Cooling fan module

Patent metadata

Field	Value
Publication number	US-10844770-B2
Application number	US-201816208670-A
Country	US
Kind code	B2
Filing date	Dec 4, 2018
Priority date	Dec 4, 2018
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A cooling fan module is provided. The cooling fan module may include a frame, a fan assembly, a number of guide vanes, and a cylindrical deflector. The frame may include a sidewall that defines an opening and an outer periphery. The fan assembly may be disposed within the opening and include fan blades extending from a hub and terminating at a fan ring. The fan ring may have a curved profile. The number of guide vanes may be disposed radially around the opening. The cylindrical deflector may extend axially from the sidewall and radially surround the number of guide vanes. The cylindrical deflector may be disposed radially between the number of guide vanes and the outer periphery.

First claim

What is claimed is:

1. A cooling fan module comprising:
a frame including a sidewall extending in a radial direction and defining an opening, and an outer peripheral wall;
a fan assembly disposed within the opening and including fan blades extending from a hub and terminating at a fan ring, having a curved profile;
a number of guide vanes disposed radially around the opening;
a cylindrical deflector wall extending axially from the sidewall, radially surrounding the number of the guide vanes, and disposed radially between the number of guide vanes and the outer peripheral wall; and
a planar annular ring, wherein each of the guide vanes of the number of guide vanes are disposed between the planar annular ring and the sidewall.

2. The cooling fan module of claim 1 , wherein each of the guide vanes extend from the sidewall and are radially spaced apart from the cylindrical deflector wall.

3. The cooling fan module of claim 1 , wherein each of the guide vanes extend from the cylindrical deflector wall.

4. The cooling fan module of claim 1 , wherein the planar annular ring is connected to the cylindrical deflector wall.

5. The cooling fan module of claim 4 , wherein each of the guide vanes terminate, in an axial direction, at the planar annular ring.

6. The cooling fan module of claim 1 , wherein the opening defines an inner periphery and wherein a cross-section of inner periphery of the opening and a portion of the sidewall is T-shaped or L-shaped.

7. The cooling fan module of claim 1 , wherein the curved profile of the fan ring is arranged towards a downstream side of the frame and wherein the outer periphery of the frame includes a flange that extends axially away from the downstream side of the frame.

8. A cooling fan module comprising:
a frame including a sidewall defining an outer periphery and a central opening that defines an inner periphery, wherein the outer periphery and the inner periphery each define an axially extending flange, the sidewall includes a first section and a second section disposed radially inward and radially aligned with respect to the first section, and the central opening is radially aligned with the sidewall;
a fan assembly disposed within the opening and including fan blades that terminate at a fan ring that at least partially overlaps the inner periphery in a radial direction;
a cylindrical sleeve axially extending from a surface of the sidewall and disposed between the first and second sections; and
a number of guide vanes arranged circumferentially about the inner periphery and radially inward from the sleeve.

9. The cooling fan module of claim 8 , further comprising a planar annular ring wherein the planar annular ring is connected to and arranged orthogonal to the sleeve.

10. The cooling fan module of claim 9 , wherein the sleeve defines a first axial length and wherein each of the guide vanes define a second axial length that is less than or equal to the first axial length.

11. The cooling fan module of claim 10 , wherein the frame includes a sidewall that defines the surface and wherein each of the guide vanes are connected to the sleeve and the sidewall.

12. The cooling fan module of claim 11 , wherein the number of guide vanes, sleeve, and sidewall are integrally formed together by injection molding.

13. A cooling fan module for comprising:
a frame defining an outer periphery, wherein the frame further defines a central opening that defines an inner periphery;
a fan assembly disposed within the central opening and including a fan ring, wherein the fan ring includes a concave surface that at least partially surrounds the inner periphery;
a number of guide vanes arranged circumferentially about the inner periphery;
an annular deflector wall extending axially from a surface disposed radially between the outer periphery and the number of guide vanes; and
a planar annular ring wherein the planar annular ring is coupled to the annular deflector wall and configured to mitigate noise associated with recirculation of air through the fan assembly.

14. The cooling fan module of claim 13 , wherein at least one of the guide vanes is connected to the annular deflector wall.

15. The cooling fan module of claim 13 , wherein the planar annular ring is coupled to and arranged orthogonal to the annular deflector.

16. The cooling fan module of claim 15 , wherein the planar annular ring defines an inner periphery and wherein the inner periphery of the planar annular ring is disposed radially inward from an inner edge defined by one of the guide vanes.

17. The cooling fan module of claim 15 , wherein at least one of the guide vanes is connected to the planar annular ring.

18. The cooling fan module of claim 13 , wherein the surface is defined by a sidewall of the frame, wherein the sidewall of the frame includes a first section and a second section, wherein the first section is disposed between the inner periphery and the annular deflector wall and the second section is disposed between each disposed between the annular deflector wall and the outer periphery and wherein the first and second sections of the sidewall are axially offset from one another.

19. The cooling fan module of claim 18 , wherein the inner periphery includes a flange that extends axially from the first section of the sidewall.

20. The cooling fan module of claim 18 , wherein the outer periphery includes a flange that extends axially from the second section of the sidewall.

Assignees

• Brose Fahrzeugteile

Inventors

• Hong Tao
• Brehmer William
• Simofi-Ilyes Attila
• Mudge Derek

Classifications

• F04D29/326

  comprising a rotating shroud · CPC title

• F04D29/164

  of an axial flow wheel · CPC title

• F01P11/10

  Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers · CPC title

• F01P5/06

  Guiding or ducting air to, or from, ducted fans · CPC title

• B60K11/06

  with air cooling · CPC title