Download or read book Liquid Lubricants for Advanced Aircraft Engines written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of liquid lubricants for use in current and projected high performance turbojet engines is discussed. Chemical and physical properties are reviewed with special emphasis placed on the oxidation and thermal stability requirements imposed upon the lubrication system. A brief history is given of the development of turbine engine lubricants which led to the present day synthetic oils with their inherent modification advantages. The status and state of development of some eleven candidate classes of fluids for use in advanced turbine engines are discussed. Published examples of fundamental studies to obtain a better understanding of the chemistry involved in fluid degradation are reviewed. Alternatives to high temperature fluid development are described. The importance of continuing work on improving current high temperature lubricant candidates and encouraging development of new and improved fluid base stocks are discussed. Loomis, William R. and Fusaro, Robert L. Glenn Research Center RTOP 505-63-5A...

Download or read book Liquid Lubricants for Advanced Aircraft Engines written by and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lubricants for Inerted Lubrication Systems in Engines for Advanced Aircraft written by William R. Loomis and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feasibility tests on liquid lubricants for inerted lubrication systems of advanced aircraft engines.

Download or read book Lubricants for Inerted Lubrication Systems in Engines for Advanced Aircraft written by William R. Loomis and published by . This book was released on 1968 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Lubricants for Aircraft Turbine Engines written by Society of Automotive Engineers, Inc and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Temperature Liquid Lubricant Requirements for Advanced High Performance Gas Turbine Engines written by Guiliano Pezzella and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Program f r Diakonikurserna vid Ersta 8 11 juni 1911 written by and published by . This book was released on 1911 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Lubricants on Turbine Engine Design written by I. E. Sumey and published by . This book was released on 1970 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although ester-base lubricants have best met the requirements of gas turbine engines to date, growth in upper temperature capability seems limited. Plans have been to stress development of MIL-L-27502, a 450F ester-class lubricant. Other chemical types of lubricants exist with much higher temperature capability such as polyphenyl ether and perfluoro-carbon types. But these fluids exhibit poor low temperature pumpability characteristics and have other disadvantages relative to esters. The question arises as to how and to what degree these lubricants or any other advanced lubricants may influence turbine engine design. A study was conducted to determine to what extent hypothetical lubricant properties affect the design of gas turbine engines. The program showed that elevation of bulk oil stability temperature capability has the greatest single impact of any of the several properties studied, and therefore supports the direction taken by MIL-L-27502. A balanced effort on other lubricant properties and supporting materials and design technology must be maintained however, to prepare for the advanced aircraft for the next decade, if lubricants other than esters are to be exploited. (Author).

Download or read book Advanced High Temperature Air Force Turbine Engine Oil Program written by CE. Snyder and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military and commercial jet aircraft engines operate hotter than in the past to increase fuel efficiency. Also, advanced structural engine materials permit hotter burning, more efficient engines. These trends are expected to continue. Many current gas turbine engines experience oil system coking and other problems related to the limited thermal and oxidative stability of the conventional, ester-based gas turbine engine oils. This is because most engines operate on gas turbine oils limited to 150°C. The best current oils have a maximum operating temperature of about 200°C. We initiated a program to develop a new class of ester-based lubricants to meet current and future high-temperature requirements. The target temperature range of this new oil is -40°C to 232°C. Target requirements were established and communicated to industry. This paper presents those requirements and initial results on the most promising candidates.

Download or read book NASA Scientific and Technical Reports and Publications for 1969 A Selected Listing written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1970 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book NASA Technical Paper written by and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Technology 1997 written by and published by DIANE Publishing. This book was released on 1998 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Airbreathing Engine Lubricants with a Tetraester Fluid and a Synthetic Paraffinic Oil at 492 K 425 F written by Erwin V. Zaretsky and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbine Lubrication in the 21st Century written by William R. Herguth and published by ASTM International. This book was released on 2001 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains eight papers from a June 2000 symposium held in Seattle, Washington, reporting on research related to the lubrication requirements of turbines used for power generation. Papers reflect two general trends in the field: the production of more stable lubricants, and the development of improved

Download or read book Handbook of Lubrication and Tribology written by Robert W. Bruce and published by CRC Press. This book was released on 2012-07-06 with total page 1173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the best-selling first edition, the growing price and environmental cost of energy have increased the significance of tribology. Handbook of Lubrication and Tribology, Volume II: Theory and Design, Second Edition demonstrates how the principles of tribology can address cost savings, energy conservation, and environmental protection. This second edition provides a thorough treatment of established knowledge and practices, along with detailed references for further study. Written by the foremost experts in the field, the book is divided into four sections. The first reviews the basic principles of tribology, wear mechanisms, and modes of lubrication. The second section covers the full range of lubricants/coolants, including mineral oil, synthetic fluids, and water-based fluids. In the third section, the contributors describe many wear- and friction-reducing materials and treatments, which are currently the fastest growing areas of tribology, with announcements of new coatings, better performance, and new vendors being made every month. The final section presents components, equipment, and designs commonly found in tribological systems. It also examines specific industrial areas and their processes. Sponsored by the Society of Tribologists and Lubrication Engineers, this handbook incorporates up-to-date, peer-reviewed information for tackling tribological problems and improving lubricants and tribological systems. The book shows how the proper use of generally accepted tribological practices can save money, conserve energy, and protect the environment.