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.
Claims1
A thermodynamic valve for retaining vapours and gases and relieving pressure and vacuum, characterized in that it comprises two diaphragm rings (3a,3b) that act through the thermodynamic action of the positive and negative pressures inside the positive (4) and negative (5) chambers, fixed to one another by a screw thread, comprising a cap (2) provided with upward lateral openings screwed on the body of chamber (4), extra safety being imparted to the valve by a non-metallic rupture seal (1) fitted on the upper part of cap (2), further containing, positioned on the inner lower portion of valve chamber (5) a screw-threaded base (5.1) to be fixed to the fuel tank venting pipe (breathing) and provided with a stainless steel fire-break fabric (6) fixed by an O-ring (7) and further, a double safety fire-break fabric (4.1) positioned between the positive chamber (4) and the negative chamber (5).
Dependencies are inferred from the claim text.