Displacement machine with electronic motor synchronization

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

Patent

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Details

F04C 29/00 (2006.01) G05D 13/62 (2006.01) H02P 5/50 (2006.01)

Patent

CA 2164305

In a displacement machine for compressible media having at least two rotors (14a-c) which are configured as profiled bodies and whose profiles engage with one another in the manner of gearwheels during rotation, the individual rotors are respectively driven by their own electric motors (9a-c) and are kept synchronous in rotational speed and angular position by electronic closed-loop and/or open-loop control units (1; 25a-c) in accordance with the transmission ratio of the displacer unit stage. The electronics can be employed for monitoring further operating data of the pump and also for matching the pump output by changing rotational speed. It can also be used as an overload protection. The rotational speeds and rotational attitudes of the rotors are controlled individually and independently of one another, the required attitude values being specified to the individual control units (25a-c) by means of a main control unit (1).

Dans une machine volumétrique pour milieux compressibles ayant au moins deux rotors (14a-c) constitués de corps profilés dont les profils s'engrènent lorsqu'ils sont mis en rotation, les rotors individuels sont entraînés chacun par son propre moteur électrique (9a-c) et leur vitesse de rotation et leur position angulaire sont synchronisées par des unités électroniques de réglage et/ou de commande (1; 25a-c) en fonction du rapport de multiplication de l'étage volumétrique. On peut utiliser des composants électroniques pour surveiller d'autres données de fonctionnement de la pompe et pour adapter la capacité de la pompe par des changements de la vitesse de rotation, ainsi que pour assurer une protection contre des surcharges. La vitesse de rotation ou la position angulaire des rotors sont réglées individuellement et indépendamment les unes des autres, des valeurs de consigne concernant la position angulaire étant fournies aux unités individuelles de réglage (25a-c) par une unité principale de commande (1).

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