Fuel recovery system for internal combustion engines
US7543573B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2007 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Aug 22, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/116
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A recovery system for fuel for motor vehicles includes a canister having an absorbent media such as activated charcoal. The canister includes an inlet in fluid communication with the blow-by vent of an internal combustion engine and an outlet in communication with the air intake manifold of the engine. Control valves may be incorporated into the system to control fluid flows. As a single vaporization temperature fuel or fuel constituent such as ethanol that has mixed with engine oil during startup vaporizes when the oil reaches its vaporization temperature, it is first absorbed in the activated charcoal and then slowly released and burned in the engine. The system has particular applicability to E85 fueled vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.