Results 1 to 10 of about 107,285 (194)

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

Micromachines, 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, Haiyang Liu, Haitang Cen, Jiang Liu, Huaqiang Li, Gang Xu   +5 more
doaj   +2 more sources

Quantitative comparison of the operating characteristics and engine performances of typical configurations of free-piston engine linear generator [PDF]

Scientific Reports
Due to their unique operating characteristics and high thermal efficiencies, free-piston engine linear generator (FPELG) has attracted research interest in recent years, thanks to the crankshaft absence.
Chendong Guo, Yahui Wang, Liang Tong, Hailong Deng, Huihua Feng   +4 more
doaj   +2 more sources

Resonance Stirling Engine producing heat and power (CHP) [PDF]

E3S Web of Conferences, 2021
The free-piston Resonance Stirling engine forms a new “electricity producing heating system”. Its compact assembly operates reliably and at high efficiency, setting new standards for small heating systems.
Schmid R., Budliger J.P.
doaj   +1 more source

Numerical Investigation on NOx Emission of a Hydrogen-Fuelled Dual-Cylinder Free-Piston Engine

Applied Sciences, 2023
The free-piston engine is a type of none-crank engine that could be operated under variable compression ratio, and this provides it flexible fuel applicability and low engine emission potential.
Chengqian Li, Yaodong Wang, Boru Jia, Zhiyuan Zhang, Anthony Roskilly   +4 more
doaj   +1 more source

Simulation investigates on operation characteristics of free piston internal combustion generator

Advances in Mechanical Engineering, 2023
To study the influence of the free piston generator structure on its stable operation, this paper chose the combining mathematical and physical methods to build a simulation model to investigate the influence factors.
Meng Yubo, Huang Yuchun, Ma Haishu, Dong Yunfu, Li Long   +4 more
doaj   +1 more source

Water Vapor Blending Ratio Effects on Combustion Thermal Performance and Emission of Hydrogen Homogeneous Charge Compression Ignition

Energies, 2022
A numerical model of the micro-free-piston engine was developed and its correctness was verified by the comparison between the simulation and referential experiment results under the same work conditions. Based on this numerical model, the effects of the
Wenhua Yuan, Xueliang Huang, Jun Fu, Yi Ma, Guangming Li, Qike Huang   +5 more
doaj   +1 more source

Research on the Operating Characteristics of Hydraulic Free-Piston Engines: A Systematic Review and Meta-Analysis

Energies, 2021
The hydraulic free-piston engine (HFPE) is a kind of hybrid-powered machine which combines the reciprocating piston-type internal combustion engine and the plunger pump as a whole.
Fukang Ma, Shuanlu Zhang, Zhenfeng Zhao, Yifang Wang   +3 more
doaj   +1 more source

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

Heliyon, 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, Ramesh Babu Nallamothu, Venkata Ramayya Ancha, Bisrat Yoseph   +3 more
doaj   +1 more source

FREE-PISTON COMPRESSOR-ENGINES [PDF]

Nature, 1947
The Pescara free-piston engine has been developed in France during the last twenty years, and the paper gives a description of a portable air compressor which has been proved in commercial work, and is now in production. An explanation is given of those characteristics in which this engine differs from the orthodox engine-driven crankshaft compressor.
openaire   +2 more sources

Research on Piston Dynamics and Engine Performances of a Free-Piston Engine Linear Generator Coupling with Various Rebound Devices

Energies, 2023
Free-piston engine linear generators (FPELGs) are an innovative linear power device that exhibits the distinctive dynamics of pistons and performance of free-piston engines.
Chendong Guo, Yahui Wang, Liang Tong, Huihua Feng, Zhengxing Zuo, Boru Jia   +5 more
doaj   +1 more source