公开(公告)号：US10746319B2

公开(公告)日：2020-08-18

申请号：US16385011

申请日：2019-04-16

Applicant: DENSO CORPORATION

Inventor： Hirofumi Onodera

IPC: F16K31/50 ,  F02M25/08 ,  F16K31/04

Abstract: A valve device includes a valve housing, a valve member, an engaging portion, a valve member side thread portion, a driving portion side thread portion, a driving portion, a first biasing member, a second biasing member, and a second biasing member support portion. The valve housing has a plurality of through holes through which a fluid flows, a valve seat formed around the first through holes of the plurality of through holes, and a valve chamber that communicates the plurality of through holes. In the valve device, the first through hole is formed on the movement axis of the valve member, and the second through hole is formed in a radially outward direction of the valve member. A distance between the second biasing member support portion and the valve seat is longer than a distance between the valve member and the valve seat.

公开(公告)号：US09720420B2

公开(公告)日：2017-08-01

申请号：US14994215

申请日：2016-01-13

Applicant: DENSO CORPORATION

Inventor： Kimio Uchida ,  Hirofumi Onodera

IPC: G05D7/01 ,  F16K1/32 ,  B60K15/035 ,  F02M25/08

CPC classification number: G05D7/01 ,  B60K15/03504 ,  F02M25/08 ,  F16K1/32 ,  F16K1/34 ,  F16K31/0655 ,  F16K31/0686 ,  F16K31/0693 ,  F16K47/08 ,  G05D7/0133

Abstract: An annular valve seat is projected radially inward from a passage wall. A valve element is located on the upstream side of the valve seat. A spring biases the valve element toward the upstream side. The valve element has a through hole to pass fluid between the upstream side and the downstream side when the valve element is seated on the valve seat. The valve element switches between a large opening state, in which the valve element is lifted from the valve seat to pass fluid around an outer circumferential periphery of the valve element and to pass through the through hole, and a small opening state, in which the valve element is seated on the valve seat to pass fluid through the through hole. The valve element is supported and slidable on a guide surface, which is formed on the passage wall, at the outer circumferential periphery.

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：US20150027571A1

公开(公告)日：2015-01-29

申请号：US14299403

申请日：2014-06-09

Applicant: DENSO CORPORATION

Inventor： Ryoyu Kishi ,  Yuichiro Miura ,  Hirofumi Onodera

IPC: B67D7/04 ,  F16K31/02 ,  F16K15/18

CPC classification number: F16K31/02 ,  B60K15/03519 ,  B60K2015/03302 ,  F02M25/0836 ,  F02M2025/0845 ,  F16K15/18 ,  F16K17/30 ,  F16K27/029 ,  F16K31/0655 ,  G05D16/103 ,  G05D16/2086 ,  Y10T137/88054

Abstract: A first hole is connected through a first fluid chamber to an inflow hole. A first valve seat is formed around the first hole. A second fluid chamber is connected through a second hole to the first hole. An outflow hole is connected to the second fluid chamber. A second valve seat is formed around the second hole. A third valve seat is formed around the outflow hole. A first valve element is movable in the first fluid chamber to make contact with the first valve seat. A second valve element is movable in the second fluid chamber to make contact with the second valve seat or the third valve seat. A biasing member biases the second valve element toward the second valve seat. An outer peripheral passage is formed between an outer periphery of the second valve element and the second housing to enable flow therethrough.

Abstract translation: 第一孔通过第一流体室连接到流入孔。 第一阀座围绕第一孔形成。 第二流体室通过第二孔连接到第一孔。 流出孔连接到第二流体室。 第二阀座围绕第二孔形成。 第三阀座围绕流出孔形成。 第一阀元件可在第一流体室中移动以与第一阀座接触。 第二阀元件可在第二流体室中移动以与第二阀座或第三阀座接触。 偏置构件朝向第二阀座偏压第二阀元件。 在第二阀体的外周和第二壳体之间形成有外周通路，以使其能够流过。

