Results 201 to 210 of about 3,568 (253)
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Evolution of Small Turboshaft Engines
SAE Technical Paper Series, 1972<div class="htmlview paragraph">There is an ever increasing interest in the small, under 1000 hp, turboshaft engine for use as aircraft propulsion powerplants. This paper discusses the historical evolution of these powerplants, their current state-of-the-art, and their future potential.
Max Bentele, Justin J. Laborde
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Turboshaft engine air particle separation
Progress in Aerospace Sciences, 2010This contribution addresses air particle separation technologies (EAPS) used for helicopter turboshaft engines that operate around unprepared airfields. Three key technologies are discussed. These are: vortex tube separators, inertial particle separators and inlet barrier filters.
Filippone, Antonio, Bojdo, Nicholas
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Contingency power for small turboshaft engines
Journal of Propulsion and Power, 1989Power augmentation for multi-engine rotorcraft is of critical interest. But relying on overtemperature at the turbine inlet to meet this requirement will shorten turbine life unless a method of limiting thermal and mechanical stresses is found. A possible solution that was investigated involves allowing the turbine inlet temperature to rise to augment ...
Thomas J. Biesiadny +3 more
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Heat Pipe Cooling of Turboshaft Engines
Volume 3A: General, 1993Reduction in turbine engine cooling flows is required to meet the IHPTET Phase II engine performance levels. Heat pipes, which are devices with very high thermal conductance, can help reduce the required cooling air. A survey was conducted to identify potential applications for heat pipes in turboshaft engines. The applications for heat pipe cooling of
William G. Anderson +4 more
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Reverse-Flow Turboshaft Engine Study
1970Abstract : The report presents the results of a program conducted to investigate the characteristics of a three-spool turboshaft engine having an unconventional turbine arrangement. In this engine, called a three-spool reverse-flow turboshaft engine, the combusted air passes through the high pressure (HP) turbine, then the power turbine, and finally ...
W. H. Duncan, K. M. Johansen
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Turboshaft Engine Predesign and Performance Assessment
48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012A rotorcraft assessment platform (CREATION) is currently developed at Onera. The final objective is to quantify the impact of the introduction of new technologies on the rotorcraft performance. The paper presents the selection process and the predesign of the turboshaft engine with three levels of details.
Stephane Burguburu, Pierre-Marie Basset
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Aircraft Engineering and Aerospace Technology, 1972
THE RS.360 was conceived in the mid 60's as a turboshaft engine, for helicopter application and operation in the 1970's. It is one of three engines in the Anglo‐French Helicopter Agreement ratified in 1967. This agreement covered three helicopters — a medium, the SNIAS Puma with Turmo IIIC4 engines, a SNIAS LOH Gazelle with Astazou IIIN and a utility ...
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THE RS.360 was conceived in the mid 60's as a turboshaft engine, for helicopter application and operation in the 1970's. It is one of three engines in the Anglo‐French Helicopter Agreement ratified in 1967. This agreement covered three helicopters — a medium, the SNIAS Puma with Turmo IIIC4 engines, a SNIAS LOH Gazelle with Astazou IIIN and a utility ...
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Turboprop and Turboshaft Engines
2012The turboprop and turboshaft are gas turbine engine variants that exploit the availability of high shaft power to deliver the thrust required for a number of flight applications in the subsonic regime. The use of a free power turbine allows for more operational flexibility in rotating the propeller or main rotor at the desired rate.
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RDE Integration with T63 Turboshaft Engine Components
52nd Aerospace Sciences Meeting, 2014American Institute of Aeronautics and Astronautics This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited. Disclaimer: The views expressed in this presentation are those of the authors and do not reflect the official policy or ...
Daniel J. Welsh +3 more
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Performance Development of the Gem Turboshaft Engine
Journal of Engineering for Power, 1976The Gem turboshaft engine designed specifically for helicopter application has provided challenges both in performance development and analytical techniques. A number of the more interesting component performance problems are discussed in this paper, together with the analysis techniques developed to meet the requirement for consistent and accurate ...
A. B. McKenzie, B. T. Bayne
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