Strömungsregelventil

Details

Veröffentlichungs-Nr.

EP3249269

Aktenzeichen

EP17172016

Anmeldetag

19. Mai 2017

Veröffentlichung

27. November 2019

Erteilung

27. November 2019

Rechtsraum

EP

IPC

F16K1/36F16K1/42F16K47/02F16K1/54

Abstract

Provided is a flow control valve that can effectively reduce the generation of noise due to fluctuations in the pressure or a refrigerant separation phenomenon that may occur while a refrigerant passes through the valve orifice, and also reduces the pressure loss and the like. The flow control valve includes a valve body 5 including a valve chamber 6 and a valve orifice 10; and a valve element 30 with a curved surface portion 33 adapted to change the flow rate of a fluid through the valve orifice 10 in accordance with the lift amount of the valve element 30, the curved surface portion 33 having a curvature or a control angle that is increased continuously or in stages toward the tip end of the curved surface portion 33. The orifice diameter of the valve orifice 10 is sequentially increased in four or more stages in a direction away from the valve chamber 6. Further preferably, V2 > V4 > V3 > V1, where the volumes of the first valve orifice portion 11, the second valve orifice portion 12, the third valve orifice portion 13, and the fourth valve orifice portion 14 are V1, V2, V3, and V4, respectively.

Anmelder

Firma

Fujikoki Corporation

Land

🇯🇵 Japan

Fachgebiete