GREGORY G HOMOKI
Engineers in Allison Park, PA

2011025, Oct 27, 2011

Apr 23, 2010

12/766269

John H. Angel - Pittsburgh PA, US
Gregory G. Homoki - Allison Park PA, US

ALSTOM TECHNOLOGY LTD - Baden

G05D 23/00, F28F 9/00

165287, 165157

Disclosed herein is a novel, adjustable heat exchanger for reliably exchanging heat from a hot working fluid to a transfer fluid. The working fluid passes through an inlet plenum , at least one conduit that may be a tube or a plurality of tubes, and out of an outlet plenum . A chamber wall encloses the conduits creating a central chamber having interstitial spaces around the conduits . A transfer fluid passes through the interstitial spaces in a direction substantially opposite the working fluid, absorbing heat from the conduits . A bypass fluidically connects the transfer fluid source to central chamber proximate the inlet plenum . Cool transfer fluid bypasses a portion of the central chamber and is provided directly to the central chamber proximate the inlet plenum to cool structures there and reduce heat failures, while providing a constant flow of transfer fluid out of the heat exchanger

2005000, Jan 13, 2005

Jul 10, 2003

10/616527

John Angel - Pittsburgh PA, US
Gregory Homoki - Allison Park PA, US
Eric Jenkins - Pittsburgh PA, US
Clifford Mikesell - Wexford PA, US
James Oyler - Pittsburgh PA, US
C. Roland - Mars PA, US
Bryon Williams - Gibsonia PA, US

F28F009/02

165081000, 165158000

A tubesheet support arrangement supports a tubesheet within a vessel , the tubesheet maintaining a plurality of tubes at fixed radial spacings from one another with the tubes extending from the tubesheet on a tube projecting side of the radial plane RP. The tubesheet support arrangement comprises a fully circumferentially extending intermediary support element . The intermediary support element is subjected to compression due its support of the weight of the tubesheet and the tubes on the lower portion of the vessel