Solenoid valve
US11261988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2020 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A solenoid valve includes an inner stator and an outer stator that are part of a magnetic circuit. An armature is attracted toward the inner stator when a coil is energized. A spring biases the armature in a direction away from the inner stator. A rod is integrally formed with the armature and integrally reciprocates with the armature. A guide guides reciprocation of the rod. A valve operates by following the rod to open and close a fuel/liquid passage. The spring and sliding portions between the rod and the guide are arranged within a recess portion formed in the inner stator and arranged in parallel to each other while overlapping in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.