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tru -- CARB verifies Rypos DPF/ULETRU for reefer engines

Posted: 13 Dec 2011 10:22:52
The California Air Resources Board (ARB) has verified the Rypos
DPF/ULETRU (Level 3+) diesel particulate filter (DPF) for use on
certain trailer transport refrigeration unit (TRU) using 2003 and
newer model year engines. 

The Rypos DPF/ULETRU can be used to comply with ARBís
Ultra-Low-Emission TRU (ULETRU) In-Use Performance Standard on
certain trailer TRUs using 2003 and newer model year engines. 
Compliance information related to the TRU Airborne Toxic Control
Measure is available at:

The RYPOS DPF/ULETRU is an active diesel exhaust filter system.
It consists of a filter housing, electrical control circuit, and
filter cartridges made of sintered metal fibers. The RYPOS
DPF/ULETRU uses controlled electric heating for reliable
regeneration of the filter cartridges. A diesel oxidation
catalyst (DOC) attached between the engine exhaust manifold and
the inlet of the filter is added to remove the soluble organic
fraction (SOF) while reducing carbon monoxide (CO), and total
hydrocarbon emissions (THC).  It is microprocessor controlled
with a backpressure control system, an electrical control
circuit, and a backpressure warning indicator.

TRU owners should read about the specific conditions for which
the DPF/ULETRU has been approved in the Executive Order (EO),
which will be posted within a few days on ARBís Verification
Procedure Ė Level 3 webpage at
http://www.arb.ca.gov/diesel/verdev/level3/level3.htm.  Specific
engine models and families that apply are listed in the EO's
attachment, will also be listed at the above webpage within a few
days.  Further information may be found at Rypos' website at: 

TRUs are refrigeration systems powered by diesel internal
combustion engines designed to control the environment of
temperature-sensitive products that are transported in trucks,
trailers, shipping containers, and railcars.  These units operate
at distribution centers, grocery stores and other facilities
which are often in close proximity to residential neighborhoods. 
The emissions from TRUs pose a potential threat to both public
health and the environment.  

Information about the current TRU ATCM is available at the TRU
Website at:  http://www.arb.ca.gov/diesel/tru/tru.htm

If you have any questions, please contact the TRU Help Line at
1-888-878-2826 or call 916-327-8737.

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