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.

公开(公告)号：EP3315838A1

公开(公告)日：2018-05-02

申请号：EP17165521.0

申请日：2017-04-07

Applicant: Danfoss A/S

Inventor： FABRICIUS, Torben Schack ,  VENKATESH, Raghavendra ,  KANAJAM, Rajkumar ,  MATZEN, Detlef ,  VESTERGAARD, Niels P.

IPC: F16K31/122 ,  F25B41/04 ,  F25B47/02

CPC classification number: F16K31/1221 ,  F25B41/04 ,  F25B47/022

Abstract: The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve (1) and a method for assembling the soft throttling valve (1).
The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure.
The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps.
A method for assembling a soft throttling valve is also disclosed.

Abstract translation: 本发明涉及一种用于软节流阀体（2）的顶盖（5），顶盖（5）包括一个或多个流体导管，用于传递先导流体流动以设定位于其中的主阀的打开程度 软节流阀体与软节流阀体连接。 此外，本发明涉及软节流阀（1）和用于组装软节流阀（1）的方法。 本发明的目的是允许很好地控制先导流体流动，同时保护软节流阀体免于由于阀故障而损坏。 该目的通过具有从动装置来解决，该从动装置布置成根据主阀的打开程度来节流先导流体流动，还具有用于手动打开主阀的手动打开装置和/或通过进一步防止阶梯式开口 主阀门在两个以内的开启阶段。 还公开了一种用于组装软节流阀的方法。

公开(公告)号：WO2018083015A1

公开(公告)日：2018-05-11

申请号：PCT/EP2017/077549

申请日：2017-10-27

Applicant: DANFOSS A/S

Inventor： VESTERGAARD, Niels P. ,  MATZEN, Detlef ,  KANAJAM, Rajkumar ,  VENKATESH, Raghavendra ,  FABRICIUS, Torben Schack

IPC: F16K31/122 ,  F25B41/04 ,  F25B47/02

Abstract: The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve (1) and a method for assembling the soft throttling valve (1). The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure. The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps. A method for assembling a soft throttling valve is also disclosed.

Abstract translation: 本发明涉及一种用于软节流阀体（2）的顶盖（5），顶盖（5）包括一个或多个流体导管，用于传递引导流体流动以设定一定程度的 将位于软节流阀体内的主阀打开到软节流阀体。 此外，本发明涉及软节流阀（1）和用于组装软节流阀（1）的方法。 本发明的目的是允许很好地控制先导流体流动，同时保护软节流阀体免于由于阀故障而损坏。 该目的通过具有从动装置来解决，该从动装置布置成根据主阀的打开程度来节流先导流体流动，还具有用于手动打开主阀的手动打开装置和/或通过进一步防止阶梯式开口 主阀门在两个以内的开启阶段。 还公开了一种组装软节流阀的方法。

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。