公开(公告)号：EP1295034A1

公开(公告)日：2003-03-26

申请号：EP01957821.0

申请日：2001-06-01

Applicant: Dott.Ing. Mario Cozzani S.R.L.

Inventor： SCHIAVONE, Massimo ,  BIANCHI, Andrea

IPC: F04B39/10 ,  F16K15/02

CPC classification number: F04B39/1053 ,  F04B39/1013 ,  F04B39/102 ,  F04B39/1033 ,  F05C2225/12 ,  F16K15/026 ,  Y10T137/786

Abstract: Valve, preferably for compressors, comprising a seat (2; 4) in which there are formed one or more flow apertures (102; 104), positioned with their axes parallel to that of the said seat (2; 4), and a valve face member movable in a direction parallel to the axis of the said seat, comprising one or more valve face elements (1; 3) capable of interacting with the said apertures (102, 104) formed in the said seat (2; 4); each valve face element (1; 3) has, on the surface facing the said aperture (102; 104), a concave profile (111; 113) which is symmetrical with respect to the axis of the corresponding aperture.

公开(公告)号：EP1259749B1

公开(公告)日：2004-05-26

申请号：EP01903669.8

申请日：2001-01-23

Applicant: Dott.Ing. Mario Cozzani S.R.L.

Inventor： SCHIAVONE, Massimo ,  BIANCHI, Andrea

IPC: F16K31/04 ,  F16K3/08 ,  F04B39/08 ,  F04B39/10

CPC classification number: F16K31/041 ,  F04B39/08 ,  F04B39/102 ,  F16K3/085

Abstract: Valve for the control of large-section flows with high operating frequency, and in particular for compressors or the like, comprising a flow aperture (102; 106) and a closure device (3; 8), said flow aperture comprising one or more orifices (102; 106) formed on a fixed body (2; 6) cooperating with said closure device (3; 8) and introduced into the flow channel (1), said closure device (3; 8) rotating with respect to an axis perpendicular to the plane on which said fixed body (2; 6) lies, and being equipped with driving means (5); said closure device (3; 8) is equipped with at least a hollow (123; 138) on the surface facing said fixed body (2; 6) which houses an insert (113; 118), said insert being formed so as to be substantially complementary with said orifice (102; 106) of said fixed body (2; 6).

公开(公告)号：EP1259749A1

公开(公告)日：2002-11-27

申请号：EP01903669.8

申请日：2001-01-23

Applicant: Dott.Ing. Mario Cozzani S.R.L.

Inventor： SCHIAVONE, Massimo ,  BIANCHI, Andrea

IPC: F16K31/04 ,  F16K3/08 ,  F04B39/08 ,  F04B39/10

CPC classification number: F16K31/041 ,  F04B39/08 ,  F04B39/102 ,  F16K3/085

Abstract: Valve for the control of large-section flows with high operating frequency, and in particular for compressors or the like, comprising a flow aperture (102; 106) and a closure device (3; 8), said flow aperture comprising one or more orifices (102; 106) formed on a fixed body (2; 6) cooperating with said closure device (3; 8) and introduced into the flow channel (1), said closure device (3; 8) rotating with respect to an axis perpendicular to the plane on which said fixed body (2; 6) lies, and being equipped with driving means (5); said closure device (3; 8) is equipped with at least a hollow (123; 138) on the surface facing said fixed body (2; 6) which houses an insert (113; 118), said insert being formed so as to be substantially complementary with said orifice (102; 106) of said fixed body (2; 6).