公开(公告)号：US20110226356A1

公开(公告)日：2011-09-22

申请号：US12998768

申请日：2009-08-21

申请人： Kosei Yamaguchi

发明人： Kosei Yamaguchi

IPC分类号： F16K15/00

CPC分类号： B60K15/03519 ,  B60K2015/03585 ,  F16K17/196 ,  Y10T137/7777 ,  Y10T137/778 ,  Y10T137/7837

摘要： There is provided a check valve which can reduce the operation noise of a positive-pressure valve and a negative-pressure valve when they slide and which can facilitate the assemblage work of the positive-pressure valve and the negative-pressure valve.The check valve 1 includes a main-casing 10, a sub-casing 20, a positive-pressure valve 30 and a negative-pressure valve 50. The positive-pressure valve 30 has through holes 39 and a negative-pressure valve seat 36a. The negative-pressure valve 50 has leg portions 53. A cap 60 is disposed within the positive-pressure valve 30. A positive-pressure spring S1 is disposed between the positive-pressure valve 30 and the sub-casing 20, and a negative-pressure spring S2 is disposed between the positive-pressure valve 30 and the cap 60. A positive-pressure flow path R1 for releasing fuel vapor is formed between an outer circumference of the positive-pressure valve and an inner circumference of the main-casing, at further outward position than the positive-pressure spring S1. A negative-pressure flow path R2 for introducing outside air is formed between an inner circumference of the positive-pressure valve and the leg portions and an outer circumference of the cap 60 and between the through holes and the leg portions, at further outward position than the negative-pressure spring S2.

摘要翻译： 提供了一种止回阀，当止回阀滑动时，可以降低正压阀和负压阀的运行噪声，并且能够有利于正压阀和负压阀的组装工作。 止回阀1包括主壳体10，副壳体20，正压阀30和负压阀50.正压阀30具有通孔39和负压阀座36a。 负压阀50具有支腿部分53.盖60设置在正压阀30内。正压弹簧S1设置在正压阀30和副壳体20之间， 压力弹簧S2设置在正压阀30和盖60之间。在正压阀的外周和主壳体的内周之间形成用于释放燃料蒸气的正压流路R1， 在比正压弹簧S1更向外的位置。 在正压阀的内周和腿部之间形成有用于引入外部空气的负压流路R2，并且在帽60的外周和通孔与腿部之间形成在比外侧位置更靠外侧的位置 负压弹簧S2。

公开(公告)号：US08561638B2

公开(公告)日：2013-10-22

申请号：US12998768

申请日：2009-08-21

申请人： Kosei Yamaguchi

发明人： Kosei Yamaguchi

IPC分类号： F16K24/00

CPC分类号： B60K15/03519 ,  B60K2015/03585 ,  F16K17/196 ,  Y10T137/7777 ,  Y10T137/778 ,  Y10T137/7837

摘要： A check valve includes a main-casing, a sub-casing, a positive-pressure valve and a negative-pressure valve. The positive-pressure valve has through holes and a negative-pressure valve seat. The negative-pressure valve has leg portions. A cap is disposed within the positive-pressure valve. A positive-pressure spring is disposed between the positive-pressure valve and the sub-casing, and a negative-pressure spring is disposed between the positive-pressure valve and the cap. A positive-pressure flow path for releasing fuel vapor is formed between an outer circumference of the positive-pressure valve and an inner circumference of the main-casing, at further outward position than the positive-pressure spring. A negative-pressure flow path for introducing outside air is formed between an inner circumference of the positive-pressure valve and the leg portions and an outer circumference of the cap and between the through holes and the leg portions, at further outward position than the negative-pressure spring.

摘要翻译： 止回阀包括主壳体，副壳体，正压阀和负压阀。 正压阀具有通孔和负压阀座。 负压阀具有支脚部分。 在正压阀内设置盖。 正压弹簧设置在正压阀和副壳之间，负压弹簧设置在正压阀和盖之间。 在正压弹簧的进一步向外位置处，在正压阀的外周和主壳体的内周之间形成有用于释放燃料蒸气的正压流路。 在正压阀的内周和腿部之间形成有用于引入外部空气的负压流动路径，并且在帽子的外周和通孔与腿部之间形成在比负极 压力弹簧

