公开(公告)号：US20040261846A1

公开(公告)日：2004-12-30

申请号：US10820153

申请日：2004-04-08

Applicant: Piolax Inc.

Inventor： Shinichi Matsuo ,  Kenji Yonezawa

IPC: F16K024/04

CPC classification number: F16K24/042 ,  Y10T137/0874 ,  Y10T137/3099

Abstract: An allowable angle of a float valve member with respect to a valve case is so set that a deformed direction, as caused by a gate position at a injection molding time, of a inner circumference of a communication hole of the valve case with respect to a roundness and a deformed direction, as caused by a gate position at a injection molding time, of an outer circumference of a crest portion of the float valve member with respect to the roundness may be substantially aligned. Between the valve case and the float valve member, there is an interposed angle regulating unit for preventing the angle of the float valve member with respect to the valve case from varying over the allowable angle.

Abstract translation: 浮阀构件相对于阀壳体的允许角度被设定为使得由阀壳体的连通孔的内周相对于喷嘴成型时的入口位置引起的变形方向 可以基本上对准浮子阀构件的顶部的圆周方向的圆周度和由浇注模制时的浇口位置引起的变形方向。 在阀壳和浮阀构件之间，设置有用于防止浮阀构件相对于阀壳的角度在允许角度上变化的插入角度调节单元。

公开(公告)号：US20040003843A1

公开(公告)日：2004-01-08

申请号：US10420835

申请日：2003-04-23

Applicant: Piolax Inc.

Inventor： Harumitsu Sugiyama ,  Morihiko Kishi ,  Shinichi Matsuo

IPC: F16K024/04

CPC classification number: F16K24/044 ,  Y10T137/0874 ,  Y10T137/3099

Abstract: The first seal seat is disposed in a first passage of a case. The first float valve body is disposed in the case and closes the first seal seat in response to the liquid level of the fuel. The second seal seat is disposed vertically above the first seal seat, in a second passage of the case. The second valve body is disposed on one side of the second seal seat communicating to the outside of the second passage, with being resiliently urged upwards from below. The second float is disposed in the case and regulates an upper end position of the second valve body to open the second valve seat in response to movement of the liquid level of fuel at least until the liquid level is higher than the liquid level at which the first float valve body closes the first seal seat.