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公开(公告)号：US12270453B2
公开(公告)日：2025-04-08
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：USD956633S1
公开(公告)日：2022-07-05
申请号：US29753348
申请日：2020-09-30
Applicant: Hitachi Astemo, Ltd.
Designer： Daisuke Ikeda
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公开(公告)号：US12077242B2
公开(公告)日：2024-09-03
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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