JP2010236684A5

JP2010236684A5 -

Info

Publication number: JP2010236684A5
Application number: JP2009088104A
Authority: JP
Filing date: 2009-03-31
Publication date: 2012-03-01

Description

本願の請求項４で特定される発明は、請求項１〜３のいずれか１項に記載の流路開閉弁において、前記第２の孔部における前記室側の開口部が、前記第１の孔部における前記室側の開口部より、広径であることを特徴とする。
The invention specified in claim 4 of the present application is the flow path on-off valve according to any one of claims 1 to 3, wherein the chamber-side opening in the second hole portion is the first opening. The opening is wider than the opening on the chamber side in the hole.

Claims

A ball valve with a through hole;
A valve main body having a fluid inlet and a fluid outlet provided with a chamber for rotatably containing the ball valve;
A shaft that rotates the ball valve in the chamber to cut off communication between the fluid inlet and the fluid outlet;
An actuator that rotates the shaft axis,
The ball valve is provided with a first hole communicating the chamber and the through hole,
The valve body is provided with a second hole portion that communicates the chamber and the outside of the valve body, and the second hole portion is closed by a detachable plug member,
The flow path on-off valve, wherein the first and second holes are formed coaxially.

The flow path opening / closing valve according to claim 1,
The flow path opening / closing valve, wherein the first hole portion has a tapered shape so that the through hole side has a wide diameter.

In the flow path on-off valve according to claim 1 or 2,
The flow path on-off valve characterized in that the second hole portion has an opening on the outside of the valve main body having a larger diameter than the opening on the chamber side.

In the flow path on-off valve according to any one of claims 1 to 3,
The opening on the chamber side in the second hole is
From the opening on the chamber side in the first hole,
A flow path opening / closing valve having a wide diameter.

In the flow path on-off valve according to any one of claims 1 to 4,
The flow path opening / closing valve is an EGR valve.

A ball valve with a through hole;
A valve main body having a fluid inlet and a fluid outlet provided with a chamber for rotatably accommodating the ball valve;
A shaft that rotates the ball valve in the room to cut off the fluid inlet and the fluid outlet;
The ball valve is provided with a first hole communicating the chamber and the through hole,
The valve body is a method of assembling a flow path opening / closing valve provided with a second hole portion that communicates the chamber and the outside of the valve body,
A first step of inserting a rod-like member into the first and second holes to position and fix the ball valve in the chamber;
After the first step, a second step of connecting and fixing the tip of the shaft shaft to the ball valve;
After the second step, a third step of extracting the rod-shaped member from the first and second holes,
After the third step, a fourth step of fitting the plug member into the second hole portion to close the second hole portion;
A method for assembling a flow path opening / closing valve characterized by comprising: