(19)
(11) EP 0 057 022 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.10.1983 Bulletin 1983/43

(43) Date of publication A2:
04.08.1982 Bulletin 1982/31

(21) Application number: 82200001

(22) Date of filing: 04.01.1982
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 27.01.1981 IT 331781

(71) Applicant: WEBER S.p.A.
 ()

(72) Inventors:
  • Montefameglio, Livio
     ()
  • Gaviani, Giovanni
     ()

   


(54) Device adapted to enrich the mixture supplied by a carburetor for internal combustion engines


(57) A vacuum capsule opens an additional fuel circuit when the vacuum in the suction manifold has a comparatively low value because the engine functions at heavy duty conditions and full power; said circuit has two branch conduits to feed fuel both to the main feed circuit and the idling circuit of the carburettor. The amount of fuel supplied to these two circuits is adapted to maintain the correct strength of the mixture supplied by the carburettor in the running conditions for which the vacuum capsule opens said circuit.






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