A Numerical Study of a Compressed Air Engine with Rotating Cylinders

This article explores the possibility that, during the elimination of conventional combustion engines, the connecting rod becomes deflected. A larger connecting rod angle creates higher lateral pressure on the piston, also leading to greater loads on other engine components. This fact inspired us to...

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Bibliographic Details
Published inApplied sciences Vol. 11; no. 16; p. 7504
Main Authors Dižo, Ján, Blatnický, Miroslav, Sága, Milan, Šťastniak, Pavol
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2021
Subjects
analysis and design
Combustion
Compressed air
compressed air engine
Connecting rods
Design
Diesel engines
Emissions
Engine components
Equations of motion
Kinematics
Lateral pressure
Mathematical models
Multibody systems
non-conventional engine
numerical simulation
Pneumatic motors
Rotating cylinders
Vehicles
Waveforms
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Summary:This article explores the possibility that, during the elimination of conventional combustion engines, the connecting rod becomes deflected. A larger connecting rod angle creates higher lateral pressure on the piston, also leading to greater loads on other engine components. This fact inspired us to develop an applied mechanism design that reduces the disadvantages of conventional combustion engines. The presented mathematical model that describes the designed engine working principle was created utilizing Lagrange’s equations of motion of the second kind and solved in MATLAB. This paper also includes a multibody simulation model of the engine mechanism created using the Simpack software. Based on a comparison of the two methods, the obtained waveforms of the selected kinematic quantities were found to yield minimal deviations. A real prototype was subsequently developed based on the mathematical model outputs. In this manner, we practically verified that the proposed theoretical solution for a non-conventional engine is fully functional.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11167504