公开(公告)号：EP1229280A1

公开(公告)日：2002-08-07

申请号：EP01102719.0

申请日：2001-02-06

申请人： Valbia S.r.l.

发明人： Bonomi, Aldo

IPC分类号： F16K39/02 ,  F16K1/10

CPC分类号： F16K1/10 ,  F16K39/022

摘要： A fluid flow control valve (1a,1b) with integrated pneumatic actuation, comprising a valve body (2a,2b) which forms, inside it, a passage chamber (30a,30b) for a fluid which is connected to an intake port (3a,3b) and a delivery port (4a,4b). A sealing region (5a,5b) is formed inside the passage chamber (30a,30b), between the intake port and the delivery port, and can be engaged by the head (6a,6b) of a pneumatically actuated flow control element (7a,7b) which can move on command along an actuation path (8a,8b) in order to pass from an open position, in which the head (6a,6b) is disengaged and spaced from the sealing region, to a closed position, in which the head (6a,6b) engages the sealing region. In the flow control element there is a compensation chamber (9a,9b) which is connected in terms of pressure to the passage chamber (30a,30b), and in the compensation chamber there are regions (10a,10b, 11a,11b) for applying the pressure of the fluid which are adapted to convert the pressure into a contrasting force which is parallel to the actuation path (8a,8b) of the flow control element (7a,7b) and is orientated in the opposite direction with respect to the force that is parallel to the actuation path and is generated by the pressure of the fluid on the side of the head (6a,6b) of the flow control element (7a,7b) that is directed toward the sealing region (5a,5b).

摘要翻译： 一种具有集成气动致动的流体流量控制阀（1a，1b），包括阀体（2a，2b），其在其内部形成有用于流体的通道室（30a，30b），所述通道室连接到进气口 ，3b）和输送口（4a，4b）。 密封区域（5a，5b）形成在通道室（30a，30b）的内部，位于进气口和排出口之间，并且可由气动致动的流量控制元件（7a）的头部（6a，6b） ，7b），其可以沿着致动路径（8a，8b）指令移动，以便从头部（6a，6b）与密封区域分离并与密封区域间隔开的打开位置通过到关闭位置 头部（6a，6b）与密封区域接合。 在流量控制元件中有一个压力与通道室（30a，30b）连接的补偿室（9a，9b），在补偿室中有一个区域（10a，10b，11a，11b），用于 施加适于将压力转换成与流量控制元件（7a，7b）的致动路径（8a，8b）平行的对比力的流体的压力，并且相对于流量控制元件 与驱动路径平行的力是由朝向密封区域（5a，5b）的流量控制元件（7a，7b）的头部（6a，6b）侧的流体的压力产生的， 。