Results 21 to 30 of about 3,898,800 (181)

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

Development and performance measurements of a 2.5 kW-class free-piston stirling converter with detailed design and fabrication processes

open access: yesEnergy Reports, 2022
This study presents the development and performance measurement of a 2.5 kW class free-piston Stirling engine with detailed design and fabrication processes, considering flexure spring stiffness effects on the engine dynamics and performance.
Dong-Jun Kim, Jong-Su Park, Kyuho Sim
doaj   +1 more source

Influence of Pressure Build-Up Time of Compression Chamber on Improving the Operation Frequency of a Single-Piston Hydraulic Free-Piston Engine

open access: yesAdvances 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
doaj   +1 more source

Free-Piston Engine Design and Evaluation with Different Compression Ratios [PDF]

open access: yesINCAS Bulletin, 2021
Free-piston heat engines are being examined by a number of international research groups as an option for conservative technology, as they are not limited by the movement of the crankshaft as in conventional engines.
B. KIRUBADURAI   +2 more
doaj   +1 more source

An optimization of free-piston engine generator combustion using variable piston motion

open access: yesAdvances 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
doaj   +1 more source

Simulation model “free-piston engine – electromechatronic converter on the basis of an electrical generator reciprocating”

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
The analysis of the state and prospects of development of autonomous electric power sources with electric reciprocating motion generators has shown that at present, low-power systems “free-piston engine – electromechanotron сonverter based on an electric
A. B. Menzhinsky, A. N. Malashin
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

A review of free piston engine control literature—Taxonomy and techniques

open access: yesAlexandria Engineering Journal, 2022
The free piston engine linear generator (FPELG) is a simple structure engine with only two main parts, i.e., the linear generator and a free piston engine, which has less friction, low emission, high thermal efficiency, and multi-fuel engine.
Ahmed T. Raheem   +4 more
doaj   +1 more source

Research on starting process and control strategy of opposed-piston free-piston engine generator _ Simulation and test results

open access: yesEnergy Reports, 2021
The operation process of free-piston engine generator (FPEG) can be divided into starting process and power generation process, and each of them faces severe challenges especially for the opposed-piston FPEG.
Limin Wu   +5 more
doaj   +1 more source

METHODS OF STRUCTURAL AND PARAMETRIC SYNTHESIS OF COMBINED GENERATOR OF RECIPROCATING POWER PLANTS FOR ROBOTIC SYSTEMS ON THE BASIS OF A FREE PISTON ENGINE

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
Power supply system of advanced robotic systems requires the development of electromechanical energy converters with high energy and minimum weight and overall dimensions. In this regard, a free piston engine with an electric generator is considered as a
A. B. Menzhinsky, A. N. Malashin
doaj   +1 more source

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