ALTROZ SERVICE MANUAL

259 / 1119

1.5L REVOTORQ ENGINE
71
COMPONENTS
A. Exhaust Manifold
The exhaust manifold is mounted on the cylinder
head. The exhaust gases are trapped out from the
engine through the exhaust manifold.
B. Turbocharger (VGT)
CONSTRUCTION AND FUNCTION
VGT limits exhaust gas inflow to less than its maxi-
mum capacity to prevent overload in advance.
Because this technology provides an engine with
high durability and better economic efficiency, it stll
remains a market leading product. The pressure of
the exhaust gas dramatically increases at high
speeds, and may cause damage to the turbo-
charger. VGT by-passes overloaded exhaust gas
using the waste gate to prevent this potential prob-
lem A waste gate is that diverts
away from th wheel in engine
system.
ADVANTAGES / FEATURES
 Good low end torque.
 Good transient response.
 Good fuel economy.
 Increased useful engine operating range.
 It provides more matching level of pressure
boost even to a slow spinning turbine without
providing too much of a boost at higher speed.
 Low engine noise.
 Lower emission.
C. LNT+CDPF
The LNT+CDPF is a critical element of the system
used to reduce vehicle exhaust emissions. The
catalytically active element within the converter
lowers the activation energy needed to selectively
transform harmful combustion products into less
harmful gases. The catalyst becomes active when it
reaches a threshold temperature.
LNT+CDPF is physically positioned very close to
the engine exhaust ports to enable quicker light-off.
It also enables flushing out of the carbon particles
present in the Catalytic Converter.
Benefits
• Positioned close to the engine exhaust ports for
fast light-off and reduced cold start emissions.
• Robust construction offers excellent durability.
• Internally insulated construction design enables
improved durability, reduced heat rejection and
lower noise.