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：US20210157339A1

公开(公告)日：2021-05-27

申请号：US17046459

申请日：2019-04-03

Applicant: PIOLAX, INC.

Inventor： Kenta MIHARA

IPC: G05D7/01 ,  B60K15/035

Abstract: There is provided a valve device, including: a housing in which, via a partition wall, a valve chamber is provided below the partition wall and a vent chamber is provided above the partition wall, and a vent hole through which the valve chamber and the vent chamber communicate with each other is provided in the partition wall; and a float valve. A valve seat is formed on a side of the valve chamber of the partition wall, and an opening is provided on an inner side of the valve seat. The opening includes a first opening and a second opening extending outward in a slit shape from an outer periphery of the first opening. A seal part having elasticity that contacts with and separates from the valve seat to close and open the first opening and the second opening, is disposed above the float valve.

公开(公告)号：US20210138895A1

公开(公告)日：2021-05-13

申请号：US16492196

申请日：2018-03-09

Applicant: PIOLAX, INC.

Inventor： Kenta MIHARA

IPC: B60K15/035 ,  F02M37/00

Abstract: A valve device includes: a housing having a valve chamber and a ventilation chamber divided by a dividing wall, the dividing wall having an opening, and the housing having a discharge opening formed at a peripheral surface on the ventilation chamber side; a float valve coming into and out of contact with the opening; and a fuel vapor pipe connected with the discharge opening outside the housing. The ventilation chamber is provided with a tubular wall which communicates with the discharge opening and which extends from the discharge opening toward the inside of the ventilation chamber. The tubular wall has a surface on the dividing wall side which is provided with a ventilation hole communicating with the ventilation chamber. An end portion on the extending direction side of the tubular wall is closed.