Actuator system
US11084350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jan 13, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2228/066
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An actuator system for a vehicle suspension system including: an actuator having a piston and a first fluid chamber separated from a second fluid chamber by the piston; a hydraulic pump having a first port, a first hydraulic circuit operable to connect the first port to the first chamber, the first hydraulic circuit including a first valve, the first valve being a damper valve operable to variably restrict flow of hydraulic fluid out of the first chamber; a first hydraulic accumulator connected to a first gallery of the first hydraulic circuit between the first port and the first valve; a second hydraulic accumulator connected to a second port of the pump via a second gallery; and a second valve, the second valve being a variable pressure relief valve operable to variably restrict flow of hydraulic fluid from the first gallery to the second gallery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.