Dual fuel system having overflow buffer for hastening fuel switchover
US12359632B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2024 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jul 30, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/0025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dual fuel system for an internal combustion engine includes a plurality of fuel injectors, a first fuel pump and a first fuel conduit extending to the plurality of fuel injectors, and a second fuel pump and a second fuel conduit extending to a fuel manifold fluidly connected to the plurality of fuel injectors. The dual fuel system also includes an overflow buffer arranged to receive a volume of the second fuel expelled from the second fuel conduit, and a valve movable from a closed position to an open position fluidly connecting the overflow buffer to the second fuel conduit. Expelling fuel from the second fuel conduit enables a rapid pressure drop in a supply pressure of the second fuel to hasten switchover of the internal combustion engine between fuel type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.