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Machine translation
1. (WO1981000593) STAGED SINGLE CARBURETOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000593    International Application No.:    PCT/US1979/000663
Publication Date: 05.03.1981 International Filing Date: 29.08.1979
IPC:
F02M 1/10 (2006.01), F02M 7/12 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00663 29.08.1979 WO
Title (EN) STAGED SINGLE CARBURETOR
(FR) CARBURATEUR SIMPLE ETAGE
Abstract: front page image
(EN)A carburetor (C) has an induction passage (P) and a throttle valve (T) positioned in the induction passage. A staging valve (S), also positioned in the induction passage, is closed during cranking of an engine whereby a suitably rich air-fuel mixture is supplied to the engine to start it. The staging valve moves to a first open position when the engine starts and toward a fully open position as the engine warns up. Means (19) limit opening movement of the staging valve to a second open position which is intermediate its first and its fully open positions. This limits the usable air capacity of the carburetor. A staging means (35) responsive to the movement of the throttle valve past a predetermined open position enables the staging valve to move freely between its second open position and a more fully open position solely in response to air demand. The staging valve is freely movable to its fully open position when the throttle valve is fully opened and this increases the usable air capacity of the carburetor to its maximum.
(FR)Un carburateur (C) possede un passage d"induction (P) et un papillon (T) dispose dans le passage d"induction. Une soupape d"etagement (S), egalement disposee dans le passage d"induction est fermee pendant la mise en route d"un moteur, ce qui permet une alimentation appropriee en un melange air-combustible du moteur pour le faire demarrer. La soupape d"etagement se deplace vers une premiere position ouverte lorsque le moteur demarre et vers une position grande ouverte au fur et a mesure que le moteur chauffe. Des moyens (29) limitent le mouvement d"ouverture de la soupape d"etagement sur une seconde position ouverte qui est intermediaire entre sa premiere position ouverte et sa position grande ouverte. Ceci limite la capacite utilisable d"air du carburateur. Des moyens d"etagement (35) sensibles au mouvement du papillon au-dela d"une position ouverte predeterminee permettent a la soupape d"etagememt de se deplacer librement entre sa seconde position ouverte et une position plus ouverte seulement en reponse a la demande en air du moteur. La soupape d"etagement peut se deplacer librement vers sa position grande ouverte lorsque le papillon est totalement ouvert et ceci augmente la capacite utilisable d"air du carburateur jusqu"a son maximum.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)