US 12,422,037 B2
Drive assembly and vehicle having such a drive assembly
Andreas Henn, Aalen (DE); Benjamin Lukas Mehnert, Schwieberdingen (DE); Manfred Saretzki, Stuttgart (DE); and Martin Armbruster, Brackenheim (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 18/694,057
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Sep. 12, 2022, PCT No. PCT/EP2022/075297
§ 371(c)(1), (2) Date Mar. 21, 2024,
PCT Pub. No. WO2023/046515, PCT Pub. Date Mar. 30, 2023.
Claims priority of application No. 10 2021 210 737.0 (DE), filed on Sep. 27, 2021.
Prior Publication US 2025/0146568 A1, May 8, 2025
Int. Cl. F16H 57/029 (2012.01); F16H 57/021 (2012.01); F16H 57/04 (2010.01)
CPC F16H 57/029 (2013.01) [F16H 57/021 (2013.01); F16H 57/0424 (2013.01); F16H 57/045 (2013.01); F16H 57/0471 (2013.01); F16H 57/0472 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A drive assembly (10) comprising a transmission (14) with a shaft (12) and a first rolling bearing (16), the shaft (12) being mounted in the first rolling bearing (16), the transmission (14) comprising a radial shaft sealing ring (18) which sealingly rests against the shaft (12) and seals off the transmission (14) with respect to outside, wherein the transmission (14) also comprises a retaining ring (20) which is disposed axially in a gap (24) between the first rolling bearing (16) and the radial shaft sealing ring (18), the retaining ring (20) being configured to retain a fluid (22) in the gap (24) between the first rolling bearing (16) and the radial shaft sealing ring (18),
wherein the retaining ring (20) has a flat ring body (26) with a passage (28) through which the shaft (12) passes, and a trough-like section (30) disposed on the flat ring body (26), the retaining ring (20) being configured to retain the fluid (22) within the trough-like section (30),
wherein the trough-like section (30) has a wall (38), the trough-like section (30) being bounded by the wall (38) in a direction of the first rolling bearing (16) and by the flat ring body (26) in a direction of the radial shaft sealing ring (18).