Shock absorber
US9534652B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber includes a push rod, a first piston, a cylinder, a piston rod, a second piston, and a third piston. The cylinder and the first piston cooperatively define a first oil cavity. The second piston, the first piston, and the cylinder cooperatively define a second oil cavity. The third piston and the cylinder cooperatively define a gas cavity. The first piston is configured to urge the hydraulic oil of the second oil cavity to flow into the first oil cavity and the third oil cavity in event the push rod is pushed. The third piston is configured to compress the gas in the gas cavity in event the third piston is urged toward the gas cavity, thereby creating a damping effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.