초록 ▼

A fuel system for an internal combustion engine includes a pumping apparatus having a high pressure pump to which fuel is supplied by a low pressure pump. The low pressure pump draws fuel through a filter unit from a fuel tank. A reservoir chamber is provided above the apparatus and this in use is r

A fuel system for an internal combustion engine includes a pumping apparatus having a high pressure pump to which fuel is supplied by a low pressure pump. The low pressure pump draws fuel through a filter unit from a fuel tank. A reservoir chamber is provided above the apparatus and this in use is replenished with fuel through an inlet. The chamber has a restricted outlet communicating with the fuel inlet of the pumping apparatus. In the event that air is drawn into the system in sufficient quantity to stop the engine as for example if the fuel tank is drained of fuel, the fuel in the reservoir chamber flows through the restricted outlet to the fuel inlet of the apparatus to enable the engine to be restarted quickly.

대표청구항 ▼

A fuel system for an internal combustion engine comprising a fuel pumping apparatus incorporating high and low pressure pumps, a fuel filter unit through which fuel is drawn by the low pressure pump from a fuel supply tank, the fuel being supplied by the low pressure pump to the high pressure pump,

A fuel system for an internal combustion engine comprising a fuel pumping apparatus incorporating high and low pressure pumps, a fuel filter unit through which fuel is drawn by the low pressure pump from a fuel supply tank, the fuel being supplied by the low pressure pump to the high pressure pump, a body defining inner and outer hollow cylindrical walls and end walls closing the upper and lower ends of said cylindrical walls, a fuel reservoir defined by the inner cylindrical wall, said fuel reservoir chamber being disposed in use, above the pumping apparatus and having a restricted outlet defined in said inner cylindrical wall adjacent the lower end thereof, said restricted outlet communicating with the annular space defined between said cylindrical walls, an outlet for connection to the pumping apparatus adjacent the lower end of said outer cylindrical wall to put said restricted outlet in communication with the inlet of the low pressure pump, and an inlet for connection to the fuel filter unit adjacent the upper end of said outer cylindrical wall and an inlet to the reservoir chamber adjacent the upper end of said inner cylindrical wall to maintain said chamber full of fuel during use of the apparatus.