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WO/1999/006733A1 |
A fluid mounting (20) for isolating or damping vibration between a vibrating member (21) and a structure (23). In one aspect, the fluid mounting (20) includes inner (22) and outer (24) members, a flexible element (26), first (28) and sec...
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WO/1999/006734A1 |
A fluid damper to damp unwanted vibration between a first member (21) and a second member (23, 23'), such as between a rotor blade and hub within a helicopter rotor system. According to a first aspect, the fluid damper (20) includes an o...
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WO/1999/006732A1 |
A fluid isolator apparatus (20) for isolating vibration between a vibrating member, such as a helicopter transmission or pylon and another structure, such as a helicopter fuselage. In one aspect, the fluid and elastomer apparatus (20) in...
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WO/1999/005429A1 |
The invention relates to a sleeve-shaped rubber bearing having hydraulic damping effect, with at least two hydraulic working compartments (4, 5). The inventive bearing has at least one throttle channel (6) for damping low amplitude oscil...
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WO/1999/002890A1 |
The invention concerns a device reducing vibrations along an axis, in an extended frequency field, and with an optimum efficacy/mass ratio. In its simplest embodiment, it consists of a spring disk (60), two electromagnets (75), and a mas...
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WO/1998/058834A1 |
The invention relates to a bushing for fastening of track rods (1) between the chassis and the wheel-bearing housing in cars and it comprises an outer sleeve (3) intended to be fastened to the end of the track rod (1) with its envelope s...
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WO/1998/054486A1 |
A vibration isolator including a housing (51), a piston (47), a tuning passage (57), and flow diverters (51). The ends of tuning passage (57) are provided with an enlarged section defined by a compound radius (Rc). The enlarged section h...
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WO/1998/049461A1 |
The invention relates to a controllable adjustment and damping device comprising at least one pressure chamber (4) filled with hydraulic fluid, a fluid container (11), a pump (5) connecting the pressure chamber to the fluid container, a ...
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WO/1998/045615A1 |
An active fluid mounting for isolating vibration between a vibrating member (21) and a structure (23). In one aspect, the active fluid mounting (20) includes an inner member (22), an outer member (24), a first flexible element (26), and ...
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WO/1998/039580A1 |
A vibration damping and isolation apparatus (10) including a passive damping mechanism (28) and an active enhancement mechanism (66). The passive damping mechanism operates to dissipate vibratory and shock forces applied to the vibration...
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WO/1998/039578A1 |
A controllable valve assembly (18) applicable in Magnetorheological (MR) fluid devices (20), such as MR mounts and MR dampers. The valve assembly (18) includes a valve body (32) having a magnetic circuit (40) contained therein which carr...
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WO/1998/024956A1 |
The invention concerns looms in which each heald is equipped with a threaded joining piece on which is screwed the upper end of a return screw spring (6) the other end of which is screwed on a threaded joining piece (7), integral with me...
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WO/1998/004780A1 |
A device including a first member (20) surrounding and secured to a section of a cable (6), a second member (22) connected to an element (12) to which a portion of the cable (6) is attached, and arranged around said first member, a resil...
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WO/1998/000654A1 |
A hydraulically damping elastomer bearing (1) comprises an outer bearing bush (2) as well as an elastomer body (4) disposed therein and a bearing core (3) held by said body. Between the bearing core and the bearing bush there are liquid-...
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WO/1997/048921A1 |
A pneumatic spring (10) including a top load transfer member (20), a spaced apart bottom load transfer member (30), and a side wall (40) extending between the top and bottom load transfer members (20, 30). The side wall (40) is formed fr...
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WO/1997/046766A1 |
A rear side of an operator's cabin body (11) is resiliently supported by a rubber mount (13), and a front side of the operator's cabin body (11) is resiliently supported by a spring mount (23), of which a spring constant is set to be sma...
