Hydraulic expander assembly and control system for sleeving heat

Details Hydraulic expander assembly and control system for sleeving heat Hydraulic expander assembly and control system for sleeving heat

1994-09-13

1997-03-04

Cuda, Irene

Metal working

Means to assemble or disassemble

Heat exchanger

29726, 29890031, 29890036, B23P 1526

Patent

active

056067925

ABSTRACT:
A hydraulic expander assembly for installing a tube repair sleeve in a tube at a selected location relative to a tube defect or a tube support. The apparatus includes a hydraulic expander having at least one expandable bladder and adapted to receive the sleeve thereon. The expander includes a stud having at least one conduit formed therein and a plurality of slidable expandable bladders mounted on the stud for radial expansion, each of the bladders in fluid communication with the conduit. A detector is mounted on the expander and responsive to tube supports and defects in the tube. Finally, a control system is electrically connected with the detector and operative to control the expansion of the bladder in response to signals received from the detector.

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