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Title:
GENERATING TWO PNEUMATIC SIGNALS TO OPERATE ACTUATOR ON VALVE ASSEMBLY
Document Type and Number:
Japanese Patent JP2019056486
Kind Code:
A
Abstract:
To provide a controller configured to improve response time on a valve assembly.SOLUTION: A controller 100 may have a flow-modifying structure that couples with a pair of pneumatic outputs, both pneumatically coupled with an actuator 104 on the valve assembly 102. The flow modifying structure can be configured to convert incoming instrument air into a pair of independent, pneumatic output signals, at least one of which flows directly to the actuator 104. In one implementation, a volume booster is used to increase pressure of the other pneumatic output signal upstream of the actuator 104.SELECTED DRAWING: Figure 1

Inventors:
HAROLD GEORGE WATTS
Application Number:
JP2018138947A
Publication Date:
April 11, 2019
Filing Date:
July 25, 2018
Export Citation:
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Assignee:
DRESSER LLC
International Classes:
F16K31/12; F16K31/42
Attorney, Agent or Firm:
荒川 聡志
小倉 博
田中 拓人



 
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