CA1134666A - Air circulating device for mixing room air - Google Patents
Air circulating device for mixing room airInfo
- Publication number
- CA1134666A CA1134666A CA000347085A CA347085A CA1134666A CA 1134666 A CA1134666 A CA 1134666A CA 000347085 A CA000347085 A CA 000347085A CA 347085 A CA347085 A CA 347085A CA 1134666 A CA1134666 A CA 1134666A
- Authority
- CA
- Canada
- Prior art keywords
- air
- fan
- constrictor
- mounting means
- collar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/088—Ceiling fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
- Duct Arrangements (AREA)
Abstract
AIR CIRCULATING DEVICE FOR MIXING ROOM AIR
Abstract An air circulating device for disposition within a room and directing an airstream vertically to mix room air to prevent temperature stratification. A fan and motor assembly supported by a support structure drives the stream of air through a multi-channelled or honeycomb body which removes swirling currents from the airstream and results in a linear airstream effective for a range of several feet. A nozzle increase stream velocity and range.
Abstract An air circulating device for disposition within a room and directing an airstream vertically to mix room air to prevent temperature stratification. A fan and motor assembly supported by a support structure drives the stream of air through a multi-channelled or honeycomb body which removes swirling currents from the airstream and results in a linear airstream effective for a range of several feet. A nozzle increase stream velocity and range.
Description
Specification m e present invention concerns a device for use in enclosed areas for the purpose of circulating ambient air to avoid temperature stratification Heated air within a room tends to rise by convec-tion resulting in that area immediatel~ below a ceiling or roof being warmer than the habitable area immediately above the floor, The collection of warm air in the upper non-habitable limits of a room is undesirable, primarily because of accentuated heat loss through the ceiling or roof structure. A savings in energy used for heating is effected by continuous mixing of the warmer, elevated air with that air in the lower habitable portion of the room.
Solutions to the avoidance of temperature strati-fication have been attempted with devices having vertically disposed ducts which transfer fan driven air between upper and lower room areas. While this solution is practical in some instances, there are some instances when such a duct is objectionable as it may detract from room use and appearance.
m e present invention is embodied within an air circulating device including a fan and motor assembly for driving a column shaped flow of air for the purpose of mixing air of different temperatures within a closed area.
The present device utilizes a perforate body, such as a honeycomb structure, to directionalize the fan discharge by removing swirlins air currents to effectively provide a columnar airflow. Accordingly, an effective airflow may be discharged for a range of several feet, as between ceiling and floor, without utilization of a duct. A
1134fai~i6 nozzle or constrictor is provided downstxeam from the perforate structure to increase airflow velocity enhanc-ing the effectiveness of the airflow.
The present invention includes the provision of an air circulating device for use in enclosed areas for discharging a vertical airflow so as to mix room air, which normally has a tendency to thermally stratify while avoiding use of a duct thereby avoiding visual detraction from and interference with use of a room area.
The present invention is embodied within an air circulating device for use in an enclosed room area to prevent temperature stratification, said device compris-ing a support structure adapted for attachmçnt to a super-jacent support, a fan and motor assembly supported by said support structure with said fan on a motor output shaft, mounting means on said support structure past which fan discharged air moves, a perforate body carried by said mounting means and having multiple passageways constraining passing fan discharged air for formation of a linear stream of air, and a constrictor subjacent said perforate body and serving as a nozzle to constrict and accellerate the stream of air to enhance stream range and hence effect-iveness.
In the accompanying drawing:
Figure 1 is an elevational view of the device located intermediate the ceiling and floor of a room;
Figure 2 is an elevational view of the device with fragments broken away and parts removed along a centerline for purposes of illustration;
Figure 3 is a horizontal sectional view taken down-wardly along line 3-3 of Figure 2;
~13~1~ii,it~
Figure 4 is a view similar to Figure 2 but show$ng a modified air circulator, With continuing attention to the drawing, the refer-ence numeral 1 indicates a room ceiling or roof structure defining the upper limit of a room area RA. A floor surface of the room area is indicated at F, Indicated generally at 2 is the present air circul-ating device shown suspended subjacent ceiling 1, A
support structure 3 is of dome-like configuration and constitutes a base for later described components. A
hanger at 4 may be of chain link construction provided at its apex with a hook 5 for convenient roof or ceiling attachment.
