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Internally-cooled centrifugal compressor with cooling jacket formed in the diaphragm

United States Patent

August 26, 2014
View the Complete Patent at the US Patent & Trademark Office
An internally-cooled centrifugal compressor having a shaped casing and a diaphragm disposed within the shaped casing having a gas side and a coolant side so that heat from a gas flowing though the gas side is extracted via the coolant side. An impeller disposed within the diaphragm has a stage inlet on one side and a stage outlet for delivering a pressurized gas to a downstream connection. The coolant side of the diaphragm includes at least one passageway for directing a coolant in a substantially counter-flow direction from the flow of gas through the gas side.
Moore; James J. (Midlothian, TX), Lerche; Andrew H. (San Antonio, TX), Moreland; Brian S. (San Antonio, TX)
Dresser-Rand Company (Olean, NY)
12/ 930,751
January 14, 2011
STATEMENT OF GOVERNMENT INTEREST This invention was made with government support under Government Contract No. DE-FC26-05NT42650 awarded by the US Department of Energy. The government has certain rights in the invention.