A320 Eaton Hydraulic Equipment
Ian Rosewarne.
Aftermarket.
Fuel and Motion Control Division,
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A320 Products – EDP and AC Motorpump
974540
AC electric Motor pump
3031863-001
Engine Driven Pump
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Agenda
• A320 hydraulic products
• P/N 3031863-001
PV3-240-10D
Engine Driven Pump (EDP)
• P/N 974540
MPEV3-032-15
Electric Motorpump (ACMP)
• A320 NEO hydraulic products
• P/N 3031863-002
PV3-240-10F
Engine Driven Pump (EDP)
• P/N 3022143-000
MPEV3-032-EA2
Electric Motorpump (ACMP)
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A320 NEO Products – EDP and AC Motorpump
•
EDP - P/N 3031863-002 – PV3-240-10F
•
P/N 3031863-002 is dedicated to the A320NEO and can’t be installed on
the A320 CEO.
REFs: Airbus ISA 29.10.00052 & TFU 29.10.00.047
•
ACMP - P/N 3022143-000 - MPEV3-032-EA3
•
Change per Airbus specification – Revised connector to suit A/C.
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Opportunity summary A320 hydraulic equipment
• Proven Engine Driven Pump (P/N 3031863-001) (Replaces the Parker P/N 42054-01)
• Proven reliability
•
•
Guaranteed reliability (15,000 hour MTBUR)
Proven field reliability (> 40,000 hour MTBUR)
• Hoses are interchangeable between products
• Proven AC Electric Motorpump (P/N 974540)
• Proven reliability
•
•
Guaranteed reliability (18,000 hour MTBUR)
Proven field reliability (> 80,000 hour MTBUR)
• Hose exchange is required to convert from other market available pump product to Eaton
product
• Airbus Aircraft SB is required for the operator to convert.
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P/N 3031863-001 (Model: PV3-240-10D)
Engine driven hydraulic pump (EDP)
• Integral transfer tube between housing and adapter
• High pressure is controlled across parting line
• Timing optimized to reduce internal wear
• Proven rotating group
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Eaton PV3-240-10D Improvements
PV3-240-10D
Consists of:
•
Improved MTBF
•
Reduced component wear
•
Yoke / Actuator piston
•
Yoke / Pintle bearings
•
Yoke / Spring guide
•
Reduced control circuit pressure pulsations 9%–
50%
•
Reduced yoke moment oscillations/variation
29%–50%
•
Optimized the outlet pressure pulsations
P/N 3031863-001
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Airbus A320
Current EDP cost reductions
P/N 3031863-001
•
All product improvements
are incorporated into the
production configuration –
to help ensure high
reliability.
•
Incorporation of the
Polyimide Vespel® Coupling
Shaft Adapter available for
aftermarket customers
only.
PV3-240-10D
Spring Pin
Coupling
Shaft
Polyimide Vespel®
Coupling Shaft Adapter
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P/N 3031863-001 (Model: PV3-240-10D)
Engine driven hydraulic pump (EDP)
Typical Application - Airbus A320 EDP Performance Characteristics
• Inline pump with a transfer tube from housing to adapter, ductile iron cylinder block,
coupling shaft with Vespel® muff available.
• Displacement (in3/rev)
2.40
• Rated speed (rpm)
3700
• Rated pressure (psi)
3025
• Max Intmt speed (rpm)
5500
• Min flow (gpm)
37.0 @ 3700 rpm
• Rated inlet temperature C°(F)
71 (160)
• Dry weight kg (lbs)
14.6 (32.2)
• Wet weight kg (lbs)
14.8 (32.7)
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P/N 3031863-001 - flow schematic
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P/N 3031863-001 Reliability Trend
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Benefits of the Eaton EDP
• Highly Reliable
• Low inlet capability (3 psia)
• Reduced noise levels
• Robust proven component designs
• Reduced erosion
• Ductile iron cylinder block designs
• Low vibration
• Increased fatigue strength
• Very stable at all required flows
• Weight reduction
and temperatures
• Compact envelope size
• Easy maintenance
• Rotating components are proven on
many applications
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P/N 974540, Model: MPEV3-032-15
AC Electric Motor pump (ACMP)
• MPEV3-032-15 incorporates lessons learned from
initial ACMP (MPEV3-032-10B) and provides excellent
reliability.
