Internal combustion engines and methods of operation
US4700542A · kind A · utility
34Cited by
11References
17Claims
0Family size
Inventor
Key dates
| Filing date | Aug 21, 1986 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Aug 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine apparatus and method of operation includes the monitoring of the exhaust gas temperature and air-fuel ratio on a continuing basis. The exhaust gas temperature is compared to a stored value and compression of the input air is varied to cause the exhaust gas temperature to equal the stored value. By minimizing the exhaust gas temperature increased engine efficiency can be realized. The invention may be embodied in a variety of engine configurations, including piston and turbine systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.