公开(公告)号：US11067180B2

公开(公告)日：2021-07-20

申请号：US16282332

申请日：2019-02-22

Applicant: DENSO CORPORATION

Inventor： Naohito Seko ,  Yoshiaki Yamamoto ,  Shinichi Yokoyama ,  Yuuji Nakano ,  Ryo Sano

IPC: F16K5/06 ,  F16K11/087 ,  F16K5/20 ,  F16K31/04

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ϕ2 is smaller than a diameter of the valve opening ϕ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

公开(公告)号：US09145973B2

公开(公告)日：2015-09-29

申请号：US14158114

申请日：2014-01-17

Applicant: DENSO CORPORATION

Inventor： Shinichi Yokoyama

IPC: F16K25/00 ,  F16K5/06

CPC classification number: F16K5/0663 ,  F16K5/0689

Abstract: A rotative member has a first passage and a first surface. A tubular member has a second passage and a concave spherical surface. The second passage is communicable with the first passage according to a rotation angle of the rotative member. The rotative member is rotatable and slidable on the concave spherical surface to form a seal between the rotative member and the tubular member when the concave spherical surface is in pressure contact with the first surface on application of a biasing force. A biasing force application member applies the biasing force to the tubular member. The biasing force application member has a second surface, which is in contact with the tubular member and slidable relative to the tubular member.

Abstract translation: 旋转构件具有第一通道和第一表面。 管状构件具有第二通道和凹形球形表面。 第二通道可根据旋转构件的旋转角度与第一通道连通。 当凹形球形表面在施加偏压力时与第一表面压力接触时，旋转构件可在凹球面上旋转并滑动以在旋转构件和管状构件之间形成密封。 偏置力施加构件将偏压力施加到管状构件。 偏压力施加构件具有第二表面，该第二表面与管状构件接触并且可相对于管状构件滑动。

公开(公告)号：US10066751B2

公开(公告)日：2018-09-04

申请号：US15121201

申请日：2015-06-23

Applicant: DENSO CORPORATION

Inventor： Naohito Seko ,  Yoshiaki Yamamoto ,  Shinichi Yokoyama ,  Yuuji Nakano ,  Ryo Sano

IPC: F16K31/04 ,  F16K11/087 ,  F16K5/06 ,  F16K5/20

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening Φ2 is smaller than a diameter of the valve opening Φ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

公开(公告)号：US20140264127A1

公开(公告)日：2014-09-18

申请号：US14153385

申请日：2014-01-13

Applicant: DENSO CORPORATION

Inventor： Shinichi Yokoyama

IPC: F16K5/06

CPC classification number: F16K5/0605 ,  F16K5/12

Abstract: A passage forming portion has a first opening of a first passage. A valve element has a second passage of a second opening and a slidable surface slidable relative to an opening periphery of the first opening. The valve element rotates to increase an overlap region, in which the first opening overlaps with the second opening, to communicate the first passage with the second passage to increase a flow quantity of fluid between the first passage and the second passage. A flow quantity retention unit is equipped in the valve element to retain the flow quantity constantly regardless of a rotation angle in a range from an angle, at which the slidable surface starts to open the first opening, to a predetermined rotation angle.

Abstract translation: 通道形成部分具有第一通道的第一开口。 阀元件具有第二开口的第二通道和相对于第一开口的开口周边可滑动的滑动表面。 阀元件旋转以增加重叠区域，其中第一开口与第二开口重叠，以使第一通道与第二通道连通，以增加第一通道和第二通道之间的流体流量。 流量保持单元装配在阀元件中，以保持流量恒定地与从滑动表面开始打开第一开口的角度的旋转角度到预定旋转角度。

公开(公告)号：US11608903B2

公开(公告)日：2023-03-21

申请号：US17345082

申请日：2021-06-11

Applicant: DENSO CORPORATION

Inventor： Naohito Seko ,  Yoshiaki Yamamoto ,  Shinichi Yokoyama ,  Yuuji Nakano ,  Ryo Sano

IPC: F16K11/087 ,  F01P7/14 ,  F16K5/06 ,  F16K5/20 ,  F16K31/04

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening Φ2 is smaller than a diameter of the valve opening Φ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

公开(公告)号：US10808848B2

公开(公告)日：2020-10-20

申请号：US16051517

申请日：2018-08-01

Applicant: DENSO CORPORATION

Inventor： Naohito Seko ,  Yoshiaki Yamamoto ,  Shinichi Yokoyama ,  Yuuji Nakano ,  Ryo Sano

IPC: F16K5/06 ,  F16K5/20 ,  F16K11/087 ,  F16K31/04

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ϕ2 is smaller than a diameter of the valve opening ϕ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

公开(公告)号：US20140291566A1

公开(公告)日：2014-10-02

申请号：US14158114

申请日：2014-01-17

Applicant: DENSO CORPORATION

Inventor： Shinichi Yokoyama

IPC: F16K5/06

CPC classification number: F16K5/0663 ,  F16K5/0689

Abstract: A rotative member has a first passage and a first surface. A tubular member has a second passage and a concave spherical surface. The second passage is communicable with the first passage according to a rotation angle of the rotative member. The rotative member is rotatable and slidable on the concave spherical surface to form a seal between the rotative member and the tubular member when the concave spherical surface is in pressure contact with the first surface on application of a biasing force. A biasing force application member applies the biasing force to the tubular member. The biasing force application member has a second surface, which is in contact with the tubular member and slidable relative to the tubular member.

Abstract translation: 旋转构件具有第一通道和第一表面。 管状构件具有第二通道和凹形球形表面。 第二通道可根据旋转构件的旋转角度与第一通道连通。 当凹形球形表面在施加偏压力时与第一表面压力接触时，旋转构件可在凹球面上旋转并滑动以在旋转构件和管状构件之间形成密封。 偏置力施加构件将偏压力施加到管状构件。 偏压力施加构件具有第二表面，该第二表面与管状构件接触并且可相对于管状构件滑动。