To provide a screen nozzle that can change flow property.
A variable flow control nozzle 50 has a head 52, a tube 54, and a valve 56. The head is disposed adjacent an opening 22 and has a screen 60 for passage of fluid flow into and out of the head's interior. The tube extends from the head through the opening and secures the head thereto. A tube passage communicates the interior of the head with the other side of the opening. The valve disposed in the passage has a first condition permitting first fluid flow from the passage to the interior of the head and has a second condition permitting second fluid flow from the interior to the passage. The second fluid flow may be greater than the first fluid flow. The tube can have first and second tube members 70, 80 with different internal diameters, and the valve can use a ball 90 movable between positions in the tube members.
| JP2021116900 | BREAKAGE TYPE GAS RELEASE PREVENTER |
| JP4499021 | Transmission device for vehicles |
MAXSON RICHARD C
| JPH11314015A | 1999-11-16 | |||
| JPH08145236A | 1996-06-07 | |||
| JPS639574U | 1988-01-22 | |||
| JPH10217990A | 1998-08-18 | |||
| JPS57109383U | 1982-07-06 |
Hideo Hayashi
Ryohei Kaizuka