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Compressors / compressed air - Aircraft

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AIRCRAFT PREMIUM - This is what you ought to know!<br />

Energy saving by revolutionary technique<br />

Force impacts in the AIRCRAFT Rotal technique<br />

· The rotating drive is converted via a patented innovative<br />

planet drive in a linear movement (F1=F2).<br />

· Laterally resulting forces F3 which effect an increased wear are<br />

completely used for sealing.<br />

your advantages when using the Rotal technique:<br />

· Considerably less wear<br />

· Up to 50% lower maintenance cost<br />

· Up to 25% higher performance is obtained resp.<br />

up to 25% less drive energy is required<br />

F1=F2<br />

F1 = F2 = 100%<br />

Targeted lubrication of trouble spots<br />

The patented solution for the Rotal technique:<br />

· Forced lubrication at a trouble spot of the PREMIUM<br />

compressor<br />

your advantage:<br />

· Also in extreme sloping positions an optimum lubrication is<br />

being guaranteed<br />

· Little oil quantities in the <strong>compressed</strong> <strong>air</strong><br />

patented<br />

Force effects at traditional piston drive<br />

F1<br />

F2<br />

F3<br />

Energy spent<br />

· The force which has to be used in order to<br />

move the piston<br />

Effective power<br />

· Really usable force which moves the piston in the direction<br />

to which it shall be moved<br />

Power loss<br />

· Resulting of the power spent<br />

· It presses the piston against the cylinder wall and thus<br />

increases the friction and the wear<br />

F2<br />

F3 F1<br />

F1<br />

F3 = 25%<br />

· The lubrication of lots of conventional piston compressors is performed by means of a submersible needle<br />

· This needle whirls the oil upward and thus dampens the interior of the crank housing and the cylinder wall<br />

· Thus the compressor causes a relative large amount of oil in the <strong>compressed</strong> <strong>air</strong> due to the construction of the compressor<br />

· Also in case of continuous use oil is escaping at the aeration of the crank housing due to an important oil fog formation in the crank housing<br />

patented<br />

F2 = 75 %<br />

For conventional lubrication:<br />

· The oil level is extremely important for<br />

conventional oil lubrication<br />

· Too little oil: The submersible needle does not attain the<br />

oil surface = dry running<br />

· Too much oil: The big end and the gyrating mass strike the oil<br />

surface at high speed at every rotation = great stress, increased<br />

wear of the big end bearings and of the crank shaft bearing<br />

· If the compressor is installed inclined as did often cannot be<br />

avoided when using it at construction sites it may happen that the<br />

oil sump is no longer attained by the submersible needle = dry<br />

running.<br />

Oil level too high Inclined position of the<br />

compressor<br />

67<br />

Piston compressors

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