Abstract: A system for controlling fuel supply of a diesel engine, may include a fuel pump controller configured to set a fuel supply target pressure supplied from a low-pressure fuel pump to a high-pressure pump in proportion to a quantity of fuel consumed by an injector, and a fuel pressure measurement sensor configured to measure a current fuel supply pressure supplied from the low-pressure fuel pump to the high-pressure pump, wherein revolutions per minute (RPM) of a motor for feeding fuel of the low-pressure fuel pump may be variably adjusted in accordance with the fuel supply target pressure.

Abstract: A controller integrated fuel pump module for a vehicle, may include a reservoir cup configured to be fixed to an interior of a fuel tank, a fuel pump installed in an interior of the reservoir cup to pump fuel introduced into the interior of the reservoir cup, and a flange for fixing the reservoir cup and the fuel pump to the fuel tank, wherein a receiving part may be formed to an outer surface of the flange and may include an inner space, and wherein a printed circuit board (PCB) assembly configured to mount devices of a controller to a PCB may be molded in the receiving part, in a state in which the PCB assembly may be received in the receiving part, and a molding portion surrounds the PCB assembly in the receiving part.

Abstract: A device for reducing the temperature of a bombe, which stores liquefied petroleum gas (LPG) fuel and may be connected to a fuel supply line for supplying the fuel to an injector, using latent heat of LPG vaporization, may include a fuel pump installed in the bombe and connected to an end of the fuel supply line for pressurizing the fuel, a cut-off valve installed in the fuel supply line for selectively cutting off fuel supply to the injector, a fuel collection line branched from the fuel supply line to the inside of the bombe for collecting the supplied fuel into the bombe when the cut-off valve may be closed, and an injection nozzle connected to the fuel collection line and injecting the fuel collected through the fuel collection line into the inside of the bombe.

Abstract: A pressure sustaining system for an LPG bombe may include the LPG bombe, in which an LPG fuel may be injected and which may be equipped with a ventilation tunnel for emitting the air inside the LPG bombe, and a check valve unit, installed at an opening of the ventilation tunnel, with a fixed conversion pressure so as to keep an air pressure inside the LPG bombe above a predetermined value.

Abstract: An LPG bomb apparatus is provided, including: a fuel charging unit formed on a LPG bomb; a fuel conduit through which fuel flows from the fuel charging unit to a fuel pump; a first check valve that is formed on the fuel conduit inside the LPG bomb and sucks the fuel with a pressure of the fuel pump; and a second check valve that is formed on the fuel conduit inside the LPG bomb, is spaced apart from the first check valve, and discharges the fuel to be charged by the fuel charging unit to the LPG bomb.

Abstract: A system for controlling fuel supply of a diesel engine, may include a fuel pump controller configured to set a fuel supply target pressure supplied from a low-pressure fuel pump to a high-pressure pump in proportion to a quantity of fuel consumed by an injector, and a fuel pressure measurement sensor configured to measure a current fuel supply pressure supplied from the low-pressure fuel pump to the high-pressure pump, wherein revolutions per minute (RPM) of a motor for feeding fuel of the low-pressure fuel pump may be variably adjusted in accordance with the fuel supply target pressure.

Abstract: A controller integrated fuel pump module may include a receiving part formed on an outer surface of a flange assembled in a fuel tank, a PCB assembly configured by mounting elements of a controller to a PCB, wherein the PCB assembly is molded by a molding part while being received in the receiving part, and a convexo-concave portion having a shape in which recesses and bosses, the convexo-concave portion being repeatedly formed on an inner surface of the receiving part, such that a bonding force between the receiving part and the molding part is increased by the convexo-concave portion.

Abstract: A control method and system of a fuel pump for a vehicle are provided and include determining, by a controller, whether an accelerator pedal signal is rapidly increased and comparing, by a controller, a current control quantity of the fuel pump with a predetermined reference control quantity in response to determining that the accelerator pedal signal is rapidly increased. In addition, the controller is configured to set the control quantity of the fuel pump as a predetermined jump control quantity when the current control quantity is less than the predetermined reference control quantity.

Abstract: A controller integrated fuel pump module for a vehicle, may include a reservoir cup configured to be fixed to an interior of a fuel tank, a fuel pump installed in an interior of the reservoir cup to pump fuel introduced into the interior of the reservoir cup, and a flange for fixing the reservoir cup and the fuel pump to the fuel tank, wherein a receiving part may be formed to an outer surface of the flange and may include an inner space, and wherein a printed circuit board (PCB) assembly configured to mount devices of a controller to a PCB may be molded in the receiving part, in a state in which the PCB assembly may be received in the receiving part, and a molding portion surrounds the PCB assembly in the receiving part.

Abstract: An LPG bombe valve apparatus includes a valve body, a check valve, a cam, a cam rod and a converting mechanism. More specifically, the valve body is disposed in an LPG bombe and having a fuel channel therein for discharging fuel supplied from an LPG line to the LPG bombe. The check valve is disposed in the fuel channel, with one end supported by an elastic member to be pressed to close the fuel channel. The cam is disposed within the check valve, and the cam rod connects the cam with the check valve and controls opening/closing of the check valve in accordance with rotation of the cam. A converting mechanism has both ends connected to the cam and a float of the LPG bombe converting vertical motion of the float into rotational motion of the cam.

