Ultra lean burn carburetted adiabatic engine
US4499872A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1983 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Jan 10, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved carburetted internal combustion engine (10) which operates with an extremely lean mixture, without a conventional cooling system, and at an elevated temperature characteristic of an adiabatic engine. The engine uses two ignition sources (20, 21) symmetrically disposed about the center of the cylinder head, and/or a third igniting and microwave coupling means (19) at the center, to achieve extreme lean mixture combustion and relatively fast burn necessary for adiabatic engine operation. The engine incorporates other features to improve its efficiency and emissions, including engine air-throttling through controlled intake valve closure and unconventional valve timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.