Abstract: A resin filler tube includes: a tubular body; a flange having a diameter greater than an outer diameter of the tubular body, a thickness greater than a thickness of the tubular body, and a predetermined width in an axial direction, and having a first axial end face forming a weld surface to be welded to an outer circumferential edge of an opening hole of a fuel tank; and a base-end-side reverse tapered portion which connects between an end of the tubular body on the fuel tank side and an end of an outer circumferential surface of the flange on a side opposite to the fuel tank side, and which is reversely tapered so as to increase a diameter toward the flange. The base-end-side reverse tapered portion has an inner diameter that is not less than an inner diameter of the tubular body over an entire range in the axial direction.

Abstract: A resin filler tube includes: a tubular body; a flange having a diameter greater than an outer diameter of the tubular body, a thickness greater than a thickness of the tubular body, and a predetermined width in an axial direction, and having a first axial end face forming a weld surface to be welded to an outer circumferential edge of an opening hole of a fuel tank; and a base-end-side reverse tapered portion which connects between an end of the tubular body on the fuel tank side and an end of an outer circumferential surface of the flange on a side opposite to the fuel tank side, and which is reversely tapered so as to increase a diameter toward the flange. The base-end-side reverse tapered portion has an inner diameter that is not less than an inner diameter of the tubular body over an entire range in the axial direction.

Abstract: The connector comprises a housing having a connection hole where a pipe with a flange is inserted, a retainer having a latching portion that retains the pipe by being arranged at a location facing the connection hole and engaged with the flange, and a checker that is supported by the housing at the retaining position and is movable from the retaining position to the connection confirmation position when the pipe is inserted into the connection hole up to the normal connection position. The checker is configured to release the engagement between the latching portion and the flange, when at the connection confirmation position, by having the retainer that is engaged with the flange of the pipe at the normal connection position pushed to expand the distance of the retainer so that the pipe can be pulled out from the connection hole.

Abstract: A flap valve mechanism in an open-close device for fuel tank includes an open-close member, a shaft support mechanism, a spring and a gasket. The shaft support mechanism includes bearing members and a rotation restricting mechanism. The rotation restricting mechanism includes restricting elements and restricted elements to be engaged with the restricting elements. At a first position, the restricting elements are engaged with the restricted elements, so that the open-close member is moved in a direction of warping the gasket. At a second position, the restricting elements are disengaged from the restricted elements, so that the open-close member is rotated about shaft members.

Abstract: A flap valve mechanism in an open-close device for fuel tank includes an open-close member, a shaft support mechanism, a spring and a gasket. The shaft support mechanism includes bearing members and a rotation restricting mechanism. The rotation restricting mechanism includes restricting elements and restricted elements to be engaged with the restricting elements. At a first position, the restricting elements are engaged with the restricted elements, so that the open-close member is moved in a direction of warping the gasket. At a second position, the restricting elements are disengaged from the restricted elements, so that the open-close member is rotated about shaft members.

Abstract: An evaporative emission control system includes a fuel tank, a canister, a normally-closed control valve, a filler pipe, and a breather pipe. The fuel tank is to store fuel. The canister is to adsorb evaporative fuel generated in the fuel tank. The normally-closed control valve is provided in a vapor passage connecting the fuel tank to the canister. The fuel is delivered to the fuel tank through the filler pipe. The breather pipe includes a communicating passage, an opening, and at least one hole. The communicating passage connects the fuel tank to the filler pipe. The opening is provided at a first end of the breather pipe in the fuel tank. The opening is located below a predetermined fuel level in the fuel tank. The at least one hole is located above the predetermined fuel level in the fuel tank.

Abstract: An evaporation fuel processing system is equipped with a vapor passage, a canister, a purging passage, a purge control valve, a filling amount detector, and an ECU. The ECU comprises an adsorption amount detecting circuit that detects the adsorption amount of an evaporation fuel, which is adsorbed by the canister upon filling of the fuel at a time when a fuel is filled into a fuel tank, a breakthrough time calculating circuit that calculates a time, based on the detected adsorption amount, at which the canister would experience breakthrough in the event that the evaporation fuel were not purged into an engine from the canister, and a control circuit that carries out purge processing by the purge control valve based on the calculated time.

