Frequency/pressure sensitive shock absorber
US8978845B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Dec 26, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/5126
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A frequency/pressure sensitive shock absorber for generating a damping force varying according to a frequency and a pressure-includes: a cylinder filled with a working fluid; a piston rod having one end located inside the cylinder and the other end extending outward from the cylinder; a main piston valve assembly installed at one end of the piston rod and configured to operate in a state that the inside of the cylinder is divided into an upper chamber and a lower chamber, and generate a damping force varying according to a moving speed; and a sensitive unit installed at one end of the piston rod under the main piston valve assembly and configured to generate a damping force varying according to a frequency and a pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.