Title:
VALVE
Document Type and Number:
Japanese Patent JPS52145827
Kind Code:
A
Abstract:
The valve has a body with a through channel and a variable cross-section aperture controlling the flow. A deformable diaphragm (8-11) is in the through channel (2), separating it in two completely sealed chambers (17,18) with means for changing the size of variable cross-section aperture (15). A channel (20, 21) in the valve body (1) connects the two chambers, and a throttle (22, 25) is provided in this channel, so that operation of the throttle moves the point varying the variable cross-section aperture. The upper end of the diaphragm (10) is attached to a ring (8) clamped between the abutting faces (6, 7) of the valve body.
Inventors:
ANTONIO FUERENCHINO
Application Number:
JP6171977A
Publication Date:
December 05, 1977
Filing Date:
May 26, 1977
Export Citation:
Assignee:
PIRELLI
International Classes:
G05D7/01; F16K17/30; (IPC1-7): F16K1/54