Results 191 to 200 of about 1,449 (242)

A Review of Free Piston Engine Concepts

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">In free piston engines, the stroke of the piston is used directly to produce hydraulic, pneumatic or electric energy. This can be done with a single piston in one combustion chamber, or with more pistons in one or more combustion chambers.
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THE AUTOMOTIVE FREE-PISTON-TURBINE ENGINE

SAE Technical Paper Series, 1957
<div class="section abstract"><div class="htmlview paragraph">THIS paper discusses the free-piston engine which is being investigated by Ford.</div><div class="htmlview paragraph">The analytic method for calculating free-piston-gasifier thermodynamic performance over the complete operating range is discussed for the given ...
Donald N. Frey, Paul Klotsch, Adolph Egli   +2 more
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FORD FREE-PISTON ENGINE DEVELOPMENT

SAE Technical Paper Series, 1959
<div class="section abstract"><div class="htmlview paragraph">THE Free-Piston Engine Program described in this paper was concerned with determining thermodynamic relationships of small, high-speed engines. The purpose was to establish proper engine geometry and mechanical design which could then be applied to developing larger automotive ...
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Horsepower with Brains: The Design of the CHIRON Free Piston Engine

SAE Technical Paper Series, 2000
<div class="htmlview paragraph">The C<span class="small-caps">HIRON</span> is a hydraulic free piston engine developed by the Dutch companies NOAX and Innas. In the C<span class="small-caps">HIRON</span> the energy of the combustion process is almost directly converted into hydraulic energy. The C<span class="small-caps"
Achten, P.A.J., Oever, van den, J.P.J., Potma, J., Vael, G.E.M.   +3 more
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Development of an In-Cylinder Pressure Observer for Free-Piston Engines

2018 IEEE Conference on Control Technology and Applications (CCTA), 2018
Reconstruction of engine in-cylinder pressure with observers in conventional engines has extensively been studied in the literature. The subject however remains unaddressed for Free-piston Engines (FPEs). An in-cylinder pressure observer suitable for FPEs is developed in this paper.
Tom N. Kigezi, Julian F. Dunne
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Large Free-Piston Stirling Engines

1985
The word ‘large’ applied to Stirling engines means different things to different people. An engine having a 3 kW output would be large to those working on artificial hearts or cryocoolers for electronic applications. It would be small, negligibly so, to those interested in locomotive propulsion.
Graham Walker, J. R. Senft
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Constraint enforcement of piston motion in a free-piston engine

2014 American Control Conference, 2014
Precise control of piston turnaround location is essential for reliable free-piston engine (FPE) operation. In this paper we derive a discrete-time, control-oriented, implicit model that describes FPE clearance height behavior by applying an energy balance to the Otto cycle.
Kevin Zaseck, Matthew Brusstar, Ilya V. Kolmanovsky   +2 more
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Dynamic Behaviour Prediction Of Free-piston Stirling Engines

Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005
The paper presents an integrated methodology for both the design optimization and the performance evaluation of free-piston Stirling engines (FPSE) suitable for space applications. In particular, the prediction of the dynamic behaviour is the problem here considered in more detail.
BENVENUTO G, DE MONTE, FILIPPO, FARINA F.   +2 more
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Control-based design of free-piston stirling engines

2008 American Control Conference, 2008
A control-based analysis and characterization of a free-piston Stirling engine is presented, and proposed as a lightweight power supply for untethered robots. Typically, such devices are designed from the point of view of a thermodynamic cycle in terms of traditional thermodynamic equations of state.
Jose A. Riofrio, Khalid Al-Dakkan, Mark E. Hofacker, Eric J. Barth   +3 more
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Modeling and predictive control of Free Piston Engine Generator

2015 American Control Conference (ACC), 2015
This paper focuses on the modeling and control of a Free Piston Engine Generator (FPEG) which is an alternative to conventional internal combustion engines to be used as an auxiliary power unit (APU) in hybrid electric vehicles (HEV). A physics-based, continuous-time model and a discrete-time, control-oriented model are derived.
Xun Gong 0007, Kevin Zaseck, Ilya V. Kolmanovsky, Hong Chen 0003   +3 more
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