F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 13/06 (2006.01) F04B 23/00 (2006.01) F04D 15/00 (2006.01) G05D 7/06 (2006.01)
Patent
CA 2396634
In the process according to the invention for determining a nominal values curve of an installation (H installation (Q), P installation(Q)) for controling the pump capacity of a pump (6) driven by an electric motor (10) with speed control in a closed system with variable capacity requirement, first all consumers in the installation are closed, one consumer operation parameter is determined at a consumer (4-n) arranged at a distance from the pump, the pump capacity is varied until the consumer operation parameter has reached a predetermined value, and, once this value has been reached, a pair of pump parameters representative for the instantaneous pump capacity is determined and stored in the controller. This measurement is repeated with different consumers being open, and from the stored values of the pairs of pump parameters the curve of nominal values (H installation(Q), P installation(Q)) of the installation is calculated by way of a mathematical process for establishing a curve.
Pumpenfabrik Ernst Vogel Gesellschaft M.b.h.
Riches Mckenzie & Herbert Llp
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