Engine system operating strategy apportioning fuel injection between upstream and downstream injection locations
US11384708B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2021 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0614
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Operating an engine includes injecting a liquid alcohol fuel such as methanol into a stream of compressed intake air at an upstream injection location, and injecting the liquid fuel at a plurality of downstream injection locations into a plurality of streams of the compressed intake air from an intake manifold to combustion cylinders in the engine. A fueling control unit apportions a total injected quantity of the liquid fuel between the upstream injection location and the plurality of downstream injection locations based on a temperature parameter of the compressed intake air. The compressed intake air is combusted with the liquid fuel and a compression ignition pilot fuel in the plurality of combustion cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.