公开(公告)号：US20190277236A1

公开(公告)日：2019-09-12

申请号：US16291249

申请日：2019-03-04

Applicant: DENSO CORPORATION

Inventor： Hiroyuki HARADA ,  Takanori KITO ,  Keita IMAI ,  Makoto SAIZEN

IPC: F02M61/18 ,  F02M51/06 ,  F02D41/40 ,  F02M61/16

Abstract: An injection hole body has an injection hole to inject fuel for causing combustion in an internal combustion engine. A valve body is unseated from and seated on a seating surface of the injection hole body. The injection hole body and the valve body form a fuel passage therebetween to communicate with an inflow port of the injection hole. The fuel passage is opened and closed by unseating and seating of the valve body. A resilient member generates a resilient force to urge the valve body toward the seating surface. A seat angle is an angle between two straight lines appearing in a cross section of the seating surface, the cross section including a center axis of the valve body. The seat angle is 90 degrees or less.

公开(公告)号：US20220025989A1

公开(公告)日：2022-01-27

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

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：US20220356949A1

公开(公告)日：2022-11-10

申请号：US17868095

申请日：2022-07-19

Applicant: DENSO CORPORATION

Inventor： Hiroyuki HARADA ,  Yuushi TSUDUKI ,  Noriyuki INAGAKI

IPC: F16K1/226

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.

公开(公告)号：US20150330514A1

公开(公告)日：2015-11-19

申请号：US14713200

申请日：2015-05-15

Applicant: DENSO CORPORATION

Inventor： Hiroyuki HARADA ,  Yuichiro MIURA

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

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.

Abstract translation: 接收阀闭合电磁阀的阀组件的第一阀室和接收压力响应阀的阀组件的第二阀室形成在第一壳体的第一流动通道和第二流动通道之间， 通过将第二壳体的第二周壁装配到第一壳体的第一周壁的径向内侧。 因此，不需要在第一壳体的连接端面与第二壳体的连接端面之间进行热焊接。

公开(公告)号：US20160370812A1

公开(公告)日：2016-12-22

申请号：US15157659

申请日：2016-05-18

Applicant: DENSO CORPORATION

Inventor： Hiroyuki HARADA ,  Yuichiro MIURA ,  Hirofumi ONODERA ,  Kimio UCHIDA

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

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.

Abstract translation: 阀装置包括阀座形成部件，壳体，第一O形环和第二O形环。 阀座形成构件配合到限定并形成阀座的通道中。 壳体容纳电磁螺线管并且连接到通道限定构件。 第一O形环插入在通道限定构件的内周表面和阀座形成构件的外周表面之间。 当主阀体位于阀座上时，第一O形环禁止流体流过通道限定构件和阀座形成构件之间的空间。 第二O形环插入在壳体和通道限定构件之间。 第二O形环禁止流体从通道流到通道限定构件的外部。