Engine and drive system
US6691647B2 · kind B2 · utility
6Cited by
10References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jan 4, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Mar 23, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B61/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The engine comprises four open-ended curved cylinders (10) disposed in torroidal arrangement with respect to a central pivot point (11). Two piston arms (12) are pivoted about the point (11) and carry at their ends four pistons (13). Each piston (13) has two faces so mounted to the piston arm (12) as to face tangentially one away from the other for alt mate engagement with adjacent ends of two of the cylinders (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.