Valve assembly having electrical actuator with stepped armature
US10711754B2 · kind B2 · utility
25Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2017 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/07
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve assembly for a pump includes an electrical actuator having a stator and an armature, where the armature includes a top armature surface facing the stator and having an inwardly stepped-up profile that forms a raised surface at a radially inward location, and a lower, gap-forming surface at a radially outward location that forms a gap between the armature and the stator when the electrical actuator is activated to facilitate displacing fluid and avoiding production of high velocity, potentially damaging fluid flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.