Carburettor for an internal combustion engine
US4022175A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 15, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Jan 15, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D35/0023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A carburettor for an internal combustion engine including a main duct and an auxiliary duct which receive air from a valved inlet, a main valve in each of the ducts for controlling flow through the ducts. Fuel is introduced into the auxiliary duct upstream of the main valve therein but downstream of an auxiliary valve in the auxiliary duct which is used to control the fuel to air ratio of the fuel/air mixture produced by the carburettor. The auxiliary valve is controlled in accordance with engine temperature, pressure drop across air filter, degree of dilution of recycled exhaust gases, degree of combustion of exhaust gases, temperature of air entering the engine, or atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.