| 摘要 |
A vibratory pump for dispensing a fluid in a highly controllable manner includes a pumping mechanism in which a piston is slidably disposed within a chamber having an inlet and an outlet spaced from one another. The piston is shaped similarly to the interior of the chamber and is capable of moving within the chamber in a manner that prevents any fluid in the chamber from flowing between the chamber and the piston. As a result, the pumping mechanism does not require the use of any separate compressible or elastic sealing members, thereby increasing the reliability and useful life of the pump.
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