North American Processing initialized using SDMO gensets back in 1999, soon to become a standard for GUSMER Canada/GRACO. The genset proved very much a value in their age, based on prepackaged controls which in event of problems, displayed troubleshooting prompts or codes allowing ease of remote diagnositics. In 2006 N.A.P .identified the cost versus value, including square foot of cargo area needed for this prepackage, and we went to a leading industrial integrator to assemble a package offering all the advantages of the SDMOs, without any frills. The outcome of this was to base our next line of generators on the Yanmar Industrial series engines, combined with USA made, Marathon generator end. This allowed for a 50% American made composition, supporting products truely made in our country and a significantly better motor end. The Yanmar engine has a remote panel mount control so the generator can be started from outside of the vehicle. The weight is 30-40% less and the area for setting the generator is also reduced. Yanmar engines are world leader and builds many midsize diesel engines (and complete tractor assemblies) for companies such as John Deere, Bobcat, Komatsu, Cub Cadet and many many others. The turbo units (all engines used are Turbo diesels) are approved for use in all states and are engineered second to none.
REMOTE TANK FILL NOZZLE
REMOTE TANK FILL NOZZLE
THRU-FLOOR THIMBLE
Each generator is installed in the rig with details that enhance its ability to work throught its life cycle. Some generators will require custom fuel tanks, some operate from the trucks fuel tank and some are mounted on a platform based fuel tank. North American Processing will provide details such as external fuel fill nozzles to keep product where it belongs.
Much detail is spent in providing clear exhaust paths which properly accomodate generators emissions as well as potential vibration insulation and finally, safety for the operators.
PERKINS/KOHLER 30 KW REMOTE CONTROL
THRU-WALL EXHAUST THIMBLE
EXHAUST ISOLATOR & THIMBLE
Often mechanical rooms are designed where the generator is installed. These rooms are beneficial to isolate residual heat and noise from the equipment. Generator radiators are booted to an outside louver and the pusher fan moves air through the radiator and outside. This configuration creates a through-draft, exchanging the mechanical room cavity at near one time per minute allowing any residual noise, heat or nuisance fumes to be evacuated from the room.
In union with this negative pressure design, exhaust thimbles are created to provide an air gap for exhaust pipe to transition from inside the mechanical room to outside the rig. Vibration isolators are used in the exhaust connection to eliminate vibration transfer which would occur from the engine running and subsequently transfer to the rig and create a low-resonance vibration. This vibration is fatiguing to the rig as well as those who operate it.
100' SHORE POWER CORD AND REMOTE GENSET CONTROL
GENERATOR BOOTED TO LOUVER FOR VENTILATION
GENERATOR BOOTED TO LOUVER FOR VENTILATION
Some customers will opt to have a self-contained generator power rig which is also capable of connecting to shore power. N.A.P. likes to configure the generator controls to be mounted underbody, in a job box, along with the shore power cord. Above pictures illustrate two different types of generators with these same principles applied.
GENERATOR IN PLACE
BUILDING THE WALL
FINISHED WALL
When first starting the build out for a generator install, the entire rig will be insulated. The generator louvers are cut into the wall and a plenum box is constructed at the correct height to accomodate draft boot. The genset mounts are typically applied to a rail structure of the under carriage using number 5 grade bolts and appropriate washers and lock nuts. Final bulkhead wall is assembled and insulated for vibratory purposes, this is not as simple as stuffing it with fiberglass (the "F" word).
