US 12,168,965 B2
Vehicle drive comprising vacuum system and ejector
Daniel Kintea, Maintal (DE); Lukasz Gabrys, Pilica (PL); Michal Sajdak, Pilica (PL); Gerrit von Breitenbach, Maintal (DE); and Janusz Szwajkosz, Pilica (PL)
Assigned to Norma Germany GmbH, Maintal (DE)
Appl. No. 18/029,456
Filed by NORMA Germany GmbH, Maintal (DE)
PCT Filed Aug. 4, 2021, PCT No. PCT/EP2021/071799
§ 371(c)(1), (2) Date Mar. 30, 2023,
PCT Pub. No. WO2022/069099, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 10 2020 125 565.9 (DE), filed on Sep. 30, 2020.
Prior Publication US 2023/0374956 A1, Nov. 23, 2023
Int. Cl. F02M 25/08 (2006.01); F01M 13/02 (2006.01); F04F 5/20 (2006.01); F04F 5/46 (2006.01)
CPC F02M 25/08 (2013.01) [F01M 13/021 (2013.01); F04F 5/20 (2013.01); F04F 5/46 (2013.01); F01M 2013/026 (2013.01)] 16 Claims
OG exemplary drawing
 
1. 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, wherein an inflow direction of the suction line into the mixing chamber is substantially parallel to the nozzle channel, 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.