Pumps – Processes
Patent
1975-11-24
1980-06-03
Gluck, Richard E.
Pumps
Processes
417202, 417245, 417323, 417237, 417223, F04B 4900, F04B 2314
Patent
active
042059453
ABSTRACT:
A centrifugal boost pump, a primary centrifugal pump and a dynamic machine are driven through a common drive shaft. At low speeds, such as during pump start-up, the elements are in the aforementioned fluid serial relationship such that the dynamic machine, functioning as a pump, provides the primary fluid pressurization. Once a predetermined primary pump discharge pressure is attained, a clutch disengages the centrifugal boost pump and dynamic machine from the primary centrifugal pump, and the discharge of the dynamic machine is routed to a low pressure source. Thereafter, primary fluid pressurization is accomplished by the primary centrifugal pump which also pumps fluid through the dynamic machine, now functioning as a motor and driving the centrifugal boost pump.
REFERENCES:
patent: 1083568 (1914-01-01), Ungar
patent: 1255273 (1918-02-01), Battin
patent: 1982841 (1934-12-01), Tamuni
patent: 2003456 (1935-06-01), Nardone
patent: 2467398 (1949-04-01), Miller
patent: 2475316 (1949-07-01), Garraway
patent: 2679206 (1954-05-01), Huber
patent: 2838908 (1958-06-01), Forster
patent: 3431857 (1969-03-01), Jenning et al.
patent: 3851998 (1974-12-01), Downing
General Electric Company
Gluck Richard E.
Lampe, Jr. Robert C.
Lawrence Derek P.
Policinski Henry J.
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