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WO/1997/043562A1 |
The invention relates to a shock absorber for railway vehicles and industrial applications. Said shock absorber comprises a combination of a mechanical spring unit (1) and a hydraulic damper (2). There is a defined number of throttling p...
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WO/1997/043561A1 |
A method and apparatus is described for limiting transient motions between an aircraft power member and aircraft structure. The apparatus incorporates a coupler (20) for use with inertial-type mounts and includes a body portion (21) havi...
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WO/1997/042429A1 |
A pneumatic spring, in particular for rail vehicles, trucks and busses, has a bellows (3) made of elastomer material, if required provided with reinforcing inserts; a pot (2) to whose upper part the bellows (3) are secured, the bellows p...
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WO/1997/041384A1 |
An engine mount actuator (5) having an upper casing (9) open at one end, and connected at an opposite end to an engine mounting bolt (24). The engine mounting bolt (24) extends within the casing and is supported by a bushing (23) which i...
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WO/1997/039886A1 |
An elastomeric reinforced panel contains a frame in the form of cells joined together and an elastomeric filler, connected to the frame; in addition, the cells are joined together or attached to additional connecting members by means of ...
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WO/1997/030859A1 |
A skidsteer loader having an eccentric axle housing (26) which permits the use of common components to construct skidsteer loaders with different wheel base lengths. The eccentric axle housing (26) is constructed such that when it is mou...
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WO/1997/030895A1 |
A method is described for identifying the primary load path of a particular engine (13). An elastomeric mount (12, 14) may then be made laterally soft in a first (in the disclosed case, the tangential) direction and more rigid in the dir...
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WO/1997/021576A1 |
The invention concerns a spring device, in particular for the area of railway vehicles, in particular for spring suspension between a bogie and coach body, the spring device being located between a supporting plate (1) and a substructure...
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WO/1997/009190A1 |
An active vehicle suspension employs a multi-point support system between a vehicle's chassis and cab. Each support point has an isolator which includes a linear hydraulic actuator (52) that is connected at its quiet end to the payload b...
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WO/1997/006372A1 |
A vibration isolation device (5) comprises an elastic body (3), in which elastic material layers and rigid material layers are alternately laminated on one antoher, and a columnar-shaped lead (4) arranged in a hollow portion (12) defined...
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WO/1997/003852A1 |
A vehicle strut type suspension system has a lower arm comprising a lateral arm (31) and a compression arm (60). One end of the lateral arm is rotatably connected to a hub carrier supporting a wheel (1), and the other end thereof is rota...
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WO/1997/004246A1 |
The invention relates to a vibration damper having a housing formed by a shell part (1) and a base part (2), in which housing a pressure cavity (3) is located, which cavity at least partially is delimited by a membrane (4) of elastomer m...
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WO/1997/001046A1 |
Described is a hydraulically damping bearing (10), in particular a vehicle-engine bearing, with a liquid-filled working chamber (11) which is formed by elastic walls (20) that support the central bearing element (18). Located in the work...
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WO/1996/023987A1 |
The device comprises a cylinder (1) which is divided in two variable volume chambers (3, 4) by a piston (2, 2'), which has conduits (5, 5') for the passage of a fluid from one chamber to the other, and spring means (15) for pushing the p...
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WO/1996/017183A1 |
A tunable dual-axis live isolator (31) with a vertical single-axis isolator (33) and a horizontal single-axis isolator (35) with cruciform member (41) serving as pistons for both single-axis isolators (33-35). The isolator (31) is tuned ...
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WO/1996/017184A1 |
A hydraulic mounting device (1) has a primary hydraulic chamber (8) whose deformable side wall (81) lacks load-bearing resilience, connected through an access opening (61) to a secondary hydraulic chamber (9) whose deformable wall (91) m...
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WO/1996/014520A1 |
A liquid-filled suspension which connects one of separate members to the other and comprises a cylindrical-shaped mount rubber (43) secured to the one of the separate members and having the other of the separate members axially slidably ...
