To provide a fuel supply device capable of quickly grasping composition of new fuel in a fuel tank is replaced by the new fuel.
The fuel supply device is provided with a main tank 61 storing fuel, a sub tank 62 communicating to the main tank 61, a delivery pipe 65 communicating to all of fuel supply valves, a fuel supply pipe 64 and a fuel return pipe 66 communicated to the sub tank and the delivery pipe. Then, fuel in the sub tank is supplied to an engine main body via the fuel supply pipe and the delivery pipe, and fuel in the main tank of quantity same as fuel supplied to the engine main body is supplied into the main tank from the sub tank. Part of fuel in the sub tank and the delivery pipe is circulated via the fuel supply pipe and the fuel return pipe. Consequently, mixing ratio of existing fuel and new fuel in fuel in the sub tank and the delivery pipe is roughly homogenized.
COPYRIGHT: (C)2008,JPO&INPIT
JPS6170165 | FUEL FEEDING APPARATUS FOR ENGINE |
JP3834797 | IN-TANK TYPE FUEL PUMP DEVICE |
JP2010174693 | FUEL DELIVERY PIPE |
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi