Patent ID: 6539923
Filing Date: 2003-04-01
Classification: F02B,F02M,Y02T

Abstract:
An apparatus for mixing air and fuel in an internal combustion engine of the type comprising:at least two throttle bodies each having an inlet and an outlet; the outlet of each throttle body being in fluid communication with an intake pipe connected with an engine cylinder; at least two air chokes, each mounted at the inlet of a throttle body in such a way that it is coaxial with the throttle body; each of the air chokes comprising a fixed portion and a mobile portion that moves coaxially relative to the fixed portion between a first position in which the air choke presents a first height and a second position in which the air choke presents a second height that is greater than the first height; at least two fuel injectors, each positioned above one of the air chokes; the apparatus further comprising at least two separate actuators each designed to move one of the mobile portions between the first and second positions.