公开(公告)号：EP2032854B1

公开(公告)日：2013-11-20

申请号：EP07765559.5

申请日：2007-06-22

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

Inventor： SCHIAVONE, Massimo ,  RAGGI, Andrea

IPC: F04B49/24

CPC classification number: F04B49/243 ,  F04B49/03 ,  F04B49/06 ,  F04B2201/0601 ,  F04B2201/0604 ,  F04B2205/08

Abstract: Equipment for continuous regulation of the flow rate of fluid in a reciprocating compressor which has a compression chamber with a piston reciprocally movable therein. The compression chamber has an inlet valve and an outlet valve which delivers fluid to a reservoir. A translation device is movable to open the valve and allow closing of the valve. An actuator engages the translation device and includes a rod. The rod has a magnitizable central element located between solenoids of an electromechanical device. The central element is located in a prefixed position with respect to the solenoids under the resilient loading of a resilient device. Detectors are provided for detecting the position of the piston, the pressure in the reservoir and the position of the actuator.

公开(公告)号：EP2032854A2

公开(公告)日：2009-03-11

申请号：EP07765559.5

申请日：2007-06-22

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

Inventor： SCHIAVONE, Massimo ,  RAGGI, Andrea

IPC: F04B39/08 ,  F04B49/00 ,  F04B49/03 ,  F04B49/06 ,  F04B49/08 ,  F04B49/22

CPC classification number: F04B49/243 ,  F04B49/03 ,  F04B49/06 ,  F04B2201/0601 ,  F04B2201/0604 ,  F04B2205/08

Abstract: Equipment for continuous regulation of the flow rate of fluid in a reciprocating compressor which has a compression chamber with a piston reciprocally movable therein. The compression chamber has an inlet valve and an outlet valve which delivers fluid to a reservoir. A translation device is movable to open the valve and allow closing of the valve. An actuator engages the translation device and includes a rod. The rod has a magnitizable central element located between solenoids of an electromechanical device. The central element is located in a prefixed position with respect to the solenoids under the resilient loading of a resilient device. Detectors are provided for detecting the position of the piston, the pressure in the reservoir and the position of the actuator.

公开(公告)号：EP1831564B1

公开(公告)日：2010-03-24

申请号：EP05810999.2

申请日：2005-11-18

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

Inventor： SCHIAVONE, Massimo

IPC: F04B39/10

CPC classification number: F04B39/1033 ,  F04B39/102 ,  F04B39/1066 ,  Y10T137/7922

Abstract: Valve, in particular for compressors, comprising a seat (1) provided with at least one flow way (111), an obturator member (4) able to obstruct said flow way (111) and movable with respect to said seat in a given direction, and means (5) for resiliently stressing said obturator (4), which are able to force said obturator (4) into a given position and are active in the direction of movement thereof; said resilient stressing means (5) comprise at least one cylindrical helical compression spring (5), characterized by the presence, between all the turns and along the entire working length of the spring (5), of inter-turn apertures.

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：EP1831564A1

公开(公告)日：2007-09-12

申请号：EP05810999.2

申请日：2005-11-18

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

Inventor： SCHIAVONE, Massimo

IPC: F04B39/10

CPC classification number: F04B39/1033 ,  F04B39/102 ,  F04B39/1066 ,  Y10T137/7922

Abstract: Valve, in particular for compressors, comprising a seat (1) provided with at least one flow way (111), an obturator member (4) able to obstruct said flow way (111) and movable with respect to said seat in a given direction, and means (5) for resiliently stressing said obturator (4), which are able to force said obturator (4) into a given position and are active in the direction of movement thereof; said resilient stressing means (5) comprise at least one cylindrical helical compression spring (5), characterized by the presence, between all the turns and along the entire working length of the spring (5), of inter-turn apertures.

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).