: T |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19820105 |
|
REF | Corresponds to: |
Ref document number: 2961303 Country of ref document: DE Date of ref document: 19820114 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19820531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19830510 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19840411 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19840424 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19840630 Year of fee payment: 6 Ref country code: BE Payment date: 19840630 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19890517 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19890518 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19890531 Ref country code: BE Effective date: 19890531 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19900201 |
|
EUG | Se: european patent has lapsed |
Ref document number: 79400311.1 Effective date: 19900412 |
|
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 |