公开(公告)号：US09250632B2

公开(公告)日：2016-02-02

申请号：US13728477

申请日：2012-12-27

Applicant: STI srl

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: F15B19/00 ,  G05D7/06 ,  F15B20/00 ,  F15B5/00

CPC classification number: G05D7/0617 ,  F15B5/006 ,  F15B19/005 ,  F15B20/008 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/6303 ,  F15B2211/6336 ,  F15B2211/6355 ,  F15B2211/7052 ,  F15B2211/7053 ,  F15B2211/87 ,  F15B2211/8752 ,  Y10T137/0324 ,  Y10T137/7761

Abstract: A valve positioner system with zero bleed at steady state is disclosed. The system has a pilot valve, the operation of which is controlled by an electronic circuit powered from a signaling and power connection of a positioner device. A plurality of pneumatic valves are activated and deactivated by the pilot valve to control a valve actuator. With varying configurations and arrangements of normally open or normally closed pilot valves and pneumatic valves, fail freeze and fail safe operations are contemplated. The activation and deactivation of the pilot valve is controlled by an electronic circuit that monitors a valve position signal.

Abstract translation: 公开了一种在稳态下零泄漏的阀门定位器系统。 该系统具有先导阀，其操作由通过定位器装置的信号和电力连接供电的电子电路控制。 多个气动阀由先导阀启动和停用，以控制阀致动器。 通过常开或常闭先导阀和气动阀的不同配置和布置，可以考虑冻结和故障安全操作。 先导阀的启动和停用由监视阀位置信号的电子电路控制。

公开(公告)号：US20130174915A1

公开(公告)日：2013-07-11

申请号：US13728477

申请日：2012-12-27

Applicant: STI srl

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: G05D7/06

CPC classification number: G05D7/0617 ,  F15B5/006 ,  F15B19/005 ,  F15B20/008 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/6303 ,  F15B2211/6336 ,  F15B2211/6355 ,  F15B2211/7052 ,  F15B2211/7053 ,  F15B2211/87 ,  F15B2211/8752 ,  Y10T137/0324 ,  Y10T137/7761

Abstract: A valve positioner system with zero bleed at steady state is disclosed. The system has a pilot valve, the operation of which is controlled by an electronic circuit powered from a signaling and power connection of a positioner device. A plurality of pneumatic valves are activated and deactivated by the pilot valve to control a valve actuator. With varying configurations and arrangements of normally open or normally closed pilot valves and pneumatic valves, fail freeze and fail safe operations are contemplated. The activation and deactivation of the pilot valve is controlled by an electronic circuit that monitors a valve position signal.

Abstract translation: 公开了一种在稳态下零泄漏的阀门定位器系统。 该系统具有先导阀，其操作由通过定位器装置的信号和电力连接供电的电子电路控制。 多个气动阀由先导阀启动和停用，以控制阀致动器。 通过常开或常闭先导阀和气动阀的不同配置和布置，可以考虑冻结和故障安全操作。 先导阀的启动和停用由监视阀位置信号的电子电路控制。