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GEN
INFO
Supercharger assembly
The supercharger is equipped with a gear-driven impeller that compresses the intake air. The impel-
ler uses a step-up gear with 2 steps to transmit the rotation of the crankshaft. The impeller rotates
about 10 times faster than the crankshaft. The impeller drive gear is equipped with a one-way
clutch; therefore, even if the engine stops when the impeller is rotating at high speed, the structure
of the impeller allows it alone to continue rotating.
1
2
EXAMPLE:
Turbine r/min
Trolling speed: 9.86 × 1,250 = 12,325 r/min
1 Impeller
2 Gear
Air cooler assembly
The air cooler assembly uses cooling water to cool the intake air that has been compressed in the
supercharger.
1 Air cooler assembly
2 Supercharger assembly
Feature and benefit
DRIVEN GEAR
>>>Number of teeth:
IDLE GEAR
>>>Number of teeth
BIG:
SMALL:
DRIVE GEAR ASSEMBLY
>>>Number of teeth:
= (60/19) × (50/16) × Engine r/min
= 3.16 × 3.12 × Engine r/min
= 9.86 × Engine r/min
É
16
50
19
60
3
3 One-way clutch
È Compressed air
É Cooled air
1-21
È
1
2
E
2
3
4
5
6
7
8
9
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