US 2023/0044966 A1Published application

Energy efficient motor-generator

AssigneePAL-K Dynamics Inc.

InventorKUNJIMON THEKYPEEDIKAYIL KUTTYAMU

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Abstract

The disclosure relates to an energy efficient motor-generator which includes a stator, a main winding (M) of the stator for generating a rotating magnetic field (RMF), and a rotor disposed to rotate relative to the main winding (M) of the stator due to the RMF. The stator further includes a first additional winding (F) for producing an alternating EMF and a second additional winding (E) for producing a corresponding alternating EMF due to the rotation of the rotor. The two alternating EMFs are harvested through an electronic control unit (ECU) interfaced to the stator for continuously supplying power for the working of the motor-generator and for supplying power to drive electrical loads, respectively.

Claims26

Dependent claims

A motor-generator, comprising:

a stator comprising a main winding configured to generate a rotating magnetic field (RMF) upon providing a main AC power supply to the main winding of the stator;
an electronic control unit (ECU) interfaced to the stator;
and
a rotor disposed to rotate relative to the main winding of the stator due to the RMF, wherein:
the stator further comprises a first additional winding and a second additional winding, wherein a rotation of the rotor induces an alternating EMF in the first additional winding of the stator, wherein the alternating EMF induced in the first additional winding is fed back to the main winding of the stator throughout a rotation cycle of the rotor,
wherein the rotation of the rotor further induces an alternating EMF in the second additional winding of the stator, wherein the alternating EMF induced in the second additional winding is harvested through the ECU interfaced to the stator to supply power to an electrical load.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/875,120Filed 27 Jul 2022
Priority: IN 2021410356536 Aug 2021
Published: 9 Feb 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H02P 7/347
Using Ward-Leonard arrangements: in which only the generator field is controlled
H02P 25/22
Characterised by the circuit arrangement or by the kind of wiring: multiple windings; Windings for more than three phases
H02K 17/168
Having rotors with internally short-circuited windings, e.g. cage rotors: having single-cage rotors
H02K 17/30
Asynchronous induction motors: structural association of asynchronous induction motors with auxiliary electric devices influencing the…

Family

US 12,136,897 B2Related patent
US 2023/0044966 A1This patent

From the US filing history. Foreign family members aren’t listed.

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