Vortex plunger arrangement
US10577903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2016 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Oct 17, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plunger assembly arranged to minimize uneven wear spots or areas thereon during the plunger assembly's horizontal and vertical travel within a hydrocarbon producing well conduit. The plunger assembly comprises an elongated central mandrel having an elongated central bore extending longitudinally therethrough for transmitting fluids from a well through the plunger assembly, the elongated central mandrel having a generally cylindrically shaped outer surface along portions thereof, and a plurality of arcuately shaped wear pads guidedly supported on the cylindrically shaped outer portions of the central mandrel An array of elongated helically presented protrusions and a corresponding array of elongated helically presented grooves in mating interdigitation are arranged between the outer portions of the mandrel and their radially adjacent wear pads, so as to provide an inducement of rotation to the plunger assembly about its longitudinal axis during the plunger assembly's travel through a well conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.