HYDROSTATIC JOURNAL SEAL NONROTATINC FLOW AS A FUNCTION OF PRESSURE DIFFERENTIAL TEST DATA POINTS- WATER (0 RPM) CALCULATED DATA (0 RPM)

Abstract

Fig. 17 Hydrostatic journal seal wafer flow data correlation with esti-mated flows of the latter two curves is that the test seal had an initial radial clearance of 0.0024 in. and was analyzed to result in a running clearance of 0.0014 in. at a 2500-psi pressure differential and 30,000 rpm. The significance of the 0.0008-in. clearance curve is that, with design optimizing the seal cross section, it is expected that the seal flexibility could be increased, thereby resulting in a running clearance and thus a leakage flow comparable to those of a rigid seal with only 0.0008-in. clearance from an initial clearance of about 0.0025 in. In addition, because the seal is floating and is flexible, its ability to follow radiaL movements of the rotating wear ring without contact is excellent. Also, since a close running clearance could be achieved even with relatively large buildup clearances, the radially flexible hy

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oai:CiteSeerX.psu:10.1.1.919.3710Last time updated on 11/1/2017

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