The experiments and characteristic analysis of the sealless cylinder

Dong-Soo Kim; Sang-Kyu Bae

doi:10.1117/12.664813

2 May 2006 The experiments and characteristic analysis of the sealless cylinder

Dong-Soo Kim, Sang-Kyu Bae

Proceedings Volume 6042, ICMIT 2005: Control Systems and Robotics; 60424G (2006) https://doi.org/10.1117/12.664813
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

Because the general cylinders use sliding seal, The cause the high friction force and adherence phenomenon when They operates in low speed, and the use of the cylinders is not proper in the clean room and high temperature and high pressure environment. Accordingly, in this study, sealless cylinder attaching conical-type piston without seal is proposed to complement the handicap. This paper shows a performance analysis for conical type sealless cylinders and rod bearings. The pistons without seal have partly cylindrical and conical shapes. The 2dimensional Reynolds equation and FD(finite differential) numerical techniques are utilized for the performance analysis. The relationship among self-centering forces and leakage flows are investigated. Also, the optimal design values for a sealless cylinder are presented. A prototype of sealless cylinder which had rod bearing with four pockets, five pockets, and six pockets was manufactured respectively. The leakage flow tests are conducted to evaluate performance of piston and rod bearing in sealless cylinder.

Citation Download Citation

Dong-Soo Kim and Sang-Kyu Bae "The experiments and characteristic analysis of the sealless cylinder", Proc. SPIE 6042, ICMIT 2005: Control Systems and Robotics, 60424G (2 May 2006); https://doi.org/10.1117/12.664813

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