公开(公告)号：US11603900B2

公开(公告)日：2023-03-14

申请号：US17075807

申请日：2020-10-21

Applicant: SHOWA CORPORATION

Inventor： Gota Nakano ,  Chikara Yanagisawa

IPC: F16F9/46 ,  F16F9/18 ,  B60G13/08 ,  F16F9/348 ,  F16F9/34 ,  F16F9/516 ,  B60G17/08 ,  F16F9/512

Abstract: A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; a valve configured to control a flow of the liquid in the flow passage; a back pressure control valve configured to control a pressure in a back pressure chamber that provides a back pressure to the valve by inflow of the liquid; and an accommodation part that is in a tubular shape with one side opening end narrower than another side opening end, forms the back pressure chamber, and accommodates at least the valve and the back pressure control valve.

公开(公告)号：US11466747B2

公开(公告)日：2022-10-11

申请号：US17074143

申请日：2020-10-19

Applicant: SHOWA CORPORATION

Inventor： Gota Nakano ,  Chikara Yanagisawa

IPC: F16F9/46 ,  F16F9/18 ,  F16F9/34 ,  B60G13/08 ,  B60G17/08 ,  F16F9/348 ,  F16F9/516 ,  F16F9/512

Abstract: A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; and a valve that is configured to control a flow of the liquid in the flow passage. The flow passage formation part includes a first seat part that is provided radially outward of a flow passage port of the flow passage, protrudes from the flow passage port and contacts the valve, a second seat part that is provided radially outward of the first seat part, protrudes from the flow passage port and contacts the valve, and a circulation part having an orifice that allows the liquid to flow from the flow passage port toward the second seat part in a state in which the valve is in contact with the first seat part.