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US 6,185,954 B1Granted
Tangential fan scroll and discharged diffuser design
AssigneeAmerican Standard Inc.
InventorsWilliam A. Smiley, III, Glenn J. McClellan
Life of this patent
Estimating the term…
Abstract
An air conditioning unit comprising: a housing having a first half and a second half; the first half of the housing containing an indoor heat exchange coil and a blower moving air through said coil from at least a housing inlet to a housing outlet. The blower discharges into a diffuser duct having a diffuser section with a first segment and a second segment where the first and second segments have first and second respective and differing angles of diffusion.
Claims13
A cross flow blower housing comprising:
- a scroll housing section having an expanding scroll section from a starting line to a finishing line;
- a linear housing section contiguous with the finishing line of the scroll housing section and extending linearly therefrom;
- and
- a cutoff section having a first segment angle at a first angle relative to the linear housing section and having a second segment angle at a second angle relative to the linear housing section.
1 more element
A blower having a diameter D and an axis comprising:
- a scroll housing about the fan having a starting line located a radial distance Ri from the fan axis, and including a scroll expansion section starting at the beginning line and radially expanding in arc to a finishing line Rf relative to the fan axis, and further including a linear diffusion segment starting at the finish line and continuing linearly therefrom at a first distance;
- and
- a fan diffuser arranged to separate a blower intake of the blower from a blower discharge of the blower, the fan diffuser having a cutoff end proximal the blower, and a first segment continuing from the cutoff in a direction away from the blower and expanding from the linear portion at a first angle for a first distance, and a second expansion segment located after the first expansion segment and continuous therewith, the second expansion segment expanding from the linear portion at a second angle for a second distance.
Dependencies are inferred from the claim text.