Linear solenoid and valve device using the same
US8585014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2010 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Sep 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear solenoid comprising: linear solenoid portion, comprising: a coil; a cylindrical movable core which is attracted toward a fixed core when the coil is energized; and a cylindrical yoke which surrounds an outer circumference surface of the movable core, wherein the movable core has a shaft-less structure, a first plain bearing and a second plain bearing for slidably supporting both ends of the movable core are provided respectively at both ends of a cylindrical yoke along its axis, and the first plain bearing and the second plain bearing are provided to be projected from the inner circumference surface of the cylindrical yoke by a predetermined length T toward the movable core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.