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Design approach for single piston hydraulic free piston diesel engines

Frontiers of Mechanical Engineering in China, 2009
The operating characteristics of a single piston hydraulic free piston diesel engine differ significantly from conventional diesel engines and this provides a theoretical basis for controlling and optimizing the design of the engine. The design of the proposed engine intended as a power supply for a hydraulic propulsion vehicle is presented.
Wei Wu, Shihua Yuan, Jibin Hu, Chongbo Jing +3 more
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Effect of Piston Motion on Combustion of CNG Free Piston Engine (FPE)

Advanced Materials Research, 2014
CNG is thought to be one of the most promising alternatives to traditional fuels. The multi-fuel ability is another characteristic of the FPE. The piston motion can be controlled to have beneficial effects on the engine performance. This article investigates the effect of piston motion on combustion of four-stroke CNG FPE using a multidimensional ...
Ning Xia Yin +3 more
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Piston Rings Friction Comparison in a Free Piston and Conventional Crankshaft Engines

Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, 2018
The conventional internal combustion engines driven by crankshafts and connecting rod mechanisms are restrained by combustion, thermal and mechanical inefficiencies. The Oscillating Free Piston Linear Engine Alternator (OFPLEA) produces electric power with no need to modify the reciprocating motion to rotary motion.
Mehar Bade +3 more
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Free Piston Stirling Engines

1985
Graham Walker, J. R. Senft
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The Development of a small Free Piston Engine