Miniature Air Compressor Design Based on Cross-Slider Mechanism
Most of the current air compressors are driven by a slider-crank mechanism consisted of the crank, connecting rod, and piston. Complexity of this mechanism, however, restricts miniaturization of air compressors. In this study, a design based on a new mechanism, a hybrid of cross-slider and scotch-yoke mechanism, is adopted to develop an oil-free, lightweighted air compressor for portable medical devices. By eliminating the connecting rod, the mechanism has several advantages in addition to the obvious weight reduction due to the simpler mechanism such as the longer seal life of the seal between the piston and cylinder (so called Teflon cup) and reduced shaking forces. Cylinder pressure time history is obtained based on the ideal gas behavior and the isentropic process. Shaking forces and motor torque are calculated from the dynamics equation of the air compressor. The flow capacity curve of the air compressor is obtained by considering the effect of the clearance volume. An actual prototype was fabricated and tested to demonstrate the feasibility of proposed concepts.
cross-slider mechanism scotch-yoke mechanism air compressor performance modeling pressure profile.
Gil Jun Lee Suk Hwan Chi Jay Kim Tae Soo Lee
Graduate School of Sogang University, 1 Shinsu-dong, Mapo-gu, Seoul, South Korea, 121-742 Mechanical Engineering, University of Cincinnati, Cincinnati, OH 45221-0072 Department of Mechanical Engineering, Sogang University, 1 Shinsu-dong, Mapo-gu, Seoul, South Korea,
国际会议
Fourth International Conference on Advanced Design and Manufacturing(第四届先进设计与制造国际会议)
昆明
英文
17-20
2011-09-21（万方平台首次上网日期，不代表论文的发表时间）