Barrier vapor control system
US4598741A · kind A · utility
26Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1984 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Sep 21, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/048
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A barrier vapor control system includes a seal inside an automobile filler pipe for engaging the fuel delivery conduit of a pump nozzle to prevent the escape of hydrocarbon vapors out of the filler pipe into the atmosphere while the fuel tank is being refilled. A vapor recovery conduit downstream of the seal carries the vapors displaced by filling the fuel tank to a cannister that contains a scrubbing agent. A vacuum accumulator and a vacuum pump draw fresh air and the vapors from the fuel tank through the cannister to remove hydrocarbon vapors from the effluent vapors of the fuel tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.