Supplemental fuel vapor system
US4982715A · kind A · utility
11Cited by
19References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 15, 1987 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | May 15, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vapor utilization fuel system directs fuel vapor from a vehicle's fuel tank to an intake manifold on the vehicle's engine. The vapor is combusted in the normal course of engine operation. In one embodiment, a mixing canister combines additional air with the fuel vapor; the mixing canister is located on the fuel tank's fill tube. In a second embodiment, the fuel vapor can flow to either the intake manifold or to a conventional carbon canister when the engine is not running.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.