公开(公告)号：WO2021260586A1

公开(公告)日：2021-12-30

申请号：PCT/IB2021/055558

申请日：2021-06-23

Applicant: WAY ASSAUTO SRL

Inventor： COTTO, Fabio

IPC: B60G11/26 ,  B60G11/30 ,  B60G17/056 ,  B60G21/067 ,  B60G21/073 ,  F15B1/00 ,  B60G11/265 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/416 ,  B60G2204/81 ,  B60G2204/82 ,  B60G2204/8304

Abstract: The suspension (10) includes: a hydraulic actuator (12) intended to be arranged between a respective wheel (W) of the vehicle and a body (B) of the vehicle and comprising a cylinder (16), a piston (18) slidably mounted inside the cylinder (16) so as to divide an internal volume of the cylinder (16) into a pair of variable-volume chambers (20, 22), namely a compression chamber (20) and an extension chamber (22), both containing a working fluid, and a rod (24) rigidly connected to the piston (18) and projecting from the cylinder (16) on the same side as the extension chamber (22); and a supply hydraulic circuit (14) connected to the actuator (12) to supply the compression chamber (20) and the extension chamber (22) with the working fluid. The supply hydraulic circuit (14) comprises a hydraulic pump (30), a high-pressure line (32) connected to a delivery port (34) of the pump (30), a low-pressure line (36) connected to a suction port (38) of the pump (30), a spool valve (40) connected on one side to the compression chamber (20) and to the extension chamber (22) of the actuator (12) and on the other side to the high- pressure line (32) and to the low-pressure line (36) to put said chambers (20, 22) of the actuator (12) in fluid communication with said lines (32, 36) of the supply hydraulic circuit (14), and a first pressure accumulator (42) connected to the high-pressure line (32). The spool valve (40) comprises a spool (56) which is continuously movable between a plurality of operating positions, in each of which the spool valve (40) connects at least one of the compression chamber (20) and the extension chamber (22) of the actuator (12) with the high-pressure line (32).

公开(公告)号：WO2021097341A1

公开(公告)日：2021-05-20

申请号：PCT/US2020/060577

申请日：2020-11-13

Applicant: CLEARMOTION, INC.

Inventor： O'SHEA, Colin, Patrick ,  SELDEN, Brian, Alexander ,  TUCKER, Clive

IPC: B60G13/08 ,  B60G15/12 ,  B60G11/26 ,  B60G11/27 ,  B60G13/14 ,  B60G17/04 ,  B60G11/56 ,  B60G2204/82 ,  B60G2300/30 ,  F16F9/18 ,  F16F9/46 ,  B60G2400/91 ,  B60G2500/02 ,  B60G2600/85 ,  B60G2202/12 ,  B60G2500/22 ,  F15B2211/27 ,  F16F9/08 ,  F16F9/06 ,  B60G2400/60

Abstract: Hydraulic systems and methods for reducing the propagation of flow and/or pressure pulsations within a hydraulic system are described. In one embodiment, a hydraulic system may include a hydraulic device and a differential buffer fluidly connected to the hydraulic device. The differential buffer may include a piston that is exposed to pressure pulsations that propagate along separate flow paths and that are at least partially out of phase with one another. Corresponding displacement of the piston due to the out of phase pulsations may at least partially mitigate propagation of the pulsations within the hydraulic system downstream from the differential buffer.

公开(公告)号：WO2022096469A1

公开(公告)日：2022-05-12

申请号：PCT/EP2021/080416

申请日：2021-11-02

Applicant: MUHR UND BENDER KG

Inventor： SCHRÖDER, Daniel ,  SCHRÜLLKAMP, Thomas ,  GERSMEIER, Andreas ,  ZELLER, Gerhard ,  VOS, Serge

IPC: B60G11/30 ,  B60G11/64 ,  B60G17/02 ,  B60G21/055 ,  B60G17/025 ,  B60G21/0558 ,  B60G2202/135 ,  B60G2202/154 ,  B60G2202/441 ,  B60G2204/82 ,  B60G2500/22

Abstract: Die Erfindung betrifft eine Stabilisatoranordnung für ein zweispuriges Fahrzeug, umfassend: einen ersten und einen zweiten Stabilisatorabschnitt (3, 4); ein Federelement (5) zwischen den Stabilisatorabschnitten (3, 4); einen hydraulischen Aktuator (6) mit einem Aktuatoraußenteil (7) und einem Aktuatorinnenteil (8), die jeweils mit einem der Stabilisatorabschnitte (3, 4) drehfest verbunden sind, sowie mit einem Zwischenelement (9), das über äußere und innere Eingriffsmittel (18, 19) mit dem Aktuatoraußenteil beziehungsweise Aktuatorinnenteil (7, 8) verbunden ist, wobei eines der Eingriffsmittel (18, 19) eine Steigungskomponente in axiale Richtung aufweist und das andere parallel zur Längsachse verläuft, so dass ein relative Drehbewegung der Aktuatorteile (7, 8) in eine axiale Bewegung des Zwischenelements (9) umgewandelt wird, wobei das Zwischenelement (9) eine erste beziehungsweise zweite Hydraulikkammer (20, 21) druckbeaufschlagt; wobei die Hydraulikkammern (20, 21) unter Zwischenschaltung eines Steuerelements (22) hydraulisch miteinander verbunden sind.