公开(公告)号：US20250083488A1

公开(公告)日：2025-03-13

申请号：US18958462

申请日：2024-11-25

Applicant: DRiV Automotive Inc.

Inventor： Monzer AL SAKKA ,  Miguel DHAENS

IPC: B60G17/08 ,  B60G13/08

Abstract: A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first longitudinal hydraulic line extends between and connects the first and third hydraulic circuits and a second longitudinal hydraulic line extends between and connects the second and fourth hydraulic circuits. A single bi-directional pump is connected in-line with a fluid distribution line that extends between and connects the first and second longitudinal hydraulic lines a can pump fluid in opposite directions through the fluid distribution line to provide active roll stiffness.

公开(公告)号：US12234881B2

公开(公告)日：2025-02-25

申请号：US17871172

申请日：2022-07-22

Applicant: HL Mando Corporation

Inventor： Sangyeon Cho

IPC: F16F9/49 ,  F16F9/10 ,  F16F9/348 ,  F16F9/48 ,  B60G13/08

Abstract: A shock absorber includes a piston valve, a body valve installed at a lower side of a tube, a lower guide member installed between the piston valve and the body valve and including a lower through-hole through which the fluid passes, and a lower passing slit formed to allow the fluid to pass therethrough at a flow rate relatively lower than a flow rate at which the fluid passes through the lower through-hole, a mid-guide member having a mid-guide hole through which the fluid passes, the mid-guide member being disposed between the piston valve and the lower guide member and configured to close the lower through-hole when the mid-guide member is in contact with the lower guide member, a first elastic member interposed between the lower guide member and the mid-guide member, and a second elastic member interposed between the piston valve and the mid-guide member.

公开(公告)号：US12222018B2

公开(公告)日：2025-02-11

申请号：US17640857

申请日：2020-09-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Kazuya Yamada ,  Kentaro Yamada ,  Reiji Nakagawa ,  Hiroyasu Sato ,  Sadatomo Matsumura ,  Wataru Takagi

IPC: F16F9/32 ,  B60G13/08 ,  F16F9/18

Abstract: This shock absorber includes a piston main body and a piston band. The piston main body has, at an outer peripheral portion thereof, a stepped portion including a large-diameter surface portion, a stepped surface portion and a small-diameter surface portion. The piston band has, at an outer peripheral portion thereof, a large diameter portion, a medium diameter portion formed so as to have a smaller diameter than the large diameter portion, and a small diameter portion formed between the large diameter portion and the medium diameter portion so as to have a smaller diameter than the medium diameter portion, in a state before being disposed in a cylinder. At one end on the side close to a tip portion of a piston rod, an inner peripheral surface is inclined toward the piston main body side from the large-diameter surface portion to a small-diameter surface portion of the stepped portion.

公开(公告)号：US20240416708A1

公开(公告)日：2024-12-19

申请号：US18637501

申请日：2024-04-17

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Jochen Liebold

IPC: B60G17/08 ,  B60G13/08 ,  B60G17/015 ,  B60G17/0165

Abstract: A damping system of an active chassis for one wheel of a motor vehicle. The system includes a double-acting hydraulic cylinder and a damper having a piston, which damper is couplable to a wheel suspension system for the wheel. The system also includes a hydraulic pump, and a hydraulic unit having a hydraulic reservoir and valves. The hydraulic pump and the hydraulic unit cooperate with hydraulic chambers of the hydraulic cylinder such that, depending on the direction of conveyance of the hydraulic pump, a movement of the piston in a first direction of actuation or in a second direction of actuation can be provided. The damper includes the hydraulic cylinder and the piston is designed such that, in the region of the damper, a flow of hydraulic oil via the piston or along the piston of the damper is at most 3 L/min.

公开(公告)号：US12151532B2

公开(公告)日：2024-11-26

申请号：US18017447

申请日：2021-07-21

Applicant: JAGUAR LAND ROVER LIMITED

Inventor： Luke Birch ,  Jim Kelly ,  Dennis Lausecker

IPC: B60G17/08 ,  B60G13/08 ,  B60G17/015 ,  B60G17/016

Abstract: Aspects of the present invention relate to a system for a vehicle comprising: a hydraulic suspension actuator comprising a piston, a first upper fluidic chamber and a second lower fluidic chamber, the first and second fluidic chambers separated by the piston; at least one actuator system module mounted to a subframe and laterally separated from the hydraulic suspension actuator, the at least one actuator system module comprising one or more actuator system components; a longitudinal beam located laterally between the hydraulic suspension actuator and the at least one actuator system module; and at least one conduit fluidly connecting the hydraulic suspension actuator and the at least one actuator system module, wherein the at least one conduit passes over the longitudinal beam.

公开(公告)号：US20240383304A1

公开(公告)日：2024-11-21

申请号：US18197382

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Monzer AL SAKKA ,  Miguel DHAENS

IPC: B60G17/08 ,  B60G13/08

Abstract: A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first longitudinal hydraulic line extends between and connects the first and third hydraulic circuits and a second longitudinal hydraulic line extends between and connects the second and fourth hydraulic circuits. A first bi-directional pump is connected in-line with a fluid distribution line that extends between and connects the first and second longitudinal hydraulic lines a can pump fluid in opposite directions through the fluid distribution line to provide active roll stiffness.

公开(公告)号：US12103344B2

公开(公告)日：2024-10-01

申请号：US17395736

申请日：2021-08-06

Applicant: AllTech Motorsports Inc.

