Designed around customers' needs, the GEnx represents a giant leap forward in propulsion technology. The engine uses the latest generation materials and design processes to reduce weight, improve performance and lower maintenance.
The GEnx is part of GE's "ecomagination" product portfolio - GE's business strategy to develop new, cost-effective technologies that enhance customers' environmental and operating performance.
The GEnx family has two engine models, the -1B and the -2B. The -2B is the sole powerplant on the new 747-8, and the -1B powers the 787 Dreamliner.
Both engines share a common suite of technology, but each model has been modified to meet the needs of the airplane they power.
The GEnx-2B engine successfully entered revenue service in October 2011 with Cargolux, followed by the -1B version in April 2012 with Japan Airlines. As of December 2012, 14 airlines were operating over 180 GEnx engines in service.
Based on the ratio of decibels to pounds of thrust, the GEnx is the quietest engine GE has produced due to the large, more efficient fan blades that operate at slower tip speed. The engines are based on proven architecture and superior technology, developed in the United States and refined, based on inputs received from research centers across the globe.
The heart of every turbofan is its core. And at the heart of the GEnx is the most efficient, highest compression ratio, compact core GE has ever produced. Advanced 3D Aero technology in the design of the blades and vanes, maximize airflow through the core. In the aft stages are unique powdered metal disks that are specially designed for a high- temperature environment.
The GEnx also utilizes a unique FOD-rejection system that has proven to be incredibly successful on the GE90.
Reducing exposure to future environmental charges was a key requirement for GEnx. To do that, GE developed the most advanced, lean-burn combustor in the industry, helping it to be the lowest NOx-producing engine in its class.
It is the world's first commercial jet engine with front fan case and fan blades made of carbon fiber composites, which are both durable and low maintenance. This technology reliability has been validated since the early 1990s and on over 30 million flight hours on the GE90 engine.
The GEnx is setting the standard for widebody engines. It is building on the highly successful GE90, by leveraging common engine architecture, mature component technologies, and the most robust development and maturation program in the industry.
Compared to the CF6-80C2, the benefits of the GEnx include:
- Double digit improvement in fuel efficiency
- 40% NOx emissions reduction
- A 13dB lower noise level
- An expected delay and cancellation rate that will be 50% lower
The GEnx is a giant leap forward. It takes advanced, proven technologies and combines all of them into one efficient, reliable turbofan.
Revenue-sharing participants on the GEnx are IHI Corporation of Japan, Avio SpA. of Italy, Volvo Aero of Sweden, MTU of Germany, TechSpace Aero of Belgium, Snecma (SAFRAN Group) of France and Samsung Techwin of Korea.