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We produce the world's first truly Internet capable of monitoring and diagnosis intelligent Multi-fuel Electronic Fuel Injection (EFI) power generation system for telecom industry primarily for their base stations (repeater sites) standby power requirement. We are seeking manufacturing and marketing partners to deliver our Multi-Fuel EFIgenset Generators from 10kW to 60kW.
 
Multi-Fuel EFIgenset Generator
 
 
Our new breed of EFIgenset generator can be easily adapted to run on Liquid Propane Gas (LPG) or Compress Natural Gas (CNG) by replacing the evaporating device and ECU data set. It can be modified to run on Gasoline with gasoline fuel delivery components such as fuel pump, fuel rail and injectors. These generators are controlled by multi-core microprocessor Engine Control Unit (ECU) sought to impart a precise fuel and air mixture to the combustion chamber and ignites the fuel at the precise timing with stronger multiple sparks for complete combustion that releases minimal pollutants and maximum power. An oxygen sensor forms a closed-loop system to ensure the Air/Fuel Ratio (AFR) 14.7:1 (stoichiometric mixture) is achieved to completely burn all of the fuel.
 
Closed-Loop Governor

 
The Magnum series of governor, built onboard with ECU, responds to changes in engine speed after one flywheel tooth which makes our EFIgenset 15kW generator respond to sudden maximum load and off load instantly with less than one second to recover preset voltage and frequency. The system tracks cylinder events, ignition primarily, and can tell immediately when something has changed. It enables the generator to run atwarm-up speed of 1200RPM during cold weather and triggers Automatic Transfer Switch (ATS) to switch on the electrical load when the coolant temperature reaches 40ºC. Please check the GOVERNOR section of this website.
 
Center Control Panel
 
Center Control Panel (CCU) is an embedded computer interacts with the ECU and LPG Cylinder Switcher through CAN-BUS network. It collects and displays information such as voltage, current, frequency, wattage, engine rpm, engine coolant temperature, fuel temperature, intake manifold pressure, intake manifold temperature, coolant temperature, ambient temperature, gas injection PWM, battery voltage, LPG cylinder fuel level, single/three-phase power line conditions and etc. Weekly exercise parameter and TCP/IP network configuration can be programmed from the 7” color control panel screen.
 
Remote access and diagnosis
The sparsely scattered base stations installed on the mountain tops make maintenancedifficult and expensive. Remote access and diagnosis, combined with automatic weekly exercise are necessary to reduce these expenses. EFIgenset generator can be access through SMS or by a web browser through WiFi or 4G signals to connect the ECU onboard web server for fine tuning and diagnosis
 
SMS messaging system
Onboard SMS (Short Message Service) system of EFIgenset generator receive commands from the support team to start, stop, and send engine parameters and power output information on demand. When trouble occurs, the central control panel sends SMS error codes to the support team as well as SMS Log Server for record keeping. The management can access the log through a web browser or a smart mobile phone. The log shows the date and time when the trouble begins and when it was rectified, cause(s) and technician comments.
 
Generators for Highland
 
EFIgenset highland series are turbocharged generators to compress more air into the combustion chamber to deliver a higher output. Low temperature also associates with high altitude that standard equipment such as fuel rail heater and battery warmer are initiated when temperature drops below 5oC. Click here for more details aboutEFIgenset highland series.
 
Liquefied propane vs. vapor propane
The major shortfall of propane is hard starting. Propane enters the combustion chamber in a vapor form. Vapor volumetric measurement is greatly affected by temperature and altitude. This causes air fuel ratio change to too rich or too lean for the engine to burn. If a propane engine is well tuned in Chongqing, it may not start well and run well in high altitude Yunnan when temperature and altitude change. Thisphenomenon has small impact on liquefied propane that run on sequential electronic fuel injection engine. Vapor propane engine requires constant adjustment to the pressure regulator to provide appropriate mixture.
 
EFIgenset uses liquefied propane instead of vapor propane to eliminate the need for paralleling multiple propane cylinders to provide stable gas flow. It does not requireexternal heat belts on the cylinders to avoid freezing or condensation when large amount of propane is vaporized during genset operation. Each heat belt takes up 1000-1500W of power to keep each cylinder warm. Two heat belts consumes 2 – 3kW ofpower from the LPG vapor fueled generator.
 
Safety Measures
There are temperature and LPG/NG leakage sensors installed inside the engine compartment and LPG cylinder storage area. The entire system will be shutdown when there is a LPG/NG leak or fire. Lightning appears to visit high metal objects such as base station antenna very frequently. Generators and energized power lines tend to attract lightning bolt strikes. Surge protective devices, proper conduit for outdoor cables, and earthing network connected to the mobile base station lightning protection grid arecarefully examined.
 
Special Telecom Standby Power Requirements

Most telecom carrier equipment runs on 48V DC batteries. An intelligent phase-hunting battery charger is attached to the power grid, mostly single-phase, to recharge the battery packs. When there is power outage, the charger will hunt for the next live phase for power source without the activation of the generator. The operators of the telecom base-stations, or repeaters, prefers the generator to start up after a percentage of battery power, say 60% or 70%, has depleted. They may also have requirements that the generator will not be activated when one, two or three phases are totally out ofpower. This saves the expenses of refilling the fuel cylinder or tank.