公开(公告)号：US20190277202A1

公开(公告)日：2019-09-12

申请号：US16295289

申请日：2019-03-07

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Lorenzo Guiduzzi ,  Stefano Musolesi ,  Federico Caroti

IPC: F02D9/10

Abstract: A throttle valve having: a valve body; an intake duct obtained in the valve body; a throttle plate arranged in the intake duct; a shaft mounted so as to rotate, supporting the throttle plate; an electric motor; a gear transmission, which couples the electric motor to the shaft and has an end gear which is integral with the shaft; a return spring, which is designed to rotate the throttle plate towards a closing position; a striking element, which is obtained in the valve body and establishes an intermediate position of partial opening; and a countering spring, mounted on the end gear, which is designed to rotate the throttle plate towards the intermediate position and has one end which is designed to rest against the striking element during the rotation of the end gear.