Variable mode engine control
US12366215B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 9, 2024 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Aug 9, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/36
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed to improve fuel efficiency in which detonations within an internal combustion engine are controlled to reduce fuel consumption. Nominal detonations occur when the engine main bearing shaft rotates and initiates combustion within cylinder surrounding the main bearing shaft at various predetermined angles. The current invention utilizes a starter motor to maintain a minimal rotation speed of the main engine flywheel and deactivates all cylinder detonations except occasionally a single or paired set of cylinders to provide intermittent supplemental maintenance power. Further, fuel injectors are deactivated to non-firing cylinders so that when intake valves are opened no fuel enters the cylinders. Exhaust valves are also kept open to further reduce cylinder resistance pressure, thereby creating a “free-wheeling” state of the engine pending renewed acceleration. Intermittently, a single cylinder may be activated to assist in maintaining a minimum flywheel RPM value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.