System and method for carburetor venting
US8677978B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Dec 8, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/223
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for venting vapors from a fuel tank of an engine, an engine with such a system, and related methods are disclosed. In one embodiment, such a system includes a coupling device having first, second, and third ports that are connected at a junction, where the first and second ports are respectively configured to be at least indirectly coupled to the tank and a carburetor, respectively, and where the third port is in communication with an outside environment via a filter. The system further includes an obstruction that is formed at a location downstream of the junction en route toward the carburetor, the location being either within the coupling device or at a position downstream of that device, such that at least some of the vapors can proceed from the tank to the carburetor and at least some air from the environment is able to proceed toward the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.