Weber S.p.a

Renato Vitto

Francesco Bellicardi

A correction device for correcting the air-fuel ratio of the mixture deli vered by a carburetor is described; the device comprises a first channel communicating, at one end, with a gasoline delivering circuit and with the atmosphere, respectively, through two conduits, end at the other end, with the intake conduit of the carburetor in a zone located near the rim of the throttle; opening into the said first channel, is a first end of a second channel whose other end communicates with the atmosphere, and along the said second channel there is disposed valve means arranged to interrupt the said communication with the atmosphere in response to the variations of the vacuum in the said intake conduit downstream of the throttle valve of the carburetor.

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Bologna, Italy

Renato Vitto