Measuring and testing – Blower – pump – and hydraulic equipment
Patent
1986-12-24
1988-11-01
Cuchlinski, Jr., William A.
Measuring and testing
Blower, pump, and hydraulic equipment
374112, 417 32, G01M 1900
Patent
active
047810645
ABSTRACT:
A method and apparatus for the protection of a hydraulic machine. The difference in temperature across the fluid inlet and the fluid outlet being taken and used to actuate means effectively to signify when the machine is operating outside of its required performance. In a preferred embodiment the temperature difference .DELTA.T is evaluated from the equation ##EQU1## where the efficiency .eta.p, the head H in meters and the temperature t.sub.2 of the fluid are all known.
REFERENCES:
patent: 1522273 (1925-01-01), Rissmann
patent: 2040086 (1936-05-01), Goodwillie
patent: 3225591 (1965-12-01), Orkney, Jr. et al.
patent: 3232519 (1966-02-01), Long
patent: 3582928 (1971-06-01), Gaertner
patent: 3699810 (1972-10-01), Takahashi
patent: 3707851 (1973-01-01), McAshau, Jr.
patent: 3918300 (1975-11-01), Weissrich et al.
patent: 3921435 (1975-11-01), Howard
patent: 4220010 (1980-09-01), Mueller et al.
patent: 4249697 (1981-02-01), Savage, Jr.
patent: 4265091 (1981-05-01), Kobayashi
patent: 4328678 (1982-05-01), Kono et al.
patent: 4336001 (1982-06-01), Andrew et al.
patent: 4510576 (1985-04-01), MacArthur
patent: 4549403 (1985-10-01), Lord et al.
"Thermodynamische Wirkungsgradmessung an Hydroaggregaten im Einbauzustand" 82 Olhydraulik und Pneumatik vol. 24, Nr. 6, Jun. 1980.
"Thermometric Method of Measuring Hydraulic Efficiency" by T. R. Foord et al., Water Power, Oct. 1964, pp. 432-434.
"Efficiency Measurements for Hydraulic Turbines by the Poirson Thermometric Method" by G. Willm & P. Campmas, La Houille Blanche, Supplement Au No. 6/1956.
"Methode Thermometrique de Mesure du Rendement des Turbines Hydrauliques", Revue Generale De L'Electricite, 28 Sep. 1929, vol. 26 pp. 487-497.
Yates, M. A., "Pumps-the Developing Needs", Mar. 31-Apr.-2, 1981, pp. 257-269.
Brand, F. L., "The Thermodynamic Method as a Means of Determining the Flow Through Hydraulic Machines", 1982, North Research and Construction vol. 28e, pp. 10.1-10.3.
Foord, T. R. et al., "New Developments in the Thermometric Method of Measuring Hydraulic Efficiency and Flow", 1964, NEL Report No. 130.
Cuchlinski Jr. William A.
Will Thomas B.
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