公开(公告)号：US11608911B2

公开(公告)日：2023-03-21

申请号：US16878349

申请日：2020-05-19

申请人： Pittway Sarl

发明人： Michael Ackermann

IPC分类号： G05D16/02 ,  F16K37/00 ,  G05D16/00

摘要： In some examples, a pressure reducing valve includes a valve body defining a defining a flow path and a restricting element within the flow path. A sensing element is configured to modify a position of the restricting element in the flow path. The sensing element defines a first area in fluid communication with the flow path and a second area fluidly isolated from the flow path. The pressure reducing valve includes control circuitry configured to determine a differential pressure over a section of the flow path, determine a position of the restricting element, and determine a flow rate based on the differential pressure and the position of the restricting element.

公开(公告)号：US20210364100A1

公开(公告)日：2021-11-25

申请号：US16878349

申请日：2020-05-19

申请人： Pittway Sarl

发明人： Michael Ackermann

IPC分类号： F16K37/00 ,  G05D16/00

摘要： In some examples, a pressure reducing valve includes a valve body defining a defining a flow path and a restricting element within the flow path. A sensing element is configured to modify a position of the restricting element in the flow path. The sensing element defines a first area in fluid communication with the flow path and a second area fluidly isolated from the flow path. The pressure reducing valve includes control circuitry configured to determine a differential pressure over a section of the flow path, determine a position of the restricting element, and determine a flow rate based on the differential pressure and the position of the restricting element.