Patent · US Active

Hydraulic assembly

US12292109B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Jonas Kniel · Karlsruhe, DE
Michael Heilmann · Bolingbrook, US
Maximilian Flack · Nuremberg, DE

Key dates

Filing date	Aug 2, 2022
Grant date	May 6, 2025
Priority date	—
Expiry date	Aug 2, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/0021
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic assembly of an electrically operable axle drive train having at least one electric machine and having a control unit, the hydraulic assembly including a first hydraulic pump for conveying a first hydraulic fluid from a hydraulic reservoir into a first hydraulic path, which is coupled to a first hydraulic connection point of a first switching valve, wherein the switching valve has a second hydraulic connection point, which is coupled to a second hydraulic path, the second hydraulic path connecting the second hydraulic connection point to a first cooling fluid connection point of the electric machine, and the electric machine including a second cooling fluid connection point, which is connected to a third hydraulic path coupled to a third connection point of the first switching valve, and wherein the first switching valve has a fourth hydraulic connection point, which is coupled to a fourth hydraulic path leading into the hydraulic reservoir.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.