F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 25/00 (2006.01) F16K 25/02 (2006.01) F16K 31/44 (2006.01) F23G 7/00 (2006.01) F23G 7/06 (2006.01)
Patent
CA 2381388
A hermetic-seal valve for a thermal-regeneration plant for depuration of emissions, where the valve is set in a duct (13) which connects an inlet pipe (28) for entry of an emission that is to be treated or an outlet pipe (29) for exit of an emission that has been treated, and a treatment chamber (22), said valve comprising an obturator seating (14), an obturator (16) having the shape of a truncated cone for opening and closing the seating (14), and means (18) for actuating the obturator (16) via an interposed stem (20), in the said valve the seating (14) consisting of a ring (30), one internal top end of which has a circumferential undercut (50) shaped like a truncated cone and provided with a series of radial holes (54) connected to an external fan or to the outside environment (56, 57), the undercut (50) being provided with a first edge (52), which has a diameter equal to the diameter of the obturator seating (14) and a second edge (53), located above the first edge and of larger diameter, where both edges (52, 53) engage with the obturator (16) shaped like a truncated cone when the stem (20) is displaced.
Radaelli Angelo
Torghele Stefano
Amati Renzo
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Radaelli Angelo
Torghele Stefano
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