Bwxt Mpower, Inc.

Bwxt Nuclear Operations Group, Inc.

Babcock & Wilcox Nuclear Operations Group, Inc.

Allan R Mackovjak

Paul K DeSantis

John P McLaughlin

Kevin J Stambaugh

Matthew W Ales

Michael J Edwards

Brett T Goodyear

Christopher Douglas Dodd

Kevin J Stambauch

Paul K Desantis

John P Mclaughlin

Christopher D Dodd

A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.

CRDM with separate scram latch engagement and locking

CRDM with separate SCRAM latch engagement and locking

A control rod drive mechanism (CRDM) for use in a nuclear reactor, the CRDM comprising: a connecting rod connected with at least one control rod; a lead screw; a drive mechanism configured to linearly translate the lead screw; an electromagnet coil assembly; and a latching assembly that latches the connecting rod to the lead screw responsive to energizing the electromagnet coil assembly and unlatches the connecting rod from the lead screw responsive to deenergizing the electromagnet coil assembly. The latching assembly is secured with and linearly translates with the lead screw, while the electromagnet coil assembly does not move with the lead screw. The electromagnet coil assembly is at least coextensive with a linear translation stroke over which the drive mechanism is configured to linearly translate the lead screw.

Control rod drive mechanism for nuclear reactor

Growing community of inventors

Willoughby, OH, United States of America

Allan R Mackovjak