Title:
バルブ装置
Document Type and Number:
Japanese Patent JP6432433
Kind Code:
B2
Abstract:
A valve device includes: a ball valve (1) having a ball face (1a) shaped in a convex spherical surface; and a valve seat (2) having a seat face (2a) 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 (1b) defined in the ball valve and a seat opening (2b) defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ¦2 is smaller than a diameter of the valve opening ¦1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.
Inventors:
Naoko Seko
Shinichi Yokoyama
Yoshiaki Yamamoto
Ryo Sano
Nakano Yuji
Shinichi Yokoyama
Yoshiaki Yamamoto
Ryo Sano
Nakano Yuji
Application Number:
JP2015086608A
Publication Date:
December 05, 2018
Filing Date:
April 21, 2015
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F16K5/06
Domestic Patent References:
| JP9178004A | ||||
| JP2003515078A |
Attorney, Agent or Firm:
Kenji Ishiguro
Shinji Hase
Shinji Hase