Design of a Hydraulic Motor System Driven by Compressed Air

Dein Shaw, Jyun-Jhe Yu and Cheng Chieh
Additional contact information
Dein Shaw: Department of Power Mechanical Engineering, National Tsing-Hua University, Hsin-Chu City 30013, Taiwan
Jyun-Jhe Yu: Department of Power Mechanical Engineering, National Tsing-Hua University, Hsin-Chu City 30013, Taiwan
Cheng Chieh: Department of Power Mechanical Engineering, National Tsing-Hua University, Hsin-Chu City 30013, Taiwan

Energies, 2013, vol. 6, issue 7, 1-18

Abstract: This paper presents the design of a highly efficient pneumatic motor system. The air engine is currently the most generally used device to convert potential energy of compressed air into mechanical energy. However, the efficiency of the air engines is too low to provide sufficient operating range for the vehicle. In this study, the energy contained in compressed air/pressurized hydraulic oil is transformed by a hydraulic motor to mechanical energy to enhance the efficiency of using air power. To evaluate the theoretical efficiency, the principle of balance of energy is applied. The theoretical efficiency of converting air into hydraulic energy is found to be a function of pressure; thus, the maximum converting efficiency can be determined. To confirm the theoretical evaluation, a prototype of the pneumatic hydraulic system is built. The experiment verifies that the theoretical evaluation of the system efficiency is reasonable, and that the layout of the system is determined by the results of theoretical evaluation.

Keywords: air engine; pneumatic engine; hydraulic motor; efficiency; air car engine design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/1996-1073/6/7/3149/pdf (application/pdf)
https://www.mdpi.com/1996-1073/6/7/3149/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:6:y:2013:i:7:p:3149-3166:d:26763

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().