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TECHNICAL PAPERS

Hydraulic Analysis of a Reversible Fluid Coupling

[+] Author and Article Information
Charles N. McKinnon

Boeing North American, Downey, CA

Danamichele Brennen

McGettigan Partners, Philadelphia, PA

Christopher E. Brennen

California Institute of Technology Pasadena, CA 91125

J. Fluids Eng 123(2), 249-255 (Dec 05, 2000) (7 pages) doi:10.1115/1.1350819 History: Received August 04, 2000; Revised December 05, 2000
Copyright © 2001 by ASME
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References

Stepanoff, A. J., 1957, Centrifugal and Axial Flow Pumps, Wiley, New York.
Brennen, C. E., 1994, Hydrodynamics of Pumps, Oxford University Press and Concepts ETI, Inc.
Fortunato, E., and Clements, H. A., 1979, “Marine reversing gear incorporating single reversing hydraulic coupling and direct-drive clutch for each turbine,” ASME Paper No. 79-GT-61.
Clements, H. A., and Fortunato, E., 1982, “An advance in reversing transmissions for ship propulsion,” ASME Paper No. 82-GT-313.
Clements, H. A., 1989, “Stopping and reversing high power ships,” ASME Paper No. 89-GT-231.
Nufrio, R., Schultz, A. N., and McKinnon, C. N., 1987, “Final report—reverse reduction gear/reversible converter coupling test and evaluation,” PM-1500B.
Zekas, B. M., and Schultz, A. N., 1997, “Unique reverse and maneuvering features of the AOE-6 reverse reduction gear,” ASME Paper No. 97-GT-515.
By,  R. R. and Lakshminarayana,  B., 1995, “Measurement and analysis of static pressure field in a torque converter pump,” ASME J. Fluids Eng., 117, pp. 109–115.
Brun,  K., Flack,  R. D., and Gruver,  J. K., 1996, “Laser velocimeter measurements in the pump of an automotive torque converter. Part II—Unsteady measurements,” ASME J. Fluids Eng., 118, pp. 570–577.
Gruver,  J. K., Flack,  R. D., and Brun,  K., 1996, “Laser velocimeter measurements in the pump of an automotive torque converter. Part I—Average measurements,” ASME J. Fluids Eng., 118, pp. 562–569.
By,  R. R., Kunz,  R., and Lakshminarayana,  B., 1995, “Navier-Stokes analysis of the pump flow field of an automotive torque converter,” ASME J. Fluids Eng., 117, pp. 116–122.
Schulz,  H., Greim,  R., and Volgmann,  W., 1996, “Calculation of three-dimensional viscous flow in hydrodynamic torque converters,” ASME J. Fluids Eng., 118, pp. 578–589.
Balje, O. E., 1981, Turbomachines. A Guide to Design, Selection and Theory, Wiley, New York.

Figures

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Cross section of reversible fluid coupling showing key locations in the fluid cavity
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Sketch showing the subdivision of the flow into streamtubes
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Velocity triangle at the turbine/pump transition station, i=1. Flow is from the right to left, the direction of rotation is upward and the angles are shown as they are when they are positive.
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Cross section of a turning vane
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Efficiency and torque coefficients for the reversible coupling using Cpa=Cta=0.7,Cpb=Ctb=1.0,Cv=0.36,Csw=0.02,Cw=0.005 and an effective turning vane discharge angle of −72.8 deg
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Velocity of turning vane discharge jets for the same conditions as listed in Fig. 5
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Meridional velocity distributions at the transition stations for four different slip values

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