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, Guido; Raparelli, Terenziano; Mazza, Luigi; Trivella, Andrea. - In: TRIBOLOGY TRANSACTIONS. - ISSN 1040-2004. - STAMPA. - 48:(2005), pp. 377-388. [10.1080/05698190591008577]

Analysis, design and comparison of different types of pistons for sealless pneumatic cylinders and valves

BELFORTE, GUIDO;RAPARELLI, TERENZIANO;MAZZA, Luigi;TRIVELLA, ANDREA
2005

Abstract

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.
File in questo prodotto:
File Dimensione Formato  
articolo_STLE_2005.pdf

non disponibili

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 1.95 MB
Formato Adobe PDF
1.95 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1397039
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo