Apparatus for measuring friction of hydraulic control rod drives in nuclear reactors

Patent · Mon Dec 17 23:00:00 EST 1984

OSTI ID:5874150

Jamrus, K J

An apparatus is disclosed which measures forces resisting the movement of pistons in a control rod drive mechanism in a nuclear reactor and which includes pressure sensing means and further includes hydraulic circuitry to divert pressurized fluid from a normal operating conduit to a selected shunt conduit containing a valve having a particular fluid control characteristic, said shunt conduit directing the fluid to a selected piston to move said piston and said pressure sensing means measuring the pressure of the fluid during the motion of said piston to give an indication of the force needed to achieve such motion.

• Assignee: General Electric Co.
• Patent Number(s): US 4489036
• OSTI ID: 5874150
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100 -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
BWR TYPE REACTORS
CONTROL EQUIPMENT
CONTROL ROD DRIVES
DESIGN
EQUIPMENT
FRICTION
HYDRAULIC CONTROL DEVICES
MEASURING INSTRUMENTS
MEASURING METHODS
PISTONS
REACTOR COMPONENTS
REACTOR SAFETY
REACTOR TECHNOLOGY
REACTORS
SAFETY
WATER COOLED REACTORS
WATER MODERATED REACTORS