These leading-edge technologies and the engine's elegant architecture bring in high operational reliability, excellent utilization rate and route flexibility for more flights per year and more revenue for airlines. A first is the elimination of bleed air systems using high temperature/high pressure air from the propulsion engines to power aircraft systems such as the starting, air-conditioning and anti-ice systems. nozzles on General Electric’s GEnx, the high-efficiency, ultra-quiet, ultra-perfor-mance engine selected to power the Boeing Dreamliner and 747-8. The GEnx is the fastest-selling, high-thrust jet engine in GE Aviation history with more than 1,300 engines on order. [12] The airworthiness directive affects 43 Boeing 787 Dreamliners in the US. The General Electric GEnx (General Electric Next-generation) is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production … General Electric (NYSE:GE) posted a 107.91% decrease in earnings from Q2. Information for this article was provided by GE Aviation in Cincinnati, OH. It will also have a smaller overall diameter than the initial model to accommodate installation on the 747. Boeing is working with GE on software solutions to the problem. 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. [8] In the summer of 2012, three engines suffered Low Pressure Turbine (LPT) failures. [9], During the spring and summer of 2013, GE learned of four 747-8F freighters that suffered icing in their engines at altitudes of 40,000 feet and above. Unlike the initial version, for the 787, this version has a traditional bleed air system to power internal pneumatic and ventilation systems. Watch the GEnx animated overview from GE Aviation. The whole engine weighs 6 tonnes and can produce 76,100 pounds of thrust. GEnx is the best-selling engine on the 787 Dreamliner in addition to powering the four-engine Boeing 747-8. GEnx is a trademark of General Electric Company. The carbon-fiber composite fan blades on the GEnx engine feature a new, more efficient design, a reduced blade count (from 22 to 18 fan blades) and a composite fan case for further weight reduction. [11] Taking the 76,000 pounds of thrust, which the GEnx ca… Based on proven GE90 architecture, the GEnx engine offers up to 15% improved fuel efficiency and 15% less CO2 compared to GE’s CF6 engine. The GEnx has been designed to reduce weight, improve performance, and lower maintenance costs. It has a 10 stage high-pressure compressor and is quieter, helped by larger, more efficient fan blades. It first ran on ground in April 2016 and first flew on March 13, 2018; it powered the 777-9's maiden flight in early 2020. [13] Abradable material in the casing in front of the fan blades was ground to keep them from rubbing when ingesting ice or debris on 330 GEnx PIP-2. [8], In March 2014, a GEnx-powered Boeing 787 had its first in-flight shut down in operation when a JAL flight had to divert to Honolulu after an oil pressure alert, bringing its in-flight shut down rate to 1 per 278,000 hours. Zürich, Switzerland - March 08, 2015: Detail of fan blades and inlet guide vanes of a General Electric GEnx engine at Zurich Airport. The entire wiki with photo and video galleries for each article The GEnx is the fastest-selling, high-thrust jet engine in GE Aviation history with more than 2,700-plus engines in-service and on order. A 66,500 lbf (296 kN) thrust version (GEnx-2B67) will be used on the 747-8. [17] Key to GEnx engine's performance are its high pressure compressor, lean-burning combustor and lightweight durable composite materials, including the world’s first composite fan case and fan blades for commercial aircraft. They are 2 different engines, designed and produced by different manufacturers to fit the same basic requirement: powering the 787. The power from these generators is supplied to the main load buses through generator feeders and generator circuit breakers (see fig. [15], The GEnx is derived from the GE90 with a fan diameter of 111.1 in (282 cm) for the 787 and 104.7 in (266 cm) for the 747-8. General Electric Genx: Country: United States of America: Developed in: 2006: Type: Turbofan: List of aircraft accidents in the ASN database involving aircraft fitted with the General Electric Genx engine. GE Aviation, an operating unit of GE (NYSE: GE), is a world-leading provider of jet and turboprop engines, as well as integrated systems for commercial, military, business and general aviation aircraft. Both engines enable the move towards the More Electric Aircraft, that is, the concept of replacing previously hydraulic and pneumatic systems with electrical ones to reduce weight, increase efficiency, and reduce maintenance requirements. Designed specifically for the Boeing 787 Dreamliner family, the GEnx-1B engine delivers up to 15% better specific fuel consumption than its predecessor, a 2% fuel burn advantage over its competition and a 1% advantage with respect to fuel burn retention. It received its FAA type certificate on September 25. Nozzles with proven reliability General Electric began initial test runs of the bleedless GEnx variant on 19 March 2006. Qantas sets record for ultra-long trip, powered by GEnx Aviation Week GE