Hussmann Ingersoll Rand User Manual page 219

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2
3
4
Figure 2: IR Impact
Compared to commonly used splash lubrication, the new system has advantages with respect to
its highly dynamic response characteristics: After starting, the oil flow is immediately present
and maintained over the entire operating range.
Oil carry over (% of mass flow)
(Compressor IR4C0969, R404A, 40/120°F)
1.4
1.2
1.0
(%)
0.8
0.6
0.4
0.2
0
Figure 3: Oil carry-over of different lubrication systems with identical compressors
Mechanical Design
compressor IR4C2397S with Enhanced Centrifugal Lubrication
10 15
Suction Superheat (F)
Pump
Centrifuge
25
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