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Energy efficient ips blower assembly

Inactive Publication Date: 2012-03-15
HAMILTON SUNDSTRAND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such blowers typically require power from the helicopter engines to run.

Method used

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  • Energy efficient ips blower assembly
  • Energy efficient ips blower assembly
  • Energy efficient ips blower assembly

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0014]Referring now to FIG. 1, a clutch mechanism 20 is shown. The clutch mechanism, which is driven by an engine gear box (not shown) that rotates shaft 22, comprises; hydraulic fluid 60, which may be fuel or other liquid, a piston 65 driven by the fluid impelled by a pump (or a solenoid operated pressure signal) 67, a pivotable rod 70 pushed by the piston about pivot 72, a rotating throwout bearing 75 pushed by the rod 70, a plurality of rotating legs 80 pushed by the throwout bearing 75, a rotating clutch plate 85 pushed by the legs 80 and a fly-wheel 90 that engages the rotating clutch plate 85. The fly-wheel 90 is fixedly attached to impeller shaft 50, and contact with the rotating clutch plate thereby causes the fan blades 45 to turn due to the now rotating impeller shaft 50 and draw the not-so-clean air through the housing 30 to ambient 32.

[0015]Spring 95 acts to pull the legs 80 and clutch plate 85 away from the fly-wheel if hydraulic pressure is removed from the piston 65. ...

second embodiment

[0016]Referring now to FIG. 2, a clutch mechanism 120 is shown. The clutch mechanism 120 which is driven by an engine gear box (not shown) that rotates shaft 122, comprises; an electric ram 130, a pivot arm 170 driven by the electric ram, a rotating throwout bearing 175 pushed by the rod 170, a diaphragm spring 135 flexed by the throwout bearing, a rotating pressure plate 140 pushed by the diaphragm spring 135, and a rotating clutch plate 185 that is pushed by the pressure plate 140 into contact with a fly-wheel 190. The fly-wheel 190 is fixedly attached to impeller shaft 50 and contact with the rotating clutch plate 185 causes the fan blades 45 to turn due to the now rotating impeller shaft 50 and draw the not-so-clean air through the housing 30 to ambient 32.

[0017]Diaphragm spring 135 acts to pull the pressure plate 140 away from clutch plate 185 to disengage the clutch mechanism from the fly-wheel 190 if the electric ram does not urge the pivot arm 170 against throwout bearing 17...

third embodiment

[0018]Referring now to FIG. 3, a clutch mechanism 220 is shown. The clutch mechanism, which is driven by an engine gear box (not shown) that rotates shaft 222, comprises; an electric motor 225, a throwout bearing 275 driven axially along ramp or ball race or the like 221 (shown schematically) by the electric motor, a plurality of rotating legs 280 pushed by the throwout bearing 275, a rotating clutch plate 285 pushed by the legs 280 and a fly-wheel 290 that engages the rotating clutch plate. The fly-wheel 290 is fixedly attached to impeller shaft 50, and contact with the rotating clutch plate 285 thereby causes the fan blades 45 to turn due to the now rotating impeller shaft 50 and draw the not-so-clean air through the housing 30 to ambient 32.

[0019]Spring 295 acts to pull the legs 280 and clutch plate 285 away from the fly-wheel 290 if the electric motor 225 is turned off. Controller 30 acts to actuate and deactuate electric motor 225.

[0020]Actuation of the electric motor 225, pump...

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Abstract

According to the invention a method and apparatus relating to a blower that is used in an environment of particle contaminated air, as with a helicopter engine, is disclosed. The blower has a power input, a fan, a power output attaching to the fan, and a clutch disposed between the power input and the power output whereby the power input may be selectively coupled to the power output to move the fan to vent the particle contaminated air. The clutch, which may be electrically, mechanically or hydraulically engaged, is activated by a user, a particle or altitude sensor, or by a full authority digital electronic controller (“FADEC”).

Description

FIELD OF THE INVENTION[0001]This invention generally relates to blowers and, particularly, to a blower for use particularly in environments of particle contaminated air.BACKGROUND OF THE INVENTION[0002]Impeller-type air pumps or blowers are used in many environments and applications. Such a blower conventionally includes a housing defining a pumping chamber or cavity within which an impeller assembly is rotated. The impeller assembly is mounted on shaft that is rotatably journaled within the housing and includes radially projecting blades for drawing air into an inlet of the housing and out through an outlet.[0003]Blowers are typically used in conjunction with inlet particle separators (“IPS”) in environments of particle contamination. For instance, in aircraft applications, such as with a helicopter, the vehicle may be used over sandy areas, such as deserts. Many known types of IPS are used to minimize engine intake of particle contaminated air to minimize adversely effects in perf...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01D15/12
CPCF02C7/32F05D2220/329F02C7/36
Inventor VEILLEUX, JR., LEO J.
Owner HAMILTON SUNDSTRAND CORP
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