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Modelling of a free piston problem
2006We give a qualitative analysis of the free boundary value problem which models the motion of a piston. A basic role is played by a third-order operator, whose properties are used for solving preliminary problems. The differential equations are transformed into a nonlinear Volterra system, which is dealt with by the fixed point theorem.
Bernardino D’Acunto, Anna Maria Monte
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Aeronautical Quarterly, 1966
SummaryA study of shock tube operation with free-piston compression of the driver gas is presented. It is shown theoretically and experimentally that shock Mach numbers exceeding 30 in air may be obtained with an apparatus of moderate size. The operating limitations imposed by the maximum pressures allowed in the apparatus, by the ratio of the volume ...
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SummaryA study of shock tube operation with free-piston compression of the driver gas is presented. It is shown theoretically and experimentally that shock Mach numbers exceeding 30 in air may be obtained with an apparatus of moderate size. The operating limitations imposed by the maximum pressures allowed in the apparatus, by the ratio of the volume ...
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SUPERCHARGING in the FREE-PISTON CYCLE
SAE Technical Paper Series, 1959<div class="section abstract"><div class="htmlview paragraph">THE RESULTS of analytical studies backed by actual tests concerning the use of supercharging in the free-piston cycle are reviewed. They indicate that, under conditions of increased cycle pressure ratio and of adequate cooling of the air, supercharging has power possibilities far
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Dynamic Characteristics of a Free Piston Compressor
Fluid Power Systems and Technology, 2004The design and dynamic characterization of a free piston compressor is presented in this paper. The free piston compressor is a proposed device that utilizes combustion to compress air into a high-pressure supply tank. The device is configured such that the transduction from thermal energy to stored energy, in the form of compressed gas, is efficient ...
Eric J. Barth, Jose Riofrio
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Modeling and Control of Free-Piston Generator
IFAC Proceedings Volumes, 2004Abstract This paper describes modeling and control of a Free-Piston Generator (FPG). A FPG is a special type of combustion engine representing a new approach concerning the conversion of the chemical energy of hydrocarbon fuel into electrical energy.
Němeček Pavel +2 more
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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 +2 more
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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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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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Advances in free-piston internal combustion engines: A comprehensive review
Applied Thermal Engineering, 2021Zhengxing Zuo +2 more
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