WO2016012642A1 - Sistema de control de carga variable en un dispositivo hidráulico - Google Patents
Sistema de control de carga variable en un dispositivo hidráulico Download PDFInfo
- Publication number
- WO2016012642A1 WO2016012642A1 PCT/ES2015/070494 ES2015070494W WO2016012642A1 WO 2016012642 A1 WO2016012642 A1 WO 2016012642A1 ES 2015070494 W ES2015070494 W ES 2015070494W WO 2016012642 A1 WO2016012642 A1 WO 2016012642A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic device
- control system
- load control
- tubular head
- annular support
- Prior art date
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Classifications
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
Definitions
- the present invention refers to a variable load control system in a hydraulic device that has the purpose of controlling the development of hydraulic load in at least some moment of its operation
- the system is applicable to hydraulic devices, such as shock absorbers, managing to reduce the problems of abruptness, during a first run that ends in a maximum compressed and also during a second run that ends in a maximum extended, so that abruptness attenuation It is controlled especially at the end of the first and second races of the hydraulic device.
- hydraulic devices such as shock absorbers
- the system of the invention has the purpose of providing damping in the hydraulic device as a function of the length of the shock absorber at all times and also as a function of the linear speed of the shock absorber when it is active, both when moving towards its maximum extension and / or when it moves in the opposite direction towards its maximum compression.
- system of the invention allows a wide and varied range of geometries, arrangements and materials, ensuring its adaptability and configurability to boundary conditions with dimensions in each application case.
- an operation of the hydraulic device has been chosen as a hydraulic understanding stop in a vehicle shock absorber.
- some hydraulic devices such as shock absorbers, comprise two parts assembled together.
- a first part comprising a piston rod assembly
- a second part comprising a housing that includes a tube with sufficient cylindricalness so that a piston rod or piston assembly can slide inside in the presence of a hydraulic fluid.
- This assembly allows to decouple the movement of the solidarity assembly to the tubular housing of the movement of the solidarity assembly to the piston rod assembly, so that the hydraulics filter, partially or totally, the frequencies that are not desired to be transmitted from one assembly to another.
- the maximum stroke of the piston allowed inside the housing is limited. In certain devices these limitations are implemented through mechanical stops:
- these stops are known as compression stops, maximum compresses, etc.
- the relative abruptness of these mechanical stop mechanisms may be undesirable, due to a lack of comfort, excessive noise, deterioration due to repeated use, etc.
- the invention proposes a variable load control system in a hydraulic device, where the hydraulic device comprises a tubular housing inside which a rod is located to which jointly fixes a piston that separates an upper space and a lower space filled with a hydraulic fluid, so that during the mobility of the piston and rod, these two elements move together in both directions of an axial direction through the inside of the housing tubular, passing the hydraulic fluid from one space to another by varying its volumes; where the piston advances towards a maximum compression position of the hydraulic device in which the movement of the piston towards the maximum compression position progressively reduces the volume of the lower space; the hydraulic device also adopting a resting position of maximum extension.
- It comprises a modular mechanism located inside the lower space of the tubular housing closed by its lower end by means of a cover.
- the upper space and the lower space communicate with each other through through perforations established in the plunger.
- the modular mechanism comprises an upper tubular head into which a lower tube is fitted and guided at the lower end of which an annular support is embedded, the upper tubular head having axial mobility when moving in a downward direction towards the position of maximum compression of the hydraulic device, such as when moving in the opposite direction upwards towards the position of maximum extension of the hydraulic device.
- the upper tubular head integrates through its wall through openings that communicate an internal chamber delimited by the inner faces of the lower tube and upper tubular head, with an annular outer chamber delimited by the inner face of the tubular housing and the outer faces of the tubular head upper and lower tube.
- the annular support has through holes that communicate with the outer annular chamber.
- the through holes of the annular support are faced with a front disk fixed to the lid; where the combination of the through holes and the front disk constitute a valve device that regulates the passage of hydraulic fluid through those through holes when the annular support rests on its lower face against the front disk.