Abstract: An LPG bomb apparatus is provided, including: a fuel charging unit formed on a LPG bomb; a fuel conduit through which fuel flows from the fuel charging unit to a fuel pump; a first check valve that is formed on the fuel conduit inside the LPG bomb and sucks the fuel with a pressure of the fuel pump; and a second check valve that is formed on the fuel conduit inside the LPG bomb, is spaced apart from the first check valve, and discharges the fuel to be charged by the fuel charging unit to the LPG bomb.

Abstract: A fuel pump control method can improve acceleration response and operability of a vehicle by allowing a rapid increase in fuel pressure of a low-pressure pump in re-acceleration after fuel cut in a vehicle equipped with a fuel supply system where a low-pressure pump and a high-pressure pump, which are variably controlled, are connected in series.

Abstract: A device for reducing the temperature of a bombe, which stores liquefied petroleum gas (LPG) fuel and may be connected to a fuel supply line for supplying the fuel to an injector, using latent heat of LPG vaporization, may include a fuel pump installed in the bombe and connected to an end of the fuel supply line for pressurizing the fuel, a cut-off valve installed in the fuel supply line for selectively cutting off fuel supply to the injector, a fuel collection line branched from the fuel supply line to the inside of the bombe for collecting the supplied fuel into the bombe when the cut-off valve may be closed, and an injection nozzle connected to the fuel collection line and injecting the fuel collected through the fuel collection line into the inside of the bombe.

Abstract: A canister for vehicles provided with an activated carbon to absorb an evaporation gas evaporated from a fuel tank, and releasing the absorbed evaporation gas to an engine, may include a housing to receive the activated carbon; an evaporation gas supply passage formed to the housing and fluid-connected to the fuel tank; an air passage formed to the housing and selectively receiving an air from the exterior of the housing; and a purge passage formed to the housing and fluid-connected to a purge line to supply the evaporation gas to the engine according to a flow of the received air, wherein the purge passage is provided with a first purge passage formed to the housing and directly fluid-connecting the housing to the purge line and a second purge passage formed to the housing and having an end portion positioned inside the first purge passage or the purge line.

Abstract: A pressure sustaining system for an LPG bombe may include the LPG bombe, in which an LPG fuel may be injected and which may be equipped with a ventilation tunnel for emitting the air inside the LPG bombe, and a check valve unit, installed at an opening of the ventilation tunnel, with a fixed conversion pressure so as to keep an air pressure inside the LPG bombe above a predetermined value.

Abstract: A fuel supply system may include a fuel tank that is filled with fuel, a fuel pump supplying an engine with the fuel in the fuel tank, a suction line connecting the fuel tank to the fuel pump, a supply line connecting the fuel pump to the engine, and a jet nozzle disposed in the suction line to inject a portion of fuel that is supplied from the fuel pump in a flowing direction of the fuel supplied from the fuel tank.

Abstract: A fuel supplying system of an LPI engine is capable of improving performance of a fuel pump by decreasing suction pressure thereof. A fuel supplying system of an LPI engine may include a fuel tank storing fuel, a fuel pump feeding fuel supplied by the fuel tank to the engine through a fuel supplying line, and a fuel return line for returning fuel from the engine to the inside of the fuel tank. The fuel pump may be divided into a pump chamber and an operating chamber, and a vent hole is formed at a case of the fuel pump.

Abstract: A canister for vehicles provided with an activated carbon to absorb an evaporation gas evaporated from a fuel tank, and releasing the absorbed evaporation gas to an engine, may include a housing to receive the activated carbon; an evaporation gas supply passage formed to the housing and fluid-connected to the fuel tank; an air passage formed to the housing and selectively receiving an air from the exterior of the housing; and a purge passage formed to the housing and fluid-connected to a purge line to supply the evaporation gas to the engine according to a flow of the received air, wherein the purge passage is provided with a first purge passage formed to the housing and directly fluid-connecting the housing to the purge line and a second purge passage formed to the housing and having an end portion positioned inside the first purge passage or the purge line.

Abstract: A fuel supply system may include a fuel tank that is filled with fuel, a fuel pump supplying an engine with the fuel in the fuel tank, a suction line connecting the fuel tank to the fuel pump, a supply line connecting the fuel pump to the engine, and a jet nozzle disposed in the suction line to inject a portion of fuel that is supplied from the fuel pump in a flowing direction of the fuel supplied from the fuel tank.

Abstract: A fuel supplying system of a liquid propane injection (LPI) engine, may include a fuel tank for storing fuel, a main fuel pump connected to the fuel tank and disposed at the exterior of the fuel tank, a fuel supply line connecting the main fuel pump and the engine to supply fuel from the main fuel pump to the engine, and a fuel return line connecting the engine and the interior of the fuel tank to return fuel from the engine to the interior of the fuel tank, wherein a sub-fuel pump is provided to the interior of the fuel tank and connected to the fuel supply line through a sub-fuel pump connecting pipe, the sub-fuel pump being operated when a predetermined condition is satisfied.