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公开(公告)号：US20190271371A1
公开(公告)日：2019-09-05
申请号：US16143405
申请日：2018-09-26
摘要： A piston assembly for a damper includes a main piston disposed on a center axis. A piston rod is attached to the main piston. A regulator extends between the piston rod and the main piston defining a compartment. The regulator has at least one first aperture and at least one second aperture. A restrictor divides the compartment into a first and second portion. An actuator having a core is disposed in the first portion movable between an opened and a closed position. The restrictor includes a sleeve disposed in the compartment and attached to the regulator. The sleeve defines a hole in fluid communication with the first and second portions and flares outwardly in the first portion toward the regulator to define a slanted edge extending at an oblique angle relative to the center axis to allow the working fluid to flow smoothly thereby limiting noises generated.
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公开(公告)号：US10393210B2
公开(公告)日：2019-08-27
申请号：US15787693
申请日：2017-10-18
摘要： A hydraulic damper includes a piston rod attached to a slidable piston assembly having a hollow housing with first and second valve assemblies disposed therein and each including a valve body and rebound and compression discs for regulating flow of a working fluid through the piston assembly. The first valve assembly is disposed about a sleeve with a valve nut securing them within the housing. The second valve assembly is threadedly secured in the housing, with a pin holding it together. The housing including a coil and an armature, axially slidable through a plunger guide with a spring biasing the armature to a first position with fluid allowed to flow through the sleeve to bypass the first valve. The armature slides to a second position with fluid not bypassing the first valve in response to the coil being energized by an electrical cable which extends through the piston rod.
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公开(公告)号：US20180163813A1
公开(公告)日：2018-06-14
申请号：US15892368
申请日：2018-02-08
CPC分类号： F16F9/516 , B60G13/08 , B60G15/061 , B60G17/08 , B60G2202/24 , B60G2500/10 , B60G2800/16 , F16F9/065 , F16F9/19 , F16F9/3214 , F16F9/34 , F16F9/3465 , F16F9/36 , F16F9/49 , F16F9/585 , F16F13/007 , F16F2228/066
摘要： A hydraulic suspension damper includes a tube having an opened end and a closed end defining a compartment. A main piston is disposed in the compartment dividing the compartment into a compression chamber and a rebound chamber. A piston rod is attached to the main piston. A rod guide is disposed at said opened end. A stroke stop arrangement includes an insert and an additional piston attached to the piston rod. The insert has a narrowed section including an inner surface defining at least one recess between the distal end and the rod guide and extends axially along the insert in fluid communication with the compression chamber for allowing working liquid flow from the rebound chamber to the compression chamber during the rebound stroke. The at least one recess includes three recesses disposed equidistantly and spaced from one another.
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公开(公告)号：US10746247B2
公开(公告)日：2020-08-18
申请号：US16143405
申请日：2018-09-26
摘要： A piston assembly for a damper includes a main piston disposed on a center axis. A piston rod is attached to the main piston. A regulator extends between the piston rod and the main piston defining a compartment. The regulator has at least one first aperture and at least one second aperture. A restrictor divides the compartment into a first and second portion. An actuator having a core is disposed in the first portion movable between an opened and a closed position. The restrictor includes a sleeve disposed in the compartment and attached to the regulator. The sleeve defines a hole in fluid communication with the first and second portions and flares outwardly in the first portion toward the regulator to define a slanted edge extending at an oblique angle relative to the center axis to allow the working fluid to flow smoothly thereby limiting noises generated.
