公开(公告)号：US20170138493A1

公开(公告)日：2017-05-18

申请号：US15345650

申请日：2016-11-08

Applicant: PIOLAX, INC.

Inventor： Kosei YAMAGUCHI

IPC: F16K17/196 ,  F16K27/02 ,  B60K15/035 ,  F16K15/02

CPC classification number: F16K17/196 ,  B60K15/03519 ,  B60K2015/03296 ,  F16K15/026 ,  F16K27/0209 ,  Y10T137/7772 ,  Y10T137/7776 ,  Y10T137/7777 ,  Y10T137/7779

Abstract: One embodiment relates to a valve device. The valve device includes: a valve case; a valve element slidably disposed within a valve chamber defined in the valve case; and a positive pressure spring configured to urge the valve element toward a valve seat in the valve case. The valve element includes an outer circumferential portion having a predetermined length extending along an inner circumference of the valve chamber. The outer circumferential portion includes plural opening portions. And, ribs project from the inner circumference of the valve chamber to enter into the opening portions, thereby limiting movement of the positive pressure spring in a radial direction.

公开(公告)号：US20170138494A1

公开(公告)日：2017-05-18

申请号：US15352170

申请日：2016-11-15

Applicant: PIOLAX, INC.

Inventor： Kosei YAMAGUCHI

IPC: F16K17/196 ,  F16K39/02 ,  B60K15/035 ,  F16K27/02 ,  F16K15/14 ,  G05D7/01 ,  F16K15/02

CPC classification number: F16K17/196 ,  B60K15/03519 ,  B60K2015/03256 ,  F16K15/026 ,  F16K15/148 ,  F16K27/0209 ,  F16K39/024

Abstract: One embodiment provides a check valve including a valve case, a positive pressure valve, a spring, and a negative pressure valve. The positive pressure valve is slidably disposed in a valve chamber of the valve case. The spring urges the positive pressure valve to abut on a positive pressure valve seat of the valve case. The negative pressure valve is on the positive pressure valve to abut on a negative pressure valve seat of the positive pressure valve. The negative pressure valve closes a communicating passage in the positive pressure valve in a normal state, and opens it when a pressure in the fuel tank falls to a predetermined value or less.

公开(公告)号：US20160101684A1

公开(公告)日：2016-04-14

申请号：US14878101

申请日：2015-10-08

Applicant: PIOLAX, INC.

Inventor： Kosei YAMAGUCHI

IPC: B60K15/04 ,  F16K15/02

CPC classification number: F16K15/025 ,  F16K15/026 ,  F16K17/196 ,  F16K24/04 ,  F16K24/06 ,  F16K27/0209

Abstract: An embodiment provides a check valve including a valve case, a positive pressure valve having a resin ring sealing member, and a resin negative pressure valve. The positive pressure valve and the negative pressure valve are disposed in the valve case. The positive pressure valve includes a first mount surface and a second mount surface disposed on an inner diameter side of the first mount surface. In the valve case, a presser cap is mounted on the positive pressure valve so as to sandwich the ring sealing member and the negative pressure valve with the first mount surface and the second mount surface of the positive pressure valve.

Abstract translation: 实施例提供一种止回阀，其包括阀壳，具有树脂密封构件的正压阀和树脂负压阀。 正压阀和负压阀配置在阀壳内。 正压阀包括第一安装表面和设置在第一安装表面的内径侧上的第二安装表面。 在阀壳体中，压盖安装在正压阀上，以便将环形密封件和负压阀夹在正压阀的第一安装表面和第二安装表面上。