Electronic control system for fuel system priming
US6817343B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Particularly in a relatively large engine that has been inactive for a substantial period of time at a cold temperature, the pressure within a fuel system may decrease. Prior to initiation of engine start-up, fuel pumps that are operably coupled to the engine cannot pressurize and/or circulate fuel within the fuel system. Thus, the time required to supply the high pressure lines with fuel pressure sufficient to start and maintain the engine can be unreasonably delayed. In order to decrease the delay in starting the engine, the present invention includes an electronic control module that includes a priming algorithm. The priming algorithm is operable to activate an electrically powered fuel pump when a fuel system is in an unprimed state. The electronic control module is in communication with at least one sensor that is operable to sense the state of the fuel system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.