Abstract: A fuel tank including a built-in component is provided. The built-in component includes: a carrier part being a rigid body including a plurality of engaging parts, and a plurality of struts each including an engageable part to be engaged with one of the engaging parts. The engageable part of the strut includes an upper contact surface and a lower contact surface, which are formed spaced apart from each other in a height direction. The engaging parts of the carrier part each includes a biasing part that, when the strut is engaged with the engaging part, enters a space between the upper contact surface and the lower contact surface and generates biasing forces in directions to move the upper contact surface and the lower contact surface away from each other.

Abstract: A fuel tank manufacturing apparatus for a fuel tank, the fuel tank having therein a built-in component with a head portion, a neck portion, and a shoulder portion, and having the built-in component anchored to a tank body with a part of a parison wrapped around the neck portion during molding the tank body, includes: a pair of molding dies to have the parison transferred to the built-in component by blow molding; and shaping devices respectively provided in the pair of molding dies, wherein the shaping devices each include: an end surface to contact the parison; a recess provided in the end surface to receive the head portion and the neck portion and covered by the shoulder portion during molding; and an air hole provided in an area of a bottom surface of the recess corresponding to the head portion through which air pressure is applied toward the head portion.

Abstract: A fuel tank includes a built-in component having a head portion, a neck portion, and a shoulder portion, the built-in component being anchored to a tank body by blowing air from outside a parison to cause the parison wrap around the neck portion during molding of the tank body. A slit extending in one direction only is formed on a surface of the shoulder portion as an air vent path.

Abstract: Provided is a fuel tank having a built-in component placeable with high accuracy. The fuel tank has a built-in component, and the built-in component includes: a carrier as a rigid body having fittings; and pillars having fitted portions to be respectively fitted into the fittings of the carrier; wherein the fittings include at least one slidable fitting having one of the fitted portions of the pillars slidably fitted thereinto due to post-molding shrinkage of the fuel tank, and a fixed fitting having another one of the fitted portions of the pillars fitted thereinto so as not to be slidable, wherein a slidable direction of the at least one slidable fitting is directed toward the fixed fitting.

Abstract: A fuel tank manufacturing apparatus for a fuel tank, the fuel tank having therein a built-in component with a head portion, a neck portion, and a shoulder portion, and having the built-in component anchored to a tank body with a part of a parison wrapped around the neck portion during molding the tank body, includes: a pair of molding dies to have the parison transferred to the built-in component by blow molding; and shaping devices respectively provided in the pair of molding dies, wherein the shaping devices each include: an end surface to contact the parison; a recess provided in the end surface to receive the head portion and the neck portion and covered by the shoulder portion during molding; and an air hole provided in an area of a bottom surface of the recess corresponding to the head portion through which air pressure is applied toward the head portion.

Abstract: A fuel tank includes a tank body and a built-in component, which has a head portion, a neck portion, and a shoulder portion, the built-in component being anchored to the tank body with a parison wrapped around the neck portion during molding of the tank body. The head portion and the neck portion are formed with at least one hollowed portion, which is open to an end surface of the head portion, and a cap member is provided to seal an opening of the at least one hollowed portion.

Abstract: Provided is a fuel tank having a built-in component placeable with high accuracy. The fuel tank has a built-in component, and the built-in component includes: a carrier as a rigid body having fittings; and pillars having fitted portions to be respectively fitted into the fittings of the carrier; wherein the fittings include at least one slidable fitting having one of the fitted portions of the pillars slidably fitted thereinto due to post-molding shrinkage of the fuel tank, and a fixed fitting having another one of the fitted portions of the pillars fitted thereinto so as not to be slidable, wherein a slidable direction of the at least one slidable fitting is directed toward the fixed fitting.

Abstract: A fuel tank includes a tank body and a built-in component, which has a head portion, a neck portion, and a shoulder portion, the built-in component being anchored to the tank body with a parison wrapped around the neck portion during molding of the tank body. The head portion and the neck portion are formed with at least one hollowed portion, which is open to an end surface of the head portion, and a cap member is provided to seal an opening of the at least one hollowed portion.

Abstract: A fuel tank includes a built-in component having a head portion, a neck portion, and a shoulder portion, the built-in component being anchored to a tank body by blowing air from outside a parison to cause the parison wrap around the neck portion during molding of the tank body. A slit extending in one direction only is formed on a surface of the shoulder portion as an air vent path.

Abstract: A fuel fill opening structure for a fuel tank includes a fuel filler pipe, a fuel fill opening, and a flow guide. The flow guide includes a main guide wall which partitions a fuel introduction region inside the fuel filler pipe into an upper space communicating with a tank main body side and a lower space communicating with the fuel fill opening side, and a partition wall provided to be continuous with the main guide wall and configured to close a space between an upper surface side of the main guide wall and an inner surface of the fuel filler pipe. The main guide wall includes a bent inclined part that is bent and inclined downward from a middle portion in running from the fuel fill opening side toward the tank main body side. The bent inclined part has a shape in which a width thereof becomes smaller when viewed from above as it inclines downward.

Abstract: A fuel tank valve having: a housing that is arranged in a fuel tank and has a communication port communicating with an outside of the fuel tank; and a float valve body that is installed in the housing and closes the communication port when fuel in the housing increases, where a wall part of the housing has an opening part through which the fuel flows in and out, and a projecting part that is formed to correspond to the opening part and projects outwardly from the wall part, and the projecting part is separated above from the opening part by a predetermined distance, is provided.

