HYBRID FLOW FAN APPARATUS
First Claim
Patent Images
1. A fan assembly for directing fluid flow in a hybrid radial and axial direction, the assembly comprising:
- a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis, wherein the frusto-conical outer diameter portion extends to a circumference of the backplate;
a plurality of blades extending from the backplate; and
an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith, wherein the backplate, the plurality of fan blades and the fan shroud form a fan subassembly,wherein an overall depth of the fan subassembly is approximately 20-35% of an overall fan subassembly diameter.
2 Assignments
0 Petitions
Accused Products
Abstract
A fan assembly for directing fluid flow in a hybrid radial and axial direction includes a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis (CL), a plurality of blades extending from the backplate, and an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith. The backplate, the plurality of fan blades and the fan shroud form a fan subassembly, and an overall depth of the fan subassembly is approximately 20-35% of an overall fan subassembly diameter (øD1).
-
Citations
49 Claims
-
1. A fan assembly for directing fluid flow in a hybrid radial and axial direction, the assembly comprising:
-
a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis, wherein the frusto-conical outer diameter portion extends to a circumference of the backplate; a plurality of blades extending from the backplate; and an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith, wherein the backplate, the plurality of fan blades and the fan shroud form a fan subassembly, wherein an overall depth of the fan subassembly is approximately 20-35% of an overall fan subassembly diameter. - View Dependent Claims (2, 3, 4, 7, 11, 14, 15, 16, 19, 24, 30, 33, 34, 37, 38, 39, 42)
-
-
5-6. -6. (canceled)
-
8-10. -10. (canceled)
-
12-13. -13. (canceled)
-
17-18. -18. (canceled)
-
20-23. -23. (canceled)
-
25-26. -26. (canceled)
-
28-29. -29. (canceled)
-
31-32. -32. (canceled)
-
35-36. -36. (canceled)
-
40-41. -41. (canceled)
-
43. A fan assembly for directing fluid flow in a hybrid radial and axial direction, the assembly comprising:
-
a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis; a plurality of blades extending from the backplate; and an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith, wherein the backplate, the plurality of fan blades and the fan shroud form a fan subassembly, wherein the total blade length is approximately 480-520% of the overall diameter of the fan subassembly. - View Dependent Claims (44)
-
-
45. (canceled)
-
46. A fan assembly for directing fluid flow in a hybrid radial and axial direction, the assembly comprising:
-
a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned relative to an axis; a plurality of blades extending from the substantially frusto-conical outer diameter portion of the backplate; and an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith, wherein the backplate, the plurality of fan blades and the fan shroud form a fan subassembly, wherein an inside diameter of the plurality of blades is approximately 50-75% of an overall diameter of the fan subassembly, and wherein the inside diameter of the plurality of blades is located radially outward from the inner diameter portion of the backplate. - View Dependent Claims (47, 48)
-
-
49. A fan assembly for directing fluid flow in a hybrid radial and axial direction, the assembly comprising:
-
a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis; an annular fan shroud; and a plurality of blades extending between the backplate and the fan shroud, wherein the backplate, the plurality of fan blades and the fan shroud form a fan subassembly, wherein an overall depth of the fan subassembly is approximately 20-35% of an overall fan subassembly diameter, wherein a discharge angle defined by the outer diameter portion of the backplate is oriented at approximately 65-80°
with respect to the axis,wherein an inside diameter of the fan inlet is approximately 80-90% of an overall diameter of the fan subassembly, wherein an inlet angle of the each of the plurality of blades is approximately 15-30°
,wherein an exit angle of each of the plurality of blades is approximately 40-90°
, wherein a total blade length is approximately 450-550% of the overall diameter of the fan subassembly, andwherein an inside diameter of the plurality of blades is approximately 50-75% of the overall diameter of the fan subassembly.
-
Specification