Dual-independent hybrid actuator system
US11092175B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Mar 23, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/1457
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dual-independent hybrid actuator system includes an actuator body defining a hydraulic chamber. The actuator system includes a hydraulic piston assembly, including a hydraulic piston disposed within the hydraulic chamber and dividing the hydraulic chamber into a first hydraulic sub-chamber in fluid communication with a first hydraulic fluid passage and a second hydraulic sub-chamber in fluid communication with a second hydraulic fluid passage. The actuator system further includes a piston rod mounted to the hydraulic piston that passes through the second hydraulic sub-chamber with a distal end that projects outward from the actuator body. The actuator system further includes an electric motor mounted to the actuator body, and a threaded axle mechanically coupled to a motor shaft of the electric motor. The threaded axle passes through the first hydraulic sub-chamber and engages with a threaded port formed in the hydraulic piston assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.