ELF-KR Tokyo Motor Show 2002

A next-generation environmental truck providing long service life and confidence:The ELF-KR is a fusion of key technologies.

Nitrogen oxides (NOx) are more easily generated under conditions of high temperature and complete combustion, while particulate matter (PM) and black smoke is produced when combustion occurs at lower temperatures. In order to simultaneously reduce these substances, Isuzu applied our cutting-edge technologies generously. For the first time in light-duty trucks, a common-rail super high-pressure fuel injection system offers optimal combustion and a PM catalytic converter (oxidization catalyst) provides post-combustion treatment of exhaust emissions. Moreover, electronic control technology gives feedback and precise management. The ELF-KR was born through integration of these three key technologies.


Smoke and NOx: The common-rail super high-pressure fuel injection system For reduction of PM, black smoke and NOx:
The common-rail super high-pressure fuel injection system.
Fuel injection at super high pressure is achieved by adopting a common-rail pressure accumulator before the injectors. With fuel injection at 160MPa, combustion is optimized. This improves combustion efficiency and reduces emissions of PM and black smoke. Fuel is injected on the compression stroke in diesel engines and the injection used to occur only once per cycle, but now an electronic control system enables pilot injection in one-1000th of a second for precise control of the fuel amount. This contributes to better combustion and a reduction in NOx emissions.


Emissions: The cooled EGR system For reduction of NOx emissions:
The cooled EGR system.
Nitrogen oxides are reduced by lowering the combustion temperature by mixing exhaust gases into intake air. Cooled EGR(exhaust gas recirculation) technology incorporates a water-cooled "cooler" in the middle of the system to lower the temperature of hot exhaust gases through mixture with air entering the engine. This results in a combustion temperature even lower than that of regular EGR and further reduces NOx emissions.


The PM catalytic converter (oxidization catalyst) For reduction of PM:
The PM catalytic converter (oxidization catalyst).
Utilization of an oxidization catalyst turns the non-combusted hydrocarbons in the SOF (soluble organic fraction) of particulate matter from diesel fuel and lublicant into water and carbon dioxide, making it possible to significantly reduce particulate matter.


16 valves, four per cylinder For reduction of PM and black smoke:
16 valves, four per cylinder.
Each cylinder has four valves - two for intake and two for exhaust. This 16-valve engine design increases air intake and exhaust gas to optimize cylinder capability for improved overall efficiency. By establishing the conditions for better combustion, PM and black smoke can be reduced and fuel economy boosted.

*PM (particulate matter), NOx (nitrogen oxides), HC (hydrocarbons)

ELF-KR Dry Van
[Specifications]
Dimensions (mm): Length 4995 x Width 1890 x Height 2795
4HL1 diesel truck
*The figures in this pamphlet are shown both in international and domestic standards.
ELF-KR Dry Van Realizing the next stage of
environmental performance:
The ELF-KR Dry Van
supports you now and in the future.
Commercial vehicles carry the goods we depend on in daily life and connect our societies where Isuzu is comitted to a high degree of environmental responsibility. The ELF-KR is the first light-duty truck to adopt a common-rail system of super high-pressure fuel injection as high as 160Mpa as well as a PM catalytic converter (oxidizing catalyst). It also incorporates an integrated control system and already meets 2003 emission regulations. The ELF-KR provides confidence to the user as it is designed to work for long years tocome.


ELF-KR
The "KR" symbol is given only to vehicles that meet the coming environmental standards in Japan.You can choose KR-designated trucks with complete confidence.
4HL1diesel
Meeting new Japanese short-term (2003) emission regulations.
4HL1diesel
[Features]
OHC 16 valves
Electronic control common-rail super high-pressure fuel injection system
[Specifications]
4777cc
103kW (140PS) First in Japan to meet the new short-term (2003) emission regulations