Energy recovery device
US4346787A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1980 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | May 9, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03G1/026
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The energy recovery device includes a housing having a central shaft which is connected to a lever operating a work-load system capable of generating work-load forces. The central shaft is also connected to a disk having four posts generally parallel to the shaft and initially located at positions corresponding to the four major points of a compass. Within each corner of the housing, a helically coiled spring is positioned over a support post. Each spring has two extending arms which contact two respective adjacent posts on the disk so as to maintain the spring under tension. When the lever is at the neutral position, i.e., when no work-load forces are generated, the recovery forces generated by the four springs within the housing are generally balanced. As the lever is displaced from the neutral position by a driving force, the disk rotates whereby the angular displacement between the arms of any spring decreases. Once the disk is displaced, the spring forces aid in continuing displacement of the disk. Simultaneously the work-load system generates forces which oppose any displacement. The springs are preferably configured and dimensioned so that, at any given displacement of the l…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.