Vane of vehicle fuel feed pump

Abstract

An impeller structure of a fuel supply pump for a vehicle is provided to minimize an energy loss and to enhance discharge efficiency of fuel, by improving a blade structure of an impeller. An impeller structure of a fuel supply pump for a vehicle comprises plural blades radially arranged to the circumference along the circumferential direction and plural blade chambers formed between the adjacent blades. The impeller comprises main blades(12) and auxiliary blades(14) alternately formed. The main blades and the auxiliary blades are radially arranged to the circumference along the circumferential direction with different length. A blade chamber(16), in which a fuel inlet area in the inward direction of the inner peripheral surface and a fuel outlet area in the outward direction are formed in a vertical symmetrical structure, is formed between the adjacent main blades. The auxiliary blade is extended from the middle outward direction of the blade chamber to the inward direction. The extended end of the blade is connected to the end of the fuel inlet area in a wedge shape. Passages spaced apart in the vertical direction are formed between the end of the auxiliary blade and the fuel inlet area. A blade groove(13) of an arc shape is formed between the main blade and the auxiliary blade.

Description

technical field [0001] The present invention relates to an impeller of a fuel supply pump for an automobile, more specifically, when fuel is sucked in from a fuel tank to supply an internal combustion engine (i.e. an engine), the energy loss caused by collision with blades in the process of sending out fuel through the impeller is minimized, and the improvement is improved. The impeller of the automotive fuel pump for fuel discharge efficiency. Background technique [0002] Generally, the main purpose of a fuel pump mounted on a vehicle is to efficiently supply fuel drawn from a fuel tank to an engine. [0003] like figure 1 As shown, the composition of such an oil supply pump 100 includes: an impeller 300 rotatably installed inside a turbine pump housing 200 of a given shape; a drive motor 400 for rotating the impeller 300; Rotary force intakes and discharges fuel to the check valve 500 . [0004] In addition, if figure 2 As shown, the impeller 300 installed on the abo...

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Problems solved by technology

[0006] However, in such a conventional impeller 300, since the vanes 320 formed on the peripheral portion thereof are uniformly arranged, the fuel flowing inward of the vane chamber 340 along the pipeline 220 of the turbo pump housing 200 during the fuel discharge process is not as good as the vane chamber 340. The blades 320 collide continuously, resulting in energy loss, resulting in a decrease in the discharge efficiency of the fuel and a problem that the smooth output cannot be achieved.

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