Brazil, Rio de Janeiro
The heavy-duty dual-fuel sector looks set to change with auto parts giant Robert Bosch making a serious entrance into the market here in Rio this week. After a low-key two year development period, using technology originally developed by DieselGas in New Zealand, Bosch has released an aftermarket conversion kit, promising diesel substitution rates of up to 90%. Conditions in Brazil are ideal both for the development and release of the kit, says Robson Carlos Marzochi, the local marketing manager for Bosch. “Natural gas for vehicles is well understood already, and the economics are favorable for fleet operators to convert,” he told NGV2008 in Rio.
18-Month Payback Seen
Depending on duty cycles, Marzochi estimates that the Bosch kit, fully
fitted with four CNG cylinders for around R$30,000 (approximately
$18,000 U.S.), has a payback period of around 18 months for a typical
bus or truck fleet operator.
Engine families compatible with the system currently include VW MWM and
Mercedes-Benz OM series engines with more expected to be added in the
near future.
Development engineer Martha Mello Canelada said a dedicated development
team of up to 30 engineers has worked on perfecting the system over the
past two years. As well as producing expected economic benefits, the
system also delivers air quality benefits, reducing particulates by
75%.
Brazil is just the beginning for Bosch in the dual-fuel market, with
development work already under way in Asia and other markets. Initially
focusing on Euro II mechanical engines, the company also has its eyes
set on electronic and lower emission engines.
PDF 
