Vehicle drive comprising vacuum system and ejector

A vehicle drive with a vacuum system for a vehicle, with an internal combustion engine which is connected to an intake air line and an outlet air line,

• the vacuum system having an ejector,
• a propellant line opening into a nozzle channel of a drive nozzle of the ejector,
• the nozzle channel opening through a nozzle opening into a mixing chamber of the ejector,
• a suction line opening into the mixing chamber, and the mixing chamber opening on an outlet side directly or indirectly into a mixed gas line, and
• the mixed gas line opening into the intake air line,
• the suction line being connected to a vacuum consumer,
• wherein the nozzle opening of the drive nozzle is configured by way of a nozzle edge with serrations, undulations, or both serrations and undulations, wherein the serrations, undulations, or both serrations and undulations of the nozzle edge protrude into the mixing chamber.