Powerplant PW4000 TM
-
Upload
le-viet-dung -
Category
Documents
-
view
406 -
download
11
Transcript of Powerplant PW4000 TM
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 1/21
This document is the property of United Technologies Corporation (UTC). You may not possess, use, copy or disclose this document or any information
in it, for any purpose, including without limitation to design, manufacture or repair parts, or obtain FAA or other government approval to do so, without
UTC’s express written permission. Neither receipt nor possession of this document alone, from any source, constitutes such pe rmission. Possession,
use, copying or disclosure by anyone without UTC’s express written permission is not authorized and may result in criminal an d/ or civil liability.
Pratt & Whitney ProprietaryNLR under ECCN 9E991
PW4000-100
A330/A340 Symposium
Berlin, 2 June 2010
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 2/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 2
Advantage70TM
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 3/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 3
Advantage70TM Now In Service
• Supports new A330 aircraft applications
– Increased thrust provides improvedpayload capability
– A330-200 Freighter launch
– Increased Max Take-Off Gross Weight
(MTOGW) PAX version (238T)• Improves customer value
– Reduced fuel consumption 1%
– Lowers CO2 emissions
–Reduced maintenance cost 10-15%
– Improvement kits for existing engines
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 4/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 4
Ring style HPC case stages 8-15 Improved rear support
Improved Rear Drum (70K)
HPT 1ST Vane &
TOBIw / reduced area LPT 3B & 3V
HPT 1st &2nd BOAS
LPT ShaftSteel (70k)
Redesigned NoseCone Spinner Seal
Externals:
SCN10A software
Data Entry Plugs
Secondary Flow(TCA & Thrust
Balance)
TALONBurner
Redesigned6th Disk (70k)
Enhancements:
• Performance improvements• Durability improvement• 70K capability
1B Coating
TCA Turbine Cooling Air
70k Sea Level Thrust
PW4170 Engine Configuration
Nacelle:
Improved Hinges
HPT T1 & T2 DiskMaterial (70K)
Conversion via SB PW4G-100-72-220
HPC AirfoilPolishing
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 5/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 5
Wing –to –Wing interchangeability with today’s engine
• Advantage70TM and today’s configured engines can be flown on opposite
aircraft engine positions with equivalent thrust rating (i.e., PW4168A-1D
and PW4168A)
• PW4168A-1D certified (Refer to Airbus SB 72-3019)
• PW4170 certification in process
• PW4164-1D and PW4168-1D certification pending
• For new production A330 PW4170 powered aircraft
• In case of lack of spare PW4170 engine: PW4168A-1D or PW4168A
intermix permitted by Airbus SB A330-71-3023
Advantage70TM – Rating Summary
Aircraft Model Engine Models Allowed
A330-321 PW4164 (PW4164-1D pending)
A330-322 PW4168 (PW4168-1D pending)
A330-323 PW4168A, PW4168A-1D
A330-323 Enhanced PW4168A, PW4168A-1D, PW4170
A330-223 PW4168A, PW4168A-1D, PW4170
A330-223F PW4170
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 6/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 6
High Pressure Turbine (HPT)
2nd Stage Vanes (2TV)
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 7/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 7
Root Cause Investigation Identified CoatingDegradation Leads to TMF Cracking
Service Experience:
• Improved 2TV configuration (Post SB PW4G-100-72-206) exhibit leading edge andpressure side distress
• May result in earlier than predicted engineremovals
Root Cause:
• Coating spallation attributed to Calcium,
Magnesium, Aluminum, Silica (CMAS) attack• Thermal Mechanical Fatigue (TMF) initiated
cracks in parent material occur after coatingspallation
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 8/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 8
CMAS Breaks Down Coating Leads to TMF Cracking
• CMAS is a powderized sand that travels in a cloud formation
– Found around/near desert areas
– Reaches altitudes of 30K feet
• CMAS is ingested through the engine gaspath
– Deposits adhere to the 2nd vane airfoil surface
– Due to operational temperatures of the 2nd vane, deposits liquefy andembed into the grain structure of the Thermal Barrier Coating (TBC)
– After engine cool down, deposits solidify within the coating grainstructure
– Multiple iterations of heating and cooling causes TBC coating
spallation
• Spallation of the TBC coating exposes base material to gaspathtemperatures which causes TMF cracking on the vane airfoil
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 9/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 9
Borescope Inspection Recommended
Vane Coating Re-Design Evaluation Underway
Fleet Management Plan fo r Improved 2TV(Pos t SB PW4G-100-72-206):
• Borescope inspection per SB PW4G-100-72-228
– Threshold inspection of 2000 cycles since new (CSN)
Correct ive Ac t ion:
• CMAS resistant coating schemes being evaluated
– Technical decision will be made October 2010
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 10/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 10
Hydraulic Case & Drain Filter Assembly
Delta Pressure Indicator (DPI)
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 11/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 11
Hydraulic Differential Pressure Indicator (DPI)Redesigned to Eliminate False Indications
Problem:
• The hydraulic Differential PressureIndicator has experienced false actuation
resulting in unnecessary filter check and
replacement
Root Cause:
• Pressure spikes in the hydraulic systemhave been identified as the main
