Carbureting device for an engine
OwnerJean Marauxinventor
Life of this patent
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Abstract
Carbureting device for supplying in air-fuel mixture to at least one heat engine combustion chamber and of the type comprising a passage of rich mixture and a passage of additional air wherein an element for controlling the constriction section of the passage of additional air is coupled to an actuating motor dependent upon the speed of rotation of the heat engine, this device being applied to a carburetor in order to suppress the enrichment pump and to obtain a lean air-fuel mixture for high rotation speeds of the engine.
Claims3
A carburetor for supplying at least one chamber of an internal combustion engine with an air-fuel mixture, the carburetor comprising:
- a first conduit for carrying a fuel-rich mixture;
- a second conduit for delivering air to the fuel-rich mixture;
- adjustable constriction means located in the second conduit for setting the final fuel richness of the air-fuel mixture;
- servo means, responsive to engine speed, connected to an actuating motor;
- an adjustment member of the constriction means connected to the actuating motor for:
- sealing the constriction means near engine idling speeds;
- rapidly opening the constriction means at speeds slightly than idling;
- continuing to open the constriction means at a slower rate after engine speed exceeds a predetermined level corresponding to an enrichment cut-out condition;
- wherein the servo means slightly delays movement of the adjustment member during engine speed increases so as to obtain fuel enrichment during engine acceleration.
Dependencies are inferred from the claim text.