- the front disk is dispensed with, whereby the through holes of the annular support are now facing the cover; where the combination of the through holes and the cover constitute a valve device that regulates the passage of hydraulic fluid through those through holes when the annular support rests on its lower face against the front disk.
- the annular support fits against the inner face of the tubular housing.
- a lower face of the annular support comprises a lower recess where the through holes open, while an upper face of the annular support comprises an upper recess where a lower end of the lower tube is embedded.
- the through openings of the upper tubular head comprise through slots that reach a lower edge of the upper tubular head.
- the upper tubular head of the modular mechanism is attached to the plunger, while in another alternative embodiment, the upper tubular head of the modular mechanism and the plunger are two independent elements that are separated from each other.
- the modular mechanism is complemented by a coaxial spring that works under compression and whose ends abut against the annular support and also against radial extensions of the upper tubular head, which fit against the inner face of the tubular housing, having the upper tubular head axial mobility both against the resistance of the coaxial spring when it travels in a downward direction against the resistance of the coaxial spring towards the maximum compression position of the hydraulic device, and when it travels in the opposite direction upwards towards the position of maximum extension of the hydraulic device in which the coaxial spring tends to axially move the upper tubular head upwards; the coaxial spring being located inside the annular outer chamber.
- the rod integrates a lower extension that extends below the plunger; where in some positions of the damping device, that lower extension fits snugly into the lower tube, that gap defining an annular passage of the hydraulic fluid.
- the upper tubular head integrates a trunk-conical upper mouth.
- the upper head of the annular mechanism includes a region of lower surface hardness than the area of the piston with which it contacts; where the initial contact between a part of the plunger and the upper tubular head when they approach each other is a damped contact that is carried out by that region of less hardness
- the region of least surface hardness is determined by an annular body attached to an upper edge of the upper tubular head.
- the lower tube assembly and annular support are joined by interference with the tubular housing, where the annular support is fixed to the tubular housing immovably, so that in this In case the coaxial spring is not necessary to restore the original position of the system of the invention after a duty cycle.
- variable load control system of the invention is relevant when mitigating problems arising from abrupt operation of the hydraulic device as specified below.
- the upper tubular head contacts the piston of the hydraulic device and marks the entry into operation of the system.
- the front disk in combination with the through holes of the annular support, constitute a valve device for regulating the passage of fluid through such through holes, which flow into the coaxial outer chamber.
- the through grooves located in the wall of the upper tubular head control the passage section of the hydraulic fluid through them depending on the relative position between the lower tube and the upper tubular head itself which is the element that travels with respect to the lower tube .
- the coaxial spring assembled by interference with the annular support and upper tubular head, has the mission of returning the system to its initial state after a work cycle.
- Figure 1 Shows a sectioned elevation view of a hydraulic device incorporating the variable load control system, object of the invention.
- the hydraulic device is a shock absorber that is in a position of maximum extension.
- Figure 2. Shows a sectional elevation view of the hydraulic device similar to that shown in Figure 1, where the shock absorber is located in a position close to its maximum extent.
- Figure 3. It shows a view similar to the previous ones where the shock absorber is in an intermediate position.
- Figure 4. Shows a sectioned elevation view where the shock absorber is in a position close to its maximum compression.
- Figure 5. Represents a sectional view of the shock absorber where a second embodiment is highlighted that has some differences with respect to the first embodiment shown in the previous figures.
- Figure 6.- Shows a sectional view of the shock absorber that presents a third embodiment of the invention that has differences with respect to that shown in the previous figures.
- Figure 7. Shows a perspective view of a modular mechanism that is housed inside a tubular housing below a piston integral with a rod that moves axially in both directions through the interior of the tubular housing during the operation of the shock absorber.
- Figure 8. Represents a perspective view of the modular mechanism also shown in the previous figure.
- variable load control system in a hydraulic device contemplates the following nomenclature used in the description:
- the hydraulic device shown in the figures is a shock absorber arranged in a vertical direction comprising a tubular housing (1) within which the modular mechanism (2) above which is located a rod (3) jointly and severally attached to a plunger (4) that separates a first upper space (5) above the plunger (4) and a second lower space (6) arranged by under the piston (4), the modular mechanism assembly (2) being located basically in this second lower space (6).
