Double action piston assembly
US7942116B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Nov 12, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The double action piston assembly is for an internal combustion engine and has a combustion chamber that has a double action piston connected to one end of a central power rod disposed within the combustion chamber. A first intake air port and a first exhaust port are located in the up side of the combustion chamber. A compression chamber is connected to the combustion chamber. A central power rod passes through the combustion chamber into the compression chamber and out the compression chamber. A fuel mixture is fed into the combustion chamber and ignition means adjacent to combustion chamber to ignite the fuel mixture. At the end of each stroke, the compression exhaust valves are opened and the intake ports and the exhaust ports are open to permit air from the compression chamber to pass through the conduits into the combustion chamber for full scavenging of the combustion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.