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公开(公告)号：US10107351B2
公开(公告)日：2018-10-23
申请号：US15892368
申请日：2018-02-08
IPC分类号： F16F9/49 , F16F9/516 , B60G17/08 , F16F9/58 , B60G13/08 , B60G15/06 , F16F9/19 , F16F9/36 , F16F13/00 , F16F9/346 , F16F9/32 , F16F9/34 , F16F9/06
摘要： A hydraulic suspension damper includes a tube having an opened end and a closed end defining a compartment. A main piston is disposed in the compartment dividing the compartment into a compression chamber and a rebound chamber. A piston rod is attached to the main piston. A rod guide is disposed at said opened end. A stroke stop arrangement includes an insert and an additional piston attached to the piston rod. The insert has a narrowed section including an inner surface defining at least one recess between the distal end and the rod guide and extends axially along the insert in fluid communication with the compression chamber for allowing working liquid flow from the rebound chamber to the compression chamber during the rebound stroke. The at least one recess includes three recesses disposed equidistantly and spaced from one another.
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公开(公告)号：US20170159743A1
公开(公告)日：2017-06-08
申请号：US15367301
申请日：2016-12-02
CPC分类号： F16F9/516 , B60G13/08 , B60G15/061 , B60G17/08 , B60G2202/24 , B60G2500/10 , B60G2800/16 , F16F9/065 , F16F9/19 , F16F9/3214 , F16F9/34 , F16F9/3465 , F16F9/36 , F16F9/49 , F16F9/585 , F16F13/007 , F16F2228/066
摘要： A hydraulic suspension damper includes a tube having an opened end and a closed end defining a compartment. A main piston is disposed in the compartment dividing the compartment into a compression chamber and a rebound chamber. A piston rod is attached to the main piston. A rod guide is disposed at said opened end. A stroke stop arrangement includes an insert and an additional piston attached to the piston rod. The insert has a narrowed section including an inner surface defining at least one recess between the distal end and the rod guide and extends axially along the insert in fluid communication with the compression chamber for allowing working liquid flow from the rebound chamber to the compression chamber during the rebound stroke. The at least one recess includes three recesses disposed equidistantly and spaced from one another.
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公开(公告)号：US20180142756A1
公开(公告)日：2018-05-24
申请号：US15787693
申请日：2017-10-18
CPC分类号： F16F9/466 , F16F9/348 , F16F9/463 , F16F2230/18
摘要： A hydraulic damper includes a piston rod attached to a slidable piston assembly having a hollow housing with first and second valve assemblies disposed therein and each including a valve body and rebound and compression discs for regulating flow of a working fluid through the piston assembly. The first valve assembly is disposed about a sleeve with a valve nut securing them within the housing. The second valve assembly is threadedly secured in the housing, with a pin holding it together. The housing including a coil and an armature, axially slidable through a plunger guide with a spring biasing the armature to a first position with fluid allowed to flow through the sleeve to bypass the first valve. The armature slides to a second position with fluid not bypassing the first valve in response to the coil being energized by an electrical cable which extends through the piston rod.
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公开(公告)号：US09909638B2
公开(公告)日：2018-03-06
申请号：US15367301
申请日：2016-12-02
IPC分类号： F16F9/49 , F16F9/516 , F16F9/19 , B60G13/08 , B60G15/06 , F16F9/36 , F16F13/00 , B60G17/08 , F16F9/06
CPC分类号： F16F9/516 , B60G13/08 , B60G15/061 , B60G17/08 , B60G2202/24 , B60G2500/10 , B60G2800/16 , F16F9/065 , F16F9/19 , F16F9/3214 , F16F9/34 , F16F9/3465 , F16F9/36 , F16F9/49 , F16F9/585 , F16F13/007 , F16F2228/066
摘要： A hydraulic suspension damper includes a tube having an opened end and a closed end defining a compartment. A main piston is disposed in the compartment dividing the compartment into a compression chamber and a rebound chamber. A piston rod is attached to the main piston. A rod guide is disposed at said opened end. A stroke stop arrangement includes an insert and an additional piston attached to the piston rod. The insert has a narrowed section including an inner surface defining at least one recess between the distal end and the rod guide and extends axially along the insert in fluid communication with the compression chamber for allowing working liquid flow from the rebound chamber to the compression chamber during the rebound stroke. The at least one recess includes three recesses disposed equidistantly and spaced from one another.
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