- a cover (7) fixed to the lower end of said tubular housing (1).
- the piston (4) integrates a perimeter skirt (4a) whose outer face adjusts against the inner face of the tubular housing (1), at the same time as such outer face of the perimeter skirt (4a) has a set of annular grooves (9 ).
- the plunger (4) is separated from the modular mechanism (2) without being joined together, while in another embodiment, the plunger (4) is attached to the modular mechanism (2) through the perimeter skirt (4a) of said plunger (4).
- the upper tubular head (10) includes a region of less surface hardness than the hardness of the piston material (4 ), so that when the piston (4) and modular mechanism (2) approach each other until they contact each other, this initial contact between the perimeter skirt (4a) and the upper tubular head (10) is a soft damped contact that It has a better performance of the hydraulic device.
- the region of least hardness in an embodiment of the invention is determined by an annular body (24) attached to an upper edge of the upper tubular head (10).
- the modular mechanism (2) as shown more clearly in Figures 7 and 8, comprises an upper tubular head (10) into which a lower tube (1 1) is fitted and guided at whose lower end a support is coupled annular (12), completing the modular mechanism (2) with a coaxial spring (13) that works under compression and whose ends stop against the annular support (12) and also against radial extensions (10a) of the upper tubular head (10) ), which fit against the inner face of the tubular casing (1) ensuring correct guidance of the upper tubular head during its axial mobility within the tubular casing (1), both against the resistance of the coaxial spring (13) when the upper tubular head (10) moves in a downward direction against the resistance of the coaxial spring (13) towards the maximum compression position of the shock absorber, such as when it moves in the opposite direction towards the position of maximum extension of the shock absorber in which the coaxial spring (13) tends to move the upper tubular head
- the annular support (12) has a first upper recess (12a) where the lower end of the lower tube (1 1) is embedded, with a second lower recess (12b) facing a front disc (14) fixed to the cover ( 7) Closing the lower end of the tubular housing (1).
- the annular support (12) also incorporates through holes (15) that connect the lower recess (12b) of said annular support (12) with an annular outer chamber (16) outside the lower tube (1 1), so that such outer annular chamber (16) is basically delimited between the inner face of the tubular housing (1) and the outer faces of the lower tube (11) and upper tubular head (10).
- the coaxial spring (13) of the modular mechanism (2) is housed inside the annular outer chamber (16).
- the annular outer chamber (16) is complemented by an internal chamber (17) delimited by the inner faces of the lower tube (11) and upper tubular head (10). It has an upper trunk-conical mouth (18) in an inverted position.
- the bottom of the lower recess (12b) of the annular support (12) abuts against the front disk (14), at least partially sealing the through holes (15 ) of the annular support (12), which will restrict or even cancel the passage of hydraulic fluid through the through holes (15) when the shock absorber moves to the position of maximum compression reducing its length.
- a part of the upper tubular head wall (10) has through slots (19) that allows the hydraulic fluid to pass between the outer annular chamber (16) and the inner chamber (17) in some relative positions between the upper tubular head (10) and the lower tube (1 1), reaching the maximum cross-section when the shock absorber is in the position of maximum extension in which the coaxial spring (13) is at rest fully extended without tension.
- the upper tubular head (10) stops at its lower edge against the annular support (12) which is in turn against the cover (7) that closes the lower end of the tubular housing (one). More specifically, the annular support (12) has an upper shoulder (20) against which the upper tubular head (10) abuts in the position of maximum compression.
- the rod (3) has a lower extension (3a) that extends down below the piston (4), so that in the position of maximum compression of the shock absorber and also in positions close to maximum compression ( Figure 4), that lower extension (3a) of the rod (3) fits snugly into the lower tube (1 1), this gap constituting an annular passage (21) of the hydraulic fluid passage that enhances the braking of the rod assembly (3) and piston (4) when the shock absorber approaches maximum compression.
- the maximum extension position of the shock absorber is shown in figure 1 and also in figures 2, 5 and 6.
