公开(公告)号：US09702442B2

公开(公告)日：2017-07-11

申请号：US14930919

申请日：2015-11-03

Applicant: Emerson Process Management, Valve Automation, Inc.

Inventor： Harry Hobert

IPC: F16K31/52 ,  F16H21/44 ,  F16H25/18 ,  F16H37/12 ,  F16H53/02 ,  F16K31/46 ,  F15B15/06

CPC classification number: F16H21/44 ,  F15B15/06 ,  F16H25/18 ,  F16H33/00 ,  F16H37/12 ,  F16H53/02 ,  F16K31/1225 ,  F16K31/1635 ,  F16K31/465 ,  F16K31/52

Abstract: An example rotary actuator includes a cam that is to be coupled to a valve. The cam is rotatable about an axis. The example rotary actuator also includes a linear actuator having a stem movable along a path offset from and perpendicular to the axis and a chain having a first end and a second end opposite the first end. The first end of the chain is coupled to the stem and the second end of the chain coupled to the cam. The chain is disposed around at least a portion of an outer edge of the cam, and movement of the stem along the path rotates the cam about the axis.

公开(公告)号：US20140326129A1

公开(公告)日：2014-11-06

申请号：US13887079

申请日：2013-05-03

Applicant: Emerson Process Management, Valve Automation., Inc

Inventor： Edwin Schreuder ,  Harry Hobert

IPC: F15B15/22

CPC classification number: F15B15/226 ,  F15B15/065 ,  F15B2211/76 ,  F16K31/1635 ,  Y10T29/49229

Abstract: Methods and apparatus for changing actuator output torques are disclosed. An example method includes decoupling a first end cap from a body of an actuator. A first spring assembly is positioned within a first outer chamber defined by the first end cap and the body. A first end of the first spring assembly is positioned adjacent a surface of a first piston. A second end of the first spring assembly is positioned adjacent the first end cap when the first end cap is coupled to the body. The method includes positioning a first spacer within the first outer chamber and coupling the first end cap to the body. The first spacer changes a distance between the first and second ends of the first spring assembly when the first end cap is coupled to the body to change an output torque of the actuator.

Abstract translation: 公开了用于改变致动器输出转矩的方法和装置。 示例性方法包括将第一端盖与致动器的本体脱离。 第一弹簧组件定位在由第一端盖和主体限定的第一外室内。 第一弹簧组件的第一端邻近第一活塞的表面定位。 当第一端盖联接到主体时，第一弹簧组件的第二端定位成邻近第一端盖。 该方法包括将第一间隔件定位在第一外室内并且将第一端盖连接到主体。 当第一端盖联接到主体以改变致动器的输出扭矩时，第一间隔件改变第一弹簧组件的第一和第二端之间的距离。

公开(公告)号：US20170122416A1

公开(公告)日：2017-05-04

申请号：US14930919

申请日：2015-11-03

Applicant: Emerson Process Management, Valve Automation, Inc.

Inventor： Harry Hobert

IPC: F16H21/44 ,  F16K31/524 ,  F16H53/02 ,  F16H25/18 ,  F16H37/12

CPC classification number: F16H21/44 ,  F15B15/06 ,  F16H25/18 ,  F16H33/00 ,  F16H37/12 ,  F16H53/02 ,  F16K31/1225 ,  F16K31/1635 ,  F16K31/465 ,  F16K31/52

Abstract: An example rotary actuator includes a cam that is to be coupled to a valve. The cam is rotatable about an axis. The example rotary actuator also includes a linear actuator having a stem movable along a path offset from and perpendicular to the axis and a chain having a first end and a second end opposite the first end. The first end of the chain is coupled to the stem and the second end of the chain coupled to the cam. The chain is disposed around at least a portion of an outer edge of the cam, and movement of the stem along the path rotates the cam about the axis.

公开(公告)号：US20180094746A1

公开(公告)日：2018-04-05

申请号：US15532462

申请日：2016-03-03

Applicant: Emerson Process Management, Valve Automation, Inc.

Inventor： Toni Zhang ,  Edwin Schreuder ,  Harry Hobert ,  Eric Yuan

IPC: F16K31/42 ,  F16K37/00 ,  F15B19/00 ,  F15B5/00

CPC classification number: F16K31/42 ,  F15B5/006 ,  F15B15/065 ,  F15B15/2861 ,  F15B19/005 ,  F15B20/002 ,  F15B2211/6336 ,  F15B2211/862 ,  F15B2211/863 ,  F15B2211/87 ,  F15B2211/8855 ,  F16K31/084 ,  F16K31/1635 ,  F16K37/0025 ,  F16K37/0041

Abstract: Methods and apparatus are disclosed for automatically detecting the failure configuration of a pneumatic actuator. A control module is operatively coupled to the actuator, and the actuator is operatively coupled to a valve having a flow control member. When a number of pilot valves included in the control module is indicative of a double-acting actuator, the failure configuration of the actuator is determined based on the number of pilot valves. When the number of pilot valves included in the control module is indicative of a single-acting actuator, the failure configuration of the actuator is determined by comparing a first measurement value obtained in response to moving the flow control member in a first direction to a first position and a second measurement value obtained in response to moving the flow control member in a second direction opposite the first direction to a second position.

公开(公告)号：US09228597B2

公开(公告)日：2016-01-05

申请号：US13887079

申请日：2013-05-03

Applicant: Emerson Process Management, Valve Automation., Inc

Inventor： Edwin Schreuder ,  Harry Hobert

IPC: F15B15/06 ,  F15B15/22 ,  F16K31/163

CPC classification number: F15B15/226 ,  F15B15/065 ,  F15B2211/76 ,  F16K31/1635 ,  Y10T29/49229

Abstract: Methods and apparatus for changing actuator output torques are disclosed. An example method includes decoupling a first end cap from a body of an actuator. A first spring assembly is positioned within a first outer chamber defined by the first end cap and the body. A first end of the first spring assembly is positioned adjacent a surface of a first piston. A second end of the first spring assembly is positioned adjacent the first end cap when the first end cap is coupled to the body. The method includes positioning a first spacer within the first outer chamber and coupling the first end cap to the body. The first spacer changes a distance between the first and second ends of the first spring assembly when the first end cap is coupled to the body to change an output torque of the actuator.

Abstract translation: 公开了用于改变致动器输出转矩的方法和装置。 示例性方法包括将第一端盖与致动器的本体脱离。 第一弹簧组件定位在由第一端盖和主体限定的第一外室内。 第一弹簧组件的第一端邻近第一活塞的表面定位。 当第一端盖联接到主体时，第一弹簧组件的第二端定位成邻近第一端盖。 该方法包括将第一间隔件定位在第一外室内并且将第一端盖连接到主体。 当第一端盖联接到主体以改变致动器的输出扭矩时，第一间隔件改变第一弹簧组件的第一和第二端之间的距离。