Abstract: A casing has a vessel portion, in which a float valve unit is arranged. A fuel drain through-hole having a small diameter is formed at a closed end bottom of the vessel portion. A cross sectional area of the fuel drain through-hole is extremely smaller than an opening area of an inlet port, so that fuel discharging speed of the liquid fuel from the vessel portion through the fuel drain through-hole is suppressed to a small value. As a result, a fuel holding time of the liquid fuel in the vessel portion, which has entered into the vessel portion from the inlet port, is made longer.

Abstract: A resin tank weld member is a weld member that is to be welded to a resin tank that has a fuel permeation prevention function, for example, a pipe fitting, a fuel control valve such as a fuel escape prevention valve, an ORVR valve, etc., a pump, a filter device, etc. The resin tank weld member is formed from a single-layer material of a polyamide/polyolefin-based resin composition.

Abstract: A casing has a vessel portion, in which a float valve unit is arranged. A fuel drain through-hole having a small diameter is formed at a closed end bottom of the vessel portion. A cross sectional area of the fuel drain through-hole is extremely smaller than an opening area of an inlet port, so that fuel discharging speed of the liquid fuel from the vessel portion through the fuel drain through-hole is suppressed to a small value. As a result, a fuel holding time of the liquid fuel in the vessel portion, which has entered into the vessel portion from the inlet port, is made longer.

Abstract: A float valve structure that includes a case; a valve seat that is formed at an end portion of the case, at a position near an upper opening of the case; a float that is arranged in a space formed in the case so as to be vertically movable; a valve support member that is arranged above the float and that can be inserted into the upper opening; a valve that is fitted to the valve support member and that can contact the valve seat; and a valve opening member that can vertically move together with the float and that opens at least one portion of the valve.

Abstract: A vaporized fuel processing device attached to a fuel tank, includes a casing for forming an outer shell of the vaporized fuel processing device, a diaphragm valve unit opened at the time of increasing the pressure in the fuel tank, and a vent passage communicating with atmospheric air. In the vaporized fuel processing device, the diaphragm valve unit is disposed in a space formed in the casing.

Abstract: A resin tank weld member is a weld member that is to be welded to a resin tank that has a fuel permeation prevention function, for example, a pipe fitting, a fuel control valve such as a fuel escape prevention valve, an ORVR valve, etc., a pump, a filter device, etc. The resin tank weld member is formed from a single-layer material of a polyamide/polyolefin-based resin composition.

Abstract: A float valve structure according to the invention includes a case; a valve seat that is formed at an end portion of the case, at a position near an upper opening of the case; a float that is arranged in a space formed in the case so as to be vertically movable; a valve support member that is arranged above the float and that can be inserted into the upper opening; a valve that is fitted to the valve support member and that can contact the valve seat; and a valve opening member that can vertically move together with the float and that opens at least one portion of the valve.

Abstract: A vaporized fuel processing device attached to a fuel tank, includes a casing for forming an outer shell of the vaporized fuel processing device, adiaphragm valve unit opened at the time of increasing the pressure in the fuel tank, and a vent passage communicating with atmospheric air. In the vaporized fuel processing device, the diaphragm valve unit is disposed in a space formed in the casing.

Abstract: In a fuel cut-off valve device including a casing, a float which is provided so as to be movable up-and-down in the casing, a valve element which is provided on a top surface of the float, a ventilation passage which is communicated with a downstream side of the valve element, at least one opening which is provided below the float and is positioned in the fuel tank, there is provided a plate whose diameter is larger than a diameter of the float and which is provided below the float.

Abstract: In a vent valve structure including a cut valve that shuts off the flow of fuel vapor and fuel liquid, a positive pressure adjustment valve that opens when positive pressure is applied, and a negative pressure adjustment valve that opens when negative pressure is applied, the negative pressure adjustment valve is provided in a row arrangement with the cut valve in a position linking a ventilating passage and a fuel tank so as to bypass the valve opening of the cut valve.

Abstract: A low-cost solenoid is provided for stopping an engine, which reduces the possibility of the occurrence of damage, generates little noise due to impact and is of a simple structure. The solenoid includes a suction coil and a holding coil both located within a solenoid body. Current to the suction coil is shut off by means of the movement of a plunger. The solenoid further includes an end wall provided at one end of the solenoid body, a pin which slidably extends through the end wall, a fixed contact provided adjacent the end wall and a leaf-spring shape movable contact configured to be in contact with the fixed contact in a non-operating position of said plunger. When the plunger is brought into an operating position, it contacts the above-mentioned pin to release the contact between the movable contact and the fixed contact.