Abstract:
The invention relates to a metering module (1), in particular for an exhaust gas after-treatment device (2) of a motor vehicle, comprising a metering valve (3) for injecting a liquid medium. The metering valve (3) has a dedicated inflow duct (5) for the medium to be injected, wherein a fresh-air duct (6) in which a return valve (7) is arranged terminates in the inflow duct (5). According to the invention, a throttle valve (17) is dedicated to the return valve (7).
Abstract:
The invention relates to an electrical machine (100) having a stator (105), a rotor (110) mounted to be rotatable about an axis of rotation (120) and an air gap (115) for mounting the rotor (110) in the axial direction. The air gap (115) is arranged perpendicular to the axis of rotation (120) between a rotor surface (130) of the rotor (110) and a stator surface (125) of the stator (105).