Abstract:
A hydroelastic joint having first and second axial ends (B, H) spaced apart from one another along a longitudinal axis (Y) and including, at an increasing radial distance from this axis, at least one internal frame (1), an intermediate frame (2) with a window or “cage”, and an external sleeve (4), which joint also includes an elastomer packing (5) molded with at least one molding insert chosen from the assembly including the internal frame (1), the cage (2) and the external sleeve (4), in which said packing (5) at least partially forms a wall for at least two hydraulic fluid chambers (6) communicating with one another through at least one channel (30), and sealing means (3). The assembly formed by the packing (5) and each insert has at least an essentially axial molding reserve. Each chamber (6) and each channel (30) are defined inside the molding reserve and are sealed or delimited, at least in an axial direction, by the sealing means (3).
Abstract:
The invention relates to a hydroelastic joint that is used to assemble two pieces. The inventive joint comprises an external reinforcement (1) and an internal reinforcement (3), each having a longitudinal axis, and one of which is disposed around the other. Moreover, said joint comprises a first assembly (5) forming a hydroelasctic spring which is disposed between said reinforcements. The aforementioned first assembly comprises a first elastically-deformable element (6) which is shaped in such a way as to define, between the reinforcements, at least one sealed volume (9) that contains a damping fluid (8). A second elastically-deformable element (24) is disposed between the first assembly and the first of said external and internal reinforcements. The invention is characterized in that the second elastically-deformable element (24) is provided with a longitudinal dimension which is smaller than the corresponding longitudinal dimension of the first elastically-deformable element (6). In this way, the transversal deformation of the first elastically-deformable element (6) is limited during the relative tilting of the longitudinal axes of said reinforcements around at least one transverse tilting axis (D).
Abstract:
Hydroelastic joint comprising an elastically deformable element (6) shaped so as to define, between two armatures (1, 2), a volume containing a damping liquid and comprising at least two chambers (10, 11) opposite one another along a predefined damping direction. The joint comprises a connection circuit that connects the chambers, and flow control means (26, 27) that can be switched to a first asymmetrical state in which the flow resistance of the connection circuit is lower in a first direction from a first of the chambers to a second of the chambers than in a second direction from the second chamber to the first chamber, and a second asymmetrical condition in which the flow resistance of the connection circuit is lower in the second direction than in the first direction.
Abstract:
A snow sock is provided that includes a covering that extends in a circumferential direction. The covering has a thickness and an outer surface. A first thickness section is present and extends along a first arc length, and has a first thickness section inner surface that engages the outer surface of the covering. At least 50% of the first thickness section inner surface engages the outer surface of the covering and/or a first fill element. A second thickness section is also provided and is spaced from the first thickness section. The second thickness section extends in the circumferential direction along a second arc length, and has a second thickness section inner surface that engages the outer surface of the covering. At least 50% of the second thickness section inner surface engages the outer surface of the covering and/or a second fill element.
Abstract:
The invention relates to a hydroelastic joint that is used to assemble two pieces. The inventive joint comprises an external reinforcement (1) and an internal reinforcement (3), each having a longitudinal axis, and one of which is disposed around the other. Moreover, said joint comprises a first assembly (5) forming a hydroelasctic spring which is disposed between said reinforcements. The aforementioned first assembly comprises a first elastically-deformable element (6) which is shaped in such a way as to define, between the reinforcements, at least one sealed volume (9) that contains a damping fluid (8). A second elastically-deformable element (24) is disposed between the first assembly and the first of said external and internal reinforcements. The invention is characterised in that the second elastically-deformable element (24) is provided with a longitudinal dimension which is smaller than the corresponding longitudinal dimension of the first elastically-deformable element (6). In this way, the transversal deformation of the first elastically-deformable element (6) is limited during the relative tilting of the longitudinal axes of said reinforcements around at least one transverse tilting axis (D).
Abstract:
A frequency decoupling device for decoupling a first part with respect to a second part. The device comprises a rigid outer sleeve (1) which is adapted to be secured to the first part and, positioned inside the outer sleeve, a rigid inner sleeve (2) which is adapted to be secured to the second part, an elastically deformable element (3, 4, 10) being interposed between the sleeves so as to form between the sleeves at least one annular chamber (5) containing a liquid. With the chamber having an inner perimeter “Pint”, a mean height “H” on the perimeter and a mean thickness “E” on the perimeter, the mean thickness E satisfies the following condition: E ≤ ( P int / 2 π ) 3 200000 × H , the inner perimeter Pint, the mean height H and the mean thickness E being expressed in millimeters.
Abstract translation:一种用于使第一部分相对于第二部分去耦的频率去耦装置。 该装置包括刚性外套筒(1),其适于固定到第一部件并且位于外套筒的内部,刚性内套筒(2)适于固定到第二部件,弹性变形元件 (3,4,10)插入在所述套筒之间,以在所述套筒之间形成至少一个包含液体的环形室(5)。 在该室具有内周边“品脱”的情况下,周长上的平均高度“H”和周长上的平均厚度“E”,平均厚度E满足以下条件:E≤(P int / 2&pgr; )3 200000×H,内周笔尖,平均高度H和平均厚度E以毫米表示。
Abstract:
A technique for compensating side pull in a vehicle, the suspension system of the steering axle of the said vehicle comprising a virtual pivot point. The method applies a steering torque (Cg) to the wheel-carrier (2g) by way of one of the arms (5g, 6g) of the virtual pivot point.
Abstract:
Hydroelastic joint comprising an outer shell (1) and an inner shell (2) arranged one around the other and an elastically deformable element (6) arranged between the shells and shaped so that it defines at least two chambers (17a, 17b) opposite one another along a predefined damping direction (b), the chambers being able to communicate via at least one overpressure channel (25a, 25b) having at least one portion with variable cross-section, characterized in that it comprises force return means (24) to produce, from a force (F) tending to displace the shells relative to one another, a tightening force (P) at the level of the portion with variable cross-section of the overpressure channel, to oppose the circulation of damping liquid through the overpressure channel.