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公开(公告)号：US10690217B2
公开(公告)日：2020-06-23
申请号：US16046801
申请日：2018-07-26
发明人： Yinko I. Grajeda
摘要： An assembly for magnetically dynamic damping useful for isolating vibrational forces includes a housing wall bounding a main chamber therein. The assembly further includes a fixed magnetic source disposed in the main chamber. A diaphragm of elastic material is disposed in the assembly impermeably dividing the main chamber into sub-chambers. The diaphragm includes a magnetically actuated element adjacent to the fixed magnetic source. A source of electrical current energizes the magnetically actuated element, the fixed magnetic source, or both and either repels or pulls the magnetically actuated element with respect to the fixed magnetic source. A magnetic guide surrounds the fixed magnetic source and defines a gap exposing the fixed magnetic source to the magnetically actuated element. The magnetic guide routes the magnetic field towards the gap and prevents outward magnetic interference to the rest of the assembly.
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公开(公告)号：US10670107B2
公开(公告)日：2020-06-02
申请号：US15843546
申请日：2017-12-15
发明人： Piotr Andrzej Flacht
摘要： A hydraulic damper for a vehicle including a main tube. A first piston assembly is slideably disposed in the main tube and axially divides the main tube into a rebound chamber and a primary compression chamber. A hydraulic compression stop assembly is disposed in the primary compression chamber and includes a narrowed section extending between an open end and a closed end. A second piston assembly is slideably disposed in the narrowed section and is coupled with the first piston assembly. The second piston assembly has a piston tube that extends between an opened end and a shut end. A displaceable partition is slideably disposed in the piston tube. A first auxiliary compression chamber is defined between the partition and the closed end of the narrowed section. A second auxiliary compression chamber is defined between the partition and the shut end of the piston tube.
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公开(公告)号：US10578183B2
公开(公告)日：2020-03-03
申请号：US15841224
申请日：2017-12-13
发明人： Marian Sikora , Witold Palka
摘要： Disclosed is a motor vehicle twin-tube damper comprising: a tube filled with a working liquid, a piston assembly disposed slidably inside the tube divides the tube into a rebound chamber and a compression chamber. A compensation chamber is located outside of the tube. A base valve assembly including a rebound valve assembly and a compression valve assembly controls the flow of the working liquid between the compensation chamber and the compression chamber. The rebound valve assembly includes a number of rebound flow channels covered by a main deflective disc. To suppress vibrations generated by the deflective disc due to pressure fluctuations occurring during rapid changes of the damper stroke direction, the rebound valve assembly includes an additional deflective disc disposed over the main deflective disc and separated from it by an annular gap with a thickness (G) that is less than the thickness of the main deflective disc.
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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：US20190186584A1
公开(公告)日：2019-06-20
申请号：US15843546
申请日：2017-12-15
发明人： Piotr Andrzej Flacht
摘要： A hydraulic damper for a vehicle including a main tube. A first piston assembly is slideably disposed in the main tube and axially divides the main tube into a rebound chamber and a primary compression chamber. A hydraulic compression stop assembly is disposed in the primary compression chamber and includes a narrowed section extending between an open end and a closed end. A second piston assembly is slideably disposed in the narrowed section and is coupled with the first piston assembly. The second piston assembly has a piston tube that extends between an opened end and a shut end. A displaceable partition is slideably disposed in the piston tube. A first auxiliary compression chamber is defined between the partition and the closed end of the narrowed section. A second auxiliary compression chamber is defined between the partition and the shut end of the piston tube.
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公开(公告)号：US10247272B2
公开(公告)日：2019-04-02
申请号：US15623859
申请日：2017-06-15
摘要： A hydraulic damper assembly including a housing that extends about and along an axis and defines an interior wall and a chamber for holding a fluid. A piston assembly is disposed in the chamber and axially moveable therein. The piston assembly includes a core. A wear band is disposed about the core and has an inside surface and an outside surface. The inside surface of the wear band defines at least one groove in fluid communication with the chamber for allowing the fluid to bias the wear band toward the interior wall of the housing during the passage of the fluid though the at least one groove during movement of the piston assembly.
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公开(公告)号：US20190077243A1
公开(公告)日：2019-03-14
申请号：US16045653
申请日：2018-07-25
发明人： Yinko I. Grajeda , Michael W. Hurtt
IPC分类号： B60K5/12
摘要： A hydraulic mount apparatus comprises a housing having an upper portion and a lower portion and defining a housing chamber. A partition member disposed therein and divides the housing chamber into a pumping chamber and a receiving chamber. A decoupler including a magnetic actuator is attached to the partition member. A moving member is disposed in the pumping chamber and attached to the decoupler. The moving member includes at least two magnetic inserts disposed therein, spaced from one another, to move the moving member from a first position to a second position in response to a magnetic field. The first position is defined as the moving member being spaced from the decoupler. The second position is defined as the moving member being attached to the decoupler.
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公开(公告)号：US10221913B2
公开(公告)日：2019-03-05
申请号：US15597060
申请日：2017-05-16
发明人： Mateusz Jasinski
摘要： The present invention relates to a hydraulic damper for a motor vehicle, comprising a tube with a slidably piston assembly attached to an end of a piston rod that is led outside the tube through a rod guide. A protective cap surrounds a portion of the tube. A partially axially elastic protective tube is attached to the cap and surrounds it and the piston rod. The cap is a unitary plastic component and has an annular flange provided with locking means attaching it to the protective tube. The cap has a plurality of spaced axial ribs separated by axial slots and joining a cylindrical section of the cap with the flange. A plurality of auxiliary ribs join the axial ribs and the annular area of the axial slots is larger than the total annular area of the axial ribs and the auxiliary ribs combined.
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公开(公告)号：US10160303B2
公开(公告)日：2018-12-25
申请号：US15611679
申请日：2017-06-01
摘要： A control system for an active powertrain mount includes a control signal which is based on the input velocity of the chassis at the active powertrain mount. The control signal may be proportional to the input velocity or to the mount velocity, which is the difference between the input velocity of the chassis at the active powertrain mount and the output velocity of the powertrain component at the active powertrain mount. The input velocity of the chassis at the active powertrain mount may be determined by a controller based on the CG heave and the roll and pitch velocities of the chassis. The output velocity of the powertrain component at the active powertrain mount is determined by the controller by integrating an acceleration signal from a component accelerometer disposed on the powertrain component proximate to the active powertrain mount. Corresponding methods for controlling an active powertrain mount are also provided.
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公开(公告)号：US20180209506A1
公开(公告)日：2018-07-26
申请号：US15841224
申请日：2017-12-13
发明人： Marian Sikora , Witold Palka
摘要： Disclosed is a motor vehicle twin-tube damper comprising: a tube filled with a working liquid, a piston assembly disposed slidably inside the tube divides the tube into a rebound chamber and a compression chamber. A compensation chamber is located outside of the tube. A base valve assembly including a rebound valve assembly and a compression valve assembly controls the flow of the working liquid between the compensation chamber and the compression chamber. The rebound valve assembly includes a number of rebound flow channels covered by a main deflective disc. To suppress vibrations generated by the deflective disc due to pressure fluctuations occurring during rapid changes of the damper stroke direction, the rebound valve assembly includes an additional deflective disc disposed over the main deflective disc and separated from it by an annular gap with a thickness (G) that is less than the thickness of the main deflective disc.
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