Thermodynamic valve for retaining vapours and gases and relieving pressure and vacuum
OwnerMiguel Greyde Avila Diasinventor
Life of this patent
Estimating the term…
Abstract
A thermodynamic valve for retaining vapours and gases and relieving pressure and vacuum for use in the venting of tanks or reservoirs of combustible liquids (fluids), said valve comprising: upper diaphragm ring (3a) and lower diaphragm ring (3b) that act through the thermodynamic action of the positive and negative pressures inside positive pressure (4) and negative pressure (5) chambers fixed to one another, a cap (2) screwed on the body of positive pressure chamber (4) and having upwardly directed lateral openings and a rupture seal (1) fitted in the upper section of cap (2). A base (5.1) with an inner fire-break fabric (6) is positioned on the inner lower section of negative pressure chamber (5) and connected to the fuel tank venting pipe.
Claims3
A thermodynamic valve for retaining vapours and gases and relieving pressure and vacuum, characterized in that it comprises:
- an upper diaphragm ring (3a) and a lower diaphragm ring (3b) automatically modulated by a thermodynamic action of pressures in an interior of a positive pressure chamber (4) and a negative pressure chamber (5);
- a cap (2) with lateral openings directed upwards, said cap (2) being threaded on a body of said positive pressure chamber (4);
- a rupture seal (1) fitted on an upper part of said cap (2);
- a base (5.1) in a lower inner section of said negative pressure chamber (5), said base (5.1) being fixed to a vent pipe of a fuel tank, wherein an interior of said base (5.1) is provided with a first fire-break fabric (6) fixed by an O-ring (7);
- and
- e) a second fire-break fabric (4.1) positioned between said positive pressure chamber (4) and said negative pressure chamber (5).
Dependencies are inferred from the claim text.