公开(公告)号：WO2018167028A1

公开(公告)日：2018-09-20

申请号：PCT/EP2018/056183

申请日：2018-03-13

Applicant: DANFOSS A/S

Inventor： VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16K27/00

Abstract: A valve arrangement according to the present disclosure includes a valve module and a drain valve. The valve module includes first and second functional spaces, and an attachment interface defining a passage into one of the first or second functional spaces. The drain valve includes a fluid inlet and a fluid outlet formed through a common connector part that is connectable to the attachment interface to connect the fluid inlet of the drain valve to the second functional space and the at least one fluid outlet to the first functional space.

公开(公告)号：WO2018167027A1

公开(公告)日：2018-09-20

申请号：PCT/EP2018/056182

申请日：2018-03-13

Applicant: DANFOSS A/S

Inventor： KULKARNI, Shrikant ,  GURUMOORTHY, Rajendren ,  VERMA, Giriraj ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16T1/24

Abstract: A drain valve (10) is described comprising a housing (11), a fluid inlet (12), a gas outlet (13) and at least one liquid outlet orifice (19) arranged in a liquid outlet member (20) of the housing (11). The drain valve (10) furthermore comprises a float (16) connected to a lever (17) on a first end (18). The float (16) is arranged in a float chamber (15) of the housing (11). The float chamber (15) is connected to the fluid inlet (12), the gas outlet (13) and the at least one liquid outlet orifice (19). The liquid outlet orifice (19) may be opened or closed by a closing member (21) that is connected to a second end (22) of the lever (17) and is rotatably connected to the liquid outlet member (20). If a liquid is arranged in the float chamber (15) a rise in the liquid level will result in a lift of the float (16) whereby the closing member (21) is rotated to a more open position of the at least one liquid outlet orifice (19) and vice versa. Such a drain valve should be operated at higher fluid pressures without increasing the size of the valve. To this end the liquid outlet member (20) comprises a cylinder-like section and the closing member (21) is arranged concentrically around the cylinder-like section, wherein the closing member (21) comprises a closing element (24), wherein in the open valve position of the closing member (21) the closing element (24) converges towards the closest liquid outlet orifice (19) that the closing element (24) is matched to such that the surface of the closing element (24) perpendicular to the liquid flow direction through the liquid outlet orifice (19) is minimized, and the end of the liquid outlet orifice (19) that is first exposed when the liquid outlet orifice (19) is opened has the smallest width perpendicular to the opening direction of the closing element (24).

公开(公告)号：EP3595794A1

公开(公告)日：2020-01-22

申请号：EP18709034.5

申请日：2018-03-13

Applicant: Danfoss A/S

Inventor： VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16K27/00

公开(公告)号：EP3375504A1

公开(公告)日：2018-09-19

申请号：EP17166175.4

申请日：2017-04-12

Applicant: Danfoss A/S

Inventor： VESTERGAARD, Niels P. ,  VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04

CPC classification number: F25B41/04 ,  B01D5/006 ,  B01D19/0063 ,  F16K5/0442 ,  F16K31/30 ,  F16T1/24 ,  F16T1/45 ,  F25B47/02 ,  F25B49/02 ,  F25B2400/23 ,  F25B2500/01 ,  F25D21/06

Abstract: The invention relates to a drain valve (10) comprising a housing (11), a fluid inlet (12), a gas outlet (13) and at least one liquid outlet orifice (19) arranged in a liquid outlet member (20) of the housing (11). The drain valve (10) furthermore comprises a float (16) connected to a lever (17) on a first end (18). The float (16) is arranged in a float chamber (15) of the housing (11). The float chamber (15) is connected to the fluid inlet (12), the gas outlet (13) and the at least one liquid outlet orifice (19). The liquid outlet orifice (19) may be opened or closed by a closing member (21) that is connected to a second end (22) of the lever (17) and is rotatably connected to the liquid outlet member (20). If a liquid is arranged in the float chamber (15) a rise in the liquid level will result in a lift of the float (16) whereby the closing member (21) is rotated to a more open position of the at least one liquid outlet orifice (19) and vice versa.
Task of the invention is to provide a drain valve (10) that may be operated at higher pressure differences in a refrigeration system.
To this end, the liquid outlet member (20) comprises a cylinder-like section and the closing member (21) is arranged concentrically around the cylinder-like section.