Normally-open solenoid valve including plunger formed with pressure receiving portion
US8550427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/363
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid valve includes a solenoid coil, a yoke of magnetic material, an armature of magnetic material to move in an axial direction of the solenoid coil when the solenoid coil is energized, a plunger to be moved with the armature, a valve seat member including a seat portion formed with a valve hole to be closed and opened by a forward end portion of the plunger, and a coil spring which is disposed between a spring receiving portion of the plunger and the valve seat member, around the plunger. The plunger includes a pressure receiving portion (such as a flat portion) which extends in a radial direction of the plunger at a position between the forward end portion and the spring receiving portion of the plunger, and which faces to the seat portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.