Abstract: A fuel fill opening structure for a fuel tank includes a fuel filler pipe, a fuel fill opening, and a flow guide. The flow guide includes a main guide wall which partitions a fuel introduction region inside the fuel filler pipe into an upper space communicating with a tank main body side and a lower space communicating with the fuel fill opening side, and a partition wall provided to be continuous with the main guide wall and configured to close a space between an upper surface side of the main guide wall and an inner surface of the fuel filler pipe. The main guide wall includes a bent inclined part that is bent and inclined downward from a middle portion in running from the fuel fill opening side toward the tank main body side. The bent inclined part has a shape in which a width thereof becomes smaller when viewed from above as it inclines downward.

Abstract: One embodiment provides a valve device for fuel tank. The valve device includes: a housing in which a valve chamber and a ventilation chamber are divided by a partition wall having a first and second openings; a vapor discharge outlet communicating with the ventilation chamber; first and second float valves vertically movably housed in the valve chamber to close the first and second openings, respectively; and a recess portion defined in a part of the ventilation chamber correspondingly with the first opening. A passage is provided to communicate the discharge outlet with the recess portion. And, a first wall portion is provided around an end of the passage on a side of the recess portion so as to block the fuel that flows out of the second opening into the first opening from heading to the third opening.

Abstract: A fuel inlet 10 includes a fuel inlet body 11 that is formed of resin including a reception pipe portion 20, a filler pipe connection pipe portion 30, a breather pipe connection pipe portion 40, and a fluid introduction portion 60. The reception pipe portion 60 receives a fuel nozzle 3. The filler pipe connection pipe portion 30 is located on a lower side of the reception pipe portion 20 and is connected to a filler pipe 31. The breather pipe connection pipe portion 40 is located on an upper side of the reception pipe portion 20 and is connected to a breather pipe 41. The fluid introduction portion 20 causes foamed fluid to flow along an inner wall surface of the reception pipe portion 20 while liquefying the foamed fluid, the foamed fluid flowing from the breather pipe connection pipe portion 40 to the reception pipe portion 20.

Abstract: An evaporated fuel processing device includes a liquid level surface detection valve that detects a full-tank liquid level surface when refueling, and closes a canister communication hole; a fuel shutoff valve to close an evaporation hole when a liquid level surface becomes higher than the full-tank liquid level surface; and an outlet port communicating with a canister. A first communication path and a second communication path are formed in a folded back shape folded back at a first valve seat upper part in plan view. The first communication path enables communication between the first valve seat upper part and a second valve seat upper part, and the second communication path enables communication between the first valve seat upper part and the outlet port. This constitution reduces fuel liquid leakage from the outlet port.

Abstract: A fuel tank valve device includes a housing in which a partition wall defines a lower valve chamber and an upper ventilation chamber, and a first opening and a second opening are provided to establish a communication between the lower valve chamber and the upper ventilation chamber, a first float valve that is accommodated in a first valve chamber of the lower valve chamber so as to rise and fall and that closes the first opening when a fuel level in a fuel tank nearly reaches a set full fuel level, and a second float valve that is accommodated in a second valve chamber of the lower valve chamber so as to rise and fall and that closes the second opening when the fuel level in the fuel tank rises abnormally.

Abstract: A fuel inlet 10 includes a fuel inlet body 11 that is formed of resin including a reception pipe portion 20, a filler pipe connection pipe portion 30, a breather pipe connection pipe portion 40, and a fluid introduction portion 60. The reception pipe portion 60 receives a fuel nozzle 3. The filler pipe connection pipe portion 30 is located on a lower side of the reception pipe portion 20 and is connected to a filler pipe 31. The breather pipe connection pipe portion 40 is located on an upper side of the reception pipe portion 20 and is connected to a breather pipe 41. The fluid introduction portion 20 causes foamed fluid to flow along an inner wall surface of the reception pipe portion 20 while liquefying the foamed fluid, the foamed fluid flowing from the breather pipe connection pipe portion 40 to the reception pipe portion 20.

Abstract: A valve device for a fuel tank has a housing having a valve chamber which is provided below a partition wall and a ventilation chamber which is provided above the partition wall; a recess having a first opening formed in the bottom section thereof and defining a part of the ventilation chamber; and a fuel vapor discharge opening formed in the inner periphery of the recess. The partition wall has a shelf-like wall section extending from the peripheral edge of a second opening and reaching the inner periphery of the recess. The shelf-like wall section has formed therein a first groove section extending from the second opening side and connecting to the recess. A ceiling wall is disposed above the shelf-like wall section with a gap therebetween.

Abstract: An evaporated fuel processing device includes a liquid level surface detection valve that detects a full-tank liquid level surface when refueling, and closes a canister communication hole; a fuel shutoff valve to close an evaporation hole when a liquid level surface becomes higher than the full-tank liquid level surface; and an outlet port communicating with a canister. A first communication path and a second communication path are formed in a folded back shape folded back at a first valve seat upper part in plan view. The first communication path enables communication between the first valve seat upper part and a second valve seat upper part, and the second communication path enables communication between the first valve seat upper part and the outlet port. This constitution reduces fuel liquid leakage from the outlet port.

Abstract: One embodiment provides a valve device for fuel tank. The valve device includes: a housing in which a valve chamber and a ventilation chamber are divided by a partition wall having a first and second openings; a vapor discharge outlet communicating with the ventilation chamber; first and second float valves vertically movably housed in the valve chamber to close the first and second openings, respectively; and a recess portion defined in a part of the ventilation chamber correspondingly with the first opening. A passage is provided to communicate the discharge outlet with the recess portion. And, a first wall portion is provided around an end of the passage on a side of the recess portion so as to block the fuel that flows out of the second opening into the first opening from heading to the third opening.