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Catalog excerpts

20026 - 1

One pump is fitted to each large commercial aircraft utilising this system. The unit has an excellent dry running capability and incorporates a thermal device which terminates the DC supply to the motor should overheating occur. Being a positive displacement pump the reprime capability is very effective. The pump is mounted within the canister which is located in the aircraft fuel tank. This allows the pump to be removed without having to drain the tank. This positive displacement vane pump is driven by a fuel flooded DC motor. It provides fuel supply to the APU during start-up, utilising either a ground based DC supply or an aircraft battery supply. In the event of an in-flight engine flameout the pump can be used to provide fuel to relight the main engine. Design Features • Dual purpose: APU supply & emergency engine relight • Canister mounted and can be located in a dry bay • Dry running capability • Fuel flooded brushed DC motor with RFI suppression • Reliable operation • Explosion proof and thermally protected motor • Demonstrated tolerance to contaminated fuel • By-pass flow provision including non-return valve

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20026 - 2

Pump Type 20026 Typical Performance Curves 3.C Eaton Aerospace Limited Aerospace Group Fuel Systems Division Abbey Park, Southampton Road Titchfield, Fareham Hampshire, PO14 4QA UK Tel: +44 (0)1329 853000 Fax: +44 (0)1329 853797 Eaton Aerospace Limited Aerospace Group Fuel Systems Division Pathfields Business Park Station Road, South Molton Devon, EX36 3DW UK Tel: +44 (0)1769 573371 Fax: +44 (0)1769 572755 F:T>N Powering Business Worldwide © 2012 Eaton Corporation All Rights Reserved Printed in USA Form No. DS600-135 July 2012

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