Valve for a gravity-feed silo tank fueling system
US11325825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2021 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D7/3281
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fleet refueling silo tank system gravity feeds fuel through hoses to fleet units without requiring pressurizing pumps. A specialized valve at the fleet unit fuel tank prevents vapor escape and admits fuel at low, gravity-feed pressures. The valve includes a valve body with an upper end and a lower end, the upper end adapted to engage a cap which affixes the valve body to the fuel tank fill mouth. Below the cap, a fuel cut-off plunger and seat selectively interrupt fuel flow through the mouth by responding to a buoyant float extending coaxially beneath the valve body and into the fuel tank. Linkage coupled to the plunger extends through the valve body to the float, and roller bearings within the valve body engage a shaft extending from the float coaxially into the lower end of the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.