Fast closing valve for gaseous and liquid media
OwnerManfred Scherwarthinventor
Life of this patent
Estimating the term…
Abstract
A fast closing valve for gaseous and liquid medium closes, against a resilient force, upon the occurrence of a sudden pressure difference in the conduit, specially aeration conduits for use in anti-aircraft protection shelters. The main part is a valve-flap having the form of a dihedron (10), which is mounted, pivoting easily within a chamber (9) about the axis of the vertex of the dihedron (axis 11). On either side of the valve-flap (10a, 10b) are associated deviation openings (7,8) of the chamber (9) which will be closed alternately by the pivoting of the flap (10). The flap (10) is normally held in a stable open position by a spring arrangement (14) until one or the other of the flap sides is subject to a pressure wave causing the closure of one or the other of the openings (7,8).
Claims10
A rapid acting valve for a fluid media which closes in response to a sudden pressure difference in a fluid flow line, said valve comprising:
- a valve housing having a fluid passage therethrough;
- a baffle plate positioned in said housing transverse to the flow of fluid media and dividing said housing into two antechambers;
- a common valve chamber in fluid communication with each of said antechambers, each antechamber opening into said common valve chamber through a separate diverting orifice;
- an angular valve disk rotatably mounted in said common valve chamber with the axis of rotation of said valve disk lying in the plane formed by said baffle plate and between the diverting orifices;
- said valve disk including at least two leg portions, at least one leg portion being inclined with respect to the other and having a configuration which conforms to and closes an associated diverting orifice;
- means for spring biasing said valve disk in a rotationally stable open position with both of said leg portions being inclined with respect to the plane passing through the associated diverting orifices whereby a pressure pulse resulting from pressure differences within the line is intercepted by said baffle plate thereby reducing the resulting pressure increase which impacts one of said inclined legs through an associated diverting orifice to rotate said disk against the force of said spring bias means thus closing said valve.
Dependencies are inferred from the claim text.