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Fast-acting valve actuator

Patent ·
OSTI ID:863495
 [1]
  1. Knoxville, TN
+ Show Author Affiliations

A fast-acting valve actuator utilizes a spring driven pneumatically loaded piston to drive a valve gate. Rapid exhaust of pressurized gas from the pneumatically loaded side of the piston facilitates an extremely rapid piston stroke. A flexible selector diaphragm opens and closes an exhaust port in response to pressure differentials created by energizing and de-energizing a solenoid which controls the pneumatic input to the actuator as well as selectively providing a venting action to one side of the selector diaphragm.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
DOE Contract Number:
W-7405-ENG-26
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4187764
OSTI ID:
863495
Country of Publication:
United States
Language:
English

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Related Subjects

/91/137/
acting valve
action
actuator
closes
controls
created
de-energizing
diaphragm
differentials
drive
driven
energizing
exhaust
extremely
extremely rapid
facilitates
fast-acting
fast-acting valve
flexible
gas
gate
input
loaded
piston
piston stroke
pneumatic
pneumatically
pneumatically loaded
pressure
pressure differential
pressurized
pressurized gas
providing
rapid
response
selectively
selector
solenoid
spring
stroke
utilizes
valve
valve actuator
valve gate
venting