Granted Patent B2

US 12,489,341 · App. 18/022,057 · Granted Dec 2, 2025

Inventors: Klaus Büttner (Hollstadt, DE); Reiner Grillenberger (Windsbach, DE); Tobias Katzenberger (Bad Königshofen STT Unteressfeld, DE); Klaus Kirchner (Ostheim, DE); Matthias Warmuth (Windshausen, DE)

Assignee: Innomotics GmbH

H02K9/06H02K5/18

Abstract

Claims (13)

1 . A self-ventilated electrodynamic rotary machine, comprising:

a housing configured to at least partially axially enclose the rotary machine;

a fan connected in a rotationally fixed manner to a shaft on a ventilation side of the rotary machine and configured to generate a main cooling air flow when the shaft rotates about an axis, said fan comprising a cover which is configured to direct the main cooling air flow onto the housing and is structured to improve cooling of the housing; and

an air guide element detachably fixed to the cover to generate an additional cooling air flow said air guide element when viewed in a circumferential direction, having a segmented design and configured as separate part for retrofitting to the cover depending on a thermal requirement of the rotary machine,

wherein the air guide element comprises ridges and air guide surfaces located between the ridges, with openings located between the air guide surfaces.

2 . The self-ventilated electrodynamic rotary machine of claim 1 , wherein the air guide surfaces are angled with respect to the axis.

3 . The self-ventilated electrodynamic rotary machine of claim 1 , wherein the air guide element includes segments of axially different extents and/or different numbers of openings.

4 . The self-ventilated electrodynamic rotary machine of claim 1 , further comprising a plurality of said guide element of segmented design, with the guide elements disposed axially along the housing.

5 . The self-ventilated electrodynamic rotary machine of claim 1 , further comprising a structure at an axial end of the cover to reduce an inner radius of the cover.

6 . The self-ventilated electrodynamic rotary machine of claim 5 , wherein the structure is configured in one of two ways, a first way in which the structure is a reducing element provided at least in one section of the cover in a circumferential direction of the cover, a second way in which the axial end of the cover is inclined radially to the axis.

7 . The self-ventilated electrodynamic rotary machine of claim 1 , wherein the cover has an essentially pot-shaped configuration.

8 . The self-ventilated electrodynamic rotary machine of claim 1 , wherein the cover has an inner radius which is larger than an outer radius of the housing.

9 . The self-ventilated electrodynamic rotary machine of claim 1 , wherein the housing includes at least one section provided with fins.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (11)