KARIYA, Japan, Sept. 7, 2012 /PRNewswire/ -- DENSO
Corporation has developed a Cold Storage (CS) Evaporator, which
limits the increase in vehicle cabin temperature during an idle
stop when stop/start technology is employed. The newly developed CS
Evaporator is equipped with a cold insulator, located in the heat
exchanging area, which stores cold energy to be used to cool
in-vehicle cabin air while the engine and air-conditioning cycle is
off in the idle-stop state.
(Photo: http://photos.prnewswire.com/prnh/20120907/DE70420 )
"Air-conditioning systems with our CS Evaporator can limit the
increase in cabin temperature when the engine and air-conditioning
are off during an idle stop," said Akio
Shikamura, senior executive director of DENSO's Thermal
Systems Business Group. "This helps maintain occupant comfort while
also increasing the vehicle's fuel efficiency."
The Evaporator
An evaporator is a component driven by engine power that
is used in the air-conditioning cycle. How it works is the cold
refrigerant exchanges heat with warm air to send cooled or
dehumidified air to the cabin. For conventional air-conditioning
systems, when the engine stops during an idle-stop mode, the
air-conditioning cycle also stops, which may impact cabin
temperature. In order to cool the cabin on higher temperature days,
the engine needs to remain on to continue the air-conditioning
cycle, which is not fuel efficient.
DENSO's CS Evaporators:
The CS Evaporator has the same basic structure and is the
size of a conventional evaporator but it can store cold energy more
quickly and discharge cooled air more slowly. To accomplish this,
DENSO installed a closed case with inner fins and a cold insulation
inside. The cold insulation case is placed between refrigerant
tubes, which the cold insulator directly and efficiently extracts
cold energy from during the air-conditioning cycle. When the
air-conditioning cycle is stopped, cooled air is slowly released
from the cold insulation container via the outer fins connected to
the refrigerant tubes. With these functions, storing cold energy
can be completed even in a relatively short time of vehicle travel
and cooled air can be supplied to the cabin for a long period of
time.
This product will be used in the Wagon R, which was launched in
Japan on Sept. 6 by Suzuki Motor Corporation. DENSO will
progressively make the CS evaporator available for a greater number
of vehicle models worldwide.
DENSO will continue its effort to develop environmental
technologies which can help increase fuel efficiency while reducing
CO2 emissions, as well as improve occupant comfort.
DENSO Corporation, headquartered in Kariya, Aichi prefecture,
Japan, is a leading global
automotive supplier of advanced technology, systems and components
in the areas of thermal, powertrain control, electric, electronics
and information and safety. Its customers include all the world's
major carmakers. Worldwide, the company has more than 200
subsidiaries and affiliates in 35 countries and regions (including
Japan) and employs over 120,000
people. Consolidated global sales for the fiscal year ending
March 31, 2012, totaled US$38.4 billion. Last fiscal year, DENSO spent
9.5 percent of its global consolidated sales on research and
development. DENSO common stock is traded on the Tokyo and Nagoya stock exchanges. For more information,
go to www.globaldenso.com, or visit our media website at
www.densomediacenter.com
In North America, DENSO employs
more than 14,000 people with consolidated sales totaling
US$6.2 billion for the fiscal year
ending March 31, 2012.
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SOURCE DENSO Corporation
