Isuzu is developing low-pollution vehicles using alternative energy sources or hybrid systems to reduce emissions. Such vehicles are not only a vital step toward achieving lower emissions of pollutants, they will also contribute to the more effective utilization of limited resources.
Compressed Natural Gas (CNG) Vehicles
The CNG-powered engines emit very low NOx carbon monoxide (CO) and hydrocarbons (HC) and virtually no particulate matter (PM) at all. Another characteristic of natural gas, of which the main constituent gas is methane, is that it produces very little CO. Isuzu produces three-way catalytic converter-equipped CNG vehicles that achieve an excellent low-pollution emission performance.
CNG (Compressed Natural Gas) is available from the significant reserves of natural gas that exist in many places around the world. Unlike in the case of petroleum, the bulk of supplies are not concentrated in the Middle East and reserves of natural gas are considered to be much larger than those of petroleum. Accordingly, this fuel has an important role in maintaining a stable supply of energy.
ELF CNG-MPI (Multi Point Injection)
[Advantages]Zero PM emission
Low NOx emission
Very low CO emission
[Disadvantages]Short running distance
Heavy fuel container
Dimethyl Ethel Engine (DME) Vehicles
|With various advantages, The DME engine is getting wide recognition as a next generation, alternative-fuel powerplant. DME emits no black smoke and very little PM and Nox.|
Dimethyl Ether is made from charcoal and natural gas. It is very stable fuel which can be liquified under normal temperatures at low atmosperic pressure. Easy transportation and storage is also its advantage.
Diesel Hybrid Vehicles
|Hybrid vehicles are designed to realize low pollution and energy saving by dual power sources. Isuzu's Elf diesel hybrid achieves low-CO emission levels and high fuel efficiency by fully extracting energy available when the vehicle decelerates. It uses diesel for fuel, needs no special infrastructure, and can be serviced anywhere. In addition, the Elf Diesel hybrid truck employs Isuzu's original hybrid system, which was optimized for light-duty trucks. The system achieves excellent fuel economy compared to other hybrid vehicles, and delivers the high durability and safety performance required by commercial vehicles at the same time.|
The Elf diesel hybrid truck has the following features:
ELF Diesel Hybrid
Fuel Cell Vehicles
|Fuel cell vehicles are highly advanced low-pollution vehicles that generate electricity through a chemical reaction between hydrogen and oxygen and use this electricity to drive a motor. R&D is currently proceeding into a system for storing hydrogen in a special alloy and a system utilizing methanol. Fuel cells are highly fuel-efficient, so they are considered as the next-generation of vehicle powerplants.|
When water is electrolyzed it is split into hydrogen and oxygen. The principle of the fuel cell is based on the reversal of this reaction.