The electronic engine management system has many features found in new premium diesel engine control systems. These features include:
- Tamper - proof operation with built-in diagnostic package
- Engine protection from over-speed, over-temperature, fuel composition shift, over fuelling
- Idle speed governing (especially important for vehicles with high accessory loading)
- Max speed governing
- Closed loop fuel control
- Temperature compensation for fuel and charge air
- Cold start compensation for idle speed and mixture control
- Able to operate in high ambient temperature.
System warranty will run concurrent with OEM or rebuild warranty
18 Beach Ave. Mordialloc,
Victoria 3195. Australia
Tel: +61 3 95871385; Fax: +61 3 95871467
Email: info@gastechengine.com.au
Gastech's Electronic Gas Engine System
- Combustion efficiency rather than exhaust catalytic aftertreatment is the primary means to control tailpipe emissions. Approximately 40% excess air is supplied to the combustion chamber in the lean-burn system. Unburned hydrocarbons (HC) and carbon monoxide (CO) are oxidised. Abundant oxygen is available for combustion. The additional air also reduces peak combustion temperatures lowering the formation rate of oxides of nitrogen (NOx).
- Simultaneous reduction of HC and NOx while maintaining high efficiency with good knock margin requires careful development of the entire combustion system. Optimization of compression ratio, turbo boost control, air/fuel ratio, ignition timing, and combustion chamber shape are critical to successful operation of the engine. Fine tuning for good starting.
- Oil consumption control is also critical since unburned lube oil contributes to exhaust particulate emissions. Most diesel engines are not designed to reduce oil consumption under intake vacuum conditions. This occurs with throttled engines during idle and deceleration. Redesign of the piston ring pack and the addition ofsuitable intake valve seals are normally required.
- The cylinder heads are machined for spark plug installation. Premium exhaust valves and seat materials are used for long life under gaseous - fuelled operation. Valve covers are modified as necessary for spark plug and ignition wire installation. We offer both fullyl electronic and manual fuel and ignition systems depending on customer requests, engine type and application.
Gastech's approach to this industry has been to convert the diesel engine to dedicated multi port fuelling with lean-burn, spark-ignition combustion. Lean burn offers power and torque equal to the base diesel, with low emissions, acceptable combustion temperatures and high efficiency.
Gastech's Technology
Petrol engines can be converted to Bi fuel or dedicated gas operation using multi port electronically controlled fuel injection with no loss of power or efficiency.
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Emissions in a controlled engine environment are managed by the design of the engine map. According to the desired levels of resultant emissions, the precise level of emissions is set to be achieved in an operational environment. By way of example the following are achieved in current markets.
Emissions
