公开(公告)号：US20230027839A1

公开(公告)日：2023-01-26

申请号：US17785227

申请日：2020-12-17

Applicant: PIOLAX, INC.

Inventor： Kenta MIHARA ,  Kazuki YAJIMA

IPC: B60K15/035 ,  F16K24/04 ,  F16K17/12

Abstract: There is provided a valve device including: a housing; a float valve; and a pressure adjusting valve. A first valve seat is formed from a peripheral edge of a valve hole. An accommodation portion is provided in a protruding manner from a surface of a partition wall. An inner periphery of the accommodation portion is provided with a reduced diameter portion and an increased diameter portion. A height of an upper end of the reduced diameter portion is equal to or greater than a front surface of the pressure adjusting valve in a state where the pressure adjusting valve is in contact with the first valve seat. The pressure adjusting valve is configured to be beyond the upper end of the reduced diameter portion when the pressure adjusting valve is raised to a maximum due to an increase in pressure in a fuel tank.

公开(公告)号：US20240239186A1

公开(公告)日：2024-07-18

申请号：US18408009

申请日：2024-01-09

Applicant: PIOLAX, INC.

Inventor： Kazuki YAJIMA

IPC: B60K15/035 ,  B60K15/077

CPC classification number: B60K15/03519 ,  B60K15/077 ,  B60K2015/03289

Abstract: A valve device for a fuel tank includes: a housing in which an opening is formed in a partition wall, and a fuel vapor discharge port is provided; and a float valve. A ventilation chamber is provided with a tubular wall that is configured to communicate with the fuel vapor discharge port, and a notch is formed in a lower portion of a tip portion in an extending direction of the tubular wall. The partition wall includes a ceiling wall in which the opening is formed, and a peripheral wall extends downward from a peripheral edge of the ceiling wall. A part of the peripheral edge of the ceiling wall and a part of the peripheral wall are positioned inside the tubular wall through the notch when viewed in an axial direction of the tubular wall and a valve axial direction.

公开(公告)号：US20230018794A1

公开(公告)日：2023-01-19

申请号：US17784906

申请日：2020-12-17

Applicant: PIOLAX, INC.

Inventor： Kazuki YAJIMA

IPC: B60K15/03 ,  F16K24/04

Abstract: There is provided a valve device including: a housing in which a valve chamber is provided on a lower side and a ventilation chamber is provided on an upper side via a partition wall, the partition wall being formed with a valve hole; a float valve; and a pressure adjusting valve. An accommodation portion is provided in a protruding manner from a surface of the partition wall. An accommodating space configured to accommodate the pressure adjusting valve is formed on an inner side of the accommodation portion, and an outer space is formed on an outer side of the accommodating space. The accommodation portion is formed with an opening through which the accommodating space and the outer space communicate with each other.

公开(公告)号：US20230249543A1

公开(公告)日：2023-08-10

申请号：US18008616

申请日：2021-06-10

Applicant: PIOLAX, INC.

Inventor： Kazuki YAJIMA ,  Takuma KON

IPC: B60K15/035 ,  F16K24/04

CPC classification number: B60K15/035 ,  F16K24/044 ,  B60K2015/03289

Abstract: A valve device includes: a housing; a float valve; and a float valve support portion. The float valve support portion includes a support wall, a side wall, a first slit formed in the support wall, a second slit formed in the side wall, and an elastic piece defined by the first slit and the second slit. The elastic piece includes a first extending portion extending along the side wall, and a second extending portion extending from the first extending portion and capable of coming into contact with a bottom surface of the float valve.

公开(公告)号：US20230191903A1

公开(公告)日：2023-06-22

申请号：US18083049

申请日：2022-12-16

Applicant: PIOLAX, INC.

Inventor： Kazuki YAJIMA ,  Kenta MIHARA

IPC: B60K15/035 ,  F16K24/04 ,  F16K1/36

CPC classification number: B60K15/03504 ,  F16K1/36 ,  F16K24/044 ,  B60K2015/03289

Abstract: There is provided a valve device, including: a housing; a float valve; and a seal member. An opening portion includes a first region, and a second region. The seal member includes a first cover portion, and a second cover portion. The second cover portion includes a support portion, a wide portion, and a narrow portion. In a state where the seal member is retained and supported by the support portion with respect to the float valve, a width of the wide portion is set such that a tip end of the second region is covered, and that the second region of the opening portion is not exposed out of the seal member even in a state where the seal member is maximally displaced in a radial direction and/or a peripheral direction of the housing with respect to the opening portion.