• Motor & pump on single shaft to reduce
maintenance cost.
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AC Electric Motor pump (ACMP)
Application – Airbus A320 Platform
• Description
• Electric Motorpump Model MPEV3-032-15
• Part Number
• 974540
• Platform
• A320
• QPA - 2
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Application – Airbus A320 Hydraulic System
•
Yellow system –
ground
support/maintenance
operations.
•
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Blue system –
continuously
running
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Application – A330/340 Platform
• Description
• Electric Motorpump Model MPEV3-032-15
• Part Number
• 974540
• Platform
• A330
•
QPA - 3
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Application – Airbus A330 Hydraulic System
•
ACMP used
for Ground
Support
Operations.
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Manufacturing Status
• This product is supplied from Bedhampton
• Production volumes continue to increase
• Current production rate 1,400 units/year
• Circa 12,000 + Electric Motorpumps in service
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Product Evolution
• Part No 974540, MPEV3-032-15
• Replaces Part No 693335, MPEV3-032-10B
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Product Evolution
• Design Objectives
• Develop a Next Generation Electric Motorpump
• Multiple platform solution
• Simplified integrated design – fewer parts
• Significant reliability improvement
• More efficient / robust electric motor
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P/N 974540, Model: MPEV3-032-15
AC Electric Motor pump (ACMP)
Application - Airbus A320 ACMP
• Proven variable displacement inline pump integrated into the electric motor drive shaft
to reduce cost and improve reliability.
• Displacement (in3/rev)
0.263
• Rated Speed (rpm)
7600
• Rated Pressure (psi)
3000
• Flow (gpm)
8.5 @ 2175 rpm
• Rated inlet temperature C°(F)
71 (160)
• Dry Weight kg (lbs)
14.5 (31.98)
• Wet Weight kg (lbs)
14.7 (32.50)
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P/N 974540 (MPEV3-032-15) – Flow schematic
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Design Attributes - Optimised Timing •
Pump Timing ensures that the
pump outlet pressure matches
the A/C system pressure on
discharge.
•
Reduced Pressure pulsations.
•
Less fatigue on the pump & the
A/C system.
•
Eliminates the need for an
external attenuator.
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Design Attributes - Weight Saving
•
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Reduction in piece parts reduces weight.
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Design Attributes - Reduced Spline Count
•
Design has one piece
combined rotor & drive
shaft.
•
Old Design has separate
coupling shaft due to
separate motor.
•
Raising risk on spline
wear.
•
This design reduces
maintenance costs and
reduces parts, hence
greater reliability.
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Design Attributes - Single Shaft Seal
•
Single shaft seal,
old design had two,
supports greater
reliability.
•
Reduced piece part
count.
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Design Attributes - Reduced Bearing Count
• Reduction in bearings from
four to two.
• Again supporting the
greater reliability.
• Old design with two shafts
– required four bearings
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Design Attributes
- Improved Cooling Efficiency
• Most efficient way to
reduce heat in the
pump is with hydraulic
fluid.
• This design pushes
fluid through the rotor
around the outside
helix, and back
through the shaft
drawing heat away
from the EMP.
• Hottest component in
the pump is the rotor
on the shaft.
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Design Attributes
- Lower Operating Temperature
• Lower operating
temperatures achieved
with motor material
selection.
• Significant benefit is the
improved bearing life.
• The greased packed in
the bearing is protected
due to the lower
temperature.
• Improved tail rotor
bearing life.
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P/N 974540 reliability trend
Based on Operator reported MTBUR/Removals for MPEV3-032-10B/15 A320 family.
160,000
140,000
120,000
100,000
80,000
60,000
40,000
20,000
0
2011
2012
Fleet_MTBF
2013
2014
Fleet_MTBUR
2015
IDIOL MTBUR A320
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2016
2017
2018
GMTBUR
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Eaton value solution
Customer requirement
Eaton solution
Cost reduction
Pricing incentives available for retrofit kits.
Increased reliability
Reliability inherent in the design
Customer support
Dedicated CSRM/TSRM with immediate support
All inclusive service
Material, Labor and Repair
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Questions/Comments
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Reminder!
Don’t forget to sign in to the sessions using the mobile app &
take the survey at the end of each session
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