Linear free piston combustion engine with indirect work extraction via gas linkage
US8997699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/285
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Various embodiments of the present invention are directed toward a linear free piston combustion engine with indirect work extraction via gas linkage, comprising: a cylinder with two opposed free pistons disposed therein that form a combustion section in a center of the cylinder, each free piston comprising a front face facing the combustion section and a back face facing the opposite direction; two opposed extractor pistons disposed in their own cylinders at opposite ends of the free piston cylinder, each extractor piston comprising a front face facing the combustion section and a back face facing the opposite direction; and two gas linkages, each gas linkage comprising a volume sealed between the back face of a free piston and the front face of an extractor piston; wherein each extractor piston is connected to a rotary electromagnetic machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.