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1. 发明公开

US20240309928A1 VIBRATION DAMPERS FOR A MOTOR VEHICLE 审中-公开
公开(公告)号：US20240309928A1
公开(公告)日：2024-09-19
申请号：US18606635
申请日：2024-03-15
申请人： thyssenkrupp Bilstein GmbH , thyssenkrupp AG
发明人： Lars SCHWEDLER
IPC分类号： F16F9/32 , F16F9/58
CPC分类号： F16F9/3221 , F16F9/3214 , F16F9/3228 , F16F9/585
摘要： A vibration damper for a vehicle includes a damper tube, a working piston and a rebound stop arrangement. The damper tube is filled with hydraulic fluid. The working piston is connected to a piston rod and is arranged such that it can be moved within the damper tube. An interior space of the damper tube is divided by way of the working piston into a first working space and a second working space. The rebound stop arrangement includes an additional piston (30) which is attached to the piston rod and encloses the piston rod concentrically. A sleeve-shaped rebound stop receptacle is attached to the damper tube for receiving the additional piston in the rebound stage. The rebound stop arrangement has a spring element which is arranged at least partially within the rebound stop receptacle. The spring element is fastened to the additional piston.

2. 发明公开

US20240280159A1 DOUBLE CHAMFERED HYDRAULIC COMPRESSION STOP SLEEVE 审中-公开
公开(公告)号：US20240280159A1
公开(公告)日：2024-08-22
申请号：US18380606
申请日：2023-10-16
申请人： BeijingWest Industries Co., Ltd.
发明人： Wojciech KLIMEK , Mateusz Szymon SARAPATA
IPC分类号： F16F9/58 , F16F9/16
CPC分类号： F16F9/58 , F16F9/16
摘要： A damper assembly with a hydraulic compression stop (HCS) includes a tube defining an interior chamber. The damper assembly also includes a piston assembly slidably disposed in the tube. The piston assembly includes an HCS piston. The HCS piston includes a piston extension with a piston ring disposed thereupon. The damper assembly also includes an HCS sleeve. The HCS sleeve includes an HCS body having a tubular shape and defining a chamfer opening for receiving the HCS piston. The HCS body defines a plurality of ribs extending radially inwardly from the chamfer opening and configured to guide the HCS piston apart from the chamfer opening as the HCS piston enters the HCS sleeve.

3. 发明授权

US11959526B2 Spring element, in particular jounce bumper, for a vehicle suspension 有权
公开(公告)号：US11959526B2
公开(公告)日：2024-04-16
申请号：US17595983
申请日：2020-06-03
申请人： BASF Polyurethanes GmbH
发明人： Josef Heidemann , Anthony Touzard
IPC分类号： B60G7/04 , F16F1/373 , F16F9/58
CPC分类号： F16F1/3732 , B60G7/04 , F16F9/58 , B60G2204/4502
摘要： A spring element, in particular a jounce bumper, for a jounce bumper assembly, contains a longitudinal axis, a base body extending along the longitudinal axis, and an end portion configured for being brought into contact with a vehicle part moving relatively to the spring element. The base body is elastically deformable between an uncompressed basic state and a compressed state in which the base body is at least partially compressed in the direction of the longitudinal axis. The end portion contains a circumferential outer surface, and at least one recess in the circumferential outer surface. The recess extends inwards and defines a hollow space in the base body.

4. 发明授权

US11773941B2 Hydraulic vibration damper having a rebound stop and a compression stop 有权
公开(公告)号：US11773941B2
公开(公告)日：2023-10-03
申请号：US17010477
申请日：2020-09-02
申请人： ThyssenKrupp Bilstein GmbH , thyssenkrupp AG
发明人： Georg Meinert , Holger Hennen , Klaus Schmidt , Ole Götz
IPC分类号： F16F9/49 , F16F9/18 , F16F9/346 , F16F9/348 , F16F9/36 , F16F9/58 , F16F13/00 , F16F9/512
CPC分类号： F16F9/49 , F16F9/185 , F16F9/3465 , F16F9/3484 , F16F9/364 , F16F9/585 , F16F13/007 , F16F9/512 , F16F2222/12 , F16F2224/025 , F16F2224/0208 , F16F2228/066 , F16F2230/007 , F16F2230/0052 , F16F2230/30 , F16F2232/08 , F16F2234/02
摘要： A hydraulic vibration damper may include inner and outer tubes filled with damping liquid, a piston rod projecting axially out of the inner tube and movable in rebound and compression directions, a sealing and guide pack that sealingly closes an end of the outer tube and guides piston rod movement, a working piston for producing damping forces that is fastened to the piston rod and is guided on an inner lateral surface of the inner tube and subdivides the interior of the inner tube into a piston rod-side and piston rod-remote working spaces. The vibration damper has rebound and compression stops. In the piston rod-remote working space, a compression stop, starting from a predetermined retraction travel of the piston rod, may produce a travel- and speed-dependent compression stop force.

