Sludge flow measuring system
US9926925B2 · kind B2 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Mar 19, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2201/0202
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sludge flow monitoring system and method measures volume of sludge pumped by a positive displacement pump through a pipeline by determining a fill percentage during each pumping cycle. The start and end of each piston stroke are identified by hydraulic system sensors. The fill percentage is determined based upon a first summation of periodic piston speed command values from the start of a pumping stroke to the end of a pumping stroke, and a second summation of periodic piston speed command values from a poppet valve opening indicating output flow from the pump to the end of the pumping stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.