Invention Grant
US09513636B2 Fluid regulator, actuator and method of improving stability of a fluid regulator
有权
流体调节器，致动器和改善流体调节器稳定性的方法
- Patent Title: Fluid regulator, actuator and method of improving stability of a fluid regulator
- Patent Title (中): 流体调节器，致动器和改善流体调节器稳定性的方法
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Application No.: US13796823Application Date: 2013-03-12
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Publication No.: US09513636B2Publication Date: 2016-12-06
- Inventor: GuoLei Fan , Biao Zhou
- Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Applicant Address: US TX McKinney
- Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Current Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Current Assignee Address: US TX McKinney
- Agency: Marshall, Gerstein & Borun LLP
- Priority: CN201210353618 20120921
- Main IPC: F16K31/12
- IPC: F16K31/12 ; G05D7/01 ; F16K31/126 ; F16K31/165 ; G05D16/06
Abstract:
An actuator for a fluid regulator includes two or more control springs operatively connected to a diaphragm such that at least two of the control springs bias the diaphragm independently in parallel and have different natural frequencies. A method for retrofitting a prior art actuator to include a second control spring is also disclosed.
Public/Granted literature
- US20140083519A1 Fluid Regulator, Actuator and Method of Improving Stability of a Fluid Regulator Public/Granted day:2014-03-27
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