Composite cycle engine
US3961483A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1975 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Jul 3, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses an engine with 25 to 70% better overall efficiency with exhaust emissions within present EPA 1975 standards. The vane type rotary engine uses exhaust from a multichamber Otto cycle engine to power a Stirling cycle engine on the same shaft. Fuel burned in the high surface to volume ratio chambers in the Otto cycle produce very little NO.sub.2 + N.sub.0 gas while producing excessive amounts of unburned hydrocarbons. Air injection into the extremely hot exhaust gases characteristic of the vane type engine is used in a hot wall continuous burning afterburner to remove unburned hydrocarbons and boost the temperature prior to the Stirling cycle hot side heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.