Combustion characteristics analysis of hydraulic free piston diesel engine

Zhang, Shuanlu; Zhao, Changlu; Zhao, Zhenfeng; Ma, Fukang

doi:10.1016/j.apenergy.2015.06.054

Cited by 13 publications

(2 citation statements)

References 22 publications

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“…Zhang et al adopts three ports to the compression chamber. During the last period of the expansion stroke, the larger port is blocked by the FPA and the oil flows out to the accumulator through the smaller port to realise the cushion [7]. Brusstar et al employed the pinion and rack mechanism to keep the synchronous movement of the two FPAs.…”

Section: Introductionmentioning

confidence: 99%

Design and optimisation of cushioning structure of hydraulic free‐piston engine

Chen

Ren

Lin

et al. 2018

J. eng.

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Section: Introductionmentioning

confidence: 99%

Design and optimisation of cushioning structure of hydraulic free‐piston engine

Chen

Ren

Lin

et al. 2018

J. eng.

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“…The configurations of the FPLG prototypes can be generally classified into single-cylinder, dual-piston and the opposed-piston types [4], which have been widely studied by many groups worldwide [6][7][8][9][10][11][12][13]. The development status of these prototypes indicates that the single-cylinder FPLG has advantages of a simple structure and easy system control, and thereby is intensively studied [14,15].…”

Section: Introductionmentioning

confidence: 99%

Hybrid System Modeling and Full Cycle Operation Analysis of a Two-Stroke Free-Piston Linear Generator

et al. 2017

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Free-piston linear generators (FPLGs) have attractive application prospects for hybrid electric vehicles (HEVs) owing to their high-efficiency, low-emissions and multi-fuel flexibility. In order to achieve long-term stable operation, the hybrid system design and full-cycle operation strategy are essential factors that should be considered. A 25 kW FPLG consisting of an internal combustion engine (ICE), a linear electric machine (LEM) and a gas spring (GS) is designed. To improve the power density and generating efficiency, the LEM is assembled with two modular flat-type double-sided PM LEM units, which sandwich a common moving-magnet plate supported by a middle keel beam and bilateral slide guide rails to enhance the stiffness of the moving plate. For the convenience of operation processes analysis, the coupling hybrid system is modeled mathematically and a full cycle simulation model is established. Top-level systemic control strategies including the starting, stable operating, fault recovering and stopping strategies are analyzed and discussed. The analysis results validate that the system can run stably and robustly with the proposed full cycle operation strategy. The effective electric output power can reach 26.36 kW with an overall system efficiency of 36.32%.

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