公开(公告)号：US10457267B2

公开(公告)日：2019-10-29

申请号：US15838737

申请日：2017-12-12

Applicant: DENSO CORPORATION

Inventor： Hirofumi Onodera ,  Kunio Namba ,  Yasuo Kato

IPC: G01M15/04 ,  B60W10/24 ,  B60K28/10 ,  B60K15/035 ,  F02D41/22 ,  B60K15/05 ,  B60K15/03 ,  F02M25/08

Abstract: A controller controls a valve device for opening and closing of a passage to control a flow of evaporative fuel evaporating and flowing from a fuel tank. The valve device includes a valve body housed in the passage to open and close the passage, a biasing member biasing the valve body to close the passage, and a driver driving the valve body to open the fuel passage. The controller includes a detector detecting load of the driver and a determiner to determine the position of the valve body. The determiner determines that the passage is open when a magnitude of the change of the driver load is equal to or greater than a threshold value. The controller accurately detects an open valve position without detecting an internal pressure change of the fuel tank.

公开(公告)号：US20130134339A1

公开(公告)日：2013-05-30

申请号：US13678663

申请日：2012-11-16

Applicant: DENSO CORPORATION

Inventor： Yuichiro Miura ,  Hirofumi Onodera

IPC: F16K31/06

CPC classification number: F16K31/0655 ,  F02D41/0032 ,  F02M25/0836 ,  F02M2025/0845 ,  F16K31/0693

Abstract: An electromagnetic valve includes a flow passage, a valve member, an actuator having a coil and a movable core, an intermediate member, a connecting member, a housing, and a dividing unit. The housing includes a hollow part between the housing and the actuator. The hollow part communicates with the flow passage. The dividing unit includes a through hole which passes through the dividing unit in its axial direction. The dividing unit divides the hollow part between a communicating chamber that is capable of communicating with the flow passage, and a cancel chamber that is cut off from an outside thereof. The intermediate member includes a communicating passage between the intermediate member and the movable core. The communicating passage communicates between the flow passage and the cancel chamber via the through hole and the communicating chamber.

Abstract translation: 电磁阀包括流路，阀构件，具有线圈和可动铁芯的致动器，中间构件，连接构件，壳体和分隔单元。 壳体包括壳体和致动器之间的中空部分。 中空部与流路连通。 分割单元包括沿其轴向穿过分隔单元的通孔。 分割单元将中空部分与能够与流路连通的连通室与从外部切断的取消室进行分割。 中间构件包括在中间构件和可动芯之间的连通通道。 连通通道经由通孔和连通室在流路和取消室之间连通。

公开(公告)号：US09494254B2

公开(公告)日：2016-11-15

申请号：US14619333

申请日：2015-02-11

Applicant: DENSO CORPORATION

Inventor： Hirofumi Onodera ,  Yuichiro Miura

IPC: F16K31/12 ,  F16K39/02 ,  F16K31/06 ,  F02M25/08

CPC classification number: F16K39/024 ,  F02M25/0836 ,  F02M2025/0845 ,  F16K31/0655

Abstract: A two-stage electro-magnetic valve maintains a pressing force applied onto a switch valve body from a press member after a lifting of an open-close valve body from a valve seat by an introduction of a pressure of a valve chamber. In such manner, the switch valve body need not be put in a pressure receiving state when the switch valve body is completely closed. In other words, it is not necessary for a pressure receiving diameter of the switch valve body to be smaller than a pressure receiving diameter of the open-close valve body. Such configuration increases design freedom of the pressure receiving diameter for the open-close valve body because it separates the diameter of the valve body from a diameter restriction of the switching valve body, which allows both valve bodies to have the same diameter, which maximizes the effect of a pressure cancel mechanism.

Abstract translation: 两级电磁阀通过引入阀室的压力而从打开关闭阀体从阀座提起后，保持从压力构件施加到开关阀体上的按压力。 以这种方式，当开关阀体完全关闭时，开关阀体不需要处于受压状态。 换句话说，开关阀体的受压直径不必小于开关阀体的受压直径。 这种构造增加了开关阀体的压力接收直径的设计自由度，因为它将阀体的直径与切换阀体的直径限制分开，这允许两个阀体具有相同的直径，这使得阀体的直径最大化 压力消除机构的作用。

公开(公告)号：US09346351B2

公开(公告)日：2016-05-24

申请号：US14315650

申请日：2014-06-26

Applicant: DENSO CORPORATION

Inventor： Hirofumi Onodera

IPC: F17D1/00 ,  B60K15/035 ,  B60K15/03

CPC classification number: B60K15/03519 ,  B60K2015/03296 ,  B60K2015/03514 ,  Y10T137/87265

