The paper presents a theoretical and experimental analysis of sealless pistons featuring a special geometry capable of eliminating friction in pneumatic cylinders and valves. Three different piston geometries were investigated: tapered, stepped and slot-pocket. Performance was evaluated for each geometry in terms of pressure distribution, leakage flow rate, and the self-centering force on the piston. The piston configuration which provides the best tradeoff between self-centering thrust and leakage flow rate in the air gap was also determined. The theoretical and experimental results obtained with the different piston designs were then compared.
Analysis, design and comparison of different types of pistons for sealless pneumatic cylinders and valves / BELFORTE G.; RAPARELLI T.; MAZZA L.; TRIVELLA A.. - In: TRIBOLOGY TRANSACTIONS. - ISSN 1040-2004. - STAMPA. - 48(2005), pp. 377-388. [10.1080/05698190591008577]
|Titolo:||Analysis, design and comparison of different types of pistons for sealless pneumatic cylinders and valves|
|Data di pubblicazione:||2005|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1080/05698190591008577|
|Appare nelle tipologie:||1.1 Articolo in rivista|