Oil drip pan, planetary gearing and electric axle drive train

US12352349B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Robert Schieck · Nuremberg, DE
• Thomas Riedel · Wuppertal, DE

Key dates

• Filing date: Sep 14, 2022
• Grant date: Jul 8, 2025
• Expiry date: Sep 14, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H57/082
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An oil drip pan for rotationally fixed placement onto a shaft, which is rotatable about an axis, includes a pan bottom which extends in an axial direction, is closed on the circumference, and from which two pan walls extend radially inwards towards the axis. A channel is defined by the pan bottom and the two pan walls. The channel is arranged to, when the shaft rotates, receive hydraulic fluid. At least portions of the pan bottom have surface structures extending in the axial direction and protruding inwards in a radial direction out of the pan bottom. The surface structures are configured such that the hydraulic fluid flows over the surface structures in a circumferential direction when the shaft rotates, and solid particles from the hydraulic fluid are deposited in pan pockets defined by circumferentially adjacent surface structures.