Within the support structure is a motor 6 and a fan 7 of a fan and motor assembly, Fasteners at 8 couple the motor to the interior surface of support structure 3. A
motor output shaft is indicated at 6A.
Mounting means is indicated at ~ and includes a ring which is concentrically disposed and in close proximity to fan 7. Securing mounting means 9 in place are spacers 10 extending intermediate the periphery of the mounting means and the interior support structure 3 with suitable fasteners as at 11 extending oppositely through the sup-port structure and said mounting means.
Receiving fan discharge is a multi-channelled, per-forate body 12 disclosed as a honeycomb structure with a multitude of air passageways 12A which serve to remove any horizontal component or swirling motion from said discharge and thereby effect a linear stream. Figure 2 shows the perforate body fixed within a collar 13 on an internal shoulder 13A with collar 13 being in inserted 6i~6 engagement with the ring of the Mounting means. Such an arrangement enables the removal of collar 13 and the per-forate body should it be desired to attach a pliable duct fitted at its upper end with a like collar, In inserted engagement with collar 13 but at the lower end of same is a nozzle or constrictor indicated at 14 with a conical segment and having an upper rim 14A for detachable attachment to collar 13. A constrictor or nozzle outlet end at 14B is approximately one-half the area of the inlet end as defined by rim 14A and functions to accelerate air discharged by the device, The presently disclo~ed air circulating device is effective to circulate air within rooms of standard ceiling height and those having somewhat greater floor-to-ceiling heights, Also, air may be circulated effect-ively $n most office buildings, With the present unit, no ob~tructions exist in the lower room area~to impede human or machine movement, Further" the room ' 9 decor, usefulness and appearance are not detracted from by the presence of a duct.
To increase the effective range of air circulator ouput, the circulator may include a second fan driving air through a second perforate body. Such an arrangement permits lower fan speed to reduce operational sound, In the modified form of the invention, in Figure 4, prime reference numerals indicate like parts similar to those above mentioned. A first fan is indicated at 16 in place on motor output shaft 6A~ which is extended to receive a second fan at 17,~ In place within mounting means at 18 li3~6~i6 are first and second perforate honeycomb structures at 20 and 21. A detachable nozzle or ConstriCtOr at 22 increases airstream velocity. mis last described form of the invention is intended for use in rooms exceeding normal floor-to-ceiling heights.
Solutions to the avoidance of temperature strati-fication have been attempted with devices having vertically disposed ducts which transfer fan driven air between upper and lower room areas. While this solution is practical in some instances, there are some instances when such a duct is objectionable as it may detract from room use and appearance.
m e present invention is embodied within an air circulating device including a fan and motor assembly for driving a column shaped flow of air for the purpose of mixing air of different temperatures within a closed area.
The present device utilizes a perforate body, such as a honeycomb structure, to directionalize the fan discharge by removing swirlins air currents to effectively provide a columnar airflow. Accordingly, an effective airflow may be discharged for a range of several feet, as between ceiling and floor, without utilization of a duct. A
1134fai~i6 nozzle or constrictor is provided downstxeam from the perforate structure to increase airflow velocity enhanc-ing the effectiveness of the airflow.
The present invention includes the provision of an air circulating device for use in enclosed areas for discharging a vertical airflow so as to mix room air, which normally has a tendency to thermally stratify while avoiding use of a duct thereby avoiding visual detraction from and interference with use of a room area.
The present invention is embodied within an air circulating device for use in an enclosed room area to prevent temperature stratification, said device compris-ing a support structure adapted for attachmçnt to a super-jacent support, a fan and motor assembly supported by said support structure with said fan on a motor output shaft, mounting means on said support structure past which fan discharged air moves, a perforate body carried by said mounting means and having multiple passageways constraining passing fan discharged air for formation of a linear stream of air, and a constrictor subjacent said perforate body and serving as a nozzle to constrict and accellerate the stream of air to enhance stream range and hence effect-iveness.
