Pilot operated fluid regulators having a reset apparatus and related methods
AssigneeEmerson Process Management Regulator Technologies, Inc.
InventorsJames Lyman Griffin, JR., Daniel Gunder Roper, Douglas James Scheffler, Harold Joe McKinney, Jason Daniel Journey
Life of this patent
Estimating the term…
Abstract
Fluid regulator systems having reset apparatus and methods are described herein. An example reset apparatus for use with a fluid regulator system includes a first valve having an inlet to receive a loading fluid and an outlet in fluid communication with a loading chamber of a fluid regulator, and a second valve having an inlet in fluid communication with the loading chamber of the fluid regulator and an outlet in fluid communication with a vent.
Claims20
A reset apparatus for use with a fluid regulator system, the reset apparatus comprising:
- a first valve having an inlet in fluid communication with a loading fluid and an outlet in fluid communication with a loading chamber of a fluid regulator;
- and
- a second valve having an inlet in fluid communication with the loading chamber of the fluid regulator and an outlet in fluid communication with a vent,
- wherein, in normal operation, the first valve allows the loading fluid to flow to the loading chamber of the fluid regulator and the second valve prevents the loading fluid from flowing between the loading chamber and the vent, and wherein, in a fail condition, the first valve prevents the loading fluid from flowing to the loading chamber of the fluid regulator and the second valve allows the loading fluid in the loading chamber to flow to the vent.
A reset apparatus for use with a fluid regulator system, the reset apparatus comprising:
- a loading inlet to receive a loading fluid from a pilot regulator;
- a loading outlet in fluid communication with the loading inlet, the loading outlet to fluidly couple the loading inlet to a loading chamber of a fluid regulator during normal operation of the fluid regulator system;
- and
- a vent to fluidly couple the loading chamber of the fluid regulator to the atmosphere during a fail condition of the fluid regulator system.
A reset apparatus for use with a fluid regulator system, the reset apparatus comprising:
- first means for controlling fluid flow of a loading fluid between a pilot regulator and a loading chamber of a fluid regulator during a first condition of the fluid regulator system;
- and
- second means for controlling fluid flow between the loading chamber of the fluid regulator and a vent during a second condition of the fluid regulator system, wherein the first condition is different than the second condition.
Dependencies are inferred from the claim text.