Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Cross flow runner
Patent
1981-05-18
1983-08-02
Coe, Philip R.
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Cross flow runner
415 98, 415175, F04D 500
Patent
active
043963471
ABSTRACT:
A centrifugal pump and a pumping system that recover hydraulic energy in response to flow capacity reduction and spontaneously provide a recirculating flow at low capacities when pump cooling is needed. From a upstream source the fluid is guided by two suction lines to two parallel pumping mechanisms housed by a common discharge casing. Said pumping mechanisms have a combined hydraulic characteristic that the first pumping mechanism will force a reverse flow through the second pumping mechanism, when pump discharge is reduced by the system below a certain low flow rate. The reverse flow will then return to the upstream fluid source through a suction line. The pump is thereby protected from overheating by a circulating flow at low flow capacities. At the same time, said reverse flow generates a turbine action on the second pumping mechanism and transmits the contained hydraulic energy back to the rotor and thereby results in power saving at low flow capacities.
REFERENCES:
patent: 885867 (1908-04-01), Salzer
patent: 888654 (1908-05-01), Prindle
patent: 1158978 (1915-11-01), Buchi
patent: 1213889 (1917-01-01), Lawaczeck
patent: 1260639 (1918-03-01), Carter
patent: 1456051 (1923-05-01), Carter
patent: 2073733 (1937-03-01), Doty
patent: 2426950 (1947-09-01), Riede
patent: 2701530 (1955-02-01), Schellerer
patent: 3246605 (1966-04-01), Fisher
patent: 3336876 (1967-08-01), Streuli
patent: 3794456 (1974-02-01), Jelusic
patent: 3944406 (1976-03-01), Jagusch et al.
"Centrifugal Pumps" Igor Karassik and Roy Carter pp. 240-245, Dodge Corporation, NY, NY.
"Chemical Engineering Handbook" Perry and Chilton, 5th Edition McGraw--Hill Book Co., pp. 24/36-24/45.
"Fluid Mechanics of Turbomachinery", George Wislicenus, 1st Edition McCraw--Hill Book Co. Inc. 1947.
Coe Philip R.
Stinson Frankie L.
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