Journal Article10.1115/1.2920911
Performance Characteristics of Shrouded Rayleigh-Step and Spiral Groove Viscous Pumps
Yuichi Sato,J. D. Knight +1 more
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TL;DR: In this paper, the optimum geometrical configurations of a shrouded Rayleigh-step and a spiral groove viscous pump are analyzed and their performance characteristics are compared. And the authors show that the flow rate of the optimized spiral-greedy viscous pumps is approximately 5-10 percent greater than that of the optimal shrouded Ray-leigh-steps.
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Abstract: In this paper the optimum geometrical configurations of a shrouded Rayleigh-step and a spiral groove viscous pump are analyzed. Then their performance characteristics are compared. The geometries and film shapes of these viscous pumps are optimized with respect to flow rate and the design parameters are summarized graphically. The flow rate of the optimized spiral groove viscous pump is approximately 5-10 percent greater than that of the optimized shrouded Rayleigh-step viscous pump
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Citations
Miniature Single-Disk Viscous Pump (Single-DVP), Performance Characterization
TL;DR: Advantages of the disk pumps include simplicity, ease of manufacture, ability to produce continuous flow with a flow rate that does not vary significantly in time, and ability to pump biological samples without significant alteration or destruction of cells, protein suspension, or other delicate matter.
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An Improved Design of Spiral Groove Mechanical Seal
Jianfeng Zhou,Boqin Gu,Ye Chen +2 more
TL;DR: In this article, a spiral groove was designed to gradually increase from the end radius of spiral groove to the outer radius of end face in order to de- crease the weakening effect of thermal deformation on the hydrodynamic effect of spiral grooves.
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Miniature Single-Disk Viscous Pump "Single-DVP…, Performance
Daniel B. Blanchard,Phil Ligrani,Bruce K. Gale +2 more
- 01 Jan 2006
TL;DR: In this paper, the authors developed a rotating single-disk viscous pump with a 10.16 mm diameter spinning disk and a pump chamber, which are separated by a small gap that forms the fluid passage.
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Pumping Characteristics of a Herringbone-Grooved Journal Bearing Functioning as a Viscous Vacuum Pump
TL;DR: In this article, a laser scanner motor using a herringbone-grooved journal bearing, which functions as a viscous vacuum pump, was developed. But the theoretical properties of this bearing were investigated using the narrow-groove theory.
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Comparisons of different viscous pumps based on physical flow behavior
Daniel B. Blanchard,Phil Ligrani +1 more
TL;DR: In this article, scaling relations for flow behavior in viscous pumps are given for two types of flow: Couette-type or shear-driven flow and (ii) Poiseuille type or pressure driven flow.
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