Furnace air handler blower with enlarged backward curved impeller and associated method of use
US9017011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jun 29, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/4226
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blower having a blower housing having a cutoff and a top portion with an air outlet opening, a fan within the blower housing, the fan being adapted for rotation about a fan axis and having an outer diameter with a distance between the outer diameter of the fan and the top portion of the air outlet opening extending along a vertical line between the fan axis and the air outlet opening being less than seventy-five percent of the distance between the outer diameter of the fan and the cutoff of the blower housing extending along a line between the fan axis and the cutoff, and a motor having a stator and a rotor, the rotor being rotatably coupled to the stator for rotation about the fan axis, the rotor and fan being coupled such that the fan rotates with the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.