Cummins adopts a lighter approach
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Cummins will use the forthcoming IAA Commercial Vehicle exhibition in Hannover in September to take the wraps off a new family of turbochargers for van engines. CM has all the details.
Words; Andy Satter
Cummins Turbo Technologies
(CTT), better known for the development of heavy duty engine turbochargers, under the auspices of the HoNet brand, is launching a new turbo specifically aimed at the 2.0-litre to 5.0-litre lightweight engines employed in LCV As well as a power boost, the new turbos will deliver improved engine braking and better diesel particulate filter regeneration, both of which will bring maintenance benefits
err pioneered the use of sliding side-wall technology with its first generation of variable geometry turbochargers (VGT), launched with the Iveco Cursor 8 engine in 1998, and the new HE200 lightweight turbo employs the same system to ensure the small power units benefit iron a similar punch in performance. "Our field and customer feedback indicates that the current range of variable geometry turbochargers offered by others in the market
do not meet the market requirements for high levels of durability." said Dave Green, Cummins engineering director for the HE200."This has driven our developments in this area. We have been offering light duty wastegate turbos for 14 years and it was an obvious progression to bring our VCIT technology into this space."
The company is tight-lipped about who will he the first customer to take the new turbo, although it has confirmed production will commence in the second half of next year. indicating an announcement is in the wings.
Engine braking While the new range of turbochargers has been developed in response to the increasing focus on fuel economy and engine downsizing of CTT's customers, the variable geometry turbo brings with it the benefit of engine braking, which has previously been of marginal benefit at this swept volume class C1-1 reckons, thanks to the turbo design, up to 50% of the fired power of the engine can be generated in engine braking. For a 130hp van, that will equate to a significant level of retardation. which should impact on brake life and, as a result, service intervals in addition, the turbocharger can be used to raise the temperature significantly in the exhaust system at any engine speed, thereby regenerating the diesel particulate filter without the need for additional dosing systems. As well as the variable geometry version of the new 1-1E200. CTT will also offer a regular wastegate version of the unit where the focus is on a cost-effective solution to reliability and durability.•