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CLASS 8 EUROINVENT 2010 CLASA 8<br />

8.8.<br />

Title EN Monophase asynchronous motor with multiple rotors<br />

Titlu RO Motor asincron monofazat cu rotoare multiple<br />

Authors Dorel Cernomazu, Leon Mandici, Elena-Daniela Olariu<br />

Institution Universitatea „Ştefan cel Mare” din Suceava<br />

Patent no. Application A/00729/18.09.2008<br />

Description<br />

EN<br />

Descriere<br />

RO<br />

The invention describes a monophase asynchronous motor<br />

with reversible rotation direction and two rotation speeds<br />

having switchable shielding poles and more disk-rotors. The<br />

asynchronous motor it realized in accordance with the wellknown<br />

“Grosu” solution and it consists of four inductor<br />

modules and five disk-rotors wherein each inductor module<br />

is consists of an open E-shaped magnetic core having three<br />

identical coils, as follows: a primary coil permanently<br />

connected in short-circuit and two identical coils<br />

representing the supplied winding and the auxiliary shielding<br />

coil and of two frontal yokes meant to close the column flux<br />

and located at a certain distance apart from the columns<br />

extremities in order to create an air-gap wherein a disk-rotor.<br />

The motor can be realized with one, two, three, four or five<br />

rotors and can be made with one or with more propellers.<br />

Applications: the realization of an complex driving system,<br />

multiple use possibility<br />

Advantages: constructional simplicity, operational reliability,<br />

the possibility reversion of the sense of rotation, operation<br />

with the double-stage of rotative speed.<br />

Invenţia descrie un motor asincron monofazat cu sens de<br />

rotaţie reversibil şi două trepte de viteză având poli ecranaţi<br />

interschimbabili şi mai multe rotoare disc. Motorul este<br />

realizat pe baza soluţiei „GROSU” şi constă din patru<br />

module inductoare şi cinci rotoare –disc şi fiecare modul<br />

inductor este sub forma unui sistem magnetic tip E cu trei<br />

înfăşurări identice, după cum urmează: o înfăşurare primară<br />

scurtcircuitată permanent şi două înfăşurări identice una fiind<br />

alimentată şi cealaltă fiind ecranată numită şi auxiliară.<br />

Motorul poate fi realizat cu unul, două, trei, patru sau cinci<br />

rotoare.<br />

Aplicaţii: realizarea unor sistem de acţionare complexe,<br />

posibilităţi multiple de utilizare.<br />

Avantaje: simplitate constructivă, fiabilitate în funcţionare,<br />

posibilitatea reversării sensului de rotaţie, funcţionare în<br />

două trepte de viteză.<br />

111

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