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Water Pump Porous Bearing Design Analysis
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1972 by SAE International in United States
Annotation ability available
Applying hydrodynamic lubrication theory for porous bearings and boundary lubrication theory, this paper presents a method of analyzing the performance of a water-lubricated sleeve type porous bushing in an automotive water pump design. Relations of bearing load capacity versus shaft speed have been obtained and compared for sintered iron-graphite bushings (a cermet material developed by the Ford Motor Co.), sintered iron or sintered bronze bushings, and steel bushings. The load capacity was computed, based on a minimum allowable film thickness during hydrodynamic operation, and on a maximum allowable temperature during boundary lubrication operation. The results show that sintered iron-graphite bushings are superior to sintered iron or sintered bronze bushings, as well as steel bushings, in this application, due to the lower coefficient of friction. The computations are in agreement with bench test and vehicle test results on an experimental water pump having a sintered iron-graphite bushing, both analytical and experimental results indicating acceptable performance of the coolant lubricated sintered iron-graphite bushing. The present analysis, therefore, offers a bearing design method for this or similar applications.
CitationTing, L., Hall, D., and Mayer, J., "Water Pump Porous Bearing Design Analysis," SAE Technical Paper 720215, 1972, https://doi.org/10.4271/720215.
- Humenik, M. Jr., Hall D. W., and Van Alsten R. L., “Graphite-Base Cermets-A New Material for Bearing, Electrical and High Temperature Applications.” Metal Progress (April 1962), p. 101.
- Morgan V. T. and Cameron A., “Mechanism of Lubrication in Porous Metal Bearings.” Proc. Conf. Lubrication and Wear, Inst. Mech. Engrs., London (1957), pp. 151-157.
- Cameron A., Morgan V. T., and Stainsby A. E., “Critical Conditions for Hydrodynamic Lubrication of Porous Metal Bearings.” Proc. Inst. Mech. Engrs., Vol. 176, No. 28 (1962), pp. 761-769.
- Rouleau W. T., “A Note on the Lubrication of Porous Metal Bearings.” J. Basic Engineering, Ser. D, Vol. 84 (March 1962), pp. 205-206.
- Rouleau W. T., “Hydrodynamic Lubrication of Narrow Press-Fitted Porous Metal Bearings.” J. Basic Engineering (March 1963), pp. 123-128.
- Gargiulo, E. P. Jr. and Gilmour P. W., “A Numerical Solution for the Design of Externally Pressurized Porous Gas Bearings; Thrust Bearings.” J. Lubrication Tech., Vol. 90, Ser. F. (1968), pp. 810-817.
- Tao L. N., “A Theory of Lubrication in Short Journal Bearings With Turbulent Flow.” ASME Trans., Vol. 80 (November 1958), pp. 1734-1740.
- Tao L. N. and Donovan W. F., “Through-Flow in Concentric and Eccentric Annuli of Fine Clearance With and Without Relative Motion of the Boundaries.” ASME Trans., No. 77 (November 1955), pp. 1291-1301.
- Raimondi A. A. and Boyd J., “A Solution for the Finite Journal Bearing and Its Application to Analysis and Design: III.” ASLE Trans., Vol. 1, No. 1, pp. 194-209.
- Carriere D. L., “Design and Application of Plain Journal Bearings to Small Gas Turbine Engines.” SAE Transactions, Vol. 76, paper 670063.
- Ting L. L. and Mayer, J. E. Jr., “The Effects of Temperature and Inertia on Hydrostatic Thrust Bearing Performance.” J. Lubrication Technology, Vol. 93, F, No. 2 (1971), pp. 307-312.
- Rouse H. and Howe J. W., “Basic Mechanics of Fluids.” New York: John Wiley and Sons, Inc., 1953.
- Fuller D. D., “Theory and Practice of Lubrication for Engineers.” New York: John Wiley and Sons, Inc., 1956.
- Wilcock D. F. and Booser E. R., “Bearing Design and Application.” New York: McGraw-Hill Co., 1957.
- Pinkus O. and Sternlicht B., “Theory of Hydrodynamic Lubrication.” New York: McGraw-Hill Co., 1961.
- Rabinowicz E., “Friction and Wear of Materials.” New York: John Wiley and Sons, Inc. (1956), p. 90.
- Goetzel C. G., Rittenhouse J. B., and Singletary J. B., “Space Materials Handbook.” Tech. Documentary Rep. No. ML-TDR-64-40, USAF, pp. 249, 273.
- Jost H. P., “Pure Molybdenum Disulphide.” Sheet Metal Ind., Vol. 33 (1956), pp. 679-697.