Patent · US Active

Device for degassing and/or dehydrating a hydraulic oil, and hydraulic unit having a tank and having such a device

US11648492B2 · kind B2 · utility

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0References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bastian Reusch · Gemünden, DE
Hermann Mehling · Karlstadt, DE
Ralf Maier · Neuendorf, DE

Key dates

Filing date	Dec 17, 2019
Grant date	May 16, 2023
Priority date	—
Expiry date	Mar 24, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D19/0063
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device for degassing and/or dehydrating a hydraulic oil includes a flow lance, a flow duct, and a decoupling module. The flow lance includes a restriction site via which the hydraulic oil flows under a high pressure drop. The flow duct is configured as a pipe that is located downstream of the restriction site. The quantity of oil that flows via the restriction site and a throughflow cross section of the restriction site are coordinated to one another such that a cavitation zone or supercavitation zone forms downstream of the restriction site. The flow duct has a significantly larger cross section with respect to the throughflow cross section of the restriction site. For a quiet operation of the device, the flow lance is held in the decoupling module via which the flow lance is configured to be fastened in a vibration-decoupled manner to a tank.

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