Abstract: Provided is a driver-integrated type BLDC fuel pump module, which is used in a vehicle and in which a driver used for controlling the operation of a BLDC fuel pump is installed in a flange of the BLDC fuel pump module, thus removing the spatial limit caused when the driver is installed and reducing the length of an electric wire electrically connecting the driver to a BLDC fuel pump of the module, thereby solving the problem of the operational performance of the BLDC fuel pump deteriorating as a result of both the voltage drop in the electric wire and a reduction in the operational efficiency of the pump.

Abstract: A fuel pressure controller used in a fuel supply device of an automobile has an open-close ball insertion groove formed to be protruding from a side of a valve pressing member. The valve pressing member has a predetermined open area in a circumferential direction and in a radial direction to prevent separation of an open-close ball even at the time of an operation, such that pressure may be accurately controlled and noise may be reduced.

Abstract: Provided is a driver-integrated type BLDC fuel pump module, which is used in a vehicle and in which a driver used for controlling the operation of a BLDC fuel pump is installed in a flange of the BLDC fuel pump module, thus removing the spatial limit caused when the driver is installed and reducing the length of an electric wire electrically connecting the driver to a BLDC fuel pump of the module, thereby solving the problem of the operational performance of the BLDC fuel pump deteriorating as a result of both the voltage drop in the electric wire and a reduction in the operational efficiency of the pump.

Abstract: Provided is a fuel pressure controller used in a fuel supply device of an automobile, and more particularly, is a fuel pressure controller in which an open-close ball insertion groove is formed to be protruded in one side direction within a valve pressing member formed to be opened by a predetermined area in a circumferential direction and in a radial direction to prevent separation of an open-close ball even at the time of an operation of a valve of the fuel pressure controller, such that pressure may be accurately controlled and noise may be reduced.

Abstract: A fuel pump for a vehicle comprises: a driving motor; an impeller having a substantially circular shape, the impeller being rotatable by operation of the driving motor; and a pump casing covered with a casing cover, the pump casing and casing cover together defining a central cavity for receiving the impeller rotatable therein, the pump casing and casing cover including a fuel inlet port and a fuel outlet port, the pump casing and casing cover each further including a circular groove formed along the surface thereof in respective fluid communication with the central cavity of the pump casing and casing cover.

Abstract: A fuel pump for a vehicle comprises: a driving motor; an impeller having a substantially circular shape, the impeller being rotatable by operation of the driving motor; and a pump casing covered with a casing cover, the pump casing and casing cover together defining a central cavity for receiving the impeller rotatable therein, the pump casing and casing cover including a fuel inlet port and a fuel outlet port, the pump casing and casing cover each further including a circular groove formed along the surface thereof in respective fluid communication with the central cavity of the pump casing and casing cover.

Abstract: An impeller for fuel pumps of automobiles, which maximizes the amount of fuel discharge of the fuel pumps by controlling the fuel inlet angle and the fuel outlet angle of the blades of the impeller, thus providing high operational pressures of the fuel pumps and improving operational performances of the fuel pumps, is disclosed. The impeller has a disc-shaped body, with a plurality of blades each having an inclined surface and provided around an outer edge of the disc-shaped body while being spaced out at regular intervals, and a plurality of impeller chambers defined between the blades while being vertically formed through the disc-shaped body to allow fuel to flow into and out of the chambers due to a high-speed rotating force of the impeller. The impeller further includes an inlet guide surface provided on each of the blades within a fuel inlet region of each of the impeller chambers, with a first angle defined between a vertical plane of the impeller and the inlet guide surface.

Abstract: An impeller for an automotive fuel pump, designed to minimize energy loss due to collision with fuel at fuel-inflow regions of blade chambers, is disclosed. The impeller includes a disk-shaped impeller body, a plurality of arched main blades radially provided at a peripheral area of the impeller body with arched blade chambers defined therebetween, and a plurality of arched auxiliary blades radially disposed between the main blades. Each of the blade chambers is provided at its inner side with an inner ridge portion defining upper and lower fuel-inflow regions and at its outer side with an outer ridge portion defining upper and lower fuel-outflow regions. The main and auxiliary blades are alternately arranged. The blade chambers are divided into arched sub-chambers by the auxiliary blades. Each of the auxiliary blades has a length shorter than that of each of the main blades and has a sharpened inner end.