Results 1 to 10 of about 1,435 (236)
Free-Piston Stirling Engine Technologies and Models: A Review [PDF]
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
doaj +4 more sources
Quantitative comparison of the operating characteristics and engine performances of typical configurations of free-piston engine linear generator [PDF]
Scientific ReportsDue 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 +4 more
doaj +2 more sources
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 +4 more
doaj +1 more source
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
doaj +1 more source
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 +3 more
doaj +1 more source
Free-piston diesel engine dynamics and control [PDF]
Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001 Free-piston diesel engines are characterized by freely moving pistons without any rigid crankshaft or camshaft connected to the pistons. This allows a highly compact and efficient engine design, but requires automatic control of the piston motion. This paper present a dynamic mathematical model of a free-piston diesel engine, a control oriented dynamic
Tor Arne Johansen +3 more
openaire +1 more source
IEEE Access, 2020 Opposed-piston free-piston engine generator (FPEG), as an energy conversion device, has attracted the attention of researchers with its advantages of variable compression ratio (CR) and good dynamic balance performance.
Jinkang Lu, Zhaoping Xu, Liang Liu
doaj +1 more source
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 +5 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
Effects of Injector Spray Angle on Performance of an Opposed-Piston Free-Piston Engine
Energies, 2020 A free-piston engine is a novel internal combustion engine which has the advantages of a variable compression ratio and multi-fuel adaptability. This paper focuses on numerical simulation for combustion process and spray angle optimization of an opposed ...
Qinglin Zhang +3 more
doaj +1 more source