Indeed, the engine industries have seen a tremendous growth in the research and
development of new-age technologies over the past ten years or so. Even though a huge …

A HFPE (hydraulic free-piston engine) has been proposed by the SKLE (State Key Library of
Engines) in Tianjin University as a mean to significantly improving the IC (Internal …

As an alternative to conventional engines, free-piston engine generator (FPEG) is a
promising power generation system due to its simplicity and high thermal efficiency. One …

We studied a two-stroke free piston linear engine by numerical models and simulation. The
numerical models consisted of three parts: dynamic model, linear alternator model, and …

The free-piston engine generator (FPEG) is a novel type of energy conversion device; it
integrates a two stroke combustion engine and a linear electric machine into a single unit …

The hydraulic free-piston engine is a hybrid of a hydraulic plunger pump and a free-piston
engine. This paper presents a semi-analytical method for the hydraulic free-piston engine …

This paper deals with the investigation of a linear generator used in an internal combustion
engine. The introduction reviews the state of the art of free-piston linear generators. Then …

Conventional crank-based engines are limited by mechanical, thermal, and combustion
inefficiencies. The free piston of a linear engine generator reduces frictional losses by …

The piston motion of HFPE (hydraulic free-piston engine) was determined by the forces
acting on the mover rather than on the crankshaft. This makes the complex interaction …

This research aims to obtain the piston ring tribological characteristics of a free-piston
engine. Mathematical models of piston ring seal and lubrication were established based on …