Emission Controls

Nett Technologies BlueCAT 300

Effective April 1, 2009, the California Air Resources Board (CARB) has passed a fleet requirement regulation that requires that all existing fleets consisting of more than four pieces of Large Spark Ignition (LSI) equipment take steps to reduce emissions. All equipment or retrofit kits must be ordered on or before March 31, 2009 and installed prior to the end of 2009. This includes forklifts, sweepers, scrubbers, tow tractors and airport ground support equipment.Initial reductions for fleet average emissions for large forklift fleets, medium forklift fleets and non-forklift fleets must be met either by retrofitting or replacing the exhaust system to be compliant or to retire the vehicle.

The BlueCAT 300 Emission Control System, by Nett Technologies, has been approved by CARB for retrofit on propane fueled LSI engines that are 3.0L and under for model years 1990 - 2001 and non-complying engines for phase-in model years 2001 - 2003. The system consists of a 3-way catalytic converter/muffler, and a digital air-fuel ratio controller. With over 5,000 muffler designs for virtually any application, BlueCAT 300 is designed to help you become 100% complaint and avoid costly fines.The BlueCAT 300 ECU (electronic control unit) is packaged in a rugged metal enclosure suitable for dash or engine compartment installation. Included on the control unit are self-diagnostic LED indicators which allow for monitoring of its operation This feature provides a powerful tool for engine operators and service technicians, which minimizes the chances of system malfunction and/or the release of excessive emissions. The entire system, designed for quick and easy installation, includes the following:

• Oxygen sensor port built into the converter/muffler
• Self-diagnostic ECU with all wiring and connectors
• Comprehensive instructions

How it Works:

The BlueCAT 300 air-fuel ratio controller is a closed-loop system and includes a zirconium oxygen (O2) sensor, fuel system control solenoid and an ECU. The ECU receives a feedback signal from the O2 sensor and modulates the solenoid to maintain the engine A/F ratio at the stoichiometric point, thereby maximizing catalyst performance. The fundamental reactions in a 3-way catalyst are between CO (carbon monoxide) and HC (hydrocarbons) on one side and NOX (oxides of nitrogen) on the other. To achieve high conversions of all three emissions simultaneously, the air/fuel ratio must be at the stoichiometric ratio. Simply, this means the amount of CO and HC are in proportion with the amount of NOX present in the exhaust - these gases combine to form water, nitrogen and carbon dioxide.