Title:
FOUR-WAY VALVE PLUG VALVE STRUCTURE
Document Type and Number:
Japanese Patent JP2016223607
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a four-way valve plug valve structure capable of opening or closing an air inflow port through a specified rotation of a conical plug in a state in which a gas inflow port of a valve main body is closed.SOLUTION: A four-way valve plug valve structure A of the present invention is constructed in such a way that at least a width size of an inflow opening part 58 of a conical plug 55 is made narrower than that of a gas-inflow port 5 of the valve main body 2, the other edge of an inflow opening of the conical plug does not reach an air inflow port 11 under a state in which one edge of in-flow opening part of the conical plug is completely moved away from the gas inflow port under rotation of the conical plug and the gas-inflow port is closed, thereby the gas inflow port and the air inflow port of the valve main body are simultaneously closed under rotation of the conical plug.SELECTED DRAWING: Figure 5
Inventors:
KOBAYASHI KOICHI
Application Number:
JP2015113109A
Publication Date:
December 28, 2016
Filing Date:
June 03, 2015
Export Citation:
Assignee:
KVC CO LTD
International Classes:
F16K5/02; F16K51/00
Domestic Patent References:
| JPS6338773A | 1988-02-19 | |||
| JPH0542843U | 1993-06-11 | |||
| JPS56105165A | 1981-08-21 |
Attorney, Agent or Firm:
Kenichiro Matsuo
Yasuo Ichikawa
Yasuo Ichikawa