Solenoid actuator having misalignment accommodating structure and solenoid valve using the same
US7014168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0613
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid actuator of a solenoid valve has a solenoid, a yoke, a stator, a cup and a restrained portion. The yoke radially surrounds the stator while radially forming an outer circumferential gap therebetween. The cup receives a plunger. The cup is arranged in the stator while radially forming an inner circumferential gap therebetween. The restrained portion is axially inserted between an internal portion of the yoke and the stator. The outer circumferential gap is greater than the inner circumferential gap. Therefore, even when the inner circumferential gap is set to be small to effectively apply magnetic power generated by the solenoid to the plunger, radial misalignment of the cup can be accommodated by the outer circumferential gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.