Breather with pressure-equalization function

Abstract

A breather device with a pressure-equalization function having a breather connection and an environment connection is provided between an electric machine compartment and a transmission compartment. One of the two connections is fluidically connected to an environment surrounding the breather device and the respective other connection can be fluidically connected to the transmission compartment. The breather device has a breather valve, with which a fluid-conducting connection between the breather connection and the environment connection can be selectively interrupted by a breather valve body. The breather valve has a valve preloading device with a valve preloading element, wherein the valve preloading element separates a preloading pressure compartment into a first preloading sub-compartment and a second preloading sub-compartment and wherein a preloading force on the breather valve body can be directly or indirectly altered using the valve preloading element. The first preloading sub-compartment can be fluidically connected via a first pretension connection to the transmission compartment or the electric machine compartment. The second preloading sub-compartment can be fluidically connected to a second preloading connection by the other of these two compartments.