DEVICE FOR SUPPLYING AIR TO A SUCTION SIDE OF A PUMP, COMPONENT UNIT HAVING SUCH A DEVICE AND WIPER SYSTEM

The invention relates to a device () for supplying air to a suction side () of a pump () of a wiper system (), said device () comprising a suction channel () for sucking in air, said suction channel () being able to be connected to the suction side () of the pump (). Provision is made that the device () is realized as a component separate from the pump () and comprises a connection area () for connecting the device () with a supply container () for washer fluid () and having an additional connection area () for a suction nozzle () of the pump (), and that a check valve () is disposed in the suction channel (), said check valve () being designed to open and close as a function of a negative pressure (P) on a suction nozzle () of the pump (), whereby when the said check valve () is opened air can enter the area of the suction nozzle () of the pump (), and when the check valve () is closed no air is sucked in.