公开(公告)号：US11415092B2

公开(公告)日：2022-08-16

申请号：US17046643

申请日：2019-03-18

Applicant: PIOLAX, INC.

Inventor： Takahiro Sakai ,  Yusuke Ochiai

IPC: F16K15/06 ,  F02M37/00 ,  B60K15/03

Abstract: To provide a fuel tank check valve making it easy to assemble a cap to a valve element housing. This fuel tank check valve has a body tube provided with a valve element housing, a valve element, a cap, and a spring, wherein the valve element housing has a base end side frame, a tip end side frame to which the cap is mounted, and a first coupling frame connecting the both frames, the tip end side frame is provided with a retraction portion having a shape in which a circumferential part is retracted from the tip end surface thereof to the base end side frame side, the cap is formed with a notch whose circumferential part is notched, and the cap is assembled to the valve element housing so that the notch is positioned in the retraction portion.

公开(公告)号：US12103380B2

公开(公告)日：2024-10-01

申请号：US18267663

申请日：2021-11-15

Applicant: PIOLAX, INC.

Inventor： Takahiro Sakai ,  Atsuki Teramoto

IPC: F16K24/04 ,  B60K15/035 ,  B60K15/03

CPC classification number: B60K15/035 ,  F16K24/044 ,  B60K2015/03256 ,  Y10T137/3099

Abstract: There is provided a valve device including: a housing; and a float valve. The float valve includes a main float, a sub-float held at an upper portion of the main float to be able to ascend and descend by a predetermined distance with respect to the main float, and a sub-float biasing spring disposed between the main float and the sub-float and configured to bias the sub-float upward with respect to the main float. The sub-float includes a spring support portion configured to support an upper end of the sub-float biasing spring and a seal portion that is configured to come into contact with and separate from an opening portion. The main float is movable further upward with respect to the sub-float by compressing the sub-float biasing spring in a state where the float valve ascends and the opening portion is closed by the sub-float.