Restrictive flow area section in an intake passage of a well pump
US10718196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B19/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A well pump assembly has a pump housing with an intake member. A barrel has a barrel head secured to and extending downward from the intake member. A plunger is reciprocally carried in the barrel bore. An intake passage extends coaxially in the intake member and the barrel head into the barrel bore above the plunger. An intake port extends from an exterior of the intake member to the intake passage. A nozzle is secured within in the intake passage. The nozzle has an orifice passage with a downward converging section extending downward to a constant diameter section. The constant diameter section has a smaller diameter than the intake passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.