公开(公告)号：US12055223B2

公开(公告)日：2024-08-06

申请号：US17868095

申请日：2022-07-19

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Harada ,  Yuushi Tsuduki ,  Noriyuki Inagaki

IPC: F16K1/226 ,  F02M26/70 ,  F16J15/3272 ,  F16J15/44

CPC classification number: F16K1/2261 ,  F02M26/70 ,  F16J15/3272 ,  F16J15/441

Abstract: A seal ring of a valve element includes a one-end joint forming portion and an other-end joint forming portion. The one-end joint forming portion includes a one-end first contact portion and a one-end second contact portion located on one side of the one-end first contact portion in an axial direction and extending in a circumferential direction beyond the one-end first contact portion. The other-end joint forming portion includes an other-end first contact portion and an other-end second contact portion located on the other side of the other-end first contact portion in the axial direction and extending in the circumferential direction beyond the other-end first contact portion. An inner diameter of the seal ring when the one-end first contact portion separates from the other-end second contact portion is less than an outer diameter of the valve element.