A review of free-piston engine history and applications

Mikalsen, R.; Roskilly, Anthony Paul

doi:10.1016/j.applthermaleng.2007.03.015

Cited by 400 publications

(219 citation statements)

References 27 publications

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“…Fig. 1 shows that efforts of a century by the researchers to save the energy or use new types of energy systems in vehicle manufacturing to achieve a more sustainable society (Mikalsen and Roskilly 2007, Colares 2008, Deal III 2010, Høyer 2008, Andújar and Segura 2009. However, these new technologies have been applied to agroforestry machinery behind of automobiles.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Motor Powered Agricultural Tractors Based on Physical and Mechanical Properties of Energy Sources

Jing

Noguchi

Ahamed

2018

Agricultural Information Research

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The alternate power utilization instead of Internal Combustion Engine (ICE) in an agricultural tractor (AT) was studied by simulation approach for the drivelines of electric battery (EB), fuel cell (FC) and reformed methanol fuel cell (RMFC). The working hours were considered 4 with comparison of weight, volume, soil pressure, and fuel efficiency. In weight comparison, 12% overweight in FC-AT, 16% overweight in RMFC-AT, and 99% overweight of EB-AT were observed for the rated output power of light duty tractor (17.25 kW). Less than 5% overweight of FC-AT and RMFC-AT, and 39%-62% overweight of EB-AT were observed for rated output power of medium and heavy-duty tractor (33.75-75.00 kW). Soil pressure in the root-growing block was observed less than 130 kPa for EB-AT, FC-AT, RMFC-AT in the rated output power from 17.25-75.00 kW. In all the alternatives, ±5% fluctuations in the volume were observed. In the design stage, we proposed, that FC-AT was the best alternative considering weight, volume, and soil pressure. Furthermore, the analytical software AVL Cruise ® was used for vehicle drive line system to find out how weight affects the performance for 75.00 kW EB-AT. The analysis was designed for 4 working hours with full load at 20 km/h of velocity using AVL Cruise ® . The peak velocity was found less than 14.1 km/h, and constant working time was only 3 hours, because of the severe overweight by EB storage.

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Section: Introductionmentioning

confidence: 99%

Feasibility Study of Motor Powered Agricultural Tractors Based on Physical and Mechanical Properties of Energy Sources

Jing

Noguchi

Ahamed

2018

Agricultural Information Research

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“…Wang proposes an active suspension system, which is suitable for both conventional and novel electric vehicles [3,4]. Moreover, linear motor is also applied in free piston engine [5]. Above all, improving output performance of linear motors depends on both structure design optimization and on output evaluation system.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation Analysis of Linear Loading System Based on Axial-Magnetized Voice-Coil Motor

Zhang¹,

Yan²

2017

Proceedings of the 2017 2nd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2017)

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Abstract-As an important branch of linear motors, linear oscillating motor with high frequency provides reciprocating motion within short-stroke, which shows high efficiency, large power density and convenient maintenance, and has an important application value in electric vehicles, aviation and medical field. However, recent researches mostly focus on the structure design of linear motors and control strategies, rarely on its loading system. Traditional loading methods such as magnetic powder brake and weight loading cannot satisfy its special motion pattern and high frequency response requirement. For solving this problem, this paper designs an axial-magnetized voice-coil motor as the force loading system, effectively realizing various types of loading force simulation, such as spring, viscosity and hydraulic square wave force, which provides an effective solution and experimental means for the comprehensive analysis of linear oscillating motor performance.

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“…The Hydraulic Free Piston Engine (HFPE) has similar function as engine-pump system and higher efficiency. But HFPE is far from practical application for some technical bottlenecks [2][3][4]. So the structural principle of Hydraulic Confined Piston Engine (HCPE) was put forward, which integrates nearly all the merits of engine-pump system and HFPE.…”

Section: Introductionmentioning

confidence: 99%

Simulation Method of Hydraulic Confined Piston Engine

Jiao¹,

Xu²

2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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Abstract. Hydraulic Confined Piston Engine (HCPE) is a new type power device especially suitable for hydrostatic driving vehicle. Its working process is influenced by complex coupling of liquid, solid and gas. Its working process simulation is the basis of later performance evaluation and design optimization. The structural principle of HCPE is described. The iteration method with stationary point is defined, and its whole operation process is discussed by way of output pressure computation as an example. Through simulation, the fluctuation of the angular speed of crankshaft coincides with the working process; the water pressure in cylinder has great instantaneous pulsation and phase step as outlet valve opening and inlet valve closing.

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A review of free-piston engine history and applications

Cited by 400 publications

References 27 publications

Feasibility Study of Motor Powered Agricultural Tractors Based on Physical and Mechanical Properties of Energy Sources

Feasibility Study of Motor Powered Agricultural Tractors Based on Physical and Mechanical Properties of Energy Sources

Design and Simulation Analysis of Linear Loading System Based on Axial-Magnetized Voice-Coil Motor

Simulation Method of Hydraulic Confined Piston Engine

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