Integrated energy generating damper
US8841786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2013 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Feb 5, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2400/252
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of to the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.