Results 11 to 20 of about 2,661 (278)

Free-piston engine-and-hydraulic pump for railway vehicles

open access: yesNauka ta progres transportu, 2013
Purpose. The development of the free-piston diesel engine-and-hydraulic pump for the continuously variable hydrostatical transmission of mobile power vehicles. Methodology.
A. F. Golovchuk, K. V. Prikhodko
doaj   +3 more sources

Tribological Characteristics of Piston Ring in a Free-piston Engine for Linear Generator

open access: yesEnergy Procedia, 2014
AbstractThis research aims to obtain the piston ring tribological characteristics of a free-piston engine. Mathematical models of piston ring seal and lubrication were established based on thermodynamic equation and hydrodynamic lubrication equation.
Yuan, Chenheng   +3 more
openaire   +2 more sources

Numerical study of different shape design of piston bowl for diesel engine combustion in a light duty single-cylinder engine

open access: yesHeliyon, 2022
Diesel engine is the prime mover on land transportation industry and used in a variety of power generation applications due to their higher fuel efficiency.
Habtamu Deresso   +3 more
doaj   +1 more source

Investigation of a piston mass impact on the pulse tube engine performance using analytical and experimental methods

open access: yesCase 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
doaj   +1 more source

Numerical Investigation of a Free-Piston Hydrogen-Gasoline Engine Linear Generator

open access: yesEnergies, 2020
The free-piston engine linear generator (FPELG) is being investigated by many researchers because of its high thermal efficiency and its variable compression ratio. However, all researchers focused on the FPELG characteristics with mono-fuel.
Ziwei Zhang, Huihua Feng, Zhengxing Zuo
doaj   +1 more source

Active vibration control for a Free Piston Stirling Engine generator using a voice coil actuator [PDF]

open access: yes, 2015
This work presents the study of active vibration control for a FPSE/ LA engine to ensure a reliable engine operation within a broader range of operation frequencies [50 ± 3 Hz] complying with new regulations.
Torres Perez, Angel; id_orcid   +6 more
core   +1 more source

Development of Hydrogen-Free Diamond-Like Carbon Coating for Piston Rings

open access: yesTribology 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
doaj   +1 more source

Study on Leakage Effect Factors of Two-Stroke Micro Free Piston Swing Engine

open access: yesMicromachines, 2022
The two-stroke micro free piston swing engine (MFPSE) is a portable power device. Its seal performance plays an important role in the dynamic properties and efficiency of microengines.
Shujing Miao   +5 more
doaj   +1 more source

Theoretical limits of scaling-down internal combustion engines [PDF]

open access: yes, 2010
Small-scale energy conversion devices are being developed for a variety of applications; these include propulsion units for micro aerial vehicles (MAV). The high specific energy of hydrocarbon and hydrogen fuels, as compared to other energy storing means,
Sher, E., Sher, Ilai, I. Sher, E. Sher
core   +1 more source

Parametric Simulations on Leakage and Performance of a Miniature Free-Piston Generator (MFPG)

open access: yesApplied Sciences, 2021
The miniaturization of electrical equipment and popularization of portable devices is an appealing motivation for the development of small-scale heat engines. However, the in-cylinder charge leaks severely as the engine dimension shrinks. The free-piston
Saifei Zhang   +5 more
doaj   +1 more source

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