Contents
- 1 What is accessory gear box?
- 2 Which engine section turns the accessory gearbox?
- 3 Why do the accessories have to be mounted on the accessory gearbox?
- 4 Why is accessory section important?
- 5 What is the purpose of accessory section?
- 6 Where is the accessory gearbox located?
- 7 Where is the location of an accessory drive gearbox?
- 8 What is a accessory plural?
- 9 What is the Silvercrest accessory gearbox used for?
- 10 What kind of gears are used for accessories?
What is accessory gear box?
accessory gearbox. 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.
Which engine section turns the accessory gearbox?
The accessory drive gearbox is driven by a shaft that extends directly into the engine and it is geared to one of the compressor rotors of the engine. It is usually driven by the high-pressure compressor.
How do most accessory gearboxes receive power?
MECHANICALLY DRIVEN ACCESSORIES For dual compressor, axial-flow engines, the main accessory drive gearbox usually receives its power from the high-pressure compressor drive shaft.
Why do the accessories have to be mounted on the accessory gearbox?
The primary function is to provide space for the mounting of accessories necessary for operation and control of the engine. Generally, it also includes accessories concerned with the aircraft, such as electric generators and hydraulic pumps.
Why is accessory section important?
Accessory Section The primary function is to provide space for the mounting of accessories necessary for operation and control of the engine. Generally, it also includes accessories concerned with the aircraft, such as electric generators and hydraulic pumps.
What is the primary function of the accessory section?
What is the primary function of the accessory section? The primary function of the accessory section is to provide space for the mounting of accessory for operation and control of the engine.
What is the purpose of accessory section?
Where is the accessory gearbox located?
It is usually placed between the compressor outlet and the combustor. In turboprops or designs with centrifugal compressors, it may be placed ahead of the compressor. For two-shaft designs, an accessory drive will be taken from the high-pressure shaft, i.e. the outer and shorter of the two concentric shafts.
What is the main function of the accessory drives?
Function The accessory drive is responsible for driving ancillary components such as the alternator, the power steering pump, the water pump or the air conditioning compressor.
Where is the location of an accessory drive gearbox?
What is a accessory plural?
accessory. noun. ac·ces·so·ry | \ ik-ˈse-sə-rē , ak- \ plural accessories.
How is an accessory gearbox in an engine?
The accessory gearbox is generally driven by the N2 shaft (connecting the high-pressure turbine to the high-pressure compressor) and in turn drives the engine accessories such as generators, hydraulic pumps, oil pumps, etc.
What is the Silvercrest accessory gearbox used for?
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. The intent of the procedure is to have power after you crash land and secure the engines, but the APP also drives the accessory gearbox.
What kind of gears are used for accessories?
Spur-type gears are generally used to drive the heavier loaded accessories or those requiring the least play or backlash in the gear train. Bevel gears permit angular location of short stub shafts leading to the various accessory mounting pads.
Where is the accessory gearbox on a 737?
Many 737 engines have an accessory gearbox on the 9’o clock position, which is part of why the engine has a flat-bottomed shape. What exactly is an accessory gearbox?