TASK 79-22-41-990-501 Oil Scavenge Pump - Related Parts - Description And Operation Of The Oil Scavenge Pump

DMC:V2500-A0-79-22-4100-00A-040A-C|Issue No:001.00|Issue Date:2013-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Description

  1. TASK 79-22-41-990-501 Oil Scavenge Pump - Related Parts - Description And Operation Of The Oil Scavenge Pump

    1. Description

      The scavenge pump is a removable assembly installed on the rear face of the gearbox. The scavenge pump serves to boost the scavenge capacity of the oil pump module. The pump consists of a separable housing which contains a drive gear which drives two pump gear modules. Refer to Figure.

    2. Operation

      The pump is driven through a gearmesh with an idler gearshaft, driven in turn by the angle gearbox input gearshaft. The direction of drive rotation is clockwise. The six stages of the pump get back the oil from:

      No.1, 2 and 3 bearing compartment (1 stage).

      Deoiler (1 stage).

      No.5 bearing compartment (1 stage).

      Angle gearbox (1 stage).

      Accessory drive gearbox (2 stages).

      The scavenge oil is returned to the tank through a fine scavenge filter.

    2. Figure: Oil Scavenge Pump

    Oil Scavenge Pump