HEAVY-DUTY TRUCKING
Heckmann Corp. has ordered 200 Peterbilt Model 367 natural gas trucks as part of its continuing transition toward natural gas. The trucks incorporate 15 L Westport GX gaseous-fueled engines.
LIKING LNG
IN A BIG WAY
New order for 200 LNG-fueled Peterbilt trucks
continues fleet’s transition to natural gas
BY DJ SLATER
Peterbilt Motors Co. has sold 200 Peterbilt Model 367 liq- uefied natural gas (LNG)
trucks to Heckmann Corp. as part
of Heckmann’s efforts to transition
its tractor-trailer fleet from traditional
diesel vehicles to natural gas.
Heckmann, headquarted in
Coraopolis, Pa., is a services-based
company focused on total water solutions for shale or unconventional oil
and gas exploration. The company’s
operation for the energy development
segment is called Heckman Water
Resources and includes water disposal, trucking, fluids handling, treatment and pipeline transport facilities,
and water infrastructure services for
oil and gas exploration and production companies.
Peterbilt’s Model 367 LNG truck is
powered by Westport HD’s GX engine,
which is available in ratings up to 475
hp and 1750 lb.ft. of torque. The 15 L
engine is based on the Cummins ISX
diesel and uses pilot diesel injection to
facilitate combustion.
LNG is stored in cryogenic tanks
and delivered through an LNG pump
by an engine-driven hydraulic pump.
The LNG is vaporized using excess
heat from the engine coolant and
exits the tank module at approximately 100°F and 4500 psi. The
warm, high-pressure gas is filtered
and passed through an accumulator
vessel that dampens pressure fluctuations and provides natural gas for
engine start-up.
At the same time, the diesel fuel
pump draws and pressurizes diesel
fuel, which along with the gas is
sent to a fuel-conditioning module,
where they are pressure regulated,
filtered and distributed to the fuel
injectors via fuel rails. The Westport
GX engine is electronically managed
by electronic control units, allowing
continuous adjustments to ensure
engine performance and efficiency,
Westport said.
www.peterbilt.com
