Air intake for an air filter of an internal combustion engine

Claim 1

An air intake neck for an air filter of an internal combustion engine, said neck comprising a body having two semi-shells which are interconnected in a joint plane and define a mixing chamber, a cold air conduit and a hot air conduit both opening onto said chamber, an outlet conduit for the mixed air mixed in said mixing chamber and communicating with said hot air and cold air conduits, a thermostatically adjustable flap which is capable of separating the hot air conduit from the mixing chamber, a flap-actuating tab connected to the flap, a thermometric sensor connected to the body and located in a position in which said mixed air travels thereover and incuding a movable output element, and a linkage connecting the sensor to the flap for controlling the position of the flap, the linkage comprising a first transmission rod in contact with said movable output element of the thermometric sensor, a second rod in contact with the actuating tab of said flap, and motion direction changing means comprising elements permitting a transmission of force from the output element to the actuating tab with a modification in the direction of said force, said first transmission rod, said second transmission rod and said motion direction changing means being mounted to be movable exclusively in translation in said body and at least one of said transmission rods being slidably mounted in said plane of said body.