- the upper tubular head (10) descends against the resistance of the coaxial spring (13), progressively reducing the flow of hydraulic fluid between the outer annular chamber (16) and the internal chamber (17) through the through slots (19) of the upper tubular head (10) , finally running the hydraulic fluid from the inner chamber (17) to the first upper space (5) above the plunger (4).
- the passage of the fluid is also carried out through the through holes (15) of the annular support (12) that is part of the valve device (2) formed by the combination of those through holes (15) and front disc (14).
- the front disk (14) is fixed to the cover (7) by a central body (22).
- annular support (12) fits against the inner face of the tubular housing (1).
- the rod (3) descends during the compression stroke of the shock absorber. Therefore, in the instants prior to the entry into operation of the modular mechanism (2), the rod (3) is in a position such that the skirt (4a) of the piston (4) does not contact any element of the modular mechanism ( 2). That is, the skirt (4a) of the piston (4) is located in an area of the tubular housing (1) above an upper level (23) at the point of entry into operation, so that that upper level (23) cited corresponds to the upper edge of the upper tubular head (10). In this situation, the Coaxial spring (13) keeps the upper tubular head (10) and lower tube (11) to its maximum extent.
- the hydraulic fluid has freedom of movement from the piston (4) to the valve device that combines the front disk (14) and the through holes (15) of the annular support (12). When the hydraulic device comes into operation, the sequence of events is as follows.
- the skirt (4a) of the piston (4) contacts the upper edge of the upper tubular head (10), so that the passage of hydraulic fluid out of that upper tubular head (10) is impeded and the lower space (6 ) is divided into two zones:
- the inner chamber (17) is defined superiorly by the inner area of the piston (4), inner diameter of the skirt (4a), the upper trunk-conical mouth (18) of the upper tubular head (10), the inner face of the lower tube (1 1), an inner region of the annular support (12) and the front disk (14).
- the passage of hydraulic fluid from the piston (4) to the valve device remains unchanged, as is the normal operation of the shock absorber.
- the annular outer chamber (16) is defined superiorly by an outer and lower portion of the skirt (4a) of the plunger (4), outer surfaces of the upper part of the upper tubular head (10), the outer face of the lower tube ( 11), an outer region of the annular support (12) and the inner face of the tubular housing (1).
- the fluid passage is carried out towards the internal chamber (17) through the through slots (19) of the upper tubular head (10) and the through holes (15) of the annular support (12) ).
- the through holes (15) of the annular support (12) are totally or partially closed by the front disk (14) fixed to the cover (7) that closes the lower end of the tubular housing (1).
- the perimeter skirt (4a) touches the upper edge of the upper tubular head (10) without interference between the inner diameter of said upper tubular head (10) and the outer diameter of the lower tube (1 1 ).
- the perimeter skirt (4a) of the piston (4) comes into contact with the upper tubular head (10) when the rod (3) and piston (4) assembly descends.
- the skirt (4a) of the piston (4) pushes on the upper edge of the upper tubular head (10), forcing its descent and compressing the coaxial spring (13).
- the older the compression of the shock absorber the greater the lowering of the upper tubular head (10) and, therefore, the greater the interference of the closure between the upper tubular head (10) and the lower tube (1 1), so that the section of progressively decreases passage through the through slots (19) of the upper tubular head (10).
- the valve device almost completely seals the passage of hydraulic fluid through the through holes (15) of the annular support (12), whereby the evacuation of the volume of hydraulic fluid enclosed in the annular outer chamber (16) towards the Inner chamber (17) is made through the through slots (19).
- This control mode generates a soft damper start whose load depends on the position of the damper (greater or lesser section of passage through the through slots (19) and speed), which generates a force that is a quadratic function of the speed.
- This control mode added to the previous one, means that the load does not increase excessively with the increase in speed.
- the quadratic shape of the load curve is corrected.
- the load increases practically linear with the speed.
- the rod (3) rises so that the skirt (4a) of the piston (4) ceases the pressure on the upper tubular head (10).
- the annular outer chamber (16) stops decreasing and begins to grow, whereby the pressure drops and the hydraulic fluid flow is reversed, allowing the valve device to close the through holes (15).
