An impeller assembly is for a fluid machine, such as a compressor, and includes a first, main body and a second body. The main body includes a first section providing at least a substantial portion of either an impeller disc or an impeller cover and a second section spaced generally axially from the first section and providing a portion of the other one of the disc or the cover. A plurality of integrally formed blades extend between and connect the main body first and second sections such that the main body is generally of one piece construction. A plurality of flow channels are defined between the blades and a plurality of access openings extend into the flow channels. The second body provides a remainder of the disc or cover and is attachable to the main body to substantially form an impeller and to close all of the access openings.
申请公布号
WO2006133363(A2)
申请公布日期
2006.12.14
申请号
WO2006US22307
申请日期
2006.06.08
申请人
DRESSER-RAND COMPANY;RANZ, ANDREW, JASON;SEIB, DAVID, CARL