公开(公告)号：US20100126603A1

公开(公告)日：2010-05-27

申请号：US12585280

申请日：2009-09-10

申请人： Kosei Yamaguchi

发明人： Kosei Yamaguchi

IPC分类号： F16K21/04

CPC分类号： B60K15/04 ,  Y10T137/7837 ,  Y10T137/7856 ,  Y10T137/86372

摘要： According to an aspect of the present invention, there is provided a fuel tank check valve including: a main tubular body attached on a fuel filler pipe; a valve element; a first tube that is disposed between the main tubular body and the fuel filler pipe and that has a first locking portion to engage with the fuel filler pipe; an annular seal member; and a second tube that is disposed to sandwich the annular seal member with the first tube and that has a second locking portion to engage with the main tubular body, wherein the fuel filler pipe is disposed on an inner circumferential surface of the first tube, wherein the first locking portion projects in an inside diameter direction, and wherein the first locking portion engages with an engagement hole in the fuel filler pipe from an outside.

摘要翻译： 根据本发明的一个方面，提供了一种燃料箱止回阀，包括：主管体，其安装在燃料加注管上; 阀元件 第一管，其设置在主管体和燃料加注管之间，并且具有与燃料加注管接合的第一锁定部; 环形密封件; 以及第二管，其设置成将所述环形密封构件夹在所述第一管中，并且具有第二锁定部分以与所述主管状体接合，其中所述燃料加注管设置在所述第一管的内周表面上，其中 第一锁定部分在内径方向上突出，并且其中第一锁定部分从外部与燃料加注管中的接合孔啮合。

公开(公告)号：US09097356B2

公开(公告)日：2015-08-04

申请号：US14241805

申请日：2012-03-30

申请人： Kosei Yamaguchi

发明人： Kosei Yamaguchi

IPC分类号： F16K17/196 ,  F02M37/20 ,  B60K15/035 ,  F02M37/00

CPC分类号： F16K17/196 ,  B60K15/03519 ,  B60K2015/03276 ,  B60K2015/03282 ,  B60K2015/03296 ,  B60K2015/0358 ,  F02M37/0029 ,  F02M37/20 ,  Y10T137/7777 ,  Y10T137/778

摘要： A check valve includes a casing including a positive pressure valve seat, a positive pressure valve urged by a positive pressure valve spring and including a negative pressure valve seat, and a negative pressure valve assembled to the positive pressure valve and urged by a negative pressure valve spring, where the positive pressure valve includes an inner cylinder, an outer cylinder that is connected with an outer circumference of the inner cylinder via ribs, and passages formed between the inner cylinder and the outer cylinder, where the positive pressure valve spring is disposed the casing and the outer cylinder, and where the negative pressure valve spring is disposed in the inner cylinder.

摘要翻译： 止回阀包括壳体，其包括正压阀座，由正压阀弹簧施力并包括负压阀座的正压阀和组合到正压阀并由负压阀推动的负压阀 弹簧，其中正压阀包括内筒，通过肋与内筒的外周连接的外筒，以及形成在内筒和外筒之间的通道，其中设置有正压阀弹簧 壳体和外筒，并且负压阀弹簧设置在内筒中。

公开(公告)号：US08316881B2

公开(公告)日：2012-11-27

申请号：US12585280

申请日：2009-09-10

申请人： Kosei Yamaguchi

发明人： Kosei Yamaguchi

IPC分类号： B60K15/04 ,  F16L37/098

CPC分类号： B60K15/04 ,  Y10T137/7837 ,  Y10T137/7856 ,  Y10T137/86372

摘要： According to an aspect of the present invention, there is provided a fuel tank check valve including: a main tubular body attached on a fuel filler pipe; a valve element; a first tube that is disposed between the main tubular body and the fuel filler pipe and that has a first locking portion to engage with the fuel filler pipe; an annular seal member; and a second tube that is disposed to sandwich the annular seal member with the first tube and that has a second locking portion to engage with the main tubular body, wherein the fuel filler pipe is disposed on an inner circumferential surface of the first tube, wherein the first locking portion projects in an inside diameter direction, and wherein the first locking portion engages with an engagement hole in the fuel filler pipe from an outside.

摘要翻译： 根据本发明的一个方面，提供了一种燃料箱止回阀，包括：主管体，其安装在燃料加注管上; 阀元件 第一管，其设置在主管体和燃料加注管之间，并且具有与燃料加注管接合的第一锁定部; 环形密封件; 以及第二管，其设置成将所述环形密封构件夹在所述第一管中，并且具有第二锁定部分以与所述主管状体接合，其中所述燃料加注管设置在所述第一管的内周表面上，其中 第一锁定部分在内径方向上突出，并且其中第一锁定部分从外部与燃料加注管中的接合孔啮合。