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Turbo Lag Elimination System From Volvo — PowerPulse
Turbo lag elimination? Learn how Volvo eliminates turbo lag. More about Volvo PowerPulse here.
When it comes to Turbocharged engines, there is that one thing that comes associated with it, just like bread and butter - Turbo lag.
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You might have experienced a short delay in power delivery when you floor a turbo car (predominantly a diesel) hard. This is the reason why some automotive enthusiasts prefer a Naturally Aspirated engine over a turbocharged engine.
Volvo has something called ‘PowerPulse' to prevent a turbo lag. The patented system is present in Volvo's D5 Diesel engine having two sequential turbos. It employs compressed air to spool (process of unloading the air from a turbo at high pressure) the turbo within no time.
The system uses an electric compressor which sucks in clean air from the filter duct (intake system), and compresses and stores it in a pressurised container.
When the throttle is wide open (accelerator is fully depressed), the container opens via a valve mechanism and the compressed air is forced into the exhaust manifold. The air is then transferred into the cylinder just like any turbo (turbocharger pushes exhaust gases into the cylinder to supply more air for combustion).
A sequential turbo system is used here i.e the compressed air first rotates a smaller turbo (using clean air) and that in turn spins a larger turbo (using exhaust gases), ultimately supplying extra air for combustion into the cylinder.
A sequential turbo system is used here i.e the compressed air first rotates a smaller turbo (using clean air) and that in turn spins a larger turbo (using exhaust gases), ultimately supplying extra air for combustion into the cylinder.
DriveSpark
Thinks!
Volvo
Cars
have
got
quite
a
good
portfolio
at
being
masters
of
automotive
innovation.
They
have
confirmed
that
all
of
their
products
will
be
electrified
in
some
way,
by
2019.
The
‘PowerPulse' system
wouldn't
seem
that
complicated
if
you
know
some
technical
aspects
about
cars.
But
still,
it
was
Volvo
who
first
did
it
a
few
years
back.
