Composite type air vent valve of fuel tank and air vent mechanism
US6810900B2 · kind B2 · utility
8Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7773
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air vent mechanism includes a composite type air vent valve having a check valve for controlling a pressure in a fuel tank and a cut valve for discharging vapor in the fuel tank and preventing fuel from leaking. The check valve and the cut valve are connected through a communicating path. A tank side connecting portion communicates with the communicating path, and an atmosphere side connecting portion communicates with an atmosphere side port of the check valve portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.