SSANGYONG RODIUS 2005.07 Manual page 128

2. RESONANCE FLAP
1) Function
A pneumatically actuated resonance flap (5)
is located on the intake manifold, and will be
opened and closed by load, which operates
resonance flap according to engine and
controlled by ECU and rpm.
▶ Resonance flap closed (at idle/partial
load: less than 3,800 rpm)
The switch valve (7) will be adjusted by
ECU and resonance falp will be colosed.
By increasing air flow passage through
dividing intaking air flow toward both air
collection housing (8).
This leads to a signficant increase in the
torque in the lower speed range.
▶ Resonance flap open (at full load:
over 3,800 rpm)
The switch valve (7) will not be adjusted
by ECU and resonance falp (5) will be
open. The collected air in the air
collection housing (8) will not be divided
and intaking air passage will be shorten.
ENGINE INTAKE SYSTEM
04-5
1715-01
RODIUS 2005.07