公开(公告)号：US20210301930A1

公开(公告)日：2021-09-30

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: 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：US20230050115A1

公开(公告)日：2023-02-16

申请号：US17972810

申请日：2022-10-25

Applicant: DENSO CORPORATION

Inventor： Kousei TAKAGI ,  Tadashi IKEMOTO ,  Naohito SEKO

IPC: F16K11/085

Abstract: A valve, which is rotated about a rotational axis, includes a valve outer peripheral portion. The valve outer peripheral portion has a valve inflow port for supplying fluid to a flow passage of the valve outer peripheral portion and valve outflow ports for discharging the fluid from the flow passage. The valve outflow ports include: a main outflow port which is configured to communicate with a whole of a seat opening of a valve seat; and a plurality of intermediate outflow ports, each of which is configured to communicate with a portion of the seat opening. An axial dimension of each intermediate outflow port, which is measured in an axial direction of the rotational axis, is smaller than an axial dimension of the seat opening, which is measured in the axial direction. The axial dimension of each intermediate outflow port is progressively changed in a circumferential direction.

公开(公告)号：US20180031132A1

公开(公告)日：2018-02-01

申请号：US15551336

申请日：2016-03-24

Applicant: DENSO CORPORATION

Inventor： Kentaro YUTANI ,  Takumi KATAOKA ,  Naohito SEKO

IPC: F16K5/20 ,  F16K5/06

CPC classification number: F16K5/202 ,  F16K5/0605 ,  F16K5/0668 ,  F16K5/0678 ,  F16K5/0689 ,  F16K5/201 ,  F16K37/0041

Abstract: A valve device includes: a valve having a ball surface having a convex spherical shape, and a first opening opened in the ball surface to allow fluid to pass through; and a seat having an annular shape and opposing the ball surface to be in sliding contact, the seat being pressed against the ball surface, the seat having a second opening to communicate with the first opening. The seat has a sealing surface in a sliding contact with the ball surface at a valve closed time when the ball surface and the second opening overlap with each other, and a seat contact surface in a sliding contact with an opening inner wall surface or an opening end surface of the first opening at a valve opened time when the first opening and the second opening overlap with each other.

公开(公告)号：US20130228141A1

公开(公告)日：2013-09-05

申请号：US13782189

申请日：2013-03-01

Applicant: DENSO CORPORATION

Inventor： Naohito SEKO ,  Yoshiaki YAMAMOTO

IPC: F01P7/00

CPC classification number: F01P7/00 ,  F01P7/16

Abstract: A cooling device for an internal combustion engine includes a jacket provided in the engine such that a coolant is capable of flowing through the jacket, a flow control valve connected to at least one of an inlet side of the jacket and an outlet side of the jacket to adjust a flow rate of the coolant. The flow control valve includes a housing having a flow passage communicating with the jacket such that the coolant is capable of flowing through the flow passage, a valve body arranged in the housing to open or close the flow passage, and a heat transfer member contacting the engine and a part of the housing accommodating the valve body to transfer a heat from the engine to the housing.

Abstract translation: 一种用于内燃机的冷却装置，包括设置在发动机中的夹套，使得冷却剂能够流过套管，流量控制阀连接到护套的入口侧和护套的出口侧中的至少一个 以调节冷却剂的流量。 流量控制阀包括壳体，该壳体具有与夹套连通的流动通道，使得冷却剂能够流过流动通道;阀体，布置在壳体中以打开或关闭流动通道;以及传热构件， 发动机和容纳阀体的壳体的一部分以将热量从发动机传递到壳体。

公开(公告)号：US20200284362A1

公开(公告)日：2020-09-10

申请号：US16805982

申请日：2020-03-02

Applicant: DENSO CORPORATION

Inventor： Koji HASHIMOTO ,  Naohito SEKO ,  Ryo SANO

IPC: F16K11/087 ,  F16K5/06 ,  F16K31/12

Abstract: A sleeve member of a movable unit has a first pressure receiving surface and a second pressure receiving surface. The first pressure receiving surface receives a first fluid pressure in an axial direction opposite to a biasing force of a spring, when a valve member closes a seat opening portion. The second pressure receiving surface receives a second fluid pressure in the same axial direction to a direction of the biasing force of the spring, when the valve member closes the seat opening portion. A first surface area and a second surface area are made to be equal to each other. Each of the first and the second surface areas is an area of a projected portion on a virtual plane perpendicular to the axial direction. Each of the projected portions is obtained when each of the first and the second pressure receiving surfaces is projected to the virtual plane.

公开(公告)号：US20190186641A1

公开(公告)日：2019-06-20

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 ,  F16K31/04 ,  F16K5/20 ,  F16K11/087

CPC classification number: F16K5/0663 ,  F16K5/0689 ,  F16K5/201 ,  F16K11/0876 ,  F16K31/041

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：US20180340618A1

公开(公告)日：2018-11-29

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 ,  F16K31/04 ,  F16K5/20 ,  F16K11/087

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：US20170009894A1

公开(公告)日：2017-01-12

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: F16K5/06

CPC classification number: F16K5/0663 ,  F16K5/0689 ,  F16K5/201 ,  F16K11/0876 ,  F16K31/041

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.

Abstract translation: 一种阀装置，包括：球形球，其具有形成为凸形球面的球面; 以及具有形成为凹球面的座面的阀座。 座面被压在球面上。 通过将限定在球阀中的阀开口和限定在阀座中的阀座开口彼此连通来旋转球阀来打开阀，并且通过停止通信来关闭阀。 座圈开口φ2的直径比阀开口φ1的直径小。 球面R1的曲率半径小于或等于座面的曲率半径为R2。