Viability study of oscillatory flow pumps using bimorph piezoelectric actuators

Precision flow pumps have been widely studied over the last three decades. They have been applied in the areas of Biology, Pharmacy and Medicine in applications usually related to the dosage of medicine and chemical reagents. In addition, thermal management solutions for electronic devices have also been recently developed using these kinds of pumps offering better performance with low noise and low power consumption. In a previous work, the working principle of a pump based on the use of a bimorph piezoelectric actuator inserted in a fluid channel to generate flow was presented. In this work, a novel configuration of this piezoelectric flow pump that consists of a flow pump using two bimorph piezoelectric actuators in parallel configuration has been studied and it is presented. This configuration was inspired on fish swimming modes. The complete cycle of pump development was conducted, consisting in designing, manufacturing, and experimental characterization steps. Load-loss and flow rate characterization experimental tests were conducted, generating data that allows us to analyze the influence of geometric parameters in the pump performance. Comparisons among numerical and experimental results were made to validate the computational results and improve the accuracy of the implemented models.

[1]  Ju Hyun Yoo,et al.  Piezoelectric ceramic bimorph coupled to thin metal plate as cooling fan for electronic devices , 2000 .

[2]  Suresh V. Garimella,et al.  Dynamics and topology optimization of piezoelectric fans , 2002 .

[3]  Sean M. Ford,et al.  Piezoelectric mechanical pump with nanoliter per minute pulse-free flow delivery for pressure pumping in micro-channels , 1998 .

[4]  S. Wereley,et al.  Phase-resolved flow field produced by a vibrating cantilever plate between two endplates , 2004 .

[5]  Zensheu Chang,et al.  Piezoelectrically actuated miniature peristaltic pump , 2000, Smart Structures.

[6]  Arvind Raman,et al.  Dynamic Response Optimization of Piezoelectrically Excited Thin Resonant Beams , 2005 .

[7]  Rogério F. Pires,et al.  A miniature bimorph piezoelectrically actuated flow pump , 2006, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[8]  Y Nosé,et al.  Characteristics of a blood pump combining the centrifugal and axial pumping principles: the spiral pump. , 1996, Artificial organs.

[9]  Juan G. Santiago,et al.  A review of micropumps , 2004 .

[10]  Zensheu Chang,et al.  Piezoelectrically actuated miniature peristaltic pump , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[11]  Arvind Raman,et al.  Microscale pumping technologies for microchannel cooling systems , 2004 .

[12]  Mir Majid Teymoori,et al.  Design and simulation of a novel electrostatic peristaltic micromachined pump for drug delivery applications , 2005 .

[13]  H Keen,et al.  Continuous subcutaneous insulin infusion: an approach to achieving normoglycaemia. , 1978, British medical journal.

[14]  Neil M. White,et al.  A novel micromachined pump based on thick-film piezoelectric actuation , 1998 .

[15]  Ilan Fono,et al.  A Piezoelectric Valve-Less Pump-Dynamic Model , 2001 .

[16]  J. Videler,et al.  Aquatic vertebrate locomotion: wakes from body waves. , 1999, The Journal of experimental biology.

[17]  Michael Sfakiotakis,et al.  Review of fish swimming modes for aquatic locomotion , 1999 .

[18]  Arvind Raman,et al.  Two-dimensional streaming flows induced by resonating, thin beams. , 2003, The Journal of the Acoustical Society of America.

[19]  M. Triantafyllou,et al.  Optimal Thrust Development in Oscillating Foils with Application to Fish Propulsion , 1993 .