US 12,403,738 B2
Fluid pressure shock absorber
Kazuki Hasegawa, Gifu (JP)
Assigned to KYB CORPORATION, Tokyo (JP)
Appl. No. 18/844,356
Filed by KYB Corporation, Tokyo (JP)
PCT Filed Mar. 1, 2023, PCT No. PCT/JP2023/007659
§ 371(c)(1), (2) Date Sep. 5, 2024,
PCT Pub. No. WO2023/171507, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 2022-035293 (JP), filed on Mar. 8, 2022.
Prior Publication US 2025/0236148 A1, Jul. 24, 2025
Int. Cl. B60G 13/08 (2006.01); B60G 17/015 (2006.01)
CPC B60G 17/0152 (2013.01) [B60G 13/08 (2013.01); B60G 2202/24 (2013.01); B60G 2204/62 (2013.01); B60G 2206/41 (2013.01); B60G 2400/60 (2013.01); B60G 2500/104 (2013.01); B60G 2500/114 (2013.01); B60G 2800/162 (2013.01); B60G 2800/916 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A fluid pressure shock absorber mounted on a vehicle, comprising:
a cylinder tube;
a rod inserted into the cylinder tube so as to be movable back and forth;
a piston connected to the rod and dividing an interior of the cylinder tube into a bottom-side chamber and a rod-side chamber;
a damping valve configured to impart resistance to a flow of working fluid between the bottom-side chamber and the rod-side chamber, the damping valve being capable of changing damping characteristic in response to a pilot pressure; and
a solenoid valve configured to switch supply and shut off of a pilot pressure to the damping valve, wherein
the working fluid in the bottom-side chamber or the rod-side chamber is used as the pilot pressure.