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Nelson Applied Research, Inc – N. 88 th St. Seattle, WA USA aol.com Piezo Pump Performance Capability About 5 PSI Typical Commercial Piezo Pump 2

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Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Design and Performance of Piezopumps

Craig E. Nelson - Consultant Engineer

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

1. Maximum pressure available seems to be on the order of about 12 PSI

2. Flow rate at a pressure of 1 PSI seems to be about 5ml/min for 1 inch dia. piezos

3. Pumping rates for liquid seem to be about 3.5 that for gas at 1 PSI back pressure

Typical Commercial Piezo Pump 1

Page 3: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Piezo Pump Performance CapabilityAbout 5 PSI

Typical Commercial Piezo Pump 2

Page 4: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

11.6 PSI

(100 hecto Pascals = 1.45 PSI)

Typical Commercial Piezo Pump 3

Page 5: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

5.8 PSI

2.2 PSI

(100 hecto Pascals = 1.45 PSI)

About 1 PSI

Typical Commercial Piezo Pump 4

Page 6: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Piezo Pump Parts and Construction

Page 7: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Inside a PAR Corporation Pump

Page 8: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Piezo Pump Elements

Page 9: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Disc Type ValveTypical Piezo Pump Assembly

Piezo Pump Elements

Page 10: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

15, 27 and 35 mm Piezo Disks

Typical Piezo Disks

Page 11: Nelson Applied Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Design and Performance of Piezopumps Craig E

Nelson Applied Research, Inc. 2142 – N. 88th St. Seattle, WA. 98103 USA 206-498-9447 Craigmail @ aol.com

Summary

The performance of several commercially available piezopumps has been presented.

Some aspects of the design and construction of typical piezopumps were shown.

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