Air/fuel ratio control device for a carburetor
US4574755A · kind A · utility
4Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1983 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Nov 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/67
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake system for an internal combustion engine having an air/fuel ration control device for closing the vent on a float chamber. The increased pressure within the float chamber from the incoming fuel enrichens the air/fuel mixture to the engine. The vent closure is effected by a valve controller responsive to intake vacuum. The controller is activated by vacuum experienced during engine braking. A bistarter choke system is disclosed including means for disabling the air/fuel ratio control device using either a switching apparatus or the higher pressures within the choke mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.