US 11,754,168 B2
Oil drainage
Wim De Laet, Antwerp (BE); Stijn Rottiers, Lokeren (BE); Kris Adriaensen, Friedrichshafen (DE); and Richard Cordes, Friedrichshafen (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE); and ZF WIND POWER ANTWERPEN N.V., Lommel (BE)
Appl. No. 17/297,485
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE); and ZF Wind Power Antwerpen N.V., Lommel (BE)
PCT Filed Oct. 24, 2019, PCT No. PCT/EP2019/079003
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2020/108889, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10 2018 220 534.5 (DE), filed on Nov. 29, 2018.
Prior Publication US 2022/0025966 A1, Jan. 27, 2022
Int. Cl. F16H 57/04 (2010.01); F16L 27/12 (2006.01)
CPC F16H 57/0408 (2013.01) [F16H 57/0423 (2013.01); F16L 27/12 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An arrangement, comprising:
a transmission housing forming a lubricant sump, and
a pipeline including a first piece and a second piece,
wherein the first piece and the second piece of the pipeline respectively open into the lubricant sump,
wherein the first piece and the second piece are inserted into one another,
wherein the transmission housing includes at least two separate housing parts,
wherein the first piece of the pipeline opens into a first one of the housing parts and the second piece of the pipeline opens into a second one of the housing parts,
wherein the first one of the housing parts comprises a curved elbow connecting the first piece of the pipeline to an input-side planetary stage of a transmission, and
wherein the second one of the housing parts comprises an s-bend connecting the second piece of the pipeline to an output-side spur gear stage of the transmission.