Solenoid valve for controlling gas supply
US10788140B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 16, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Dec 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid valve is provided to control a gas supply pressure such as a hydrogen supply valve of a fuel cell system. In particular, the solenoid valve includes: a valve body including a nozzle and a valve chamber, a nozzle opening/closing sheet, and a gas bypass hole formed on the valve body to communicate with a valve chamber of the valve body when the nozzle is closed and supply gas to a first chamber of the valve chamber through the gas bypass hole. With this arrangement, the solenoid valve may inhibit gas leak that can occur in the nozzle due to a diameter error of the nozzle due to a production deviation and a production deviation of a regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.