Results 11 to 20 of about 107,395 (302)
Effect of Nonlinear Spring Characteristics on the Efficiency of Free-Piston Engine Generator
Energies, 2022 Piston motion is an important factor in improving the energy conversion efficiency of free-piston engine generators (FPEGs), and an air cylinder is an important component affecting piston motion.
Shoma Irie +4 more
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Stirling Engine and oil-free compressors [PDF]
E3S Web of Conferences, 2021 Refering to figure 1 [Fig.1], an oscillating « flipper » piston (1) and its associated chamber (2) are maintained without reciprocal contact. No oil is required because there is no contact and so no friction.
Raballand Thierry
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Development of Hydrogen-Free Diamond-Like Carbon Coating for Piston Rings
Tribology Online, 2017 The first piston ring application of a hydrogen-free diamond-like carbon (H-free DLC) coating to a mass-production gasoline engine reduces friction. It is found that the friction reduction effect between the cylinder bore and piston is 18%.
Tsuyoshi Higuchi +4 more
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Machines, 2022 The oil-free lubrication seal of a piston rod plays an important role in the application of a Stirling engine. Parallel offset in a piston rod ruins the symmetry of the seal and affects the sealing performance when the seal is worn.
Wenhan Cao +5 more
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Free-Piston Stirling Engine Technologies and Models: A Review
Energies, 2021 The Stirling engine is an alternative solution to produce cleaner energy in order to achieve the reduction of the fossil fuel consumption and the CO2 emissions.
Carmela Perozziello +2 more
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Numerical investigation of the real and ideal gap profiles in the calculation of the pressure distortion coefficient and piston fall rate of an LNE 200 MPa pressure balance [PDF]
, 2013 This paper aims to investigate, by means of numerical simulation, the effect of gap profiles on the calculation of the pressure distortion coefficient (λ) and the piston fall rate (vf) of two piston-cylinder units used in a Laboratoire National de ...
NOGUERA, Ricardo +3 more
core +5 more sources
Advances in Mechanical Engineering, 2013 A single-piston hydraulic free-piston engine with a two-cylinder four-stroke diesel engine as its driver is introduced. It takes the free-piston assembly a certain time to move after the pressure in the compression chamber starts to increase.
Hai-bo Xie +3 more
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Design considerations of a linear generator for a range extender application
Archives of Electrical Engineering, 2015 The free piston linear generator is a new range extender concept for the application in a full electric vehicle. The free piston engine driven linear generators can achieve high efficiency at part and full load which is suitable for the range extender ...
Seo Un-Jae +3 more
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Case Studies in Thermal Engineering, 2020 In this research we have formulated a model using the mechanical-acoustical method and we have constructed an experimental apparatus to investigate the performance of the free piston pulse tube engine.
Alexander I. Dovgyallo +2 more
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An optimization of free-piston engine generator combustion using variable piston motion
Advances in Mechanical Engineering, 2017 The free-piston engine generator has been a research focus lately due to its crankless structure and unconstrained piston motion, which brings about some weaknesses for the combustion process.
Jing Xu +3 more
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