Speed-related control mechanism for a pump and control method

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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F04B 49/08 (2006.01) F04D 15/00 (2006.01)

Patent

CA 2581120

A pump system includes a fixed or variable capacity pump and a speed-related control mechanism to alter the capacity of a variable capacity pump or to alter the relief pressure of a fixed capacity pump in response to changes in the operating speed of the pump. A pressure generator comprising a volume of working fluid is rotated at a speed related to the operating speed of the pump and creates a forced vortex in the working fluid. The pressure induced in the working fluid of the forced vortex is used as a speed~related control to alter the discharge pressure of the pump as desired.

L'invention porte sur un système de pompage comprenant une pompe à capacité fixe ou variable et un mécanisme de régulation de vitesse de façon à modifier la capacité d'une pompe à capacité variable ou à modifier la pression d'une pompe à capacité fixe en réaction aux modifications de la vitesse de fonctionnement de la pompe. Un générateur de pression comprenant un volume de fluide de travail tourne à une vitesse par rapport à la vitesse de fonctionnement de la pompe et crée un vortex forcé dans le fluide de travail. La pression induite dans le fluide de travail du vortex forcé est utilisée comme moyen de régulation lié à la vitesse pour modifier la pression de refoulement de la pompe.

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