MIXED FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE, VEHICLE, AND MIXED FUEL SUPPLY METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

A mixed fuel supply system includes a dimethyl ether (“DME”) tank which stores DME, a DME supply path which supplies the DME and a light oil supply system. The DME supply path is connected to a transfer path between a feed pump and a fuel injection pump. The DME supply path includes a flow regulating valve, in which a supply amount QDME of the DME is approximately 10% of a total supply amount Qfuel of a fuel in weight ratio. The fuel is mixed in the transfer path and transferred to the fuel injection pump, and then injected from injectors.

主权项

1. A mixed fuel supply system for an internal combustion engine using a mixed fuel obtained by mixing a liquid fuel and a liquefied gas fuel, comprising:
a liquid fuel supply system including a liquefied gas fuel storage tank which stores the liquefied gas fuel, a transfer pump which transfers the liquid fuel, and a supply pump which supplies the liquid fuel to a fuel injection valve are connected by a transfer path, wherein the liquid fuel supply system further includes a liquefied gas fuel supply path connected to the transfer path between the transfer pump and the supply pump and supplies the liquefied gas fuel, and a flow regulating valve in the liquefied gas fuel supply path, wherein a supply amount of the liquefied gas fuel is regulated to be lower than half of a total supply amount of the mixed fuel in weight ratio by the flow regulating valve, and wherein the mixed fuel mixed in the transfer path is transferred to the supply pump, and injected from the fuel injection valve.