System and method for improved flow uniformity in a peristaltic pump mechanism
US10837436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2015 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B9/042
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pumping mechanism includes a plurality of peristaltic pumping actuators to compress adjacent portions of a first portion of an at least partially compressible pumping element having an inlet that is upstream of an outlet. The plurality of pumping actuators further reciprocate at a common drive frequency with a first phase offset between each adjacent pair of pumping actuators. The pumping mechanism also includes one compensation actuator to compress a second portion of the compressible pumping element disposed between the first portion and the outlet. The compensation actuator reciprocates at an optimal displacement and at a modulation frequency that is an integer multiple of the fundamental drive frequency and with a second phase offset between the compensation actuator and the adjacent pumping actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.