2014•Advanced materials researchOpen access

Simulation Research on the Basic Performance of a Single Piston Hydraulic Free-Piston Engine

Shi Yu Li, Zhao Cheng Yuan, Jia Yi, Qing Zhu

Abstract

Hydraulic free-piston engine is a compact machine which is composed of a conventional engine and a hydraulic pump. Compared to the conventional technology, the free piston engine has many potential advantages. In this paper, a simulation model for a single piston hydraulic free-piston engine (SPHFPE) is described, and the differences in motion characteristics between the free-piston engine and the conventional engine are presented. And varying piston mass and starting pressures have an impact on the motion characteristics of the free-piston engine.

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Available abstract

Key concepts: Piston (optics), Radial piston pump, Position-sensing hydraulic cylinder, Hydraulic motor, Axial piston pump, Mechanical engineering, Piston pump, Four-stroke engine