2-step variable compression ratio mechanism shown for first time in U.S.
AUBURN HILLS, Mich., April 10 /PRNewswire/ -- FEV, a leading developer
of advanced powertrain and vehicle technologies, announced today that it
will exhibit a 2-step variable compression ratio (VCR) mechanism for the
first time in the U.S. at the 2008 SAE World Congress, April 14 - 17, 2008
at the Cobo Center in Detroit. The VCR mechanism was developed for use in
both gasoline and diesel medium and heavy duty engines. The announcement
was made by Gary Rogers, FEV, Inc. president and CEO.
"This mechanism has the potential to contribute greatly to overall
vehicle fuel economy and the reduction of emissions," said Rogers. "The
powertrain continues to evolve in response to the never-ending desire for
higher efficiency. The need to explore renewable energy sources and fuels
adds even greater demands for flexibility, while still focusing on reducing
greenhouse gas emissions to the greatest extent possible. At FEV we are
constantly looking at options that can be easily and cost effectively
integrated into current technology to accelerate that evolution."
The 2-step VCR mechanism dynamically adjusts the center of the bore at
the top end of the conrod, thereby achieving compression ratios of 14:1 -
17:1, depending on configuration, increasing engine efficiency and reducing
NOx emissions. Key to the system is its ability to be integrated into
existing engine designs due to its carry over piston and pin design. Other
benefits derived from the ability to adjust the compression ratio include
improved cold startability and the potential to optimize performance while
utilizing alternative fuels.
Designed for medium and heavy duty engines, the system currently
supports peak cylinder pressures of 180 bar and is presently completing
durability testing.
About FEV
FEV is an internationally recognized powertrain and vehicle engineering
company that supplies the global transportation industry. FEV offers a
complete range of engineering services, providing support across the globe
to customers in the design, analysis, prototyping, powertrain and
transmission development, as well as vehicle integration, calibration and
homologation for advanced internal combustion gasoline-, diesel-, and
alternative-fueled powertrains. FEV also designs, develops and prototypes
advanced vehicle / powertrain electronic control systems and
hybrid-electric engine concepts that address future emission and fuel
economy standards. The FEV's Test Systems division is a global supplier of
advanced test cell, instrumentation and test equipment. The FEV Group
employs a staff of over 1,700 highly skilled specialists at advanced
technical centers on three continents. FEV, Inc. employs approximately 300
personnel at FEV's North American Technical Center in Auburn Hills, MI.
SOURCE FEV, Inc.
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Related links:
http://www.sae.org/congress
CONTACT:
Leah Heidt, FEV, Inc., +1-248-373-6000,
heidt@fev-et.com; Marc Harlow, marc@harlowpr.com, or Joe
Rohatynski, joe@joepr.com, +1-517-579-0789, both of
Rohatynski-Harlow Public Relations for FEV, Inc.
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