In the accompanying drawing:
Figure 1 is an elevational view of the device located intermediate the ceiling and floor of a room;
Figure 2 is an elevational view of the device with fragments broken away and parts removed along a centerline for purposes of illustration;
Figure 3 is a horizontal sectional view taken down-wardly along line 3-3 of Figure 2;
~13~1~ii,it~
Figure 4 is a view similar to Figure 2 but show$ng a modified air circulator, With continuing attention to the drawing, the refer-ence numeral 1 indicates a room ceiling or roof structure defining the upper limit of a room area RA. A floor surface of the room area is indicated at F, Indicated generally at 2 is the present air circul-ating device shown suspended subjacent ceiling 1, A
support structure 3 is of dome-like configuration and constitutes a base for later described components. A
hanger at 4 may be of chain link construction provided at its apex with a hook 5 for convenient roof or ceiling attachment.
Within the support structure is a motor 6 and a fan 7 of a fan and motor assembly, Fasteners at 8 couple the motor to the interior surface of support structure 3. A
motor output shaft is indicated at 6A.
Mounting means is indicated at ~ and includes a ring which is concentrically disposed and in close proximity to fan 7. Securing mounting means 9 in place are spacers 10 extending intermediate the periphery of the mounting means and the interior support structure 3 with suitable fasteners as at 11 extending oppositely through the sup-port structure and said mounting means.
Receiving fan discharge is a multi-channelled, per-forate body 12 disclosed as a honeycomb structure with a multitude of air passageways 12A which serve to remove any horizontal component or swirling motion from said discharge and thereby effect a linear stream. Figure 2 shows the perforate body fixed within a collar 13 on an internal shoulder 13A with collar 13 being in inserted 6i~6 engagement with the ring of the Mounting means. Such an arrangement enables the removal of collar 13 and the per-forate body should it be desired to attach a pliable duct fitted at its upper end with a like collar, In inserted engagement with collar 13 but at the lower end of same is a nozzle or constrictor indicated at 14 with a conical segment and having an upper rim 14A for detachable attachment to collar 13. A constrictor or nozzle outlet end at 14B is approximately one-half the area of the inlet end as defined by rim 14A and functions to accelerate air discharged by the device, The presently disclo~ed air circulating device is effective to circulate air within rooms of standard ceiling height and those having somewhat greater floor-to-ceiling heights, Also, air may be circulated effect-ively $n most office buildings, With the present unit, no ob~tructions exist in the lower room area~to impede human or machine movement, Further" the room ' 9 decor, usefulness and appearance are not detracted from by the presence of a duct.
To increase the effective range of air circulator ouput, the circulator may include a second fan driving air through a second perforate body. Such an arrangement permits lower fan speed to reduce operational sound, In the modified form of the invention, in Figure 4, prime reference numerals indicate like parts similar to those above mentioned. A first fan is indicated at 16 in place on motor output shaft 6A~ which is extended to receive a second fan at 17,~ In place within mounting means at 18 li3~6~i6 are first and second perforate honeycomb structures at 20 and 21. A detachable nozzle or ConstriCtOr at 22 increases airstream velocity. mis last described form of the invention is intended for use in rooms exceeding normal floor-to-ceiling heights.
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
An air circulating device for use in an enclosed room area to prevent temperature stratification, said device comprising, a support structure adapted for attachment to a superjacent support, a fan and motor assembly supported by said support structure with said fan on a motor output shaft, mounting means on said support structure past which fan discharged air moves, a perforate body carried by said mounting means and having multiple passageways constraining passing fan dis-charged air for formation of a linear stream of air, and a constrictor subjacent said perforate body and serv-ing as a nozzle to constrict and accelerate the stream of air to enhance stream range and hence effectiveness.
The device claimed in claim 1 additionally including a collar detachably mounted to the mounting means, said collar supporting said perforate body.
The device claimed in claim 1 additionally including a second fan on said motor output shaft below the first mentioned fan, a second perforate body below and receiving fan discharged air from said second fan, said constrictor subjacent said second perforate body.
The device claimed in claim 1 wherein said constrictor is of circular configuration and includes a conical segment.
The device claimed in claim 4 wherein said constrictor is generally of downwardly tapered shape having an inlet end and an outlet end, said outlet end having an area of approximately one-half the area of the inlet end.
The device claimed in claim 1 wherein said mounting means is of ring configuration, said perforate body is of circular configuration and disposed within a collar, said constrictor having an upper rim attached to said collar.
