Multiple pump fuel delivery system
AssigneeMillennium Industries Corp.
InventorMichael J. Zdroik
Life of this patent
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Abstract
A multiple pump fuel delivery system is provided, which in one preferred embodiment includes a tank. Mounted within the tank are multiple fuel pumps. The fuel pumps have intakes connected to filters. One pump may be connected to a fuel only passing filter, and another pump may be connected with a fuel-water mixture passing filter. Fuel from the outlets of the pumps is delivered past non-return check valves through a manifold. The manifold is connected with a pressure regulator valve, which is fluidly communicative with the engine of the vehicle. A relief outlet is also provided to return excess fuel.
Claims31
A multiple fuel pump delivery system for a vehicle with an internal combustion engine, comprising:
- a fuel tank;
- a fuel reservoir fluidly communicative with said fuel tank via a differential pressure valve;
- a first electrically powered fuel pump connected within said reservoir;
- at least a second electrically powered fuel pump connected within said reservoir;
- a first check valve fluidly communicative with an outlet of said first fuel pump;
- a second check valve fluidly communicative with an outlet of said second fuel pump;
- a pressure regulator valve fluidly communicative with said first and second check valves, said pressure regulator valve having a first pressure regulated outlet fluidly communicative with said internal combustion engine and a second relief outlet, fluidly communicative with said reservoir.
A multiple pump fuel delivery system for a vehicle with an internal combustion engine comprising:
- a fuel tank;
- a first electrically powered fuel pump fluidly communicative with said fuel tank;
- at least a second electrically powered fuel pump fluidly communicative with said fuel tank;
- a pressure regulator valve fluidly communicative with said first and second fuel pumps for delivering pressure regulated fuel to said engine, said pressure regulator valve having a relief outlet for returning excess fuel to said fuel tank;
- a water separating filter fluidly communicative with said tank and with an inlet of said first pump;
- and
- a water passing filter, fluidly communicative with said tank and with an inlet of said second pump.
A multiple pump fuel delivery system for a vehicle with an internal combustion engine comprising:
- a fuel tank;
- a fuel reservoir fluidly communicative with said fuel tank;
- a first electronically powered fuel pump connected with said reservoir;
- at least a second electrically powered fuel pump connected with said reservoir;
- a pressure regulator valve fluidly communicative with said first and second fuel pumps for delivering pressure regulated fuel to said engine, said pressure regulator valve having a relief outlet for returning excess fuel to said reservoir;
- a first water separating filter medium fluidly communicative with said tank and with an inlet of said first pump;
- and
- a second water passing filter medium, fluidly communicative with said tank and with an inlet of said second pump.
A multiple pump fuel delivery system for a vehicle with an internal combustion engine comprising:
- a fuel reservoir;
- a first electrically powered fuel pump;
- at least a second electrically powered fuel pump;
- a first water separating filter medium having a lower surface exposed to the fuel tank and an upper surface having a portion fluidly communicative with an inlet of said first pump, said first filter medium forming a pressure boundary for said reservoir;
- a second water passing filter medium having a lower boundary forming a pressure boundary for said reservoir and being fluidly communicative with said second pump;
- a pressure regulator valve with a pressure regulated outlet fluidly communicative with said internal combustion engine and a relief outlet fluidly communicative with said reservoir above said first and second filter mediums.
Dependencies are inferred from the claim text.