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1. 发明申请

US20050067600A1 Valve having an actuator that integrates mechanical hard stops 审中-公开
标题翻译：阀具有集成机械硬止动件的致动器
公开(公告)号：US20050067600A1
公开(公告)日：2005-03-31
申请号：US10676457
申请日：2003-09-30
申请人： Russell Wilfert
发明人： Russell Wilfert
IPC分类号： F16K5/04 , F16K27/06 , F16K37/00 , F16K51/00
CPC分类号： F16K5/0442 , F16K27/065 , F16K37/00
摘要： A valve assembly includes mechanical hard stops that are integral with the actuator assembly. The valve assembly includes a valve body, a valve element, and an actuator assembly. The valve element is disposed within the valve body and is moveable between an open position and a closed position. The actuator assembly is coupled to the valve element and is adapted to receive one or more position control signals, and is operable to selectively move the valve element between the open and closed positions. An engagement structure is coupled to the valve element and is moveable therewith. A stop structure is fixedly coupled to the actuator assembly and is configured to engage the engagement structure when the valve is at least in one of the open and closed positions.
摘要翻译：阀组件包括与致动器组件成一体的机械硬止动件。阀组件包括阀体，阀元件和致动器组件。阀元件设置在阀体内并且能够在打开位置和关闭位置之间移动。致动器组件联接到阀元件并且适于接收一个或多个位置控制信号，并且可操作以在打开位置和关闭位置之间选择性地移动阀元件。接合结构联接到阀元件并且可与其一起移动。止动结构固定地联接到致动器组件，并且构造成当阀至少在打开位置和关闭位置中的一个位置时接合接合结构。

2. 发明申请

US20050062006A1 Valve assembly having a pressure balanced segment seal 有权
标题翻译：阀组件具有压力平衡段密封
公开(公告)号：US20050062006A1
公开(公告)日：2005-03-24
申请号：US10668819
申请日：2003-09-22
申请人： Russell Wilfert
发明人： Russell Wilfert
IPC分类号： F16K5/18 , F16K11/085 , F16K25/00 , F16K25/02
CPC分类号： F16K25/02 , F16K5/188 , F16K11/0853
摘要： A plug valve assembly includes a plug and a segment seal assembly. The segment seal assembly is configured to reduce the differential pressure load across the segment seal assembly when the valve is closed. The segment seal includes an opening in fluid communication with a sealed vent region that is formed between the segment seal and the plug.
摘要翻译：旋塞阀组件包括塞子和段密封组件。节段密封组件构造成当阀关闭时减小横跨节段密封组件的压差负荷。片段密封件包括与形成在片段密封件和插塞之间的密封的通气区域流体连通的开口。

3. 发明申请

US20050067593A1 Valve having an integrated actuator assembly 有权
公开(公告)号：US20050067593A1
公开(公告)日：2005-03-31
申请号：US10677475
申请日：2003-09-30
申请人： Russell Wilfert , Vernon Duckett , Chuck Plevich
发明人： Russell Wilfert , Vernon Duckett , Chuck Plevich
IPC分类号： F16K31/04 , F16K31/02
CPC分类号： F16K31/046 , Y10T137/8242
摘要： A valve assembly includes a fully-integrated actuator assembly. The actuator assembly includes, within a single housing assembly, a torque source, a position sensor, a gear train, and an output shaft. The torque source is adapted to receive one or more position control signals and, in response, to supplies a drive force. The position sensor is coupled to receive the drive force and, in response, supplies a signal representative of valve position. The output shaft is coupled to receive the drive force from the torque source, and thereby selectively moves the valve, upon receipt of the drive force, between the open and closed positions.

4. 发明申请

US20100085676A1 NESTED PULSE WIDTH MODULATION CONTROL 审中-公开
标题翻译： NESTED脉冲宽度调制控制
公开(公告)号：US20100085676A1
公开(公告)日：2010-04-08
申请号：US12245495
申请日：2008-10-03
申请人： Russell Wilfert
发明人： Russell Wilfert
IPC分类号： H01H47/00
CPC分类号： F02N11/08 , F02N2300/108 , F05B2260/85
摘要： A PWM control circuit includes a first PWM driver, a duty cycle compensator, and a second PWM driver. The first PWM driver receives duty cycle commands and generates a first PWM driver signal having a duty cycle that varies based on the duty cycle commands. The duty cycle compensator receives the first PWM driver signal and a sensor signal representative of a value of a sensed physical parameter. The duty cycle compensator supplies compensated duty cycle commands based on the duty cycle of the first PWM driver signal and the value of the sensed physical parameter. The second PWM driver receives the compensated duty cycle commands and generates a hybrid PWM driver signal having a duty cycle that varies based on the compensated duty cycle commands. The resulting hybrid signal provides improved resolution for control that cannot be provided by a single PWM driver alone.
摘要翻译： PWM控制电路包括第一PWM驱动器，占空比补偿器和第二PWM驱动器。第一PWM驱动器接收占空比命令并产生具有基于占空比命令而变化的占空比的第一PWM驱动器信号。占空比补偿器接收第一PWM驱动器信号和表示感测物理参数的值的传感器信号。占空比补偿器基于第一PWM驱动器信号的占空比和感测的物理参数的值来提供补偿的占空比命令。第二PWM驱动器接收经补偿的占空比命令并产生具有基于经补偿的占空比命令而变化的占空比的混合PWM驱动器信号。所产生的混合信号为单独的PWM驱动器无法提供的控制提供改进的分辨率。

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