Tri-core, low reluctance tubular solenoid
US5999073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1996 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Nov 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tri-core solenoid includes first, second and third core segments. The first and second core segments mate to form a low reluctance mating interconnect. The low reluctance mating interconnect includes, in one example, overlapping regions of the first and second core segments that form a joint surface area substantially in the same plane as the flow of flux through the first and second core segments. The third core segment, such as a plunger or armature, is slideably received in an aperture defined by the first and second core segments. The first core segment includes an end portion preferably having a first pole face that mates with a second pole face on the third core segment. The second core segment has a receiving region, such as a journal or bushing, that slideably receives the third core segment and forms a journal air gap therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.