Systems and methods for purging fuel in a combustion engine
US12215640B2 · kind B2 · utility
0Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jun 17, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine system is described herein. The system uses compressed air from a compressor to purge at least a portion of a fuel from an internal combustion engine. During a purge operation, a controller opens and closes an injector of the fuel to be purged to allow the compressed air from the compressor to push at least a portion of the fuel back into a fuel tank through the injector. The controller deenergizes a fuel pump that pumps the fuel to be purged, allowing the pressure of the fuel that is to be purged to reduce to a pressure that allows the compressed air to flow into the injector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.