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US 2012/0257956 A1Published application
Turbine Fuel Pump for Vehicle
AssigneeCoavis
InventorHyuntae LEE
Life of this patent
Estimating the term…
Abstract
Provided is a turbine fuel pump for a vehicle. More particularly, provided is a turbine fuel pump for a vehicle that can improve efficiency of the fuel pump and solve pressure instability caused by collision of fuel by forming a separate independent channel in a lower casing, an impeller, and an upper casing where channels of fuel are formed at the time of suctioning fuel from the fuel tank and supplying fuel to an engine of an internal combustion engine.
Claims2
A turbine fuel pump for a vehicle, comprising:
- an upper casing 100 including an upper channel groove 120 formed in a lower surface thereof so as to allow fuel to flow therethrough and a fuel discharge port 110 connected to the upper channel groove 120, formed to penetrate through upper and lower surfaces thereof, and discharging the fuel therethrough;
- a lower casing 300 joined to a lower part of the upper casing 100 and including a lower channel groove 320 formed in an upper surface thereof so as to allow the fuel to flow therethrough and a fuel suction port 310 connected to the lower channel groove 320, formed to penetrate through upper and lower surfaces thereof, and introducing the fuel thereinto;
- and
- an impeller 200 provided between the upper casing 100 and the lower casing 300, having a disk shape, and including a plurality of blades 230 formed along an outer circumferential surface in an outer direction of the outer circumferential surface and blade chambers 240 each formed between the blades 230 so as to penetrate through upper and lower surfaces thereof to allow the fuel to be discharged and introduced in upper and lower parts of the blades 230, respectively,
- wherein the upper casing 100 includes an upper inner channel 140 formed to be spaced apart from a shaft penetration hole 130 formed at the center thereof by a predetermined distance and penetrate through the upper and lower surfaces thereof, the impeller 200 includes an impeller channel 260 formed to be spaced apart from a shaft fixation hole 220 formed at the center thereof by a predetermined distance and penetrate through the upper and lower surfaces thereof, and the lower casing 300 includes a lower inner channel 340 formed at the center of the upper surface thereof and a lower connection groove 350 connecting the lower inner channel 340 and the lower channel groove 320 to each other, such that a separate channel is formed so that the fuel suctioned into the fuel suction port 310 flows along the lower channel groove 320 by rotation of the impeller 200, is introduced into the lower inner channel 340 through the lower connection groove 350, and passes through the impeller channel 260 to be discharged through the upper inner channel 140.
2 more elements
Dependencies are inferred from the claim text.