Fuel delivery system for a combustion engine
AssigneeTI Group Automotive Systems, L.L.C.
InventorLynwood F. Crary
Life of this patent
Estimating the term…
Abstract
A fuel delivery system with at least one fuel tank and at least two fuel chambers has a fuel transfer assembly preferably integrated into an in-tank fuel pump module for controlling fuel levels between the at least two fuel chambers. The fuel transfer assembly has a transfer jet which receives pressurized fuel from a fuel pump of the module and at least two control valves for dictating the source of low pressure fuel flowing into the transfer jet and discharged therefrom preferably into a fuel reservoir of the module. Preferably, one control valve is located in each fuel chamber. The control valve opens upon a pre-established high fuel level and closes upon low fuel level. The fuel chamber containing the open control valve is generally the source of fuel for the fuel pump module.
Claims26
A fuel delivery system for supplying liquid fuel to at least one combustion engine, the fuel delivery system comprising:
- at least one fuel tank;
- a first fuel chamber defined by the at least one fuel tank;
- a second fuel chamber defined by the at least one fuel tank;
- a first fuel pump having an inlet communicating with the first fuel chamber and a pressurized outlet communicating with the at least one combustion engine;
- a fuel transfer conduit having a first end disposed in the first fuel chamber and a second end disposed in the second fuel chamber, wherein the second end is not disposed at the highest elevation of the transfer conduit;
- a first transfer jet disposed in the first fuel chamber, the first transfer jet having a high pressure inlet communicating with the outlet of the first fuel pump, a low pressure inlet communicating continuously with the first end and communicating intermittently with the first fuel chamber and an outlet communicating with the first fuel chamber;
- and
- a first control valve disposed in the first fuel chamber, the first control valve having an inlet port communicating with the first fuel chamber, an outlet port and a transfer port, wherein the first control valve is constructed and arranged to isolate the inlet port from the outlet and transfer ports upon low fuel level in the first fuel chamber.
A fuel delivery system supplying liquid fuel to at least one combustion engine of a vehicle, the fuel delivery system comprising:
- a first fuel tank;
- a second fuel tank;
- a first fuel pump having an inlet communicating with the first fuel tank and a pressurized outlet communicating with the vehicle conduit;
- a first transfer jet having a high pressure inlet communicating with the pressurized outlet, a fuel outlet communicating with the first fuel tank and a low pressure inlet;
- a first control valve located in the first fuel tank and having a first inlet port constructed and arranged to open upon high fuel level in the first fuel tank, a first outlet port communicating with the low pressure inlet and a first transfer port;
- and
- a second control valve located in the second fuel tank and having a second inlet port constructed and arranged to open upon high fuel level in the second fuel tank and a second transfer port communicating with the first transfer port.
Dependencies are inferred from the claim text.