Engine having carburetor with bridge circuit
US6513794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2002 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jul 16, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2009/023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine including a cylinder, a crankshaft, a reciprocating piston disposed in the cylinder and operably coupled to the crankshaft, and a carburetor. The carburetor includes an airflow passage through which varying amounts of air flows; a variably positioned throttle valve located in the airflow passage, the amount of air flowing through the airflow passage being varied in response to the position of the throttle valve; a source of stored liquid fuel; a well containing liquid fuel and in independent fluid communication with the source of stored liquid fuel; a nozzle extending between the liquid fuel contained in the well and the airflow passage, the nozzle having an outlet located upstream of the throttle valve in the airflow passage, a variable amount of the liquid fuel contained in the well being conveyed through the nozzle to the airflow passage in response to the amount of air flowing through the airflow passage; and an idle circuit in independent fluid communication with both the source of stored liquid fuel and the well, the idle circuit containing liquid fuel and having at least one fuel outlet located in the airflow passage downstream of the throttle v…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.