公开(公告)号：EP3627023A1

公开(公告)日：2020-03-25

申请号：EP18195629.3

申请日：2018-09-20

申请人： Danfoss A/S

发明人： HØLCK, Poul ,  MARKVART, Arne ,  CLAUSEN, Anders Østergaard

IPC分类号： F16K41/04 ,  F16K43/00 ,  F16K1/52 ,  F24D19/10 ,  F16K27/02 ,  F16K37/00

摘要： Valve (10) including a valve element (20) moveable relative to a valve seat (28) to adjust a valve opening (30) to regulate a fluid flow. A valve pin (24) is arranged to act on the valve element. The valve pin protrudes out of the valve and is arranged movable in a longitudinal direction (X) within a stuffing box (60). To easily and securely mount the stuffing box, said stuffing box is provided axially abutting against a stop element (85) secured by a removable mounting element (62).

公开(公告)号：EP3627022A1

公开(公告)日：2020-03-25

申请号：EP18195626.9

申请日：2018-09-20

申请人： Danfoss A/S

发明人： HØLCK, Poul ,  MARKVART, Arne

IPC分类号： F16K31/60 ,  F16K35/04 ,  F16K37/00 ,  F16K41/02 ,  F16K1/52 ,  F24D19/10 ,  F16K27/02

摘要： A valve (10) comprises a valve seat (38) arranged between a first and second fluid passages (16, 18). To regulate the fluid flow between the first and second fluid passages a valve element (20) cooperates with the valve seat. A valve opening (30) is adjustable by relative movement of the valve seat and valve element. To adjust a maximum flow through the valve opening, a movable presetting element (38) is provided. In order to make the presetting element easily adjustable, feedback means (48, 50) are arranged to provide a tactile feedback to movement of the presetting element.

公开(公告)号：EP3627021A1

公开(公告)日：2020-03-25

申请号：EP18195624.4

申请日：2018-09-20

申请人： Danfoss A/S

发明人： HØLCK, Poul ,  MARKVART, Arne

IPC分类号： F16K31/60 ,  F16K41/04 ,  F16K1/52 ,  F16K5/10 ,  F16K5/12 ,  F24D19/10 ,  F16K27/02 ,  F16K31/00 ,  G05D23/02 ,  F16K37/00

摘要： A valve (10) is described comprising a central portion (82) including a valve element (20) movable relative to a valve seat (28) to adjust a valve opening (30) to regulate a fluid flow. A presetting element (38) is provided to adjust a maximum flow through the valve opening. The presetting element is rotatable around the central portion. To adjust the valve in a simple and exact manner, the central portion is configured to remain stationary as said presetting element is being rotated.

公开(公告)号：EP3627015A1

公开(公告)日：2020-03-25

申请号：EP18195630.1

申请日：2018-09-20

申请人： Danfoss A/S

发明人： HØLCK, Poul ,  MARKVART, Arne

IPC分类号： F16K1/52 ,  F16K27/02 ,  G05D16/06 ,  F16K41/04 ,  F24D19/10

摘要： A method of operating a valve (10) is described. The valve comprises a valve element (20) movable relative to a valve seat (28) to adjust a valve opening (30) to regulate a fluid flow between a first and a second fluid port (16, 18). The valve further comprises reversing means to reverse a flow though the valve opening. The said valve further comprises a dynamic unit (100) to regulate a dynamic flow opening (102) in dependence on a pressure difference between the first and the second fluid port. In a first flow direction of the flow through the dynamic unit, the dynamic flow opening is reduced if the pressure difference increases. In a second, opposite flow direction of the flow through the dynamic unit, the dynamic flow opening is increased or kept constant if the pressure difference increases. The dynamic unit is arranged such that the reversing means also reverse a flow through the dynamic unit. In order to facilitate installation, the method includes operating the valve with a flow direction such that a flow through the dynamic unit is directed in the second flow direction.