An air circulating device for use in an enclosed room area to prevent temperature stratification, said device comprising, a support structure adapted for attachment to a superjacent support, a fan and motor assembly supported by said support structure with said fan on a motor output shaft, mounting means on said support structure past which fan discharged air moves, a perforate body carried by said mounting means and having multiple passageways constraining passing fan dis-charged air for formation of a linear stream of air, and a constrictor subjacent said perforate body and serv-ing as a nozzle to constrict and accelerate the stream of air to enhance stream range and hence effectiveness.
The device claimed in claim 1 additionally including a collar detachably mounted to the mounting means, said collar supporting said perforate body.
The device claimed in claim 1 additionally including a second fan on said motor output shaft below the first mentioned fan, a second perforate body below and receiving fan discharged air from said second fan, said constrictor subjacent said second perforate body.
The device claimed in claim 1 wherein said constrictor is of circular configuration and includes a conical segment.
The device claimed in claim 4 wherein said constrictor is generally of downwardly tapered shape having an inlet end and an outlet end, said outlet end having an area of approximately one-half the area of the inlet end.
The device claimed in claim 1 wherein said mounting means is of ring configuration, said perforate body is of circular configuration and disposed within a collar, said constrictor having an upper rim attached to said collar.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3444879A | 1979-04-30 | 1979-04-30 | |
| US034,448 | 1996-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1134666A true CA1134666A (en) | 1982-11-02 |
Family
ID=21876483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000347085A Expired CA1134666A (en) | 1979-04-30 | 1980-03-05 | Air circulating device for mixing room air |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS55146345A (en) |
| CA (1) | CA1134666A (en) |
| DE (1) | DE3016562A1 (en) |
| GB (1) | GB2049161B (en) |
| ZA (1) | ZA793332B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564980A (en) * | 1995-02-09 | 1996-10-15 | Becker; Sydney J. | Room air quality conditioning system |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3153389C2 (en) * | 1981-01-23 | 1992-09-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
| DE3102206A1 (en) | 1981-01-23 | 1982-08-19 | Siemens AG, 1000 Berlin und 8000 München | Mounting head for mounting electronic components |
| DE3826588A1 (en) * | 1988-08-04 | 1990-02-08 | Schmitz Kuehler Baierbrunn | AIR COOLER |
| DE29504424U1 (en) * | 1995-03-15 | 1995-05-18 | GEA Happel Klimatechnik GmbH, 44625 Herne | Ceiling fan |
| GB2486889B (en) | 2010-12-23 | 2017-09-06 | Dyson Technology Ltd | A fan |
| GB2486891B (en) | 2010-12-23 | 2017-09-06 | Dyson Technology Ltd | A fan |
| GB2486892B (en) | 2010-12-23 | 2017-11-15 | Dyson Technology Ltd | A fan |
| GB2486890B (en) | 2010-12-23 | 2017-09-06 | Dyson Technology Ltd | A fan |
| GB2492963A (en) | 2011-07-15 | 2013-01-23 | Dyson Technology Ltd | Fan with scroll casing decreasing in cross-section |
| GB2492962A (en) | 2011-07-15 | 2013-01-23 | Dyson Technology Ltd | Fan with tangential inlet to casing passage |
| GB2492961A (en) | 2011-07-15 | 2013-01-23 | Dyson Technology Ltd | Fan with impeller and motor inside annular casing |
| JP1518059S (en) | 2014-01-09 | 2015-02-23 | ||
| JP1518058S (en) | 2014-01-09 | 2015-02-23 |
-
1979
- 1979-07-04 ZA ZA793332A patent/ZA793332B/en unknown
-
1980
- 1980-03-05 CA CA000347085A patent/CA1134666A/en not_active Expired
- 1980-03-31 GB GB8010767A patent/GB2049161B/en not_active Expired
- 1980-04-22 JP JP5409080A patent/JPS55146345A/en active Pending
- 1980-04-29 DE DE19803016562 patent/DE3016562A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564980A (en) * | 1995-02-09 | 1996-10-15 | Becker; Sydney J. | Room air quality conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA793332B (en) | 1981-02-25 |
| GB2049161B (en) | 1983-01-26 |
| DE3016562A1 (en) | 1980-11-13 |
| GB2049161A (en) | 1980-12-17 |
| JPS55146345A (en) | 1980-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |