Electromagnetic valve
US4655249A · kind A · utility
23Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1986 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Apr 9, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86895
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic valve uses a solenoid coil to produce a magnetic attraction of a cylindrical shell core against the action of a spring. A valve seat is constituted by a plate of a hard material arranged to cooperate with a circular ridge on an end of the core to obtain an hermetic seal therebetween. The plate is maintained against a bearing surface within a valve housing by a telescoping element located within the shell core and providing a sliding support surface for the shell core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.