Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Application of a Powder Lubrication System to a Gas Turbine Engine. Pt. 2
Author: Application of a Powder Lubrication System to a Gas Turbine Engine
Author: Stanley WallersteinApplication of a Powder Lubrication System to a Gas Turbine Engine
Author: Stanley WallersteinPublisher:
ISBN:
Category : Bearings (Machinery)
Languages : en
Pages : 67
Book Description
The objective of this program is to provide a powder lubrication system for the J-69 turbine engine. This report discusses the tests made on the engine ball and roller bearings using a powder lubricant consisting of graphite and cadmium oxide in lieu of conventional lubricant. (Author).
Application of a Powder Lubrication System to a Gas Turbine Engine
Author: Stanley WallersteinPublisher:
ISBN:
Category : Bearings (Machinery)
Languages : en
Pages : 104
Book Description
The objective of the program is to provide a powder lubrication system for a gas turbine engine. The report discusses experimental development testing of powder lubricated bearings, tested both in a specially designed bearing test rig and in a J-69 turbojet engine, modified for unfired operation with powder lubrication on a motor-driven test stand. The report summarizes the equipment, instrumentation, and experimental work carried on to attain quantitative and performance data on engine bearings as well as the powder lubrication delivery and exhaust system.
Application of a Powder Lubrication System to a Gas Turbine Engine
Author: Stanley WallersteinPublisher:
ISBN:
Category : Bearings (Machinery)
Languages : en
Pages : 140
Book Description
The feasibility of adapting a powder lubrication system for the lubrication of the main shaft bearings of an unfired J-69 gas turbine engine was established, in lieu of the oil lubrication system used in the standard engine. Ball and roller bearings have been successfully lubricated with powder- lubrication in a J-69 unfired gas turbine engine. Ball bearings have been successfully operated for periods of 35 hours with powder lubricants. Thrust load tests to 500 pounds at 8000 rpm were conducted. Testing with a 100 pound thrust load to 20,000 rpm with heated (bleed air temperature) carrier air was successfully performed on two different bearing designs. Both bearings were deep groove, split inner design with a one piece outer ring guided retainer made of silverplated AMS6415 steel; one bearing had inner and outer races and balls of M-50 vacuum melt tool steel; the other the inner and outer races and balls of 440CM modified corrosion resistant steel. Roller bearings have performed successfully through a speed range of 8,000 to 20,000 rpm at stabilized operating temperatures of 515F, simulating estimated operating conditions. The bearing had inner ring guided rollers and an outer ring guided retainer. Rings and rollers were of M-50 vacuum melt tool steel and the retainer was Monel S. The lubricant used for all the evaluations was a powder mixture consisting of five parts of micronized Acheson No. 38 graphite plus one part of laboratory-grade cadmium oxide entrained in an air carrier. The optimum lubricant powder flow for ball bearing operation under thrust loaded conditions is about 0.015 grams per minute.
Technical Abstract Bulletin
Author: Lubrication Systems for Aircraft Gas Turbine Engines
Author: Ion StiharuPublisher: Wiley-Blackwell
ISBN: 9781119979654
Category :
Languages : en
Pages : 350
Book Description
Lubrication Systems for Aircraft Gas Turbine Engines presents a systematic approach to the lubrication systems of generic aircraft gas turbine engines. This topic requires a dedicated approach due to the constraints and requirements imposed by the propulsion system that include high sustained operating temperatures and speeds, mass constraints for the lubrication system and its ancillary components required for heat management,, filtering and sealing of the lubricant. These requirements are not discussed in tribology texts and the solution to such problems is often non-tribology related but heat transfer or two-phase flow related. The editors have collated vital research and methodology, and present the problems as well as current and potential future solutions to these problems in a systematic and consistent manner. The book is organized into eleven chapters covering the subject of lubrication in GTEs from systems to components. Advanced methods and tools used to evaluate the performance of lubrication systems are also introduced. Lubrication Systems for Aircraft Gas Turbine Engines is addressed to researchers and graduate students who are interested in lubrication aspects related to aircraft GTEs as well as lubrication problems and solutions in general. It also represents an excellent reference for practicing engineers who work in lubrication systems and components from design to test and maintenance.
Scientific and Technical Aerospace Reports
Author: Government-wide Index to Federal Research & Development Reports
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 892
Book Description
Lubricants for Inerted Lubrication Systems in Engines for Advanced Aircraft
Author: William R. LoomisPublisher:
ISBN:
Category : Aircraft gas-turbines
Languages : en
Pages : 28
Book Description
Feasibility tests on liquid lubricants for inerted lubrication systems of advanced aircraft engines.