Cat C3.6 engine makes use of much less DEF, outputs extra energy and torque than predecessor

At a latest media occasion in Clayton, North Carolina, Caterpillar unveiled a brand new diesel engine in probably the most standard dimension courses.

The Cat C3.6 engine places out from 74 to 134 horsepower and 406 lb-ft of torque whereas offering a 5 p.c enhance in energy density and a 12 p.c enhance in torque in comparison with its predecessor engine, the Cat C3.4.

As with all off-road diesel engines on this horsepower band, the Cat C3.6 makes use of diesel exhaust fluid in an SCR emissions management system with a DPF, however the brand new engine consumes six to 10 p.c much less DEF than the older mannequin.

A direct injection gas system and aftercooled turbocharger allow this engine to supply optimum efficiency in a variety of circumstances, says Adrian Hillman, gross sales supervisor. “The digital waste gate turbocharger permits the engine to run the place it must on a regular basis,” he says. “If you want to management enhance pressures otherwise you’re at excessive altitudes or you might have a excessive transient load, this enables consumption pressures to be managed and permits the engine to run effectively with minimal influence on operations.”

Thermal administration has additionally turn into a key design criterion for the brand new C3.6 engine, says Hillman. “Aftertreatments like warmth. If it’s a must to elevate temperatures at decrease rpms or decrease hundreds, the newer engines will try this higher with none interventions. It permits the engine to correctly carry out its regens in a wide range of ranges.”

Versatile set up

Adrian Hillman and the brand new Cat C3.6 diesel engine. Photograph: Tom Jackson

Given the big inhabitants of machines this engine dimension matches, Caterpillar additionally made a number of adjustments to enhance set up ease and adaptability. The aftertreatment modules could be positioned in a number of areas. And the oil filter could be put in on the best or left aspect relying on what the shopper requires. Oil filter mounting areas are additionally spacious sufficient to make oil filter adjustments easier and fewer time consuming.

Moreover, the ability take off has been moved to the flywheel housing. “There may be loads of house for something you wish to connect to it,” says Hillman. You’ll be able to put bigger parts on with much less interference. Issues like auxiliary hydraulic pumps or air compressors will probably be a lot simpler to put in.”

One other change: a composite oil pan stiffens the block to cut back decibels about 3dB, making the engine and machine quieter.

The Cat C3.6 is twin licensed Tier 4 Last and Stage V with no adjustments to the engine or aftertreatment. It’s at present in manufacturing at Caterpillar’s facility in Peterborough, England.