Patent ID: 8307842
Filing Date: 2012-11-13
Classification: F16K,F17C,Y02E,Y10T

Abstract:
1. A fluid supply valve attachment device comprising: a fixing member that includes a first passage through which fluid passes, a recessed fitting section that is provided with a bottom surface at an end in an axial direction, an internal thread that is formed on the inner periphery of the recessed fitting section, a reference inner peripheral surface that is formed on the inner periphery of the recessed fitting section between the internal thread and the bottom surface; and a fluid supply valve that includes a second passage whose one end communicates with the first passage of the fixing member and whose other end communicates with a fuel supply source, a valve body that opens or closes the second passage, a protruded insertion section that is inserted in and attached to the recessed fitting section, an external thread that is provided on the protruded insertion section and is threaded into the internal thread of the recessed fitting section, and a reference outer peripheral surface that is fitted to the reference inner peripheral surface of the fixing member, wherein clearance between the reference outer peripheral surface and the reference inner peripheral surface when the reference outer peripheral surface is fitted to the reference inner peripheral surface is set smaller than clearance between the external thread and the internal thread when the external thread is threaded into the internal thread.