ISUZU:Tokyo Motor Show 2002

Tokyo Motor Show 2002


	Concept

	Environmental Efforts

	ELF-KR

	Environmental Preservation

	Smoother

	The MIMAMORIKUN System

	Bus Series

	Multipurpose Vehicles

	Diesel Engine

	Booth Layout

Isuzu has been devotedly developing light-duty trucks incorporating a hybrid system utilizing a reliable diesel engine as well as vehicles fueled by DME (dimethyl ether), a substitute for diesel oil. Significant progress has also been made in CNG and LPG vehicles, which are optimal for short-distance transportation. Moreover, post-combustion treatment technology is improving rapidly as part of Isuzu's efforts to put its clean diesel expertise to practical use.

Clean, powerful and quiet, the ELF CNG light-duty truck is equipped with an electromagnet retarder. Engine braking force is equivalent to that of diesel vehicles, and reduces driver's fatigue. As a specialist in short-distance transport, the ELF CNG holds the largest share* in the CNG truck segment. and is widely used for urban deliveries.

*72% share of CNG vehicle segment in 2001 (domestic registration of ELF-class cabover type, internal data)

[Specifications]

Dimensions (mm): Length 4955 x Width 1890 x Height 2950 (chassis)

4HF1-CNG truck

[Features]

4-cylinder OHC, non-contact electronic ignition control system
[Specifications]

4334cc

88kW (120PS)

Isuzu's parallel hybrid system relies on either the diesel engine or electric motor depending on driving circumstances and power demands. By adopting one motor and two clutches, which is the best combination for commercial vehicles, the ELF HEV can use only the electric motor for quiet operation in residential areas. The diesel hybrid system enables this vehicle running without pollution and noise.

ELF HEV (hybrid electric vehicle) (Reference exhibition)

A low-emission, next-generation engine utilizing dimethyl ether, the DME engine is getting wide recognition as an alternative-fuel powerplant. Based on the 6HH1 diesel, this engine emits no black smoke and very little PM and NOx.

Continuously Regenerating diesel particulate Filter

The continuously regenerating type DPF (Diesel Particulate Filter) is a system that converts the nitrogen monoxide (NO) in the exhaust gas into nitrogen dioxide(NO

), which can then be well oxidized in an oxidizing catalytic converter, and burns the PM trapped on the filter. This system doesn't require an energy source to support PM burn. For practical use, the sulfur contained in the fuel must be significantly reduced.
Source:Johnson Matthey

Continuously Regenerating diesel particulate Filter

NOx Catalyst

This is a catalytic device designed to convert NOx generated by the diesel engine into harmless nitrogen, water and CO

. Isuzu is currently researching deoxidizing type NOx catalysts that use diesel fuel. The type using diesel as the reduction agent realizes even more efficient NOx purification by utilizing a high-density carrier, which radically reforms the contact surface between the exhaust gas and the reduction agent. Before this catalyst can be employed for practical use, however, we need to find effective ways of reducing the high oxygen concentration of the exhaust gas and the sulfur component
of the diesel fuel.

Continuously Regenerating diesel particulate Filter+ Urea-Selective Catalytic Reduction System

By combining the performance of a continuously regenerating DPF with the high purification rate of a NOx catalyst using urea as agent, this after-treatment technology is on the cutting edge of environmental technologies. The DPF drastically reduces PM, while NOx is effectively removed through chemical reaction with ammonia, which is contained in the urea solution the system injects into exhaust emissions.