Results 161 to 170 of about 476 (185)

Examination of a free-piston engine linear generator system with generation control for high efficiency

2017 11th International Symposium on Linear Drives for Industry Applications (LDIA), 2017
A free-piston engine linear generator system is investigated for use as a high-efficiency generator engine. The system's efficiency depends on its generation and thermal efficiency, and the generation efficiency is degraded at the edge of the expansion stroke when the piston speed is low and the thrust is high.
M. Sato, M. Nirei, Y. Yamanaka, H. Murata, Y. Bu, T. Mizuno   +5 more
openaire   +1 more source

A Tubular PM Linear Generator With a Coreless Moving-Coil for Free-Piston Engines

IEEE Transactions on Energy Conversion, 2019
Free-piston engine coupled with linear generator is a new kind of thermoelectric energy converter. It has been highly concerned due to its high efficiency and low emission in recent years. In this paper, a tubular moving-coil linear generator is developed for the application of free-piston engines. The two-dimensional finite-element model of the linear
Lijie Yang, Zhaoping Xu, Liang Liu, Nianpeng Liu, Houliang Yu   +4 more
openaire   +1 more source

Examination of a Free-piston Engine Linear Generator System with Opposite-side Combustion

2019 12th International Symposium on Linear Drives for Industry Applications (LDIA), 2019
A Free-Piston Engine Linear Generator System is expected to be applied to a hybrid car. Previous studies have presented a one-sided FPEG that uses a combustion chamber and an air spring chamber. However, loss of the air spring chamber has been observed.
Tatsuki Suzuki, Kaname Naganuma, Masami Nirei, Yuichiro Yamanaka, Takumi Goto, Mitsuhide Sato, Yinggang Bu, Tsutomu Mizuno   +7 more
openaire   +1 more source

Research on control strategy of free-piston stirling-engine linear-generator system

2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014
The free-piston Stirling-engine linear-generator system can make efficient use of multiple energy resources, so it has great application potential in the fields of aeronautics and astronautics including space station, human lunar exploration, space vehicle, etc.
Ping Zheng, Bin Yu, Shaohong Zhu, Quanrong Gong, Jiaqi Liu   +4 more
openaire   +1 more source

Research on the generation performances of a free-piston engine linear generator based on numerical models and experimental results

Applied Thermal Engineering
Chendong Guo, Huihua Feng
exaly   +2 more sources

Examination of Miniaturization Using a Double Stator for a Free-Piston Engine Linear Generator System

2018 21st International Conference on Electrical Machines and Systems (ICEMS), 2018
A free-piston engine linear generator (FPEG) system is a linear generator, which generates electricity when a free piston reciprocates the combustion thrust produced by internal combustion. It is expected that this system can be applied to hybrid vehicles. In this paper, we propose a cylindrical double stator linear synchronous generator to exclude the
Yuichiro Yamanaka, Takumi Goto, Tsutomu Mizuno, Masami Nirei, Tatsuki Suzuki, Mitsuhide Sato, Yinggang Bu   +6 more
openaire   +1 more source

Experimental study on the power generation characteristics of a free piston engine generator prototype with dual linear generator modules

Energy
Zhengxing Zuo, , Yidi Wei
exaly   +2 more sources

Starting of a free-piston linear engine-generator by mechanical resonance and rectangular current commutation

2008 IEEE Vehicle Power and Propulsion Conference, 2008
Starting a free-piston linear engine-generator (LG) involves reciprocating a freely moving piston-magnet-translator assembly between two oppositely placed engine cylinders for combustion to occur. The machine is operated as a brushless linear motor to produce the required motion.
Saiful A. Zulkifli, Mohd N. Karsiti, A. Rashid A. Aziz   +2 more
openaire   +1 more source

State Estimation Algorithm Based on a Disturbance Observer for a Free-Piston Engine Linear Generator

Journal of Dynamic Systems, Measurement, and Control, 2016
In order to realize a thin, compact, efficient, and fuel-flexible power-generation system, we have been developing and investigating a free-piston engine linear generator (FPEG), which consists of a two-stroke combustion chamber and an adjustable gas spring chamber. This paper proposes a novel observer algorithm that has two advantages.
Shigeaki Goto, Kazunari Moriya, Hidemasa Kosaka, Tomoyuki Akita, Yoshihiro Hotta, Kiyomi Nakakita   +5 more
openaire   +1 more source

Development of Free Piston Engine Linear Generator System Part 2 - Investigation of Control System for Generator

SAE Technical Paper Series, 2014
<div class="section abstract"><div class="htmlview paragraph">Free Piston Engine linear Generator (FPEG) that is thin and compact and has high efficiency and high fuel flexibility has been developed. The developed FPEG consists of a two-stroke combustion chamber, a linear generator, and a gas spring chamber.</div><div class ...
Shigeaki Goto, Kaznunari Moriya, Hidemasa Kosaka, Tomoyuki Akita, Yoshihiro Hotta, Takaji Umeno, Kiyomi Nakakita   +6 more
openaire   +1 more source