초록 ▼

A fuel pump module constructed to be disposed in a vehicle fuel tank has a primary fuel pump with a fuel inlet disposed adjacent the bottom of the module and a fuel outlet which delivers pressurized fuel to an engine and also a jet pump disposed in a recess of the module and closely adjacent the bot

A fuel pump module constructed to be disposed in a vehicle fuel tank has a primary fuel pump with a fuel inlet disposed adjacent the bottom of the module and a fuel outlet which delivers pressurized fuel to an engine and also a jet pump disposed in a recess of the module and closely adjacent the bottom of the fuel tank to draw fuel into the module from the fuel tank in response to fuel flow through the jet pump. Disposing the jet pump in the recess of the module and closely adjacent to the bottom of the fuel tank enables the jet pump to draw substantially all of the fuel from the fuel tank into the module to ensure that the primary fuel pump can deliver an adequate supply of fuel to the engine even during extremely low fuel level conditions in the fuel tank. Disposing the inlet of the primary fuel pump closely adjacent to the bottom of the module and also the bottom of the fuel tank facilitates initial priming of the primary fuel pump after the fuel tank and module become empty and fuel is subsequently added to the fuel tank. Thus, after a vehicle has run out of gas, and the operator pours a small amount of gas into the gas tank, the primary fuel pump is able to prime, operate the jet pump to draw some of the added fuel into the module and deliver added fuel to the engine so that the engine may be started and the vehicle driven to a gas station.

대표청구항 ▼

[ What is claimed is:] [1.] A fuel pump module, comprising:a reservoir constructed to be disposed in a fuel tank having a bottom wall, said reservoir having a sidewall connected to a bottom wall to define a fuel reservoir, the bottom wall has a recess formed therein, and an opening immediately adjac

[ What is claimed is:] [1.] A fuel pump module, comprising:a reservoir constructed to be disposed in a fuel tank having a bottom wall, said reservoir having a sidewall connected to a bottom wall to define a fuel reservoir, the bottom wall has a recess formed therein, and an opening immediately adjacent the bottom wall of the fuel tank and permitting fuel to enter the fuel reservoir;a jet pump at least partially received in the recess formed in the bottom wall and constructed to draw fuel into the fuel reservoir through the opening; anda primary fuel pump carried by the reservoir and having an inlet through which fuel is drawn from the fuel reservoir and an outlet through which fuel is discharged under pressure, whereby the recess in the bottom wall permits the jet pump to be received closely adjacent to the bottom wall of the reservoir and the bottom wall of the fuel tank.