Abstract: An evaporated fuel treatment apparatus includes a control valve having a dead zone range in which an evaporated fuel is blocked even if the opening angle is increased from a close position in opening direction and a communicating range in which the evaporated fuel is allowed to flow therethrough when opening angle is increased from the dead zone range. A control unit determines whether the opening angle is switched between the dead zone range and the communicating range. The switching is determined on the basis of a pressure inside the fuel tank detected with a pressure sensor and an air-fuel ratio detected by an air-fuel ratio sensor. A control valve installed in a communication path between a fuel tank and a canister is prevented from being seized.

Abstract: A hermetically sealed fuel tank apparatus includes a pressure-resistant fuel tank for storing a fuel therein, the pressure-resistant fuel tank being capable of holding an internal pressure equal to or higher than the atmospheric pressure, a fuel vapor inlet pipe for introducing a fuel vapor produced in the pressure-resistant fuel tank, a canister contained in the pressure-resistant fuel tank and connected to the fuel vapor inlet pipe for adsorbing the fuel vapor, a drain passage through which the canister communicates with external air, and a shutoff valve connected to the drain passage and normally closed to hermetically seal the pressure-resistant fuel tank.

Abstract: There is provided a structure of a vibration insulating member for firmly fixing the member between a fuel tank mounted on a vehicle body by means of a tank band and the vehicle body. The vibration insulating member includes an engaging protrusion that is fixed to a fixing hole that is made through the vehicle body in a direction orthogonal to a direction in which the tank band is fastened.

Abstract: An evaporative emission control system includes a fuel tank, a canister, a normally-closed control valve, a filler pipe, and a breather pipe. The fuel tank is to store fuel. The canister is to adsorb evaporative fuel generated in the fuel tank. The normally-closed control valve is provided in a vapor passage connecting the fuel tank to the canister. The fuel is delivered to the fuel tank through the filler pipe. The breather pipe includes a communicating passage, an opening, and at least one hole. The communicating passage connects the fuel tank to the filler pipe. The opening is provided at a first end of the breather pipe in the fuel tank. The opening is located below a predetermined fuel level in the fuel tank. The at least one hole is located above the predetermined fuel level in the fuel tank.

Abstract: An evaporated fuel treatment apparatus includes a control valve having a dead zone range in which an evaporated fuel is blocked even if the opening angle is increased from a close position in opening direction and a communicating range in which the evaporated fuel is allowed to flow therethrough when opening angle is increased from the dead zone range. A control unit determines whether the opening angle is switched between the dead zone range and the communicating range. The switching is determined on the basis of a pressure inside the fuel tank detected with a pressure sensor and an air-fuel ratio detected by an air-fuel ratio sensor. A control valve installed in a communication path between a fuel tank and a canister is prevented from being seized.

Abstract: An evaporation fuel processing system is equipped with a vapor passage, a canister, a purging passage, a purge control valve, a filling amount detector, and an ECU. The ECU comprises an adsorption amount detecting circuit that detects the adsorption amount of an evaporation fuel, which is adsorbed by the canister upon filling of the fuel at a time when a fuel is filled into a fuel tank, a breakthrough time calculating circuit that calculates a time, based on the detected adsorption amount, at which the canister would experience breakthrough in the event that the evaporation fuel were not purged into an engine from the canister, and a control circuit that carries out purge processing by the purge control valve based on the calculated time.

Abstract: A hermetically sealed fuel tank apparatus includes a pressure-resistant fuel tank for storing a fuel therein, the pressure-resistant fuel tank being capable of holding an internal pressure equal to or higher than the atmospheric pressure, a fuel vapor inlet pipe for introducing a fuel vapor produced in the pressure-resistant fuel tank, a canister contained in the pressure-resistant fuel tank and connected to the fuel vapor inlet pipe for adsorbing the fuel vapor, a drain passage through which the canister communicates with external air, and a shutoff valve connected to the drain passage and normally closed to hermetically seal the pressure-resistant fuel tank.

Abstract: There is provided a structure of a vibration insulating member for firmly fixing the member between a fuel tank mounted on a vehicle body by means of a tank band and the vehicle body. The vibration insulating member includes an engaging protrusion that is fixed to a fixing hole that is made through the vehicle body in a direction orthogonal to a direction in which the tank band is fastened.