Fuel system for a motor vehicle
AssigneeGM Global Technology Operations LLC
InventorsDale F. Klein, Manoharan Thiagarajan, William L. Villaire, Kristin M. DeMare, Edward J. Strzelecki, Jeffery J. Milton
Life of this patent
Estimating the term…
Abstract
A fuel system for a motor vehicle includes a fuel pump having a first pump outlet connectable to an engine fuel inlet and a second pump outlet, a fuel pump module including an internal volume, a fuel pump module outlet is arranged in the internal volume fluidically connected to the second pump outlet, and a fuel valve is fluidically connected to the second pump outlet. The fuel valve is operable to fluidically isolate the fuel pump from the fuel pump module when fuel in the internal volume reaches a selected fuel level.
Claims15
A fuel system for a motor vehicle comprising:
- a fuel pump including a first pump outlet connectable to an engine fuel inlet and a second pump outlet;
- a fuel pump module including an internal volume;
- a fuel pump module outlet arranged in the internal volume fluidically connected to the second pump outlet;
- and
- a normally open (NO) fuel valve fluidically connected to the second pump outlet, the NO fuel valve being operable to fluidically isolate the fuel pump from the fuel pump module when fuel in the internal volume reaches a selected fuel level.
A motor vehicle comprising:
- a body;
- an internal combustion engine mechanically supported to the body, the internal combustion engine including a fuel inlet;
- and
- a fuel system fluidically connected to the internal combustion engine, the fuel system comprising:
- a fuel pump including a first pump outlet connectable to an engine fuel inlet and a second pump outlet;
- a fuel pump module including an internal volume;
- a fuel pump module outlet arranged in the internal volume to fluidically connected to the second pump outlet;
- and
- a normally open (NO) fuel valve fluidically connected to the second pump outlet operable fluidically isolate the fuel pump from the fuel pump module when fuel in the internal volume reaches a selected fuel level.
A method of operating a fuel system for a motor vehicle comprising:
- activating a fuel pump including a first pump outlet and a second pump outlet;
- directing a first amount of fuel through the first pump outlet to an engine fuel inlet of an internal combustion engine;
- directing a second amount of fuel through the second pump outlet to a fuel pump module arranged in a fuel tank of the motor vehicle;
- detecting that fuel in the fuel pump module has reached a predetermined level;
- and
- fluidically isolating the fuel pump module from the second pump outlet by closing a normally open (NO) fuel valve when fuel is at the predetermined level.
Dependencies are inferred from the claim text.