An annular seal may include a seal body configured for disposing around a rotor, a plurality of grooves and a plurality of projections formed on an inner circumferential surface of the seal body, and a plurality of dams circumferentially disposed on a first surface of the seal body. The first surface may extend radially from the inner circumferential surface of the seal body. The plurality of dams may be configured to increase a pressure of a working fluid contacting the plurality of dams such that the increase in the pressure may center the annular seal about the rotor.
申请公布号
WO2015030956(A1)
申请公布日期
2015.03.05
申请号
WO2014US47749
申请日期
2014.07.23
申请人
DRESSER-RAND COMPANY;RANZ, ANDREW J.;AYE, ZIN MIN;TO, CELESTE;DEGROOT, PHOEBE
发明人
RANZ, ANDREW J.;AYE, ZIN MIN;TO, CELESTE;DEGROOT, PHOEBE