A water column, contained in a rigid pipe equipped with a foot valve, may be set in oscillation and bounced against a hydraulic spring at the lower end. In this way, water may be lifted inertially. The use of such induced flow pumping stretches back to at least the eighteenth century. After exploring these roots the paper proceeds to illustrate modern applications, mainly for hand-and wind-operated water-lifting systems in remote areas. Two arrangements for maintaining the water column in oscillation are examined. By analysis and experiment it is shown that greatly improved performance is achieved by permitting the water column to rebound freely.
EwbankT.Hydraulic and Other Machines for Raising Water, 1842, p. 372 (Tilt and Bogue, Fleet Street, London).
3.
BurtonJ. D.Joggle pumps using the induced flow principle. In Proceedings of the Sixth Conference on Fluid Machinery, 1979, Vol. 1, pp. 169–178 (Akademiai Kiado, Budapest).
4.
SelwoodP. R.BurtonJ. D.Induced flow reciprocating pump with rotodynamic characteristics. In Proceedings of the Fifth Conference on Fluid Machinery, 1975, Vol. 2, pp. 997–1009 (Akademiai Kiado, Budapest).
5.
BeauH. Germ. Pat. 110301, 1899.
6.
BeauH. US Pat. 1,047,489, 1912.
7.
BellocqT. US Pat. 1,941,593, 1934.
8.
CrewdsonE. Br. Pat. 44,3565, 1936.
9.
CrewdsonE.The use of compression waves in deep well and bore hole pumping. In Proceedings of the Institution of Civil Engineers, 1952, paper 5847, pp. 318–333.
10.
DickinsonHarland R.Intermittent pressure pumps. The Engineer, 14 June 1940, 540, 543.
11.
ManningT. E.CefisG.MencarelliE.Pulsa solar water oscillation pumps for rural water supply. In Proceedings of the 9th European Photovoltaic Solar Energy Conference, Freiburg, September 1989, pp. 1104–1106 (Kluwer, Dordrecht).
12.
BurtonJ. D.Inertial flow reciprocating devices for transfer lift and remote pumping. In Proceedings of the International Conference on Positive Displacement Pumps, Chester, October 1986, pp. 97–105 (BHRA, Cranfield).
13.
UsakovskiiV. M.Inertia Pumps, 1973, 200 pp. (Mashinostroenie, Moscow).
14.
BatchelorS.Wind pump systems. PhD thesis, The University of Reading, 1989.
15.
BurtonJ. D.ShortT. D.Induced flow reciprocating pumps. Part 2. Proc. Instn Mech. Engrs, Part A, Journal of Power and Energy, 1999, 213 (A5), 375–389.
