The Toyota D-4D 180 Clean Power concept car showcases Toyota’s further advances in diesel engine technology, achieving substantial improvements in both performance and exhaust emissions. The engine will be developed from the concept stage into a production unit which will be launched in 2005, within the 1.9 to 2.2-litre category.
The D-4D 180 power plant is set to create a new benchmark in its class in terms of power and torque. Fitted to the Clean Power concept car, it delivers the world’s lowest combined level of nitrogen oxides (NOx) and particulate matter (PM) emissions for a diesel engine, respectively 50 and 80 per cent below Euro IV standards.
Its ground-breaking qualities are achieved through the use of the Toyota D-CAT system (Diesel Clean Advanced Technology), which has already been used to great effect in the 2.0-litre D-CAT engine for the Toyota Avensis. Central to the D-CAT’s performance are the DPNR (Diesel Particulate NOx Reduction) four-way catalyst and advanced second generation common rail injection system. These combine with other control systems and components to provide the most effective solution yet to reduce diesel engine emissions.
The new D-4D engine produces in the region of 183bhp (130kW) and 400Nm of torque, performance that is significantly higher than that offered by other units in its category and matched only by higher displacement V6 diesel engines.Published 4 September 2004