Abstract: A valve device includes a first passage opened by a first valve member, a second passage opened by a second valve member, and a specific chamber in which an asymmetrical state is caused. When the second valve member is open, escape fluid flows through the specific chamber just before flowing into a second passage and collides a collision part located in the specific chamber. The escape fluid flowing in the specific chamber collides the collision part and is divided into two divided flows, and the two divided flows are joined again at downstream of the collision part. In the asymmetrical state, a difference is caused in a pressure loss between the two divided flows. By the asymmetrical state, a pressure loss as an entire of the specific chamber decreases, and frequency in using a valve mechanism can be reduced. Therefore, the valve mechanism can be used longer without omitting the specific chamber.

Abstract translation: 阀装置包括由第一阀构件打开的第一通道，由第二阀构件打开的第二通道，以及引起不对称状态的特定室。 当第二阀构件打开时，逸出流体在流入第二通道之前流过特定室，并碰撞位于特定室中的碰撞部件。 在特定室中流动的排出流体碰撞碰撞部分并分成两个分开的流动，并且两个分流在再次在碰撞部分的下游连接。 在非对称状态下，在两个分流之间的压力损失中产生差异。 通过不对称状态，作为整个特定室的压力损失减小，并且可以减少使用阀机构的频率。 因此，阀机构可以使用更长时间而不忽略特定的室。

公开(公告)号：US09068667B2

公开(公告)日：2015-06-30

申请号：US13678663

申请日：2012-11-16

Applicant: DENSO CORPORATION

Inventor： Yuichiro Miura ,  Hirofumi Onodera

IPC: F16K31/06 ,  F02D41/00 ,  F02M25/08

CPC classification number: F16K31/0655 ,  F02D41/0032 ,  F02M25/0836 ,  F02M2025/0845 ,  F16K31/0693

Abstract: An electromagnetic valve includes a flow passage, a valve member, an actuator having a coil and a movable core, an intermediate member, a connecting member, a housing, and a dividing unit. The housing includes a hollow part between the housing and the actuator. The hollow part communicates with the flow passage. The dividing unit includes a through hole which passes through the dividing unit in its axial direction. The dividing unit divides the hollow part between a communicating chamber that is capable of communicating with the flow passage, and a cancel chamber that is cut off from an outside thereof. The intermediate member includes a communicating passage between the intermediate member and the movable core. The communicating passage communicates between the flow passage and the cancel chamber via the through hole and the communicating chamber.

Abstract translation: 电磁阀包括流路，阀构件，具有线圈和可动铁芯的致动器，中间构件，连接构件，壳体和分隔单元。 壳体包括壳体和致动器之间的中空部分。 中空部与流路连通。 分割单元包括沿其轴向穿过分隔单元的通孔。 分割单元将中空部分与能够与流路连通的连通室与从外部切断的取消室进行分割。 中间构件包括在中间构件和可动芯之间的连通通道。 连通通道经由通孔和连通室在流路和取消室之间连通。

公开(公告)号：US09840986B2

公开(公告)日：2017-12-12

申请号：US14861277

申请日：2015-09-22

Applicant: DENSO CORPORATION

Inventor： Hirofumi Onodera ,  Yuichiro Miura

IPC: F02M25/08 ,  F16K1/32 ,  F16K1/52 ,  F16K1/54 ,  F16K31/06

CPC classification number: F02M25/0836 ,  F02M25/089 ,  F02M2025/0845 ,  F16K1/526 ,  F16K1/54 ,  F16K31/0655 ,  F16K31/0686

Abstract: A two-stage changeover valve is provided in a vaporized fuel passage connected between a fuel tank and a canister. A valve member is movably accommodated in a fluid passage formed in a valve housing. A valve seat is formed at an inner peripheral wall of the valve housing, so that the valve member is operatively seated on the valve seat. A restricted communication hole is formed in the valve member, so that an upstream side and a downstream side of the valve member are communicated with each other, even when the valve member is seated on the valve seat. The restricted communication hole is formed in a Laval-nozzle shape, so that vaporized fuel passing through the restricted communication hole is accelerated. As a result, a process for depressurizing inner pressure of the vaporized fuel in the fuel tank can be carried out in a shorter time.