Shock absorber
US11988266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2020 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Mar 16, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2234/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber includes a hard-side damping element that gives resistance to a flow of liquid from an extension side chamber toward a compression side chamber, an electromagnetic valve capable of changing an opening area of an extension side bypass passage that bypasses the hard-side damping element and communicates the extension side chamber and the compression side chamber, and a soft-side damping element provided in the extension side bypass passage in series with the electromagnetic valve, in which the hard-side damping element includes an orifice and a leaf valve provided in parallel with the orifice, and in which the soft-side damping element includes an orifice having an opening area larger than an opening area of the orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.