Blower Repair & Maintenance Manual #34-05198-6 v1.2 11.2014
7
SPECIAL FEATURES OF WALINGA BLOWERS
OPERATION
Refer to Figure 1. Rotary positive displacement design
incorporates the use of two figure eight impellers which
rotate in opposite directions to deliver a metered volume
of air. The impellers are separated by minute clearances
which are designed into the unit. These clearances are
maintained by timing gears.
CONSTRUCTION
Walinga blowers are ruggedly built for long life. Impellers
are dynamically balanced to operate without vibration.
Large alloy steel shafts are ground and polished.
Bearings are heavy duty anti-friction type which enable
the blower to maintain its original factory clearances.
Bearings are protected from dirt and contamination by oil
seals. Precision, steel, helical gears are oil lubricated by
a completely self-contained splash system which
atomizes the oil. Breathers are provided to prevent the
air from being contaminated by the blower lubricant.
TYPES OF DRIVE
Direct
: Locked bearings on both impeller shafts enable
the blowers to be direct connected. The entire line is
also available with flange adaptors and couplings for
direct connection to internal combustion engines as used
on WALINGA Trailers and Transfer Units. (See Figure
2). In addition, WALINGA blowers are available as
power take off (PTO) units with gear heads in a selection
of ratios to approximately 2.25:1.
V-belt
: Walinga blowers can be V-belt driven to permit
changes of speed to accommodate variations in
operation requirements. (See Figure 3)
Fig. 1
Fig. 3
Fig. 2