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公开(公告)号：US20220097796A1
公开(公告)日：2022-03-31
申请号：US17546205
申请日：2021-12-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA
Abstract: A shock absorber includes a first damping force generating portion which is fixed to a first end portion of a cylinder in an axial direction thereof, a second damping force generating portion which is disposed to be movable in the axial direction in the cylinder. The second damping force generating portion includes a first flow path which passes through a piston in the axial direction, the piston partitioning a space inside the cylinder, a first valve which opens and closes the first flow path, a first adjustment unit which adjusts a force required to open the first valve, a second flow path which is located at a different position from the first flow path and passes through the piston in the axial direction, a second valve which opens and closes the second flow path, and a second adjustment unit which adjusts a force required to open the second valve.
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公开(公告)号：US20220097794A1
公开(公告)日：2022-03-31
申请号：US17547130
申请日：2021-12-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA
Abstract: A shock absorber includes a cylinder, a rod, a first damping force generating portion, and a second damping force generation portion. The second damping force generating portion includes a flow path which passes through the piston in the axial direction, a valve which opens and closes an opening portion at the second end portion side of the flow path, and an adjustment unit which adjusts a force required to open the valve from an outer side of the rod.
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公开(公告)号：US20220097795A1
公开(公告)日：2022-03-31
申请号：US17546456
申请日：2021-12-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA
Abstract: A shock absorber includes a first damping force generating portion, and a second damping force generating portion. The second damping force generating portion includes a first flow path, an opening and closing member, an adjustment unit which adjusts a position of the opening and closing member in the axial direction, a second flow path which is located at a different position from the first flow path and passes through the piston in the axial direction, and a second valve which is disposed at an end portion of the second flow path at a side of a second end portion which is an end portion at an opposite side to the first end portion in the axial direction, and which opens and closes the second flow path.
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公开(公告)号：US20220163086A1
公开(公告)日：2022-05-26
申请号：US17340668
申请日：2021-06-07
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA , Nao KADOTA
Abstract: A shock absorber includes a hollow cylinder body extending in an up-down direction, a rod pipe located on an axis of the cylinder body, provided to be relatively movable in an axial direction of the cylinder body with respect to the cylinder body, and provided in a form of receiving a force in the axial direction, a rod-shaped support body extending inside the rod pipe with an upper end fixed, a stroke sensor including a coil and a conductor provided to be able to detect relative displacement of the rod pipe with respect to the support body, and a hollow intermediate member provided between the inner peripheral surface of the rod pipe and the support body to allow movement in the axial direction.
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