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：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。