accessory gearbox


Also found in: Acronyms.

accessory gearbox

accessory gearboxclick for a larger image
The section of an aeroengine that contains the devices to operate such accessories as fuel pump(s), hydraulic and air pumps, and generators. An accessory gearbox is driven by a driveshaft from a bevel bearing connected to a compressor shaft in some gas turbine engines.
References in periodicals archive ?
The Silvercrest accessory gearbox facilitates the transmission of power from the engine core to the engine and aircraft accessories including the fuel pump, lube pump, generators, and hydraulic pump.
UTC Aerospace Systems% Engine & Controls Systems business was also selected by Snecma (Safran) to provide the Accessory Gearbox System for the Silvercrest Engine, which powers the latest Falcon 5X Business Jet.
Its principal products include helicopter gears and transmissions, accessory gearbox assemblies, rotorcraft drive systems and other machined and fabricated parts.
The T700 engine is unique in that it has a built-in integrated particle separator (IPS) blower as part of the engine's accessory gearbox.
While doing a daily inspection on an MH-53E, Petty Officer Johnson discovered severe scoring on the drive shaft for the accessory gearbox from an improperly routed hydraulic line.