Dual fuel e.g. gasoline, injection system for internal combustion engine of motor vehicle, has high pressure pump for pressurizing fuels, and injector injecting pressurized fuels into combustion chamber of engine

摘要

The system has a gasoline pump (1) for pumping liquid fuel e.g. gasoline, and a fuel pump (4) for pumping liquefied petroleum gas (LPG), respectively. A supply duct (26) supplies the liquid fuel from a gasoline tank (40) to the fuel pump, where the supply duct comprises a supply duct junction (33) connected to an outlet of the pump (1), to provide the LPG supplied by the fuel pump into the duct. A high pressure pump (12) downstream the gasoline pump pressurizes the fuel, and an injector (16) injects the pressurized fuels into a combustion chamber of an internal combustion engine.