Homogenizing valve for removing fibers from fibrous fluids
AssigneeGea Mechanical Equipment Italia S.P.A.
InventorsLuca Salvarani, Silvia Grasselli, Leonardo Maggi
Life of this patent
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Abstract
Homogenizing valve (1) at high pressure, particularly for application to fibrous fluids, comprising: a valve body (2); a passage head (15) integrally joined to the valve body (2); an assembled organ (27) formed of two pistons (5, 6) and a striking head (16), which is axially mobile inside a through hole of the valve body (2), so that the striking head (16) defines with the passage head (15) an interspace (18) of passage of the fluid, the assembled organ (27) being rotatable thanks to the lower cogged profile which engages in a cogged tool (20).
Claims9
Homogenising valve (1) with axial symmetry for application to fibrous fluids, comprising:
- a valve body (2) defining a through hole having an axial direction with respect to the valve body (2);
- a first piston (5) housed in said through hole;
- a second piston (6) housed in said through hole and integrally coupled to said first piston (5);
- an inlet (7) for fluid at high pressure;
- an outlet (8) for homogenised fluid at low pressure;
- a first annular chamber (9) between said valve body (2) and said first piston (5), said inlet (7) being connected to said first annular chamber (9) to transfer to said first annular chamber (9) the fluid at high pressure;
- a second annular chamber (10) obtained between said valve body (2) and said second piston (6), said outlet (8) being connected to said second annular chamber (10) to receive from said second annular chamber (10) the fluid at low pressure;
- a third annular chamber (11) afforded between said valve body (2) and said first piston (5), said third annular chamber (11) being arranged downstream of said first annular chamber (9) with respect to the flow of the fluid and being in fluid communication with said first annular chamber (9) so as to receive the fluid at high pressure;
- an annular passage head (15) interposed between said first annular chamber (9) and said second annular chamber (10),
- an annular striking head (16) integrally coupled to said first piston (5) and to said second piston (6) so as to form an assembled organ (27);
- where said assembled organ (27) is movable in the axial direction towards the annular passage head (15) so that said annular striking head (16) defines with said annular passage head (15) an interspace (18) of passage of the fluid from said first annular chamber (9) to said second annular chamber (10),
- characterised in that:
- said first piston (5) presents a free end (5a) having a cogged profile suitable for engaging a cogged tool or apparatus (20) so as to place said assembled organ (27) in rotation,
- wherein said first annular chamber (9) and said third annular chamber (11) define a composite volume tapered towards said interspace (18).
Dependencies are inferred from the claim text.