公开(公告)号：WO2016173744A1

公开(公告)日：2016-11-03

申请号：PCT/EP2016/054303

申请日：2016-03-01

Applicant: DANFOSS A/S

Inventor： VIJAYAN, Aravind ,  VENKATESH, Raghavendra ,  ARUL MIKE PRAKASH, John ,  MATZEN, Detlef

IPC: F16K31/124 ,  F16K31/42

CPC classification number: F16K31/1245 ,  F16K31/406 ,  F16K31/42

Abstract: The present invention relates to a top cover (3) for a soft throttling valve body (2), to a soft throttling valve (1), and to a method for throttling a main valve of a soft throttling valve (1). A follower arrangement (8) is arranged to throttle a pilot fluid flow for setting a degree of opening of the main valve in order to allow a soft throttling of the main valve, a throttling of the pilot fluid flow depending on a degree of opening of the main valve, so as to allow for a soft throttling process of the main valve. Thus, a self-controlled throttling of pilot fluid flow driving the main valve in order to establish a partial opening of the main valve becomes possible. By that, a good prevention of pressure shocks when throttling the valve is allowed and a good control for partially opening the main valve is achieved.

Abstract translation: 本发明涉及一种用于软节流阀体（2）的顶盖（3）和软节流阀（1），以及用于节流软节流阀（1）的主阀的方法。 随动装置（8）布置成节流先导流体流动，用于设定主阀的开度，以允许主阀的软节流，先导流体流动的节流取决于打开的程度 主阀，以便允许主阀的软节流过程。 因此，为了建立主阀的部分打开，驱动主阀的先导流体流的自控节流成为可能。 由此，可以很好地防止在节流阀时产生压力冲击，并且实现了部分打开主阀的良好控制。

公开(公告)号：EP3364083A1

公开(公告)日：2018-08-22

申请号：EP18165391.6

申请日：2015-06-23

Applicant: Danfoss A/S

Inventor： MATZEN, Detlef ,  ARUL MIKE PRAKASH, John ,  VENKATESH, Raghavendra ,  VIJAYAN, Aravind

IPC: F16K31/124 ,  F16K31/42

CPC classification number: F16K31/1245 ,  F16K31/406 ,  F16K31/42

Abstract: The present invention relates to a top cover (3) for a soft throttling valve body (2), to a soft throttling valve (1), and to a method for throttling a main valve of a soft throttling valve (1). A follower arrangement (8) is arranged to throttle a pilot fluid flow for setting a degree of opening of the main valve in order to allow a soft throttling of the main valve, a throttling of the pilot fluid flow depending on a degree of opening of the main valve, so as to allow for a soft throttling process of the main valve.
Thus, a self-controlled throttling of pilot fluid flow driving the main valve in order to establish a partial opening of the main valve becomes possible. By that, a good prevention of pressure shocks when throttling the valve is allowed and a good control for partially opening the main valve is achieved.