- the pressure of the annular outer chamber (16) decreases to equalize with the pressure of the inner chamber (17) and the piston (4) separates from the upper tubular head (10), allowing the passage of hydraulic fluid between the outer surface of the upper tubular head (10) and the inner face of the tubular housing (1).
- the coaxial spring (13) tends to decompress and return to its equilibrium position. Being assembled at its ends with interference to the upper tubular head (10) and the annular support (12) and, in turn, this annular support (12) to be with the tubular housing (1), the assembly reaches the position of rest and does not move.
- the basic geometric shapes of the design tend to be generated by revolution along the axis of the rod (3).
- this is not mandatory, since the final form will depend on the variation of the area you want to achieve, as well as other specifications such as weight, resistance, inertia, etc.
- One of the advantages of the present Design is that the final finishing of the pieces can be done piece by piece to optimize the continuous control of the passage area. In this aspect the following is observed.
- valve device The whole of the valve device is key in the invention, since the control of the braking pressure of the compression stop depends on its configuration, unlike in other inventions of a similar nature. In this sense, the geometry of the valve device is not tied exclusively to that illustrated in the figures.
- It can consist of one or more valve devices, whose accumulated stiffness will mark the behavior of the stop.
- the upper tubular head (10) fulfills the function of load variation depending on the position. Again, its geometry is not tied exclusively to that illustrated in the figures.
- the through grooves (19) of the upper tubular head (10) can be made by one or more grooves, holes or windows, and in general, any kind of groove that positively contributes to the way in which the passage section varies by increasing the area of interference between the upper tubular head (10) and the lower tube (1 1) to generate an input of greater or lesser abruptness.
- the lower tube (1 1) progressively covers the through slots (19) of the upper tubular head (10).
- its geometry does not have to be solid, being able to have grooves that communicate the inner chamber (17) and the outer annular chamber (16), so that the evolution of the load has a greater or lesser abruptness.
- the annular support (12) supports the valve device in combination with the front disk (14). Again its geometry is not linked exclusively to that illustrated in the figures and can have a variety of grooves to control the load variation when The pressure in the outer annular chamber (16) is such that the valve device opens the passage of hydraulic fluid.
- the versatility of the system of the invention allows the annular support (12) to rest directly on the cover (7) regardless of the front disk (14), counting the annular support (12) and the cover (7) with the grooves necessary to control the load.
- the coaxial spring (13) is responsible for returning the assembly to its initial position, as well as providing load dependent on the position.
- the coaxial spring (13) can have constant or variable stiffness and be composed of a thread with a section of free choice in terms of shape and size or an accumulation of rings It can be fixed by interference or by an additional piece.
- the coaxial spring (13) is dispensed with, as shown in Figure 6, where the upper head (10) is attached to the skirt (4a) of the plunger.
- the lower tube assembly (11) and annular support (12) are joined by interference with the tubular housing (1), where the annular support (12) is fixed to the tubular housing (1) immovably, so that in this case the coaxial spring (13) is not necessary to restore the original position of the hydraulic device after a duty cycle.
- the upper tubular head (10) is attached to the perimeter skirt (4a) of the plunger (4).
- the hydraulic device begins to function when an upper part of the lower tube (11) enters into a lower part of the upper tubular head (10), accompanying the movement of the piston (4) with the that said upper tubular head (10) is integral.
- the assembly can be used positioned for various applications.
