Dana's Intelligent Cooling System Uses Real-Time Data To Improve Engine Performance, Fuel Economy

Oct 21, 2002

    TOLEDO, Ohio, Oct. 21 /PRNewswire/ -- Convergence 2002, Booth # 520 --
Dana Corporation's (NYSE: DCN) Intelligent Cooling(TM) system improves engine
performance and fuel economy by regulating coolant flow based on real-time
engine temperature, rather than engine speed.
    (Photo:  http://www.newscom.com/cgi-bin/prnh/19990903/DANA )
    Dana's new Intelligent Cooling system allows the engine to operate at
higher temperatures, with more uniformity and significantly greater control.
The system combines a high performance electric water pump, a multi-port,
proportional flow control valve to replace the thermostat, a speed-
controllable cooling fan, a "smart" cylinder head gasket with embedded
temperature sensors, and system control capability. The Intelligent Cooling
system is designed for greater fuel and emissions efficiency, a significantly
faster engine warm-up from cold start and afterboil protection after key-off.
    "Many other engine systems are electronically controlled, but the engine
cooling system has changed very little since the birth of the automobile,"
said Mike Laisure, president of Dana's Engine and Fluid Management Group.
"Intelligent Cooling is an underestimated opportunity to improve engine
performance, fuel economy and occupant comfort."
    Real-time thermal data for Intelligent Cooling comes from a "smart"
cylinder head gasket developed by Dana.  The smart gasket features embedded
sensors, making it possible for microprocessors to monitor the environment
inside the heart of the engine and make needed adjustments.  The head gasket
is the only independent component in intimate contact with the engine
combustion process, lubrication system and coolant system.  Dana's smart
gaskets, equipped with miniature temperature, pressure and flow-rate sensors,
provide the engine control unit with real-time, reliable information about
engine operation.
    A high-performance electric water pump varies coolant flow rate
independent of engine speed, reducing engine parasitic loss and enhancing
performance in low-speed, high-load operating conditions, such as uphill
trailer towing or off-road driving.  It also provides heat soak protection
after key-off.
    A multi-port, proportional flow control valve controls coolant flow to the
heater core or other secondary cooling circuits.  The valve replaces the
traditional wax thermostat, which only reacts to water temperature at its
location, not real-time thermal conditions inside the heart of the engine.
Other disadvantages to the thermostat include limiting dynamic control and
restricting coolant flow even when fully open, which increases water pump
power consumption. The multi-port, proportional flow control valve receives
electric signals from microprocessors based on data from gasket sensors,
resulting in more precise regulation of coolant flow.
    System control of the pump, valve and a speed-controlled fan can be
packaged into the components themselves, into a single remote unit that
controls all three, into the pump-mounted control unit, or into the vehicle
engine control unit.
    In addition to its fuel economy and engine performance improvements,
Intelligent Cooling also allows the packaging benefits of using a smaller
radiator. Traditionally, the radiator takes up an excess amount of space
because it is sized to compensate for worst-case engine temperature
conditions, a job the Intelligent Cooling system eliminates.
    Founded in 1904, Dana Corporation is a global leader in the design,
engineering, and manufacture of value-added products and systems for
automotive, commercial, and off-highway vehicle manufacturers and their
related aftermarkets.  The company employs approximately 70,000 people
worldwide, all dedicated to achieving innovation through close collaboration
with customers.  Based in Toledo, Ohio, Dana operates hundreds of technology,
manufacturing, and customer service facilities in 34 countries. The company
reported sales of $10.3 billion in 2001.

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SOURCE  Dana Corporation

Web site:  http: //www.dana.com

Photo:  http: //www.newscom.com/cgi-bin/prnh/19990903/DANA AP Archive:
http://photoarchive.ap.org PRN Photo Desk, 888-776-6555 or 212-782-2840

CONTACT: Jeff Cole of Dana Corporation, +1-419-787-6262, or jeff.cole@dana.com

Company News On-Call: http: //www.prnewswire.com/gh/cnoc/comp/226839.html

CAPTION: DANA    DANA CORPORATION LOGO    Dana Corporation logo.
(PRNewsFoto)[TC]    TOLEDO, OH USA    10/30/2001