5. 发明授权

US11761504B2 Piston cylinder device with protection arrangement and method of protecting a piston cylinder device against overload or failure of the piston cylinder device 有权
公开(公告)号：US11761504B2
公开(公告)日：2023-09-19
申请号：US17551619
申请日：2021-12-15
申请人： Strömholmen AB
发明人： Fredrik Göransson , Thomas Bergqvist
IPC分类号： F16F9/02 , B21D24/02 , F16F9/32 , F16F9/36 , F16F9/58
CPC分类号： F16F9/0218 , B21D24/02 , F16F9/0281 , F16F9/3214 , F16F9/3242 , F16F9/362 , F16F9/58 , F16F9/0236 , F16F2230/007 , F16F2230/0023 , F16F2230/24 , F16F2230/30
摘要： A piston cylinder device (1) comprising a cylinder (2) with a first and a second end and a guide (6), such that a pressure chamber (8) is formed in the cylinder. A piston (12) is moveable in the pressure chamber (8). The guide (6) is fixedly secured to the cylinder (2) by a lock ring (7). A sealing means (9) is arranged to seal between the guide (6) and an inner wall of a tubular wall (3) of the cylinder (2) to prevent fluid leakage from the pressure chamber (8) to the surroundings. The piston cylinder device (1) is provided with a material weakening zone (13) arranged in the inner wall of the tubular wall (3) of the cylinder (2) axially between the lock ring (7) and the second end (20) of the cylinder (2), the material weakening zone (13) being arranged to be deformed or sheared against the lock ring (7) at a predetermined level of impact of the piston (12) against the guide (6). A leakage gap (14) is arranged to interrupt the sealing means (9) upon deformation or shearing of the material weakening zone (13) such that gas from the pressure chamber (8) is allowed to leave the pressure chamber (8) through said leakage gap (14) to the surroundings.

6. 发明授权

US11685210B2 Jounce bumper assembly and suspension system 有权
公开(公告)号：US11685210B2
公开(公告)日：2023-06-27
申请号：US17904397
申请日：2021-02-22
申请人： BASF Polyurethanes GmbH
发明人： Sadiq Al-Dahhan
IPC分类号： B60G7/04 , F16F9/58
CPC分类号： B60G7/04 , F16F9/58 , B60G2204/45021 , B60G2206/73
摘要： A jounce bumper assembly can be used in a suspension system for an automotive vehicle. The assembly can contain a jounce bumper having a longitudinal axis, a bottom portion, and a tip portion spaced apart from the bottom portion in the axial direction, where the jounce bumper is resiliently deformable between an uncompressed basic state and an axially compressed state. The assembly can also contain a support member for supporting the jounce bumper, the support member having a wall section which can be arranged around the bottom portion and resiliently deformable with the jounce bumper in the axial and radial direction. The assembly can further contain at least one stiffening element associated to the wall section and configured to locally limit the radial deformation of the support member.

7. 发明申请

US20230135744A1 SHOCK ABSORBER 有权
公开(公告)号：US20230135744A1
公开(公告)日：2023-05-04
申请号：US18051877
申请日：2022-11-02
申请人： HL MANDO CORPORATION
发明人： Kwangduk BAEK , Seungjoon LEE
IPC分类号： F16F9/48 , F16F9/58 , F16F9/348 , F16F9/18
摘要： Disclosed herein is a shock absorber according to the present disclosure. According to an aspect of the present disclosure, provided is a shock absorber including a cylinder filled with a fluid and a piston valve coupled to an end of a piston rod and configured to partition an inside of the cylinder into a tension chamber and a compression chamber, the shock absorber including a support member coupled to an end of the cylinder and provided with a connection flow path, a first guide member forming a first pressing chamber and provided with a first flow path formed to vertically pass therethrough, a second guide member forming a second pressing chamber and having a second flow path configured to allow the second pressing chamber to communicate with the compression chamber, an opening/closing member provided at an end of the piston valve and provided to press the second guide member upon lowering the piston rod, a first elastic member provided between the first guide member and the support member, and a second elastic member provided between the first guide member and the second guide member.

8. 发明授权

US11536346B2 Shock absorber 有权
公开(公告)号：US11536346B2
公开(公告)日：2022-12-27
申请号：US16976695
申请日：2019-03-08
申请人： KYB Corporation
发明人： Gai Cho , Naoki Kubota , Masahiro Miwa
IPC分类号： F16F9/36 , F16F9/19 , F16F9/06 , B60G13/08 , F16F9/58
摘要： A shock absorber includes a bearing unit having a bearing and a bearing holding member, and a seal unit having a seal member and a seal holding member. The seal holding member includes a seal accommodating portion being configured to accommodate the seal member, and an insertion hole through which a piston rod is inserted. The seal member is pressed against an outer circumferential surface of the piston rod and the seal accommodating portion by working-fluid pressure in the extension-side chamber. And the bearing is provided such that a first end surface of the bearing facing the seal member matches an aperture plane of a through hole of the bearing holding member or such that the first end surface of the bearing projects out from the aperture plane of the through hole.

9. 发明申请

US20220364622A1 DUAL RATE JOUNCE BUMPER AND A VEHICLE COMPRISING THE SAME 有权
公开(公告)号：US20220364622A1
公开(公告)日：2022-11-17
申请号：US17754086
申请日：2020-09-24
申请人： BASF SE
发明人： Tomasz ZYLINSKI , Timothy J SMITH
IPC分类号： F16F1/371 , F16F9/58 , B60G11/54
摘要： A dual rate jounce bumper and a vehicle containing the dual rate jounce bumper are useful.

10. 发明授权

US11434967B2 Pressure buffer stop for a vibration damper 有权
公开(公告)号：US11434967B2
公开(公告)日：2022-09-06
申请号：US16308868
申请日：2017-06-22
申请人： THYSSENKRUPP BILSTEIN GMBH , thyssenkrupp AG
发明人： Alexander Ehinger , Amin Nezami
IPC分类号： F16F1/376 , F16F13/06 , B60G15/06 , F16F1/373 , F16F1/377 , F16F9/38 , F16F9/58 , F16F1/44
摘要： A pressure buffer stop for a vibration damper that comprises for being at least partially received in a dome bearing housing an outer contour and for coaxial arrangement on a piston rod of the vibration damper a hollow-cylindrical basic structure with an inner contour, wherein the outer contour of the pressure buffer stop comprises in at least one region for being at least partially received in the dome bearing housing a three-dimensionally structured surface.

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