HPFi® is an electronically controlled, high-pressure fuel injection system that combines several proven control components aimed at meeting very stringent operating, performance, and emissions requirements. This technology eliminates many of the characteristic problems of direct-injected, large-bore, natural gas-fired engines.

HPFi  provides exact control of the fuel gas injection event. Add to this control precision the mixing energy of a high-pressure jet of fuel gas, and you get an optimally mixed air/fuel charge that produces combustion performance and emissions characteristics equivalent to well-designed, state-of-the-art IC engines.

The commercial availability of HPFi  is the result of Dresser-Rand Enginuity's commitment to turn advanced technology into applied solutions. Dresser-Rand Enginuity has worked with key suppliers, including Woodward Industrial Controls, to develop a well-engineered system that provides a cost-effective strategy for upgrading existing engines in the field.

HPFi  is another example of technology that works.

Additional Benefits of HPFi  include:

• Up to 80% reduction of NOx emissions*
• Up to 50% reduction of CO emissions*
• Up to 8% fuel savings*
• Improved start-up reliability
• Easy integration with iMPACT for closed-loop balancing and combustion control
• Elimination of mechanical governor and valve train

*According to actual test data.  Specific results will vary depending on engine make and model and operation conditions.

Performance and Operating Characteristics:

• Direct electronically controlled fuel injection
• High fuel injection pressure
• Superior in-cylinder air/fuel mixing
• Precise fuel injection metering
• User-defined emissions and fuel performance
• Simple open-loop to sophisticated closed-loop control of individual injectors
• Adaptive speed/load optimization

Downloads:

HPFi Brochure
Hydraulic Manual
Valve Rebuild Manual
Installed Solution Base