公开(公告)号：US09250632B2

公开(公告)日：2016-02-02

申请号：US13728477

申请日：2012-12-27

申请人： STI srl

发明人： Flavio Tondolo ,  Roberto Valoti

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US10337625B2

公开(公告)日：2019-07-02

申请号：US15500066

申请日：2014-08-01

申请人： STI SRL

发明人： Flavio Tondolo

IPC分类号： F16K11/07 ,  F16K35/04 ,  F16K31/04 ,  F16K31/124

摘要： A slide flow distributor to direct and modulate a gaseous fluid, in inlet and outlet. This regulation is carried out by means of a spool, which conveys compressed air in a determined charging direction and puts in communication the other chamber with the environment at the same time. This is a servo-actuator which can be used in the field of pneumatic systems of valve actuation. It has a specific pneumatic servo-actuating system using compressed air. This distributor uses a linear motor using a new pneumatic servo-actuator which generates a force in the same direction of the axial force of the motor, with the result that the spool is accelerated in a predetermined direction. The pneumatic servo-actuator is made of a profiled body, a plurality of balls and corresponding elastic means which press the plurality of balls on the side surface of the profiled body.

公开(公告)号：US20170261111A1

公开(公告)日：2017-09-14

申请号：US15500066

申请日：2014-08-01

申请人： STI SRL

发明人： Flavio Tondolo

IPC分类号： F16K11/07 ,  F16K35/04 ,  F16K31/124 ,  F16K31/04

CPC分类号： F16K11/07 ,  F16K31/04 ,  F16K31/124 ,  F16K35/04 ,  Y10T137/86622 ,  Y10T137/8663

摘要： Slide flow distributor (100) comprising a motor (1) moving directly a spool (2) by means of a rod (8) of the motor, a charge chamber (3) of the working fluid, in central position, in fluid communication with two discharge branches (4, 5) and two delivery branches (6, 7) and characterized in that from the portion of the spool (2) proximal to the motor (I) it is provided a pneumatic servo-actuator (9) generating a force in the same direction and development of the axial force of the motor (I), with the result that the spool (2) is accelerated in a predetermined direction, said pneumatic servo-actuator comprising a profiled body (52), a plurality of balls (50) and corresponding elastic means (5 1) which press said plurality of balls (50) on the side surface of the profiled body (52).

公开(公告)号：US20130174915A1

公开(公告)日：2013-07-11

申请号：US13728477

申请日：2012-12-27

申请人： STI srl

发明人： Flavio Tondolo ,  Roberto Valoti

IPC分类号： G05D7/06

CPC分类号： 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

摘要： 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.

摘要翻译： 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。