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1. (WO2017154023) MOTOR WITH POSITIVE DISPLACEMENT HELICAL PUMP INSIDE MOTOR SHAFT

Pub. No.:    WO/2017/154023    International Application No.:    PCT/IN2017/050083
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: H02K 15/00
H02K 7/08
F04C 2/00
F04C 15/00
Applicants: SONA PUMPS
Inventors: PATEL, Ankur Natwarlal
Title: MOTOR WITH POSITIVE DISPLACEMENT HELICAL PUMP INSIDE MOTOR SHAFT
Abstract:
The present invention relates to motor with positive displacement helical pump inside motor shaft comprises a stator body (5) within which the rotor (14) is rotatably mounted, helical rotating shaft (15) rotatably positioned inside the rotor (14) and having helical inner surface and helical stationary shaft (16) having number of lobes (16a) on outer surface thereof. The helical stationary shaft (16) is fixedly coupled in non‐rotatable position at its both ends with the fluid inlet means through which fluid enter and the fluid outlet means through which fluid exit the pump. Here, the helical rotating shaft (15) is rotated with respect to helical stationary shaft (16) along with the rotation of rotor (14) through which the fluid is pumped from inlet means to outlet means through cavities (17) formed between the lobes (16a) and helical inner surface (15d). Thus pumping and motoring functions are performed within motor section (2).