Free Newsletter
Register for our Free Newsletters
Newsletter
Zones
Airport, Border and Port Safety and Security
Left Nav Sep
Bioterrorism
Left Nav Sep
Civil Aircraft
Left Nav Sep
Civil Airlines, Airports and Services
Left Nav Sep
Communications and Navigation
Left Nav Sep
Education, Training and Professional Services
Left Nav Sep
Manufacturing and Materials
Left Nav Sep
Military and Defence Facilities
Left Nav Sep
Military Aviation
Left Nav Sep
Military Vehicles
Left Nav Sep
Naval Systems
Left Nav Sep
Personal Equipment
Left Nav Sep
Software and IT Services
Left Nav Sep
Space and Satellite
Left Nav Sep
Weapons, Ammunition and Explosives
Left Nav Sep
View All
Other Carouselweb publications
Carousel Web
Defense File Logo
New Material Logo
Pro Health Service Zone
Pro Manufacturing Zone
Prosecurity Zone
Web Lec Logo
Pro Engineering Zone
 
 
 
News

Better Engineering - Cleaning For US Army Helicopter Engines


Strict Standards: Only variables should be passed by reference in /home/defensef/public_html/components/com_zone/handleHTML.php on line 623
Better Engineering
: 19 June, 2007  (Company News)
Application
Helicopter turbine blades and misc Helicopter parts (shroud supports, cooling plates, discs, nozzle segments, shroud segments)

Background

This Army Depot is responsible for the maintenance and refurbishment of six (6) premier types of helicopters such as: Scahawk, Black Hawk, Chinook, Apache, Super Cobra, and Huey. At specified intervals, all helicopters are directed to this depot where they are disassembled. The T-700 series engines are then sent to a GG-Rotor Shop for repair. Before leaving, all the rebuilt parts need to be thoroughly cleaned. They were previously using perchloroethylene, a hazardous chemical, in a vapor degreaser. This method of cleaning was mandated to change in the interest of pollution prevention.

Problem

The GG-Rotor shop is cleaning serpentine, radially cooled 'HPT' blades as well as various miscellaneous Helicopter engine parts. The 'HPT' blades are peppered with tiny EDM holes and they eventually wear down from air friction and have to be rebuilt. Metal is added, the ends are re-contoured, and EDM holes are re-cut. After being rebuilt, the parts have to be cleaned - EDM slag removed, dielectric fluid removed, etc. All Helicopter parts needed to be cleaned in one machine due to budgetary restraints.

Solution

Design a dual purpose machine to flush nineteen (19) of each size blade simultaneously in the top section and utilize the bottom turntable to clean various other Helicopter parts. The 'HPT' blades are put inside a pressurized 'box' with the 'root' end of the blades sliding into a UHMW strip. Solution from the wash tank is forced into the lower chamber of the box. The water is then forced into the root holes of the blades, up through the central cavity, and out the EDM holes at the top. Using heated compressed air, the blades are then dried. The unit is also designed to accommodate several different base adapters to clean various sized blades.

The bottom turntable allows for the cleaning of all other Helicopter parts such as: shroud supports, cooling plates, discs, nozzle segments, and shroud segments.
Bookmark and Share
 
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
 
   © 2012 DefenseFile.com
Netgains Logo