Sees Military as Driving Next-Gen Technology GE Aviation. In January 2016 a Japan Airlines 787 had an inflight shutdown after flying through icing conditions, caused by ice formed on fan blades and ingested: the blades moved forward slightly and rubbed on the abradable seal in the casing. (3) For GE service information identified in this AD, contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: aviation.fleetsupport@ge.com. Sales, however, increased by 9.39% over the previous quarter to $19.42 billion. “A pound of thrust is equal to a force able to accelerate 1 pound of material 32 feet per second per second.” Let’s break that down: 32 feet per second is the same as the force of gravity — 9.8m/s². Aviation Week this weekend broke the news that Airbus and General Electric are discussing possible new versions of the A350XWB twin-aisle … GEnx is the best-selling engine on the 787 Dreamliner in addition to powering the four-engine Boeing 747-8. The GEnx is the fastest-selling, high-thrust jet engine in GE Aviation history with more than 2,700-plus engines in-service and on order. The General Electric GEnx (G eneral E lectric N e x t-generation) is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8. “The GEnx was the fastest selling engine in GE’s history, and now it’s the fastest production ramp up of a GE wide-body engine program,” says Tom Levin, general manager of the GEnx and CF6 engine product lines at GE Aviation. [14] "Uzbekistan Airways Selects GEnx engines for Boeing 787 Dreamliners", "China Eastern Selects GEnx Engine to Power Its Boeing 787 Dreamliners", "Volga-Dnepr Group Signs MOU for Additional GEnx-Powered Boeing 747-8 Aircraft", "FAA Orders 'Urgent' 787 Repair After Engine Fails at 20,000 Feet", "The Innovative 787 Carries Boeing, And Aviation, Ahead", General Electric Performs First Run of New GEnx Engine, "GE In Talks With Airbus Over Potential A350neo", "Issues With Newest Engines Provide Early MRO-Proving Opportunities", "GE identifies installation issue in GEnx, orders inspections", "Icing Hazards Surface on Boeing's Newest 747 Jet", "GE-powered JAL 787 has in-flight shutdown", "FAA orders engine icing fixes for GEnx-powered Boeing 787 Dreamliners", "FAA Orders Urgent Fixes For Boeing 787 Dreamliners", "Airbus and Boeing are head-to-head in the widebody sector", "GE wraps up GE9X trials as 777X flight tests near", "Designing High-Tech Engines For Easier Maintenance", "Type certificate data sheet number E00078NE, Revision: 14", "General Electric's GEnx-1B engine for the Boeing 787 makes first flight on 747 testbed", "GE plans mid-July nod for GEnx siblings", https://en.wikipedia.org/w/index.php?title=General_Electric_GEnx&oldid=987293869, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 November 2020, at 02:57. After the initial unveiling GE Aviation decided to offer the engine for the original Airbus A350 as… Overall pressure ratio (takeoff / top-of-climb). The GEnx is about 15% more fuel efficient than the prior-generation engines found on existing 767s, according to General Electric. Boeing selected two new engines to power the 787, the Rolls-Royce Trent 1000 and … To reduce weight, it features 18 composite fan blades, a composite fan case and titanium aluminide stage 6 and 7 low-pressure turbine blades. The engine carries composite technology[5] into the fan case. The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8. By Fall 2019, General Electric was offering the GEnx-2B, developed for the 747-8, for the revised 767-XF variant based on the 767-400ER, but needed enough volume to cover the new product certification. The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8. General Electric GEnx (ang. [7], Introduced in late 2011 on a 747-8 freighter, Cargolux surpassed one million flight hours in early 2017. 3). To reduce fuel burn, the 23:1 pressure ratio high-pressure compressor is based on the GE90-94B, shrouded guide vanes reduce secondary flows and counter-rotating spools for the reaction turbines reduce load on guide vanes.[19]. The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8. The GEnx-2B contains an identical core and similar materials as the GEnx-1B to provide synergies for mixed GEnx fleets. The most serious incident involved an AirBridgeCargo freighter; on July 31, while at an altitude of 41,000 feet over China, the flight crew noted two engines surging while a third lost substantial power. and contributing to increased fuel efficiency on the GEnx engine. The age ranges and birth years for Generation Z are now included with Millennials, Generation X, and Baby Boomers in Pew Research's official generational definitions. Top and below: The 1,000th GEnx engine at GE's jet … The GEnx is a massive bit of kit. The front rotating fan measures 2.82 meters across. [8] In March 2016, the US FAA ordered emergency fixes on the GEnx-1B PIP2. Boeing predicts reduced fuel consumption of up to 20% and significantly quieter engines than current turbofans. With the highest pressure ratio compressor in commercial service today, the GEnx has the best fuel efficiency in its thrust class, enabling it to power many of the longest routes. 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