Inventor： Wayne E. Israelsen ,  Zachary W. Israelsen

IPC: B60G13/08 ,  B60G13/00 ,  B60G15/06 ,  F16F9/34

CPC classification number: B60G13/08 ,  B60G13/003 ,  B60G15/067 ,  B60G2202/24 ,  B60G2202/312 ,  B60G2204/128 ,  B60G2204/61 ,  B60G2204/62 ,  B60G2206/41 ,  B60G2206/71 ,  B60G2206/72 ,  B60G2500/104 ,  B60G2500/201 ,  B60G2600/20 ,  B60G2600/21 ,  B60G2800/162

Abstract: A damper for use with an automotive coil over shock absorber. An outer damping sleeve is retained over the exterior surface of an inner body and includes a plurality of bypass ports to alternately align and unalign with bypass ports of the inner body to regulate a bypass flow of damping oil between an interior volume and an outer passage, thereby allowing variable damping control of the damper. The outer damping sleeve is connected to an internal floating piston (IFP) which rides inside the inner body. A control spring is retained for applying a force to the IFP to limit the free movement of the IFP and thereby control a damping force of the damper during the damping event. Increased pressure in the hydraulic damping oil causes the IFP to move, causing the bypass ports to open and close depending on the forces subject to the damper.

公开(公告)号：US12085141B2

公开(公告)日：2024-09-10

申请号：US17430439

申请日：2020-02-14

Applicant: Hitachi Astemo, Ltd.

Inventor： Masato Suehiro ,  Atsushi Maeda ,  Yuji Nakayama ,  Takashi Kozono ,  Koichi Yamaka

IPC: F16F9/54 ,  F16F9/18 ,  F16F9/32 ,  B60G13/08 ,  B60G17/08 ,  F16F9/38 ,  F16F9/46

CPC classification number: F16F9/54 ,  F16F9/182 ,  F16F9/3221 ,  F16F9/3271 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2204/128 ,  B60G2204/129 ,  B60G2204/40 ,  B60G2206/41 ,  B60G2206/82092 ,  B60G2500/11 ,  B60G2800/162 ,  B60G2800/916 ,  F16F9/38 ,  F16F9/463 ,  F16F2222/12 ,  F16F2226/045 ,  F16F2228/066 ,  F16F2230/10 ,  F16F2230/18 ,  F16F2232/08 ,  F16F2234/02

Abstract: A mounting eye (21) is fastened to a rod by pushing, partially or over an entire periphery, an outer periphery of a joint portion of a mounting eye into an annular groove of the rod. Accordingly, an axial length of a fastening portion can be set shorter than that of a related-art structure (screw fastening), thereby being capable of securing a stroke of the rod of a shock absorber in which the mounting eye is fastened to the rod.

公开(公告)号：US20240288046A1

公开(公告)日：2024-08-29

申请号：US18583179

申请日：2024-02-21

Applicant: Kyb Europe GmbH, Sucursal En Navarra

Inventor： Javier Sobejano Landívar

IPC: F16F9/348 ,  B60G13/08 ,  B60G17/08 ,  F16F9/18 ,  F16F9/36 ,  F16F9/50 ,  F16K15/18 ,  F16K31/06

CPC classification number: F16F9/348 ,  F16F9/185 ,  F16F9/369 ,  F16F9/50 ,  F16K15/182 ,  F16K31/0655 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2204/62 ,  B60G2206/41 ,  B60G2500/104 ,  B60G2500/114 ,  B60G2600/182 ,  B60G2800/162 ,  B60G2800/916 ,  F16F2222/12 ,  F16F2230/0052 ,  F16F2230/30

Abstract: A solenoid valve that can be adjusted axially, and hermetically, to a first end of a body of a shock absorber in order to be able to regulate the hydraulic load of the shock absorber as well as guide the movement of the rod in a longitudinal direction. The solenoid valve includes a movable part that can be moved between an open fluid flow position and another closed fluid flow position, a regulating chamber that generates a pressure to move said movable part towards the opening and an elastic element that generates a closing force. Likewise, the solenoid valve also includes electronic means to exert a force on the movable part, to move it in the direction of movement, preferably by means of a magnetic load. The invention also includes a shock absorber with hydraulic load regulation that comprises a solenoid valve, like the one mentioned, adjusted hermetically to a first end of the body of said shock absorber.

公开(公告)号：US12066075B2

公开(公告)日：2024-08-20

申请号：US17417463

申请日：2019-12-20

Applicant: HITACHI ASTEMO, LTD.

Inventor： Fumiyuki Yamaoka ,  Joji Endo

IPC: F16F9/18 ,  B60G13/08 ,  B60G17/08 ,  F16F9/34 ,  F16F9/348 ,  F16F9/516

CPC classification number: F16F9/18 ,  F16F9/34 ,  F16F9/348 ,  F16F9/516 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2204/62 ,  B60G2206/41 ,  B60G2500/104 ,  B60G2500/114 ,  B60G2600/182 ,  B60G2600/21 ,  B60G2800/162 ,  B60G2800/916 ,  F16F2222/12 ,  F16F2228/066 ,  F16F2230/183 ,  F16F2232/08 ,  F16F2234/02

Abstract: A shock absorber includes: a cylinder; a piston slidably inserted into the cylinder; a piston rod connected to the piston and extending outside the cylinder; a main valve that generates a damping force; a pilot chamber that applies pressure to the main valve; an introduction passage that introduces the fluid into the pilot chamber; a pilot passage that communicates the pilot chamber and a downstream side of the main valve with each other; and a control valve provided in the pilot passage. In an upstream side of the pilot passage from the control valve, the pilot passage is provided with a first orifice, a first passage provided in parallel with the first orifice, a first check valve that is opened at a predetermined differential pressure and allows a flow toward the control valve through the first passage, and a second orifice.