Method and system for characterizing a port fuel injector
US9334824B2 · kind B2 · utility
7Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Various systems and methods are described for calibrating a port injector of a common fuel, dual injector per cylinder engine which includes first and second fuel rails and first and second fuel pumps. In one example, after pressurizing both fuel rails and suspending operation of the two pumps simultaneously, a single cylinder is fueled by a port injector while the remaining cylinders are fueled via their respective direct injectors. Fuel rail pressure drops are measured in the rail coupled to the port injector and correlated to port injector performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.