Influence of Pressure Build-Up Time of Compression Chamber on Improving the Operation Frequency of a Single-Piston Hydraulic Free-Piston Engine | Zendy

Haibo Xie | Zendy; Haoling Ren | Zendy; Huayong Yang | Zendy; Jianfei Guo | Zendy

Open Access

Influence of Pressure Build-Up Time of Compression Chamber on Improving the Operation Frequency of a Single-Piston Hydraulic Free-Piston Engine

Author(s) -

Haibo Xie,

Haoling Ren,

Huayong Yang,

Jianfei Guo

Publication year - 2013

Publication title -

advances in mechanical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 40

eISSN - 1687-8140

pISSN - 1687-8132

DOI - 10.1155/2013/406807

Subject(s) - piston (optics) , four stroke engine , position sensing hydraulic cylinder , cylinder , mechanical engineering , compression (physics) , compression ratio , piston pump , hydraulic cylinder , diesel engine , pneumatic cylinder , stroke (engine) , radial piston pump , engineering , automotive engineering , materials science , combustion chamber , physics , internal combustion engine , variable displacement pump , chemistry , combustion , organic chemistry , wavefront , optics , composite material

A single-piston hydraulic free-piston engine with a two-cylinder four-stroke diesel engine as its driver is introduced. It takes the free-piston assembly a certain time to move after the pressure in the compression chamber starts to increase. The time difference between the pressure increasing and the piston starting to move is defined as the pressure build-up time. The characteristics of the pressure build-up time and its influence on the performance of the free-piston engine are introduced and analyzed. Based on the basic law of dynamics of the free-piston assembly, the parameters which influence the pressure build-up time are analyzed. And then improvement and optimization are proposed to shorten the pressure build-up time

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