Liquid fuel dispensing system including a filtration vessel within a sump
US5122264A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1991 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Jan 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8013
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A liquid fuel dispensing system with improved means of preventing water and particulate contamination employing an underground fuel storage tank, a pump for moving fuel from the fuel storage tank to a pump fuel outlet, an underground enclosed sump in which at least a portion of the pump is located, a filtration vessel within the sump having a fuel inlet connected to the pump fuel outlet and a fuel outlet, a filter element in the filtration vessel in series with fuel flow therethrough, the filter element having a filter media which intercepts particulate contaminants and which absorbs water to thereby prevent particulate and water contaminants from passing therethrough, a fuel shut-off device in conjunction with the filter element which is moved to the closed position when a predetermined pressure differential develops across the filter media as water is absorbed, the shut-off device serving to, upon actuation, completely block the flow of fuel through the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.