Valve device
US10428962B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve device for a gas tank, includes a body and a check valve provided in an injection passage to inject gas into the gas tank. The check valve includes a valve seat, a case fixed in the injection passage while a space is provided between an inner peripheral surface of the injection passage and the case to enable gas to flow through the space, and a valve element accommodated in the case. The case includes a cylindrical portion, and is configured such that the bottom of the cylindrical portion, provided at an opposite side to the valve seat, defines a range where the valve element is axially movable. The valve element includes a head portion that can block a valve hole of the valve seat, and a sliding portion formed to be axially movable with respect to the cylindrical portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.