2010 Sustainability Report - Cummins.com

Technology for fuel efficiency
Technology innovations that deliver greater
fuel economy for our customers also mean CO 2
reduction. Cummins first demonstrated a hybrid
system in 1995 and continues to be the world’s
number one supplier of diesel engines to the
commercial diesel hybrid market.
A hybrid vehicle, moved by two or more distinct
power sources, uses less fuel than one with a
traditional powertrain and therefore emits less
CO 2
. As commercial hybrids progress and
advanced technologies from Cummins are
introduced, the degree of system integration
will become more important.
Further engine optimization for hybrid
powertrains will result in new levels of fuel
efficiency driven by design considerations
and integrated engine features. Engineoptimized
hybrid systems are estimated to
achieve a 40 to 50 percent fuel consumption
reduction over conventional powertrains.
Meanwhile, the engine component of Cummins
SuperTruck program, a program to improve fuel
efficiency, reduce waste energy and cut emissions,
uses waste heat recovery to get more mileage
out of the fuel. The concept is to direct waste
heat back to the engine via a small steam
turbine, 1-1/2 inches in diameter.
This technology, funded in part by the Department
of Energy, will help Cummins customers achieve
greater fuel economy in light of rising fuel prices.
Cummins Westport natural gas engines, available
as a factory option from over 50 truck and bus
manufacturers worldwide, can operate on
compressed (CNG) or liquid (LNG) natural gas
and on zero-carbon biomethane, a renewable fuel
made from biogas or landfill gas.
Outside the United States
Cummins meets or exceeds emission regulations
in every country where it operates. In Taiwan, for
example, emissions regulations require EPA 2004
or Euro IV standards, and Cummins sells both types
of certified engines. In Mexico, emission regulations
recently enacted require EPA 2004 certified engines.
Cummins has been very active in the latest rulemaking
and has been selling EPA 2004 certified engines years
prior to the latest requirements.
Cummins has worked closely with the Chinese
government and Original Equipment Manufacturers
(OEMs) to introduce “green engines” to China.
Cummins is committed to bringing in advanced,
low-emission, fuel efficient and environmentally
friendly products to Chinese customers concurrently
with international markets, including the United States
and Europe.
In late 2009, Cummins’ joint ventures in China –
Dongfeng Cummins and Xi’an Cummins – introduced
Euro IV diesel engines in advance of the Chinese
government’s requirements for production in 2011.
Also in 2009, Cummins’ Wuhan Technical Center
began projects with all of our joint ventures in China
to develop clean diesel engines to meet the stringent
Euro V emission standards worldwide in addition to
local production of Euro IV engines.
In 2010, Cummins’ latest joint venture with Beijing
Foton began production of the all new ISF2.8 and
ISF3.8 Euro IV engines in Beijing. Cummins is the first
foreign diesel maker to invest in the local manufacturing
of key sub-systems, including turbochargers, filtration
products, fuel systems and after-treatment products.
24 Cummins Inc. Sustainability Report 2010