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Electrical rotating machine comprising rotor and stator for the passage of fluid

A fluid and stator technology, applied in the field of rotating electrical machines, can solve the inherent efficiency limitations and disadvantages of stator size motors

Pending Publication Date: 2021-07-09
INST FR DU PETROLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, this large gap is disadvantageous in ensuring that the magnetic flux passes between the rotor and the stator, and thus has limitations on the stator size as well as on the intrinsic efficiency of the machine at the same delivered power

Method used

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  • Electrical rotating machine comprising rotor and stator for the passage of fluid
  • Electrical rotating machine comprising rotor and stator for the passage of fluid
  • Electrical rotating machine comprising rotor and stator for the passage of fluid

Examples

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Embodiment Construction

[0026] figure 1 The rotating electric machine shown in is in this example, for example, an electric motor, comprising a rotor 10 and a stator 12 coaxially nested one inside the other after assembly, so that the rotor rotates freely.

[0027] In the remainder of the description the machine is a synchronous machine with a single pair of poles, as an example only.

[0028] This does not in any way exclude any other motors such as squirrel cage or wound rotor asynchronous motors.

[0029] according to figure 1 The rotor of the electric machine comprises, in a manner known per se, a preferably magnetic shaft 14 on which is placed a stack of identical planar ferromagnetic laminations which are assembled to one another by any known means to form a rotor body 16 .

[0030] The rotor supports flux generators (not shown), mainly permanent magnets of length substantially equal to the length of the rotor body.

[0031] The stator also comprises a lamination of the same planar ferromagn...

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PUM

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Abstract

The invention relates to an electrical machine comprising a rotor (10) and a stator (12). The stator is provided with a plurality of radial passages (28) arranged circumferentially around the stator,magnetic flux generators (34) housed in the passages, and a stator bearing (24) receiving the rotor. According to the invention, the radial passages (28) comprise fluid circulation galleries (36) facing the magnetic flux generators (34).

Description

[0001] This application is a divisional application of China National Application No. 201680055471.X, titled "Rotating Electric Machine Including Stator and Rotor for Fluid Passing". The parent application was submitted on September 7, 2016, and the international application No. is Chinese national phase application for PCT / EP2016 / 071095. technical field [0002] The invention relates to a rotating electrical machine comprising a stator and a rotor for the passage of fluid. Background technique [0003] Generally, such electric machines consist of a stator and a rotor arranged coaxially inside one another. [0004] The rotor consists of a rotor body which supports flux generators such as permanent magnets or windings. [0005] The rotor is generally housed inside a stator, which supports a flux generator in the form of electrical windings (or armature windings) to generate a magnetic field, making it possible to drive the rotor in rotation in relation to the magnetic field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/20
CPCH02K1/20H02K9/197H02K3/24H02K7/088H02K9/00H02K5/128H02K5/12H02K21/14H02K9/19H02K9/02H02K2205/09H02K21/44
Inventor L·法威D·贝托尼
Owner INST FR DU PETROLE