~ Up to 10% Improvement in Power and Torque over Diesel; Targeted at
Medium-Duty Truck Applications ~
VANCOUVER, Sept. 23, 2014 /CNW/ - Westport Innovations Inc. (TSX:WPT)
(NASDAQ: WPRT), engineering the world's most advanced natural gas
engines and vehicles, today is unveiling its newest proprietary
technology, the first generation of enhanced spark-ignited (ESI)
natural gas system. Westport's new revolutionary approach to natural
gas combustion technology is designed to provide vehicle and engine
original manufacturers (OEMs) with a "downsized" natural gas solution
that is cost competitive while providing similar levels of power,
torque, and fuel economy to a larger diesel engine. Using 100%
dedicated natural gas as fuel, Westport's new technology optimizes the
combustion and thermal efficiencies of the engine by taking advantages
of the positive properties of natural gas.
Developed to meet the highest level of OEM quality standards, Westport's
new combustion system and components have been undergoing testing and
offer ready integration into OEM applications globally. Its durability
and reliability levels are expected to meet an OEM's extensive engine
development program. The Westport™ ESI combustion system is targeted at
sub 9L engines for Class 6 and 7 trucks applications and is also
adaptable for sub 2L applications for use in automotive and
"As gasoline and diesel engines progress, it is critical that OEMs offer
natural gas engines that retain their expected performance while
providing the environmental and economic benefits of natural gas," said
Jack Keaton, Westport VP of Global Spark Ignited Direct Injection.
"Westport is taking its technology leadership to the next level by
introducing a long term technology solution that allows improvements in
engine performance and fuel economy, thus offering highly attractive
operating costs and low emissions profile. As the ESI technology
continues to be developed, Westport will incorporate competitive
performance upgrades to support the longevity of this system."
Key Features of Westport ESI Natural Gas System
Optimized for spark ignited engines - Improvements in combustion and
thermal management compared to typical spark-ignited natural gas
engines ultimately enhance the engine's reliability.
Designed to provide up to 10% improvement in power and torque over the
base diesel engine - Higher performance from a spark-ignited natural
gas engine compared to a diesel engine potentially allows a 4L natural
gas engine to replace a 6L diesel engine, which results in substantial
Comparable fuel economy to diesel engine - By taking advantage of the
positive properties of natural gas—for example, natural gas has less
calorific energy compared to diesel—Westport believes that it is able
to improve the fuel economy of a typical spark-ignited natural gas
engine. In addition, cooled exhaust gas recirculation (EGR) is applied,
which is a well known mechanism for improving fuel efficiency, used
extensively in passenger vehicles.
Designed to provide up to 40% brake thermal efficiency - Brake thermal
efficiency measures how much fuel is converted to useful energy.
Typical spark ignited natural gas engines have approximately 25-30%
brake thermal efficiency and diesel engines have approximately 41%
brake thermal efficiency.
Designed to provide up to 5% weight reduction compared to the base
diesel engine - Weight is a critical element for truck fleets, so any
reduction in engine weight equals an increase in payload.
Fuel injection - The current system utilizes port injection providing
better cylinder to cylinder control of the air fuel ratio. However, it
is designed for upgrades to future technologies.
Incorporates key Westport engine components - This includes Westport
WP580 Engine Management System and Westport fuel system components.
Stoichiometric operation and three-way catalyst (TWC) aftertreatment -
TWCs are effective, simple devices, packaged as part of the muffler,
that provide consistent emissions control performance and are
maintenance-free. By using 100% natural gas, there is no requirement
for diesel particulate filter (DPF) or selective catalytic reduction
(SCR) systems. This allows cost and weight reduction over base diesel
Expected to meet the most rigorous emissions levels - Westport ESI is
designed to meet the latest emission regulations including Euro VI and
U.S. Environmental Protection Agency 2014 standards.
Compressed natural gas (CNG) or liquefied natural gas (LNG) capability -
Every natural gas engine burns CNG. Ultimately, the customer will
decide which form of natural gas they wish to carry—either high
pressure CNG or cold cryogenic LNG—based on a number of variables
including but not limited to: weight of the load; weight of the fuel
storage system; range required by the vehicle; and availability of CNG
Westport is currently in various stages of development and negotiation
with several vehicle and engine OEMs for ESI applications in
medium-duty truck and automotive applications.
Westport engineers the world's most advanced natural gas engines and
vehicles. More than that, we are fundamentally changing the way the
world travels the roads, rails and seas. We work with original
equipment manufacturers (OEMs) worldwide from design through to
production, creating products to meet the growing demand for vehicle
technology that will reduce both emissions and fuel costs. To learn
more about our business, visit westport.com, subscribe to our RSS feed, or follow us on Twitter @WestportDotCom.
Note: This document contains forward-looking statements about Westport's
business, operations, technology development or the environment in
which it operates, which are based on Westport's estimates, forecasts
and projections. These statements are not guarantees of future
performance and involve risks and uncertainties that are difficult to
predict, or are beyond Westport's control. Consequently, readers should
not place any undue reliance on such forward-looking statements. In
addition, these forward-looking statements relate to the date on which
they are made. Westport disclaims any intention or obligation to update
or revise any forward-looking statements, whether as a result of new
information, future events or otherwise.
SOURCE: Westport Innovations Inc.
For further information:
Vice President, Capital Markets & Communications