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Clean-up time for two-stroke
Two-stroke
engines have always been popular. Their simplicity, size and power-to-weight
ratio making them ideal for both small vehicle and agricultural
applications. But they have long had a reputation as polluters -
in terms of both noise and exhaust emission. Today, however, two-stroke's
poor reputation is rapidly being eroded, as manufacturers respond
to the need for environmental cleanliness with both new engine technologies
and exhaust after-treatment. Is the smoky old two-stroke cleaning
up its act? Insight takes a look at some of the recently emerging
technologies.
September specifications
September 1 1999 saw the latest ACEA specification for heavy duty
diesel engines - E5. The main driving force for E5 has come from OEM
requests for an oil quality upgrade to support longer drain intervals
- but one which doesn't necessitate a move toward fully non-conventional
basestocks. So among ACEA's aims for the specification was that it
shouldn't be necessary to use either a fully synthetic lubricant or
a significant quantity of non-conventional basestock to meet the test
requirements. This feature lists a brief review of the changes and
updates.
Onward and upwards
The European crankcase lubricants industry is affected by pressures
from many quarters, and today, among the foremost are environmental
considerations; the result, an increasing need to reduce emission,
achieve better fuel economy, reduce lubricant volatility and extend
drain intervals. This in turn forms one of the major driving forces
dictating the industry's trends, both now and for the foreseeable
future. Henrik Holmqvist, Vice President of Base Oils at Finland's
Fortum Oy, formerly known as Neste Oy, gives his view of today's industry
trends.
A different breed of cat

One of the major stumbling blocks in developing particulate filters
suitable for on-vehicle use is the difficulty of avoiding filter clogging
and purging filters of accumulated material. But now a new approach
is being proposed by a number of developers - using plasma to enhance
the performance of emission control catalysts.
Alessandro Piccone on Fiat's hundred years of engine design
This year, Fiat celebrate their centenary - a hundred years of automotive
evolution. Or is that revolution? Accommodating the century's changes
has been one of Fiat's greatest strengths. "Today you must have
a car to survive. This has changed a lot over the years, so we have
to change our approach on the design of the car," says Alessandro
Piccone, Fiat's Director of Product Engineering and Powertrain Engineering.
Lesley Welbourne finds out more.
Asia Pacific - Bigger, better faster more
The Chinese Automotive industry is among the most rapidly growing
in the world, keeping pace with the country's increasing GDP. Throughout
the 1990s, there have been dramatic increases in production across
all vehicle sectors, plus significant upgrades in vehicle technology,
not to mention new and more stringent emissions regulations which
will eventually bring China into line with European standards. Yang
Dao Sheng reports.
The Americas - New specifications - A cost reward dilemma for additive
companies
In October the Independent Lubricant Manufacturers Association (ILMA)
sponsored a session titled "New Engine Specifications - Who pays?"
Dave Corson, Vice President of Sales, spoke on behalf of Infineum,
focusing on who pays, who benefits? Although the topic was specific
to US specification development, in reality the same underlying dilemma
is relevant globally, Corson says.
Six thousand years of transport history - A special edition
pull out poster to mark the beginning of a new millennium
Take a look into the annals of history and some surprises lurk there.
Given that tribology wasn't studied quantitatively until the 1400s,
it's not unreasonable to suppose that lubricants also hail from
this millennium. But no, we find that the ancient Egyptians were
using a (primitive) variant 4000 years ago. And who would have thought
that the first vehicle on-board computer was pioneered in 1928?
So where might out transport technologies lead in the future?
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