| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel supply device enabled to change fuels that an injector injects.SOLUTION: An injector 30 injects and supplies a gaseous fuel supplied from a high-pressure fuel tank 11 and a liquid fuel supplied from a liquid fuel tank 12 to an engine 2. A fuel passage upstream from a valve seat that a valve body of the injector 30 is seated on and separated from and the liquid fuel tank 12 are linked to each other by a release passage 60. An ECU 70 opens a release valve 61 when a fuel in the fuel passage in the injector is discharged to the liquid fuel tank 12 and closes the release valve 61 when the injector 30 injects and supplies the fuel from a jet hole to the engine 2. A fuel supply device 1 can change the pressure of a gaseous fuel flowing in the fuel passage of the injector 30 and also can change the gaseous fuel and liquid fuel flowing in the fuel passage of the injector 30. |
