US 12,215,773 B2
Automatic transmission for a motor vehicle
Thomas Riedisser, Sigmarszell (DE); Gabriele Glade, Friedrichshafen (DE); Julia Baumann, Bodnegg (DE); Stephan Stroph, Tettnang (DE); Andreas Knörle-Philipp, Ravensburg (DE); Jan Göbel, Wasserburg (DE); Peter Reinders, Markdorf (DE); Martin Kibler, Friedrichshafen (DE); Hans-Peter Bock, Bermatingen-Ahausen (DE); Florian Lanz, Tettnang (DE); Juergen Stauber, Kressbronn (DE); and Rudolf Raedler, Meckenbeuren (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on May 5, 2023, as Appl. No. 18/312,756.
Claims priority of application No. 10 2022 204 500.9 (DE), filed on May 6, 2022.
Prior Publication US 2023/0358301 A1, Nov. 9, 2023
Int. Cl. F16H 57/04 (2010.01); F16H 41/30 (2006.01)
CPC F16H 57/0423 (2013.01) [F16H 41/30 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An automatic transmission (1) for a motor vehicle (2), comprising:
a transmission housing (4);
a hydrodynamic torque converter (5);
a first brake (A);
a second brake (B);
an intermediate plate (6) fixedly connected to the transmission housing (4), the intermediate plate (6) comprising ducts for supplying the hydrodynamic torque converter (5) and the first and second brakes (A, B) with oil;
an oil guide shell (7) arranged between the hydrodynamic torque converter (5) and the intermediate plate (6); and
a tank (8),
wherein the oil guide shell (7) comprises an inflow opening (40) arranged above the tank (8) and an oil ejection opening (50) arranged above the inflow opening (40),
wherein the automatic transmission (1) is configured such that the oil coming from the two brakes (A, B) sinks via oil ducts (26; 39.1, 39.2, 39.3) in the transmission housing (4) and the intermediate plate (6) and reaches the hydrodynamic torque converter (5) via the inflow opening (40) in the oil guide shell (7), and
wherein the hydrodynamic torque converter (5) is configured such that rotation of the hydrodynamic torque converter (5) conveys the oil to the oil ejection opening (50) in the oil guide shell (7), from where the oil sinks into the tank (8) via a gap (52) delimited by the oil guide shell (7) and the intermediate plate (6).