contributor to faulty indications of clogged
filters
Correct ive Act ion :
• DPI redesigned to increase minimumsurge delay and allow longer duration
maximum surge delay
• Fire Shield required with new DPI
– SB PW4G-100-29-8 issued Feb 2010
Fire Shields
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 12/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 12
Engine Oil Leaks, Consumption
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 13/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 13
Problem:
• Unplanned Engine Removals (UER’s) due to front end oil bearing compartment leaks and fumes-in-
cabin• Historically, observed “front-end wetting” is not a cause for removal unless, a fumes event was reported, or
High Oil Consumption (HOC) is above limits in Trouble Shooting Manual (TSM)
Recent Findings Indicate Front End Bearing
Compartments Contribute to Leaks / Fumes
#1.5/#2F (Intershaft) Seal
•Upstream Pressure: 9th stage HPC
•Piston Ring secondary seal
#2R Carbon Seal
•Upstream Pressure: 4th stage LPC#1 Carbon Seal
•Upstream Pressure: 4th stage LPC
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 14/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 14
Root Cause Investigation Activity Planned 2010
Root Cause:• Continue investigations of front end bearing compartment hardware
• P&W teams participated in on-site shop investigations of fumes-in-cabin
engines
• Compartment hardware returned to P&W for investigation
• Compare fumes vs. non-fumes hardware, back-to-back comparison – Recent event hardware in inspection process
– Inspect “non-event” hardware
– Re-inspect previously investigated hardware
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 15/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 15
Root Cause Investigation Activity Planned 2010
Root Cause (Cont’d):
• Repair Parts Evaluation (carbon seals & seal plates), including: – Conducted on-site audit of repair facilities - completed
– Evaluate blueprint vs. repair manual requirements - completed
– Confirm repair vendor correct interpretation of technical data – working
– Complete CIR evaluation & provide updated requirements (if required) –
Target Date June 2010
• Model Operational Carbon Seal Delta-P’s – target completion July2010 – Evaluate steady-state and transient operation, assess sensitivity of #1 and #2R
seals
• Provide Recommendations – Target Date 3rd Qtr 2010
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 16/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 16
Starter Air Valve (SAV)
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 17/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 17
Manual Wrench Shaft (MWS) Wear Causes Valve
BindingArea #1 External; MWS
Retention Plate Interface
Area #2 Internal; MWS
Pinion and Rack
Interface
Background: • Starter Air Valve PN 52U602
(HS PN 1001000-3) with less
then 9000 hours exhibit wear
between the manual wrench
shaft and the associated
retaining plate
• Results in D&C’s due to NoStart or potential No Manual
Override
Root Cause:• Manual wrenching shaft wears
shaft retaining plate due toaxial vibration
• Spring notch acts as a detent
contributing to valve binding
along with gear tooth wear and
bushing wear
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 18/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 18
18
Redesign Op t ions Under Evaluat ion
Corrective Action:
• Proposed Corrective actions down selected from multiple redesign
options:
– Concept #1 - Combine original MWS with torsion spring from 808884-5
SAV and new one piece rack 1001000-3 part (hybrid)
– Concept #2 – Short Pinion
• Planned activity to evaluate concepts before launching qualificationtest on the selected configuration
– Conduct a back to back response comparison
– Conduct back to back risk reduction fixture vibration testing
– Conduct back to back accelerated vibration durability testing
• Based on analysis & testing
– Define Corrective action – Target Date 4th Quarter 2010
• Service Bulletin release will be defined upon selection of corrective
action
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 19/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 1919
Concept #1 - Combine original MWS with torsion spring from808884-5 SAV and new one piece rack 1001000-3 part (hybrid)
– Position indication achieved same as present and past design.
– Maintains the non-articulated rack coupling to piston as in current design.
Reintroduce torsion springOne piece rack
Preliminary Re-Design Concepts Under Review
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 20/21
Click to edit Master subtitle style
August 09
Pratt & Whitney Proprietary:subject to restrictions on first page
page 2020
Preliminary Re-Design Concepts Under Review
Concept #2 – Short Pinion
– Special too not required to turn MWS
– Uses standard wrench extension
8/18/2019 Powerplant PW4000 TM
http://slidepdf.com/reader/full/powerplant-pw4000-tm 21/21
Click to edit Master subtitle style
Pratt & Whitney Proprietary: page 21
This document is the property of United Technologies Corporation (UTC). You may not possess, use, copy, or disclose this document
or any information in it, for any purpose, including without limitation to design, manufacture, or repair parts, or to obtain FAA or other
government approval to do so, without UTC’s express written permission. Neither receipt nor possession of this document alone, from
any source, constitutes such permission. Possession, use, copying, or disclosure by anyone without UTC’s express permission is not
authorized and may result in criminal and/or civil liability.
Dependable Engines, Services and People