Shock absorber
AssigneeKYB Corporation
InventorsKoichiro Awano, Takahisa Mochizuki, Masashi Uemura
Life of this patent
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Abstract
A shock absorber includes a hard-side damping element for applying resistance to a flow of liquid from a compression side chamber to an extension side chamber, a solenoid valve capable of changing an opening area of a compression side bypass passage for communicating the compression side chamber and the extension side chamber by bypassing the hard-side damping element, and a soft-side damping element provided in the compression side bypass passage in series with the solenoid valve. The hard-side damping element has an orifice and a leaf valve provided in parallel with the orifice. The soft-side damping element has an orifice having an opening area larger than that of the orifice.
Claims6
A shock absorber, comprising:
- a cylinder;
- a piston axially movably inserted into the cylinder and partitioning an inside of the cylinder into an extension side chamber and a compression side chamber;
- a piston rod connected to the piston and having one end projecting outside the cylinder;
- a hard-side damping element for applying resistance to a flow of liquid from the compression side chamber to the extension side chamber;
- a solenoid valve capable of changing an opening area of a bypass passage for communicating the compression side chamber and the extension side chamber by bypassing the hard-side damping element;
- and
- a soft-side damping element provided in the bypass passage in series with the solenoid valve, wherein
- the hard-side damping element has an orifice and a leaf valve provided in parallel with the orifice, and
- the soft-side damping element has a large-diameter orifice having an opening area larger than that of the orifice.
Dependencies are inferred from the claim text.