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WO/1996/013675A1 |
A hydraulic vibration-damping mounting comprising a first rigid reinforcement (1), a second rigid reinforcement (2) in the form of a plate, and a bell-shaped elastomeric body (3, 4) interconnecting the two reinforcements and forming a wo...
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WO/1996/004491A1 |
The present invention provides a method of improving the vibrational damping characteristics of a structural material and the articles (1, 4) formed therefrom. The method involves: forming a cavity (2, 5) within the structural material a...
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WO/1996/004492A1 |
The invention relates to a fluid device (20) for providing high load carrying capacity in one direction and which provides a high level of damping along a substantially perpendicular direction. This is achieved by a device which includes...
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WO/1995/034769A1 |
An active mount (10) for fixed wing applications. One aspect of the invention provides decoupling of two tones which are close in frequency by positioning the mount actuators (16) and error sensors (18) in the primary transmission path o...
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WO/1995/032872A1 |
An adjustement mechanism (16) for adjusting the height of a chair seat (10), table top or the relative position of other items includes an outer support tube (30) and a telescoping, column tube subassembly (32). The column tube subassemb...
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WO/1995/030843A1 |
A hybrid fluid and elastomer damper, which may be utilized as a lead-lag damper for a helicopter rotor application, reduces vibratory motion transmitted axially, torsionally and angularly between a pair of components, such as a rotor and...
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WO/1995/027155A1 |
A hydraulic inertial vibration isolator (1) is connected between a vibrating body (3) and an isolated body (5). The vibration isolator (1) comprises a cylinder (7) which includes two chambers (35, 37) and a piston (9) therebetween. The c...
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WO/1995/007419A1 |
This invention relates to a liquid sealed rubber mount capable of displaying an excellent vibration isolating effect in intermediate and high frequency ranges, having a vibration isolating effect with no resonation occurring with respect...
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WO/1994/027083A1 |
An inertial coupling mount with active vibration isolation means between the source of vibration and the base to which it is mounted is disclosed. Inertial coupling (30) in series with actuator (4) provides vibration control force to eff...
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WO/1994/025775A1 |
The invention relates to an arrangement for a gas spring (1). This consists of an outer cylindrical casing (1a) with a sealing end wall (1b, 1c) at either end. Of these, one (1c) has an axial bore for a piston rod (4a) passing through th...
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WO/1994/024456A1 |
A compression element (10) having a deflectable elastomeric member (12) is disclosed. The compression element (10) exhibits a decreasing axial spring rate in response to axial movement and compression of the deflectable member. The compr...
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WO/1994/023420A1 |
A vibration control system includes a processor-based circuit which monitors and controls an analog vibration control circuit. The system includes a sensor to detect the undesirable vibrations and a synchronous pulse generator for determ...
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WO/1994/009286A1 |
A valve (1) and an improvement thereto are provided for controlling the movement of electro-rheological fluids, and used preferably on a hydro-elastic vibration reducing mounting for a motor vehicle engine. Vibration of various origins m...
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WO/1994/005948A1 |
A means for providing an internal damping mechanism for a system with structural load supporting members (3) that may be subject to time-varying loads, where the structure's structural members have rough holes (4) formed in them, either ...
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WO/1994/004842A1 |
A damping device which provides superior damping stiffness K" has linear damping characteristics as a function of amplitude and for which the temperature sensitivities of stiffnesses K*, K", K\' have been minimized. The device includes a...
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WO/1994/000704A1 |
Magnetorheological (MR) fluid dampers (16) are optimized. Dimensional relationships involved in the flow of magnetic flux are related to an operational parametric ratio of magnetic flux density in the fluid to the flux density in the ste...
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WO/1993/015334A1 |
A vibration isolator (10) has four fluid-filled variable volume load-bearing chambers (32a-d), with two arranged on one side of a core (20) and the other two on the other side. The core (20) and chambers (32a-d) are contained within a fr...
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