Pistonless rotary engine

June 5, 2009 - 12:03pm

Rolls-Royce’s development of an open-rotor engine for the next generation of midsize airliners has taken a giant leap forward after wind-tunnel tests revealed its design would comfortably meet current Stage 4 noise regulations.

August 31, 2008 - 1:43pm

The FAA has issued a proposed Airworthiness Directive for GE CF34 turbofan engines with high-pressure-rotor, four-step, air-balance-piston, stationary seals to remove these seals and incorporate an eight-step seal at the next piece-part exposure.

February 18, 2008 - 2:13am

CFM International has thrown down the gauntlet to engine manufacturers hoping to compete on the next generation of single-aisle airliners by accelerating its research on an advanced engine to replace its CFM56 by as early as 2015, the company announced here yesterday.

December 11, 2006 - 5:11am

A new two-seat helicopter powered by a twin-pack engine is being shown for the first time on Stand W903. Although roughly the size of a Robinson R22, the Swisscopter is notable for its innovative propulsion system that provides a level of safety unusual in this class of helicopter.

November 30, 2006 - 12:18pm

Meggitt (Stand A536) is introducing a number of products, including new developments in engine monitoring equipment revealed by its Vibro-Meter subsidiary. Fitted on the Boeing 737, for example, the new vibration monitors continuously check specific engine bearings and detect unusual signatures using advanced signal processing.

October 16, 2006 - 9:11am

Bell says its new anti-torque system will offer directional control, reductions in main rotor speed and noise and higher cruise speeds–up to 170 knots. Bell will evaluate the Propulsive Anti-Torque System (PATS) next year using a full-size gas turbine engine, inlet fan, bifurcated ducting and a series of test thrusters.