Dual fuel natural gas/diesel 2-stroke engine
US5035206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Jul 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dual fuel, natural gas/diesel two-stroke engine includes a cylinder and a piston in the cylinder, and inlet ports around the cylinder which are uncovered by downward movement of the piston. A blower forces air through the inlet ports when the latter is uncovered, and the engine includes an exhaust port and valve for exhausting combustion gases once each cycle. Diesel injection takes place near top dead center to ignite the gaseous mixture. An injector is provided for injecting natural gas into the cylinder once each cycle, including a delivery conduit which opens into the cylinder at a location above the inlet ports for air, such that the piston when descending completely uncovers the conduit before beginning to uncover the air inlet ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.