- the shock absorber the invention can be applied as a hydraulic compression or hydraulic rebound stop. It is valid for any monotube or bitube technology and can be installed in the main body of the shock absorber or in neighboring bodies, for example, in reserve chambers of hydraulic fluid
- the invention is applicable to any hydraulic device intended to be part of a structure, fixed or mobile, to provide a mechanical-hydraulic limit switch as in structures (solar panels, metal structures for buildings, etc.) or in motor vehicles.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112017001405-0A BR112017001405B1 (pt) | 2014-07-23 | 2015-06-25 | Dispositivo hidráulico com um sistema de controle de carga variável |
EP15824600.9A EP3173655B8 (en) | 2014-07-23 | 2015-06-25 | Variable load control system in a hydraulic device |
ES15824600T ES2781112T3 (es) | 2014-07-23 | 2015-06-25 | Sistema de control de carga variable en un dispositivo hidráulico |
CN201580051445.5A CN107002811B (zh) | 2014-07-23 | 2015-06-25 | 液压装置中的可变载荷控制系统 |
JP2017503590A JP6419303B2 (ja) | 2014-07-23 | 2015-06-25 | 流体圧装置の可変負荷制御システム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP201431107 | 2014-07-23 | ||
ES201431107A ES2561132B1 (es) | 2014-07-23 | 2014-07-23 | Sistema de control de carga variable en un dispositivo hidráulico |
Publications (1)
Publication Number | Publication Date |
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WO2016012642A1 true WO2016012642A1 (es) | 2016-01-28 |
Family
ID=55162542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2015/070494 WO2016012642A1 (es) | 2014-07-23 | 2015-06-25 | Sistema de control de carga variable en un dispositivo hidráulico |
Country Status (7)
Country | Link |
---|---|
US (1) | US9982738B2 (es) |
EP (1) | EP3173655B8 (es) |
JP (1) | JP6419303B2 (es) |
CN (1) | CN107002811B (es) |
BR (1) | BR112017001405B1 (es) |
ES (2) | ES2561132B1 (es) |
WO (1) | WO2016012642A1 (es) |
Cited By (1)
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ES2832888A1 (es) * | 2019-12-11 | 2021-06-11 | Kyb Europe Gmbh Sucursal En Navarra | Dispositivo de control hidraulico de carga variable |
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FR3066796B1 (fr) * | 2017-05-24 | 2019-06-21 | Peugeot Citroen Automobiles Sa | Butee hydraulique auto-ajustable pour la fin de course d’un mouvement oscillant |
IT201700061233A1 (it) * | 2017-06-05 | 2018-12-05 | Sistemi Sospensioni Spa | Ammortizzatore idraulico per sospensione di veicolo provvisto di tampone idraulico operante durante la corsa di compressione dell'ammortizzatore. |
DE102018121694A1 (de) | 2017-09-07 | 2019-03-07 | Stabilus Gmbh | Systeme und Verfahren zum Dämpfen von Photovoltaikmodulgruppierungen |
US10670107B2 (en) * | 2017-12-15 | 2020-06-02 | Beijingwest Industries Co., Ltd. | Hydraulic damper with a hydraulic compression stop assembly |
IT201800004912A1 (it) * | 2018-04-27 | 2019-10-27 | Dispositivo a molla e gruppo valvolare per un contenitore per bevande | |
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- 2015-06-25 JP JP2017503590A patent/JP6419303B2/ja active Active
- 2015-06-25 BR BR112017001405-0A patent/BR112017001405B1/pt active IP Right Grant
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ES2832888A1 (es) * | 2019-12-11 | 2021-06-11 | Kyb Europe Gmbh Sucursal En Navarra | Dispositivo de control hidraulico de carga variable |
WO2021116510A1 (es) * | 2019-12-11 | 2021-06-17 | Kyb Europe Gmbh, Sucursal En Navarra | Dispositivo de control hidráulico de carga variable |
Also Published As
Publication number | Publication date |
---|---|
US20160025174A1 (en) | 2016-01-28 |
US9982738B2 (en) | 2018-05-29 |
JP6419303B2 (ja) | 2018-11-07 |
CN107002811B (zh) | 2019-08-16 |
BR112017001405B1 (pt) | 2022-09-06 |
EP3173655A4 (en) | 2017-08-30 |
EP3173655A1 (en) | 2017-05-31 |
JP2017521618A (ja) | 2017-08-03 |
EP3173655B8 (en) | 2020-04-22 |
BR112017001405A2 (pt) | 2017-11-21 |
CN107002811A (zh) | 2017-08-01 |
ES2781112T3 (es) | 2020-08-28 |
ES2561132A1 (es) | 2016-02-24 |
EP3173655A8 (en) | 2017-07-12 |
EP3173655B1 (en) | 2020-03-11 |
ES2561132B1 (es) | 2016-12-19 |
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