Results 181 to 190 of about 1,453 (244)

Experimental investigation on a diesel engine using waste cooking oil biodiesel-alcohol-diesel ternary blends with Al₂O₃ nanoparticles. [PDF]

Sci Rep
Sudarsanam M, Jayaprabakar J, Rao YKSS, Venu H, Thirugnanasambandam A, Yadav AS, Alam T, Sharma A, Ansu AK.   +8 more
europepmc   +1 more source

Physical principles and mechanisms of cell migration. [PDF]

NPJ Biol Phys Mech
Alonso-Matilla R, Provenzano PP, Odde DJ.   +2 more
europepmc   +1 more source

Corrosion behavior of Fe amorphous/Al-12Si piston composites with core-shell structure. [PDF]

Sci Rep
Wang Y, Lin Z, Liu C, Zhao D, Li C, Wang Y.   +5 more
europepmc   +1 more source

Performance investigation of an active free-piston Stirling engine using artificial neural network and firefly optimization algorithm. [PDF]

Heliyon
Masoumi AP, Tavakolpour-Saleh AR, Bagherian V.   +2 more
europepmc   +1 more source

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Precise piston trajectory control for a free piston engine

Control Engineering Practice, 2015
Abstract A free piston engine removes the mechanical constraint on the piston motion by eliminating the crankshaft. The extra degree of freedom offers many advantages for reducing fuel consumption and emissions. Nevertheless, stability and robustness of the engine operation has been affected in the meantime.
Chen Zhang, Zongxuan Sun, Ke Li
exaly   +2 more sources

Constraint enforcement of piston motion in a free-piston engine

2014 American Control Conference, 2014
Precise control of piston turnaround location is essential for reliable free-piston engine (FPE) operation. In this paper we derive a discrete-time, control-oriented, implicit model that describes FPE clearance height behavior by applying an energy balance to the Otto cycle.
Kevin Zaseck, Matthew Brusstar, Ilya V. Kolmanovsky   +2 more
openaire   +1 more source

Hybrid simulation of a free piston engine

Proceedings of the April 26-28, 1966, Spring joint computer conference on XX - AFIPS '66 (Spring), 1966
The free piston engine principle is one which has intrigued mechanical engineers for decades. Indeed, the original gas engine of Otto and Langden employed a piston assembly which did not contain the now conventional connecting rod and camshaft arrangement and hence may be considered as an early implementation of the free piston principle.
R. E. Gagne, E. J. Wright
openaire   +1 more source

Motion control of a hydraulic free-piston engine

2012 American Control Conference (ACC), 2012
Free-piston engine (FPE), as an alternative of the conventional internal combustion engine, has a high potential in terms of energy saving given its wide range of potential applications and high efficiency. One of the technical barriers that prevents the wide spread of this technology is the lack of precise piston motion control.
Ke Li, Ali Sadighi, Zongxuan Sun
openaire   +1 more source

Hydraulic free piston engine — Challenge for control

1999 European Control Conference (ECC), 1999
A hydraulic free piston engine, HFPE, combines a diesel engine and a hydraulic pump into one compact component. In practical view there is only one linearly moving part in the HFPE, the piston assembly, which contains combustion and hydraulic pistons and piston rod.
Researcher Seppo Tikkanen, Matti Vilenius   +1 more
openaire   +1 more source

Design of a Free-Piston Engine-Pump

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">Off-highway mining and construction equipment typically converts all the power output of the engine to hydraulic power, with this power then used to perform the earth-moving operations, and also to propel the vehicle. This equipment presents significant opportunities for a new type of powerplant designed to deliver
Norman H. Beachley, Frank J. Fronczak
openaire   +1 more source