公开(公告)号：US11761552B2

公开(公告)日：2023-09-19

申请号：US17497107

申请日：2021-10-08

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Harada ,  Yuichiro Moritani ,  Takehiro Sugawara

IPC: F16K27/04 ,  F16K3/24

CPC classification number: F16K27/04 ,  F16K3/24 ,  F16K2200/30

Abstract: A valve device includes a housing, a valve member, a valve seat member, a fixing member for fixing the valve seat member to the housing, and a housing-side seal portion. The housing has a valve chamber, and a housing-space inner wall forming a housing space communicating with the valve chamber. The housing-side seal portion blocks a flow of fluid between the valve seat member and the housing-space inner wall. The valve seat member has a tubular portion and a flange portion connected to the tubular portion. The flange portion is interposed between a facing surface of the housing-space inner wall and the fixing member in an axial direction. The fixing member is fixed to the housing-space inner wall in an airtight state. The housing-side seal portion is made of a rubber material and is interposed between the flange portion and the fixing member.

公开(公告)号：US09696732B2

公开(公告)日：2017-07-04

申请号：US15157659

申请日：2016-05-18

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Harada ,  Yuichiro Miura ,  Hirofumi Onodera ,  Kimio Uchida

IPC: F16K31/122 ,  G05D16/10 ,  F16K31/06 ,  F02M25/08 ,  G05D16/20

CPC classification number: G05D16/106 ,  B60K15/03519 ,  B60K2015/03302 ,  B60K2015/03585 ,  F02M25/0836 ,  F02M25/0854 ,  F16K1/526 ,  F16K31/06 ,  F16K31/0644 ,  F16K31/1221 ,  F16K31/1226 ,  G05D16/103 ,  G05D16/2086

Abstract: A valve device includes a valve seat forming member, a case, a first O-ring, and a second O-ring. The valve seat forming member is fit into a passage defining and forms a valve seat. The case houses an electromagnetic solenoid and is connected to the passage defining member. The first O-ring is interposed between an inner circumferential surface of the passage defining member and an outer circumferential surface of the valve seat forming member. The first O-ring prohibits the fluid from flowing through a space between the passage defining member and the valve seat forming member when the main valve body seats on the valve seat. The second O-ring is interposed between the case and the passage defining member. The second O-ring prohibits the fluid from flowing from the passage to an outside of the passage defining member.

公开(公告)号：US09683665B2

公开(公告)日：2017-06-20

申请号：US14713200

申请日：2015-05-15

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Harada ,  Yuichiro Miura

IPC: F02M25/08 ,  F16K1/52 ,  F16K31/06 ,  F16K31/12

CPC classification number: F16K1/526 ,  B60K15/03504 ,  B60K15/03519 ,  B60K2015/03302 ,  B60K2015/03576 ,  B60K2015/03585 ,  F02M25/08 ,  F02M25/0836 ,  F02M25/089 ,  F02M2025/0845 ,  F16K1/34 ,  F16K1/52 ,  F16K27/029 ,  F16K31/06 ,  F16K31/0655 ,  F16K31/12 ,  Y10T137/7754 ,  Y10T137/88062

Abstract: A first valve chamber, which receives a valve assembly of a tank closing solenoid valve, and a second valve chamber, which receives a valve assembly of a pressure responsive valve, are formed between a first flow passage and a second flow passage of a first housing by fitting a second peripheral wall of a second housing into a radially inner side of a first peripheral wall of the first housing. Thereby, it is not required to heat-weld and bond between a connecting end surface of the first housing and a connecting end surface of the second housing.

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.